CLICK!

GET MY 1.b4 COLLECTION
1.b4 collection contains much more games and lines than can be presented here.
Click here for more info!

Flag Counter

TESTD210 Release 2017-06-02
Send your 1.b4 games to me, please. Thank you! /Marek
Marek Trokenheim's homepage
(c) Marek Trokenheim

1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3

(...)

4…Rg8 5.Nf3 g6 (5...Bd6 6.Be2=) 6.Be2+= Bg7 7.0–0 Bd7 8.c4 dc4 9.Bc4 Nc6 10.d4 Qe7 11.Nc3 0–0–0 (11...a6 12.e4+/–) 12.Qc2 a6 13.b5 Na5 14.Bd3 Bb5 15.Nb5 ab5 16.Bb5 c6 17.Rfc1 Nd5 18.Bc3 cb5? (better is 18...Nc3 19.Qc3 Qc7+/–) 19.Ba5+– Nc7 (19...Kd7 20.Qd3 Ke8 21.Bd8 Kd8 22.Qb5 Qd7+–) 20.Bc7 Rd7 (20...Kd7 21.Qd3 Ke8 22.Bd8 Qd8 23.Qb5 Kf8 24.Qb4 Ke8 25.Qb7 Bf6+–) 21.Bd6 Rc7 22.Bc7 Qc7 23.Qc7 1–0. Fournier,Frederic – gerardohispano(C), Active, 2008.

4…h6 5.f4 a6 6.Nf3 Nc6 7.Be2 Bd7 8.h3 (8.0–0 Bd6+=) 8...Be7 9.c4 dc4 10.Bc4 Na7 11.Nc3 Nb5 12.Nb5 Bb5 13.Bb5 ab5 14.0–0 c6 15.d4 0–0 16.Ne5 Nd5 17.Qd3 Bf6 18.Ng4 Bh4 19.e4 Nb6 20.Ne5 Bf6 21.Nf3 Nc4 22.Qb3 Nb2 23.Qb2 Qd7 24.e5 (24.Ne5 Qd6=) 24...Be7 25.Rfd1 Qd5 26.Qc2 Ra4 27.Rd3? (better is 27.Re1!?+=) 27...Rfa8 28.g3 (28.f5!? Bb4! 29.fe6 Qe6–+) 28...Bb4! 29.Kg2 (29.ab4 Qc4 Double attack (29...Ra1 Pinning; 29...Ra1 Deflection; 29...Qc4 Decoy)) 29...Ra3 30.Raa3 Ra3 31.Ra3 Ba3 32.Qc3 (32.f5 b6–+) 32…b4 (32...b4 33.Qd3 b3–+) 0–1. Fournier,Frederic – Nikolaos9, Partie evaluee, 2m + 4s, 2008.

4…b5

5.Bb5 c6 6.Bc6?? Nc6–+ 7.Qe2 (7.Nc3 Rb8–+) 7...Be7 (7...Bd6 8.f4–+) 8.Nf3 0–0 9.0–0 Bd7 (9...Qb6 10.Nc3–+) 10.Nc3 a6 (10...Qc7 11.e4 Rab8 12.e5–/+) 11.e4 (11.Rfc1 Bd6–+) 11...de4 (11...d4 12.Nd1 e5 13.c4–+) 12.Ne4–/+ Ne4 13.Qe4 Rc8 (13...Qc7 14.Rac1–/+) 14.c4 Bf6 (14...Nb8 15.Rae1–/+) 15.Bf6 Qf6 16.b5 ab5 (16...Na5 17.Ne5 Rfd8 18.Rab1–/+) 17.cb5 Ne7 (17...Na5 18.a4–/+) 18.a4+= Nd5 19.Ne5 (19.Rfb1 Rb8+=) 19...Qe7 (19...Rfd8 20.Rfb1–/+) 20.Rfc1 (20.Rfb1!?+=) 20...Rc1–/+ 21.Rc1 Rc8 (21...Ra8 22.Rb1–/+) 22.Rc8 (22.Rb1 Ra8–/+) 22...Bc8 23.Qd4 (23.h3 Qa3–/+) 23...f6 (23...Qa3!? 24.h3 Bb7–/+) 24.Nd3 Bb7 (24...Qd8 25.Nb4+=) 25.a5 (25.Qa7!? Qc7 26.g3=) 25...Qc7–/+ 26.a6 (26.Qa4 e5–/+) 26...Ba8 27.h4 (better is 27.f3–/+) 27...Qb6 (better is 27...e5 28.Qg4 Nb6–/+) 28.Qc5 Qc5 29.Nc5 Kf7 (29...e5 30.g3=) 30.f3 (30.d4 Ke7=) 30...g5 (better is 30...e5!?+=) 31.hg5+= fg5 32.Na4 h5?? (better is 32...Nc7 33.Nc3 e5=) 33.b6+– Nb6 (33...Nb4 34.b7 Bb7 35.ab7+–) 34.Nb6 Bc6 35.a7 Ke7 36.Kf2 e5 37.a8Q (37.Ke3 Ke6+–) 37...Ba8 38.Na8 Kd6 (38...Ke6+–) 39.Ke3 Kd5 (39...g4 40.fg4 hg4 41.g3+–) 40.Nb6 Kc6 (40...Ke6 41.Ke4+–) 41.Ke4 Kb6 42.Kf5 1–0. Janek – tinhho, internet, 2017.

5.Bb5+/– c6 6.Bd3 Be7 7.f4 0–0 8.g4 Ne4 9.Be4 de4 10.Nc3 f5 11.g5 Kf7 (11...e5!?+=) 12.Qh5 Kg8 13.Nce2 Ba6 14.g6 h6 15.Nd4 Qd5 16.Nh3 Nd7 17.Ng5 Nf6 (17...e5!? 18.Nde6 Nf6=) 18.Nge6?? (18.Qh3 c5 A) 19.Nde6?! Qc4 20.Kd1 Rfc8= (20...hg5 21.Bf6 Qf1 22.Rf1 Be2 23.Ke2 Bf6 24.Qh7); B) 19.bc5+/–) 18…Nh5–+ 0–1. Matty_mills – Norfolk_and_good, ChessWorld.net, 2012.

5.Bb5+/– Bd7 6.Bd7 Qd7 7.Nf3 a5 8.0–0 (8.Bf6!? gf6 9.ba5 Ra5 10.c3+/–) 8...ab4+= 9.ab4 Ra1 10.Ba1 Bb4 11.Bf6 gf6 12.c3 Bd6 13.Qe2 Rg8 14.g3 e5 15.d3 Qg4 16.Nbd2 c5 (16...f5 17.e4 de4 18.de4+=) 17.Re1 Nc6 18.Nd4?? (better is 18.Ra1+=) 18...ed4 (18...cd4 19.f3 Qg6 20.ed4–+) 19.cd4? (19.Qg4 Rg4 20.ed4 Kd7–+) 19...Kd7 (better is 19...Qe2!? 20.Re2 cd4 21.Nb3–+) 20.dc5 Bc5 21.d4 Bb4 22.Qd3 Bd2 23.Qd2 Qe4 24.Rc1 h5 25.Qc3 Qe6 26.Qc5 h4 27.Kf1 hg3–+ 28.hg3 Qd6 29.Qb6 Ne7 30.Qb7 Ke6 31.Rc7 Rb8?? 32.Qb8+– Qa6 33.Kg2 Kf5 34.Qb7 Ng6 35.Qa6 (35.Qa6 Nf8 36.Rf7 Kg6 37.Qf6 Kh5 38.Kf3 Ng6 39.Rh7) 1–0. Fournier,Frederic (1990) – David1260 (1960), Active (3/0), 2004.

4...a5

5.ba5 Be7 6.c4 c5 7.d4= Nc6 8.cd5 ed5 9.dc5 Qa5 10.Nd2 0–0 11.Bd3 Bc5 12.Bf6+= gf6 13.Ke2 Re8 14.Nb3 Bg4 15.f3+/– Re3 16.Kf1 Qb6 17.fg4+/– Rae8 18.Bh7?? Kh7=+ 19.Qc2 Kg7 20.Nc5+= (20...Nd4 21.Qc1+=). bentengutama (2170) – igorm (2290), net–chess.com, 2003.

5.b5 a4 (--> 1.b4 a5 2.b5 d5 3.Bb2 a4 4.e3 e6 5.a3 Nf6).

5.b5 a4 6.c4 c6 (--> 5.b5 c6 6.c4 a4).

5.b5 Bc5 6.Nf3 Nbd7 7.Be2 0–0 8.0–0 Nb6 9.d3 Na4 10.Bd4 Bd4 11.Nd4 e5 12.Nf3 Qe7 Black prepares the advance e4 13.c4 Nb6 14.Nbd2 e4 15.de4 de4 16.Nd4 Be6 17.Ne6 Qe6 (worse is 17...fe6 18.Qc2+/–) 18.Qc2 Nbd7 19.Rac1 b6 20.a4 Nc5 21.Nb3 Nfd7 (21...Na4? 22.Nd4 Qd6 23.Qa4+–) 22.h3 Rad8 (22...Na4? 23.Nd4 Qf6 24.Qa4+–) 23.Bg4 f5 24.Nc5 Nc5 25.Be2 Rd6 26.Rfd1 Rfd8 27.Rd6 Rd6 28.Rd1 Qd7 29.Rd6 Qd6 30.g4 g6 31.Kg2 Kf7 32.Qd1 Ke6 33.f4 Qd1 34.Bd1 Kd6 35.Kf2 Nd3 36.Ke2 Kc5 37.Kd2 Kc4 38.Be2 h6 39.gf5 gf5 40.h4 Kb4–+ 41.Bd3 ed3 42.Kd3 Ka4 43.e4 Kb5–+ 44.e5 Kc6 45.Kc4 Kd7 46.Kb5 Ke6 47.h5 c6! 48.Ka4 Kd5 49.Kb3 b5 50.Kc3 a4 51.Kb2 b4 52.Ka2 c5 53.Kb2 Black now must not overlook the idea a3+ 53...c4 Black plans b3 54.Kc2 a3 55.Kb1 If White now only could play Kd4... 55...b3 56.Ka1 c3 57.Kb1 c2 58.Kc1 a2 59.Kb2 (59.e6 a1Q 60.Kd2 Qf1 61.Kc3 Qc4 62.Kb2 c1Q) 0–1. Fournier,Frederic (1825) – Takala (1755), Active, 2008.

5.c3 Na6 6.Nf3 Bd6 7.d3 0–0 8.Nbd2 c5 9.bc5 Nc5 10.Be2 b6 11.c4 Ba6 12.0–0 dc4 13.dc4 Be7 14.Nd4 Qc7 15.N2b3 Rfd8 16.Nb5?? Bb5–+ 17.Qc2 Ba4 18.Bf6 Bf6 19.Rab1 Bb3 20.Rb3 Nb3 21.Qb3 Rd2 22.Bf3 Rad8 23.a4 Rb2 24.Qa3 Rdd2 25.e4 h6 26.Qe3 Qc4 27.e5 Bg5 28.Qe1 Qa4 29.Qc1 Bh4 30.Qc8 Kh7 31.g3 Bg5 32.Kg2 Qd4 33.h4 Rf2 34.Rf2 Qf2 35.Kh3 Qf3 36.hg5 Qh5 0–1. horacyad2010 – malvadao, kurnik, 2011.

5.c3 c6 6.Nf3 b6 7.d4 c5 8.c4 ab4 9.ab4 Ra1–/+ 10.Ba1 cd4 11.Nd4 Bb4 12.Bc3 Bc3 13.Nc3 Ba6 14.Qa4=+ Qd7 15.Be2 Qa4–/+ 16.Na4 Nbd7 17.cd5= Be2 18.Ke2 Nd5–/+ 19.Rd1 Nc5 20.Nc5 Nc3–/+ 21.Kd2 Nd1–+ 22.Nb7? Nf2 23.Nd6 Ke7 24.N4b5 Rd8 25.Ke2 Ng4 26.h3 Ne3 (27.Nf7 Rd5–+ (< 27...Ng2 28.Nd8 Kd8 29.Kf3 Nh4 30.Ke4–+); 26...Rd6 27.Nd6 Kd6 28.hg4–+) 0–1. coloplayah (2175) – dixsept (2170), net–chess.com, 2007.

5.c4 ab4 6.ab4 Ra1 7.Ba1 Bb4 8.Bc3 Bc3 9.Nc3 0–0 10.Nf3 Re8 11.Be2 c6 12.0–0 Qa5 13.Qc1 Ne4 14.d4?? Qc3 15.c5 Qa5 16.Qc2 Na6 17.Ba6 Qa6 18.Rb1 f6 19.Ne1 e5 20.f3 Ng5 21.h4 Nf7 22.Kf2 ed4 23.ed4 Nh6 24.Rb6 Qa1 25.Rb1 Qd4 (26.Kf1 Bf5–+) 0–1. Kroll,Karsten – Wuertz,Marco, PF–op Bellheim, 1994.

5.ba5 Ra5

6.c4 dc4 7.Bc4 Nc6 8.Nf3 Be7 9.0–0 b5 10.Ba2 0–0=+ 11.d4 Ra8 12.Qc2 Bb7 13.Bb3 Na5=+ 14.Nbd2 Rc8 15.Ba2 c5 16.Qd1 cd4 17.Nd4 Nc4 18.Nc4 bc4 19.Bc3 Bd5 20.f3 Ba3–/+ 21.Bb1 Bc5 22.Kh1 Qb6 23.e4 Bc6 24.e5 Nd5 25.Qc2 g6 26.Nc6 Rc6–+ 27.Bd2 Bd4 28.Ra2 Be5 29.h4 Qc7 30.h5 Bf4 31.hg6 hg6 (32.Bf4 Qf4–+) 0–1. revbodio (1840) – thisside (1645), Live Game Caissa's Web, 2007.

6.Nf3 Nc6 7.c4 Be7 8.Nc3 0–0 9.cd5 ed5 10.d4 Re8 11.Bd3 Bg4 12.Be2 Ra8 13.0–0 Na5 14.h3 Bh5 15.Nd2 Be2 16.Qe2 c5 17.dc5= Bc5 18.Qb5 b6 19.Nb3 Rc8 20.Na5= ba5 21.Na4 Ba7 22.Qe2 Rc4 23.Nc3 d4?? 24.Qc4+– dc3 25.Qc3 Re7 26.Rfd1 Qb8 27.Rab1 Ne8 28.Rdc1 Bb6 29.a4 f6 30.Qc4 Kh8 31.Bd4 Rc7 32.Qb5 Rc1 33.Rc1 Bc7 34.Qb8 Bb8 35.Rc8 (35.Rc8 Bh2 36.Kh2+–) 1–0. Fournier,Frederic – astur (1715), Active, 2007.

6.Nf3 Nbd7 7.c4 Bd6 8.Nc3 0–0 9.d4 b6 10.cd5 Nd5 11.e4 Nc3 12.Bc3 Ra3 13.Ra3 Ba3 14.Bd3 Be7 15.0–0 c5 16.Qe2 (16.Qc2 Bb7+=) 16...Qc7+= 17.Bb2 Bb7 18.g3 h6 19.Rc1 Bf6 20.Kg2 Ra8 21.Bb5 Bc6 22.dc5 Bb5 23.Qb5 Bb2 24.Qb2 bc5 25.Qc2 Rb8 26.Nd2 Rb4 27.h3 Qd6 28.Nf3 Qc6 29.Rd1 g6 (worse is 29...Re4 30.Rd7 Qd7 31.Qe4+/–) 30.Nd4 Qb7 31.Nf3 Kg7 (31...Re4 32.Rd7 Qd7 33.Qe4+/–) 32.Qc3 e5 33.Qc2 (33.Qe3 Nf6 (33...Re4 34.Rd7 Qd7 35.Qe4+–) 34.Qc5 Rb5–/+) 33...Nf6 (33...Re4 34.Rd7 Qd7 35.Qe4+–) 34.Qc5 Rb5 35.Qa3 Ne4 36.Rd8 Nc5 37.Re8 Qc6 38.Qa8 (38.Re5?? Rb3 39.Qa2 Qf3 (39...Rf3?! 40.Rc5 Rf2 41.Kf2 Qc5 42.Kg2–/+) 40.Kh2 Nd3–+) 38...Qa8 39.Ra8 Nd3 40.Ra2 Rb1 (40...e4 41.Nd2 f5 42.Nc4–/+) 41.Nd2 Rb2 42.Rb2 Nb2 43.f4 ef4 44.gf4 Kf6 45.Ne4 Kf5 46.Kf3 Nd3 47.Nd6 Ke6 48.Nc4 f6 49.Ne3 Nb4 50.Nc4 Nc2 51.Nb6 Ne1 52.Kf2 Nd3 53.Ke3 Nb4 54.Kf3 Nc6 55.Nc4 Nd4 56.Ke4 Nc2 57.Kd3 Ne1 58.Ke3 Kd5 59.Nb6 Kd6 60.Kf2 Nc2 61.Nc8 Ke6 62.Kg3 Ne3 63.Nb6 Kd6 64.Nc8 Kd7 65.Na7 Ke6 66.Nb5 Kd5 67.Kf3 Nc2 68.Nc7 Kd6 69.Nb5 Kc6 70.Nc3 f5 71.h4 h5 (71...Kc5 72.Na4 Kd4 73.Nb6–/+) 72.Na4 Nb4 73.Nb2 Kc5 74.Na4 Kd6 75.Nb6 Nd5 76.Nc4 ˝–˝. marekt (2125) – bollewillem (2245), gameknot.com, 2014.

5.ba5 c5

6.Nf3 Be7 7.Be2 0–0 8.0–0 Nc6 9.d3 Qa5 10.Nbd2 b5 11.c4 bc4 12.dc4 Ne4 13.Ne4 de4 14.Ne5 Ne5 15.Be5 f6 16.Bb2 Rd8 17.Qb3 Bd7 18.Bc3 Qc7 19.a4 Bd6 20.g3 Rdb8 21.Qc2 Be5 22.a5 Bc3 23.Qc3 Rb4 24.Rfd1 Ba4 25.Rdb1 Rb1 26.Rb1 Ra5 27.Bh5 Ra8 28.Bg4 Kf7 29.Ra1 Bc6 30.Ra8 Ba8 31.Qa3 Bb7 32.Bh5 Ke7 33.Qa7 Kd6 34.Be8 Bc6 35.Qa6 Qb7 36.Qb7 Bb7 37.Bb5 Kc7?? (better is 37...Bc6 38.Bc6 Kc6–+) 38.Kf1 Kb6 39.Bd7 e5 40.Ke1 Ka5 41.Kd2 Kb4 42.Be6 Ba6 43.Bf5 h6 44.Be4 Bc4 45.f4 Kb3 46.Kc1 Kc3 47.h4 Bd3 48.Bd5 (better is 48.Bc6–+) 48...Bf5 49.e4 Bg4 50.fe5 fe5 51.Bf7 Kd4 52.Bg6 Bf3 53.Kd2 Be4 54.Bf7 c4 55.g4 c3 56.Kc1 Bf3 57.g5 hg5 58.hg5 e4 (58...e4 59.Be8 Be2–+) 0–1. Kozlowski,Tomasz (2065) – Bugalski,Michal (2215), Poznan op–A Poland, 2004.

5.ba5 Nc6

6.a6 ba6 7.Nf3 Rb8 8.Qc1 Be7 9.Be2 0–0 10.0–0 Ne4 11.d3 Bf6 12.Bf6 Qf6 13.Nbd2 Nc3–/+ 14.Re1 e5 15.e4 Be6 16.Bf1 d4–+ 17.Nb1 Rb1 18.Rb1 Nb1 19.Qb1 Rb8 20.Qa1 Qg6 21.Rb1 Rb6 22.Rb6 cb6 23.Qb2 b5 24.c4 Bg4 25.Be2 Bf3 26.Bf3 bc4 27.Qb7 Kf8 28.dc4 a5 29.Qc8 Ke7 30.Qc7 Kf8 31.Qc8 Ke7= 32.Qc7 ˝–˝. Fournier,Frederic – Mephisto Mondial, Match Active, 1999.

6.d3 Na5 7.Be2 c5 8.Nf3 Bd6 9.Nbd2 Bd7 10.0–0 b5 11.c4 bc4 12.dc4 0–0 13.cd5 ed5 14.Nb3?? Nb3?? 15.Qb3= Rb8 16.Qc2 Ne4 17.Rab1 Qe7 18.Bd3 f5 19.g3 Bb5 20.Bb5 Rb5 21.Bf6 Qb7 22.Rb5 Qb5 23.Ba1 Rb8 24.a4 Qb3 25.Qe2 Qa4–+ 26.Nh4 Qd7 27.Qa6 Be7 28.Qe2 Bh4 29.gh4 Rb6 30.Kh1 Rg6 31.Rg1 Rg1 32.Kg1 Qe6 33.Qh5 Qg6 34.Qg6 hg6 35.Kg2 c4 36.f3 Nd2 37.Kf2 Nb1 38.Ke2 Kf7 39.f4 Na3 40.Kd2 Nb5 41.Kc2 Nd6 42.Kc3 Ne4 43.Kd4 Ke6 44.Bb2 1–0. sunnyda – veleapanaite (1705), kurnik, 2011.

6.Nf3 Bd6 7.Be2 0–0 8.0–0 Ra5 9.Nc3 e5 10.d3 Bd7 11.Nd2 Qe7 12.Nb3 Ba3 13.Ba3 Ra3 14.Ra3 Qa3 15.Nb5 Qb4 16.d4 Nd4 17.N5d4 ed4 18.Nd4 Ra8 19.Bd3 Ra2 20.h3 c5–+ 21.Nf3 c4 22.Be2 Ba4 23.Ne1 Qb2 0–1. Fournier,Frederic (2215) – Mephisto Mondial, Match Active, 2001.

5.b5 b6

6.a4 Bd6 7.Nf3 0–0 8.Be2 Nbd7 9.d4 Ne4 10.0–0 Bb7 11.Bd3 Qf6 12.Be4 (12.Ba3 Rac8=) 12...de4+= 13.Nfd2 Qh4 14.h3 f5 15.Nc4 f4 16.Nd6 cd6 17.Qg4 (17.ef4!? Qf4 18.Bc1+=) 17...Qg4–/+ 18.hg4 fe3 19.fe3 Nf6 (19...Rf1 20.Kf1 Nf6 21.Nd2–/+) 20.Rf4 (20.Na3!? Rac8 21.c4–/+) 20...g5–+ 21.Rf2 Ng4 22.Re2 Rac8 23.Nc3 Rc7 24.Rc1 h5 25.Nd1 Bd5 26.Ba1 (26.Ba3 Rd8–+) 26...Rc4 27.Nb2 Rc3 28.Nd1 Ra3 29.c4 Bc4! 30.Rec2 (30.Rc4 Ra1 Deflection (30...Ra1 Overloading)) 30...Rf1 0–1. mikebaldini (1690) – bob3d (1870), gameknot.com, 2014.

6.c4 c6 7.bc6 Nc6 8.cd5 Nd5 9.Nf3 Bd6 (9...Bb7 10.Bb5=) 10.Bb5 (better is 10.Bg7!? Rg8 11.Qc2+–) 10...Bd7+= 11.Qa4 Rc8 12.Nc3 Nf6 13.0–0 0–0 14.Rac1 Ne5 15.Ne5 Be5 16.Bd7 Qd7 17.Qd7 Nd7 18.Na4 (18.d4 Bb8=) 18...Bb2 19.Nb2 Rc5 (19...b5 20.Rc3+=) 20.d4 Rb5 21.Rb1 Nf6 (21...Rc8!?=) 22.Rfc1 Ne4 (22...Nd5 23.e4 Nf4 24.Kf1=) 23.Nd3 (23.Nc4!? Rb1 24.Rb1+/–) 23...Rb1+= 24.Rb1 Rb8 25.f3 Nd2 26.Rb5 Nc4 27.a4 Nd6 (better is 27...Ne3!? 28.Ne5 Nd5–/+) 28.Rb1 b5 29.ab5 Rb5 (worse is 29...Nb5 30.Ne5+/–) 30.Rb5 Nb5 31.Nc5 Nc3 32.Kf2 a4 33.Ke1 a3 34.Kd2 a2 35.Nb3 Nd5 36.e4 Nb4 (36...Nf4!?+=) 37.Na1 (37.Kc3 Nc6+/–) 37...Kf8 38.Kc3 Na6 39.Kb3 Nc7 40.Ka2 Nb5 41.Nc2 Nc3 42.Kb3 Ne2 43.Kc4 Nf4 44.Ne1 Ke7 45.g3 Ne2 46.Kd3 Ng1 47.Ke3 Kf6? 48.f4 g5? 49.fg5 Kg5 50.Nf3 Nf3 51.Kf3 h5 52.h4 Kg6 53.Kf4 f6 54.d5 e5 55.Ke3 Kf7 56.Kd3 Ke7 57.Kc4 Kd8 58.Kc5 Kc7 59.d6 Kd7 60.Kd5 Kd8 61.Ke6 Ke8 62.Kf6 (62.Kf6 Kd7 63.Ke5+–; 62.d7 Kd8 63.Kd6 f5 64.ef5 e4 65.f6 e3 66.f7 e2 67.f8Q) 1–0. Fournier,Frederic – catrauca1, Active, 2009.

6.d4 Bd6 7.Nf3 Nbd7 8.Be2 0–0 9.0–0 Bb7 10.Nbd2 Rc8 11.c4 dc4 12.Nc4 Be7 13.Nce5 Ne5 14.Ne5 c6 15.Bf3 Nd5 16.bc6 Bc6 17.Rc1 Bb7 18.Rc8 Qc8 19.Qb3 Qb8? (19...f6 20.Rc1 Qe8 21.Nc4+=) 20.Rb1 (20.Nd7 a4 21.Qd3 Qe8 22.Nf8 Bf8+–) 20...f6? (better is 20...Rd8+=) 21.Nd7+– Qd6 (21...a4 22.Qd1 (22.Nb8?! ab3 23.Nd7 Rc8=) 22...Qa7 23.Nf8 Bf8 24.e4+–) 22.Nf8 Kf8 23.Bc1 (23.e4 Nf4 24.Bc1 Ng6+–) 23...Bd8 (23...a4 24.Qb2 (< 24.Qa4 Nc3 25.Qc2 Nb1 26.Bb7 Na3 27.Qc8 Kf7+/–) 24...f5 25.Bd5 Qd5 26.f3+–) 24.Bd2 (better is 24.e4!? Ne7 25.e5 Qd7 26.ef6 Nd5 27.fg7 Qg7+–) 24...Bc6 25.Bd5 (25.Rc1!? Bd7+–) 25...Bd5 26.Qb5 (26.Qc2!? Kg8 27.e4+–) 26...Bc7 27.g3 Bc6 (27...Qa3 28.Rc1 Qe7 29.Qa4+=) 28.Qe2 (better is 28.Qh5+/–) 28...Qa3?? (better is 28...Qd5 29.f3 Qf3 30.Qf3 Bf3+=) 29.Rc1+– Qd6 30.Qc4 Bf3 (30...Ba8 31.Ba5!! ba5 32.Qc7 Qd5 33.Qc5 Kf7 34.Qd5 Bd5 35.Rc7 Kg8+–) 31.Qc7 Qd5 (31...Qc7 32.Rc7 Bd5+–) 32.Qc6 (better is 32.g4 Bg4 33.Qb8 Kf7 34.Rc7 Kg6 35.Qg8+–) 32...Qc6–/+ 33.Rc6 (33...Bc6 34.Bc3–+) 1–0. slavisa11 – mrsolo, Live Game Caissa's Web, 2004.

6.Nf3 Bb7 7.d4 c5 8.dc5 Bc5 9.c4 0–0 10.cd5 Nd5 11.Be2 Nd7 12.0–0 N7f6 13.Nc3 Nc3 14.Bc3 Rc8 15.Qd8 Rfd8 16.Bd4 Bd4 17.Nd4= Ne4 18.Rfc1 Rc1 19.Rc1+= h6 20.Nc6 Bc6 21.bc6+/– Nc5 22.Bf3 Rc8 23.g3 e5 24.Bd5 Kf8 25.e4 Ke7 26.Rb1 Na4 27.f3 f5 28.Kf2 fe4 29.Be4 g5 30.g4 Kd6 31.Rd1 Ke6?? 32.Rd7 Kf6 33.Rh7 Nc3 34.Rh6 Kg7 35.Rg6 Kf7 36.Rg5 Ne4 37.fe4 Rc6 38.Re5 Rc3 39.Rb5 Ra3 40.Rb6 Ra4? 41.Kf3 Ra3 42.Kf4 Ra2 43.h4 Rh2 44.h5 Rf2 45.Ke5 a4 46.Ra6 Rg2 47.Kf5 Rf2 48.Kg5 Re2 49.Ra4 Ke6 50.Ra5 Kf7 51.e5 Ke6 52.h6 Rh2 53.Kg6 Ke7 54.g5 Rf2 55.h7 Rf8 56.Ra7 Ke6 57.Kg7 Rc8 58.h8Q Rh8 59.Kh8 Ke5 60.g6 Kf6 61.g7 (61.g7 Ke6 62.g8Q Kd6 63.Qd8 Ke5 64.Re7 Kf4 65.Qd4 Kf3 66.Qf6 Kg4 67.Rg7 Kh5 68.Qg5) 1–0. Fournier,Frederic – jabali, Active, 2008.

6.Nf3 Bb7 7.d4 c6 8.bc6 Nc6 9.c4 dc4 10.Bc4 Bd6 11.Nbd2 0–0 12.0–0 Na7 13.Rc1 b5 14.Bd3 b4 15.ab4 Bb4 16.Qb3 Bd5 17.Bc4 Bc4 18.Nc4 Rc8 19.Ba3 Nd5 20.Bb4 Nb4 21.Nfd2 Nac6+= 22.Ra1 Qd5 23.Nb6 Qb3 24.Nb3 Rb8 25.Nd7 Nc2 26.Rab1 a4 27.Nb8 Rb8 28.Nc5 Rb1+/– 29.Rb1 g6?? 30.Na4 N6b4 31.Nc5 Kf8 32.Kf1 Ke7 33.Ke2 Kd6 34.Kd2 e5 35.Nd3 Nd3 36.Kd3 ed4 37.Kc2 de3 38.fe3 1–0. Fournier,Frederic (1810) – litowai, Active, 2008.

6.Nf3 Bd6 7.c4 0–0 8.Nc3 Re8 9.Be2 c5 10.bc6 Nc6 11.Rc1 Bb7 12.cd5 ed5 13.0–0 Rc8 14.Qb3 Attacks the isolani on d5 14...Ne5 15.Ne5 Be5 16.Na4 Attacks the backward pawn on b6 16...Bc7 17.Rc2 Ne4 18.g3 Bb8 19.Rfc1 Rc2 20.Rc2 Re6 21.d3 Nf6 22.Bf3 Rd6 23.Bd4 Ba7 24.Nc3 Rd7 25.Nb5 Bb8 26.a4 Kh8 27.Qc3 h6 28.Kg2 Qc7?? (better is 28...Ne8+/–) 29.Nc7+– Rc7 30.Qa3 Rc2 31.Qf8 Kh7 32.Bf6 gf6 33.Qf7 Kh8 34.Qb7 Rc5 35.Qb8 Kg7 36.Qb7 Kg8 (36...Kh8 37.Bh5 Rc8 38.Bg6 Rc7 39.Qc7 Kg8 40.Qf7 Kh8 41.Qf8) 37.Bh5 Kh8 (37...Rc1 38.Qf7 Kh8 39.Bg6 Rg1 40.Kg1 b5 41.Qf8#) 38.Bg6 Rc7 39.Qc7 Kg8 40.Qf7 1–0. marekt – bob3d, internet, 2014.

6.Nf3 Bd6 7.Bd3 Nbd7 8.0–0 0–0 9.Nd4 Bb7 10.e4? (better is 10.f4!?=) 10...Ne4 11.f3 (better is 11.Qe2!?–/+) 11...Qh4–+ 12.g3 Ng3 13.Qe1 Nf5 14.Rf2 (14.Qh4 Nh4 15.Nc3–+) 14...Nd4 15.Bd4 Qd4 16.Nc3 Bc5 17.Ne2 (17.Kg2 Qf2 18.Qf2 Bf2 19.Kf2 Nc5–+) 17...Qf6 18.Bh7 (18.Rd1 Ne5 19.Bh7 Kh7–+) 18...Kh7 19.d4 Bd4 20.Nd4 Qd4 21.c3 Qc5 22.a4 Rh8 23.Rd1 Kg8 24.Kf1 (24.Kg2 c6 25.Re2 Rh6–+) 24…Rh4 0–1. tekkeryole – vind3x, gameknot.com, 2014.

6.Nf3 Nbd7 7.c4 Bb7 8.Be2 Bd6 9.a4 0–0 10.Ba3 Nc5 11.Nc3 Nce4 12.0–0 Nc3 13.dc3 Rc8 14.Nd4 c5 15.bc6 Bc6 16.Bf3 Bb7 17.Nb5 Ba3 18.Ra3 Rc4 19.Qb1 Ba6 20.Rd1 Bb5 21.Qb5 Qc7 22.Rc1 Rb8 23.Qb2 Nd7 24.Be2 Rc5 25.Qc2 Rc8 26.e4 d4! 27.c4 (27.cd4 Rc2 Pinning (27...Rc2 Deflection)) 27...Ne5 28.Rh3 Nc4 29.e5 g6 30.Qb3 Qe5 31.Bc4 (31.Re1 Qf4–+) 31...Rc4! 32.Rf1 (32.Qc4 Rc4 Double attack; 32.Rc4 Qe1 mate Mate attack) 32...Rc1 33.g3 (33.Qd3–+) 33...Rf1 34.Kf1 Rc1 35.Kg2 Qe4 36.Qf3 Qe1 37.g4 Qg1 0–1. Vila Vila,Ricard – Basora Pascual,Pau (1750), Moia ESP, 2nd Open, 2013.

6.Nf3 Nbd7 7.d4 Bb7 8.Nbd2 Rc8 9.c4 c5 10.Rc1 Be7 11.Be2 0–0 12.0–0 h6 13.a4 Re8 14.Qb3 dc4 (14...cd4 15.Bd4 Bb4 16.Rfd1=) 15.Bc4 Bd5 16.h3 cd4 17.Bd4 Nc5 18.Bc5 Bc5 19.Bd5 Qd5 20.Qd5 ed5 21.Nb3 Re4 (21...Ne4 22.h4+=) 22.Nbd4 Nd7 23.Rfd1 Kf8 24.Nf5 (24.Nd2!? Ree8 25.Nc6+=) 24...Ra4= 25.Rd5 Nf6 26.Rd3 Re8 27.N5d4 Bd4 28.Nd4 (worse is 28.ed4 Rb4–/+) 28...Ne4 29.Rcd1 (29.Kf1!?=) 29...Ra2–/+ 30.f3 (30.Rf1 a4–/+) 30...Nf2 31.R1d2 Nd3 32.Ra2 Re3 33.Ra3 Re1 34.Kh2 Nb4 35.Rc3 Rd1 36.Nc6 (36.Nf5 Rd8–/+) 36...Rd6 (36...Nd5!? 37.Rc2–+) 37.Nb4–/+ ab4 38.Rb3 Rd4 39.Kg3 Ke7 40.Kf2 Kd6 41.Ke3 Kc5 0–1. Babanau,Vasil – Valenta,Alvydas (1740), Vilnius LTU, Saltinis Open, 2013.

5.b5 c5

6.a4 Bd6 7.Nf3 Nbd7 8.g3 0–0 9.Bg2 b6 10.0–0 Bb7 11.d3 Qc7 12.Nbd2 Rad8 13.d4 e5 14.de5 Ne5 15.Ne5 Be5 16.Be5 Qe5 17.Nf3 Qc3 18.Qd3 Ne4 19.Rfd1 Qf6 20.Qf1 Bc8 21.Rd3 Bg4 22.Nd4? (22.Nd2 Be2! 23.Ne4 de4 24.Rd8 Bf1 25.Rf8 Kf8 26.Rf1–+) 22...cd4–+ 0–1. Ivanov,Nikolay (2020) – Toth,Imre G (2240), 17th USCCC–P05, 2004.

6.c4 d4 7.d3 b6 (7...e5 8.Be2=) 8.Nf3 de3 9.fe3 Bb7 10.Be2 Be7 11.0–0 Nbd7 12.Nbd2 (12.Nfd2 Bd6=) 12...0–0 (12...Ng4 13.Re1 Ne3 14.Qb1–/+) 13.a4 (13.Qe1 Qc7=) 13...Qc7 (13...Ng4!? 14.Qb3 Ne3–/+) 14.Qc2 (14.h3 Rad8=) 14...e5 (14...Ng4 15.Qc3 Ndf6–/+) 15.Rad1?? (15.Nh4 Rfe8=) 15...Ne8?? (better is 15...Ng4 16.e4 Ne3–+) 16.d4= ed4 17.ed4 cd4 18.Bd4 Bc5 19.Bf2 (19.Ne4 Be4 20.Qe4 Nef6=) 19...Nef6= 20.h3 (20.Nd4 Rad8=) 20...h6 (20...Rfe8 21.Bd3+=) 21.Qf5 Bf2 22.Rf2 Qc5 23.Qc2 Rfe8 24.Bd3 Rac8 25.Rdf1 Nh5 26.Be4 Be4 27.Ne4 Re4 28.Qe4 Ng3 29.Qg4 Nf1 30.Qd7 Ne3 31.Ne5 Rc7 The backward pawn on c4 becomes a target 32.Qd8+/– Kh7 33.Nc6 Rb7= 34.Qc8 Nd1 35.Qf5 Qf5 36.Rf5 Nb2 37.c5 bc5 38.Na5+/– Rb8 39.Nc6+– Rb7 40.Rf4 c4 41.Na5 c3–/+ 42.Nb3 c2 43.Nc1 Rd7 44.b6 Rd1–+ 45.Kh2?? Rc1 46.b7 Rh1! 47.Kg3 c1Q 48.b8Q Qe1 49.Rf2 Nd3 50.Qb6 Qf2 51.Qf2–+ Nf2 52.Kf2 Ra1 53.a5 Ra5 0–1. Shabanay,Lefter – Boev,Viktor (1645), 12th Kesarovski–Stanchev Mem–B, 2013.

6.c4 d4 7.ed4 cd4 8.Nf3 Bc5 9.d3 (9.Bd3 0–0=) 9...0–0 10.g3 (10.Nbd2 a4=) 10...Re8+= 11.Bg2 e5 12.0–0 Bg4 (12...Qc7 13.h3+=) 13.Nbd2 Nbd7 14.Qc2 (14.h3 Bh5+=) 14...Qc7 15.Rac1 (15.Rae1 Rac8+=) 15...Bb6 (15...Rac8 16.Rfe1+=) 16.Nb3 (16.h3 Be6+=) 16...a4–/+ 17.Nbd4 (17.Nbd2 Nc5–/+) 17...ed4–+ 18.Nd4 Nc5 (18...Qd6 19.Qc3 Ra7 20.Rc2–+) 19.Nf3 (19.Rfe1 Qd7–+) 19...Bf5–+ 20.Bf6 (20.Rcd1–+) 20...Bd3 (worse is 20...gf6 21.Rcd1 Rad8 22.Rfe1–+) 21.Qc3 Ba5 (21...Bf1!? 22.Be5 Re5 23.Qe5–+) 22.Qd4 (better is 22.Be5!? Bc3 23.Bc7 Bf1 24.Rc3 Bg2 25.Kg2–/+) 22...gf6–+ 23.Rfd1 Bg6 24.Qf6 (24.Qd6 Rac8 25.Bh3 f5–+) 24...Ne4 (24...Nb3!? 25.c5 Nc1 26.Rc1–+) 25.Qb2 Bb6 26.Rf1 (26.Rc2 Nd6 27.Rcc1 Rad8–+) 26...Rad8 27.Rce1 (27.Qb4 Qc5–+) 27...Ba5 (27...Qc4 28.Ne5 Qd4 29.Qd4 Rd4 30.Ng6 hg6 31.Be4 Rde4 32.Re4 Re4 33.Rc1–+) 28.Rc1 (28.Re3 Qc4 29.Ne5 Qd4 30.Qd4 Rd4 31.Ng6 hg6–+) 28...Nc5 (28...Rd3 29.Rfd1 Rb3 30.Qe2–+) 29.Qf6 Re6 (29...Nd3 30.Rcd1–+) 30.Qh4 Qe7 (30...Re4 31.Qf6–+) 31.Qh3? (31.Rfd1 Qh4 32.Nh4 Rd1 33.Rd1 Bc2–+) 31...Nd3 (31...Bd3!? 32.Nh4 Bd2 33.Rcd1 Bf1 34.Rf1–+) 32.Rcd1 Bb6 33.Nh4 Re2 34.Ng6 hg6 35.Bd5 Nf2 36.Bf7 Kg7 37.Qh4 Nd1 38.Kh1 Nf2 39.Kg1 0–1. Gapp,Wolfgang (1855) – Laske,Erich (2025), AUT–chT3, 1998.

6.c4 d4 7.Nf3 de3 8.fe3 Be7 9.Qc2 Nbd7 10.Be2 (10.Bd3 b6+=) 10...Qc7 (10...b6 11.Nc3=) 11.d4 (11.Nc3 b6=) 11...b6 12.0–0 Bb7 13.Nfd2 (better is 13.h3!?+=) 13...Bd6–/+ 14.h3? (better is 14.Bf3 Bh2 15.Kh1 cd4 16.ed4 Bf3 17.Rf3–/+) 14...e5?? (better is 14...Bh2 15.Kh1 Bg2 16.Kg2 Qg3 17.Kh1 Qh3–+) 15.Bf3 (15.d5 0–0+=) 15...0–0 (better is 15...Bf3 16.Nf3 cd4 17.ed4 0–0+=) 16.Bb7+/– Qb7 17.Nf3?? (better is 17.d5+/–) 17...ed4 (17...cd4 18.ed4 ed4 19.Bd4–/+) 18.ed4+= cd4 19.Nd4 Rfe8 20.Nd2 Rac8 (20...Qc7 21.Rae1–/+) 21.Nc6 Ne5 ˝–˝. Braeken,B – Houben,S, Brunssum II–Heerlen II, 1999.

6.c4 Be7 7.Nf3= 0–0 8.Be2 b6 9.0–0 Bb7 10.Re1 (10.cd5 ed5 11.d4 Nbd7=) 10...Nbd7 11.Nc3 d4 (better is 11...dc4 12.Qc2 Bd6+=) 12.ed4+/– cd4 13.Nd4 Ne5 (13...Qc7 14.Nc6 Bd6 15.g3+/–) 14.Na4+/– Bd6 15.h3 (15.Nf3 Ned7+/–) 15...Rc8 16.d3 Bb8 (16...Re8 17.Qd2+/–) 17.Nf3 (17.g3!?+/–) 17...Bf3 18.Bf3 (18.gf3 Nh5 19.Bc1 Ng6–/+) 18...Nd3 19.Bf6 gf6 20.Re3 Ne5 21.Qd8 (21.Be2 Nd7 22.Rb1 Qc7 23.Rg3 Kh8+=) 21...Rfd8 (worse is 21...Rcd8 22.Nb6 Rd2 23.c5+/–) 22.Nb6 Nc4?? (better is 22...Nf3 23.Rf3 Rc5+=) 23.Nc8+– Ne3 (23...Rc8 24.Rd3 Ne5 25.Bb7+–) 24.Ne7 (24.fe3?! Rc8 25.Bc6 Kf8+=) 24...Kf8 (24...Kg7 25.Nc6 Nc2 26.Ra2+– (26.Nd8?! Na1 27.b6 a4+–)) 25.Nc6 (25.fe3?! Ke7 26.Rd1 Rd1 27.Bd1 Kd6=) 25...Nc2 26.Rc1 (26.Nd8?! Na1 27.b6 Nb3+–) 26...Rd2 (26...Bf4 27.Rc2 Rd3+–) 27.Nb8 1–0. Ivanets,Vladimir (2110) – Rodionov,Roman (1950), Voronezh RUS, 2014.

6.c4 Be7 7.Nf3 b6 8.Qc2 Bb7 9.Nc3 d4 10.ed4 Bf3 11.gf3 cd4 12.Ne4 0–0 13.Bd3 Nh5 14.0–0–0 (better is 14.Ng3!? Nf6 15.Ne4=) 14...Nf4 15.Rhg1 Nd3 (better is 15...Nd7!? 16.Bd4 Ba3 17.Kb1 f6–/+) 16.Qd3= e5 17.Rg2 f5 18.Ng3 Qd7 19.Rdg1 Kh8 (better is 19...g6!?=) 20.f4 ef4 (better is 20...e4!? 21.Ne4! g6+–) 21.Nh5 g6 22.Nf4 (22.Qd4?! Qd4 23.Bd4 Kg8+/–) 22...Bf6 23.Nd5 Bd8 (23...Qe6 24.Nc7 Qc8 25.Na8 Nd7 26.Bd4 Qa8 27.Bf6 Nf6+–) 24.Qd4 (24.Qd4 Bf6 25.Nf6 Qd4 26.Bd4 Rf6 27.Bf6 Kg8 28.Re1+–) 1–0. combijack (1770) – daletedoy (1715), gameknot.com, 2012.

6.c4 Be7 7.Nf3 b6 8.Nc3 0–0 9.d4 Bb7 10.Rc1 Nbd7 11.Be2 (11.cd5 ed5 12.dc5 Nc5=) 11...Rc8 (11...dc4 12.Na4+=) 12.Na4 (12.cd5 Nd5 13.Nd5 Bd5=) 12...Ne4 (12...cd4 13.Qd4 Nc5 14.Nc5 Bc5 15.Qc3+=) 13.0–0 Ndf6 (better is 13...cd4!? 14.Nd4 Ndc5=) 14.Ne5 cd4 15.Qd4 (15.Bd4!? Nc5 16.cd5 ed5 17.Bf3+=) 15...Nc5= 16.Nc5 Bc5 17.Qd2 (17.Qf4 Qe7 18.a4 Rfd8=) 17...Ne4 18.Qc2 Qe7 (18...dc4 19.Bc4 (worse is 19.Qc4 Be3 20.Nc6 Bc1 21.Rc1 Bc6 22.bc6 Nc5–+) 19...Nd2 20.Rfd1+=) 19.a4= Rfd8 20.Rfd1 Qg5 (20...Qe8 21.cd5 Bd5 22.Bc4=) 21.Nf3 (21.Bf3!?=) 21...Qh6+= 22.Bd4 Bd4 23.Rd4 (23.Nd4 Qf6 24.Bd3 Nd6–/+) 23…f5 ˝–˝. Wise,D – Donnelly,MJ, Teesside, 1969.

6.c4 Be7 7.Nf3 Nbd7 8.Nc3 b6 9.Qb3 (9.Be2 dc4 10.Bc4 e5=) 9...Bb7 (9...d4 10.Nd1=+) 10.Be2= d4 11.Na4 e5 12.0–0 (12.d3 0–0=) 12...d3 13.Bd1 (< 13.Qd3 e4 14.Qc2 ef3 15.Bf3 Bf3 16.gf3 0–0–+) 13...e4 (13...Qc7 14.Qd3 e4 15.Qc2 ef3 16.Bf3 Bf3 17.gf3–+) 14.Ne5 Ne5 15.Be5 0–0 16.f3 Nd7 17.Bb2 Bd6 18.g3 Qc7 19.Kg2 (19.fe4 Bg3 20.Qd3 Bh2 21.Kh1 f5=+) 19...f5 20.fe4 (20.Nc3 Ne5=+) 20...Ne5–/+ 21.Nc3 fe4 22.Rf4 Ng6 (22...Nf3 23.Re4 Nd2 24.Qa4–+) 23.Rf8 Rf8 (23...Nf8?! 24.Bg4=; 23...Kf8?! 24.Bg4=; 23...Bf8?! 24.Bg4=) 24.Bh5 Qf7 25.Qd1 Qf2 26.Kh1 Ne5 27.Bg4 (27.Rb1 Nc4 28.Qb3=) 27...Nf3 (27...Ng4 28.Qg4 Qd2 29.Qe6 Kh8 30.Qd6+/–) 28.Bf3 ef3 (28...Rf3?! 29.Na4 Bc7 30.Qe1–+; 28...Qf3?! 29.Qf3 ef3 30.Rf1–/+) 29.Qf1 Qd2 0–1. Diener,Rudolf – Szewczyk,Gerard, corr ICCF EU/M/1224, 2000.

6.bc6 Nc6 7.Bb5 Bd6 =.

6.bc6 Nc6 7.Nf3 Bd6 8.Bb5 Bd7 9.0–0 0–0 10.c4 dc4 11.Bc4 Qb6 (11...Rc8 12.d3=) 12.Qc1 (12.Bf6 gf6 13.Nc3 Rfc8+=) 12...Ne7 13.Bd4 Qc7 14.Be2 Qc1 15.Rc1 Nc6 (15...Ned5 16.Be5 Be7 17.Nc3=) 16.Bb2 (16.Bf6 gf6 17.Nc3 Rac8+=) 16...Rac8 17.Nc3 e5 18.d3 Be6 19.Nb5 Be7? (better is 19...Bb8=) 20.Ne5+– Ne5 21.Be5 Rc1 22.Rc1 Ba3? (better is 22...b6+–) 23.Na3 Rc8 24.Rc8 Bc8 25.d4 Nd5 26.Bf3 Nc3 (26...Ne7 27.Nc4 a4 28.Nb6+–) 27.d5 Nb1 (27...b5 28.Bc3 b4+–) 28.Nb1 1–0. Fournier,Frederic – eduardoramon, Owl21.com, 2008.

6.bc6 Nc6 7.Nf3 Bd6 8.c4 0–0 9.cd5 Nd5 10.Nc3 Nc3 11.Bc3 b6 12.Be2 Ba6 13.0–0 Be2 14.Qe2 Rc8 15.Rfc1 Qe7 16.Bb2 Rfd8 17.d4 e5 18.de5 Ne5 19.Ne5 Be5 20.Be5 Qe5 21.Qe1 Qd6 22.Rc8 Rc8 ˝–˝. Fournier,Frederic – Cb_account, Partie evaluee, 0m + 4s, 2008.

6.bc6 Nc6 7.Nf3 Bd6 8.c4 0–0 9.cd5 Nd5 10.Be2 b6 11.0–0 Ba6 12.Nc3 Be2 13.Qe2 Nc3 14.Bc3 Be7 15.d4 Rc8 16.Rfc1 Bf6 17.Bb2 Ne7 18.Qb5 Qd5 19.Rc8?? (better is 19.Qd3=) 19...Qb5–+ (19...Nc8 20.Qd5 ed5 21.a4+=) 20.Rf8 Kf8 21.Bc3 (21.Bc1 Qd3 22.h3 Qd1 23.Kh2 Qf1–+) 21...Nd5 (21...Qb3!? 22.Bd2–+) 22.Be1 (22.a4 Qd3 (22...Nc3 23.ab5 Bd8 24.Ne5+=) 23.Bd2 Nb4–+) 22…Qb2 (22...Qb2 23.Rd1 Qa3–+) 0–1. Fournier,Frederic (1960) – CARDON, Active (5/0), 2005.

6.d4 c4 7.a4 Bb4 8.Bc3 (8.c3 Bd6=) 8...0–0+= 9.Bb4 ab4 10.Nf3 Nbd7 11.Be2 Re8 12.0–0 e5 (better is 12...Qa5+=) 13.de5+/– Ne5 14.Nd4 (better is 14.Ne5!? Re5 15.Bc4+=) 14...Bd7 15.Nd2 Qe7 16.N2f3 Ne4 17.Ne5 Nc3 18.Qd2 Qe5 19.Bf3 Qd6 (19...Ra5 20.Ne2 Be6 21.Nc3 bc3 22.Qc1+=) 20.Ne2= Ne2 21.Be2 Qe6 (better is 21...c3!? 22.Qd4 Re4=) 22.Bf3+/– Qg6 23.Qd5 Bf5 (23...Be6 24.Qb7 Qc2 25.Qa8 Ra8 26.Ba8 Qf5+–) 24.Qc4+– Bc2 25.Qb4 Rab8 26.a5 Re5 27.Rfc1 Be4 28.Be4 Re4 29.Qc5 Rg4?? (29...Ree8+–) 30.Qc8! 1–0. bobby fissure – craig4000, ChessWorld.net, 2012.

6.d4 c4=+ 7.a4 Bd6 8.Ba3 0–0 9.Bd6 Qd6=+ 10.Nf3 Nbd7 11.Qc1 e5=+ 12.Qa3 Qc7 13.Nc3 Re8 14.Be2 Ne4?? 15.Nd5+– Qd8 16.Bc4 ed4 17.Nd4 Ne5 18.Qa2 Qh4 19.g3+/– Qh3 20.Nf4 Qf5?? 21.Nf5 (21...Bf5 22.Bd5+–) 1–0. BlueNoteTokyo (2150) – chemer (2095), ICC, 2003.

6.Be2 Bd6 7.f4 Nbd7 8.Nf3 0–0 9.0–0 b6 10.Qe1 Qc7 11.Qg3 Bb7 12.Qh4 Rfe8 13.Nc3 e5 14.fe5 Ne5 15.Ne5 Re5 16.Rf6 gf6 17.Bd3 Rg5 18.Bh7 Kf8 19.g3 Be5 20.d4 cd4 21.ed4 Bf4 22.Kf2 Bd6 23.Bd3 Kg7 24.Qh7+= Kf8 25.Ne2 Re8 26.Rf1 Rg7 27.Qh8 (White fights for the Initiative) 27...Rg8 28.Qh6 Rg7 29.Kg2 Re6 30.Bc1 Qd8 31.Qh5 Ke7 32.Nf4 Bf4 33.Bf4 Rg8 34.Bf5 Re4 35.Kg1 Rd4 36.Qe2 Re4 37.Be4 de4 38.c4 Qd4 39.Be3+– Qd6 40.Rd1 Qc7= 41.Rc1 Rc8 42.Qd2 a4 43.Qb4+– Ke6 44.Qa4 Qd6 45.Qb4 Rd8 46.Qd6 Rd6 47.a4 Ba8 48.Kf2 f5 49.Ra1 f6 50.a5 ba5 51.Ra5 Bb7 52.h4 Rd3 53.h5 Rb3 54.h6 Rb2 55.Kg1 Rb3 56.h7 Re3 57.h8Q Rg3 58.Kh2 (58...Rc3 59.Ra7+–) 1–0. Woelfelschneider,Peter – Schrecke,Volkmar, T8e–02 TSC, 2002.

6.Be2 Nbd7 7.f4 Bd6 8.Nf3 0–0 9.0–0 Qc7 10.Qe1 b6 11.Qh4 Bb7 12.Nc3 Rad8 13.d4 cd4 14.Nd4 Nc5 15.Rf3 Be7 16.Rh3 h6 17.Qg3 Kh8 18.Rc1 Rc8 19.Nf3 Qb8 (19...Rfd8 20.Nd4=) ˝–˝. Woelfelschneider,Peter – Wittal,Werner, T8e–09 TSC, 2002.

6.Nf3 a4 7.c4 Be7 8.Be2 0–0 9.0–0 Nbd7 10.d4 dc4 11.Qc2 Nb6 12.Rd1 Qc7 13.Bc4 (13.Nbd2 cd4 14.Bd4 Bd7 15.Nc4 Nc4+=) 13...cd4 14.Rd4 Bd7 15.Rh4 h6 (15...Nc4?? 16.Bf6 (worse is 16.Rc4 Qa5+=) 16...h6 17.Rc4 (17.Qc4 Qc4 18.Rc4 Bf6–+) 17...Qc4 18.Qc4 Bf6 19.Ra2+–) 16.Be5 Qc5 17.Ra2 (17.Nbd2!?=) 17...Rac8 (better is 17...Rfc8 18.Nbd2 Nc4 19.Rc4 Qb5–/+) 18.Bc3? (better is 18.Nbd2!?+=) 18...Nfd5 (better is 18...Nc4 19.Bb4 Ne3 20.Bc5 Nc2 21.Be7 Nd4–+ (21...Bb5?! 22.h3–/+)) 19.Rb2?? (19.Bd5 Nd5 20.Rh5=) 19...Nc3 (worse is 19...Bh4 20.Bd5 Nd5 21.Nh4 Nc3 22.h3–+) 20.Nc3 Nd5 (better is 20...Bh4 21.Rb4 Nc4 22.Na4 Qd5–+) 21.Na4+= Qa3 22.Rd4 (22.Re4 f5 23.Rd4 Bf6–/+) 22...Bf6–+ 23.Rd3? (23.Ra2 Qb4 24.Rb2 Qa5–+ (24...Bd4? 25.Rb4 Nb4 26.Qb3+–)) 23...Qe7 (better is 23...Qa1 24.Rd1 Rc4 25.Ra1 Rc2 26.Rc2 Ba1–+) 24.Rb1–/+ Bb5?? (better is 24...Nb4 25.Rd7 Nc2 26.Re7 Be7–+ (26...Rc4?! 27.Nb6=)) 25.Rb5+= Nb4 26.Qb3 Nd3 27.Qd3 (27.Bd3!? Rc1 28.Bf1+=) 27...Rfd8+= 28.Nd4 e5 29.Nf5? (29.Nb6 Rc4 30.Nc4 ed4 31.e4–/+) 29...Qf8 30.Rd5 b5! (30...b5 31.Qb1 ba4 (31...bc4?! 32.Nc3–+) 32.Rd8 Qd8–+) 0–1. Derbyshire – Murray, corr AUS, 1985. (=1.Nf3 d5 2.b4 e6 3.a3 Nf6 4.e3 a5 5.b5 c5 6.Bb2 a4)

6.Nf3 c4 7.d3 cd3 8.cd3 b6 9.Be2 Nbd7 10.0–0 Bb7 11.Nbd2 Rc8 12.Rc1 Bd6 13.Rc8 Qc8 14.d4 0–0 15.a4 Qb8 16.g3 Rc8 17.Bd3 Rc7 18.Qe2 Qc8 19.Bb1 Bb4 20.Rd1 Bc3 21.Bc3 Rc3 22.Re1 Rc1 23.Rc1 Qc1 24.Kg2 Kf8 25.Ne5 (25.Qd3!?+=) 25...Ne5+= 26.de5 Ne4 (better is 26...Nd7+=) 27.Be4+/– de4 28.Nc4 Qa1?? (better is 28...Bd5 29.Nb6 Bb3+/–) 29.Qd2 (worse is 29.Nb6 Qc1+–) 29...Bd5 30.Nb6 Qe5 (30...Qa2 31.Qa5 Qe2 32.Qb4 Ke8+–) 31.Nd7 (31.Nd7 Ke7 32.Ne5+–) 1–0. Yannick – Matu, playchess.de, 2005.

6.Nf3 Nfd7 7.c4 dc4 8.Bc4 Be7 9.d4 cd4 10.Bd4 0–0 11.Nbd2 b6 12.Qc2 Nc5 13.Rd1 Bb7 14.Qc3 Bf6 15.Bf6 Qf6 16.Qf6 gf6 17.Nd4 Nbd7 18.Be2 Kh8 19.Rg1 Rac8 20.Nc4 Rc7 21.Nd6 Bd5 22.Bf3 Bf3 23.gf3 Ne5 24.Ke2 Rd8 25.Ne4 Ne4 26.fe4 Rc3 27.a4 Rdc8 28.Ra1 Nd7 29.Nc6 Nc5 30.Kf3 Rc4 31.e5 f5 32.Rad1 Na4 33.Rd6 Rg8 34.Rh1 Nc5 35.Nd8 Rf8 36.Rg1 h6 37.Nc6 Ne4 (37...Ne4 38.Rd8 Rd8 39.Nd8 Rc7–+) 0–1. Pech,Jaroslav – Svensson,Jan, corr or02–025, 2002.

6.f4 b6 7.Nf3 Nbd7 8.Nc3 Bd6 9.Be2 0–0 =.

6.f4 b6 7.Nf3 Nbd7 8.Nc3 Bd6 9.Ne2 0–0 10.Ng3 =+.

6.f4 b6 7.Nf3 Nbd7 8.Nc3 Bd6 9.Ne2 Qc7 10.g3 (10.Ng3 A) 10...0–0 11.Be2 Bb7 (11...Rd8 12.0–0 Bb7 13.Ng5 h6; 11...e5 12.fe5 Ne5 13.Be5 Be5) 12.0–0 Rfd8 13.Ng5 h6; B) 10...Bb7 11.Be2 (11.Rb1 0–0 12.Be2 d4 13.0–0 Rad8) 11...0–0 12.0–0 d4 13.c4 Rfd8; C) 10...h5 11.c4 Bb7 (11...h4 12.Ne2 dc4 13.Nc3 e5) 12.cd5 Bd5 13.d3 h4) 10...Bb7 (10...0–0 11.Bg2 Bb7 (11...a4 12.d3 Rd8 13.0–0 Bb7; 11...Rd8 12.0–0 a4 13.d3 Bb7) 12.0–0 a4 13.d3 Rfd8; 10...a4 11.Bg2 (11.Rc1 Bb7 12.Bg2 Ra5 13.c4 dc4) 11...0–0 (11...Bb7 12.0–0 Ra5 13.Nc3 0–0) 12.d3 Bb7 13.0–0 c4) 11.Bg2 0–0 (11...Rd8 12.0–0 0–0 13.d3 Rfe8; 11...a4 12.0–0 Ra5 13.Nc3 0–0; 11...Be7 12.0–0 0–0 13.Rc1 a4; 11...Ra7 12.0–0 0–0 13.d3 Rd8). Ljubojevic – Matanovic, Yugoslavia, 1969.

6.f4 b6 7.Nf3 Nbd7 8.Nc3 Bd6 9.Ne2 Qe7 10.d4 Ng4 11.Qd2 f6 12.h3 Nh6=+ 13.Nc3 Bb7 14.Be2 Nf5 15.0–0 Ng3 16.Rf2 c4 17.Qe1 0–0–0 18.Bc1 g5 19.fg5 fg5 20.h4? h6–/+ 21.hg5?? Rdg8 22.gh6?? Nf6 23.Ne5?? Rh6–+ 24.Rf4 Ne2 25.Ne2 Be5 26.de5 Ng4 27.e4?? Rh4 28.ed5 Qc5–+ 29.Nd4 Rgh8 30.Qh4 Rh4 31.de6 Rh5 32.a4?? Qe7?? 33.Rg4+= Qh7 34.Rf4 Kb8?? 35.Rf8+– Bc8 36.Bg5! Rg5 37.Nc6 Ka8 38.Rc8 Kb7 39.Rb8 Kc7 40.e7 Rg2 41.Kg2 Qc2 42.Kf3 Qe4 (43.Ke3 Qd3 44.Kf4 Qd2 45.Kf5 Qd3 46.Kf6 Qf3 47.Ke6 Qh3 48.Kd5 Qf3 49.Kc4 Qe2 50.Kd4 Qg4 51.Ke3 Qg3 52.Ke4 Qg4 53.Kd3 Qf3 54.Kd2 Qf2 55.Kd1 Qf1 56.Kc2 Qe2 57.Kc3 Qe3 58.Kb2 Qd2 59.Kb3 Qd3 60.Ka2 Qd2 61.Ka3 Qd3 62.Kb2 Qd2 63.Kb1 Qd1 64.Kb2 Qd2=) ˝–˝. Vettenburg – Dezutter, corr Belgium, 1994.

6.f4 Nbd7 7.Nf3 b6 8.Nc3 Bd6 9.Ne2 Qe7 10.c4 Bb7 11.cd5= Bd5 12.Nc3 Bb7 13.Bc4 0–0 14.0–0 Rad8 15.Qe1 Rfe8 16.d3 h6 17.Qh4 e5 18.Rae1 Bf3=+ 19.gf3 ef4 20.ef4 Qf8 21.Re8 Re8 22.Ne4 Be7 23.Qh3 Bd8 24.Kh1 Ne4 25.fe4+/– (25...Nf6 26.e5+/–) 1–0. Frank,Mario Alberto (2360) – Cade,Stephen (2250), IECG, 2001.

6.f4 Nbd7 7.Nf3 Qb6 8.Be2 =.

6.f4 Nbd7 7.Nf3= Qc7 8.a4 (8.Be2 Be7=) 8...Bd6 9.d4 (9.Be2 0–0=) 9...0–0=+ 10.Be2 Ne4 11.0–0 Ndf6 (11...Rd8 12.Nbd2=+) 12.Ne5 b6 13.c3 Bb7=+ 14.Bd3 Rac8 15.Ra2 Qe7 16.Ba1 Rc7 17.g4 Rfc8–/+ 18.g5 Nd7 19.Nc6 Bc6–+ 20.bc6 Rc6 21.Be4 de4 22.d5 ed5 23.Qd5 Bb8 24.c4 Rd6 25.Qf5 b5?? 26.ab5+= Nb6 27.Ra5 Rcd8 28.Qc5+/– Qe6 29.f5 Qc4=+ 30.Bd4 Rd4 31.ed4+/– Qe2 32.Rf2? Qg4 (Better is 32...Qe1 33.Kg2 Qa5–+). Veer – Velker, corr ICCF TT–4–90 SF, 1995.

6.f4 Nbd7 7.Nf3 Bd6 8.Be2 0–0 9.0–0 Qc7 10.Qe1 b6 (10...e5 11.fe5 Ne5 12.b6=) 11.Qh4 Bb7 12.Nc3 e5 (12...Be7 13.Rae1=) 13.fe5 Ne5 14.Ne5 Be5 15.Bd3 (15.d4!? cd4 16.ed4+=). Niess – Plesse, Berlin, 1962.

6.f4 Be7 7.Nf3 =+.

6.c4 b6

7.d4 Bb7 8.dc5 Bc5 9.cd5 Qd5 10.Qd5 Bd5 11.Nc3 Bb7 12.Nf3 Nbd7 13.Be2 0–0 14.0–0 Nd5 15.Nd5 Bd5 16.Rfd1 Nf6 17.Ne5 Rac8 18.Rac1 Rfd8 19.Bc4 Bc4 20.Nc4 Nd5 21.Kf1 f6 22.Bd4 e5 23.Bb2 ˝–˝. Fournier,Frederic (1990) – Cereus (1930), echecsemail.com, 2005.

7.Nf3 Bd6 8.cd5 ed5 9.Be2 =.

7.Nf3 Bb7

8.Qc2 Be7 9.Be2 0–0 10.Ng5 h6 11.Bf6 hg5 12.Bb2 Bf6 Black plans d4 13.h4 (13.0–0 dc4 14.Bc4 Nd7=) 13...Bb2 (better is 13...gh4!? 14.Bf3 Nd7–/+) 14.hg5+= g6 15.Qb2 d4 16.f4 Bg2 17.Rh6 Kg7 18.Kf2 Bb7 19.a4 Rh8 20.ed4 Qd4 21.Qd4 cd4 22.Rh8 Kh8 23.Bf3 Bf3 24.Kf3 Nd7 25.Ke4 Rd8 26.Kd4 Kg7 27.Nc3 Nc5 28.Ke3 f6 (28...Rd3 29.Ke2 Rd4 30.Kf3=) 29.Rg1 (29.d4 Rd4 30.Kd4 Nb3 31.Kd3 Kf7+–) 29...f5?? (better is 29...Rd3 30.Ke2 Rd4=) 30.d4+– Nb3 31.d5 (better is 31.Ne2!? Rh8 32.Kd3+–) 31...ed5+/– 32.Nd5 Re8 33.Kf3 Nd2 34.Kf2 Nc4 35.Rc1 Re4 36.Kg3 Kf7 37.Rh1 Ke6 38.Nc7 Kd6 39.Na6 Nb2 40.Rc1 Rc4 41.Rh1 Rc3 42.Kg2 Ke6 43.Rh6 Kf7 44.Nc7 Na4 45.Nd5 Rc5 46.Rh7 Kf8 47.Nf6 Rb5 48.Rh6 Kf7–/+ 49.Rh7 Kf8 50.Rh6 Rb4 51.Kg3? Nc3–+ 52.Rg6 Ne2 53.Kf3 Nf4 54.Nd7 Ke7 55.Rg7 Ke6 56.Nf8–/+ Ke5 57.Nd7? Ke6 58.Nf8–/+ Kd5 59.Rf7 Ne6 60.Rf5= Kd6 61.Rf6 Rb3 62.Ke4 Rb4 63.Kd3 Rb3 64.Kd2 Rb2 65.Kd1 Rb1 66.Ke2 Rb2 67.Ke3 Rb3 68.Ke2 Rb2 69.Ke3 Rb3 70.Ke2 Rb2 ˝–˝. combijack (1790) – romast (1700), gameknot.com, 2012.

8.Be2=+ dc4 9.Nc3 =.

8.Be2=+ Nbd7 9.Qc2 Bd6 10.d3 Qc7 11.Nbd2 0–0–0 12.Rc1 Kb8 13.Qa4 e5 14.cd5 Nd5 15.Nc4 Rhe8 16.Ng5 N7f6 17.0–0 h6 18.Ne4 Ne4 19.de4 Nf6 20.f3 Nh7 21.Bc3 Rd7 22.Nb6! (22...Qb6 23.Ba5=). Peyrat,Olivier – Tombette,Philippe, FRA Cup corr, 1989.

8.d4 Nbd7

9.Nc3 Rc8 10.Qb3 (10.dc5 Nc5 11.cd5 Nd5 12.Nd5 Bd5=) 10...Bd6 11.Bd3 (better is 11.cd5!? ed5 12.Be2+=) 11...Qc7–/+ 12.Na4 cd4 13.Rc1 Qb8 14.ed4 0–0 15.0–0 dc4 16.Rc4 Bf3 17.Rc8 Rc8 (17...Qc8?! 18.gf3 Qb8 19.h3–/+) 18.Bh7? (better is 18.gf3 Bh2 19.Kg2–+) 18...Kh7 19.Qf3 0–1. Patrinos,Ilias – Mihakis,Nikolaos, Epikinonias op 4th, 2000.

9.Nbd2 cd4 A) 10.Nd4 A1) 10...Rc8 11.Nc6 (11.N2f3 dc4 12.Rc1 c3 13.Rc3 Rc3 14.Bc3 Ba3 15.Bc4 Qc7 16.Qb3) 11...Bc6 12.bc6 Rc6 13.cd5 Nd5 14.Ne4 Qc7 15.Bb5 Rc2 16.Rb1; A2) 10...Qc7 11.Nc6 (11.cd5 Bd5 12.Nc6 Bc5 13.Nf3 0–0 14.Bd3 Bc6 15.bc6 Qc6 16.0–0; 11.Rc1 Bc5 12.Be2 0–0 13.0–0 Rac8 14.cd5 Bd5 15.Bf3 Ne5 16.Bd5; 11.N2f3 Bc5 12.cd5 Bd5 13.Bd3 e5 14.Nf5 e4 15.Ng7 Kf8 16.Nh5) 11...Bc6 12.bc6 Qc6 13.cd5 Qd5 14.Nf3 Bd6 15.Qd5 ed5 16.Bb5; B) 10.ed4 B1) 10...Ne4 11.Rc1 (11.Bd3 Nd2 12.Qd2 Bd6 13.Rc1 0–0 14.cd5 Bd5 15.Rc6 Qe7 16.Qc1; 11.cd5 ed5 12.Bd3 Bd6 13.0–0 0–0 14.Re1 Re8 15.Rc1 Rc8 16.Rc8; 11.Be2 Bd6 12.0–0 0–0 13.cd5 ed5 14.Ne5 Qe7 15.f4 Ndf6 16.Ndf3; 11.h3 Rc8 12.Rc1 Bd6 13.Bd3 Nd2 14.Nd2 Qg5 15.Qg4 Bf4 16.Qg5) 11...Bd6 12.Bd3 Nd2 13.Qd2 0–0 14.cd5 Bd5 15.Rc6 Qe7 16.Qc1; B2) 10...Bd6 11.Bd3 0–0 12.0–0 Ne4 13.Rc1 Rc8 14.Re1 Nd2 15.Nd2 Nf6 16.g3; C) 10.Bd4 C1) 10...Bc5 11.cd5 (11.Bd3 0–0 12.0–0 Rc8 13.Qe2 h6 14.cd5 Bd5 15.Rfc1 Bd4 16.ed4) 11...Bd5 12.Bc4 Bd4 13.Nd4 Ne5 14.Be2 h5 15.0–0 Rc8 16.h3; C2) 10...Be7 11.cd5 (11.Bd3 Nc5 12.Bc2 0–0 13.0–0 Qc7 14.Ne5 g6 15.cd5 Bd5 16.Rc1) 11...Bd5 12.Bc4 0–0 13.0–0 Rc8 14.Bd5 Nd5 15.Rc1 f6 16.Rc6; C3) 10...Qc7 11.Be2 (11.cd5 Bd5 12.Rc1 Qb7 13.Bb2 Be7 14.Bc4 0–0 15.0–0 Rac8 16.Qe2) 11...Bc5 12.cd5 Bd5 13.0–0 0–0 14.Rc1 e5 15.Bb2 Rfd8 16.Qc2; C4) 10...Rc8 11.Bd3 (11.cd5 Bd5 12.Bd3 Nc5 13.Qe2 Be7 14.e4 Bb7 15.0–0 Nd3 16.Qd3) 11...Nc5 12.Bc2 Bd6 13.0–0 0–0 14.Ne5 Nce4 15.Ne4 de4 16.h3.

9.Nbd2 Bd6 10.Bd3 A) 10...0–0 11.0–0 cd4 12.ed4 Rc8 13.Ne5 Be7 14.Qe2 Ne5 15.de5 Nd7 16.cd5; B) 10...Qe7 11.Ne5 (11.0–0 0–0 12.Ne5 Rfc8 13.f4 h5 14.Qe2 h4 15.Nd7 Nd7 16.Qg4; 11.Qe2 0–0 12.0–0 e5 13.de5 Ne5 14.Ne5 Be5 15.Be5 Qe5 16.cd5) 11...cd4 12.ed4 Rc8 13.0–0 0–0 14.Qe2 h5 15.Rfc1 h4 16.h3; C) 10...h6 11.0–0 0–0 12.Ne5 Re8 13.f4 Rc8 14.Rc1 cd4 15.ed4 h5 16.Qe1; D) 10...g6 11.0–0 0–0 12.Ne5 Rc8 13.f4 cd4 14.ed4 dc4 15.Ndc4 Be7 16.Qe2; E) 10...Rc8 11.0–0 cd4 12.ed4 0–0 13.Qe2 Ne4 14.Ne4 de4 15.Be4 Be4 16.Qe4; F) 10...cd4 11.ed4 0–0 12.0–0 Ne4 13.Rc1 Nd2 14.Nd2 Rc8 15.Re1 h6 16.g3.

9.Nbd2 Rc8

10.Rc1 Bd6 11.Be2 (11.Bd3 0–0 12.g3 cd4 13.ed4 Qe7 14.0–0 Ba3 15.Ba3 Qa3 16.Qe2; 11.cd5 ed5 12.dc5 Nc5 13.Be2 0–0 14.0–0 Qe7 15.Nd4 Qd7 16.Nc6; 11.Rc2 0–0 12.Bd3 cd4 13.ed4 Qe7 14.0–0 Ba3 15.c5 Bb2 16.c6) 11...0–0 12.0–0 Qe7 13.Qb3 (13.cd5 ed5 14.dc5 Nc5 15.Nd4 g6 16.g3) 13...Rfe8 (13...cd4 14.Nd4 Nc5 15.Qc2 Nce4 16.Ne4) 14.Ne5 cd4 15.ed4 dc4 (15...Ne4 16.Ne4) 16.Bc4 (16.Ndc4=) 16...Nd5 17.Ne4 N7f6 18.Nd6 Qd6 19.Bd3 (19.Qg3!?=) 19...Nf4+= 20.f3 Bd5 21.Qd1 Nd3 22.Qd3 a4 23.Nc4 Qb8 24.Nd2 Qb7 25.Rc3 Rc3 26.Bc3 Rc8 27.Rc1 h6 28.Kf2 Rc7 29.Bb2? (better is 29.Kg1+=) 29...Rc1–+ 30.Bc1 Qc7 31.Bb2 Qh2 32.Qf1 (32.Qc2 Qh4 33.Kf1 Nh5 34.Qc8 Kh7 35.Qc2 f5–+) 32...Nh5 33.Qg1 (33.Qe2–+) 33...Qg3 34.Kf1 Nf4 35.Qf2 (35.Bc1–+) 35...Qf2 36.Kf2 Nd3 37.Ke2 Nb2 38.Ne4 (38.Ke1 Bc4–+) 38...Bc4 (better is 38...Be4!? 39.fe4 Nc4 40.Kd3 Na3 41.Kc3–+) 39.Kd2 Bb5 40.Nd6 (40.Kc3 Nd3 41.Kd2 Nf4–+) 40...Nc4 41.Nc4 Bc4 42.f4 h5 43.g4 (43.Kc3 Bd5 44.g3 Kh7–+) 43...f6 (better is 43...hg4 44.Ke3 b5 45.f5–+) 44.Kc3 (44.gh5 Kh7 45.Kc3 b5–+) 44...b5 (44...h4 45.Kc4 h3 46.Kb5–+) 45.Kd2 (45.gh5 Kh7 46.Kb4 Kh6–+) 45...Kf7 (better is 45...h4 46.Ke3 b4 47.d5 ba3 48.d6–+) 46.Kc3 Kg6 (46...Kg6 47.gh5 Kh5–+) 0–1. Bartle,Georg (1790) – Raabe,Joachim (1970), Halle GER, 2011.

10.Bd3 cd4 11.ed4 Bd6 12.0–0 0–0 13.Qe2 Ne4 14.Ne4 de4 15.Be4 Be4 16.Qe4.

10.Bd3 Bd6 11.0–0 0–0 12.Ne5 Re8 13.Qe2 Qc7 14.f4 Ne4 15.cd5 ed5 16.Ne4 de4 17.Bc4 Be5? (better is 17...Rf8!? 18.Rac1 Rcd8+/–) 18.fe5+– Re7 19.Qh5 g6? (better is 19...Rf8 20.Rac1 Qd8+–) 20.Qh4 Nf8 (20...Rce8 21.Rf7! Rf7 22.Bf7 Kf7 23.Qh7 Ke6 24.d5 Bd5 25.Rf1 Qe5 26.Qg6 Ke7 27.Be5 Ne5 28.Qh5 Nf3 29.gf3 Rg8 30.Kh1+–) 21.d5 Re5 (21...Bd5 22.Bd5 Ne6+–) 22.d6 Qd6 23.Bf7 Kh8 24.Rad1 Qc7 (24...Nd7 25.Rd6 Rce8 26.Rd7 g5 27.Be8 gh4 28.Rf8) 25.Qf6 1–0. b4_player – idyll, casual, 2013.

10.Bd3 Bd6 11.0–0 cd4 12.ed4 0–0 13.Ne5 Be7 14.f4 Ne5 15.fe5 Ne4 16.cd5.

10.Bd3 Bd6 11.Qe2 cd4 12.ed4 0–0 13.0–0 h6 14.Rfc1 Qe7 15.Ne5 Rfe8 16.g3.

10.Bd3 h6 11.Rc1 (11.0–0 cd4 12.ed4 Be7 13.Qe2 0–0 14.Rac1 Rc7 15.Ne5 Bd6 16.g3; 11.cd5 Bd5 12.Qe2 cd4 13.Bd4 Bc5 14.0–0 0–0 15.Rfc1 Qe7 16.Bb2; 11.Qe2 cd4 12.ed4 Bd6 13.0–0 0–0 14.Rfc1 Qe7 15.Ne5 Rc7 16.g3) 11...cd4 12.ed4 Bd6 13.0–0 0–0 14.Ne5 Qe7 15.Qf3 Rfd8 16.Qe3.

7.Nf3 Nbd7

8.Qc2 Bb7 9.Be2 Bd6 10.Nc3 0–0 11.h4 (11.cd5 Nd5 12.Nd5 Bd5=) 11...h5 (11...dc4!? 12.Bc4 Ne5 13.Ne5 Be5+=) 12.cd5= ed5 13.Ng5 g6 14.0–0–0 (14.0–0!?=) 14...Qe7+= 15.f4 d4 16.Bc4 Kg7 (16...dc3 17.Qg6 Kh8 18.Qh6 Kg8 19.Bc3+–; 16...de3?? 17.Qg6 Kh8 18.Bf7 ed2 19.Kc2 Rf7 20.Nf7 Qf7 21.Qf7+–) 17.ed4 cd4 (17...Bg2?? 18.Rhe1 cd4 19.Re7 Be7 20.Ne2+–; 17...Bf4 18.Rde1 Qd6 19.dc5 Nc5 20.Nce4 Nce4 21.Ne4 Be4 22.Re4=) 18.Rhe1 Qd8?? (better is 18...dc3!? 19.Re7 cb2 20.Kb2 Be7–+) 19.Nce4?? (19.Bf7 Rf7 20.Ne6 Kh6 21.Nd8 Rd8+/–) 19...Bc5?? (better is 19...Ne4 20.Ne4 Nf6 21.Nd6 Qd6+=) 20.Bf7+– Rf7 1–0. combijack (1780) – arpad (1695), gameknot.com, 2008.

8.Nc3 Bd6 9.d3 Bb7 (9...0–0 10.Be2=) 10.Be2 dc4 11.dc4 Qc7 12.h3 (12.0–0 Bf3 13.Bf3 Bh2 14.Kh1 Rd8=+) 12...Ne5 (12...0–0 13.0–0=+) 13.0–0 (13.Ne5 Be5 14.Bf3 Rd8=+) 13...Rd8=+ 14.Qc2 (14.Nd2 0–0=+) 14...Nf3–/+ 15.Bf3 Bf3 16.gf3 0–0 17.Ne4 Ne4 18.fe4 f6 (18...Rd7 19.Rfd1=+) 19.f4 Qf7 20.Kh1 (20.Rad1 Qh5 21.Kh2 Qg6=+) 20...Qh5 21.Qg2 Qh6 22.Rg1 e5 23.f5 Be7 24.Qf3 Rd2 25.Rg2 Rg2 26.Kg2 Rd8 27.Qe2 Qh4–/+ 28.Qg4?? Rd2–+ 29.Kh1 Qf2 30.Qg1 Qf3 (31.Qg2 Qg2#) 0–1. Rush,Bradley – Williams,Collins, corr IECG Cat–C, 1995.

8.Be2 Bd6 9.Nc3 Bb7 10.d4 0–0 11.0–0 Rc8 12.Nd2 (12.cd5!? Nd5 13.Rc1+=) 12...cd4–/+ 13.ed4 dc4 (13...Bf4 14.Bf3–/+) 14.Nc4+= Bb8 15.f4 Ne4 16.Ne4 Be4 17.Rc1 Nf6 18.Bd3 Bd3 19.Qd3 Nd5 20.Qe4 (20.Ne5 Qd6=) 20...Qd7 21.a4 f5 22.Ne5? (better is 22.Qe1!?+=) 22...Qb5–+ 23.ab5 fe4 24.Rc8 Rc8 25.Nc6 Bd6 (25...Bf4 26.Rf4 Nf4 27.Ne7 Kf8 28.Nc8+–) 26.g4 (better is 26.g3–+) 26...Rf8 (26...Bf4 27.Rf4 Nf4 28.Ne7 Kf8 29.Nc8+–; 26...Nf4?! 27.Rf4 Rc6 28.bc6 Bf4 29.Bc1–+) 27.f5 ef5 28.gf5 Ne3 (28...g6 29.f6–+) 29.Re1 Nc4 30.Bc1 Rf5 31.Re4 Rb5 32.d5 Rc5 33.Nd8? (33.Bf4 g5 34.Bd6 Nd6 35.Re2–+) 33...Rd5 34.Rc4 Bc5 35.Rc5 bc5 (35...Rc5?! 36.Be3 Rc4 37.Nb7–+; 35...Rd8?! 36.Rc7=) 0–1. Dragojevic,Mi (2155) – Zecevic,Dea (2215), Zagreb Open B, 2011.

8.Be2 Bb7

9.0–0 Bd6

10.a4 A) 10...h6 11.Nc3 (11.Qc2 0–0 12.cd5 ed5 13.Nc3 Re8 14.Rfe1 Qc7 15.h3 Ne5 16.Qf5; 11.cd5 ed5 12.Nc3 0–0 13.h3 Re8 14.Qc2 Rc8 15.Qd3 Nf8 16.Rae1; 11.h3 0–0 12.cd5 ed5 13.Nc3 Re8 14.Qb3 Rc8 15.Rae1 Qc7 16.Rc1; 11.d3 dc4 12.Nbd2 cd3 13.Bd3 0–0 14.Nc4 Bc7 15.Qc2 Qe7 16.e4; 11.Re1 0–0 12.h3 e5 13.cd5 e4 14.Nh4 Nd5 15.Nf5 Be5 16.Nc3; 11.g3 0–0 12.Nc3 Re8 13.Rc1 Qc7 14.cd5 ed5 15.Nh4 g6 16.f4; 11.Qb3 0–0 12.Nc3 Qc7 13.g3 Rfe8 14.cd5 ed5 15.Rfe1 Nf8 16.Nb1; 11.d4 0–0 12.cd5 ed5 13.Nc3 Rc8 14.g3 Ne4 15.dc5 Ndc5 16.Rc1) 11...0–0 12.cd5 ed5 13.Qc2 Qc7 14.g3 Rae8 15.d4 Re6 16.dc5; B) 10...Qc7 11.Nc3 (11.h3 0–0 12.cd5 ed5 13.Nc3 Ne5 14.Ne5 Be5 15.f4 Bd6 16.Bf3; 11.cd5 ed5 12.h3 0–0 13.Qc2 g6 14.Nc3 Rfe8 15.d4 c4 16.Rfd1; 11.g3 0–0 12.Nc3 dc4 13.Bc4 h6 14.Qe2 Rfd8 15.Rac1 Ng4 16.Ba2; 11.d4 0–0 12.cd5 Nd5 13.Nbd2 cd4 14.Bd4 Nc5 15.Rc1 Rac8 16.Nb3) 11...0–0 12.h3 g6 13.Re1 Rfd8 14.cd5 ed5 15.d4 c4 16.Qc2; C) 10...Qe7 11.Nc3 (11.h3 0–0 12.Na3 h6 13.Qc2 Rae8 14.d3 Rc8 15.Rfd1 Rfe8 16.Qb3; 11.cd5 ed5 12.Nc3 0–0 13.g3 Qe6 14.Qc2 h6 15.d4 c4 16.Nh4; 11.g3 0–0 12.cd5 ed5 13.Nc3 Ne5 14.Ne5 Qe5 15.d4 cd4 16.Nb1; 11.Na3 0–0 12.Qc2 h6 13.h3 Rac8 14.d3 Rfe8 15.Rfd1 Qd8 16.Bc3; 11.Qc2 0–0 12.Na3 h6 13.h3 Ra7 14.d3 Raa8 15.Qb3 Rfe8 16.Rfd1; 11.Re1 0–0 12.cd5 ed5 13.Nc3 Rfe8 14.Qb1 Ne4 15.h3 Ndf6 16.Qc2; 11.d3 dc4 12.dc4 0–0 13.Nc3 h6 14.Qc2 Rfd8 15.Rfd1 Ne5 16.Nd2; 11.Qb3 0–0 12.Na3 h6 13.Qc2 Qd8 14.g3 Qe7 15.Rfe1 Rae8 16.Red1; 11.d4 0–0 12.Nc3 Rac8 13.cd5 Nd5 14.Rc1 Nb4 15.Qd2 Rfd8 16.e4) 11...0–0 12.h3 h6 13.cd5 ed5 14.d4 c4 15.Qc2 Rac8 16.Nd2; D) 10...Rc8 11.Qc2 (11.cd5 ed5 12.h4 0–0 13.Qc2 Qe7 14.Re1 Rfe8 15.g3 Qe4 16.d3; 11.Nc3 0–0 12.g3 Qe7 13.cd5 ed5 14.Re1 h6 15.Qc2 Qe6 16.Bf1; 11.h4 0–0 12.Nc3 dc4 13.Bc4 h6 14.d3 Qe7 15.Qe2 Bf3 16.Qf3; 11.Re1 0–0 12.Nc3 Re8 13.Bd3 dc4 14.Bc4 Ng4 15.Be2 c4 16.h3; 11.d3 dc4 12.Na3 cd3 13.Qd3 Bf3 14.gf3 Be5 15.Be5 Ne5 16.Qc2; 11.h3 0–0 12.Nc3 dc4 13.Bc4 h6 14.Be2 c4 15.Nd4 Ne5 16.Qc2; 11.g3 0–0 12.Nc3 Qe7 13.Qb3 g6 14.Rfe1 Rfe8 15.Rac1 Red8 16.Rc2; 11.Na3 0–0 12.Qc2 Re8 13.d3 h6 14.Bc3 Qc7 15.h3 Ne5 16.Rfe1) 11...0–0 12.cd5 ed5 13.Re1 Re8 14.Na3 Qe7 15.h3 Ne4 16.d3; E) 10...g6 11.d3 (11.Nc3 0–0 12.Qb3 Qe7 13.Rfe1 Rfd8 14.cd5 ed5 15.Ng5 c4 16.Qc2; 11.cd5 ed5 12.Nc3 0–0 13.Qc2 Re8 14.Qd3 Qe7 15.Rfe1 h6 16.Qc2; 11.Qc2 0–0 12.cd5 ed5 13.Nc3 Re8 14.h3 Qc7 15.d4 c4 16.Rfd1; 11.Re1 0–0 12.Nc3 dc4 13.Bc4 Ng4 14.Be2 c4 15.Qc2 Bf3 16.Bf3; 11.g3 0–0 12.Nc3 Qe7 13.Qb3 Rfe8 14.Rfe1 Rad8 15.cd5 ed5 16.Qc2; 11.Qb3 0–0 12.Nc3 Qe7 13.h3 Rfd8 14.Rac1 Rac8 15.Rfe1 Ne5 16.Ne5; 11.Qc1 0–0 12.cd5 ed5 13.Nc3 Rc8 14.Qd1 Qe7 15.g3 Ne5 16.Rc1; 11.h3 0–0 12.Nc3 Qc7 13.Re1 Rfd8 14.cd5 ed5 15.Qc2 Re8 16.Rac1; 11.Bd3 0–0 12.cd5 ed5 13.Nc3 Re8 14.Be2 Qe7 15.d4 c4 16.Qc2; 11.d4 0–0 12.Nc3 Rc8 13.cd5 ed5 14.dc5 Nc5 15.g3 Re8 16.Rc1; 11.Na3 0–0 12.Qc2 Qc7 13.h3 Rfe8 14.Rab1 Rad8 15.Rbd1 Rc8 16.d3) 11...dc4 12.Na3 cd3 13.Qd3 Bc7 14.Nc4 0–0 15.Qc3 Re8 16.Rfd1; F) 10...0–0 11.h3 (11.cd5 ed5 12.Nc3 h6 13.Qc2 Qc7 14.g3 Rfe8 15.d4 c4 16.Nh4; 11.Nc3 dc4 12.Bc4 Ng4 13.Be2 c4 14.g3 Nde5 15.Nd4 h5 16.h3; 11.g3 h6 12.Nc3 Re8 13.Qb3 Qe7 14.Rae1 Rac8 15.Rc1 dc4 16.Qc4; 11.Qc2 dc4 12.Na3 Be4 13.Qc1 Ng4 14.Nc4 Qc7 15.h3 Nge5 16.Ng5) 11...e5 12.cd5 e4 13.Nh4 Nd5 14.Nf5 Be5 15.Nc3 Nc3 16.dc3.

10.Nc3 0–0 11.cd5 (11.h3 h6 12.Rc1 Qc7 13.cd5 ed5 14.Qc2 Rfe8 15.a4 Rad8 16.Rfe1; 11.Qa4 Qc7 12.g3 Rfe8 13.Qb3 h6 14.a4 Rad8 15.Ra2 Qb8 16.cd5; 11.g3 Qc7 12.Qa4 Rfe8 13.Rac1 Rad8 14.Rfd1 d4 15.ed4 Bf3 16.Bf3; 11.Qb3 h6 12.a4 Qe7 13.cd5 ed5 14.Nh4 Qe6 15.Nf3 Ne5 16.Ne5; 11.a4 dc4 12.Bc4 Ng4 13.Be2 c4 14.h3 Nge5 15.Ne5 Ne5 16.f4) 11...ed5 12.a4 Qe7 13.Re1 Rfe8 14.Qb1 g6 15.Qd3 h6 16.h3.

10.Nc3 dc4 11.h3 (11.Bc4 0–0 12.h3 Qc7 13.a4 h6 14.Qc2 Ra7 15.Be2 Rd8 16.d3; 11.g3 0–0 12.Bc4 Ng4 13.Be2 Qe7 14.Qc2 f5 15.h3 Ngf6 16.Qb3) 11...0–0 12.Bc4 Qc7 13.Re1 Rfd8 14.Na4 Bf3 15.Qf3 Bh2 16.Kh1.

10.Nc3 Qc7 11.Qb3 (11.h3 0–0 12.cd5 ed5 13.a4 Rae8 14.d4 c4 15.Qc2 g6 16.Rfd1; 11.a4 0–0 12.g3 dc4 13.Bc4 h6 14.d3 Rfd8 15.Bb3 Rac8 16.Rc1; 11.cd5 ed5 12.Qc2 0–0 13.h3 Rfe8 14.a4 g6 15.d4 c4 16.Ng5; 11.g3 0–0 12.Re1 dc4 13.Bc4 h6 14.a4 Bf3 15.Qf3 Ne5 16.Qe2; 11.Rc1 0–0 12.cd5 ed5 13.Qc2 Rfe8 14.h3 g6 15.Na4 Rab8 16.Rfe1; 11.Qa4 0–0 12.cd5 ed5 13.Qh4 Rfe8 14.Rac1 h6 15.Qh3 Nf8 16.Qf5; 11.Re1 0–0 12.cd5 ed5 13.h3 Rfe8 14.a4 Ne5 15.d4 Nf3 16.Bf3; 11.Rb1 0–0 12.g3 Rfe8 13.Qb3 h6 14.a4 Rad8 15.Rfd1 Ne5 16.Ne5) 11...0–0 12.g3 Rfe8 13.a4 h6 14.Rfe1 Rad8 15.Ra2 Ne5 16.Ne5.

10.Nc3 Qc8 11.d4 (11.Rc1 0–0 12.d4 dc4 13.dc5 Bc5 14.Na4 Rd8 15.Bc4 Qb8 16.g3; 11.cd5 ed5 12.Qc2 0–0 13.a4 Re8 14.Rfe1 Qc7 15.h3 g6 16.Rac1; 11.g3 0–0 12.a4 Qc7 13.cd5 ed5 14.Qc2 Rfe8 15.d4 c4 16.Rfe1; 11.Qc2 0–0 12.cd5 ed5 13.a4 Re8 14.d4 c4 15.Ba3 Bb4 16.Bb2; 11.a4 0–0 12.d4 Qc7 13.cd5 Nd5 14.Nd5 Bd5 15.Rc1 Rfd8 16.Bd3; 11.h3 0–0 12.Qa4 Qc7 13.cd5 ed5 14.Qh4 h6 15.a4 Rfe8 16.d4 ; 11.Re1 0–0 12.cd5 ed5 13.Qc2 Re8 14.d4 c4 15.a4 Qc7 16.g3) 11...0–0 12.cd5 Nd5 13.Rc1 Nc3 14.Rc3 Nf6 15.dc5 Bc5 16.Rc4.

10.Nc3 Rc8 11.Bd3 (11.h3 0–0 12.cd5 ed5 13.a4 Re8 14.Re1 Ne5 15.Ne5 Be5 16.d4; 11.cd5 ed5 12.Qc2 0–0 13.Qd3 Re8 14.Rfe1 Nf8 15.Na4 Ne4 16.Qc2; 11.Qc2 dc4 12.Bc4 0–0 13.a4 Qc7 14.h3 h6 15.Be2 Rcd8 16.Kh1; 11.a4 0–0 12.g3 dc4 13.Bc4 Qe7 14.h3 h6 15.Qe2 Rfd8 16.Rac1; 11.g3 0–0 12.cd5 ed5 13.a4 Re8 14.Rc1 h6 15.d4 c4 16.Nh4 ; 11.Re1 0–0 12.cd5 ed5 13.a4 Re8 14.Rc1 Qe7 15.Qb3 h6 16.g3; 11.Rb1 0–0 12.g3 dc4 13.Bc4 Ng4 14.Be2 c4 15.Qc2 Ndf6 16.Ng5; 11.d3 0–0 12.Qc2 h6 13.h3 Qc7 14.Rad1 Rcd8 15.cd5 ed5 16.d4; 11.Qa4 0–0 12.cd5 ed5 13.Qh4 Ne4 14.d3 Nef6 15.a4 Qe7 16.Qh3; 11.Qb3 0–0 12.a4 Qe7 13.g3 g6 14.Rfe1 Rfd8 15.cd5 ed5 16.Qc2) 11...0–0 12.h3 Re8 13.Qe2 Qc7 14.a4 h6 15.Rfd1 Ra8 16.Rab1.

10.Nc3 g6 11.d4 (11.Qa4 0–0 12.cd5 ed5 13.Qh4 h5 14.Rac1 Ng4 15.Qd8 Rad8 16.Na4; 11.cd5 ed5 12.Qa4 0–0 13.Qh4 h5 14.Rac1 Ne4 15.Qd8 Rad8 16.d3; 11.Qc2 dc4 12.Ng5 Ne5 13.f4 Nd3 14.Nce4 Nb2 15.Nd6 Qd6 16.Qb2; 11.h3 0–0 12.Rc1 Qe7 13.Qa4 Rfe8 14.d3 Ne5 15.Ne5 Be5 16.f4; 11.Ng5 h6 12.Nf3 0–0 13.h3 Qe7 14.a4 Rac8 15.Qb3 Rfd8 16.Rac1) 11...0–0 12.cd5 ed5 13.dc5 Nc5 14.Rc1 Rc8 15.g3 Re8 16.Re1.

10.Nc3 h6 11.cd5 (11.a4 0–0 12.cd5 ed5 13.Qc2 Re8 14.Rac1 Qc7 15.h3 Rad8 16.Rfe1; 11.h3 0–0 12.Rc1 Qe7 13.a4 Rfe8 14.Re1 Rac8 15.Qc2 Ne5 16.Ne5) 11...ed5 12.Nh4 0–0 13.Nf5 Ne5 14.f4 Nc4 15.Bc4 dc4 16.e4.

10.d3 dc4 11.dc4 (11.Nbd2 cd3 12.Bd3 0–0 13.Nc4 Bc7 14.Qc2 Qb8 15.e4 Ng4 16.h3) 11...Qc7 12.Nbd2 0–0 13.Qc2 Rfe8 14.Rfd1 h6 15.h3 Red8 16.Qc3.

10.d3 Qc7 11.h3 (11.Nbd2 0–0 12.Qc2 h6 13.h3 Rfe8 14.Rac1 Rad8 15.Bc3 e5 16.cd5; 11.Qc2 dc4 12.Qc4 Ne5 13.Ne5 Be5 14.Be5 Qe5 15.Nd2 h5 16.Bf3; 11.Qa4 0–0 12.Nbd2 Ne5 13.g3 h6 14.Rac1 Ned7 15.cd5 ed5 16.Nd4; 11.Qb3 a4 12.Qc2 dc4 13.Qc4 0–0 14.Nbd2 h6 15.Qh4 Ra5 16.d4) 11...dc4 12.dc4 0–0–0 (12...Rd8 13.Qc2 Ne5 14.Nbd2 0–0 15.Rfd1 h6 16.Qc3) 13.Nbd2 h6 (13...Rhg8 14.Qc2 g5 15.Rad1 h5 16.h4) 14.Qc2 Rhg8 (14...Ne5 15.Rfd1 Kb8 16.a4) 15.Rfd1 (15.Bc3 g5 16.Kh1) 15...g5 16.Ne1 (16.Rab1=) 16...h5 17.Bf3 (17.Nd3!?=) 17...Bf3+= 18.Ndf3 g4 19.hg4 Rg4 (19...hg4 20.Nd2+=) 20.Qe2 (20.Rd3 h4=) 20...Rdg8 (20...h4 21.Rd3+=) 21.Rd3= h4 22.Rad1 Ne4 23.Rd6?? (23.Kf1!?=) 23...Nd6–/+ 24.Ne5 Re4 (24...Rg2 25.Ng2 h3 26.Nd7 Qd7+=) 25.Nd7–+ Qd7?? (25...Kd7 26.f3 Kc8 27.fe4 Ne4+/–) 26.Qd3= Re8 (26...Rd8!? 27.Bf6 Nb7 28.Bd8 A) 28...Qd8?? 29.Qb1 (29.Qe4?! Qd1 30.Kf1 Qc1=) 29...Rc4 30.Rd8 Nd8 31.Qd1+–; B) 28...Qd3 29.Nd3 Nd8=) 27.Bf6 ˝–˝. Holz auf der Heide,Gerhard (1850) – Wolter,Guenter (1855), Halle GER, 2011.

10.cd5 ed5 11.Nc3 (11.Qc2 0–0 12.Nc3 h6 13.Qf5 Re8 14.Rac1 Qc7 15.d4 c4 16.h3; 11.a4 0–0 12.Nc3 h6 13.Qc2 Re8 14.h3 Rc8 15.Qd3 Qc7 16.Rae1; 11.h3 0–0 12.Nc3 Re8 13.Qc2 Ne5 14.Ne5 Be5 15.Bf3 Qd7 16.Na4; 11.Qa4 0–0 12.Nc3 Qc7 13.h3 h6 14.Qc2 Rfe8 15.a4 Rac8 16.d4; 11.Re1 0–0 12.Nc3 Qc7 13.h3 Rfe8 14.Qc2 Ne5 15.Ne5 Be5 16.f4; 11.Qb3 0–0 12.Nc3 Qc7 13.g3 h6 14.a4 Rfe8 15.Rac1 Ne5 16.Ne5; 11.g3 0–0 12.Nc3 Re8 13.Qb3 h6 14.a4 Qe7 15.Qc2 Qe6 16.d4; 11.d4 0–0 12.dc5 Nc5 13.Nc3 Rc8 14.Rc1 Re8 15.g3 h6 16.Nd4; 11.Ra2 0–0 12.Nc3 Qe7 13.h3 d4 14.ed4 cd4 15.Na4 Rae8 16.Nd4) 11...0–0 12.Qc2 Rc8 13.Qf5 Re8 14.a4 g6 15.Qd3 Nf8 16.Rfe1.

10.h3 A) 10...0–0 11.Nc3 (11.a4 h6 12.cd5 ed5 13.Nc3 Re8 14.Rc1 Ne5 15.Ne5 Be5 16.f4; 11.cd5 ed5 12.Nc3 Re8 13.Rc1 h6 14.a4 Ne5 15.Ne5 Be5 16.f4; 11.Ra2 e5 12.d3 Qc7 13.Nbd2 e4 14.de4 de4 15.Nh4 g6 16.f4) 11...h6 12.a4 dc4 13.Bc4 Qc7 14.Qc2 Rfd8 15.Be2 Rac8 16.d3; B) 10...dc4 11.a4 0–0 12.Na3 c3 13.Bc3 Ne4 14.Bb2 Be7 15.Qc2 Bf6 16.Nc4; C) 10...Qe7 11.d3 (11.a4 0–0 12.Nc3 h6 13.Bd3 Rac8 14.Qe2 dc4 15.Bc4 Rfd8 16.Bb3; 11.Nc3 0–0 12.a4 h6 13.Bd3 dc4 14.Bc4 Rad8 15.Qe2 Rfe8 16.Rad1; 11.cd5 ed5 12.Nc3 0–0 13.Qa4 h6 14.Qh4 Qe6 15.Bd3 Ne4 16.Bc2; 11.Qc2 0–0 12.cd5 ed5 13.Re1 h6 14.Nc3 Qe6 15.Bd3 Ne5 16.Ne5) 11...dc4 12.dc4 0–0 13.Nc3 h6 14.Qc2 Rfe8 15.Rad1 Rad8 16.Nd2; D) 10...Qc7 11.d4 (11.a4 0–0 12.Nc3 dc4 13.Bc4 Rac8 14.Qe2 h6 15.Rfc1 Rfd8 16.Rab1; 11.cd5 ed5 12.Nc3 0–0 13.Qc2 Rae8 14.d4 c4 15.a4 g6 16.Rfd1; 11.Nc3 dc4 12.Bc4 0–0 13.a4 Rac8 14.Be2 c4 15.Qc2 Ne5 16.Ne5; 11.Re1 dc4 12.Bc4 0–0 13.Nc3 Rfd8 14.Na4 Bf3 15.Qf3 Bh2 16.Kh1) 11...cd4 12.Qd4 e5 13.Qh4 e4 14.Nd4 h6 15.f4 ef3 16.Nf3; E) 10...g6 11.Nc3 (11.a4 0–0 12.Nc3 Qc7 13.cd5 ed5 14.Qc2 Rfe8 15.d4 c4 16.Rfd1; 11.cd5 ed5 12.a4 0–0 13.Nc3 Re8 14.Qc2 Qc7 15.d4 c4 16.Rfd1; 11.Re1 0–0 12.cd5 ed5 13.Nc3 Re8 14.Qa4 c4 15.Nd4 Nc5 16.Qc2; 11.Qa4 0–0 12.cd5 ed5 13.Nc3 Re8 14.Rac1 Ne5 15.Rfe1 Qe7 16.Qh4; 11.Qc2 Qc7 12.Nc3 0–0 13.Ng5 Rfe8 14.f4 h6 15.Nf3 d4 16.Na4; 11.Qb3 0–0 12.cd5 ed5 13.Nc3 Re8 14.a4 Qc7 15.Rfe1 Nf8 16.Qc2; 11.Qc1 Rc8 12.d3 0–0 13.Nbd2 Re8 14.Bc3 e5 15.cd5 Nd5 16.Bb2; 11.d4 0–0 12.Nc3 Rc8 13.cd5 Nd5 14.Rc1 Qe7 15.Nd5 Bd5 16.Bc4; 11.d3 dc4 12.dc4 Qc7 13.Nc3 0–0 14.Qc2 Rfe8 15.Rfd1 Red8 16.Ng5) 11...0–0 12.d3 Qc7 13.Qc2 Rfe8 14.Rfd1 Ne5 15.Na4 Nf3 16.Bf3; F) 10...Rc8 11.d3 (11.Nc3 0–0 12.a4 dc4 13.Bc4 Qc7 14.Re1 h6 15.Qe2 Bf3 16.Qf3; 11.a4 0–0 12.Nc3 dc4 13.Bc4 h6 14.Qc2 Qc7 15.Be2 Rcd8 16.d3; 11.Re1 0–0 12.Nc3 dc4 13.Bc4 Ne5 14.Ne5 Be5 15.d3 g5 16.Qc2; 11.Bd3 dc4 12.Bc4 0–0 13.Nc3 Qc7 14.Na4 Rcd8 15.Rb1 h6 16.Re1; 11.cd5 ed5 12.Nc3 0–0 13.Qa4 h6 14.Qh4 Re8 15.Rfe1 c4 16.a4) 11...dc4 12.dc4 Qc7 13.Nbd2 0–0 14.Qc2 h6 15.Qc3 Rcd8 16.Rfd1; G) 10...h6 11.cd5 (11.a4 0–0 12.cd5 ed5 13.Nc3 Re8 14.Qb3 Rc8 15.Rac1 Qe7 16.Rfe1; 11.Qc2 0–0 12.cd5 ed5 13.Nc3 Re8 14.Rae1 Qe7 15.Nh4 g6 16.f4; 11.Qb3 Qe7 12.Nc3 0–0 13.cd5 ed5 14.Qc2 d4 15.Na4 Rfc8 16.Rfe1; 11.Nc3 0–0 12.cd5 ed5 13.Qc2 Re8 14.Rae1 Qc7 15.a4 Rac8 16.Qd3; 11.Qa4 0–0 12.Nc3 Re8 13.Rac1 Qc7 14.cd5 ed5 15.Qc2 Ne5 16.Na4; 11.d4 0–0 12.Nc3 Rc8 13.cd5 ed5 14.Rc1 c4 15.Qc2 g6 16.a4; 11.Bd3 0–0 12.Nc3 dc4 13.Bc4 Qc7 14.Kh1 Rfd8 15.Rc1 Ne4 16.Ne4; 11.Qc1 0–0 12.cd5 ed5 13.Nc3 Qe7 14.Ra2 d4 15.Na4 Qe4 16.Bd1; 11.Ra2 0–0 12.Nc3 dc4 13.Bc4 Qc7 14.a4 Rfd8 15.Kh1 Be7 16.Be2; 11.g3 0–0 12.Nc3 Ne5 13.cd5 Nf3 14.Bf3 ed5 15.Na4 Bc7 16.d3) 11...ed5 12.Nc3 0–0 13.a4 Re8 14.Qc2 Rc8 15.Qd3 Qc7 16.Rae1.

9.0–0 g6

10.Qa4 Bd6 11.cd5 (11.Nc3 0–0 12.cd5 ed5 13.Qh4 h5 14.Rac1 Re8 15.h3 Ne4 16.Qd8; 11.d3 0–0 12.Nbd2 Re8 13.h3 Qc7 14.Qc2 Rab8 15.Qc3 a4 16.Qc2; 11.g3 0–0 12.d3 Qc7 13.Nbd2 Rfe8 14.Qc2 Rad8 15.Bc3 Kg7 16.a4; 11.Re1 0–0 12.Nc3 dc4 13.Qc4 Bc7 14.d4 cd4 15.Qd4 Qe7 16.Qh4; 11.Ng5 h6 12.Nf3 dc4 13.Qc4 Qc7 14.Nc3 g5 15.h3 Ne5 16.Ne5; 11.Qc2 0–0 12.cd5 ed5 13.Nc3 Re8 14.h3 Rc8 15.Rfe1 d4 16.Na4; 11.Qb3 0–0 12.Nc3 Qe7 13.a4 Rad8 14.cd5 ed5 15.g3 Rfe8 16.Rae1; 11.Rd1 dc4 12.Nc3 0–0 13.Qc4 Bf3 14.gf3 Ne5 15.Qh4 c4 16.Qd4; 11.h3 0–0 12.d3 Qc7 13.Nbd2 Rfe8 14.Qc2 Rab8 15.a4 Rbd8 16.Qc3) 11...ed5 12.Qh4 0–0 13.Nc3 h5 14.Rac1 Ng4 15.Qd8 Rad8 16.Na4.

10.Nc3 Bd6 11.d4 (11.Qc2 Qe7 12.Qa4 0–0 13.cd5 ed5 14.Qh4 Rae8 15.Rac1 h5 16.h3; 11.Ng5 h6 12.Nf3 0–0 13.cd5 ed5 14.Qa4 Re8 15.h3 c4 16.Nd4; 11.Qa4 0–0 12.cd5 ed5 13.Qh4 h5 14.d4 c4 15.h3 Re8 16.Qg5; 11.cd5 ed5 12.Qa4 0–0 13.Qh4 h5 14.Qg5 Re8 15.h3 Nf8 16.Qh4; 11.Rc1 0–0 12.h3 Qe7 13.Qb3 Rac8 14.Rc2 Rfd8 15.a4 Ne5 16.Ne5) 11...0–0 12.cd5 ed5 13.dc5 Nc5 14.Rc1 Rc8 15.g3 Re8 16.Re1.

10.d3 A) 10...Bd6 11.Nbd2 (11.Qc2 0–0 12.Nbd2 Qc7 13.h3 Rad8 14.a4 Rfe8 15.Qc3 Ra8 16.Rac1; 11.Qa4 0–0 12.Nbd2 Kg7 13.h3 Qc7 14.Qc2 Rfd8 15.Bc3 Re8 16.a4; 11.Qb3 0–0 12.Nbd2 Qc7 13.h3 Rfe8 14.a4 Rad8 15.Qc3 Rb8 16.Rfe1; 11.Qc1 0–0 12.Nbd2 Qc7 13.h3 Rfe8 14.a4 Rad8 15.Qc3 Kg7 16.Rad1) 11...0–0 12.Qc2 Qc7 13.h3 Rfe8 14.Bc3 Rad8 15.Rad1 Ne5 16.Rb1; B) 10...dc4 11.dc4 Qc7 12.Nc3 Rd8 13.Qc2 Bd6 14.h3 h6 15.Nd2 0–0 16.Rad1.

10.d4 Bg7 11.dc5 (11.Nc3 0–0 12.cd5 Nd5 13.Rc1 Rc8 14.Nd5 Bd5 15.Bc4 Qe7 16.Qe2; 11.cd5 Nd5 12.Nc3 0–0 13.Rc1 Rc8 14.Nd5 Bd5 15.Bc4 Qe7 16.Qe2; 11.Nbd2 0–0 12.Rc1 Rc8 13.h3 cd4 14.ed4 Bh6 15.a4 Ne4 16.cd5; 11.a4 0–0 12.cd5 Nd5 13.Nc3 Nb4 14.h3 e5 15.de5 Ne5 16.Ne5; 11.Qa4 0–0 12.Nbd2 Rc8 13.Rac1 cd4 14.ed4 Qe7 15.c5 bc5 16.Qa5; 11.h3 cd4 12.Bd4 0–0 13.Nbd2 Qe7 14.cd5 Nd5 15.Bg7 Kg7 16.Nc4; 11.Qc2 0–0 12.Nbd2 Rc8 13.h3 Re8 14.Rac1 cd4 15.ed4 dc4 16.Nc4; 11.Qb3 Rc8 12.Nbd2 0–0 13.Rac1 Ne4 14.a4 Qe7 15.Rfd1 Rfd8 16.Ne4; 11.Bd3 cd4 12.Bd4 0–0 13.Nbd2 Rc8 14.Rc1 Qe7 15.cd5 e5 16.Nc4; 11.Re1 0–0 12.Nbd2 Rc8 13.Bd3 Ne4 14.h3 cd4 15.ed4 Nd2 16.Nd2; 11.g3 0–0 12.Nbd2 cd4 13.ed4 Rc8 14.Rc1 Qe7 15.Bd3 Ne4 16.Re1) 11...Nc5 12.cd5 Bd5 13.Be5 0–0 14.Nc3 Rc8 15.Nd5 Nd5 16.Bg7.

10.cd5 ed5 11.d4 (11.Qa4 Bd6 12.Nc3 0–0 13.Qh4 h5 14.Qg5 Ng4 15.h3 Qg5 16.Ng5; 11.Nc3 Bd6 12.Qa4 0–0 13.Qh4 h5 14.Qg5 Re8 15.h3 Ne5 16.Na4) 11...c4 12.Ne5 Bd6 13.f4 0–0 14.Nc3 Qe7 15.Qc2 Rac8 16.a4.

10.Ne5 Ne5 11.Be5 Bd6 12.Bd6 Qd6 13.Bf3 0–0 14.Nc3 Ra7 15.cd5 Bd5 16.Re1.

10.Ng5 A) 10...dc4 11.Qa4 (11.Qc1 Bg7 12.Bf3 Bd5 13.e4 Bb7 14.Qc4 0–0 15.Qc2 h6 16.Nh3; 11.f4 h6 12.Nf3 g5 13.Bc4 Bd6 14.g3 gf4 15.ef4 Rg8 16.Ne5; 11.Bc4 Bd6 12.Nc3 h6 13.Nf3 0–0 14.h3 Qc7 15.Qe2 Rfe8 16.d3; 11.Nc3 h6 12.Nf3 Bd6 13.Bc4 0–0 14.h3 Rc8 15.Rc1 Re8 16.a4; 11.a4 Bg7 12.f4 0–0 13.Bc4 Ne4 14.Bg7 Kg7 15.Be6 Ng5 16.Bd7; 11.Qc2 h6 12.Nf3 Bg7 13.Qc4 0–0 14.a4 Qc7 15.Nc3 Bf3 16.Bf3) 11...Be7 12.f4 0–0 13.Nc3 Nd5 14.Nge4 Nc3 15.Nc3 Nf6 16.Rad1; B) 10...Bd6 11.Nc3 (11.cd5 ed5 12.Qa4 0–0 13.Qh4 h5 14.Nc3 Nh7 15.f4 Be7 16.Na4; 11.Qa4 h6 12.Nf3 0–0 13.Nc3 dc4 14.Qc4 g5 15.h3 Ne5 16.Ne5; 11.Qc2 h6 12.Nf3 0–0 13.cd5 ed5 14.Nc3 Qc7 15.h3 Rfe8 16.d4; 11.g3 dc4 12.f4 h6 13.Nf3 g5 14.Ne5 c3 15.Bc3 gf4 16.Nc4; 11.f4 0–0 12.Nc3 d4 13.Na4 h6 14.Nf3 Re8 15.ed4 cd4 16.Nd4) 11...h6 12.Nf3 0–0 13.Qb3 Qc7 14.h3 Rfd8 15.cd5 ed5 16.Na4; C) 10...h6 11.Nf3 Bd6 12.Nc3 0–0 13.Qb3 Qe7 14.a4 Rfe8 15.Rfe1 Rac8 16.Rac1.

6.c4 Bd6

7.a4 0–0 8.Nf3 Nbd7 9.Be2 b6 10.d3 Bb7 11.Nbd2 Qe7 12.Qc2 e5 13.e4 d4 14.Nf1 Ne8 15.Ng3= g6 16.Bc1 Ng7 17.Bh6 f5 18.Ng5 fe4 19.N3e4 Nf6 20.Bf3 Ne4 21.Ne4 Ra7 22.0–0–0 Be4= 23.Be4 Qh4 24.Bd5 Kh8 25.Bg7 Rg7 26.f3 Be7 27.Qe2 Bg5 28.Kc2 Be3 29.Rdf1 g5 30.Be6 Rf6 31.g3 Qh6 32.Bg4 Qg6 33.h4 gh4 34.Rh4 Qf7 35.Rfh1 Qg8 36.Qh2 e4=+ 37.f4 (White gets in control) 37...ed3 38.Kb3 Re7 39.Bf3 Qg6 40.Rg4 Qf5 41.Rg5 Qg5 42.fg5+= Rf3 43.g6 h6 44.Qh4= d2 45.Kc2 Bg5 46.Qg5 d1Q 47.Kd1 Rf1 48.Rf1 hg5 49.Rf6 Re3 50.Rb6+/– Rc3 51.Ra6 Rc4 52.Ra5 Rb4 53.b6 Rb6 54.Rc5 Rb4 55.a5 g4 56.Kc2 Kg7 57.Rg5 Ra4 58.Kb3+– Ra1 59.Kc4 Ra3 60.Kd4 (60...Rg3 61.Kc5+–) 1–0. Mroz,Antoni – Laskowski,Janusz, corr 1. AMM Poland, 1992.

7.Qc2 0–0 8.Nf3 Nbd7 9.Be2 b6 10.h4 Bb7 11.Nc3 Ne5 12.cd5 ed5 13.Ng5 h6 14.f4 Neg4 (better is 14...Ng6!? 15.Ne6 fe6 16.Qg6 d4+=) 15.Bg4+= hg5?? (better is 15...d4 16.Bf3 Bf3 17.Nf3 dc3 18.Bc3 Nd5+=) 16.hg5+– Ne4 (16...Re8 17.gf6 g6+–) 17.Ne4 de4 18.0–0–0 (better is 18.Qc3 f6 19.Qc4 Rf7 20.g6+–) 18...Qe7? (18...Re8+–) 19.Rh3 f5 20.gf6! Rf6 (20...gf6 21.Qc4 Double attack) 21.Qc4 Qf7 22.Qc3 Kf8 23.Be2 Ke7 24.g4 Rh6 25.Rh6 gh6 26.Rh1 Qg6 27.Qg7 Qg7 28.Bg7 c4 29.a4 (29.Bh6?! Ba3 30.Kc2 Bd5 31.Bg5 Kf7 32.Rh7 Kg8+–; 29.Bc4?! Rc8 30.Rh6 Rc4 (worse is 30...Ba3 31.Kc2 Rc4 32.Kb3+/–) 31.Kb2 Bc8+=; 29.Rh6?! Ba3 30.Kc2 Bd5+–) 29...Ba3 30.Kc2 Bd5 31.Rh6 Bc5 32.Be5 Rg8 33.Bc7 Be6 34.f5 Bf5 35.gf5 Rg2 36.Bc4 Be3 37.Rh2 Rh2+– 38.Bh2 Bg5 39.Bc7 1–0. combijack (1800) – jacamabe (1725), gameknot.com, 2013.

7.Qf3 =+.

7.Nf3 0–0 8.Qc2 Nbd7 9.d4 cd4 10.Nd4 Nc5 11.cd5 ed5 12.Nd2 Be6 13.N2f3 Rc8 14.Rd1 (14.Be2 a4 15.Rd1 Nb3=) 14...Qe7 (14...Nce4 15.Qb3 Ng4–+) 15.Nf5 Bf5 16.Qf5 Nce4 17.Bd3 Ba3 18.Ba3 Qa3 19.0–0 Rc3 20.Bb1 Rfc8 21.Nd4 Qb2 22.Nc6? Re8 23.Ne5 Qb5 24.Ba2 Nd6 25.Qf4 Nc4 26.Nf3 Qc5 27.g4 b5 28.g5 Ne4 29.Rd4 Qa3 30.Bb1 Rc1 31.Rdd1 Rd1 32.Rd1 Qb2 33.Nd4? Nc3 34.Bh7–/+ Kh7 35.Qf7 Re4 (36.Qh5 Kg8–+; 35...Nd1?! 36.Qh5 Kg8 37.Qe8 Kh7 38.Qh5 Kg8 39.Qe8 Kh7 40.Qh5 Kg8 41.Qe8=) 0–1. Nemes,Zoltan (2140) – Molnar,Balazs (2175), HUN–chT2, 1998.

7.Nf3 0–0 8.d4 =.

7.Nf3 b6 8.a4 (8.d4 0–0=) 8...0–0 9.d4 Bb7 10.dc5 Bc5 11.cd5 Nd5 (11...Bb4 12.Bc3 Nd5 13.Bb4 Nb4 14.Nbd2+=) 12.Nbd2 Nd7 (12...Qe7 13.Bc4=) 13.Rc1 N7f6 14.Be2 Be3 (14...Ng4 15.Qb3=) 15.fe3+= Ne3 16.Qb3 Ng2 17.Kf1 Nf4 18.Rg1 Ng6 19.h4 (19.Nc4 Rc8+=) 19...Bd5 (19...Nh4 20.Nc4 Ng6 21.Bf6 Qf6 22.Nb6=) 20.Qe3+/– Nh5 (20...Re8 21.Bf6 Qf6 22.Qb6+/–) 21.Ng5 (21.Rg5 Nf6+/–) 21...Ngf4 (better is 21...Nf6+/–) 22.Nh3+– Ne2 (22...Bg2 23.Rg2 Ng2 24.Kg2+–) 23.Qe2 (23.Ke2?! f6 24.Qh6 Qe8+/–) 23...Nf6 (23...f6 24.Qh5 e5 25.Ke1+–) 24.Qe5 Kh8 (24...h6 25.Qf6 Qf6 26.Bf6 g6+–) 25.Rg7!! (25.Rg7 h6 26.Qf6 Qf6 27.Bf6+–) 1–0. Nater,Burkhard – Jobe,Tom, IECC, 1999.

6.c4 Nbd7

7.d4 cd4 8.Bd4 e5 =.

7.cd5 ed5 8.Nc3 =+.

7.cd5 Nd5 8.Qc2 N7b6 9.Be2 c4 10.Bc4 Nc4 11.Qc4 Bd7 12.Nf3 a4 13.0–0 Qb6 14.Nd4 Bd6 15.Nc3 Nc3=+ 16.Bc3 0–0 17.Nf3 f6 18.Rfb1 Rfc8 19.Qg4 Qd8 20.Qe4 Qe8 21.b6 Bc6 22.Qg4 h5 23.Qh3 Be4 24.Rc1 Ra6 25.Ne1 Rb6 26.Qh4 Bg6 27.Nc2 Rb3 28.Nb4 e5 29.Qg3 Rc4 30.f3 h4 31.Qe1 Bf7 32.Nc2 Bc5 33.Kh1 Be6 34.e4 h3 35.Qg3 Qh5 36.Rcb1 hg2 37.Qg2 Rb1 38.Rb1 Qf7 39.Nb4 Qd7 40.Rc1 Bb4 41.ab4 Qd3 42.h4 Rc7 43.h5 a3 44.Rg1 a2 45.f4 Bh3 46.Qg6= Qf3 47.Kh2 Be6 (48.Qe8 Kh7 49.Qe6 Qf2 50.Kh1 Qf3 51.Kh2 Qf2 52.Kh1 Qf3 53.Kh2=). Jacewicz,Grzegorz – Nemec,Zdenek, corr friendly, 2002.

7.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 a5 5.b5 c5 6.e3 Nbd7 7.c4).

7.f4 b6 8.Nf3 Bb7 9.a4 Qc7 10.Be2 Bd6 11.g3 e5 12.cd5 e4 13.Nh4 Bd5 14.Nc3 Bb7 15.Nf5 Bf8 16.Bc4 (16.g4 h6=) 16...g6 17.Nh4 Be7 (17...Bg7 18.0–0+=) 18.Ng2 Rf8 (18...0–0 19.0–0=) 19.Qb3 0–0–0 20.0–0 Ne8 21.Bf7 Nd6 22.Nd5 Bd5 23.Bd5 Bf6 24.Rac1 Bb2 25.Qb2 Nf6 26.Bc6 Nf5 27.Rc4 Qd6 28.Be4 Ne4 29.Re4 Qd2 30.Qd2 Rd2 31.g4 Nd6 32.Re7 Rf7 33.Rf7 Nf7 34.Ra1 (34.h4!?+=) 34...Nd6= 35.Nh4 White prepares the advance f5 35...Re2 36.f5 gf5 37.Rd1 Kc7 38.g5?? (better is 38.Nf5 Nc4 39.h3=) 38...Ra2–+ 39.Rd5 Ra4 40.Nf5 Rg4 41.Kh1 Ne4 42.h4 a4 43.Kh2 Nc3 44.Rd3 Nb5 45.Rd1 Nc3 46.Ra1 b5 47.Kh3 Re4 48.h5 Nd5 49.Ra3 c4 50.Kg3 Re5 51.Nd4 Kb6 52.Kg4 Kc5 53.Nc2 c3 54.g6 hg6 55.hg6 Kc4 56.g7 Ne7 57.Ra1 Re6 58.Na3 Kc5 59.Rh1 Rg6 60.Kf3 b4 61.Rh5 Kc6 62.Nb5 Rg7 63.Nd4 Kd6 64.Ra5 Rf7 65.Ke2 Nd5 66.Ra6–/+ Ke5?? 67.Re6 1–0. Laco,Giuseppe (2150) – Liebscher,Helmar, 10. TCh–Euro sen, 2008. (=1.c4 Nf6 2.b4 e6 3.a3 a5 4.b5 d5 5.e3 c5 6.Bb2 Nbd7)

6.bc6 bc6

7.c4 Ba6 8.Qa4= Be7 (8...dc4 9.Nf3=) 9.Nf3 0–0 10.Nc3 (10.Bc3 Bb7=) 10...Nfd7 (10...Nbd7 11.d3+= (worse is 11.Qc6 Nc5 12.d4 Rc8–+)) 11.d3= Bf6 (11...Nb6 12.Qb3= (12.Qa5 Bb7 13.Qa8 Ba8–+)) 12.Be2 (12.Qc2 Nb6=) 12...Nc5 (12...Nb6 A) worse is 13.Qa5 dc4 14.dc4 Bc4–+ (14...Nc4?! 15.Qd8 Rd8 16.Bc4 Bc4 17.Nd1+=); B) 13.Qc2=) 13.Qc2 dc4 14.dc4 Qc7 15.0–0 (15.Rb1 Nbd7=) 15...Nbd7 16.Rfd1 Rab8 17.Rab1 Rb7 18.Ba1 Rfb8 19.Nd2 (19.Rb7 Qb7 20.Nd4 e5=) 19...Rb1 20.Rb1 Rb1 21.Qb1 Qb6 (21...Be5 22.f4 Bd6 23.Qb2=) 22.Qc2 h6 (22...Be7 23.Nce4=) 23.Bb2 (23.Na4 Qd8 24.Nc5 Nc5+=) 23...Ne5= Exerts pressure on the isolated pawn 24.Bc1 (24.h3 Kh8=) 24...Qd8 (24...Ned7 25.Nce4=) 25.Nce4+= Be7 (25...Ne4 26.Ne4 Be7 27.f4+=) 26.Bb2 Ned3 27.Nc5 Nc5 28.Nf3 Bf6 29.Nd4 Qd7 30.Bf3 Bb7= 31.Be2 e5 32.Nf3 e4= 33.Nd4 a4 34.h3 Be5 35.Bg4 Qc7 36.Bc3 Bc8 37.Bc8+= Qc8 38.Nc6! Qc6 39.Be5 Nb3 40.Qc3 f6 41.Bd4 Kf7 42.Kf1 Ke6 43.Ke2 Qa6 44.Qb4+/– Nc1 45.Kd2 Nd3 46.Qb5 Qb5= 47.cb5 The passed pawn on b5 will quickly become a dangerous weapon 47...Nf2 48.Kc3 Nd3 49.Kc4 Kd6 50.h4 h5= 51.g3 Kc7 52.Kd5 Nf2 53.Bc5 g5 54.Ke6 g4 55.Kf6 Nh1 56.Ke6 Kb7 57.Bd6 Kb6 58.Kd5 Kb5 59.Ke4 Kc4 60.Kf4 Kd5 61.Bb8 Nf2 62.Kf5 Ne4 63.Kg6 Ke6 64.Kh5 The passed pawn on h4 quickly leads to threats 64...Kf5 65.Bc7 Nd2? 66.Kh6 Nc4 67.Kg7 Na3+= 68.Bb6 Nc4 69.Bd4 Nd6= 70.Bb2 Ne8 71.Kf7 Nd6= 72.Kg7 Ne8 73.Kh6 Nf6?? 74.h5+– Ne4 75.Kg7 Ng3 76.h6 Nh5 77.Kf7 a3 78.h7 ab2 79.h8Q (79.h8Q Ke4 80.Qb2+–) 1–0. Schwarz,B – Schwarze,Werner, OWL–ch Buende, 1949.

7.c4 Bd6 8.Nf3 +=.

7.c4 Nbd7 8.Nc3 Ba6 =+.

7.c4 Nbd7 8.d3 Bd6 9.Nf3 0–0 10.Nbd2 Qe7 11.Be2 Rb8 12.Qc2 Nc5 13.0–0 Bd7 14.Rfd1 Rfc8 15.h3 Na6 16.d4 c5 17.cd5 cd4=+ 18.Ba6?? Rc2–+ 19.Bd4 Nd5 20.Bd3 Rcc8 21.Nc4 Ba4 22.Nd6 Qd6 23.Rdc1 Rc1 24.Rc1 Qd7 25.Ne5 Qe8 26.Rf1 Bb5 27.h4 Bd3 28.Nd3 Qb5 29.Ne5 Qe2 30.h5 Rb3 31.h6 (31...f6 32.Nf3 Ra3 33.Re1–+; 31.Rc1 h6 32.Nd7 Ne7–+). uno (1775) – spudman, ICC, 2003.

7.c4 Nbd7 8.cd5 cd5 (8...ed5 9.Qa4 Qb6 10.Bd4=) 9.Nf3 Bd6 (9...Rb8 10.Bc3+=) 10.Bf6 (10.Nc3 0–0=) 10...Qf6 (10...Nf6 11.Bb5 Bd7 12.Nc3+=) 11.d4 (11.Nc3 0–0+=) 11...0–0 (11...Qe7 12.Qa4+=) 12.Bd3 (12.Nc3 Ba6=) 12...e5 Black gets in control 13.de5 Ne5 14.Ne5 (14.Nd4 Qg5 15.g3 Bg4–/+) 14...Qe5–/+ 15.Ra2 d4 (15...Be6 16.Rd2–/+) 16.Qe2 (better is 16.Re2!?+=) 16...Bb7–/+ 17.e4 Rfc8 (17...Rac8 18.Rc2–+) 18.Rc2 (18.Qd1 Rc5 19.Nd2 Rc3–+) 18...Rc2–+ 19.Bc2 Ba6 20.Qd2 Rc8 With the idea Qb5 21.Kd1 Qb5 With the decisive threat Bf4 22.e5 Be5 23.Re1 Bf6 (23...Bf4 24.Qf4 d3 25.Qa4 dc2 26.Qc2 Rc2 27.Kc2–+) 24.a4 Qh5 (24...Qb8!? 25.Bf5 d3 26.Bc8 Qb1 27.Qc1 Qb3 28.Kd2 Bg5 29.Re3 Be3 30.fe3 Qa2 31.Kc3 Bc8 32.Qb2 Qa4 33.Kd3 Bf5 34.Kd2–+) 25.f3 g6 (25...Qc5 26.Re4 Bg5 27.f4 Bf4 28.Rf4–+) 26.h3 Qd5 (26...Qd5 27.Be4 Qb3 28.Bc2 Qb8–+) 0–1. Montag,Wilfrid Franz – Reinhardt,Rudolf, corr FRG–ch Germany, 1986.

7.d4 Bd6=+ 8.Nd2 0–0 9.c4 Ba6 10.Ngf3 Nbd7 11.Be2 c5 12.0–0= Qc7 13.h3 cd4=+ 14.Nd4 dc4–/+ 15.Bc3 Nd5 16.Ne4 Nc3 17.Nc3 Rab8 18.Qc2 Nc5 19.Rab1 Nb3 20.a4 Nd4 21.ed4 Bb4 22.Rfd1 Rfd8 23.Rbc1 Rb6 24.Rb1 Rbd6 25.Na2–/+ Qb6 26.Qb2 Rb8 (27.Rbc1 Qc6–+) 0–1. Kowalkowski,Zbigniew – Laskowski,Janusz, corr 1. AMM Poland, 1992.

7.Nf3 Bd6 8.c4 Ba6 9.d3 Nbd7 10.Be2 (10.Qa4 Qb6 11.Bd4 Qc7=) 10...0–0 11.0–0 Qc7 12.Nbd2 Rfb8 13.Qc2 c5 (13...e5 14.Bc3=) 14.Rfb1 Bb7 15.Rc1 a4 16.cd5 ed5 17.Rab1 Bc6 18.h3 Rb6 19.Nh4 Rab8 20.Nf5 Bf8 21.Bc3 Rb1 22.Rb1 Rb1 23.Nb1 g6 24.Nh4 d4 25.ed4 Bg2 26.dc5 Bh3 27.Qa4 Bc5 28.Qa8 Bf8 29.Ng2 Bg4 30.Bf1 Nb6 31.Qa5 Nfd5 32.Bd4 Bg7 33.Bg7= Kg7 34.Nd2 h5 35.Nc4 Qc6 36.Nb6 Nb6 37.d4 Qf6 38.Qc5 Bf3 39.Ne1 Bd5 40.Bh3 h4 41.a4 Qg5 42.Bg2 h3 43.Qb6 Bg2 44.Qd6 Bc6 45.Kh2 Ba4 46.Kh3 Qg1 47.Qe5 Kh7 48.Ng2 Qf2 49.Qe3 Qf5 50.Kg3 Bc6 51.Qf4 Qf4 52.Nf4 g5 53.Nd3 0–1. marekt – wanttaja, ChessWorld.net, 2003.

7.Nf3 Bd6 8.c4 Nbd7 9.Qa4 0–0 10.Qc6 =.

7.Nf3 Bd6 8.c4 Nbd7 9.Nc3 0–0 10.cd5 cd5 (10...ed5 11.Rb1=) 11.Bb5 (11.Nb5 Be7=) 11...e5 (11...Rb8 12.Rb1+=) 12.d3 (12.0–0 Rb8+=) 12...Bb7 (12...Rb8 13.0–0+=) 13.d4 (13.0–0 Rb8 14.Rb1 Qc7+=) 13...e4 14.Nd2 Qe7 15.Nb3 (15.0–0 Ba6+=) 15...Rfc8 16.Qe2 (16.0–0 Ba6 17.Ba6 Ra6+=) 16...Nb6 (16...Bc6 17.Bc6 Rc6 18.0–0–/+) 17.0–0 Nc4 Increasing the pressure on the isolated pawn on a3 18.Na4 (18.Bc4!? dc4 19.Nd2+=) 18...Bc6–/+ Black gets strong initiative (worse is 18...Na3 19.Ba3 Ba3 20.Nb6+=) 19.Bc6 Rc6 20.Nbc5 Nb2 (20...Qc7 21.h3–/+) 21.Nb2 (better is 21.Qb2!? Rac8 22.Rab1–/+) 21...Bc5 (21...Qc7 22.Rfb1–+) 22.Rfc1 (22.Rac1 Rac8 23.dc5 Rc5 24.Rc5 Rc5–/+) 22...Rac8–+ 23.dc5 Rc5 24.Rc5 Qc5 25.h3 (25.Nd1 d4–+) 25...h6 26.Qa6 (26.Na4 Qc2 27.Qa6 Qc6 28.Qc6 Rc6–/+) 26...Qc3 27.Rf1 (27.Qb7 Qc7 28.Qc7 Rc7–+) 27...Rb8 28.Na4 Qa3 29.Qa5 d4 (29...Kh7!? 30.Qc7 Rb3 31.Qc6–+) 30.ed4–/+ e3 31.fe3 Qe3 32.Kh2 Qd4 33.Qc7 Re8 34.Nc3 Re5 35.Qb8 Kh7 36.Qb1 Kh8 37.Qb8 Re8 38.Qc7 Kg8 39.Rf4 Qd3 40.Rf3 Qd2 41.Qg3 Qd4 42.Qf4 Qc5 43.Nd1 Qa7 44.Nf2 Qd7 45.Ng4 Ng4–+ 46.Qg4 Qg4 47.hg4 f6 48.Ra3 Re7 49.Ra5 Kf7 50.Rb5 Re5 51.Rb7 Kg6 52.Ra7 h5 53.gh5–/+ Rh5 54.Kg3 Rg5 55.Kf2 Rg4 56.Rb7 f5 57.Ra7 Kf6 58.Rb7 g6 59.Rb3 Kg5 60.Ra3 Kh5 61.Rb3 g5 62.Rf3 Kg6 63.Ra3 Rb4 64.Rc3 Rb8 65.Ra3 Kh5 66.Rh3–/+ Kg6 67.Ra3–+ Rb2 68.Kf1 Kh5 69.Rh3 Kg4 70.Rc3 Rb4 71.Kf2 f4 72.Ra3 Rb2 73.Kf1 Rb1 74.Kf2 Rh1 75.Rb3 Kh4 76.Ra3 Kh5 77.Rb3 g4 78.Rb8 Ra1 79.Rh8 Kg6 80.Rg8 Kf5 81.Rf8 Ke4 82.Re8 Kd5 83.Rd8 Ke6 84.Re8 ˝–˝. Ljubojevic,Ljubomir – Cvetkovic,Srdjan, Novi Travnik, 1969.

7.Nf3 Nbd7 8.Be2 Rb8 9.Qc1 Qb6 10.Ra2 e5 11.0–0 Bd6 12.d4 e4 13.Nfd2 Qc7 14.h3 0–0 15.c4 Qd8 (15...Ba6 16.Qc2+=) 16.cd5 cd5 17.Nc3 Rb6 18.Na4 Rb8 19.Bc3 Re8 20.Qc2 Nf8 21.Nb3 The isolani on a5 becomes a target (21.Rc1 Bc7=) 21...Bh3 22.Na5 Qd7 23.Nc5 (23.gh3 Qh3 24.f4 Qe3 25.Kg2 Ng6–+ (25...Bf4?! 26.Be1–/+)) 23...Qc8 (23...Qf5 24.Rc1+= (worse is 24.gh3 Qh3 25.f4 ef3 26.Bf3 Re3–+)) 24.Nab7 (24.gh3 Qh3 25.f4 ef3 26.Bf3 Re3–+) 24...Rb7 25.Nb7 Bg2 26.Kg2 (26.Nd6 Qh3 27.f4 ef3–+) 26...Qb7 27.a4 Qd7 28.a5 Ng4 29.Qd1 (29.Rg1 Rc8+=) 29...Nh2= 30.Rh1 Re6 31.Bh5 Rh6 32.a6 Qf5 (32...Qd8!? 33.Rh2 Bh2+=) 33.Rh2= Bh2 34.Bg4 (34.Qg4 Rg6 35.Kh3 Rg4 36.Bg4+=) 34...Rg6= 35.Kh2 Rg4 (35...Qg4?? 36.Qg4 Rg4 37.a7 Rh4 38.Kg3+–) 36.Qg4 Qg4 37.a7 Qh4 38.Kg2 Qg4 39.Kf1 Qh3 40.Ke1 Qh1 41.Kd2 Qb1 42.a8Q Qd3 43.Kc1 Qc3 44.Rc2 Qe1 45.Kb2 Qb4 46.Ka2 Qd6 47.Rc8 h5 48.Rd8 Qe7 49.Rd5 g6 (better is 49...Qf6!? 50.Rd8 Qf2 51.Kb3 Qe3 52.Kc4 Qc1 53.Kd5 Qg5 54.Kc4 Qe7=) 50.Re5+/– Qf6 51.Qe4 Qf2 52.Ka3 h4 53.Re8 Qf6 54.Qa8 Qd6 55.Kb3 Kg7 56.Kc4 h3 57.e4 Qc7 58.Kd3 Qg3 59.Kc4 Qc7 60.Kd3 Qg3 ˝–˝. Poley,V (2325) – Sukhareva,E (2245), Taganrog RUS, 8th Dvorkovich Mem, 2013.

7.Nf3 Nbd7 8.Be2 Bd6 9.d4 Qb6 10.Ra2 Ba6 11.0–0 0–0 12.Nbd2 Be2 13.Qe2 Qb5 14.c4 Qa6 15.Rc1 Nb6 16.Kf1 Na4 17.c5 Qe2 18.Ke2 Bc7 19.h3 Rab8 20.Rc2 (20.Ba1!?=) 20...Rb5+= (worse is 20...Nb2 21.Rcb2 a4 22.Rb1=) 21.Ba1 Nd7 22.Rc1 Rfb8 23.Rac2 f6 24.g3 Kf7 25.Kd1 h6 26.Ng1 e5 27.Ne2 e4 28.Nc3 Nc3 29.Bc3 f5 30.a4 R5b7 31.Ra2 g5 32.Kc2 f4 33.gf4 gf4 34.Rg1 f3 35.Raa1 Bh2 36.Rh1= Bc7 37.Rag1 Nf6 38.Rb1 Rb1 39.Rb1 Rb1 40.Kb1 Nh7 41.Nb3 Exerts pressure on the isolated pawn 41...Ng5 42.Na5? Ba5 43.Ba5–/+ Nh3 44.Bc7 Nf2–+ 45.a5?? Nd3 46.Bg3 Nb4 47.Kc1 Ke6 48.Kd2 Kd7 49.Ke1 Kc8 50.Kf1 Kb7 0–1. Fournier,Frederic (1855) – Mataigne,Jean Michel (2030), FRA Ch (Team) N4 SenlisA–SenlisB, 2005.

7.Nf3 Be7 8.d4 0–0 9.Bd3 c5 10.dc5 Bc5 11.c4 Ba6 12.cd5 Bd3 (worse is 12...Nd5 13.Bh7 Kh7 14.Qc2 Kh8 15.Qc5+/–) 13.Qd3 Nd5 14.Nc3 Ne3 (14...Nf6!? 15.Rd1 Qd3 16.Rd3 Nc6=) 15.Qd8+/– Nc2 16.Kd2 Rd8 17.Kc2 Bf2 18.Rhd1 Nc6 19.Rd8 Rd8 20.Rd1 Rd1 21.Nd1 Bb6 22.Nc3 f6 23.Na4 Bc7 24.Nc5 e5 25.h3 Kf7 26.Nd2 Bb6 27.Ncb3 Ke6 28.Nc4 a4 (better is 28...Bc7!?+/–) 29.Nb6+– ab3 30.Kb3 h5 31.a4 g5 32.Bc3 e4 33.Nc4 White plans a5 (33.Kc4!? f5+–) 33...f5 Black prepares the advance g4 34.a5 f4 35.Nd2 (35.a6 Kd5+–) 35...e3 (35...Kd5 36.a6+–) 36.Nf3 (36.Ne4 Kf5 37.Nd6 Ke6+–) 36...g4 37.hg4 hg4 38.Nd4 (38.Ne1!? Kd5 39.a6+/–) 38...Nd4+= 39.Bd4 Kd5?? (better is 39...e2 40.Bc3 f3 41.gf3 gf3=) 40.Bc3?? (better is 40.Kc3 Kc6 41.a6+–) 40...f3–+ 41.gf3 gf3 42.a6 Kc6 43.a7 Kb7 44.Bd4 f2 45.Be3 f1Q 46.Kc2 Qe2 47.Bd2 Ka7 48.Kc3 Ka6 49.Kc2 Kb5 50.Kc3 Qc4 51.Kb2 Qd3 52.Kc1 Kc4 53.Bh6 Qe2 54.Bd2 Kb3 (54...Kb3 55.Kb1 Qd3 56.Ka1 Qd4 57.Bc3 Qd1#) 0–1. Fournier,Frederic (1765) – witals (1805), chessOK.com, 2012.

7.Nf3 Be7 8.Ne5 0–0 9.Be2 Ba6 (9...Qd6 10.d4=) 10.0–0 (10.d3 Bd6=) 10...Qc7 11.f4 Nbd7 12.Nd7 Nd7 13.Ba6 Ra6 14.c4 Bf6 (14...dc4 15.Qc2–/+) 15.Bf6 Nf6 16.Qe2 Rb6=+ 17.Nc3 Rfb8 18.f5 e5 19.cd5 cd5–/+ 20.Rac1 Rc6 21.Rb1=+ Rb1 22.Rb1 d4 23.ed4+/– ed4? 24.Nd5!!+– Rc1 25.Kf2 Qa7 26.Nf6 gf6 27.Rc1 (27…d3 28.Qe3+–) 1–0. Konijn,PM – van der Bergh,G, Bondswedstrijd: Heerhugowaard 1 – ZSC/Saende 3, 2004.

6.Nf3 b6

7.c4 Bb7 8.Qc2 Be7 9.Be2 Nbd7 10.0–0 0–0 11.Rd1 Rc8 12.cd5 Nd5 13.Nc3 Nc3 14.dc3 Qc7 15.c4 Bf6 16.Rd2 Rcd8 17.Rad1 Bb2 18.Qb2 Nf6 19.Qe5 Qe5 20.Ne5 Rd2 21.Rd2 Rb8 22.Bf3 Ne4? (better is 22...Bf3 23.Nf3 Kf8+=) 23.Be4+– Be4 24.Nd7 Re8 25.Nb6 h6 26.Nd7 Rc8 27.f3 Bb7 28.Nb6 Rb8 29.Na4 Rc8 30.Rd7 Ba8 31.Ra7 e5 (31...Rd8 32.Nb6 Bd5 33.cd5+–) 32.Nb6 (32.Nb6 Re8 33.Ra8+–) 1–0. Vasut,Karel (2165) – Kaplan,Daniel (2070), Havlickuv Brod Vysocina op–B, 2006.

7.c4 Bb7 8.Nc3 Nbd7 9.d4 Rc8 10.Rc1 cd4 11.ed4 dc4 (worse is 11...Rc4 12.Bc4 dc4 13.Nb1+=) 12.Na4 Bd6 13.Ne5 c3! 14.Nd7 (14.Nc3 Ne5 Combination; 14.Bc3 Ba3 Deflection; 14.Rc3 Rc3 Combination) 14...cb2 (14...Kd7?! 15.Nc3 Qe7 16.Na4+=; 14...Qd7 15.Nb6 Qd8 16.Nc8 cb2 17.Nd6 Qd6 18.Rb1+/–) 15.Nf6 gf6 16.Rc8 Qc8 17.Nb2 Ba3 18.Na4 Bb4 19.Ke2 Qc7 20.f3 Ke7 21.Ke3 Rd8 22.Qa1 (22.Be2 Bd6 23.Qa1 Bh2 24.Qa3 Ke8–+) 22...Qc2 (22...Rd4 23.Be2 Qf4 24.Kf2 Rd2–+) 23.Be2 Qd2 24.Kf2 Qd4 (24...Rd4? 25.Rd1 Qd1 26.Bd1+–) 25.Qd4 Rd4 26.Rc1 Rd5 27.Rc7 Rd7 28.Rc2 Bc5! 29.Nc5 bc5 30.Rc5 Bd5 31.b6 Rb7 32.Ra5 Rb6 33.Ra7 Kf8 34.Ke3 Rb3 35.Kd2 Rb2 36.Ke3 Kg7 37.Rc7 e5 38.Rd7 Bc6 39.Rd2 Rd2 40.Kd2 Bd5 41.Bd3 h5 42.Ke3 h4 43.Be4 Be6 44.g3 f5 45.Bc2 Kg6 46.g4 Kg5 47.gf5 Bf5 48.Bb3 f6 49.Bf7 Bd7 50.Bd5 f5 51.Bb7 Ba4 52.Bd5 Bc2 53.Bc6 Bb1 54.Bb7 f4 55.Kf2 Kf6 56.Kg2 Bf5 57.Bd5 Ke7 58.Kf2 Kd6 59.Bb7 Kc5 60.Ke2 Kd4 61.Kf2 Be6 62.Be4 Bd5 63.Bf5 Kc3 64.Bg6 Kd2 65.Bf5 Bc4 66.Be4 Bd3 67.Bd5 Bf5 68.Bc6 Kd3 69.Bb7 e4 70.fe4 Be4 71.Ba6 Kd4 72.Be2 Ke5 73.Bg4 Kf6 74.Bd7 Bf5 75.Bc6 Kg5 76.Bb5 Kg4 77.Be2 Kh3 78.Kg1 Be4 79.Bf1 Kg4 80.Kf2 Bd5 81.Kg1 Bc6 82.Kf2 Be4 83.Kg1 (better is 83.Bb5 Bd5 84.Bd7 Kg5 85.Bb5–+) 83...Kf3 84.Bg2 Ke3 85.Bf1?? (85.Be4 Ke4 86.Kf2+=) 85...f3 86.Bb5 (86.h3 f2 87.Kh2–+) 86...f2 87.Kf1 h3 88.Be2 Bg2 0–1. Hestevez,Eric (2020) – Humeau,Cyril (2155), Bastiais Master 6th, 2007.

7.c4 Bb7 8.cd5 Nd5 9.d4 Nd7 10.Nbd2 cd4 11.Nd4 Rc8 12.Nc6 Qc7 13.Rc1 Nc5 14.Be5 Qd7 15.Bd4 f6 16.Bc4 Bd6 17.Nb3 Bc6 18.Bc5 Bc5 (18...bc5 19.bc6 Qc6 20.Nd4 cd4 21.Bb5 Qb5 22.Rc8 Kf7 23.Rh8 Ba3 24.Qh5 (24.Qd4?? Bb4 25.Kd1 e5–+) 24...Ke7 25.Re8 Kd6 26.f4–+) 19.Nc5 bc5 20.bc6 Qc6 (20...Rc6? 21.Bb5 c4 22.Qa4+–) 21.Qh5 g6 22.Qh6 Kf7 23.0–0 Ne7 24.e4 Rcd8 (worse is 24...Qe4 25.Rfe1 Qf5 26.Re6 Qe6 27.Be6 Ke6 28.Qe3 Kf7 29.Kf1+/–) 25.Rfe1 Rd4 26.e5 Nf5 27.Qh3 fe5 28.Re5 Qd6 29.Be6 Attacking the isolated pawn on c5 29...Kg7 30.Ree1 Rd3 31.Qg4 Rf8 ˝–˝. Urlau,Thomas – Kraemer,Stefan, DESC, 2005. (=1.Nf3 Nf6 2.b4 e6 3.a3 a5 4.b5 d5 5.e3 c5 6.Bb2 b6)

7.c4 Bb7 8.Be2 dc4 9.Bc4 Nbd7 10.0–0 Qc7 11.h3 Bd6 12.Be2 0–0 13.d3 Rac8 14.Nbd2 Rfd8 15.Nc4 Bf3 16.Bf3 Ne5 17.Nd6 Qd6 18.d4 (better is 18.Be5!? Qe5 19.Qc2=) 18...Nc4–/+ 19.Bc3 Nd5 20.Bd5 Qd5 21.a4 cd4 22.Bd4 (22.Qd4!? Qg5 23.Qf4 Qf4 24.ef4+=) 22...e5–/+ 23.Bc3 Ne3 24.fe3 Rc3 25.Qd5 Rd5 26.Rfd1 Rd1 27.Rd1 f6 28.Rd6 Re3 29.Rb6 Ra3 30.Ra6 Ra4 31.Kf2 Ra2 32.Ke3 a4 33.Ke4 Rb2 34.b6 a3 35.Kd5 a2 (better is 35...Kf7!?–/+) 36.Kc6= e4 37.b7 Rc2 38.Kb6 Rb2 39.Ka7?? (better is 39.Kc6 Rc2 40.Kb6 Rb2 41.Kc6=) 39…e3–+ (39...e3 40.b8Q Rb8 41.Ra2 Rb3–+) 0–1. Ehrlich,Hans Georg (1930) – Lutterbey,Ralf (1915), Muensterland Verbandsliga, 2007.

7.c4 Bd6 8.d4 0–0 9.Nbd2 Bb7 10.Bd3 Nbd7 11.0–0 Rc8 12.Rc1 Qe7 13.a4 Ne4 (13...cd4 14.Nd4 (14.Bd4? e5–+) 14...Nc5 15.Be2+=) 14.cd5= ed5 15.Be2 (15.dc5 Ndc5 16.Bc2 f5=) 15...f5 16.dc5 bc5 17.Nb3 Bc7 18.Ba3 (18.Qe1 Ra8=) 18...Bb6 19.Nfd2 Rf6 (19...Nd6 20.Nb1=) 20.Nd4 Qf7 21.N4f3 Rh6 22.Ne4 (22.Bb2 Bc7=) 22...fe4 (22...de4?? 23.Bc4 Qc4 24.Rc4+– (24.Qd7?! Qd5 25.Rfd1 Qd7 26.Rd7 Bc6 27.bc6 ef3=)) 23.Ng5 Qe7 24.Nh3 Ne5 25.Nf4 Qh4 26.h3 d4 27.g3 (27.ed4 cd4 28.Rc8 Bc8 29.Nd5+=) 27...Qd8–/+ 28.ed4 cd4 29.Qb3 Kh8 30.Rc8 Qc8 31.Rc1 Qd7 (31...Qf5 32.Bb2–/+) 32.Bc5 e3 (better is 32...Bc5!? 33.Rc5 Qd6 34.Re5 Qe5+=) 33.fe3+= Rh3 34.Kf2?? (better is 34.e4!? Be4 35.Qe6 Rh1 36.Kf2 Qe6 37.Ne6 Rc1 38.Bb6–+) 34...Ng4 (34...Rh2 35.Ke1 Rh1 36.Kf2 Rc1 37.Bb6–/+) 35.Bg4 Qg4 36.Nh3= Qf5?? 37.Nf4+– Bc5 38.Rc5 Qc5+/– 39.ed4 Qd4 40.Qe3 Qd8 41.Qd3 Qe7 42.Qe3 Qf7 43.Qe6 Kg8 44.Qf7 Kf7 45.Nd3 Ke7 46.Nc5 Bd5 47.b6?? Kd6–/+ 48.b7 Kc7 49.Ke3 Bb7 50.Ne6 Kd6 51.Ng7 Bc6 52.Kd4 Ba4 53.g4 Bd7 54.g5 a4 55.Nh5 Bf5 56.Nf6 Ke6 57.Kc3 h6 58.gh6 Kf6 59.Kb2 ˝–˝. Krc,Milan – Vesely,Jaromir (2045), Brno Gargulak mem–A, 2004.

7.Be2 Be7 8.0–0 0–0 9.Ne5 Nbd7 (9...Bb7 10.d3=) 10.Nc6 Qe8 11.f4 (11.Nc3 Bd6+=) 11...Bd6 (11...Bb7 12.Nc3=) 12.Be5+= Ne4 (12...Be7!?+=) 13.d3+/– Be5 14.fe5 (14.Ne5?! Nd6=) 14...Ng5 15.h4 Bb7 16.hg5 (16.Qe1 Bc6 17.bc6 Nh3 18.Kh1 Ne5+/–) 16...Bc6 17.bc6 Ne5 18.c7 Qd7 19.d4 cd4 20.ed4 Ng6 21.Bd3 Qc7 22.Qf3 Rac8 23.a4 Rfe8 (23...Qc6 24.Qh5+/–) 24.Na3 Qc3?? (better is 24...Re7+/–) 25.Nb5+– Qc6 (25...Qd2 26.Qf7 Kh8 27.Bg6 Qg5 28.Qe8 Re8 29.Be8 Qe3 30.Rf2+–) 26.Qf7 Kh8 27.Bg6 hg6 (27...Red8+–) 28.Rf4 (28.Rf4 Qb5 29.Rh4) 1–0. market (2235) – lbyer (2045), GameColony.com, 2003.

7.Ne5 Bb7 8.Be2 Nbd7 9.f4 Ne5 10.fe5 Nd7 11.0–0 Qg5 12.Rf4 f5 (12...Ne5? 13.h4 Qh6 14.Be5+–) 13.Qf1 ˝–˝. Thorsteinsson,Erlingur (2385) – Runting,Timothy E (2425), W–ch21 sf01 corr, 1995. (=1.Nf3 Nf6 2.b4 e6 3.a3 a5 4.b5 d5 5.e3 c5 6.Bb2 b6)

6.Nf3 Bd6=+

7.c4 b6 8.Nc3 Bb7 9.cd5 ed5 10.d4 c4 11.g3 0–0 12.Bg2 Nbd7 13.0–0 Re8 14.Qc2 Rc8 15.Ng5 h6 16.Nf3 Qe7 17.Nh4= g6 18.Nf3 Ne4 19.Ne4 Qe4 20.Rfc1= Qc2 21.Rc2 Nf6 22.Ne5 Rc7 23.Rac1 Kg7 24.e4 Ne4 (< 24...de4 25.Nc4 Rec8 A) 26.Nd6?! Rc2 27.Nc8 Rb2= (27...Rc8? 28.Rc8 Bc8 29.d5+–); B) 26.Rc3+/–) ˝–˝. Rohde,Friedhelm – Trokenheim,Marek, corr SOK–93–96, 1994.

7.c4 b6 8.d4 Nbd7 9.cd5 ed5 10.Bd3 Bb7 11.Nc3 Qc7 12.0–0 0–0 13.Rc1 Rae8 14.Bf5 Re7 15.h3 Rfe8 16.Na4 c4 17.Bb1 Ne4 18.Be4 Re4 19.Nd2 R4e6 20.e4 (20.Nc3 Nf6+=) 20...de4 (20...Bf4 21.ed5 Bd5 22.Nc3–/+) 21.Rc4 (better is 21.Nc4!? Bh2 22.Kh1=) 21...Qd8–/+ 22.d5 Bd5 23.Rd4 Qg5 24.Qg4 Qg4 (better is 24...Qe5 25.g3 Nf6–+) 25.hg4= Bb7? (better is 25...Nf6 26.g5 Ng4 27.Rd5 e3 28.fe3 Ne3=) 26.Nc4+– Nc5 27.Nd6 (27.Nd6 Rd6 28.Rd6 Na4 29.Bd4+–) 1–0. carlog (1825) – arpad (1775), gameknot.com, 2009.

7.c4 dc4 8.Bc4 b6 9.0–0 Bb7 10.d3 Nbd7 11.Nbd2 0–0 12.e4 Qc7 13.Qc2 Ng4 (Now all is on h2) 14.h3 Nge5 15.Ne5 Be5 16.Be5 Ne5 17.f4 Nc4 18.Nc4 Rad8 19.Rae1 Rd4 20.e5 Rfd8 21.f5 Bd5 22.f6= Bc4 23.dc4 Rd2 24.Qe4 R8d4 25.Qe3 Qd8 26.Re2 Re2 27.Qe2 Rd3 28.fg7 Qd4 29.Kh1 Qc4 30.Qf2 Rd7 31.Kh2 Qc3 32.Qf6 Qa3 33.Rf3 Qa2 34.Rg3 Qd5 35.Qh4 Rd8 36.Qe7 Rc8 37.Qf6 c4 38.Rf3 Rc7 39.Rc3 Rc5 40.Rg3 c3?? 41.Qf7!! (41...Kf7 42.g8Q Ke7 43.Rg7#) 1–0. pierre – Hitman, ChessHere.com, 2005.

7.d3 0–0 8.Be2 =.

7.d3 b6 8.a4 (8.Be2 0–0=) 8...Bb7 9.Nbd2 0–0 10.g3 (10.Be2 Nbd7+=) 10...Nbd7 11.Bg2 Ng4 (11...e5 12.0–0+=) 12.h3 (12.0–0 e5=) 12...Nge5 (12...Ngf6 13.0–0+=) 13.0–0 (13.Ne5 Be5 14.Be5 Ne5=) 13...Rc8 (13...Qf6 14.Ne5 Be5 15.Be5 Qe5 16.Rc1=) 14.Ne5 Be5 15.Be5 Ne5 16.f4 Nd7 17.Qe2 Re8 18.e4 (18.c4 Rc7=) 18...Qf6 19.e5 Qg6 20.Kh2 Rc7 21.Qg4 (21.c4 dc4 22.Bb7 Rb7 23.Nc4 Rc7+=) 21...Qg4+= 22.hg4 f6 (22...Rf8 23.Rae1=) 23.ef6 Nf6 (23...gf6 24.c4=) 24.Bf3 (24.Kh3 e5 25.g5 Nd7+=) 24...e5+= 25.g5 e4 26.de4 (26.gf6!? ef3 A) worse is 27.Nf3 Re2 (worse is 27...gf6 28.Rae1 Re1 29.Re1=) 28.Kh3 gf6–/+; B) 27.Rae1 Re2 28.Re2 fe2 29.Re1 gf6 30.Re2=) 26...de4+= (worse is 26...Ne4 27.Be4 de4 28.Nc4=) 27.Be2 (27.gf6 ef3 28.Rae1 Re1 29.Re1 gf6=) 27…Nd5 ˝–˝. Ziese,Gerhard – Trokenheim,Marek, corr SOK–93–96, 1994.

7.d3 Nbd7 8.c4 0–0 9.Qc2 h6 (9...b6 10.Nbd2=) 10.Be2 b6 11.0–0 Bb7 12.Nbd2 Re8 13.Rfe1 Qc7 14.h3 Rac8 15.Rac1 Qb8 16.Qc3 Rcd8 17.cd5 ed5 18.d4 c4 19.Qc2 Rc8 20.Qa4 Ne4 21.Ne4 Re4 (worse is 21...de4 22.Nd2+/–) 22.Nd2 Re7 23.Nb1 f5 (23...Nf6 24.Nc3+=) 24.Qc2 Nf6 (24...f4 25.Bf3+=) 25.Nc3 (25.Qf5 Ne4 26.Bf3 Bh2 27.Kf1 Rf7+=) 25...Rf8 26.a4 (26.Qf5?? Ne4 27.Qf8 Qf8 28.Ne4 Re4–+ (28...de4?! 29.Bc4 Kh7 30.Rc2–+)) 26...Ne4 27.Bf3 Re6 28.g3 Rg6 (28...Qe8 29.Bg2=) 29.Re2 Qd8 30.Rce1 h5 31.Bh5 Rh6 32.Bf3 Rh3 33.Bg2 Rh6 34.Qc1 Qg5 35.Ba3 Ba3 36.Qa3 Kf7 37.Kf1 Rfh8 38.Rc2? Qg4 (38...Qg4 39.Ne2 Rh2–+) 0–1. Hoch,Hubertus (2320) – Hahner,Anton (2365), RSM2009 remoteschach.de, 2009.

7.Be2 0–0 8.0–0 Nbd7 9.c4 b6 (9...e5 10.d3+=) 10.Qc2 (10.Nc3 dc4 11.Qa4 Bb7=) 10...Bb7 11.d3 Qe7 12.Nbd2 e5 13.cd5 Nd5 (13...Bd5 14.Nc4=) 14.Nc4 Bc7 (14...Rad8 15.Nfd2=) 15.g3 (15.Rac1 Rad8=) 15...Rae8 (15...Rad8 16.e4 N5f6 17.Rac1=) 16.e4 N5f6 17.Nh4 Rd8 18.Nf5 Qe6 19.Nce3 (19.Rac1 Rfe8=) 19...Kh8 (19...Bc8 20.Rac1=) 20.Qc3 (20.f4 ef4 21.gf4 Rg8=) 20...Rfe8 (20...g6 21.Nh4=) 21.Bd1 Nf8 22.Bb3 Qd7 Attacking the backward pawn on d3 23.Rfd1 (23.f4 Kg8 24.Bc4 Ng6=) 23...Ne6+= (worse is 23...Qb5 24.Bf7 Ne6 25.Qc4+/–) 24.Qc4 Kg8 25.a4 (25.Nc2 Ng5 26.f4 ef4 27.Bf6 gf6–/+) 25...Nd4 26.Nd4 (26.h3 Nb3 27.Qb3 g6 28.Nh6 Kg7–/+) 26...ed4 (26...cd4 27.Nf5+=) 27.Nf5+= Ng4 (27...Bd5 28.Nh6 gh6 29.ed5 Re2+=) 28.Bc1 (better is 28.Qc2!?+=) 28...Ne5–/+ 29.Qc2 Bd6 (better is 29...Nf3!? 30.Kg2 Qf5 31.ef5 Ne1 32.Kh3 Nc2 33.Bc2 Bf3–+) 30.f4 (30.Nd6 Qd6 31.f4 Ng6=) 30...Ng6 (30...Nf3 31.Kf1 Bf8 32.Qg2+=) 31.Qa2 (31.Nd6 Qd6 32.Rf1 Qf6=) 31...Bc7 32.Bb2 (32.Re1 Rb8=) 32...Rf8+= 33.Rac1 Bb8 (33...Ne7 34.Ne7 Qe7 35.Qb1=) 34.Rf1 (34.Qb1 Rfe8=) 34...Ne7 35.Ne7 Qe7 36.Rce1 Kh8 (36...Rfe8 37.Bc1=) 37.Bc1 Rde8 ˝–˝. Jovanovic,Momir (1955) – Daurer,Walter (2085), Regionalliga SW, 2001.

7.Be5 0–0 8.d4 c4 9.Be2 a4 10.0–0 Be5 11.de5 Nfd7 12.Nc3 f6 13.e4 Nb6 14.Qd4 de4 15.Qe4 f5 (15...N8d7!?+/–) 16.Qf4+– Qc7 17.Rfd1 N8d7 18.Rd4 Nc5 19.Bc4 Nc4 20.Rc4 b6 21.Na4 Ra4 22.Ra4 Na4 23.Qa4 Bb7 24.Qb3 Bd5 25.c4 Qc4 26.Qc4 Bc4 27.a4 Ra8 28.Nd4 Rd8 29.Nc6 White prepares the advance a5 29...Ra8 30.a5 Bb5 31.Nd4 Bc4 32.a6 b5 (32...Ra7 33.f4=) 33.a7 b4 34.f4 b3 35.Kf2 Kf7 36.h4 Bd5 37.Nb5 Be4 38.Nd6 Ke7 39.Ne4 fe4 40.Ke3 Kd7 41.Ke4 b2 42.Rb1 Ra7 43.Rb2 Ra4 44.Kf3 Ra3 45.Kg4 Ra7 46.h5 Ke7 47.Rb8 Kf7 48.g3 h6 49.Rb6 Rc7 50.Rb5 Ra7 51.Rb8 Rc7 52.Kh4 Ra7 53.g4 Re7 (better is 53...Ke7+–) 54.g5 hg5 55.fg5 Re8 56.Re8 Ke8 57.h6 (57.h6 gh6 58.gh6+–) 1–0. marekt (2370) – poobeshtamil (2120), ICC, 2003.

7.Be5 Be5 8.Ne5 Qc7 9.Ng4 Nbd7 10.Be2 Ne4 11.f4 f5 12.Nf2 Nf2 13.Kf2 Nf6 14.Rf1 e5 15.Kg1 ef4 16.ef4 (16.Rf4 d4=) 16...0–0+= 17.Nc3 Be6 18.Na4 c4 19.Qe1 Rae8 20.Qf2 Bf7 21.Bd1 Qd6 22.Qd4 Re4 23.Qc5 Qc5 24.Nc5 Re7 25.d4 b6 26.Na4 Re4 27.c3 Re6 28.g3 Be8 29.Rb1 Kf7 30.Bf3 Ke7 31.Kg2 Kd8 32.Rfe1 Ne4 33.Re2 Bd7 34.Bh5 g6 35.Bf3 h6 36.Kg1 Kc7 37.Rg2 g5 38.Kf1 Rg6 39.Rbb2 Rg7 40.Kg1 Nf6 41.fg5 hg5 42.Rge2 Re8 43.Re8 Be8 44.Kf2 Rh7 0–1. marekt (1890) – vaha (1835), gameknot.com, 2014. (=1.Nf3 Nf6 2.b4 d5 3.a3 a5 4.b5 e6 5.e3 c5 6.Bb2 Bd6)

7.c4 0–0

8.Nc3 Nbd7 9.Qc2 Nb6 10.cd5 ed5 (worse is 10...Nfd5 11.Ne4+=) 11.Bd3 Re8 12.0–0 h6 (12...a4 13.Rfc1+=) 13.Ne2 (13.Be2 Be6=) 13...Bd7 14.a4 Ne4 15.Ng3 Qe7 16.Nh5 f6 17.Ng3 c4 18.Be4 de4 19.Nd4 g6 20.f3 f5 21.fe4 (21.Nde2 ef3 22.Rf3=) 21...fe4 (better is 21...Bg3!? 22.hg3 Qe4+=) 22.Nde2+= Kh7 (22...Rac8 23.Qc3 Be5 24.Qe5 Qe5 25.Be5 Re5 26.Rf6+=) 23.Rf6 (23.Bd4 Nd5 24.Ne4+–) 23...Nd5 (23...Bg4 24.Raf1 Rf8 25.Ne4 Bf5 26.R1f5 Nd7 27.Rf8 Rf8 28.Rf8 Qf8 29.Qc4 Be5 30.Be5 Ne5 31.Qc7 Qf7 32.Qe5 g5+–) 24.Ne4!+– Be5?? (24...Qe4 25.Rf7 Double attack (25.Rd6 Deflection; 25.Rd6 Overloading)) 25.Ng5!! (25.Qc4? Nf6 (25...Bb2 26.Qd5 Bf6 27.Nf6 Qf6 28.Qd7 Re7 29.Qd4+=) 26.Be5 Ne4 27.Qe4 Bf5–+) 25...hg5 (25...Kh8 26.Nf7 Qf7 27.Rf7+–) 26.Qg6 Kh8 27.Be5 Qe5 (27...Nf6 28.Bf6 Qf6 29.Qf6 Kh7 30.Qf7 Kh8+–) 28.Qh6 (28.Qh5 Kg8 29.Qf7 Kh8 30.Rh6) 28...Kg8 29.Rg6 Kf7 30.Qh7 Kf8 31.Rg8 1–0. Santasiere,Anthony – Reinfeld,Fred, New York, 1936. (=1.Nf3 Nf6 2.b4 e6 3.a3 d5 4.e3 a5 5.b5 c5 6.Bb2 Bd6 7.c4 0–0)

8.Nc3 Nbd7 9.d4 dc4 10.Bc4 b6 11.0–0 Bb7 12.d5 ed5 13.Nd5 Nd5 14.Bd5+= Bd5 15.Qd5 Nf6 16.Qf5 1–0. Mely – Reg_UK, ChessWorld.net, 2006.

8.Nc3 Nbd7 9.d4 cd4 10.Nd4 Qc7 (10...Ne5 11.cd5 ed5 12.Be2=) 11.cd5+= Bb4?? (better is 11...ed5 12.Rc1 Qb8+=) 12.ab4+– 1–0. Ranby,Hans – Zschalich,Arndt, corr SOK–90–59, 1990.

8.d4 b6 9.Be2 Bb7 10.0–0. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

8.d4 cd4 9.Qd4= b6 10.cd5 ed5 11.Bd3 Nbd7 12.0–0+= Nc5 13.Bc2 Bg4 14.Nbd2 Qd7= 15.h3 Bf3 16.Nf3 Qb5 17.Rab1 Qe2 18.Qd1 Qd1 19.Rfd1 Nce4 20.Rd5 Nd5 21.Be4+= Ne7 22.Ba8 Ra8 23.Rd1 Bc7 24.Rd7+/– Bd8 25.Nd4 Kf8 26.Nb5 f6 27.a4 Nc6 28.Ba3 Kg8 29.f4 (29...f5 30.g4+/–; 29.Nd4 Nd4 30.ed4 Rc8+/–) 1–0. Schulz,Hans_Juergen – Moeckel,Jean, TT–05 TSC, 2003.

8.d4 Nbd7 9.Nc3 =.

8.Be2 Nbd7 9.d4 b6 10.0–0 Bb7 11.Nbd2 Qc7 12.h3 Rac8 13.Qc2 (13.Rc1!?=) 13...cd4+= 14.Nd4 Qb8 15.N4f3 Rc7 16.Rfc1 Rfc8 17.Qd1 Qa8 18.cd5 Bd5 19.Rc7 Rc7 20.Rc1 Rc1 21.Qc1 Ne4 22.Ne4 Be4 23.Qc3 f6 24.Qd4 Qd5 (24...Bf3!? 25.Bf3 Qf8+=) 25.Bc4+/– Qd4 26.Be6 (26.Bd4?! Kf7 27.Nd2 Bc2=; 26.ed4?! Kf7=; worse is 26.Nd4 Bd5 27.Bd5 ed5=) 26...Kf8 27.Nd4 Nc5 28.Bf5 Nd3 29.Be4 Nb2 30.Bh7 Ba3 31.Kf1 Bb4 32.Nc2 Bc5 33.Ke2 Kf7 34.Be4 Ke6 35.g4 Ke5 36.Bg6 Bf8 37.Bf7 g5 38.Nd4 Bc5 39.Nb3 Na4 40.Kd3+/– Bb4 41.Nd4 Nc5 42.Kc4 Ne4 43.Nc6 Kd6 44.Nb4 ab4 45.f4 Nf2 46.fg5 fg5 47.h4?? Ng4 48.hg5 Ne5 49.Kb4 Nf7 50.g6 Nh6 51.g7 Kd5 52.Kc3 Kc5 53.Kb3 Kb5 54.e4 Kc5 55.e5 b5 56.e6 Ng8 57.Kc3 b4 58.Kb3 Kb5 59.Kb2 Kc4 60.Kc2 b3 61.Kb2 Kb4 62.Kb1 Kc3 63.Kc1 b2 64.Kb1 Ne7 (64...Ne7 65.g8R Ng8 66.Ka2 Ne7 67.Kb1 Nd5 68.Ka2 Kc2 69.Ka3 b1Q 70.e7 Qb3#) 0–1. Ehrlich,Hans Georg (1910) – Niermann,Rainer (1990), Muensterland Verbandsliga, 2004.

7.c4 Nbd7

8.a4 0–0 9.Be2 Qc7 10.Nc3 b6 11.Qc2 Bb7 12.0–0–0 Rad8 13.Ng5 h6 (13...Bh2?! 14.cd5 ed5 15.g3=) 14.h4 d4 15.Nce4 hg5 16.Nf6 Nf6 17.hg5 Be5?? (better is 17...Ne4 18.Bd3 f5 (18...Ng5?! 19.Bh7 Kh8 20.Be4 Kg8 21.Bh7 Kh8 22.Be4 Kg8 23.Bh7=) 19.gf6 Nf6–+ (19...Nf2 20.Bh7 Kh8 21.fg7 Qg7 22.Bf5 Nh1 23.Rh1 Kg8 24.Be6 Rf7 25.ed4 cd4 26.Rh4=)) 18.f4 Be4 19.Bd3 de3 (better is 19...Bd3 20.Qd3 de3 21.Be5 Qe5 22.fe5 Rd3 23.gf6 ed2 24.Rd2 Rfd8 25.Rd3 Rd3–/+) 20.Be4+/– (20.Be5?! Bd3 21.Bc7 Bc2 22.Kc2 Ng4 23.Bb6 Rd4+/–) 20...Bb2 21.Kb2 Ne4 22.Qe4 g6 (22...Rd2?? 23.Rd2 Rd8 24.Qe3+–) 23.de3 Rfe8 24.g4 Rd1 25.Rd1 Rd8 26.Kc2 Kg7 27.Rd8 Qd8 28.Qc6 Kg8 29.Qe4 Kg7 30.Qd3 Qa8 31.e4 Qb8 32.Qc3 Kg8 33.Qd2 Qc7 34.Kd1 Kf8 35.Ke2 Ke8 36.Ke3 e5 37.f5 Qd8 ˝–˝. Pisarsky,Georgy (2080) – Gulin,Yury (1955), Novosibirsk–ch Seniors, 2008.

8.d4 0–0 9.Nc3 =.

8.d4 0–0 9.Nbd2 b6 10.dc5 bc5 11.Bd3 Bb7 12.Qc2 h6 13.0–0 Ng4 14.cd5 ed5 15.Bh7 Kh8 16.Bf5 Ngf6 17.Bc3 Qe7 18.a4+/– c4 19.Rfd1 Ne5 20.Qb2 Rfe8 21.Rab1 g6 22.Bc2 Kh7 23.Ne5 Be5 24.Nf3 Bc3 25.Qc3 Ne4 26.Be4 Qe4 27.Rb2 Qe7 28.Rd4 Kg8 29.Rf4 f5 30.Nd4 Kh7 31.h4 h5 32.Nf3 Kg8 33.Ng5 Qe5 34.Rd4 Qe7 35.Nh3 Kh7 36.Nf4 Qe5 37.Rbd2 Re7 38.Qc2 Rc8 39.Nd5 Bd5 40.Rd5 Qe4 41.Rd7 Kg8 42.Qc3 Qh4 43.R7d4 Re4 44.Re4 Qe4 45.Rd7 (45...Qb1 46.Kh2 Qa1 47.Qa1 c3 48.Qa2 Kh8 49.Qf7 c2 50.Qg7; 45.Qa5?! c3 46.Rd8 Rd8 47.Qd8 Kf7 48.Qc7 Ke6 49.Qc3 Qa4 50.Qc6 Ke7 51.Qg6 Qb5 52.Qh5 Qd3+–) 1–0. marekt – Nokarookoff, ChessWorld.net, 2004.

8.d4 0–0 9.Nbd2 b6 10.Be2 Bb7 11.cd5 ed5 12.dc5 Nc5 13.0–0 Rc8 14.Rc1 Nfe4 15.g3 Re8 16.Nd4 Be5 17.Rc2 g6 18.Qb1 Nd2 19.Rd2 Ne4 20.Rc2 Rc2 21.Qc2 Qd7 22.Rc1 Rc8 23.Qb1 Bf6 24.Rc2 h5 25.h4 Rc5 26.Qc1 Qc7 27.Bd3 Qe5 28.Kg2 Bg7 (28...Bc8 29.Qb1 Rc2 30.Qc2+=) 29.a4= Rc2 30.Bc2 Nc5 31.Ba3 Qe7 32.Bd1 Be5 33.Bf3 Qc7 34.Qc2 Kg7 35.Ne2 Ne4 36.Qc7 Bc7 37.Bb2 f6 38.Nd4 Bc8 39.Nc6 Bf5 40.Bd1 Kf7 41.Nd4 Bh3 42.Kg1 Be5 43.f4 Bb8 44.Bb3 Nc5 45.Bc2 Bc7 46.Ba3 Bd7 47.Kg2 Bc8 48.Bd1 Ne4 49.Bb3 Bb7 50.f5 gf5 51.Nf5 Nd2 52.Bd1 d4 53.Kg1 d3 (53...de3 54.Bh5 Ke6 55.Bg4=) 54.Bh5 Kg8 55.Bd6 Bd8 56.Bf4 (56.Be7 Be7 57.Ne7 Kf8 58.Ng6 Kg7=) 56...Be4 (56...Bd5 57.Nd4=) 57.Nd6 (57.Nd4 Be7+=) 57...Be7+= 58.Ne4 Ne4 59.Kf1 Nd2 60.Ke1 Bb4 61.Kd1 Kg7 (61...Nc4 62.Bf3 Nb2 63.Kc1 Na4 64.Bc7=) 62.Kc1 Nc4 63.e4 Ba3 64.Kb1 Bb4 65.Bg4 Bd2 66.Bc7 Be3 67.Bf5 Bd4 68.Bf4 Nb2 69.Be3 ˝–˝. Ilyushchenko,YN – Simakov,VP (2285), Russian Championship, 2009. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.a3 a5 5.b5 c5 6.e3 Bd6)

8.d4 b6 9.Nc3 Bb7 =.

8.d4 b6 9.dc5 Nc5 10.cd5 ed5 11.Nc3 Bb7 12.Nd4 0–0 13.Nc6 Bc6 14.bc6 Be5 15.Bb5 Qd6 16.h3 Rfd8 17.0–0 Qe6 18.Rb1 Bc7 19.Ne2 Nfe4 20.Nf4 Bf4 21.ef4 Rac8 22.Re1 Qf5 (worse is 22...Rc6 23.Qd4 f6 24.f3+/– (worse is 24.Bc6 Qc6 25.Qe3 Nd6+=)) 23.Be5 f6 24.c7 fe5 25.cd8Q Rd8 26.Qc2 Qf4 27.Bc6 Nd3 Will f2 fall? 28.Bd5 Rd5 29.Qc8 Kf7 30.Qb7 Kf8 31.Qa8 Ke7 32.Qd5 Ne1 33.Qb7 Ke8 (better is 33...Kf8!? 34.Qb6 Ng2 35.Kg2 Qg5 36.Kh1 Qh4+/–) 34.Qb6+– (34.Qb6 Qf2 35.Qf2 Nf2 36.Re1+– (36.Kf2?! Nc2+–)) 1–0. Szczepanski,Zbigniew – Agasse_Lafont,Patrick (1705), OP–2011–0–01503, 2011. (=1.Nf3 Nf6 2.b4 e6 3.a3 a5 4.b5 d5 5.e3 c5 6.Bb2 Bd6 7.c4 Nbd7)

8.d4 b6 9.Ne5 0–0 10.Nd2 Bb7 11.Bd3 Qc7 12.Nd7= Qd7 13.dc5+= Bc5 14.Bf6 gf6 15.Qh5 f5= 16.Qg5 Kh8 17.Qf6 Kg8 18.Rg1 Qe7 19.Qb2 f6 20.Ke2 Kh8 21.g4 fg4 22.Rg4 Rg8 23.Rh4 Rg7 24.a4 dc4 25.Nc4=+ Rd8 26.Rh6 e5 27.Bf5 Bb4 28.Qc2 Qf7 29.Rc1= Qd5 30.e4 Qg8 31.Nb6 Rd2=+ 32.Qd2 Bd2 33.Kd2 Qa2 34.Rc2 Qa1 35.Rf6 Rg1–/+ 36.Rc4?? Qd1 (37.Kc3 Qe1 38.Kd3 Qb1 39.Rc2 Rd1 40.Ke2 Qc2 41.Kf3 Rg1 42.Rf8 Kg7 43.Rg8 Kg8 44.Bh7 Kh7 45.Ke3 Qc3 46.Ke2 Re1#; 36...Qb2 37.Kd3 Rd1 38.Ke3 Qb3 39.Rc3 Qc3 40.Ke2 Qd3#). Pilczuk,Andrzej (2140) – Laskowski,Janusz (2000), corr 1AMM Poland, 1992.

8.d4 Qc7 9.Nbd2 (9.cd5 ed5 10.dc5 Bc5+=) 9...b6 (9...0–0 10.cd5 Nd5 11.Nc4+=) 10.Bd3 (10.cd5 ed5 11.dc5 bc5=) 10...Bb7 (10...cd4 11.ed4 (11.Bd4? e5–+) 11...0–0 12.Rc1=) 11.Rc1 (11.cd5 Nd5 (worse is 11...Bd5 12.e4+/–) 12.Nc4 0–0+=) 11...0–0= 12.0–0 Rac8 13.cd5 ed5 (13...Nd5 14.Nc4=) 14.dc5+= bc5 15.Bf5 Rfe8 (15...Rb8 16.Qc2+=) 16.Rc2 (16.Bf6 gf6 17.Nd4+/–) 16...Ne5?? (16...Ne4 17.Ne4 de4 18.Rd2 ef3 19.Rd6+=) 17.Qa1 (17.Bc8 Bc8 18.Be5 Be5 19.Ne5 Re5+–) 17...Nf3 (17...Rb8!?+=) 18.Nf3+/– d4 19.Bd4 (19.Bc8 Qc8 20.Qd1 Qf5+/–) 19...Bf3 20.Bf6 (20.Bc8 Qc8 21.gf3 Qh3–+) 20...Bh2 21.Kh1 Be5 22.Qb1 Qb7 23.Rc4?? (better is 23.Kg1 Bg2 24.Be5 Bf1 25.f4=) 23...Bg2–+ (23...gf6 24.Bc8 (24.Bh7? Kg7 25.gf3 Qf3 26.Kg1 Qh3–+) 24...Rc8 25.Rg1–/+; 23...Bf6?! 24.gf3 Qf3 25.Kg1=) 24.Kg1 Bf6 (24...Bf1 25.Bh7 Kf8 26.Be4–+) 25.Bh7 (25.Bc8 Rc8 (25...Qc8?! 26.Kg2 Qb7 27.Kg1=) 26.Rfc1 Qf3–+) 25...Kh8 26.Rfc1 g6 27.Rf4 (27.Bg6 Rg8 28.Rg4 Rg6 29.Rg6–+) 27...Bh3 28.f3 (28.e4 Bg5 29.Rf3 Be6 30.Bg6 Bc1 31.Qa1 Kg8 32.Bf7 Bf7 33.Rg3 Bg6 34.Rg6 Kh7–+) 28...Bg5 29.Qb2 (29.Rcc4 Be6 30.Qb2 Kh7 31.Rh4 Bh6–+) 29...Kh7 30.Qh2 Bf4 (30...Bf4 31.Qf4 Kg7–+) 0–1. Santasiere,Anthony – Hesse,Herman, South Fallsburg, 1948. (=1.Nf3 Nf6 2.b4 e6 3.a3 a5 4.b5 c5 5.e3 d5 6.Bb2 Bd6 7.c4 Nbd7)

8.d4 cd4 9.Bd4 e5 10.Bb2 =.

8.cd5 ed5 9.d3 b6 (9...0–0 10.Be2=) 10.Be2= Qe7 (10...0–0 11.0–0=) 11.Nc3 Bb7 12.Qb3 (12.d4 c4=) 12...d4+= 13.Nd1 (13.ed4 Bf3 14.gf3 cd4+=) 13...Rd8 14.ed4 Bd5 (14...Bf3 15.gf3 cd4 16.Bd4+=) 15.Qa4 Bf3 16.gf3 Nd5 17.dc5 (17.Rg1 f6 18.Ne3 Ne3 19.fe3 Bh2=) 17...Nc5–/+ 18.Qc2 Nf4 19.Kf1 Qe2 (19...Be5!?–/+) 20.Qe2+= Ne2 21.Ke2 Bf4 (21...Bf8 22.Be5 Rd5 23.f4=) 22.Bg7+= Rg8 23.Bf6 (23.Bc3 Rd3 24.Re1 Rg6 (24...Bh2?! 25.Rh1 Bf4 26.Rh7=) 25.Kf1 Kf8–/+) 23...Rd3+= 24.Nb2 Rd2 (24...Rb3 25.a4 Rg6 26.Bh8+=) 25.Kf1= Rg6 26.Re1 Ne6 27.Bc3 (27.Bh8!?=) 27...Rc2+= 28.Nd1 Rg5 (28...Ra2!?–/+) 29.a4= Rd5 30.Bf6 Bd2 (30...Kd7 31.Nc3 Rd3 32.Ne4=) 31.Re5 (31.Re4!?=) 31...Re5+= 32.Be5 Nc5 33.Rg1 Na4 34.Rg8 (34.Rg4 Bb4+=) 34...Ke7–/+ 35.Bd4 Rc4 (35...Bf4 36.Ne3 Be3 37.Be3–/+) 36.Ne3+= Be3 (36...Rc1 37.Kg2+=) 37.fe3= Nc5 (37...Rc2 38.Kg1=) 38.Rb8 (38.Rc8 Rc2=) 38...Nd7 39.Rb7 Kd6 (39...a4 40.Ra7=) 40.Ke1 (40.Bb6!? a4 41.Bd8+=) ˝–˝. Diener,Rudolf – Sipos,Laszlo, corr ICCF EU–M–849, 1985.

6.Nf3 Nbd7

7.d3 b6 8.c4 Bb7 9.Nbd2 Bd6 10.Qc2 Qc7 11.Be2 0–0 12.Rg1 (12.0–0 h6+=) 12...Rad8 13.g4 Ne5 14.Nh4 Ng6 15.g5 Nh4 (15...Nd7 16.Nhf3–/+) 16.gf6+= g6 17.cd5 ed5 18.Rg4 Nf5 19.Nf3 Rfe8 20.Qd2? (20.d4 Qd7 21.Rg1 Rc8 22.dc5 bc5–/+) 20...Qd7 (better is 20...d4!? 21.e4 h5 22.Rg2–+) 21.Rg5 (better is 21.h3–/+) 21...d4–+ 22.e4 c4 23.Rf5 c3 (23...gf5?? 24.Qg5 Kh8 25.Qg7) 24.Qh6?? (better is 24.Bc3 dc3 25.Qc1–+) 24...Bf8 25.Qh4 (25.Qg5 cb2 26.Rb1 Qc8 27.Rb2 h6–+) 25...cb2 26.Rb1 gf5 (26...Qc7 27.Rb2 Qc1 28.Bd1 Qb2 29.Ne5 Qa3 30.Nf7 Qd3 31.Nh6 Bh6 32.f7 Kh8 33.Qf6 Bg7 34.Re5 Qe4 35.Kd2 Qe5 36.Qe5 Re5 37.Bg4–+) 27.Kd2 (27.Rb2 Qc7 28.Ng5–+) 27...Kh8 (better is 27...Qc7 28.Nd4 Kh8–+) 28.Ng5 h6 29.Bh5?? (29.Qh5 Kg8 30.Nf7 Qf7 31.Rg1 Bg7 32.Qh6 b1N 33.Ke1=) 29...hg5 30.Qg5 Kh7 31.Ke2 Bh6 32.Qh4 Be4! 0–1. Dominguez,JM (2345) – Mehmeti,Dritan (2400), 38th Olympiad, Dresden GER, 2008. (=1.Nf3 Nf6 2.b4 e6 3.a3 d5 4.e3 a5 5.b5 c5 6.Bb2 Nbd7)

7.d3 Bd6 8.c4 (8.Be2 e5=) 8...b6 9.Be2 0–0 10.Qa4 (10.0–0 Qc7=) 10...Re8 (10...Bb7 11.cd5 ed5 12.0–0=) 11.0–0 Bb7 12.Nbd2 Nf8 13.Rfd1 Qc7 (13...N8d7 14.Rac1=) 14.cd5 (14.Bf6 gf6 15.cd5 Bd5+=) 14...ed5 (14...Nd5 15.Ne4+=) 15.Bf6 gf6 16.Qg4 Ng6 17.d4 a4 Black plans c4 (17...c4 18.Rdc1+=) 18.Qf5 (18.dc5 bc5 19.Bd3 c4+=) 18...Qe7 (18...cd4 19.Nd4 Bh2 20.Kh1=) 19.Nb1+= c4 (19...Qe6 20.Qh5+=) 20.Rd2 (20.Nc3 Red8+=) 20...Qe6 21.Qh5 Kg7 22.Nc3 Ra5 (22...h6 23.g3+/–) 23.g3 Rg8 24.Rdd1 (24.Bd1 Ne7+=) 24...Kh8 (24...Ne7 25.Rdc1+=) 25.Ne1 (25.Rdc1 Kg7+/–) 25...Ne7+= 26.Qf3 Ra7 27.Ng2 Ng6 28.Re1 f5 29.Qh5 Ra5 30.Bf3 (30.Bd1 Qf6+/–) 30...Rg7 31.Nf4 d5 seems the pivot of the position. White gets in control 31...Nf4 32.ef4 Qg6 33.Re3 (33.Qh4 Rg8+/–) 33...Ba8 (33...Qh5!? 34.Bh5 Ba8+=) 34.Qh4+/– Rg8 35.Bd5 (35.Nd5 Rb5 36.Qf6 Qf6 37.Nf6 Bf4 38.Ng8 Be3 39.Ba8 Bd4+=) 35...Bd5+= 36.Nd5 Rb5 37.Nf6 Bf4? (better is 37...Rb8!?+=) 38.Ng8+– (38.Qf4?! Qf6 39.Rc1 Rc8=) 38...Be3 39.Ne7 Qe6 40.fe3 Qe3 41.Kg2 Threatening mate... how? 41...Qe4 42.Kh3 Kg7 43.d5 (43.d5 Qh4 44.Kh4+/–) 1–0. Taunus – marekt, remoteschach.de, 2007.

7.Bd3 =.

7.Be2 Bd6 8.0–0 0–0 9.d3 b6 (9...e5 10.Nbd2+=) 10.c4 Bb7 11.h3 dc4 (11...Qe7 12.Nc3=) 12.dc4 Qe7 13.Nc3 Rad8 14.Qc2 Ne5 15.Nd2 Bc7 16.Rad1 Rd7 17.f4 Ng6 18.Bf3 Bf3 19.Nf3 Rfd8 20.Rd7 Rd7 21.Ne4 Ne4 22.Qe4 Qd8 23.Qc2 Ne7 24.g4 f6 25.Rf2 Rd1 26.Kg2 Qd3 (26...Ng6 27.Qe4 Rd6 28.f5=) 27.Qd3 Rd3 28.Re2 Kf7 29.Kf2 Nc8 30.Rd2 ˝–˝. De Kruif,K (1950) – Purdon,C (2075), Guernsey GCI, 2011.

7.Be2 Bd6 8.0–0 0–0 9.d3 b6 10.Nbd2 Bb7 11.Re1 Qc7 12.Bf1 (12.c4 h6+=) 12...Ne5 13.g3 Nf3 14.Nf3 Nd7 (14...e5 15.Bh3+=) 15.Bg2 Ne5 16.Nd2 f5 17.f4 Nf7 (17...Ng4 18.c4=) 18.e4 (18.c4 Be7=) 18...de4 (18...c4!? 19.e5 c3 20.Bc3 Qc3 21.ed6 Nd6 22.Re6 Nb5=) 19.de4= c4 20.ef5 Bg2 21.Kg2 (worse is 21.fe6 Bb7 22.ef7 Rf7+=) 21...ef5 22.Qf3 Rac8 (22...Rfd8 23.Rad1+=) 23.Qc3+/– Nh6 24.Re6 Rf7?? (better is 24...Rf6 25.Rf6 gf6+/–) 25.Rh6+– Qe7 (25...Re7 26.Rh4 Re2 27.Kh3+–) 26.Nf3 Qe2 (26...Bb4 27.ab4 ab4 28.Qd4 Qe2 29.Kg1 Qf3 30.Rc6+–) 27.Kh3 Bb4 28.ab4 ab4 29.Qe5 (29.Qb4!? Qf3 30.Re6 c3+–) 29...Qf3 (29...Qe5 30.Ne5 (30.fe5?! gh6 31.Ra6 Re8+–) 30...gh6 31.Nf7 Kf7 32.Ra7 Ke8 33.Bf6+–) 30.Rc6! Rd8 (30...Rc6 31.Ra8 Mate attack) 31.Bd4 1–0. Sluka,Radek (2380) – Hudecek,Jan (2260), Morava–chT, 1999. (=1.Nf3 Nf6 2.b4 e6 3.a3 d5 4.Bb2 a5 5.b5 c5 6.e3 Nbd7)

7.Be2 Bd6 8.0–0 0–0 9.d3 e5 10.Nbd2 +=.

7.Be2 Bd6 8.d3 0–0 9.Nbd2 Re8 10.c4 b6 11.Qc2 Bb7 12.h3 Qc7 13.0–0 Rad8 14.Rad1 Ne5 15.Qb1 dc4 16.dc4 Nf3 17.Bf3 Bf3 18.Nf3 Nd7 19.Qe4 f6 20.g4 (20.Rd2!?+=) 20...Nf8= 21.Bc3 Be7 22.Rb1 Rd7 23.h4 Qb7 (better is 23...Red8!?+=) 24.Qb7+= Rb7 25.Rfd1 Rd8 26.Rd8 Bd8 27.Kf1 Rd7 28.Ke2 Kf7 29.g5 Bc7 30.gf6 gf6 31.h5 Rd8 32.Nd2 Nd7 33.Ne4 (33.f4 Rg8+=) 33...Be5 (33...f5 34.Ng5 Ke7 35.Rd1=) 34.Rd1+= Bc3 35.Nc3 Ke7 36.Rg1 Kf7 37.Rd1 Ke7 38.Rg1 Kf7 39.Rd1 (39.f4!?+=) Ke7= ˝–˝. Khodos,German L – Bednarski,Jacek B, WchT U26, 1964. (=1.Nf3 Nf6 2.b4 e6 3.a3 a5 4.b5 c5 5.Bb2 d5 6.e3 Nbd7)

6.Nf3 Be7

7.Be2 0–0 8.0–0 Ne4 (8...Nbd7 9.c4=) 9.d3 Bf6 10.Ne5 Nd6 11.a4 (11.c4 Nd7 12.Nd7 Bb2=) 11...Nd7 12.f4 (12.d4 Rb8=) 12...Nf5+= 13.Rf3 (13.Qd2 Ne5 14.Be5 Be5 15.fe5 d4–/+) 13…d4–/+ ˝–˝. Streit,Bodo – Techentin,Dieter, Landesliga West2, 2001.

7.Be2 0–0 8.c4 b6 9.0–0 Bb7 10.Qc2 Nbd7 11.d3 Qc7 12.Nbd2 Bd6 13.g3 Rae8 14.Rae1 Ne5 (14...h6 15.Bc3=) 15.Nh4 (15.cd5!? Bd5 16.Ne5 Be5 17.Be5 Qe5 18.e4=) 15...dc4 16.dc4 Ng6 (16...Neg4 17.Bf3=) 17.Ng2 (17.Ng6 fg6 18.Bf3 Rd8=) 17...e5 (17...Be5 18.Nf4+=) 18.e4= Bc8 (18...h5 19.h4=) 19.f3 (19.Rd1 Ng4+=) 19...Bh3 20.Rf2 Bg2 (20...h5!?=) 21.Rg2+= Nd7 (21...h5 22.h4+=) 22.Nf1+/– f6 (22...Re6 23.Ne3+/–) 23.Ne3 (23.Rd1 Re6+–) 23...Rf7+/– 24.Bf1 (24.Rd1!? Ndf8 25.Qd2+/–) 24...Ndf8+= 25.Nd5 Qb8 26.Rf2 Ne6 27.Bh3 Nd4 28.Qd2 Nf8 29.f4 Nfe6 30.Be6 (30.f5 Nc7+=) 30...Ne6 (30...Re6 31.f5 Re8 32.Qd1=) 31.f5 (31.fe5 fe5 32.Rf7 Kf7 33.Qd1+/–) 31...Nd4= 32.g4 Be7 33.Ref1 Bd8 34.h4 White prepares the advance g5 34...h6 35.Rg2 White intends g5 35...Qb7 36.Qd1 Rff8 (36...Rd7 37.g5 fg5 38.hg5 Bg5 39.Bc1 Bc1 40.Qc1+/–) 37.Bc1+= Kh8? (37...Qa7 38.g5 hg5 39.hg5 fg5 40.Bg5 Bg5 41.Rg5 Qb7+–) 38.g5+– Rg8?? (better is 38...Qf7+–) 39.Qh5 Ref8 (39...Nb3 40.gh6 gh6 41.Nf6 Rg2 42.Kg2 Bf6 43.Qe8 Kh7 44.Qg6 Kh8 45.Qf6 Qg7 46.Qg7 Kg7 47.Bh6 Kg8+–) 40.g6 Re8 41.Bh6! 1–0. Franic,M (2385) – Takac,Z (2200), It, Sisak CRO, 2000. (=1.Nf3 Nf6 2.b4 e6 3.a3 d5 4.Bb2 a5 5.b5 c5 6.e3 Be7)

7.c4 0–0

8.d4 b6 A) 9.Nc3 cd4 (9...Bb7 10.dc5 Bc5 11.cd5 Nd5 12.Qd3 Qe7 13.Nd5 Bd5 14.e4 Bb7; 9...Nbd7 10.cd5 Nd5 11.Nd5 ed5 12.dc5 Nc5 13.Be2 Bf5 14.Nd4 Qd7) 10.Qd4 dc4 11.Rd1 Qd4 12.Rd4 Nbd7 13.e4 Rd8 14.Rc4 Bb7; B) 9.dc5 Bc5 10.cd5 Nd5 11.Bd3 Bb7 12.0–0 Nd7 13.Nbd2 Rc8 14.Qe2 Be7.

8.d4 cd4 A) 9.Qd4 Nbd7 (9...b6 10.cd5 Bc5 11.Qd3 ed5 12.Be2 Be6 13.0–0 Nbd7 14.Rc1 Bd6; 9...dc4 10.Bc4 Qc7 11.Nbd2 Rd8 12.Qe5 Qe5 13.Be5 Ng4 14.Bc7 Rd7) 10.cd5 ed5 11.Nbd2 Bc5 12.Qh4 Be7 13.Qf4 Nc5 14.Rd1 Nfe4; B) 9.Bd4 Nbd7 (9...dc4 10.Bc4 Nbd7 11.0–0 Bd6 12.Qd2 e5 13.Bb2 Nb6 14.Ba2 Ne4) 10.cd5 Nd5 11.Bd3 b6 12.Qc2 N5f6 13.e4 Bc5 14.Bb2 Bb7.

8.d4 Nbd7 9.Nbd2 Ne4 (9...Bd6 10.cd5 ed5 11.dc5 Nc5 12.Be2= Qe7 13.0–0 Bg4 14.h3 Bf5; 9...b6 10.Bd3 cd4 11.Bd4 Bb7 12.cd5 Nc5 13.Bc2 Nd5 14.0–0 Rc8; 9...cd4 10.Bd4 Bc5 11.cd5 Bd4 12.Nd4 Nd5 13.Rc1 e5 14.N4f3 N5f6; 9...Re8 10.cd5 ed5 11.dc5 Nc5 12.Be2 Bf5 13.0–0 Rc8 14.Rc1 Nd3; 9...dc4 10.Nc4 Qc7 11.Rc1 Rd8 12.Bd3 cd4 13.Bd4 Nc5 14.0–0 Rd5) 10.Bd3 (10.Be2 Nd2 11.Qd2 dc4 12.dc5 Nc5 13.Bc4 Qe8 14.Be5 Bd7) 10...f5 (10...Nd2 A) worse is 11.Kd2 cd4 (11...dc4 12.Bc4 cd4 13.ed4 b6 14.Ke2 Bb7) 12.ed4 dc4 13.Bc4 b6–/+ 14.Ke2 Bb7; B) 11.Qd2 dc4 12.Bc4= Nb6 13.Be2 c4 14.Bc3 a4) 11.Qb3 (11.0–0 b6+= 12.cd5 ed5 13.dc5 Ndc5 14.Qc2 Nd3) 11...a4 (11...Ndf6 12.0–0 b6 13.Rad1 Bb7 14.cd5 Bd5) 12.Qc2 (12.Qa2 Ndf6 13.0–0 Qa5 14.Rad1 Bd7) 12...b6 13.0–0 (worse is 13.Ne4 fe4 14.Be4 de4 15.Qe4 Ra7 16.Qe6 Kh8+=) 13...Bb7 14.Ne1 (14.Rac1 cd4 15.ed4 Bd6=) 14...Bf6 (14...Bd6 15.Nef3=; 14...cd4=) 15.f3 (15.Rc1 Qe7=) 15...Nd2 16.Qd2 Kh8 17.cd5 (17.Rc1 e5=) 17...Bd5 18.e4 fe4 (18...Bb3 19.ef5 ef5 20.Nc2+=) 19.fe4 Bb3 20.e5 Bg5 (20...Be7 21.Rf8 Nf8 22.Nf3=) 21.Rf8 Nf8 22.Qf2 Rc8 (22...Be7 23.Nc2=) 23.Nf3 Bh6 (23...Be7 24.Rc1=) 24.Bc1+= cd4 (24...Bc1!? 25.Rc1 Bd5 26.dc5 Nd7=) 25.Bh6+/– gh6 26.Nd4 Qg5 (26...Bd5 27.Re1+/–) 27.Nc6 (27.Nf3!? Qd8 28.Be4+/–) 27...Bd5+= 28.h4 (28.Qf6!? Qf6 29.ef6+=) 28...Qg7= 29.Rc1 Nd7 The isolani on e5 becomes a target 30.Re1 (30.Rc2 Bc6 31.bc6 Ne5=) 30...Rf8 31.Qd2 Nc5 32.Bb1 Qg3 33.Re3 (33.Re2 Qh4 (33...Qa3? 34.Qh6 Rf7 35.Bh7+–) 34.Rf2 Rf2 35.Qf2 Qf2 36.Kf2 Bc4+=) 33...Qf4 (33...Qh4 34.Qc2 Rf5 35.Qd2–/+) 34.Qe1+= Rg8 35.Re2 Rg3 36.Qf1 (better is 36.Rf2!? Qh4 37.Qf1+=) 36...Qf1–+ 37.Kf1 Bc4 38.Kf2 Rg2 39.Kg2 Be2 40.Nd4 Bc4 41.Kf3 (41.Kg3 Nb3 42.Ba2 Kg7–/+) 41...Kg7 42.Ke3 Nb3 43.Ba2 (43.Bc2 Kf7+=) 43...Kf7 44.Bb3+= ab3 45.Kd2 Kg6 46.Kc3 Bd5 47.a4 Kh5 48.Nb3 Kh4 49.a5 ba5 50.Na5+= Kg3 51.Nc6 h5–+ 52.Ne7 Bb7 53.b6?? h4 54.Nf5 ef5 55.e6 h3 56.e7 h2 57.e8Q h1Q 58.Qe5 f4 59.Qg7 Kh2 60.Qh7= Kg1 61.Qb1 Kf2 62.Qc2 Kg3 63.Qg6 Kf3 64.Qd3 Kg2 65.Qg6 Kf1 66.Qd3 Kg1 67.Qb1 Kg2 68.Qg6 Kh3 69.Qh5 Kg3 70.Qg6 Kh2 71.Qh7 Kg1 72.Qb1 Kf2 73.Qc2 Kg1 74.Qb1 ˝–˝. Vukovic,Ljubomir (1960) – Vlahovic,Svetozar (2185), Zimski Winter Open, 2005.

8.d4 Nbd7 9.cd5 Nd5 (9...ed5 10.dc5 Nc5 11.Be2 Bg4 12.0–0 Rc8 13.Nbd2 Nce4 14.Nd4 Nd2) 10.Bd3 b6 11.0–0 Bb7 12.Qc2 f5 13.Bc4 Rc8 14.Rd1 cd4.

8.d4 Nbd7 9.Be2 dc4 (9...b6 10.Ne5 Bb7 11.Nc6 Bc6 12.bc6 Nb8 13.cd5 ed5 14.dc5 bc5; 9...cd4 10.Bd4 Bd6 11.cd5 Nd5 12.0–0 b6 13.Nbd2 Bb7 14.Nc4 Bc5) 10.0–0 Nb6 11.Nbd2 Bd7 12.dc5 Bc5 13.a4 Qe7 14.Nc4 Nc4.

8.Be2 dc4 A) 9.Bc4 Nbd7 (9...Qd6 10.0–0 Nbd7 11.d4 Rd8 12.dc5 Qc5 13.Qe2 b6 14.Rc1 Bb7; 9...b6 10.d4 Bb7 11.0–0 Nbd7 12.Qe2 cd4 13.Nd4 Rc8 14.Nd2 Bd6) 10.0–0 Nb6 11.Be2 Bd7 12.Qc2 Rc8 13.Be5 Nfd5 14.e4 Nf6; B) 9.Qc2 b6 (9...Nbd7 10.Bc4 b6 11.Nc3 Bb7 12.e4 Bd6 13.0–0 Ne5 14.Be2 Nf3; 9...Bd6 10.Bc4 Qe7 11.0–0 Nbd7 12.d3 e5 13.Nbd2 Nb6 14.Rae1 Bg4; 9...Qd6 10.Bc4 Nbd7 11.0–0 b6 12.e4 Qf4 13.Nc3 Rd8 14.Rad1 Bb7; 9...c3 10.Nc3 Bd6 11.0–0 Nbd7 12.Ng5 Qc7 13.f4 h6 14.Nge4 Rd8) 10.Nc3 Bb7 11.e4 Nbd7 12.0–0 Bd6 13.Bc4 Ne5 14.Be2 Nf3; C) 9.Nc3 Bd6 (9...Nbd7 10.Bc4 e5 11.d3 Bd6 12.0–0 Nb6 13.Bb3 Bg4 14.h3 Bf5; 9...Qd6 10.Bc4 Nbd7 11.d4 Nb6 12.Be2 Rd8 13.Na4 cd4 14.Bd4 Na4) 10.Bc4 e5 11.d3 Nbd7 12.Na4 b6 13.0–0 Bb7 14.Nc3 Rc8; D) 9.0–0 Nbd7 (9...b6 10.Bc4 Bb7 11.d4 Nbd7 12.Nbd2 Rc8 13.Rc1 cd4 14.Nd4 Nc5) 10.Bc4 Nb6 11.Be2 Bd7 12.Qc2 Rc8 13.Be5 Nfd5 14.e4 Nf6.

8.Be2 Qd6 A1) 9.0–0 Nbd7 (9...Rd8 10.Be5 Qd7 11.d4 dc4 12.Qa4 Ng4 13.Rd1 Ne5 14.de5 Qc7; 9...dc4 10.Ne5 c3 11.Bc3 Nd5 12.Nc4 Qd8 13.Qa4 Nd7 14.Rd1 N7b6) 10.d4 Rd8 11.cd5 Qd5 12.Nc3 Qf5 13.Rc1 b6 14.dc5 Nc5; B) 9.d4 Nbd7 10.cd5 Nd5 11.Nbd2 b6 12.Rc1 Bb7 13.Nc4 Qc7 14.0–0 Rac8.

8.Be2 Nbd7 9.0–0 b6 (9...dc4 10.Bc4 b6 11.Qe2 Bb7 12.d4 Rc8 13.Nbd2 cd4 14.Nd4 Bd6; 9...Qc7 10.d4 dc4 11.Bc4 Rd8 12.Qe2 b6 13.Nbd2 cd4 14.Nd4 Bb7; 9...Bd6 10.d4 Qe7 11.cd5 Nd5 12.e4 Nf4 13.e5 Bc7 14.Bc4 Rd8; 9...Qb6 10.d4 dc4 11.Bc4 Rd8 12.Qc2 cd4 13.Bd4 Bc5 14.Nc3 Bd4) 10.d3 Bd6 11.Nc3 Bb7 12.Qc2 Qc7 13.cd5 ed5 14.d4 Rfe8.

8.Be2 Nbd7 9.a4 Nb6 10.Na3 Ne4 11.d3 Nd6 12.Qc2 dc4 13.Nc4 Ndc4 14.dc4 Bf6 15.Rd1 Qe7 16.Ne5 Qc7 17.f4 Bd7 18.Bd3 h6 19.0–0 (worse is 19.Nd7 Nd7 20.0–0 Bb2 21.Qb2 Rad8+=) 19...Rad8 20.Rf3 (worse is 20.Nd7 Nd7 21.Bh7 Kh8=) 20...Bc8 21.Rg3 Qe7 (21...Kh8 22.Bc3+/–) 22.Ng4 (better is 22.Bc3!?+/–) 22...Bb2+= 23.Nh6 (23.Qb2 e5 24.Ne5 Qf6+/–) 23...Kh8= 24.Qb2 e5 25.Ng4 Bg4 26.Rg4 f5 Black prepares e4 27.Rg3 e4 28.Be2 Rd1 29.Bd1 Qf6 (29...Nc4?? 30.Rh3 Kg8 31.Bb3+–) 30.Rh3 Kg8 31.Qe2 Qc3 32.g4 (better is 32.Kf2 Nc4 33.Qh5=) 32...Rd8–/+ (32...Qc4?? 33.Qc4 Nc4 34.Bb3+–; 32...Nc4?! 33.gf5 Rf5 34.Kf2+=) 33.Qf1 (33.Kf1!? Qc1 34.Ke1 fg4 35.Rg3 Qc3 36.Kf1 Nc4 37.Qe1 Rd1 38.Qd1 Ne3 39.Re3 Qe3 40.Qd8 Kh7 41.Qh4 Kg6 42.Qg4 Kf6 43.Qg5 Kf7 44.Qd5 Ke7 45.Qb7 Kf6 46.Qc6 Kf5 47.Qd7 Kf4 48.Qf7 Ke5 49.Qg7 Ke6 50.Qg8 Ke7 51.Qg3 Qc1 52.Ke2 Qc4 53.Ke3 Qd4 54.Kf4 e3 55.Kf3+=) 33...Nc4–+ (33...Qc4?? 34.Qc4 Nc4 35.Bb3+–) 34.Be2 Nd2?? (34...Ne3 35.Kh1 Rd2–+ (35...Nf1?! 36.Rc3 Nd2 37.Rc5+=; 35...fg4?! 36.Bg4 Rd3 37.Be6 Kf8 38.Qg1–+)) 35.Qf2–/+ Qc1 36.Kg2 Nf3 37.Qf1 (37.gf5 Rd2 38.Rf3 ef3 39.Kf3 Qc2+=) 37...Qd2 (37...Qe3 38.Bf3 Rd2 39.Kg3 ef3 40.Qc4 Kf8 41.gf5 Qg1 42.Kh4–+) 38.Kh1 (38.gf5 Qe3 39.Bf3 Rd2 40.Kh1 ef3 41.Rf3 Qd4–+) 38...fg4–/+ 39.Rh5 Qc2 0–1. Godoy,Carlos – Hernandez Penna,Sabina, Buenos Aires ARG, 1995. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.a3 a5 5.b5 c5 6.e3 Be7)

8.Be2 Nbd7 9.d3 dc4 (9...Qc7 10.cd5 ed5 11.0–0 Re8 12.Qa4 Nb6 13.Qc2 Bf5 14.Nc3 Bd6; 9...Bd6 10.0–0 Qc7 11.Nbd2 b6 12.Qc2 Rd8 13.cd5 ed5 14.a4 Bb7; 9...b6 10.0–0 Bb7 11.Qc2 Bd6 12.Nbd2 Qe7 13.Rac1 e5 14.cd5 Bd5; 9...Re8 10.0–0 Qc7 11.Nbd2 Bd6 12.Qc2 b6 13.Rac1 d4 14.ed4 cd4) 10.dc4 Qb6 11.0–0 Rd8 12.Qa4 Bd6 13.Nc3 Qc7 14.Rad1 Ng4.

8.Be2 Nbd7 9.d4 dc4 (9...b6 10.Ne5 Bb7 11.Nc6 Bc6 12.bc6 Nb8 13.cd5 ed5 14.dc5 bc5) 10.0–0 Nb6 11.Nbd2 Bd7 12.dc5 Bc5 13.a4 Qe7 14.Nc4 Nc4.

5.b5 c6

6.c4 b6 7.bc6 Nc6 8.cd5 Nd5 9.Nf3 Bd6 (9...Bb7 10.Bb5=) 10.Bb5 (better is 10.Bg7!? Rg8 11.Qc2+–) 10...Bd7+= 11.Qa4 Rc8 12.Nc3 Nf6 13.0–0 0–0 14.Rac1 Ne5 15.Ne5 Be5 16.Bd7 Qd7 17.Qd7 Nd7 18.Na4 (18.d4 Bb8=) 18...Bb2 19.Nb2 Rc5 (19...b5 20.Rc3+=) 20.d4 Rb5 21.Rb1 Nf6 (21...Rc8!?=) 22.Rfc1 Ne4 (22...Nd5 23.e4 Nf4 24.Kf1=) 23.Nd3 (23.Nc4!? Rb1 24.Rb1+/–) 23...Rb1+= 24.Rb1 Rb8 25.f3 Nd2 26.Rb5 Nc4 27.a4 Nd6 (better is 27...Ne3!? 28.Ne5 Nd5–/+) 28.Rb1 b5 29.ab5 Rb5 (worse is 29...Nb5 30.Ne5+/–) 30.Rb5 Nb5 31.Nc5 Nc3 32.Kf2 a4 33.Ke1 a3 34.Kd2 a2 35.Nb3 Nd5 36.e4 Nb4 (36...Nf4!?+=) 37.Na1 (37.Kc3 Nc6+/–) 37...Kf8 38.Kc3 Na6 39.Kb3 Nc7 40.Ka2 Nb5 41.Nc2 Nc3 42.Kb3 Ne2 43.Kc4 Nf4 44.Ne1 Ke7 45.g3 Ne2 46.Kd3 Ng1 47.Ke3 Kf6? (47...Nh3 48.Nd3+–) 48.f4 (48.Kf2 Nh3 49.Kg2 Ng5+–) 48...g5? (better is 48...Nh3+–) 49.fg5 Kg5 50.Nf3 Nf3 51.Kf3 h5 (51...f5 52.ef5 Kf5 53.g4 Kf6+–) 52.h4 Kg6 53.Kf4 f6 54.d5 e5 55.Ke3 Kf7 56.Kd3 (better is 56.Kf3 Kg6+–) 56...Ke7 57.Kc4 (better is 57.Ke2 Kd6+–) 57...Kd8 (57...Kd6 58.Kc3 f5+–) 58.Kc5 Kc7 59.d6 Kd7 60.Kd5 Kd8 61.Ke6 Ke8 62.Kf6 1–0. Fournier,Frederic – catrauca1, Active, 2009.

6.c4 Qb6 7.Nc3 cb5 8.Nb5 Bd7 9.Bd4 Bc5 10.Bc5 Qc5 11.d4 Qc6 12.cd5 Nd5 (12...ed5?? 13.Rc1 Qb6 14.Nc7 Ke7 15.Na8+–) 13.Rc1 Qb6 14.e4 Bb5 15.Bb5 (15.ed5?! Bf1 16.Kf1 0–0 17.de6 Qe6+=) 15...Ke7 16.ed5 Qb5 17.Rc5 Qb6 18.de6 f6 (18...fe6!? 19.Nf3 Nd7+/–) 19.Ne2+– Ke6 (better is 19...Qe6!? 20.0–0 Qd6+–) 20.Nf4 Kf7?? (20...Kd6 21.0–0 Na6+–) 21.Qh5 g6 22.Qd5 Kg7 (22...Ke7 23.Kd2 Nd7 24.Re1 Ne5 25.Rb5 Qb5 26.Qb5+–) 23.Ne6 Kh6 24.Qe4 g5 (24...Qe6 25.Qe6 Na6 26.Qh3 Kg7 27.Qd7 Kh6+–) 25.h4 (25.h4 Qe6 26.Qe6 Kg7 27.Qe7 Kh6 28.hg5 Kg6 29.Qf6) 1–0. Steffens,Olaf (2200) – Jones,Steven A (2030), Penarth WLS, 2013.

6.c4 Qb6 7.Nc3 Bd7 8.Na4 Qd8 9.Nf3 (9.Bd4!?+=) 9...dc4= 10.bc6 (better is 10.Bf6!? gf6 11.b6=) 10...Bc6–/+ (10...Nc6?! 11.Bc4 Na7 12.Bf6 gf6 13.Nb2=) 11.Bd4 b5 (11...b5 12.Nb2 a4–/+). Kreuzer,Uwe – Grabowitzki, Vereinsmeisterschaft, 1992.

6.c4 Qb6 7.Bd4 Bc5 (7...Qd8!?=) 8.Bf6+= gf6 9.d4 Be7 10.c5 Qd8 11.Qc2 f5 12.Nf3 Bf6 13.Nbd2 Qe7 14.Rb1 0–0 15.Ne5 (better is 15.Be2!?+/–) 15...Be5= 16.de5 Nd7 17.f4 (17.bc6 bc6 18.Nf3 Nc5=) 17...Kh8 (better is 17...Nc5!? 18.Rc1 Nd7 19.bc6 bc6 20.Qc6 Qa3=) 18.Rc1+= Rg8 19.Nf3 f6 20.Qc3 Qg7 21.ef6 Qf6 22.Ng5 (22.Rg1 cb5 23.Bb5 Qc3 24.Rc3 Nf6+/–) 22...Qc3 23.Rc3 Nf6 24.g3 Bd7 25.b6 Rg7 26.Bd3 Ng4 27.Be2 Nh6 28.Bh5 e5 29.Kd2 Be8 30.Bd1 Bf7 31.Rg1 e4 32.Rc2 Ng8 33.g4 fg4 34.Bg4 Nf6 35.Nf7 Rf7 36.Be6 Re7 37.f5 Rf8 38.Kc3 Nh5 39.Rcg2 Ng7 40.Kd4 (40.Bc8 Nh5 (40...Rc8? 41.f6 Nf5 42.fe7 Ne7 43.Rf2+–; 40...Nf5? 41.Bf5 h6 42.Bg6+–) 41.Rg5 Nf4+=) 40...Ne6 (40...Nf5? 41.Bf5 Ree8 42.Rg5+–) 41.fe6 Rfe8 42.Rf2 Re6 43.Rf7 R6e7 44.Rgg7 Rf7 45.Rf7 Rb8 46.Ke5 (46.Re7 Kg8+–) 46...Kg8? (better is 46...Re8!? 47.Kf5 d4+=) 47.Re7+– Rd8 48.Rb7 d4 49.ed4 e3? (49...Re8 50.Kf6 Rf8 51.Kg5 Re8=) 50.Kf6 (better is 50.Re7+–) 50...Rf8–+ 51.Ke5 (51.Kg5 Re8 52.Kh6 Re6 53.Kh5 e2 54.Rb8 Kg7–+) 51...e2 52.Kd6 (52.Rd7 e1Q 53.Kd6 Qe4–+) 52...e1Q (52...Rf6!? 53.Kc7 e1Q 54.Rb8 Kg7 55.Rd8 Rf7 56.Rd7 Rd7 57.Kd7–+) 53.Re7 Qh4 0–1. Recio,Luis – Vermaas,Fred, IECG, 2004.

6.c4 Bd7 7.Nc3 Be7 8.d4 0–0 9.Nf3 dc4 10.Bc4 cb5 11.Nb5 Nc6 12.0–0 Na7 13.Na7 Ra7 14.Ne5 b5 15.Bd3 Be8 16.Qe2 b4 17.ab4 Bb4 18.Rfc1 Qa8 19.Qc2 Qd5 20.Ba3 Ba3 21.Ra3 Bb5 22.Bb5 Qb5 23.Qd1 Nd5 24.Nc6 Raa8 25.Rc5 Qb6 26.Raa5 Ra5 27.Na5 Ra8 28.Qc1 g6 29.Nc4 Qb4 30.Nd6 Ra2 31.Rc8 Kg7 32.Ne8 Kh6? (better is 32...Kg8+/–) 33.e4+– Qd2 34.ed5 ed5 35.h3 g5 (35...Qc1 36.Rc1 Rd2+–) 36.Rc6 Kh5 (36...f6 37.Rf6 Kh5 38.Ng7 Kh4 39.Rh6) 37.Qd2 (37.Ng7 Kh4 38.Rh6) 37...Rd2 (37...Ra1 38.Kh2 Rh1 39.Kh1 f6 40.Qe2 g4 41.Qg4 Kh6 42.Rf6) 38.Ng7 Kh4 39.Rh6 1–0. Fournier,Frederic (1635) – AndrisR (1740), rated blitz game, 2002.

6.c4 Bd7 7.Nf3 Bd6 8.d4 0–0 9.c5 Be7 10.b6 Na6 11.Ba6 (11.Bd3!?+=) 11...Ra6= 12.Bc3 Ra8 13.Qd2 Ne4 14.Qc2 Bf6 15.Nfd2 Nf2?? (Better is 15...Nc3 16.Qc3 Qe8=) 16.Kf2+– Bh4 17.g3 Qf6? (17...Bg5 18.Nf3+–) 18.Kg2 Bg5 19.Rf1 Qh6 20.e4 e5 21.Nf3?? Qh3 22.Kh1?? de4 23.Ng5?? Qg4 24.Nd2 Qg5 25.Qe4 ed4 26.Qd4 Rad8 27.Qf4 Qd5 28.Qf3 Qg5? 29.Qf4 Qg6?? 30.Nf3 Bh3 31.Rfd1 Rd1 32.Rd1+– Qc2 33.Qd2 Qe4 34.Qf4?? Qe2?? 35.Rd2?? Qf1 36.Ng1+– Qc1 37.Qd4 Qf1 38.Qg7 1–0. slavisa10 – han0, Live Game Caissa's Web, 2004.

6.bc6 bc6 7.Nf3 Be7 8.d4 0–0 9.Bd3 c5 10.dc5 Bc5 11.c4 Ba6 12.cd5 Bd3 (worse is 12...Nd5 13.Bh7 Kh7 14.Qc2 Kh8 15.Qc5+/–) 13.Qd3 Nd5 14.Nc3 Ne3 (14...Nf6!? 15.Rd1 Qd3 16.Rd3 Nc6=) 15.Qd8+/– Nc2 16.Kd2 Rd8 17.Kc2 Bf2 18.Rhd1 Nc6 19.Rd8 Rd8 20.Rd1 Rd1 21.Nd1 Bb6 22.Nc3 f6 23.Na4 Bc7 24.Nc5 e5 25.h3 Kf7 26.Nd2 Bb6 27.Ncb3 Ke6 28.Nc4 a4 (better is 28...Bc7!?+/–) 29.Nb6+– ab3 30.Kb3 h5 31.a4 g5 32.Bc3 e4 33.Nc4 White plans a5 (33.Kc4!? f5+–) 33...f5 Black prepares the advance g4 34.a5 f4 35.Nd2 e3 36.Nf3 g4 37.hg4 hg4 38.Nd4 Nd4+= 39.Bd4 Kd5?? 40.Bc3?? f3–+ 41.gf3 gf3 42.a6 Kc6 43.a7 Kb7 44.Bd4 f2 45.Be3 f1Q 46.Kc2 Qe2 47.Bd2 Ka7 48.Kc3 Ka6 49.Kc2 Kb5 50.Kc3 Qc4 51.Kb2 Qd3 52.Kc1 Kc4 53.Bh6 Qe2 54.Bd2 Kb3 (54...Kb3 55.Kb1 Qd3 56.Ka1 Qd4 57.Bc3 Qd1 mate) 0–1. Fournier,Frederic (1765) – witals (1805), ChessOK.com, 2012.

6.bc6 Nc6 7.Nf3 Bd6 8.Bb5 Bd7 9.0–0 0–0 10.c4 dc4 11.Bc4 Qb6 12.Qc1 Ne7 13.Bd4 Qc7 14.Be2 Qc1 15.Rc1 Nc6 16.Bb2 Rac8 17.Nc3 e5 18.d3 Be6 19.Nb5 Be7? 20.Ne5+– Ne5 21.Be5 Rc1 22.Rc1 Ba3? 23.Na3 Rc8 24.Rc8 Bc8 25.d4 Nd5 26.Bf3 Nc3 27.d5 Nb1 28.Nb1 1–0. Fournier,Frederic – eduardoramon, Owl21.com, 2008.

6.bc6 Nc6 7.Nf3 Bd6 8.c4 0–0 9.cd5 Nd5 10.Nc3 Nc3 11.Bc3 b6 12.Be2 Ba6 13.0–0 Be2 14.Qe2 Rc8 15.Rfc1 Qe7 16.Bb2 Rfd8 17.d4 e5 18.de5 Ne5 19.Ne5 Be5 20.Be5 Qe5 21.Qe1 Qd6 22.Rc8 Rc8 ˝–˝. Fournier,Frederic – Cb_account, Partie evaluee, 0m + 4s, 2008.

6.Nf3 Bd7 7.a4 Bd6 8.Bd3 0–0 9.0–0 Re8 10.Ne5 cb5 11.ab5 Qb6 12.Bd4 Bc5 13.Bc5 Qc5 14.Nc3 d4 15.ed4 Qd4 16.Qe2 Rc8 17.Ra4 Qd6 18.Qe3. guest – guest (2230), ICC, 2004.

6.Nf3 Nbd7 7.Nc3 e5 (7...Bd6 8.Be2 c5 9.0–0 0–0 10.d4 c4 11.a4 Qe7 12.e4 de4+=) 8.Be2 Bd6 9.0–0 0–0 10.Rb1 c5 11.d3 Qc7 12.Nd2 Nb6 +=.

6.Nf3 Nbd7 7.c4 Bd6 8.d4 dc4 9.bc6 bc6 10.Nbd2 Nb6 11.Nc4 Nc4 12.Bc4 Ba6 =.

6.c4 a4

7.Nc3 Qa5 8.Rc1 Bd6 =.

7.Nc3 Qa5 8.Nf3 Nbd7 9.bc6 bc6 10.cd5 cd5 (10...ed5 11.Rc1+=) 11.Bb5+/– The pressure on the isolated pawn grows 11...Rb8 12.Rb1 (12.Nd4 Qa8+/–) 12...Ne4 (12...Ba6 13.Ba6 Qa6 14.Qe2=) 13.Ba4 (13.Qa4 Qa4 14.Ba4 Nc3 15.dc3 Ba3 16.Ba3 Rb1 17.Bd1 Ba6–+) 13...Rb2 (better is 13...Nec5!? 14.Bd7 Bd7+=) 14.Bd7 Bd7 15.Rb2 Bd6 (15...Nc3 16.dc3 Qc3 17.Qd2 Qa3 18.Rb8 Ke7 19.0–0+–) 16.Qb3 (16.Qc2 Nc3 17.Qc3 Qc3 18.dc3 Ke7+/–) 16...0–0 17.0–0 Nc5 (17...Qa3 18.Qa3 Ba3 19.Ra2+–) 18.Qc2 (18.Qb6!? Qb6 19.Rb6 Bc7+–) 18...Rc8 19.Rc1 (19.Ng5 f5+–) 19...Ne4 20.Ra2 Ba4 21.Qb1 (21.Qd3 Bb3 22.Raa1 Bc4+–) 21...Nc3 22.Rc3 Rc3 23.dc3 Qc3 24.Qb2 Qd3 Threatening mate: Qd1 25.Ne1 (25.Ra1 Bb3+/–) 25...Qd1 (25...Qc4 26.Ra1+/–) 26.Qd2 (26.Ra1 Qh5 27.Nf3 h6+/–) 26...Qh5 27.Nf3 h6 (27...Bb3 28.Rb2 Bc4+–) 28.Qa5+– Bd1 29.Qd8 Bf8 (29...Kh7 30.Ng5 Qg5 31.Qd6+–) 30.Nd4 (30.Rb2 Bf3 31.Rb8 Kh7 32.gf3 Qf3 33.Qf8 Qg4 34.Kf1 Qd1 35.Kg2 Qg4 36.Kh1 Qf3 37.Kg1 Qg4 38.Kf1 Qd1 39.Kg2 Qg4 40.Kf1=) 30...Ba4 Do you see the mate threat? 31.Ra1 g6 (31...Qg6 32.Qa8 Bc2 33.Nc2 Qc2 34.a4+–) 32.Qa5 (32.Qa8 Bd7+–) 32...Bd7 (32...Be8 33.Qa8 Bd7 34.a4+–) 33.Qa7 (33.a4 Qe5+–) 33...e5 (33...Be8 34.Qa8 Bd7 35.e4+–) 34.Qd7 ed4 35.ed4 Ba3 (35...Qg5 36.a4+–) 36.f3 (36.Qd8 Bf8 37.f3 Qf5+–) 36...Qh4 (better is 36...Qg5 37.f4 Qf4 38.Qd8 Kg7 39.Qd5 Bb2+–) 37.Qd5 Qe7 (37...Bf8+–) 38.Qa8 (38.Qa8 Kg7 39.Qa3 Qa3 40.Ra3+–) 1–0. Lea,Per – Koenig,Helmut, corr, 1981.

7.Nc3 Qa5 8.Nf3 Nbd7 9.Be2 Bd6 10.0–0 Ne5 (10...0–0 11.d4+=) 11.Ne5+= Be5 12.bc6 (12.c5 cb5 13.f4 Bc3 14.Bc3 Qa6+/–) 12...bc6+/– 13.cd5 ed5 14.Na4 (14.Qa4 Qa4 15.Na4 Bb2 16.Nb2 c5+/–) 14...Bb2 (14...Bd6 15.Bf6 gf6 16.Nc3+/–) 15.Nb2 Ne4 (15...c5 16.d4+/–) 16.d3 (16.Qc2 0–0 17.d4 c5 18.dc5 Qc5 19.Qc5 Nc5+/–) 16...Nd6 (16...Nc3 17.Qc2+/–) 17.Qc2+– Bd7 (17...Ra6 18.d4 Bf5 19.Bd3 Bd3 20.Nd3+–) 18.d4 0–0 19.Nd3 (19.Rfc1 Rfb8+–) 19...Rfc8 20.Nc5 (20.Qc5 Qc7+–) 20...Bf5 21.Bd3 Bd3 22.Qd3 Nc4 23.a4 Rcb8 24.Rfb1 Rb1 25.Rb1 g6 (25...h6 26.Qf5+–) 26.g3 (26.Qd1 Nd2 27.Nb7 Qc3+–) 26...Qd8 (26...Nd2 27.Rb7+–) 27.Rb4 (27.Qc3 Qg5+–) 27...Qf6 (27...f5 28.h3+–) 28.Kg2 (28.e4 h6+–) 28...h5 (28...Kg7 29.e4+–) 29.e4 Qd6 (29...h4 30.Rb7+–) 30.Rb1 (30.Rb7 h4+–) 30...Rb8 (30...h4 31.Rb7+–) 31.Rb8 Qb8 32.ed5 cd5 33.Qb3 Qc8 34.Qb7 Qf5 35.Qd7 Qc2 36.Qe8+– Kg7 37.Qe1 Qb2 38.Kg1?? Qd4= 39.Nb3 Qb6 40.Qc3 Qf6 41.Qf6+= Kf6 42.a5 Ke6 43.a6 Kd6 44.a7 Nb6+= 45.Na5 Kc7–/+ 46.Kf1 Na8 47.Ke2 Kb6 48.Nb3 Ka7 49.Kd3 Kb6 50.Kd4 Kc6 51.Nc5 Nc7–/+ 52.Nd3 Kd6–+ 53.Ne5?? Nb5 –+. Sigmund,Steffen – Emmrich,Olaf, Mecklenburg VP LL1, 1998.

7.Nc3 cb5 8.cb5 Bd7 (8...Bd6 9.Na4 e5 10.Be2+=) 9.Na4 1–0. Fournier,Frederic (2215) – Jauneau,David, Train France, 2001.

7.Nc3 cb5 8.cd5 Nd5 9.Nb5 =.

7.Nc3 Bd7 8.Na4 (8.cd5!? ed5 9.bc6 Bc6 10.Rc1=) 8...dc4+= 9.bc6 (9.Bc4? cb5 10.Bf6 gf6 (10...Qf6 11.Nb6 Bc6 12.Bb5 Ra3 13.Ra3 Ba3 14.Qb3 Qa1 15.Ke2+=) 11.Be6 Be6–+) 9...Bc6 10.Nc3 b5 11.Nf3 Nbd7 12.Be2 Nc5 13.0–0 Nb3 14.Ra2 Be7 (better is 14...Qc7!?=) 15.Ne5+= Qc7 (15...Bb7!? 16.d3 b4 17.Nc4 bc3 18.Qb3 Bg2 19.Kg2 cb2+/–) 16.Nc6+– Qc6 17.Bf3 Nd5 Black prepares the advance b4 18.Nd5 ed5 19.Bg7 (better is 19.d3!? Rd8 20.dc4 bc4 21.Bg7+/–) 19...Rg8+= 20.Bb2 b4 (20...Nc5 21.Qb1 Nd3 22.g3+=) 21.a4 Rg5 (21...Ra4 22.Ra4 Combination) 22.Be5?? (better is 22.h4 Rg8 23.d3+/–) 22...Re5–+ 23.g3 Ra4 24.Rb2 (24.Ra4 Qa4 25.Qc2 Qc6–+) 24...Ra1 25.Qc2 Rf1 26.Kf1 Qh6 (better is 26...Qf6 27.Rb3 Qf3 28.Rb4 Bb4 29.Qa4 Kd8 30.Qb4–+) 27.Kg2 (27.d4 Rh5! 28.h4 Nd2 29.Qd2–+) 27...Qg6 28.Qd1 Qd3 (better is 28...Qf6!? 29.Ra2 Kf8 30.Qb1–+) 29.Be2 Qf5 30.d3 Qe6 31.dc4 dc4 32.Qc2 (32.Bc4 Qc4 33.Qb3 Qb3 34.Rb3 Ra5–+) 32...Rc5 33.Qh7 c3 34.Rc2 (34.Ra2 Na5 35.Ra1 Bf8–+) 34...Nd2 35.Bd1 (35.Qh8 Bf8 36.Qd4 Qe4 37.Qe4 Ne4–+) 35...b3 36.Qh8 Bf8 37.Rc3 (37.Rd2 cd2 38.Qd4–+) 37...Qd5 (better is 37...Qa6 38.Kh3 Qa1 39.Qd4 Qc3 40.Qa4 Rc6 41.Qa8 Ke7 42.Qa7 Rc7 43.Qa3 Rc5 44.Qa7 Kf6 45.Qb6 Kg7 46.Bb3–+) 38.Kh3?? (38.f3–+) 38...b2 (38...Ne4 39.Rc5 Nf2 (39...Nc5?! 40.Be2–+; 39...Qc5?! 40.Bb3 Qf5 41.Kg2 Qf2 42.Kh3 Ng5 43.Kg4 Qe3 44.Bd5–+) 40.Kh4 Qc5 41.Bb3 Qb4 42.Qd4 Be7 43.Kh5 Qb3 44.Qh8 Kd7 45.Qd4 Kc8 46.Qh8 Bd8–+) 39.Rc5= Qc5 40.Qb2 Qf5 41.Kg2 Qd5 42.Kh3 Nc4 43.Ba4 Ke7 44.Qd4 Qf5 (better is 44...Qd4 45.ed4 Bg7–/+) 45.Kg2+= Nd6 46.Qh4 f6 47.g4?? (better is 47.Bc6+=) 47...Qe4–+ 48.Kg3 Qa4 49.Qh7 Nf7 50.h4 Ke8 51.Qf5 Bd6 52.Kg2 (52.f4 Qb3 53.Kf2 Qb2 54.Kf3 Qc3–+) 52...Qc6 53.Kg1 Nh6 (better is 53...Ke7–+) 54.Qg6= Nf7 55.h5?? (55.Qf5 Ke7 56.h5–+) 55...Ke7 (55...Qf3!? 56.Kf1–+) 56.h6 Qe8 57.h7 Qh8 58.f4 Bc5 59.Kf2 Kf8 60.g5? (60.Kf3–+) 60...fg5 61.fg5 (61.Qf5 Be7 62.Qg6–+) 61...Qg7 (better is 61...Qb2 62.Kf1 Be3–+) 62.Qf5= Qb2 63.Kf3 Kg7 64.g6?? (better is 64.Qc5 Qb7 65.e4 Kh7 66.Qf5 Kg7 67.Qf6 Kg8 68.g6=) 64...Ne5–+ 65.Kg3 Be3 (better is 65...Qc3 66.Qg5 Qe1 67.Kg2 Qe2 68.Kh1 Qf1 69.Qg1 Qf5–+) 66.h8Q! Kh8 (66...Kh8 67.Qf8) 67.Qf8 1–0. mikebaldini (1705) – mightydragon (1720), gameknot.com, 2013.

7.d4 Nbd7 8.Nc3 Qa5 9.Nf3 Ne4 10.Qc2 f5 11.Be2 Ndf6 (11...cb5 12.cb5 Bd6 13.0–0+=) 12.0–0 Be7 13.bc6 bc6 14.Ne5 Bd7 15.f3 Nc3 16.Bc3 Qa7 17.c5 0–0 18.Bd3 Be8 19.Rab1 Qc7 20.Rb6 Bd8 (20...Bd6 21.Rfb1 Be5 22.de5+–) 21.Ba6+– 1–0. Heini – chessenemy, internet, 2016.

6.c4 cb5

7.cb5 Qb6 8.Nf3 Be7 9.d4 0–0 10.Nbd2 (better is 10.Nc3+=) 10...Nc6?? (better is 10...Bd7=) 11.bc6+– Qb2 12.Rb1 Qa3 13.Rb3 Qd6 14.cb7 Bb7 15.Rb7 a4 16.Ne5 a3 17.Bd3 a2 (17...Rfb8 18.Rb8 Qb8 19.Nc6+–) 18.Qa1 Ne4? (better is 18...Rfc8 19.0–0 Qa3+–) 19.Ne4 de4 20.Be4 Ra3 (20...Rfc8 21.0–0 Ra4 22.Rd7+–) 21.0–0 (better is 21.Nc4 Qa6 22.Na3 Ba3+–) 21...f6 (21...Ra4+–) 22.Nc4 Qa6 23.Na3 Qa3 24.Rb2 f5 25.Ra2 Qd6 26.Ra6 Qc7 (26...Qd7 27.Bc6 Qc7 28.Rb1+–) 27.Rc1 Qb8 28.Qa2 fe4 (28...Kh8 29.Bf3+–) 29.Re6 Bh4 (29...Kh8 30.Re7 h6 31.Qb1+–) 30.Re8 Kh8 31.Rb8 Rb8 32.Qe6 Rf8 33.Rc8 Bf2 34.Kf1 Be3 (34...h5 35.Rf8 Kh7 36.Qf5 g6 37.Qf6 Be3 38.Rh8) 35.Rf8 1–0. Janek – zandar, internet, 2017.

7.cb5 Bd7 8.Nf3+= Bd6 9.Be2 Qb6 (9...0–0 10.0–0=) 10.Bc3 (better is 10.Bd4 Qd8 11.Nc3+=) 10...Bb5?? (better is 10...Bc8=) 11.Qb3+– Nbd7 12.Qb5 0–0 (12...Qb5 13.Bb5 0–0 14.a4+–) 13.Qb6 Nb6 14.Bf6 gf6 15.Nc3 Rac8 16.Rb1 Nc4 17.Bc4 Rc4 18.Rb7 Ba3 19.Ke2 Bb4 20.Nb5 Rc2 (20...Rfc8 21.Nbd4+–) 21.Nbd4 Ra2 22.Nc6 Bc5 (22...Bd6 23.Rd7 Bc5 24.Rc1+–) 23.Rb5 Bb4 (23...Bd6 24.Ra5 Ra5 25.Na5+–) 24.Nb4 ab4 25.Rb4 Rc8 26.Rhb1 Rcc2 (26...Kg7 27.Rg4 Kf8 28.Rb7+–) 27.Rg4 Kf8 28.Rb8 Ke7 29.Rg7 e5 (29...Rcb2 30.Rc8 Rb7 31.Rh7+–) 30.Rb7 Ke6 31.Rh7 e4 (31...Rc8+–) 32.Nd4 Ke5 33.Nc2 Rc2 34.Re7 (34.Re7 Kd6 35.Ref7+–) 1–0. b4_player – speelcase, internet, 2014.

7.cb5 h6 8.Nf3 (8.Nc3 Bd6 9.Nf3 Nbd7 10.Be2 0–0 11.Rc1 Qe7 12.a4 Nb6 13.Qb3; 8.d4 Bd6 9.Bd3 Nbd7 10.Nf3 b6 11.Nc3 Bb7 12.0–0 0–0 13.Rc1; 8.Be2 Nbd7 9.Nf3 Bd6 10.Nc3 0–0 11.0–0 b6 12.Rc1 Bb7 13.d4; 8.Qc2 Nbd7 9.Nf3 Bd6 10.Be2 0–0 11.0–0 Nc5 12.Bd4 b6 13.Nc3) 8...Nbd7 9.d4 Bd6 10.Bd3 b6 11.Nc3 Bb7 12.0–0 0–0 13.Qb3.

7.cd5 b4 8.Bb5 Bd7 9.Bd7 Nbd7 10.de6 fe6 11.Nf3 Be7 12.0–0 0–0 13.d4.

7.cd5 b4 8.de6 fe6 9.Nf3 ba3 10.Na3 (worse is 10.Ba3 Ba3 11.Na3 Nc6+=) 10...Bb4 11.Nc2 Nc6 12.Nfd4 Bd7 13.Nc6 Bc6 14.Nb4 ab4 15.Ra8 Qa8 16.Qb3 Kf7 17.Qb4 Qa2 18.f3 Qb1 19.Kf2 Rd8 20.Ba3 Qb4 21.Bb4 Nd5 22.Bc5 b6 23.Bd4 Kg8 24.Be2 Nf6 25.Ra1 b5 26.Ra6 Rc8 27.Ra7 Nd7 28.Bc3 Nf6 29.Re7 1–0. pierre (2095) – fereidoonezzati, internet, 2012.

7.cd5 b4 8.de6 Be6 9.Ne2 Nc6 10.Nf4 Bd7 11.Be2 Bd6 12.ab4 Nb4 13.Nc3.

7.cd5 b4 8.Nf3 ed5 9.ab4 Bb4 10.Nc3 Nc6 11.Bd3 0–0 12.0–0 h6 13.h3.

7.cd5 ed5?! 8.Bb5 Nc6 9.Qa4 Bd7 10.Ne2 Bd6 11.Nbc3 Ne5 12.0–0 Rc8 13.Nd4.

7.cd5 ed5?! 8.Bb5 Nc6 9.Nc3 =.

7.cd5 ed5?! 8.Bf6 Qf6 9.Nc3 Nc6 10.Nd5 Qd8 11.Qf3 Be6 12.Nf4 Qf6 13.Rb1.

7.cd5 Qd5 8.Nc3 Qd8 9.Nb5 +=.

7.cd5 Nd5 8.Bb5 Bd7 9.Be2 Bd6 10.Nc3 Nc3 11.dc3 Qc7 12.Nf3 Na6 13.c4 e5 14.Qd2 Rd8 15.Bc3 0–0 16.Ba5 b6 17.Bc3 Rfe8 18.Rd1 (18.Rb1 Bf5 19.Rb5 Nc5=) 18...Bc6 (18...Ba3 19.Qa2 Bb4 20.Bb4 Nb4 21.Qb2=) 19.0–0 (19.Qc2 e4 (worse is 19...Ba3 20.Ra1+–) 20.Nd4 A) worse is 20...Ba3 21.Ra1 (21.Nc6?! Rd1 22.Qd1 Qc6=) 21...Nb4 22.Qd1+/–; B) 20...Nc5 21.Nc6 Qc6+=) 19...e4+= (worse is 19...Ba3 20.Qa2 Bd6 21.Rd6 Rd6 22.Be5+/–) 20.Nd4 Bh2 (20...Ba3 21.Ra1 Qd6 22.Rfd1+=) 21.Kh1 Be5 22.Qb2 Ba4 23.Rd2 Nc5 24.Nf5 Bc3 (24...Rd2 25.Qd2 Bc3 26.Qc3+=) 25.Qc3= f6 26.Rb1 ˝–˝. Bonetti,Shane – Schulz,Hans_Juergen, T15–11.48 ETC, 2004.

7.cb5 b6

8.Qc2 Nbd7 9.Nf3 Bb7 10.Nc3 Rc8 11.Be2 Bd6 12.Nd4 0–0 13.0–0.

8.Nc3 Nbd7 9.Nf3 Bd6 10.d4 Bb7 11.Bd3 0–0 12.0–0 h6 13.Rc1.

8.d4 Bd6 9.Nc3 Nbd7 10.Nf3 Bb7 11.Bd3 0–0 12.0–0 Rc8 13.Qb3.

8.Be2 Nbd7 9.Nc3 Bb7 10.Nf3 Bd6 11.0–0 Rc8 12.a4 0–0 13.d4.

8.Ne2 Bd6 9.Nbc3 0–0 10.Rc1 e5 11.d4 Nbd7 12.g3 Bb7 13.Bg2.

8.Nf3 Nbd7 9.Nc3 Bd6 10.d4 Bb7 11.Bd3 0–0 12.0–0 Rc8 13.Rc1.

8.Nf3 Nbd7 9.d4 Bd6 10.Nc3 Bb7 11.g3 (11.Bd3 Rc8=) 11...0–0 12.Bg2 Rc8 13.0–0 Qe7 14.Nh4 Ne4 15.Ne4 de4 16.f4 f5 17.Bh3 Bd5 18.Rf2 Rc7 19.Ng2 Rfc8 20.Ne1 Nf6 21.g4 g6 22.g5 Nh5 (22...Ne8!?–/+) 23.Bf1+= h6 24.Rg2 hg5 25.Rg5 Qh7 26.Be2 Nf4 27.ef4 Bf4 28.Rg2 Kf7 0–1. Rancic,Danijela (1920) – Livaja,Mario (2205), Nis Serbia, City Championship, 2010.

7.cb5 Bd6

8.Qc2 Nbd7 9.Nf3 0–0 10.Be2 Nc5 11.0–0 b6 12.Nc3 Bb7 13.Nd4.

8.Nc3 0–0 9.Be2 Nbd7 10.Nf3 b6 11.d4 Ne4 12.0–0 Ndf6 13.Ne5.

8.d4 Ne4 9.Nc3 Nd7 10.Nf3 0–0 11.Bd3 Ndf6 12.Ne5 Bd7 13.f3.

8.Be2 0–0 9.Nc3 Nbd7 10.Nf3 b6 11.0–0 Bb7 12.d4 Rc8 13.Rc1.

8.Nf3 0–0

9.Nc3 Nbd7 10.d4 Nb6 11.Bd3 Nc4 (11...Bd7 12.Ne5=) 12.Bc4 dc4 13.Qc2 (13.Nd2 Qc7 14.Qa4 Bh2 15.Nc4 Bd6+=) 13...b6 14.0–0 Bb7 15.Ne5 (15.e4 Nd7=) 15...Be5+= 16.de5 Ng4 17.Ne2 Ne5 18.Be5 Qd5 19.f3? (better is 19.Nf4!? Qe5 20.Qc4+=) 19...Qe5–/+ 20.e4 (20.Qc4!? Qe3 21.Rf2 Rad8–+) 20...Qb5–+ 21.Rfb1 Qc5 22.Kf1 b5 23.Nc3 Bc6 24.Qb2 Rad8 25.Nb5 (25.Qc2–+) 25...Bb5 26.Qb5 (26.Qc3 Rd3 27.Qa5 Rd1 28.Rd1 c3 29.Qb5 Qb5 30.Kf2 Ra8–+) 26...Rd1!! 27.Ke2 (27.Rd1 Qb5 Deflection) 27...Qb5 28.Rb5 Ra1 29.Ra5 (29.Rc5 Ra2 30.Kd1 Rg2 31.Rc4 Rh2 32.f4–+) 29...Rc8 30.Kd2 c3 31.Kc2 Ra2 32.Kc1 c2 (32...c2 33.Re5 Ra1 34.Kd2 c1Q 35.Ke2 Rc2 36.Kd3 Qd2) 0–1. Fournier,Frederic – Nimmerzat (2495), Partie evaluee, 5m + 0s, 2008.

9.Nc3 e5 10.d4 (10.Be2 Be6=) 10...e4+= 11.Nd2 Nbd7 12.Be2 Nb6 13.a4 (13.0–0 Qe7+=) 13...Ne8 (13...Bf5 14.0–0+=) 14.Ba3 (14.0–0 Qh4 15.f4 Bf5+=) 14...Ba3 (14...Qg5 15.Bd6 Nd6 16.Rg1+=) 15.Ra3 Qg5 16.g3 (16.g4 Be6+=) 16...Bh3 17.Bf1 (17.Ra2 Rc8 18.Rc2 Nd6+=) 17…Qf5 (17...Qf5 18.f3 ef3 19.Qf3 Qf3 20.Nf3 Bf1 21.Kf1 Nc4+=; 17...Bf1 18.Rf1 Rc8 19.h4–/+) 0–1. De Visser,Arno – Luzuriaga,Norberto Horacio, Orang–Utan Invitational, 2002.

9.d4 h6 10.Bd3 Nbd7 11.0–0 b6 12.Nc3 Bb7 13.Rc1.

9.Be2 b6 10.0–0 Re8 (10...Qe7 11.Be5=) 11.d4 (11.Be5 Be5 12.Ne5 Nfd7 13.Nd7 Nd7+=) 11...Nbd7 (11...Ra7 12.Ne5=) 12.Nbd2 (12.Nc3 Qe7=) 12...e5 (12...Bb7 13.Rc1=) 13.de5+= Be5 (13...Ne5 14.Be5 Be5 15.Ne5 Re5 16.Nf3+=) 14.Ne5+/– Ne5 15.Rc1 Bf5 16.Be5 (16.Nf3 Nf3 17.Bf3 Be4+/–) 16...Re5+= 17.Nf3 Re6? (better is 17...Re8+=) 18.Nd4+– Re8? (better is 18...Bg6 19.Ne6 fe6+–) 19.Nf5 Rc8 (19...Ne4 20.Rc6 g6 21.Nd4+–) 20.Rc8 (20.Rc8 Qc8 21.Nd6+–) 1–0. Reimer,Karl (1700) – Lee,Thomas, Ludwigshafen–ch, 1998.

9.Be2 Nbd7 =.

8.Nf3 Nbd7

9.d4 0–0 10.Nc3 Re8 11.Bd3 e5 12.de5 Ne5 13.Ne5 Be5 14.Rb1 Qd6 15.Qc2 Bd7 (15...d4 16.Rd1 Qc5 17.Na4 Qc2 18.Bc2 de3 19.Be5 ef2 20.Kf2 Ng4 21.Kg3 Ne5 22.Nb6=) 16.Ne2= Rac8 (16...Rac8 17.Be5 Qe5=). Mack,Lienhard – Hahn,Andreas (1790), E7Kl033 DESC, 2002.

9.d4 0–0 10.Nbd2 b6 11.Rc1 Bb7 12.Be2 Rc8 13.Rc8 Qc8 14.Qb1 Qb8 15.0–0 Ne4 16.g3 Ndf6 17.Rc1 Nd2 18.Nd2 Ne4 19.Rc2 Rc8 20.Bd3 ˝–˝. Woelfelschneider,Peter (2325) – Solis,Jose Alberto (2460), CiF, 2010.

9.d4 0–0 10.Bd3 Ne4 11.Nbd2 f5 12.0–0 Ndf6 13.Ne5 Bd7 14.f3 Nd2 15.Qd2 a4 16.Bc3 Qe7 17.Qb2 (17.Rfb1 Rfc8+= (17...Ba3?? 18.Ra3 Qa3 19.Bb4 Qd3 20.Qd3+–)) 17...Rfc8 18.Rfb1 Be8 19.Ra2 Qc7 20.Bb4 Be5 21.de5 Nd7 22.f4 (22.Bd6 Qc3 23.Rd1 Nb6+=) 22...Nb6 (22...Nc5 23.Bc5 Qc5 24.Qd4=) 23.Qd4+= Nc4 24.Rc2 Bb5 25.Rbc1 (better is 25.Bf5!? Ra6 26.Bd6=) 25...Qf7–/+ 26.Be2 h6 27.g3 Kh7 28.Kf2 g5 (28...Rc6 29.Bd3–/+) 29.Kg2 g4 30.Rc3 h5 31.Kf2 Kg6 32.Bc5 Rh8 33.Rb1 Ba6 34.Rcc1 (34.Ke1!?=) 34...h4–/+ 35.Rh1 Rh6 36.Kg2? (36.gh4!? Rah8 37.Rbg1 Rh4 38.Ke1–/+) 36...Rah8 (36...Na3 37.Ba6 Nb1 38.Be2–+) 37.Rbg1 (37.Bc4!? Bc4 38.gh4 Rh4 39.Qd2–+) 37...Qh7 38.Qd1 (38.Kf1 hg3 39.h4 Rh4 40.Rh4 Qh4 41.e4 fe4 42.Ke1 g2 43.Kd1–+) 38...hg3 39.Bg4 (39.h4–+) 39...Rh2 40.Rh2 Qh2 0–1. Fournier,Frederic (1780) – Gorse,Gerard (2050), Open, 2001.

9.d4 b6 10.Bd3 Ne4 11.Nc3 Bb7 12.0–0 0–0 13.Nd2 (13.Qa4 Rc8 14.Rfc1 Qf6=) 13...Nc3+= 14.Bc3 Qc7 (14...Bh2 15.Kh2 Qc7 16.Kg1 Qc3+=) 15.Qb3 (better is 15.Qc2!?=) 15...Bh2–/+ 16.Kh1 Bd6 17.Rac1 Qd8 18.Nf3 Nf6 19.Bb2 (19.a4 Rc8–/+) 19...Ne4 20.Kg1 Qe7 21.a4 Rac8 (21...Rfc8 22.Rfd1–/+) 22.Rc8 Rc8 23.Rc1 Rc1 24.Bc1 f6 25.Bb2 g6 (25...f5 26.Qc2–/+) 26.Be4 (26.Qc2 Kg7–/+) 26...de4–/+ 27.Nd2 Bd5 28.Qc3 Qc7 29.Qc7 Bc7 30.Kf1 Kf7 31.Ke2 h5 32.f3 (32.Ba3 e5–+) 32...ef3–+ 33.Nf3? Bb3 0–1. Fournier,Frederic – White Queen (2635), Partie evaluee, 3m + 0s, 2008.

9.Be2 0–0 10.Nc3 Qe7 11.h4 Nb6 12.h5 e5 13.Qb1 Bg4 14.Ng5 Be2 15.Ne2 Qd7 (better is 15...h6!? 16.Nf3 Nc4–/+) 16.f4= Nc4 17.fe5 Be5 18.Be5 Ne5 19.0–0 Neg4 20.Nd4 h6 21.Nh3 Nh5 22.Nf4 Ng3 23.Rf3 Ne4 24.Qb2 (better is 24.Qa2!?–/+) 24...Ne5–+ 25.Raf1? (25.Rh3 Nc4 26.Qc2 Ncd2 27.Rh5–+) 25...Nc4 26.Qa1 Ncd2 27.Nh5 (27.Nd5 Rae8 28.Nf5 f6–+) 27...Nf3 28.Rf3 f6 29.Nf4 Rac8 30.Qa2 Rc4 31.Ng6 Re8 32.Nf5 (32.Nf4 b6–+) 32...Kh7 33.Nfh4 Qc7 34.Rf4 Qc5 35.Qe2 (35.Kh2 Qe3 36.Rf1 Qg3 37.Kg1 Nc3–+) 35...Ng3 (35...Rc1!? 36.Kh2 Rh1 37.Kh1 Ng3 38.Kh2 Ne2 39.Rf3–+) 36.Qg4 (36.Qd3 Re3 37.Nf8 Kg8 38.Qh7 Kf8 39.Ng6 Kf7–+) 36...Qe3 37.Kh2 Nf1! 38.Kh1 (38.Rf1 Qe2 Double attack (38...Rg4 Pinning; 38...Rg4 Deflection; 38...Qe2 Decoy)) 38...Ng3 39.Kh2 Rc1 (39...Ne2 40.Qf5 Qg1 41.Kh3 Re3 42.Kg4 Rg3 43.Kh5 Rg5 44.Qg5 hg5 45.Rc4 dc4 46.a4–+) 40.Nf3 Ne4 41.Qf5 (41.Qd7 Nf2 42.Qd5 Rh1 43.Kg3–+) 41...Nd6 (better is 41...Rh1! 42.Kh1 Ng3 43.Kh2 Nf5 44.Rf5 Kg6 45.Rd5 Qf4 46.Kh1 Re2–+) 42.Nf8 Kg8 43.Qd5 Kf8 44.Qd6 Qe7 45.Qd3 Qc7 46.Qf5 Rc4 47.g3 Rf4 48.gf4 Qc8 49.Qd5 Qg4 50.Nd4 Qf4 51.Kg1 Re1 52.Kg2–+ Qe4 53.Qe4 Re4 54.Nf5 g6 55.Nd6 Re5 56.a4 b6 57.Nc8 Re6 58.Na7 Ke8 0–1. Ackaert,T (2055) – Renette,H (2345), 33rd Taminco Open, Ghent BEL, 2010.

7.cb5 Nbd7

8.Nc3 Bd6 9.Nf3 0–0 10.Be2 b6 11.d4 Bb7 12.0–0 Rc8 13.Rc1.

8.Nf3 a4 9.Nc3 Nc5 (9...Nb6 10.Be2=) 10.Be2 Bd6 11.0–0 Bd7 12.d4 Nb3 13.Rb1 Qa5 14.Qd3 0–0 15.Bd1 (15.e4 Rfc8 16.e5 Ba3 17.Na4 A) worse is 17...Qa4 18.Ba3 (worse is 18.ef6 Bb2 19.Rb2 Nc1+=) 18...Bb5 19.Qb5 Qb5 20.Bb5 Ra3 21.ef6+/–; B) 17...Bb2 18.Qb3 Qa4 19.Qa4 Ra4 20.Rb2 Ne4=) 15...Rfc8 16.Bb3 ab3 17.Rfc1 Ba3 18.Ba3 Qa3 19.Ne5 (better is 19.Nd2 b2 20.Rc2–/+) 19...b2–+ 20.Rc2 Qb3 21.Rcb2 (21.Qd2 Rc3! 22.Qc3 Qc3 23.Rc3 Ra1–+) 21...Qc3 22.Qc3 Rc3 23.Nd7 (23.g4 h6–+) 23...Nd7 24.g3 Kf8 25.Kg2 Ke7 26.h4 e5 27.de5 Ne5 28.Rb3 (28.Rd1 Ke6–+) 28...Rb3 29.Rb3 Ra2 30.Rc3 (30.Kf1 Kd6–+) 30...Kd6 31.b6 Ng4 32.Rc7 Rf2 33.Kh3 (33.Kg1–+) 33...f5 34.Rg7 Rh2 0–1. Fournier,Frederic – NoRybka1956 (2445), Partie evaluee, 3m + 0s, 2008.

8.Nf3 Bd6 9.d4 0–0 10.Nbd2 b6 11.Ne5 Bb7 12.Rc1 Rc8 13.Rc8 Qc8 14.Bd3 Qc7 15.f4 Be7 (15...Rc8 16.0–0=) 16.0–0 Ne5 17.fe5 Ne4 18.Qh5 Bg5 19.Qe2 Rc8 20.Rc1 Qd8 21.Ne4 de4 22.Bb1 Bd5 23.a4 h5 (23...Rc1 24.Bc1 Qc7 25.Qc2 Qc2 26.Bc2=) 24.Rc8 Qc8 25.Kf2 (25.Qh5 Be3 26.Kh1 Bd4 27.Bd4 Qc1 28.Bg1 Qb1=) 25...h4 26.h3 f5 27.ef6 gf6 28.Qg4 Qd8 (28...Qc4 29.Be4 Qb3 30.Bd5 Qe3 31.Kf1 ed5 32.Qd1=) 29.Bc2= Qe7 0–1. Fournier,Frederic (2315) – Conde,Jose (2625), queenalice.com, 2010.

8.Nf3 Bd6 9.d4 0–0 10.Bd3 Qe7 11.0–0 b6 12.Ne5 Ne4 13.f3.

8.Nf3 Bd6 9.d4 0–0 10.Be2 Qe7 11.0–0 Nb6 12.a4 Bd7 13.Qb3 (13.Ne5 Rac8=) 13...Rfc8 (13...Ne4 14.Nc3=) 14.Nbd2 Bb4 15.Rfc1 Rc1 16.Rc1 Bd2 17.Nd2 Qb4 18.Qb4 ab4 19.a5 (19.f3!?+=) 19...Ra5–/+ 20.Rb1 Ra2 21.Bd3 Na4 22.Bc1 Nc3 23.Rb4 Nfe4 24.Rb3 Ra1 (24...Nd2?! 25.Rc3 f6 26.b6+=) 25.Nb1 Nb1 26.Rb1 Rb1 27.Bb1 Nc3 28.Bd3 Bb5 29.Bd2 Bd3 30.Bc3 Kf8 31.f3 Ke7 32.Bb4 Kd7 33.Kf2 Kc6 34.Ke1 Kb5 35.Bf8 g6 ˝–˝. Myrberg,Johnny – Andersson,Egart (2320), corr 3GMMsemi–05, 1998.

8.Nf3 Bd6 9.Be2 e5 10.d3 0–0 11.0–0 Re8 12.Nc3 Nb6 13.Rc1 a4 14.Rc2 Qe7 15.Qa1 e4 16.de4 de4 17.Nd2 Qe5 18.g3 Qg5 19.Rd1 Qh6 20.Ncb1 Be7 21.Rdc1 Nbd5 22.Nc3 Nc3 23.Bc3 Ng4 24.Nf1 (24.Ne4?? Qh2 25.Kf1 Qh1) 24...Be6 25.Bd4 Qg6 26.Rc7 Rab8 27.Ba7 Ra8 28.Bd4 Rab8 29.Ba7 Rbd8 30.Bc5 Bf6 31.Bd4 Qf5 32.Bg4 Qg4 33.Bf6 (33.Rb7!? Qf3 34.Nd2=) 33...Qf3–/+ 34.g4 gf6 35.h3 Qh3 36.Qf6 Qg4 37.Ng3 b6 38.Qf5?? (38.Qe5 f5–/+) 38...Rd3 (better is 38...Bf5 39.R7c6 Rd1 40.Rd1 Qd1 41.Kh2 Qf3 42.Nf5 Qf2 43.Kh1 Qf5–+) 39.Qe4 Ra3 40.Qg4 (40.Rb7 Qg5 41.Rb6 Bd7–/+) 40...Bg4 41.Rb7 Re6 42.Rc8 Kg7 43.Rbb8 Kf6 44.Rc4 h5 45.Ra8 Re5 46.Rca4 Ra4 47.Ra4 Rb5 48.f3 Be6 49.Rh4 Kg6 50.Kf1 Ra5 51.Ke1 Ra1 52.Ke2 b5 53.Kf2 Ra2 54.Kg1 Ra4 (54...f5 55.Nh5 Kg5 56.Rh3–+) 55.Rh5 (55.e4 b4 56.Rh5 Ra1 57.Kf2 Ra2 58.Kg1 b3–+) 55...Ra1 56.Kf2 Ra2 57.Kg1?? (57.Kf1 b4 58.f4–+) 57...b4–+ 58.Rb5 b3 59.f4 Kg7 60.Rb4 (better is 60.Ne4–+) 60...Rc2 61.Nf5 Bf5 62.Rb3 Kg6 63.Rb8 Kh5 64.Rg8 Bg6 (64...Bg6 65.Ra8 Kg4–+) 0–1. Cottarelli,Franco – Bendig,Frank, corr ICCF TT, 2002.

6.c4 dc4

7.Nc3 cb5 8.Nb5 Be7 =.

7.Bc4 cb5 8.Bb5 Bd7 9.Qa4 Be7 10.Nf3 0–0 11.0–0 Nc6 12.d4 Qb6 13.Nc3 (13.Nbd2 Ne5 14.Bd7 Ned7=) 13...Rfd8 14.Rab1 Na7 15.Bd3?? (better is 15.Bd7 Rd7 16.Ne4+=) 15...Ba4–+ 16.Na4 Qc6 17.Nc3 Ba3! 18.Rfc1 (18.Ba3 Qc3 Double attack (18...Qc3 Deflection; 18...Qc3 Decoy; 18...Qc3 Overloading)) 18...Bb2 19.Rb2 Qd7 20.Rbc2 Nc6 21.Bb5 Qd6 22.Ba4 Nb4 23.Rd2 Rac8 24.Rdd1 g6 25.Nb5 Qe7 26.Nc3 Kg7 27.Ne5 Nfd5 28.Nd5 Nd5 29.Bb3 (29.Ra1 Nc3 30.Re1 b5–+) 29...b5 (better is 29...Nc3 30.Kf1 Nd1 31.Rd1–+) 30.Bd5 (30.Nc6 Qa3 31.Bd5 Rd5–+) 30...Rc1 31.Rc1 Rd5 32.Nd3 (32.Kf1–+) 32...Qa3 33.Rd1 b4 (33...b4 34.Nf4 Rb5–+) 0–1. Fournier,Frederic (1695) – drjones19, Active, 2007.

7.Bc4 cb5 8.Bb5 Bd7 9.Nc3 Be7 10.Nf3 0–0 11.0–0 Bb5 12.Nb5 Nc6 13.Nfd4 Nd4 14.Bd4 Qd7 15.a4 Rac8 16.Qf3 Nd5 17.Rac1 Bf6 18.Bf6 Nf6 19.d4 Nd5 20.e4 Nb4 21.h3 Rc6 22.Rcd1 Rc4 23.e5 Nd5 24.Ra1 b6 25.Qd3 Rc6 26.f4 Nb4 27.Qe4 f5 28.Qf3 Nc2 29.Rad1 Rc4 The pressure on the backward pawn d4 grows 30.Qb3 Rfc8 31.d5 ed5 32.Nd6 Nb4 (better is 32...Nd4 33.Qe3 Ne6 34.Nc8 Qc8 35.Rd5 Nc5+–) 33.Nc4 (33.Nc8?! Qc8 34.Qf3 Qc6+=) 33...Rc4?? (33...dc4 34.Qc4! Rc4 35.Rd7 h5+–) 34.Qc4!! 1–0. combijack (1795) – chessnewcomer (1750), gameknot.com, 2010.

7.Bc4 cb5 8.Bb5 Bd7 9.Bd7 Nbd7 10.Nf3 Qb6 11.Bf6 Nf6 12.Nc3 Be7 13.Rb1 Qc6 14.0–0 0–0 (14...Ba3? 15.Ne5 Qc5 16.Qa4 Kf8 17.Rb5+–) 15.Qb3 Nd5 (15...Rab8 16.Nd4 Qd6 17.a4=) 16.Ne5 Qd6 17.Nc4 Qd7 (17...Qc6 18.Nd5 Qd5 19.Qb7 Qc4 20.Qe7+=) 18.Qb7 Qb7 19.Rb7 Nc3 20.Re7 Nd5 21.Rb7 Rfc8 22.Nd6 Rc2 23.Nf7 (23.Rf7?! Rc6 24.Rb1 h6=) 23...Rd2 24.Ng5 Re8 25.Ra7 Nc3 26.Ra5 Ne2 27.Kh1 Red8 (27...Nc3 28.Rc5 Nd5 29.Rc6+–) 28.g4 (28.Ne6 Rd1 29.g3 Rf1 30.Kg2 Rg1 31.Kf3 Re8–/+) 28...R2d6 (28...R2d5 29.Rd5 ed5 30.Re1+–) 29.Rc5 h6 (29...Rd2+–) 30.Ne4 Rd1 (30...Rd3 31.Rc2 Nd4 32.ed4 R8d4 33.Re1+–) 31.Kg2 1–0. pierred – anony, internet, 2014.

7.Bc4 cb5 8.Bb5 Bd7 9.Be2 Be7 (9...Bd6 10.Nf3=) 10.Nf3 0–0 11.Nc3 Bc6 (11...Nc6 12.d4=) 12.0–0 (12.Rc1 Nbd7=) 12...Nbd7 (12...Qd6 13.Nb5 Bb5 14.Bb5+=) 13.Nd4 Qb8 (13...Rc8 14.Rb1=) 14.Rb1 (14.Nc6 bc6 15.Rb1 Qd6+=) 14...Bd6 (14...Rc8 15.Nc6 Rc6 16.Bf3+=) 15.g3 (15.Nc6 bc6 16.f4 Qd8+=) 15...Ne5 (15...Rc8 16.Nc6 bc6 17.Qc2+=) 16.Nc6 (16.f4 Ng6+/–) 16...Nc6+= 17.Nb5 Be7 18.f4 (18.Bf6 Bf6 19.d4 Qd8+=) 18...Rd8 (18...Qd8 19.Bf6 Bf6 20.d4+=) 19.Bf3 (19.Bf6 Bf6 20.d4 Qc8+=) 19...Nd5 (19...Qc8 20.Bf6 Bf6 21.d4=) 20.Qe2 Qc8 21.Rfc1 (21.Be4 Qd7+=) 21...Rd7 (21...Qd7 22.e4 Nf6 23.d4+=) 22.f5 ef5 23.Qc4 (23.Nd4 Qd8 24.Nf5 Bf6+=) 23...Nb6 (23...Qd8 24.Qc2=) 24.Qc2+= Qd8 Looking at d2 25.Qf5 (25.Bc6 Rd2 26.Qc3 Bf6=) 25...Rd2= 26.Nd4? (26.Be4 g6 27.Qf3=) 26...Na4?? (better is 26...Rb2 27.Nc6 bc6 28.Rb2 Ba3–/+) 27.Nc6+= bc6 28.Bd4 Rc8 29.Rb7 Rd4 30.ed4 Qd4?? 31.Kf1 Bf8 32.Qc8 Nc3 33.Qf5 Qc4 34.Kg2 f6 35.Qc2 Qa6 36.Qb3 Nd5 Black threatens to counter with a4 37.Bd5 cd5 38.Qd5 Kh8 39.Rc8 Qe2 40.Kh3 Qf1 41.Kg4 Qe2 42.Kf5 Qf1 43.Ke6 Qe2 44.Kf7 Qe7 45.Re7 (45.Re7 h6 46.Kg6 f5 47.Rf8#) 1–0. Mielke,Sven (2095) – Schmidt,Gerhard (1710), Ryck – Open Greifswald, 2002.

7.bc6 b5 8.Qf3 Ra6 9.Bf6 Qf6 10.c7 Nd7 11.Qf6 Nf6 12.g3?? Bd6 13.Bg2? Bc7–+ 14.f4 0–0 15.Ne2 Rd8 16.0–0 Rb6 17.Nd4 Bb7 18.Bb7 Rb7 19.Nc3 b4 20.ab4 ab4 21.Ncb5 Bb6 22.Rab1 Bd4 23.Nd4 Ne4 24.Rfd1 Rdb8 25.d3? Nc3–+ 26.Rdc1 Nb1 27.Rb1 c3 28.Kf2 b3 29.Ke2 c2 30.Rc1 b2 31.Rc2 b1Q 32.Rd2 Rb2 33.Rb2 Rb2 34.Kf3 Qd1 35.Ke4 Rh2 36.Nf3 f5 37.Kd4 Qf3 38.e4 (38.Kc5 Rc2 39.Kb4 Qb7 40.Ka3 Rc6 41.g4 Ra6) 0–1. dtpwaldi (1610) – maszyna222 (1725), kurnik, 2011.

7.bc6 Nc6 8.Nf3 b5 9.a4 Nb4 10.ab5 Nd3 11.Bd3 Qd3 12.Bf6 gf6 13.Qe2 e5 14.Nc3 Bb7 15.b6 Bb4 16.Qd3 cd3 17.Nb5 Ke7 18.Rb1 Ra6–+ 19.Rb3 Rb6 20.Nc3 Rc8 21.0–0 Ke6 22.Rfb1 Bd5 23.Nd5–/+ Kd5 24.Kf1? Rcb8?? 25.Ne1? e4–+ 26.f3 f5 27.g4?! a4 28.R3b2 a3 29.Ra2 fg4 30.fe4 Ke4 31.Rb3 Bd6 32.Rd3 Bh2 33.Rd4 Kf5 34.Ra3 Kg5 35.Kg2 Be5 36.Ra5 f6 37.Nd3 Re8 38.Ne5 Re5 39.Raa4 h5 40.Ra8 f5 41.Kg3 h4 42.Kg2 Rg6 43.Rf4 h3 44.Kg3 Ree6?? 45.Ra5= Ref6 46.e4 (46.e4 Kh5 47.d4+=) 1–0. orangutanb4 (1935) – chessgambleer (1765), 2011.

6.c4 c5

7.Qb3 A) 7...Bd6 8.Nc3 Nbd7 9.Nf3 Nb6 10.Na4 Na4 11.Qa4 b6 12.Ne5 Bb7 13.Nc6; B) 7...Nbd7 8.Nf3 (8.Nc3 Nb6 9.Nf3 a4 10.Qc2 Bd6 11.d3 0–0 12.Be2 Qe7 13.0–0; 8.cd5 ed5 9.Nf3 Bd6 10.Nc3 Nb6 11.Be2 0–0 12.0–0 Bf5 13.a4) 8...Nb6 9.Nc3 a4 10.Qc2 Bd6 11.d3 0–0 12.Be2 Bd7 13.0–0; C) 7...a4 8.Qc2 (8.Qa2 Bd6 9.Nf3 Nbd7 10.Bd3 e5 11.Nh4 e4 12.Bc2 dc4 13.Nc3; 8.Qd1 Nbd7 9.Nf3 Bd6 10.Nc3 0–0 11.Be2 dc4 12.Bc4 b6 13.Na4) 8...Bd6 9.Nc3 Nbd7 10.Nf3 0–0 11.Be2 Nb6 12.d3 Bd7 13.0–0.

7.Nc3 A) 7...Nbd7 8.Nf3 (8.Qb3 a4 9.Qc2 d4 10.Ne4 Ne4 11.Qe4 Nf6 12.Qc2 e5 13.Bd3; 8.Be2 Bd6 9.Nf3 b6 10.Qc2 0–0 11.0–0 Bb7 12.cd5 ed5 13.a4; 8.cd5 ed5 9.Nf3 Bd6 10.Qc2 0–0 11.Be2 Nb6 12.0–0 g6 13.d3; 8.h3 Bd6 9.Nf3 0–0 10.Be2 b6 11.0–0 Bb7 12.cd5 ed5 13.Qc2) 8...Bd6 9.Qb3 Nb6 10.Na4 Na4 11.Qa4 0–0 12.Bd3 b6 13.Ne5; B) 7...Bd6 8.Nf3 (8.Qb3 dc4 9.Bc4 Nbd7 10.Nf3 b6 11.0–0 Bb7 12.a4 0–0 13.Be2; 8.Be2 Nbd7 9.Nf3 b6 10.0–0 0–0 11.Qc2 Bb7 12.cd5 ed5 13.a4; 8.Bd3 Nbd7 9.Nf3 0–0 10.0–0 Nb6 11.Qe2 Bd7 12.a4 h6 13.h3; 8.Qc2 Nbd7 9.Nf3 0–0 10.cd5 ed5 11.Be2 b6 12.0–0 Bb7 13.a4) 8...Nbd7 9.Qb3 Nb6 10.Na4 Na4 11.Qa4 0–0 12.Bd3 b6 13.Ne5.

7.cd5 ed5 8.Nf3 (8.Nc3 Bd6 9.Nf3 Nbd7 10.Qc2 0–0 11.Be2 Nb6 12.d4 c4 13.Ne5; 8.Bd3 Bd6 9.Nf3 Nbd7 10.0–0 0–0 11.Nc3 Nb6 12.Ne2 Qe7 13.Qc2; 8.Bf6 Qf6 9.Nc3 Be6 10.Nge2 Bd6 11.g3 Nd7 12.Bg2 Nb6 13.Nf4; 8.Be2 Bd6 9.Nf3 0–0 10.Nc3 Nbd7 11.0–0 Nb6 12.d4 c4 13.Ne5; 8.Qc2 Bd6 9.Nf3 0–0 10.Nc3 Nbd7 11.Bd3 Nb6 12.0–0 g6 13.h3) 8...Nbd7 9.Nc3 Bd6 10.Bd3 0–0 11.0–0 Nb6 12.Ne2 c4 13.Bc2.

7.Be2 A) 7...Bd6 8.Bf6 (8.Nf3 Nbd7 9.0–0 b6 10.Bd3 0–0 11.Nc3 Bb7 12.g3 dc4 13.Bc4; 8.Nc3 Nbd7 9.Nf3 b6 10.cd5 ed5 11.0–0 0–0 12.Qc2 Bb7 13.a4; 8.Qb3 Nbd7 9.Nf3 b6 10.0–0 0–0 11.Nc3 Bb7 12.cd5 ed5 13.a4; 8.Qc2 0–0 9.Nf3 Nbd7 10.Nc3 b6 11.0–0 Bb7 12.cd5 ed5 13.a4; 8.cd5 ed5 9.Nf3 0–0 10.0–0 Nbd7 11.Qc2 Nb6 12.a4 g6 13.d3) 8...Qf6 9.Nc3 Be5 10.Qc2 Nd7 11.Nf3 Bc3 12.Qc3 Qc3 13.dc3; B) 7...dc4 8.Nf3 (8.a4 Be7 9.Nf3 0–0 10.0–0 Nbd7 11.Qc2 Nd5 12.Na3 c3 13.dc3; 8.Nc3 Nbd7 9.Nf3 Bd6 10.Qc2 Nb6 11.Na4 Na4 12.Qa4 b6 13.0–0; 8.Bc4 Nbd7 9.Nf3 Bd6 10.Nc3 b6 11.0–0 0–0 12.d4 Bb7 13.d5; 8.Qc2 Nbd7 9.Nf3 b6 10.Bc4 Bb7 11.d3 Bd6 12.Nbd2 0–0 13.0–0) 8...Nbd7 9.a4 Nb6 10.0–0 Bd6 11.Na3 c3 12.Bc3 0–0 13.Bb2; C) 7...Nbd7 8.cd5 (8.Nf3 Bd6 9.Nc3 0–0 10.Qb3 Nb6 11.d3 a4 12.Qc2 Bd7 13.0–0; 8.Nc3 Bd6 9.Nf3 b6 10.g3 0–0 11.0–0 Bb7 12.cd5 ed5 13.Qc2; 8.d3 Bd6 9.Nf3 0–0 10.Nbd2 b6 11.0–0 Bb7 12.Qc2 Qc7 13.Bc3 ; 8.Qc2 Bd6 9.Nf3 0–0 10.0–0 b6 11.Nc3 Bb7 12.cd5 ed5 13.a4) 8...ed5 9.Nf3 Bd6 10.0–0 0–0 11.Nc3 Re8 12.d4 c4 13.a4.

7.Nf3 b6 (7...Bd6 8.d4= (8.Bf6 Qf6 9.Nc3 Qf5 10.d4 0–0 11.cd5 ed5 12.dc5 Bc5 13.Bd3) 8...Nbd7 9.Nc3 0–0 10.cd5 ed5 11.Be2 c4 12.0–0 b6 13.Qc2; 7...Nbd7 8.Nc3 (8.Be2 Bd6 9.Nc3 Nb6 10.d3 Bd7 11.h3 0–0 12.0–0 a4 13.e4; 8.Qb3 Bd6 9.Nc3 Nb6 10.Na4 0–0 11.Nb6 Qb6 12.Bd3 a4 13.Qc2; 8.Bd3 Bd6 9.Nc3 0–0 10.0–0 Nb6 11.Qe2 Bd7 12.h3 h6 13.a4; 8.Qc2 Bd6 9.Bd3 0–0 10.0–0 b6 11.cd5 ed5 12.Nc3 Bb7 13.h3; 8.cd5 ed5 9.Nc3 Bd6 10.Be2 0–0 11.0–0 Nb6 12.d4 Nc4 13.Bc4) 8...Bd6 9.Bd3 0–0 10.0–0 Nb6 11.Qe2 dc4 12.Bc4 Qc7 13.Bd3) 8.d4+= (8.Nc3 Nbd7 9.cd5 ed5 10.Bd3 Bd6 11.a4 0–0 12.0–0 Bb7 13.Qc2; 8.cd5 ed5 9.Bf6 Qf6 10.Nc3 Be6 11.Bd3 Nd7 12.0–0 c4 13.Bc2) 8...Bb7 (8...Nbd7 9.Nc3 Bb7 10.cd5 ed5 11.dc5 Bc5 12.Bd3 0–0 13.0–0) 9.cd5 Nd5 (9...Qd5 10.Nc3 Qh5 11.Be2+= Nbd7 12.0–0 Bd6 13.Ne5; 9...ed5 10.Nc3 Nbd7 11.dc5 Nc5 12.Ne5 Be7 13.Be2) 10.Bc4 (10.dc5 bc5 (10...Bc5 11.Bg7 Rg8 12.Bb2 Nd7 13.Nbd2) 11.e4 (11.Nbd2 Nd7 12.Qc2 Qc7 13.Nc4) 11...Nf6 12.Qd8 Kd8+/– 13.e5; 10.Nc3 Nd7 11.Bc4 Be7 12.0–0 0–0 13.Rc1) 10...Nd7+= (10...cd4 11.Qd4 Qf6 12.e4 Bc5 13.Qd2) 11.0–0 N7f6 (11...Bd6 12.Nc3 0–0 13.Rc1) 12.Nbd2 (12.Nc3 Nc3 13.Bc3) 12...Be7 (12...cd4 13.Bd4) 13.g3 (13.Qa4 Rc8+=; 13.e4+=) 13...0–0= 14.e4 Nc7 15.Qe2 Qc8 16.Bd3 Re8 (16...Qd8 17.dc5 Bc5 18.Nb3+=) 17.Nc4+/– Nb5? (better is 17...Nd7 18.Nfe5 Nb5 19.Nd7 Qd7 20.Nb6 Nd4 21.Nd7 Ne2 22.Be2 Red8+/–) 18.Nb6+– Qc6 (18...Qd8 19.dc5 Na7 20.Na8 Qa8 21.Bf6 Bf6+–) 19.Na8 (19.Bb5?! Qb6 20.dc5 Qc5 21.Be8 Re8+/–) 19...Nd4 (19...Ra8 20.d5 ed5 21.Bb5+–) 20.Nd4 cd4 21.Rac1 Qa4 (21...Qd7 22.Rc7 Qd8 23.Rb7 Qa8 24.Rb5+–) 22.Nb6 Qb3 23.Nc4 Rc8 (23...e5 24.f4 (worse is 24.Ne5 Ba3 25.Ba3 Qa3+–) 24...Nd7 25.Na5+–) 24.Na5 Qb6 25.Nb7 Qb7 (25...Rc1 26.Rc1 Qb7+–) 26.Ba6 (26.Ba6 Rc1 27.Bb7+–) 1–0. pierre – tjipell, internet, 2010.

6.c4 Bd6

7.Qc2 0–0 8.Nf3 Qe7 9.Ng5 e5 10.cd5 cd5 11.Nc3 g6 12.h4 d4 13.Nce4 Ne4 14.Qe4 Bf5 15.Qd5 1–0. combijack (1810) – omkar2205, gameknot.com, 2011.

7.Qc2 dc4 8.Bc4 Nbd7 9.Nf3 Nb6 10.bc6 bc6 11.Be2 c5 12.Nc3 0–0 13.Ne4 Ne4 14.Qe4 Rb8 15.Rb1 f5 16.Qc2 Qe7 17.Bc3 a4 18.Ne5 Qc7 19.f4 Bb7 20.Rb6 (20.0–0!?=) 20...Qb6+= 21.Nd7 Qd8 22.Nb8 Bg2 (worse is 22...Qb8 23.Qa4 Bd5 24.0–0+=) 23.Rg1? (better is 23.Nd7!? Qh4 24.Kd1 Bh1 25.Nf8 Qh2 26.Qa4 Bf8 27.Bc4+=) 23...Qh4–+ 24.Kd1 Qh2 25.Re1 Rb8 (25...Bb8?! 26.Qa4 Bd5 27.Bc4–/+) 26.Qa4?? (better is 26.Bc4 Bd5 27.Bd5 Qh5 28.Kc1 ed5 29.Qa4–+) 26...Rb1 27.Kc2 Be4 28.Bd3 Bd3 29.Kd3 Re1 30.Qe8 Bf8 31.Qe6 Kh8 32.Qf5?? Qe2–+ 33.Ke4 Qc4 34.d4 Re3! 35.Ke3 Qc3 36.Ke2 Qb2 37.Kf1 Qc1 38.Ke2 Qb2 39.Kf1 Qb5 40.Kf2 Qe8 41.dc5 g6 42.Qf6 Bg7 43.Qd6–/+ Qf8 44.Ke3 Qd6 45.cd6 Bf6 46.Ke4 h5 47.Kd5? h4 48.a4 h3 49.a5 h2 0–1. combijack (1760) – fujin (1685), gameknot.com, 2011.

7.Nc3 0–0 8.Nf3 (8.d4 b6 9.Nf3 Bb7 10.Bd3 dc4 11.Bc4 Nbd7 12.0–0 c5 13.d5) 8...Qc7 9.d4 b6 10.Bd3 dc4 11.Bc4 Bb7 12.bc6 Nc6 13.Nb5.

7.Nc3 c5 8.Nf3 (8.Qb3 Nbd7 9.Nf3 Nb6 10.Na4 Na4 11.Qa4 b6 12.Ne5 0–0 13.Nc6; 8.Qc2 Nbd7 9.Nf3 0–0 10.Be2 b6 11.0–0 Bb7 12.cd5 ed5 13.a4; 8.d4 0–0 9.dc5 Bc5 10.Nf3 Nbd7 11.cd5 Nb6 12.de6 Be6 13.Qc2; 8.Bd3 Nbd7 9.Nf3 Nb6 10.Na4 Nc4 11.Bc4 dc4 12.Qc2 b6 13.Qc4) 8...Nbd7 9.d4 Nb6 10.cd5 ed5 11.dc5 Bc5 12.Rc1 Qe7 13.Be2.

7.Nc3 Qc7 8.Nf3 (8.Rc1 0–0 9.Nf3 Qe7 10.Be2 Nbd7 11.bc6 bc6 12.Nd4 Ne5 13.cd5; 8.d4 dc4 9.Nf3 0–0 10.Bc4 Nbd7 11.0–0 c5 12.Rc1 Rd8 13.Qe2; 8.bc6 bc6 9.Nf3 0–0 10.d4 Nbd7 11.Rb1 Be7 12.Bd3 Ba6 13.Qe2; 8.Be2 0–0 9.Nf3 Nbd7 10.0–0 Nb6 11.d3 Bd7 12.Qd2 h6 13.h3) 8...0–0 9.d4 b6 10.Rc1 Bb7 11.cd5 ed5 12.bc6 Nc6 13.Bd3.

7.Nc3 Nbd7 8.Nf3 (8.d4 c5 9.Nf3 0–0 10.cd5 Nd5 11.dc5 Nc5 12.Nd5 ed5 13.Qd5; 8.Be2 0–0 9.Nf3 Nb6 10.d3 Bd7 11.0–0 h6 12.h3 Qe7 13.e4) 8...0–0 9.d4 c5 10.cd5 Nd5 11.Bd3 Nc3 12.Bc3 cd4 13.Bd4.

7.Nc3 e5 8.d4 e4 9.c5 Be7 10.bc6 bc6 11.Rb1 0–0 12.f3 ef3 13.Nf3 Ng4 14.Bc1 Bg5 (14...Re8!? 15.Bd3 Bg5 16.Ng5 Qg5=) 15.Ng5+= Qg5 16.Qf3 Bf5 17.Rb6 Re8 Increases the pressure on the backward pawn 18.h4 Qh5 19.Be2 h6 (19...Be6 20.Qg3+=) 20.Qg3+/– Qg6 (better is 20...Be6!?+/–) 21.Nd5!+– Nd7 (21...cd5 A pinning theme 22.Rg6) 22.h5 cd5?? (22...Qg5 23.Rc6 Ne3 24.Qg5 Nc2 (24...hg5?? 25.Ne3 Be4 26.Rc7+–) 25.Kf2 hg5+–) 23.hg6 Nb6 (23...Ngf6 24.gf7 Kf7 25.Rd6+–) 24.gf7 Kf7 25.Bg4 Bg4 26.Qg4 Rab8 27.cb6 Rb6 28.Qd7 Kf8 29.Rf1 Rf6 30.Rf6 gf6 If Black now would get Re7 in, he might survive 31.a4 Re7 32.Ba3 Kg7 33.Qe7 1–0. Nekthen – WaterDragon, ChessWorld.net, 2008.

7.bc6 A) 7...Nc6 8.Nf3 (8.Nc3 Qb6 9.Nb5 Be7 10.Nf3 0–0 11.Bd3 Bd7 12.Qc2 Rac8 13.Rc1) 8...0–0 9.Nc3 Bd7 10.Nb5 Be7 11.Bd3 Ne4 12.0–0 Qb6 13.Rc1; B2) 7...bc6 8.cd5 (8.d4 0–0 9.Nf3 Nbd7 10.Nc3 Rb8 11.Rb1 Ba6 12.c5 Bf1 13.Kf1; 8.Nc3 0–0 9.Nf3 Nbd7 10.Rb1 Ba6 11.cd5 Bf1 12.Kf1 cd5 13.Nb5; 8.Nf3 0–0 9.cd5 ed5 10.Qc2 g6 11.Nc3 Bf5 12.d3 Na6 13.Na4; 8.Qc2 Nbd7 9.Nf3 0–0 10.Nc3 Ba6 11.Be2 Rb8 12.0–0 Nc5 13.cd5; 8.Ne2 Nbd7 9.Nbc3 Ba6 10.Nd4 dc4 11.Rb1 Qc7 12.g3 0–0 13.Bg2) 8...ed5 9.Nf3 0–0 10.Qc2 Re8 11.Nc3 g6 12.Be2 Na6 13.Na4.

7.d4 0–0 8.Nc3 (8.Nf3 b6 9.Nc3 Bb7 10.Bd3 dc4 11.Bc4 Nbd7 12.0–0 c5 13.d5) 8...Nbd7 9.c5 Bc7 10.Qa4 Ne4 11.Nf3 cb5 12.Bb5 Ndf6 13.0–0.

7.d4 cb5 8.c5 Bc7 9.Nc3 0–0 10.Nf3 Bd7 11.Bd3 b6 12.Nb5 Bb5 13.Bb5.

7.d4 b6 8.Nc3 0–0 9.Nf3 Bb7 10.Be2 c5 (10...dc4 11.Bc4 Nbd7 12.bc6 Bc6 13.Nb5=) 11.0–0 (11.dc5 Bc5 12.0–0 dc4 13.Bc4 Qc7=) 11...dc4 12.dc5 Bc5 13.Qd8 (13.Bc4 Qc7 14.Qe2 Rc8=) 13...Rd8 14.Ne5 Nbd7 15.Nc4 Rac8 16.Na4 Bd5 17.Nc5 (17.Rac1 Bc4 18.Bc4 Bd6=) 17...Rc5 18.Rfc1 (18.Bf6 gf6 19.Nd2 Rc2=) 18...Bc4 (18...Rb5 19.Bd4+=) 19.Bc4= Rdc8 20.Ba2 (20.Bd3 Rc1 21.Rc1 Rc1 22.Bc1 Nc5+=) 20...a4 21.Rab1 (21.Rc5 Rc5 22.Rc1 Rb5=) 21...Rc2+= 22.Rd1 h6 (22...Nc5 23.Rd6=) 23.Rbc1= R8c5 Black gets the initiative 24.Rc2 Rc2 25.Bf6 gf6 (25...Nf6?? 26.Rd8 Kh7 27.Bb1+–) 26.Bb1 Rc3 27.Bd3 Kf8 (27...Ne5 28.Bf1+=) 28.Bf1 (28.Be2 Ne5 29.f4 Re3+=) 28...Ke7 29.Ra1 Nc5 30.g3 (30.Ra2!?+=) 30...Rc2–/+ 31.Kg2 (31.Bg2 Nb3 32.Rd1 Ra2–/+) 31...f5 32.Kg1 Nb3 33.Rd1 Ra2 34.Bc4 Ra3 35.Rd3 (35.Kf1 Nc5–/+) 35...Ra1–+ 36.Kg2 Nc5 37.Rc3 a3 (37...a3 38.Kf3 Kd6–+) 0–1. Zylla,Johannes – Pommerel,Wim, corr 3GMM–32, 1995.

7.d4 b6 8.Nc3 Bb7 9.cd5 =.

7.d4 dc4 8.Nc3 Nbd7 9.Bc4 Nb6 10.Bd3 Nbd5 11.Nf3 Nc3 12.Bc3 cb5 13.0–0.

7.d4 Nbd7 8.Nd2 (8.c5 Bc7 9.Nf3 0–0 10.Nbd2 Qe7 11.Qa4 cb5 12.Bb5 e5 13.de5; 8.Nf3 c5 9.Nbd2 0–0 10.Bd3 cd4 11.ed4 b6 12.cd5 Nd5 13.0–0; 8.Nc3 c5 9.Nf3 0–0 10.cd5 ed5 11.Be2 c4 12.0–0 b6 13.Qc2) 8...0–0 9.c5 Bc7 10.Ngf3 Qe7 11.Qa4 cb5 12.Bb5 e5 13.Ne5.

7.cd5 A) 7...ed5 8.Nc3 (8.Nf3 0–0 9.Nc3 Nbd7 10.Be2 Nb6 11.0–0 Nc4 12.Bc4 dc4 13.Qa4; 8.Be2 0–0 9.Nc3 Be6 10.Nf3 Nbd7 11.Nd4 Ne5 12.0–0 Qd7 13.Qa4; 8.Qc2 0–0 9.Nf3 Re8 10.Nc3 g6 11.Be2 Bf5 12.d3 c5 13.0–0; 8.d4 Bf5 9.Nf3 0–0 10.Nc3 Nbd7 11.Bd3 Bd3 12.Qd3 Nb6 13.Ne5) 8...0–0 9.Nf3 Nbd7 10.d4 Nb6 11.Qc2 Qc7 12.bc6 bc6 13.Rb1; B) 7...cd5 8.Nf3 (8.Nc3 Nbd7 9.Nf3 0–0 10.Be2 Nb6 11.d3 Bd7 12.0–0 Qe8 13.a4; 8.Be2 Nbd7 9.Nf3 0–0 10.Nc3 b6 11.Nd4 Nc5 12.Rc1 Bb7 13.0–0; 8.d4 0–0 9.Nf3 Nbd7 10.Bd3 b6 11.0–0 Bb7 12.Nc3 Rc8 13.Rc1; 8.Nh3 Nbd7 9.Nc3 0–0 10.Be2 Nb6 11.0–0 Bd7 12.d3 Rc8 13.Rc1; 8.Qc2 Nbd7 9.Nf3 0–0 10.Be2 Nc5 11.Bd4 b6 12.Nc3 Bb7 13.Ne5) 8...Nbd7 9.d4 0–0 10.Bd3 Qe7 11.0–0 e5 12.de5 Ne5 13.Ne5.

7.Be2 A) 7...0–0 8.Nc3 (8.Nf3 cb5 9.cb5 Nbd7 10.Nc3 b6 11.0–0 Bb7 12.d4 Rc8 13.Rc1; 8.cd5 cd5 9.Nc3 Nbd7 10.Nf3 Nb6 11.d3 Bd7 12.0–0 h6 13.Rc1) 8...Nbd7 9.Nf3 Nb6 10.d3 Bd7 11.0–0 Qc7 12.Qd2 h6 13.h3; B) 7...cb5 8.cb5 (8.cd5 ed5 9.Nc3 b4 10.ab4 Bb4 11.Nf3 0–0 12.0–0 Nc6 13.Qc2) 8...Nbd7 9.Nf3 b6 10.Nc3 0–0 11.0–0 Bb7 12.d4 Rc8 13.Rc1; C) 7...Nbd7 8.Nf3 (8.Nc3 Nb6 9.cd5 ed5 10.Nf3 0–0 11.0–0 Qc7 12.bc6 bc6 13.Qc2; 8.cd5 cd5 9.Nf3 0–0 10.Nc3 b6 11.0–0 Bb7 12.d4 Rc8 13.Rc1; 8.d4 dc4 9.bc6 bc6 10.Nd2 Nb6 11.Ngf3 Ba6 12.Ne5 0–0 13.0–0) 8...dc4 9.Nc3 Nb6 10.bc6 bc6 11.Qc2 0–0 12.Ne4 Ne4 13.Qe4; D) 7...h6 8.Nc3 (8.Nf3 0–0 9.Nc3 Nbd7 10.d4 c5 11.0–0 b6 12.Rc1 dc4 13.Bc4; 8.cd5 ed5 9.Nf3 0–0 10.Nc3 c5 11.0–0 Be6 12.Qc2 Nbd7 13.a4) 8...Nbd7 9.Nf3 Nb6 10.bc6 bc6 11.cd5 ed5 12.Nd4 Bd7 13.0–0; E) 7...Qe7 8.Nc3 (8.Nf3 Nbd7 9.d4 0–0 10.c5 Bb8 11.Qa4 cb5 12.Qb5 Ne4 13.Nc3; 8.cd5 cd5 9.Nc3 Nbd7 10.Nf3 0–0 11.0–0 b6 12.Nd4 Nc5 13.Nc6; 8.Qc2 0–0 9.Nc3 Nbd7 10.Nf3 Nb6 11.d3 Bd7 12.bc6 bc6 13.0–0) 8...0–0 9.Nf3 Nbd7 10.0–0 Nc5 11.Qc2 e5 12.bc6 bc6 13.cd5; F) 7...Ne4 8.d3 (8.Qc2 Qg5 9.d3 Nc5 10.Nf3 Qg6 11.Nbd2 Nbd7 12.cd5 cd5 13.g3; 8.Nc3 Qg5 9.g3 0–0 10.Nf3 Qg6 11.Ne4 de4 12.Nh4 Qh6 13.d3; 8.Nf3 0–0 9.Nc3 Nd7 10.Qc2 Nc3 11.Bc3 cb5 12.cd5 ed5 13.Bb5; 8.cd5 ed5 9.d3 Nf6 10.Nf3 0–0 11.Nc3 Be6 12.Nd4 Nbd7 13.0–0; 8.Nh3 0–0 9.Nc3 Nd7 10.cd5 cd5 11.Ne4 de4 12.0–0 Nc5 13.Nf4) 8...Nc5 9.Nf3 dc4 10.dc4 0–0 11.Nc3 Qc7 12.Qc2 Nbd7 13.0–0; G) 7...dc4 8.Nc3 (8.Bc4 Nbd7 9.bc6 bc6 10.Nf3 Rb8 11.Ra2 0–0 12.Nc3 e5 13.0–0) 8...Nbd7 9.Nf3 Nb6 10.bc6 bc6 11.Qc2 0–0 12.Ne4 Ne4 13.Qe4.

7.Nf3 A) 7...Nbd7 8.d4 (8.Nc3 0–0 9.d4 c5 10.cd5 ed5 11.dc5 Nc5 12.Nd5 Nd5 13.Qd5; 8.Be2 dc4 9.Nc3 Nb6 10.bc6 bc6 11.Qc2 0–0 12.Ne4 Ne4 13.Qe4; 8.Qc2 0–0 9.Nc3 Nb6 10.cd5 cd5 11.Bd3 e5 12.Be2 Bd7 13.0–0) 8...c5 9.Nbd2 0–0 10.Bd3 b6 11.0–0 Bb7 12.Qe2 Qe7 13.e4; B) 7...0–0 8.Nc3 (8.d4 b6 9.Nc3 Bb7 10.Bd3 dc4 11.Bc4 Nbd7 12.0–0 Rc8 13.bc6) 8...Nbd7 9.d4 Ne4 10.c5 Bc7 11.b6 Bb8 12.Bd3 f5 13.0–0; C) 7...h6 8.d4 (8.Nc3 0–0 9.d4 b6 10.Bd3 Bb7 11.0–0 c5 12.dc5 bc5 13.Qe2) 8...b6 9.Nc3 0–0 10.Bd3 Bb7 11.0–0 dc4 12.Bc4 Nbd7 13.bc6; D) 7...cb5 8.cd5 ed5 9.Bf6 Qf6 10.Nc3 Nc6 11.Nd5 Qg6 12.Bb5 0–0 13.Nb6.

6.c4 Nbd7

7.Nc3 A) 7...dc4 8.Nf3 (8.Bc4 Ne5 9.Qe2 Nc4 10.Qc4 Bd7 11.Nf3 Rc8 12.Qd3 Qc7 13.a4) 8...cb5 9.Nb5 Nb6 10.d3 Bd7 11.dc4 Rc8 12.Rc1 Bb5 13.Qd8; B) 7...Be7 8.Nf3 (8.d4 cb5 9.cd5 b4 10.ab4 Nd5 11.ba5 Bb4 12.Nge2 N7f6 13.g3; 8.Qc2 0–0 9.Nf3 Nb6 10.bc6 bc6 11.cd5 cd5 12.Rb1 Bd7 13.Ne5; 8.cd5 cd5 9.Nf3 0–0 10.Rc1 Nc5 11.Be2 Qd6 12.0–0 Bd7 13.d4; 8.Be2 dc4 9.Nf3 0–0 10.bc6 bc6 11.Bc4 Ba6 12.Ba6 Ra6 13.0–0) 8...Nc5 9.d4 Nce4 10.bc6 bc6 11.Ne5 Qc7 12.Bd3 Rb8 13.Qc2; C) 7...Nb6 8.bc6 (8.Nf3 Nc4 9.Bc4 dc4 10.bc6 bc6 11.Qa4 Qc7 12.Ne5 Bc5 13.Nc4; 8.cd5 cd5 9.Nf3 Bd7 10.Ne5 Bd6 11.f4 0–0 12.Bd3 Qc7 13.Na4) 8...Nc4 9.Bc4 dc4 10.Qa4 bc6 11.Nf3 Qc7 12.Ne5 Be7 13.Rb1.

7.d3 Bd6 8.Nd2 cb5 9.cb5 b6 10.Ngf3 Bb7 11.d4 Ne4 12.Be2 Rc8 13.Rc1 Rc1 14.Qc1 (worse is 14.Bc1 Nc3 15.Qb3 Ne2 16.Ke2 0–0+=) 14...Qb8 15.h3 0–0 16.Ne4 de4 17.Nd2 Rc8 18.Qb1 Qc7 19.Ne4 (better is 19.Nc4!?=) 19...Be4–/+ 20.Qe4 Qc2 21.Bd3 Qb2 22.Qh7 Kf8 23.Qh8 Ke7 24.Qc8 Qa1 25.Ke2 Qh1 26.Be4 Qa1 (26...Ba3? 27.Bc6 Qb1 28.Qd7 (28.Bd7?! Qa2 29.Ke1 Qb1 30.Ke2 Qa2 31.Kf1 Qb1 32.Ke2=) 28...Kf6 29.Qd8 Kg6 30.Qc7+–) 27.Bc6 Qa2 28.Kf3 Nf8 (better is 28...Nf6!? 29.Qb7 Kf8 30.Qb6 Kg8 31.Qa5 Ba3 32.Qa8 Kh7+=) 29.g4+– g5 (29...Qa3?? 30.g5 Qe3 31.fe3 Bb4 32.Qe8 Kd6 33.Qd8 Nd7 34.Qd7#) 30.h4! Qc2 (30...gh4 31.Qb7 Double attack) 31.Qe8 Kf6 32.Qd8 Kg7 33.Qd6 Qd1 34.Kg3 (better is 34.Kg2 Qg4 35.Qg3 Qh4 36.Qe5 Kg8 37.Kf1+/–) 34...gh4? (better is 34...Qg1 35.Kh3 Qf2 36.Qe5 f6+=) 35.Kh4+– Qg1 36.Qg3 Qf1 (36...Ng6 37.Kh3 Qc1 38.Kg2+–) 37.Qf3 (37.Qe5!? Kg8 38.Kg3 Ng6 39.Qb8 Kg7 40.Qb6 Qg1 41.Bg2 Nh4+–) 37...Qg1 38.Qg3 Ng6?? (38...Qf1 39.Qe5 Kg8+–) 39.Kh3+– Qf1 40.Qg2 Qd3 41.Be4 Qb5 42.Bg6 Kg6 43.Qe4 Kg7 44.a4 Qa4= 45.Qe5 Kf8 46.Qd6+= Ke8 47.Qb8 Ke7 48.Qb7 Qd7 49.Qb6 a4 50.Qc5 Ke8 51.Qb4 Qa7 52.Qa3 f6 53.Qd6 Kf7= 54.d5 ed5 55.Qd5 Kg7 56.g5 a3 57.gf6 Kf6 58.Qd6 Kf7 59.Qd5 Ke7 60.Qe5 Kd8 61.Qh8 Kc7 62.Qg7 Kb8 63.Qf8 Kb7 64.Qe7 Kb6 65.Qd6 Kb5 66.Qd3 Kb4 67.Qd2 Kc4 68.Qc2 ˝–˝. De Visser,A (1880) – Goudriaan,E (2245), HSG Open, Hilversum NED, 2010.

7.d4 a4 8.Nf3 (8.Nc3 Qa5 9.Nf3 cb5 10.cb5 Bd6 11.Bd3 b6 12.0–0 Bb7 13.Rb1; 8.Nd2 Qa5 9.Ngf3 cb5 10.cb5 Nb6 11.Ne5 Ne4 12.Bd3 Bd6 13.Rc1; 8.cd5 Nd5 9.e4 Qa5 10.Qd2 N5f6 11.Nc3 Be7 12.Nf3 0–0 13.Bd3) 8...cb5 9.cb5 Bd6 10.Bd3 Qa5 11.Qd2 0–0 12.0–0 Qd2 13.Nbd2.

7.d4 cb5 8.cd5 (8.c5 Ne4 9.Nc3 b4 10.Ne4 ba3 11.Ra3 de4 12.Qc2 b6 13.Qe4; 8.cb5 Ne4 9.Nc3 Ndf6 10.Bd3 Bd7 11.Nge2 Bd6 12.f3 Nc3 13.Nc3) 8...Nd5 9.Bb5 Qb6 10.Qd3 Nc7 11.Nc3 Nb5 12.Qb5 Be7 13.Nf3.

7.d4 Nb6 8.c5 (8.Nd2 dc4 9.bc6 Qd5 10.Ngf3 bc6 11.Qc2 Ba6 12.Rb1 Be7 13.e4) 8...Nc4 9.Bc4 dc4 10.Nc3 cb5 11.Nb5 Bd7 12.a4 b6 13.Nf3.

7.d4 dc4 8.bc6 bc6 9.Nd2 c3 10.Bc3 Nd5 11.Qc2 c5 12.Ngf3 Nc3 13.Qc3.

7.d4 Ne4 8.Nf3 Be7 9.Nc3 0–0 10.cd5 ed5 11.Qc2 f5 12.Bd3 Rf6 13.0–0.

7.d4 Be7 =.

7.d4 g6 8.Nf3 (8.Nc3 Bg7 9.Nf3 0–0 10.Bd3 c5 11.cd5 ed5 12.0–0 b6 13.h3; 8.Nd2 Be7 9.Ngf3 0–0 10.Rc1 Rb8 11.c5 Ne4 12.Qb3 Ndf6 13.bc6) 8...Bg7 9.cd5 cd5 10.Bd3 0–0 11.Nc3 b6 12.0–0 Bb7 13.Qe2.

7.cd5 A) 7...ed5 8.Qc2 (8.Nf3 Bd6 9.Nc3 0–0 10.d4 Nb6 11.Qc2 Re8 12.bc6 bc6 13.Bd3; 8.Nc3 Bd6 9.Nf3 0–0 10.Be2 Nc5 11.0–0 Bd7 12.bc6 Bc6 13.Nd4; 8.d4 Bd6 9.Nc3 0–0 10.Nf3 Nb6 11.Qc2 Re8 12.bc6 bc6 13.Bd3; 8.bc6 bc6 9.Qc2 Rb8 10.Nf3 Qb6 11.Bd4 c5 12.Bf6 Nf6 13.Nc3) 8...Qc7 9.Nc3 Bd6 10.bc6 bc6 11.Rc1 Nc5 12.Na4 Na4 13.Qa4; B) 7...cd5 8.d4 (8.Nf3 Bd6 9.d4 0–0 10.Bd3 b6 11.0–0 Bb7 12.Nc3 Rc8 13.Rc1; 8.Nc3 Bd6 9.Nf3 0–0 10.Be2 b6 11.0–0 Bb7 12.d4 h6 13.Rc1) 8...Ne4 9.Nc3 Ndf6 10.Bd3 Bd7 11.Nge2 Bd6 12.f3 Nc3 13.Nc3.

7.Nf3 dc4 8.Bc4 Nb6 9.Be2 cb5 10.Bb5 Bd7 11.Be2 Rc8 12.Nc3 Be7 13.Ne5 0–0 14.Nd7 Nfd7 15.0–0 Nc4 16.Bc1 Bf6 17.Qb3 Ndb6 18.Ra2 Qd7 19.a4 Bc3=+ 20.dc3 Qc7 21.e4 Rfd8 22.Bg5 Rd7 23.Rb1 h6 24.Bc1 Qd8 25.Qc2 Rc6 26.Ba3?? Na3–+ 27.Ra3 Rd2 28.Qb3 Re2 29.Raa1 Qd2 30.Rd1 Qc3 31.Qb5 Qb2 32.Qh5 Rf2 33.Qg4 Rcc2 0–1. Otte,Marco – Bonnier,Frans, Wag.Intcomp, 1997.

7.Nf3 c5 8.d4 (8.Qb3 Bd6 9.Nc3 Nb6 10.Na4 Na4 11.Qa4 b6 12.Ne5 Ne4 13.Nc6; 8.Nc3 Bd6 9.Qb3 Nb6 10.Na4 Na4 11.Qa4 0–0 12.Bd3 b6 13.Ne5; 8.Be2 Bd6 9.Nc3 0–0 10.0–0 Nb6 11.d3 Bd7 12.a4 h6 13.Qb3; 8.Bd3 dc4 9.Bc4 Nb6 10.Be2 Bd6 11.Nc3 0–0 12.0–0 e5 13.Qc2; 8.Qc2 Bd6 9.Nc3 0–0 10.Be2 b6 11.cd5 ed5 12.0–0 Bb7 13.a4) 8...Be7 9.Nc3 0–0 10.cd5 ed5 11.Be2 Nb6 12.0–0 Be6 13.dc5.

7.Nf3 Nc5 8.Qc2 (8.Nc3 Bd7 9.Qc2 Be7 10.Ne5 Bd6 11.Nd7 Qd7 12.bc6 bc6 13.d4; 8.Bd4 Bd6 9.Qc2 Qe7 10.bc6 0–0 11.Bc5 Bc5 12.d4 Ba7 13.cb7; 8.bc6 bc6 9.Bd4 Be7 10.Qc2 0–0 11.cd5 Qd5 12.Nc3 Qb3 13.Qc1; 8.d4 Nce4 9.Ne5 Nd7 10.Nc3 Ne5 11.de5 Qh4 12.Qc2 Nc3 13.Bc3; 8.cd5 cd5 9.Nc3 Bd6 10.Na4 0–0 11.Nc5 Bc5 12.Bd3 Bd7 13.Ne5) 8...Bd6 9.d4 Nce4 10.Nc3 cb5 11.Nb5 0–0 12.Bd3 Bb8 13.Nc3.

7.Nf3 Bd6 8.Nc3 (8.d4 0–0 9.Nc3 c5 10.cd5 ed5 11.dc5 Nc5 12.Nd5 Nd5 13.Qd5) 8...0–0 9.d4 c5 10.cd5 Nb6 11.dc5 Bc5 12.Rc1 Qe7 13.Na4.

7.Nf3 Be7

8.Qc2 0–0 9.Nc3 Nb6 10.bc6 bc6 11.cd5 cd5 12.Rb1 Rb8 13.Nb5.

8.Nc3 0–0 9.Be2 Nb6 10.cd5 cd5 11.Rc1 Qd6 12.Na4 Na4 13.Qa4.

8.d4 0–0 9.Nc3 Qc7 10.cd5 Nd5 11.Nd5 ed5 12.Qc2 c5 13.Bd3.

8.cd5 ed5 9.Qc2 0–0 10.Nc3 Nc5 11.d4 Nce4 12.bc6 bc6 13.Ne5.

8.Be2 0–0 9.Nc3 Nb6 10.cd5 cd5 11.Rc1 Qd6 12.Na4 Na4 13.Qa4.

8.Be2 dc4 9.Bc4 Nb6 10.Be2 Bd7 11.a4 cb5 12.ab5 0–0 13.0–0 Nfd5 14.Ne1 Qc7 15.Na3 Rfc8 16.Rc1 Qd8 17.Rc8 Qc8 18.Qa1 Ba3 19.Ba3 Nc4 20.Bc4 (better is 20.Nf3!? Na3 21.Qa3=) 20...Qc4–/+ 21.Nf3 Bb5 22.Rb1 Bc6 23.Nd4 Qa6 24.Bb2 Be8 25.Nb3 f6 26.e4 Nf4 27.g3? (27.Nc5 Qc6 28.Bd4 b6–+) 27...Nh3 (better is 27...Ne2!? 28.Kg2–+) 28.Kg2 Ng5 29.Re1 Bh5 30.h4 (30.Nd4–+) 30...Bf3 31.Kh2 Nf7 32.Nd4 Bh5 33.Qa2 Ne5 34.Kg2 Bf7 35.Bc3 Nd3 36.Ra1 e5 37.Qb1 a4 38.Nb5 Rd8 39.Na3 Qc6 40.f3 Qc5 41.Qg1 Qc6 42.Rb1?? Bb3–+ 43.Qa7 b5 44.Qa5 Rb8 45.Qa7 Ra8 46.Qe7 Qb6 47.Bb4 Qf2 48.Kh3 Qf3 49.Rg1 Nf4 50.Kh2 Qe2 51.Kh1 Qe4 52.Kh2 Qe2 (52...Qe2 53.Kh1 Bd5 54.Rg2 Qg2 mate) 0–1. Frosinos,I (1750) – Pap,M (2500), Paleochora GRE, 5th Open, 2012.

6.c4 Be7

7.a4 0–0 8.Nf3 Nbd7 9.Be2 Qc7 10.0–0 Rd8 11.d3 Ne8 12.cd5 cd5 13.Nbd2 Bf6 14.d4 Nd6 15.Qb3 Be7 16.Rac1 Qb6 17.Bd3 Nf6 18.Ne5 Bd7 19.Ba3 Rac8 20.Ndf3 Bf8 21.g4 h6 22.h4 Rc1 23.Rc1 Nfe4 24.Bc5 Qc7 25.Qb2 Nc5 26.dc5 (26.Nd7? A) worse is 26...Qd7 27.dc5 (worse is 27.Rc5 Nc4 28.Rc4 dc4 29.Bc4 Bd6–/+) 27...Ne4 28.c6+=; B) 26...Rd7?! 27.Rc5 Qd8 28.Rc2=; C) 26...Nd3 27.Rc7 Nb2–+) 26...Nc8 (better is 26...Ne4!? 27.Qc2 Be8 28.Be4 de4 29.Qe4 Rd5=) 27.b6+/– Qb8 28.Ng5?? (better is 28.Nd7 Rd7 29.Ne5+/–) 28...hg5–+ 29.hg5 Ne7 30.g6 fg6 31.f4 Nc6 32.Qh2 Ne5 33.fe5 Be8 (33...Ba4?? 34.Bg6 Bc5 35.Qh7 Kf8 36.Rf1 Ke7 37.Qg7) 34.Kg2 (34.Kg2 d4 35.c6 Bc6 36.Rc6 de3 37.Rc3–+). Lertora,Lucio – Smith,Jonathan D, ICCF World Cup8–9 prel–104, 1990. (=1.c4 Nf6 2.b4 e6 3.a3 a5 4.b5 c6 5.Bb2 d5 6.e3 Be7)

7.Qc2 0–0 8.Nf3 (8.Nc3 Nbd7 9.Nf3 Nb6 10.bc6 bc6 11.cd5 cd5 12.Rb1 Bd7 13.Ne5; 8.bc6 Nc6 9.Nf3 Bd7 10.Nc3 Rc8 11.cd5 ed5 12.Bb5 Ne5 13.Ne5) 8...Nbd7 9.Nc3 Nb6 10.bc6 bc6 11.Rb1 Ba6 12.cd5 Bf1 13.Kf1.

7.Qc2 cb5 8.cd5 (8.cb5 0–0 9.Nf3 Nbd7 10.Nc3 b6 11.Be2 Bb7 12.0–0 Rc8 13.a4) 8...0–0 9.Nf3 ed5 10.Bb5 Nc6 11.Nc3 Bg4 12.0–0 Bf3 13.gf3.

7.Qc2 dc4!? 8.Nc3 0–0 =.

7.Qc2 Bd6 8.c5 (8.Nf3 Nbd7 9.bc6 bc6 10.cd5 cd5 11.Nc3 0–0 12.Nb5 Be7 13.Rc1; 8.d4 cb5 9.c5 Bc7 10.Nc3 b4 11.ab4 Nc6 12.b5 Nb4 13.Qb3; 8.Nc3 Nbd7 9.Nf3 0–0 10.Be2 Nb6 11.bc6 bc6 12.Nd5 cd5 13.c5; 8.cd5 cd5 9.Bf6 gf6 10.Nc3 Nd7 11.Nf3 f5 12.g3 Rg8 13.Nd4; 8.Be2 cb5 9.cd5 0–0 10.Nf3 ed5 11.Nc3 b4 12.ab4 Bb4 13.Nd4) 8...Be7 9.Nf3 0–0 10.d4 b6 11.Nbd2 Qc7 12.Rc1 bc5 13.dc5.

7.Qc2 Nbd7 8.Nc3 (8.Nf3 0–0 9.Nc3 Nb6 10.bc6 bc6 11.cd5 cd5 12.Rb1 Bd7 13.Ne5; 8.cd5 cd5 9.Nf3 0–0 10.Be2 b6 11.Nc3 Bb7 12.0–0 Rc8 13.a4; 8.Be2 cb5 9.cb5 0–0 10.Nf3 b6 11.Nc3 Bb7 12.0–0 Rc8 13.a4) 8...0–0 9.Nf3 Nb6 10.bc6 bc6 11.cd5 cd5 12.Rb1 Bd7 13.Ne5.

7.Qc2 Ne4 8.Bg7+/– Rg8 9.Bb2 Bd6 10.Nc3 Nf6 11.Nf3 e5 12.cd5 cd5 13.h3 Be6 14.g4 h6 15.Na4 Nbd7 16.Be2 Rc8 17.Qb1 Qc7 18.Nh4 Ke7 19.Nf5 Bf5 20.Qf5 Rg5 21.Qd3 e4 22.Qb3 Qc2 23.Qc2 Rc2 24.Bc3 Be5 25.Kd1 Rc3 26.Nc3 Rg8 27.Rc1 Kd6 28.f4 ef3 29.Bf3 Bc3 30.Rc3 (30.dc3?! Ne5 31.Ke2 Nc4+–) 30...Nc5 31.Ke2 (31.Rf1 Ncd7+–) 31...Na4? (better is 31...Nce4+–) 32.Rc2 Nb6 33.Rhc1 Nfd7 34.Rc7 Rb8 35.d3 Na4 36.Rc8 Nac5 (36...Rc8 37.Rc8 Ndb6 38.Rh8 Nc3 39.Kf2 Nb5 40.Rh6 Kc7 41.g5+–) 37.Rb8 (better is 37.R1c5 Rc8 38.Rc8+–) 37...a4 (37...Nb8 38.d4 Ne6+–) 38.Rh8 1–0. combijack (1765) – beatle_john, gameknot.com, 2012.

7.Nc3 A) 7...Nbd7 8.Nf3 (8.d4 cb5 9.c5 0–0 10.Bb5 Ne4 11.Nge2 Ndf6 12.f3 Nc3 13.Nc3; 8.cd5 cd5 9.Nf3 0–0 10.Rc1 Nc5 11.Be2 b6 12.Ne5 Qd6 13.d4; 8.Be2 Nb6 9.cd5 cd5 10.Nf3 0–0 11.Rc1 Qd6 12.Na4 Na4 13.Qa4; 8.Qc2 0–0 9.Nf3 Nb6 10.bc6 bc6 11.cd5 cd5 12.Be2 Ba6 13.d3) 8...0–0 9.d4 c5 10.cd5 ed5 11.Be2 c4 12.0–0 Qc7 13.Qc2; B) 7...Qc7 8.Nf3 (8.d4 0–0 9.Nf3 Nbd7 10.cd5 ed5 11.Rc1 Rd8 12.Be2 c5 13.dc5; 8.Be2 Nbd7 9.Nf3 0–0 10.0–0 Nc5 11.Qc2 Bd7 12.bc6 Bc6 13.cd5; 8.Qc2 0–0 9.Nf3 Nbd7 10.cd5 cd5 11.Rc1 Bd6 12.Be2 b6 13.0–0; 8.cd5 ed5 9.Nf3 0–0 10.Be2 Nbd7 11.0–0 Nc5 12.Rc1 Bf5 13.d4) 8...0–0 9.d4 Nbd7 10.cd5 ed5 11.Rc1 Rd8 12.bc6 bc6 13.Qc2; C) 7...cb5 8.Nb5 (8.cd5 ed5 9.Bb5 Nc6 10.Nf3 0–0 11.0–0 Bf5 12.Rc1 Qd6 13.Qb3; 8.cb5 0–0 9.Rc1 Qd6 10.Nf3 Nbd7 11.Be2 b6 12.0–0 Bb7 13.d4) 8...Nc6 9.Nf3 0–0 10.Bd3 Ne4 11.0–0 Qb6 12.Qc2 f5 13.Ne5; D) 7...h6 8.Nf3 (8.Be2 0–0 9.Nf3 Nbd7 10.0–0 Nb6 11.cd5 ed5 12.bc6 bc6 13.Ne5; 8.Qc2 0–0 9.Nf3 Nbd7 10.Be2 Nb6 11.cd5 cd5 12.0–0 Bd6 13.Na4; 8.d4 0–0 9.Nf3 cb5 10.Nb5 Bd7 11.Rc1 a4 12.Ne5 Bc6 13.Nc6; 8.cd5 ed5 9.Nf3 0–0 10.Qc2 cb5 11.Bb5 Nc6 12.0–0 Be6 13.Rac1) 8...0–0 9.Be2 Nbd7 10.0–0 Bd6 11.Qc2 Qc7 12.d4 c5 13.Rfd1; E) 7...0–0 8.Nf3 (8.d4 cb5 9.cb5 Nbd7 10.Nf3 Nb6 11.Bd3 Qc7 12.Qe2 Bd7 13.Ne5; 8.Qc2 Qd6 9.Nf3 Nbd7 10.d4 c5 11.cd5 ed5 12.Be2 b6 13.0–0; 8.cd5 ed5 9.Nf3 cb5 10.Bb5 Nc6 11.0–0 Bf5 12.Rc1 Rc8 13.Qb3) 8...Nbd7 9.d4 c5 10.cd5 ed5 11.Be2 c4 12.0–0 Qc7 13.Qc2.

7.d4 A) 7...g6 8.Nf3 (8.Nc3 cb5 9.cb5 0–0 10.Nf3 b6 11.Bd3 Bb7 12.0–0 Nbd7 13.Qb3; 8.cd5 ed5 9.Nc3 0–0 10.Nf3 cb5 11.Bb5 Nc6 12.0–0 Bf5 13.Qb3; 8.Nd2 0–0 9.Ngf3 Bd7 10.a4 Bb4 11.Bd3 dc4 12.Bc4 Qb6 13.bc6; 8.Be2 0–0 9.Nc3 cb5 10.cb5 Nbd7 11.Nf3 b6 12.0–0 Bb7 13.Rc1) 8...0–0 9.Nc3 cb5 10.cb5 b6 11.Bd3 Nbd7 12.0–0 Bb7 13.Qb3; B) 7...Nbd7 8.Nc3 (8.Nf3 dc4 9.bc6 bc6 10.Nbd2 c3 11.Bc3 c5 12.Qc2 Qc7 13.Bc4; 8.cd5 Nd5 9.e4 N5f6 10.Nc3 Qc7 11.Nf3 c5 12.Bd3 cd4 13.Nd4) 8...0–0 9.Nf3 c5 10.cd5 ed5 11.Be2 c4 12.0–0 Qc7 13.Qc2; C) 7...0–0 8.Nf3 (8.Nc3 cb5 9.cb5 Nbd7 10.Nf3 Bd6 11.Rc1 Nb6 12.Bd3 Nc4 13.Bc4) 8...cb5 9.cb5 b6 10.Bd3 Bb7 11.Nc3 Nbd7 12.0–0 Ne4 13.Qb3; D) 7...cb5 8.cb5 0–0 9.Nf3 Nbd7 10.Bd3 b6 11.Nc3 Bb7 12.0–0 Ne4 13.Rc1; E) 7...Ne4 8.Nc3 (8.Nf3 0–0 9.Nc3 cb5 10.cb5 Nd7 11.Bd3 Ndf6 12.0–0 Nc3 13.Bc3; 8.Bd3 0–0 9.Nf3 cb5 10.cb5 Nd7 11.Nbd2 Ndf6 12.0–0 Bd7 13.Ne5; 8.Nd2 0–0 9.Ngf3 f5 10.Rc1 Nd7 11.cd5 ed5 12.Bd3 c5 13.dc5; 8.Qc2 Nd7 9.Nf3 Ndf6 10.bc6 bc6 11.Ne5 Bb7 12.cd5 cd5 13.Bb5) 8...cb5 9.cb5 Nd7 10.Nf3 Ndf6 11.Bd3 Nc3 12.Bc3 Ne4 13.Qb3.

7.cd5 cd5 8.Be2 (8.d4 Nbd7 9.Nf3 0–0 10.Bd3 b6 11.Nc3 Bd6 12.0–0 Bb7 13.Re1; 8.Nf3 Nbd7 9.d4 0–0 10.Bd3 Bd6 11.0–0 b6 12.Nc3 Bb7 13.Rc1; 8.Nc3 0–0 9.Nf3 Nbd7 10.Rc1 Nc5 11.Be2 Bd7 12.Ne5 Bd6 13.d4) 8...0–0 9.Nf3 b6 10.Nc3 Bb7 11.Rc1 Nbd7 12.0–0 Rc8 13.d4.

7.cd5 ed5 8.Qc2 0–0 9.Nf3 g6 10.Nc3 Bf5 11.Bd3 Bd3 12.Qd3 Nbd7 13.0–0.

7.cd5 ed5 8.Nc3 Qc7 9.Nf3 0–0 10.Be2 Nbd7 11.0–0 Nb6 12.bc6 bc6 13.Qc2.

7.cd5 ed5 8.bc6 bc6 9.Nf3 0–0 10.Be2 Ba6 11.0–0 Nbd7 12.d4 Be2 13.Qe2 Bd6 14.Nc3 a4 15.Qc2 Qa5 16.Rfc1 Rfc8 17.Rab1 Rcb8 18.Qd2 (18.Nh4 Rb3=) 18...Rb6 19.Na2?? (better is 19.Qc2=) 19...Qd2–+ 20.Nd2 Rab8 21.Bc3 Ba3 22.Rb6 Rb6 23.Rb1 Rb1 24.Nb1 Bd6 25.Bb4 c5 26.dc5 Bc5 27.Bc5 Nc5 28.Nbc3 Nb3 29.Nb4 The isolani on d5 becomes a target 29...a3 30.Kf1? d4–+ 31.ed4 Nd4 32.Nb1 Nb5 33.Ke2 Ng4 34.h3 Ne5 35.Na2 f5 36.Kd2 Kf7 37.Nbc3 Nd4 38.Nb1 Ke6 39.Na3+= Kd5 40.Nc3 Kc5 41.Nc2 Nc2 42.Kc2 Kc4 43.Nd1 Nd3 44.Ne3+/– (44.Ne3 Kd4 45.Nf5 Kc4 46.Ng7 Nf2 47.Kd2+/–) 1–0. Fournier,Frederic (1650) – Guest947843, Partie amicale, 5m + 0s, 2007.

7.cd5 ed5 8.Nf3 0–0 9.Nc3 Qd6 10.Be2 Be6 11.0–0 Nbd7 12.Qc2 Rfc8 13.bc6.

7.cd5 Nd5 8.Nf3 (8.Nc3 0–0 9.Nf3 Nc3 10.Bc3 Qd5 11.Qb1 Rd8 12.Be2 cb5 13.0–0; 8.Qc2 0–0 9.Nf3 cb5 10.Bb5 Nc6 11.Nc3 Nc3 12.Bc3 Qd5 13.Bd3; 8.Bg7 Rg8 9.Bb2 cb5 10.Nc3 Nc3 11.Bc3 Nc6 12.Qb1 h6 13.Qb5; 8.Qg4 Bf6 9.Nc3 Nd7 10.Nf3 0–0 11.Be2 Nc3 12.Bc3 Bc3 13.dc3) 8...0–0 9.Nc3 Nd7 10.Qc2 f5 11.bc6 bc6 12.Rb1 N7f6 13.Ne5.

7.Nf3 cb5 8.cd5 (8.cb5 Nbd7 9.Nc3 0–0 10.Rc1 Nc5 11.Be2 Bd7 12.0–0 Bd6 13.d4) 8...ed5 9.Bb5 Nc6 10.0–0 0–0 11.Nc3 Be6 12.Rc1 Rc8 13.d4.

7.Nf3 dc4 8.Bc4 cb5 9.Bb5 Bd7 10.Be2 0–0 11.0–0 Nc6 12.Nc3 Qb8 13.d4 Rd8 14.Qc2 Be8 15.Rfd1 Na7 16.Ne5 Nc6 17.f4 h6 18.Bf3 Ne5 19.fe5 Nd5 20.Nd5 ed5 21.Qb3 Bc6 22.Rac1 Qc8 23.Rf1 Qd7 24.h3 Bg5 25.Bg4 Qe8 26.Rf3 a4 27.Qc2 Bd7 28.Bd7 Rd7 29.Rcf1 Qe6 30.e4 de4 31.Qe4 Rc8 32.h4 Bd8 33.Rg3 Bb6?? (33...b5 34.Rgf3+=) 34.Rf4?? (34.Rf6 Bd4 35.Bd4 Qd5 36.Qd5 Rd5+–) 34...Rcc7?? (34...Kh8 35.h5=) 35.Rfg4?? (better is 35.Rf6! Bd4 36.Bd4+–) 35...f5+= 36.ef6 Qe4 (36...Qf6 37.Kh2 Re7 38.Qg6 Qg6 39.Rg6=) 37.Re4 Rc2 38.Bc3 Rc1 39.Kf2 Rc3 40.Rc3 Bd4 41.Rd4 Rd4 42.Ke3 ˝–˝. Valenta,Vit jr (2210) – Szaraz,V (2030), Tatry Open, Tatranske Zruby SVK, 2008.

7.Nf3 Qc7 8.Nc3 Bd7 9.Be2 0–0 10.0–0 (10.cd5 Nd5 11.Nd5 ed5=) 10...cb5 (10...dc4 11.Qa4=) 11.cb5 Ne4 12.Ne4 de4 13.Nd4 (13.Ne5 f6 14.Rc1 Qb6 15.Nd7 Nd7+=) 13...Bd6 (13...e5 14.Nc2=) 14.g3 (14.Qb1 Bh2 15.Kh1 Bd6 16.Qe4 Qb6+=) 14...e5 15.Rc1 (15.Qa4 Qb6 (worse is 15...ed4 16.Qd4 f6 17.Rfc1+/–) 16.Nb3 Bf5=) 15...Qd8 (better is 15...Qb6!? 16.Nc2 Bb5–/+) 16.Nb3 Be6 17.Nc5 Bh3 (17...Bc5 18.Rc5 Nd7 19.Rc1=) 18.Re1 (18.Nb7 Qe7 19.Nd6 Bf1+=) 18...Qe7 (18...Bc5 19.Rc5 Nd7 20.Rc3=) 19.Ne4+= Ba3 20.Ba3 Qa3 21.Qc2 Bf5? (21...h6 22.d4=) 22.Bd3?? (better is 22.Nf6! gf6 23.Qf5+–) 22...Nd7 23.Ra1 Qe7 24.Nc3 (24.Nf6! Nf6 25.Bf5=) 24...Bd3+= 25.Qd3 Nc5 26.Qe2 b6 (26...Qd6 27.Red1+=) 27.Qf3 (better is 27.d4!? ed4 28.ed4 Qe2 29.Re2=) 27...e4–/+ 28.Qg4 f5 29.Qe2 Rad8 30.Qc4 (30.Ra2 Nd3 31.Rea1 Qe6–/+) 30...Kh8 31.Red1 (31.Qe2 Rd3–/+) 31...Qd6 (31...Nd3 32.Ra2–/+) 32.Na4 (32.f3 ef3 33.Qf1 Nd3–/+) 32...Na4 (32...Nd3 33.Qa2–/+) 33.Qa4 Qc5 (33...Qd3!?–/+) 34.Rac1+= Qe7 35.Rc6 Rb8 (35...Rf6 36.f3+=) 36.Rdc1 (36.d4!?+=) 36...Qd7 37.Qc2 Rfd8 38.Qc4 (38.Qb2 Rb7=) 38...h6 (38...Qd2 39.Qe6–/+) 39.Rc7 Qd5 40.Qc3 Rg8 (40...Rd7 41.Rd7 Qd7 42.Qb2+=) 41.Rc6 (41.Qb2!? Qd8 42.R1c6=) 41...Qb5?? (better is 41...Kh7 42.Qb2 Rge8+=) 42.Rh6 1–0. zabazaba (1665) – krino, gameknot.com, 2014.

7.Nf3 Nbd7 8.Nc3 (8.d4 0–0 9.Nc3 c5 10.Be2 cd4 11.Qd4 Nc5 12.Rd1 Nb3 13.Qd3; 8.Be2 0–0 9.Nc3 Nb6 10.cd5 cd5 11.Rc1 Qd6 12.Na4 Na4 13.Qa4; 8.cd5 cd5 9.Nc3 0–0 10.Rc1 Nc5 11.Be2 Qd6 12.0–0 Bd7 13.d4; 8.Qc2 0–0 9.Nc3 Nb6 10.cd5 cd5 11.Bd3 Bd7 12.0–0 Qc7 13.a4) 8...0–0 9.d4 c5 10.cd5 ed5 11.Be2 c4 12.0–0 Qc7 13.a4.

7.Nf3 0–0

8.Qc2 cb5 9.cd5 ed5 10.Bb5 Nc6 11.0–0 Bg4 12.Nc3 Bf3 13.gf3.

8.Nc3 Nbd7 9.d4 c5 10.dc5 Nc5 11.cd5 Nd5 12.Qc2 Nc3 13.Qc3 f6 (13...Bf6 14.Qc5 Bb2 15.Rd1=) 14.Bc4= Qc7 15.0–0 Kh8 16.Qc2 e5 17.Rac1 b6 18.Rfd1 Bb7 19.Nd2 Rfd8 20.a4 Rac8 21.Be2 Qd7 22.h3 Nd3 23.Qd3 Qd3 24.Bd3 Rd3 25.Nc4 Rd1 26.Rd1 Rc4 27.Ba3 Ra4 28.Be7 Kg8 29.Bd8 Rb4 30.Bb6 Be4 31.Ba5 Rb5 32.Be1 ˝–˝. deepthough (2170) – vishm (2205), gameknot.com, 2015.

8.Nc3 Nbd7 9.d4 Qc7 10.cd5 ed5 11.Rc1 Re8 12.Bd3 c5 13.dc5.

8.d4 cb5 9.cb5 Nbd7 10.Bd3 b6 11.Nc3 Bb7 12.0–0 Re8 13.Rc1.

8.d4 Nbd7 9.Nbd2 Qc7 10.Rc1 c5 11.Bd3 b6 12.0–0 Bb7 13.Qe2 Rfe8 14.dc5 bc5 (14...Nc5 15.cd5 Bd5 16.e4=) 15.Rfe1+= e5 (better is 15...Rad8!?+=) 16.cd5+/– Bd5 (16...Nd5 17.Nc4 f6 18.Qc2+–) 17.e4+– Bb7 (17...Be6 18.Nc4+–) 18.Nc4 Nb6 (18...Bd8+–) 19.Be5 Qd8 20.Rcd1 Nc4 21.Bc4 Qb6 (21...Qc8+–) 22.Ng5 Rf8 23.Qa2 Be4 (23...Nd5 24.h4 Nf6 25.Nf7 Rf7 26.Bf7 Kh8+–) 24.Bf7 Kh8 25.Ne4 Ne4 26.Re4 Bf6 (26...Rad8 27.Rd8 Qd8 28.g3+–) 27.Bf6 Qf6 28.Bd5 Rad8 (28...Rae8 29.Re8 Re8 30.Qc4+–) 29.Qc2 Qb6 (29...Rfe8 30.Re8 Re8 31.Qc5+–) 30.Re6 Qb5 (30...Rd6 31.Rd6 Qd6+–) 31.Rh6! Rd5 (31...gh6 32.Qc3 Mate attack) 32.Qh7 1–0. pierred – anony, internet, 2014. (=1.b4 a5 2.b5 c6 3.c4 d5 4.e3 Nf6 5.Bb2 e6 6.a3 Be7)

8.cd5 ed5 9.Nc3 cb5 10.Bb5 Nc6 11.0–0 h6 12.Rc1 Bf5 13.Qb3.

8.Be2 cb5 9.cb5 b6 10.Nc3 Bb7 11.0–0 Nbd7 12.Rc1 Bd6 13.d4.

8.Be2 Nbd7 9.cd5 cd5 10.Nc3 Nb6 11.Na4 Nfd7 12.Nb6 Nb6 13.a4 f6 14.0–0 ˝–˝. Cruz,Filemon (2405) – Cori Quispe,Kevin (2085), Arequipa PER, 1st Open, 2013.

6.Nf3 Bd6

7.c4 0–0 8.Nc3 Nbd7 9.d4 dc4 10.Bc4 Nb6 11.Bd3 Bd7 (11...Nbd5 12.bc6 bc6 13.e4 Rb8 14.ed5 Rb2 15.dc6 Ng4 16.Ne4 f5 17.Ned2 Bf4+=) 12.0–0 (12.Ne5 Rc8 13.Qf3 cb5 14.Nd7 Qd7 15.Bb5 Qe7 16.e4 e5 17.d5 Nc4=; 12.Rc1 Qe7 13.Qb3 a4 14.Qa2 cb5 15.Nb5 Bb5 16.Bb5 Bb4 17.Ke2 Bd6=; 12.bc6 Bc6 13.e4 Nh5 14.Nb5 Nf4 15.Nd6 Qd6 16.0–0 Na4 17.Bc1 Nd3–/+) 12...Rc8 (12...Nbd5 13.Nd5 Nd5 14.Qb1 f5 15.bc6 Bc6 16.Rc1 Rc8 17.Be2 b5=) 13.e4 Bb8 (13...Bf4 14.Qb1 cb5 15.Ne2 Bc7 16.e5 Nfd5 17.Bh7 Kh8 18.Bd3=) 14.a4 (14.Qc2 cb5 15.Qb1 h6 16.Bb5 Bb5 17.Nb5 Qd7=) 14...Nh5 15.Ne2 (15.Ba3 cb5 16.Nb5 Re8 17.Bc5 Nf4=) 15...Nf4 16.Nf4 (16.Ba3 Re8 17.Nf4 Bf4+=) 16...Bf4 17.Ba3 Re8 18.Bc5 cb5 19.ab5 Na8 20.g3 Bb8 21.e5 b6 22.Bd6 (22.Ba3 Nc7 23.Qe2 Nd5+=) 22...Nc7 (better is 22...Bd6!? 23.ed6 Rf8=) 23.Rc1 h6 24.Nd2 f5 25.ef6 Qf6 26.Ne4 (26.Be5 Qd8+/–) 26...Qf7 (26...Qd4 27.Rc4 Qd5 28.Nf6 gf6 29.Rg4 Kh8+–) 27.Qe2+= Red8 28.Rfe1 Ne8 (28...Nb5 29.Bb5 Rc1 30.Rc1 Bb5 31.Qb5 Bd6 32.Qb6+/–) 29.Be5 Rc1 30.Rc1 Qe7 31.Qe3 Qf8 32.g4 Qe7 33.g5 h5 34.g6 Be5 35.de5 1–0. Taulien,Hans_Juergen (2350) – Mrkvicka,Josef (2460), remoteschach.de, 2004.

7.c4 0–0 8.Nc3 Nbd7 9.d4 dc4 10.Bc4 c5 11.Na4 b6 12.Ne5 Bb7 13.Nd7 Nd7 14.dc5 Nc5 15.Qg4 g6 16.Nc5 Bc5 17.h4 Bd5 18.h5 Bc4 19.Qc4 Qd5 20.Qf4 Qf5 21.Qh6 f6 22.Rh3 Bd6 23.hg6 Qg6 24.Qh4 Rad8 25.Rf3 f5 26.Rd1 Qg4 27.Qg4 fg4 28.Rf6 Bc5 29.Rf8 Rf8 30.Rd7 Rf7 31.Rf7 Kf7 32.a4 h5 33.g3 Kg6 34.e4 Bd6 35.Bd4 Bc7 36.Kd2 ˝–˝. Taulien,Hans_Jrgen (2380) – Andersen,Jens (2155), corr WS/M/346 ICCF, 2011.

7.c4 0–0 8.Nc3 Nbd7 9.d4 dc4 10.Bc4 e5 11.Qd3 (11.de5 Ne5 12.Ne5 Be5 13.Qd8 Rd8=) 11...Qe7 Black prepares the advance e4 (11...ed4 12.Qd4 (worse is 12.Nd4 Ne5 13.Qf1 c5+=) 12...Qe7 13.Qh4=) 12.Qc2 (12.bc6 bc6 13.Ne4 Ne4 14.Qe4 Rb8=) 12...e4 (12...ed4 13.Nd4 Ne5 14.Be2=) 13.Nd2 (13.Ng5 Nb6 14.Be2 Bf5=) 13...Nb6 14.bc6 bc6 15.Be2 Re8 16.h3 h6 (16...Ba6 17.Ba6 Ra6 18.g4=) 17.0–0 Bf5 (17...Ba6 18.Ba6 Ra6 19.Rfc1=) 18.Na4 Na4 19.Qa4 Nd5 (19...Bd7 20.Qc2=) 20.Qc6 (20.Nc4 Rec8+=) 20...Qe6= 21.Rfc1 Rec8 (21...Rab8 22.Qc2=) 22.Qa4+= Bh3 (22...Qg6!? 23.Kh1 Rc1 24.Rc1 Be6+/–) 23.gh3+/– ˝–˝. Taulien,Hans_Juergen (2350) – Mehlhorn,Uwe (2440), RSX10D – XMAS–1, 2003.

7.c4 0–0 8.d4 b6 =.

7.d4 cb5 8.Bb5 Bd7 9.Nc3= 0–0 10.Bd3 Qc7 11.0–0 Rc8 12.Qe2 Bc6 =.

7.d4 Nbd7 8.c4= dc4 9.Bc4 (9.bc6 bc6 10.Nbd2 Nb6= 11.Nc4 Nc4 12.Bc4 Ba6=) 9...Nb6 10.Bd3 cb5 11.Bb5 Bd7 12.Qe2 (12.Bd3 Na4=) 12...Nfd5 (12...0–0 13.0–0=) 13.Nc3 (13.Bd3 Na4=) 13...Nc3 (13...0–0 14.0–0=) 14.Bc3 Na4 15.Bd2 Bb5 16.Qb5 Qd7 17.Qb3 Ra6 (17...0–0 18.e4=) 18.0–0 0–0 19.Rab1 (19.Rfb1 Rb6 20.Qd3 Rb1 21.Rb1 b6+=) 19...Rb6 20.Qd3 Rb1 (20...Nb2!? 21.Qe2 Ra8=) 21.Rb1+= b6 22.e4 (22.Rb5 Rc8+=) 22...h6 (22...Rc8 23.Rb3=) 23.e5 (23.Rc1 Rd8+=) 23...Be7= 24.Qe4 (24.Rb5 Rc8=) 24...Rc8 (24...Ba3 25.Qc2 Rc8 26.Qb3=) 25.Qg4+= Kh8 (25...Ba3 26.Bh6 Bf8 27.Bd2=) 26.d5 Nc3 27.Bc3 (27.de6 Ne2 28.Kh1 fe6+=) 27...Rc3 28.d6 Bd8 29.Ra1 Qc6 30.Qf4 Kg8 31.h3 b5 32.Nd4 Qd5 33.Rb1?? Rc5?? 34.Nf3 f6 35.Re1+= Rc4 36.Qe3+/– Rc6 37.Qa7 Bb6 38.Qb8+/– Kh7 39.ef6 gf6 40.Qe8 e5+/– 41.Qe7 Kg8 42.Qf6 Rd6 43.Qe5 Qe5= 44.Re5 Rd1 45.Re1 Rd3 46.Rb1 Bc7 47.Kf1+= Ra3 48.Rb5 Rc3 49.Nd4 a4 50.Rb4 a3= 51.Ra4 Bb6 52.Ke2 Rc1 53.Ra8 Kf7 54.Nf5 Rc2 55.Kd3 Rf2 56.Nh6 Kg7 57.Ra3 Kh6 58.Ra6 Rf6 59.Kc4+= ˝–˝. Raeva,E (2255) – Chilingirova,P (2210), 57th ch–BUL w, Plovdiv BUL, 2008.

7.Be5 0–0 8.d4 Ne4 9.Bd6 Nd6 (9...Qd6 10.c4=) 10.Nc3 Qc7 11.Qd2 Bd7 12.bc6 (12.Rb1 cb5 13.Nb5 Bb5 14.Bb5 Nc6=) 12...Qc6 13.Nd1 (13.Ne5 Qc7=) 13...Rc8 14.Bd3 Qc7 15.Qe2 Nc6 16.0–0 b5 17.c3 (17.Bb5? Nb5 18.Qb5 Nd4–+) 17...Ne7 (17...Rab8 18.Nb2=) 18.Re1 f6 (18...Rab8 19.Rb1=) 19.Nd2 f5 20.Nb3 (20.Rb1 Rab8=) 20...Nb7 (20...Ne4 21.Bb5 Bb5 22.Qb5=) 21.Bb5 Bb5 22.Qb5 a4 23.Nd2 Nd6 24.Qd3 (24.Qe2 Rab8=) 24...Ng6 (24...Ne4 25.Ne4 fe4 26.Qc2=) 25.Rb1+= Ne4 Increases the pressure on the backward pawn 26.Ne4 fe4 27.Qe2 Qe7 (27...Qd6 28.Rb4+=) 28.Rb4 Qg5 (28...Qg5 29.Kh1 Ne7+=). Rushton,Darren – Rosner,Dirk (1700), TT–01 TSC, 2002.

7.Be5 0–0= 8.d4 Be5 9.Ne5 Qc7 10.Nd2 Nbd7 11.Nd7 Bd7 12.bc6 bc6 =.

7.Be5 Be5 8.Ne5 Nbd7 9.Nd7 Bd7 10.bc6 bc6 =.

5.b5 Bd6

6.c4 0–0 7.d4 b6 8.Nf3 Nbd7 9.cd5 ed5 10.Nc3 Qe7 11.Bd3 Bb7 12.0–0 Rae8 13.Re1 Ne4 14.Qc2 f5 15.h3 Qf6 16.Bf1 Qh6 17.Rac1 Ndf6 18.Ne2 Bc8?? 19.Ne5+= Be6 20.Nf4 g5 21.Ne6 Re6 22.f3 Ng3 23.Qf2 f4 24.ef4 gf4 25.Ng4 Ng4= 26.fg4 Rfe8 27.Re6 Re6 28.Re1 Kf7 29.Re6+= Qe6 30.Qe1?? Qe1 (30...Qe1 31.Kh2 Qf1 32.g5 Qh1) 0–1. Fournier,Frederic – osheenlov, Partie amicale, 2m + 0s, 2008.

6.c4 0–0 7.Nf3 Nbd7 8.Be2 dc4 9.Bc4 e5 10.0–0 e4 11.Nd4 Bh2 (11...Ne5!? 12.Be2 Qe7=) 12.Kh2= Ne5 13.Be2 Nfg4 14.Bg4 Ng4 15.Kg3 h5 16.Rh1 h4! 17.Rh4 Qd6 18.f4 ef3! 19.Kf3 Qf6 20.Ke2 Qf2 21.Kd3 Qh4 22.Kc2 Qh7 23.Kc1 (23.Kc3 Bf5–+) 23...c5 24.Nf3?? (24.bc6 bc6 25.Qf1–+) 24...Nf2 25.Qf1 Nd3 (25...Nd3 26.Kd1 Nb2 27.Kc1 Nd3 28.Kd1 Be6–+) 0–1. zabazaba (1625) – kindvall (2010), gameknot.com, 2013.

6.c4 c5 7.Nf3 Nbd7 8.d4 Nb6 9.Qc2 dc4 10.Bc4 Nc4 11.Qc4 b6 12.a4 Bb7 13.Nbd2 0–0 14.0–0 Re8 15.Qe2 Rc8 16.Rac1 Nd7 17.Nc4 Bf8 18.Rfd1 Qc7 19.Nfe5 Ne5 20.Ne5 Bd6 21.Nc4 Be7 22.dc5 Bc5 23.Nd6 Qe7? (better is 23...Qd6!? 24.Rd6 Bd6 25.Rc8 Rc8+/–) 24.Ne8 Re8 25.Qg4 f5 26.Qf4 (26.Qg7!? Qg7 27.Bg7 Kg7 28.Rd7 Kg6 29.Rb7 Rd8+–) 26...Bd5 27.Bd4 e5?? (better is 27...Bd6 28.Be5 Bc5+–) 28.Bc5 bc5 (28...ef4?? 29.Be7 Bb3 30.Rd8+–) 29.Qf5 Rf8 30.Qh3 (30.Qd3 Bf7+–) 30...Qf7 (30...Be6 31.Qg3 Bb3 32.Rd2 Ba4 33.e4+–) 31.Rf1 (better is 31.Qh4 c4 32.e4+–) 31...Bc4 32.Rfe1 Qf2 33.Kh1 Bb3 34.Qg3 (34.e4 c4+–) 34...Qf6? (34...Qg3!? 35.hg3 c4+/–) 35.h3 (35.Rc5?? Qf1 36.Rf1 Rf1) 35...c4 36.e4 (36.Rf1 Qd6 37.Rf8 Kf8 38.Qf3 Ke8 39.Qa8 Qd8+–) 36...Qd6 37.Rf1 Re8 38.Qf3 Qe7 39.Ra1 Rd8 40.Qc3 Qc7 41.Rf5 Re8 42.Rb1 g6 43.Rf3 Qb6? (43...Ba4 44.Rf6 Kh8+–) 44.Rb3 cb3 45.Qb3 Qe6 46.Qe6 Re6 47.Rc3 Kf7 48.Rc7 Ke8 (48...Kf6 49.Ra7 Kg5 50.g3+– (50.Ra5?! Kf4+–)) 49.Rh7 Kd8 50.Ra7 Kc8 51.Ra5 Rd6 52.Ra6 Rd4 53.Rg6 Ra4 (53...Re4 54.a5 Re1 55.Kh2+–) 54.Rg4 Rb4 55.h4 Kd7 56.h5 Rb5 57.Kh2 Ke7 58.Kh3 Rb8 59.Kh4 Kf6 (59...Kf7+–) 60.Rg6 Kf7 61.Kg5 Rb2 62.Kf5 Rb8 63.g4 Re8 (63...Rb3+–) 64.h6 Rh8 65.Rf6 (65.Rg7 Ke8 66.g5 Kd8 67.h7 Re8 68.Rg8 Kd7 69.Re8 Ke8 70.h8Q Kd7 71.g6 Kc6 72.Qc8 Kb5 73.g7 Kb4 74.g8Q Kb5 75.Qb3 Ka5 76.Qa8) 65...Ke7 66.Ke5 Rg8 67.h7 Rh8 68.Rh6 Kf7 69.g5 Kg7 70.Ke6 Re8 (70...Rh7 71.Rh7 Kg6 72.e5 Kg5 73.Kd6 Kg4 74.e6 Kf3 75.e7 Kf4 76.e8Q Kg5 77.Rg7 Kf4 78.Qe2 Kf5 79.Qe5) 71.Kd7 Rh8 (71...Rf8 72.h8Q! Rh8 73.Rh8 Kg6 74.Rf8 Kh5 75.e5 Kg5 76.e6 Kh6 77.Rg8 Kh7 78.Rg2 Kh8 79.e7 Kh7 80.e8Q Kh6 81.Qg6) 72.e5 Kf8 (72...Rh7 73.Rh7 Kg6 74.Rh8 Kf5 75.e6 Kg6 76.e7 Kg5 77.e8Q Kf4 78.Rf8 Kg5 79.Qe5 Kg4 80.Qg7 Kh4 81.Rh8) 73.e6 Rh7 (73...Kg7 74.e7 Rb8 75.e8R Rb7 76.Kc6 Rb6 77.Kb6 Kf7 78.h8R Kg7 79.Re7) 74.Rh7 Kg8 75.e7 (75.g6 Kf8 76.e7 Kg8 77.e8Q) 75...Kh7 76.e8Q Kg7 77.Qe6 (77.Ke6 Kh7 78.Qf8 Kg6 79.Qh6) 77...Kh7 78.g6 (78.Qf7 Kh8 79.Qe7 Kg8 80.g6 Kh8 81.Qh7) 78...Kh8 (78...Kh6 79.Qf6 Kh5 80.g7 Kg4 81.g8Q Kh5 82.Qgg5) 79.Qe7 Kg8 80.Ke6 Kh8 81.Kf6 (81.Qh7) 81...Kg8 82.Qg7 1–0. Lin,Chenxi – Li,Yilin (1850), ch–Francophonie, 2015.

6.d4 0–0 7.Nf3 Nbd7 8.c4 c5 9.dc5 Nc5 10.Nc3 dc4 11.Bc4 b6 12.0–0 Bb7 13.Nd4 Qc7 14.f4 Rfd8 15.Rc1 Rac8 16.Qe2 Qe7 17.Rfd1 Nfe4 18.Qg4 g6 19.Nde2 Nc3 20.Nc3 (20.Rc3?? Na4 21.Be6 Nc3 (21...Qe6?! 22.Qe6 fe6 23.Rc8 Bc8 24.Be5–+; worse is 21...fe6 22.Rc8 Bc8 23.Be5–+) 22.Nc3 fe6–+; worse is 20.Bc3 Ne4 21.Bd3 Ba3–+) 20...Ne4 (20...Nd7 21.Nb1=) 21.Ne4= Be4 22.Rc3 (22.Qg5 Qg5 23.fg5 Bc5+=) 22...Bc5 23.Bf1 Rd6 24.a4 Rcd8 25.Rd6 Qd6 0–1. Urgelles Paumier,A – Guerra Acosta,P, 3906 Boris Castillo IM, 2005.

6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 a5 5.b5 Bd6 6.e3).

6.f4 Nbd7 7.Nf3 0–0 8.c4 Re8 9.Be2 e5 10.fe5 Ne5 11.Ne5 Be5 12.Be5 Re5 13.0–0 d4 14.Bf3 Rb8 15.Re1 Be6 16.d3 (16.Qb3!?+=) 16...Re3–/+ (16...de3?! 17.d4 Rg5 18.d5+=) 17.Re3 de3 18.Qe2? (better is 18.Nc3–+) 18...Qd4 19.Ra2 Bf5 20.Be4 (20.Qe1–+) 20...Ne4 21.de4 Be4 22.a4 Bb1 (22...Bb1 23.Ra3 Re8–+) 0–1. purplegadge (1705) – daan1957 (1760), gameknot.com, 2012.

6.c4 Nbd7

7.d4 c5 8.Nf3 0–0 9.Be2 cd4 10.Qd4 e5 11.Qh4 Be7 12.cd5=+ Nd5 13.Qg3 f6 14.0–0 N7b6 15.Rd1 Be6 16.Nc3 Nc3 17.Bc3 Nd7 18.e4 Qe8 19.Nh4 Nc5 20.Nf5 g6 21.Bb2 Ne4=+ 22.Ne7 Qe7 23.Qe3 Nc5 24.Rac1 Nb3 25.Rc3 Nd4 26.Bf1 Rad8 27.Rcd3 Nf5 28.Qa7 Rd3 29.Bd3 Bb3 30.Rc1 a4 31.Bf5 gf5 32.f4 ef4 33.Qf2 Qe3 34.Re1 Qf2 35.Kf2 Kf7 36.Bc1 Bc4 37.b6 Rd8 38.Bf4 Rd3 39.Rc1 Ba6 40.Ra1 Rb3 41.Be3 Bd3 0–1. Hoch,Hubertus (2105) – Ballow,John, WS/M/165 ICCF, 2008.

7.Nf3 0–0

8.Qc2 c5 9.bc6 bc6 10.Nc3 Ba6 11.cd5 Bf1 (worse is 11...Nd5 12.Ba6 Ra6 13.Ne4=) 12.Kf1 cd5 (worse is 12...Nd5 13.Ne4 Be7 14.Nd4=) 13.Ng5 Qb6 14.g3 Rab8 15.Na4 Qb5 16.Kg2 Rfc8 17.Qd1 d4! 18.h4 (18.Bd4 Qg5 Discovered attack; 18.ed4 Qg5 Discovered attack) 18...Rc4 19.Bd4 Ra4 20.Rb1 Qd5 21.Nf3 Rb1 22.Qb1 Ne4 23.Qc2 Ra3 24.Qc8 (24.d3 Nec5 25.e4 Qh5–+) 24...Nf8 25.Rd1 Ra2 26.h5 (26.Qc1–+) 26…Ng5 (26...Ng5 27.e4 Qe4–+) 0–1. combijack (1815) – estevaocaselutz (2070), gameknot.com, 2012.

8.Qc2 Re8 9.Be2 dc4 10.0–0 (10.Bc4 Nb6 11.Bd3 e5=) 10...e5 11.Bc4 Nb6 12.Ba2 e4 13.Ng5 Bh2 14.Kh1 (14.Kh2 Ng4 15.Kg1 Qg5 16.Qc7 Nd5 17.Bd5 Qd5+=) 14...Nfd5 15.f4 Bg3 16.Bd4? (16.Qc5 Bg4–/+) 16...Bg4 (better is 16...Qd6 17.f5 Qh6 18.Nh3 Qh5–+) 17.Nc3?? (17.Qc5 h6 18.Nc3 hg5 19.Nd5 gf4 20.Nf4 Qh4 21.Nh3 Bh3 22.Bf7 Kh7 23.Qh5 Qh5 24.Bh5 Be6–+) 17...Qd6–/+ 18.d3?? (better is 18.Nh3 Qh6 19.Kg1 (19.Nd5 Bh3 20.Kg1 Be6 21.Nf6 gf6 22.Rf2 Qh2 23.Kf1 Qh1 24.Ke2 Bg4 25.Rf3 Bf3 26.gf3 Qf3; 19.Bd5 Bh3 20.Bf7 Kf7 21.Kg1 Bg2 22.Qb3 Re6 23.Qe6 Ke6 24.f5 Kf7 25.Kg2 Qh2) 19...Bh3 20.gh3 Qh3 21.d3 Ne3 22.Be3 ed3 23.Qg2 Qg2 24.Kg2 Re3 25.Rf3 Rf3 26.Kf3–+) 18...Qh6–+ 19.Nh3 ed3 20.Qd2 Re3! 21.Be3 (21.Bg7 Kg7 22.Kg1 Bh3 23.gh3 Nf4 24.Qe3 Nh3 25.Kg2 Qe3 26.Rf7 Kg6–+) 21...Bh3 22.gh3 Qh3 23.Kg1 Nc3 (23...Nc3 24.Rae1 Re8–+) 0–1. combijack (1845) – guerrer (2115), gameknot.com, 2014.

8.d4 c5 9.bc6 bc6 10.c5 Bc7 11.Bd3 e5 12.de5 Ne4 13.0–0 (13.Qc2 Ndc5 14.Be4 de4 15.Qc5 ef3 16.gf3–/+) 13...Ndc5–/+ 14.Nc3? (better is 14.Be2 Rb8 15.Ra2–/+) 14...Rb8–+ 15.Ne4 (15.Rb1 Rb2! 16.Rb2 Nc3 17.Qc2 Nd3 18.Qd3–+) 15…de4 (15...de4 16.Be4 Qd1 (16...Rb2?! 17.Qc1 Ne4 18.Qb2–+) 17.Rad1 Ne4–+; 15...Ne4?! 16.Rb1 c5 17.Qc2=) 0–1. cheester (1880) – westaust (2190), gameknot.com, 2012.

8.cd5 ed5 9.Be2 c5 10.bc6 bc6 11.Qc2 Rb8 12.0–0 Qb6 13.Ra2 Ba6 14.d3 c5 15.Nbd2 Rfe8 16.Re1 Qc7 17.h3 Qc6 18.Ba1 Rbc8 19.Rb1 d4 20.e4 Ne5 21.Ne5 Be5 22.Rab2 Bc7 23.Nf3 Qd6 24.e5 Re5 25.Ne5 Qe5 26.g3 h5 27.h4 Qf5 28.Bf1 Ng4 29.Qe2 (29.Re1 Ne5 30.Re4 Nf3 31.Kh1 c4 32.dc4 Be5=) 29...Ne5+= Increasing the pressure on the isolated pawn on d3 30.Qe4 Qd7 31.Rc2 f5 32.Qg2 Qd6 (worse is 32...Bd3 33.Bd3 Nd3 34.Rd1+=) 33.Rbc1 Bd3 (33...Nd3 34.Bd3 Bd3 35.Rc5+–) 34.f4 (34.Rc5 Be4 35.f4 Nf3 (35...Bg2?! 36.fe5 Qg6 37.Bg2–+) 36.Kf2 d3 37.Qf3 Bf3–+) 34...Bc2 35.fe5 Qe5 36.Rc2 Rb8 37.Bb2 (37.Kh2 Kh7 38.Qf3 g6+=) 37...Rb6 (better is 37...Qg3!? 38.Bc1 Qg2 39.Bg2 d3–/+) 38.Bc1= d3 (worse is 38...Qg3 39.Rc5 g6 40.Qg3 Bg3 41.Bg5+/–) 39.Rc4 Rb3 (worse is 39...Qg3 40.Qg3 Bg3 41.Bd3+/–) 40.Qf3 Qe1 41.Be3 Ra3 42.Rc5 Qg3 43.Qg3 Bg3 44.Bc1 Ra1 45.Kg2 Bh4 46.Bd3 Be7 47.Rc6 Kf8 48.Bf5 g5 49.Bg6 Ra2 50.Kg3 h4+= 51.Kg4 ˝–˝. Groebner,Karl Heinz (2060) – Kuntermann,Herbert (2320), BdF, 2007.

8.Be2 dc4=+ 9.Bc4 Qe7 10.0–0 Nb6 11.Be2 e5 12.d3 Rd8 13.Nbd2 Bd7 14.d4 e4 15.Ne5 Bf5 16.Re1 h6 17.Qc2 Nfd7 18.Nec4 Nc4 19.Nc4 Nb6 20.Nd6 cd6 21.Qd2 Nd5 22.a4 Qg5 23.Ba3 Nb6 24.Rec1 Be6 25.Qc2+= Qf5 26.Qd1 Qg5= 27.Bf1 Qf5 28.g3 Rd7 29.Be2 Rdd8 30.Rab1 Rac8 31.Rc8 Rc8 32.Bd6 Nd5 33.Ra1 Nc3 34.Qe1 Ne2 35.Qe2 b6 36.Bf4 Bb3 37.Qb2 Qe6 38.h3 Rc2 39.Qa3 h5 40.Rb1 Bc4=+ 41.Rc1 Ra2 42.Qd6 Ra4 43.Qd8 Kh7=+ 44.g4 Rb4 45.Qg5 Rb5 46.Be5= f6 ˝–˝. Buczinski,Henryk (2260) – Solf,Frank (2255), Alpert Memorial Cup, Preliminary group, 2009.

8.Be2 c5 9.d3 dc4 10.dc4 Qc7 11.Qc2 b6 12.Nc3 Bb7 13.Rd1 Rad8 14.0–0 (14.e4 Ne5+=) 14...Bf3+= 15.gf3 Bh2 16.Kh1 Bd6 17.f4 Rfe8 18.Rg1 g6 19.Bf3 Bf8 20.Bc6 Bg7 21.Rd2 Rf8 22.Rgd1 Nb8 23.Bf3 h5 24.Kg2 Rd7 25.Rd7 Nbd7 26.Ne4 Ne4 27.Bg7 ˝–˝. aspasio (2875) – bigart (2750), net–chess.com, 2014.

5.b5 Bd7

6.Nf3 c6 7.bc6 Bc6 8.c4 Be7 9.cd5 Bd5 10.Nc3 0–0 11.Be2 Nbd7 12.0–0 Bc6 13.d4 Nd5 14.Nd5 Bd5 15.Rc1 Nf6 16.Ne5 Qb6 17.Qc2 Be4 18.Qd2 Rfc8 19.f3 Bd5 20.Rc8 Rc8 21.Rc1 Rc1 22.Qc1 Bc6 23.Nc6 Qc6 24.Qc6 bc6 25.e4 c5 26.dc5 Bc5 27.Kf1 Kf8 28.Bb5 Ke7 29.a4 Bb4 30.Ke2 Nd7 31.Bd7 Kd7 32.Bg7 Kd6 33.Bd4 Kc6 34.Kd3 Be1 35.Kc4 h5 36.g4 hg4 37.fg4 Bh4 38.Bc3 Bg5? 39.Ba5 Bf4 40.h3 Kb7 41.Kb5 Bd6 42.Bb4 Bf4 43.a5 Bg5 44.a6 Ka8 45.Bc5 f6 46.Kb6 Bh4 47.a7 e5 48.Kc6 Bg5 49.Kd7 Bh4 50.Ke6 Bg5 51.Be7 Ka7 52.Bf6 Bf6 53.Kf6 (53.Kf6 Kb6 54.Ke5+–) 1–0. Fournier,Frederic (1715) – andrev (1745), Active, 2007.

6.Nf3 Bd6 7.Be2 0–0 8.h3 e5 9.0–0 e4 10.Nd4 c5 11.bc6 Bc6 12.c4 1–0. Fournier,Frederic (2010) – pecadoll (2015), Active (1/0), 2005.

6.Nf3 Be7 7.d4 c5 8.Be2 c4 9.a4 b6 10.0–0 Ne4 11.Nfd2 Nd6 12.e4 0–0 (12...de4 13.Bc4 Bc8 14.Qe2+=) 13.Nc3 Bc8 (13...de4!? 14.Bc4 f5+=) 14.ed5+/– Bb7 (14...Qc7!?+/–) 15.de6+– fe6 16.Bf3 Bf3 17.Nf3 (17.gf3?! Bg5=) 17...Nf5 (17...Bf6 18.Qe2 Re8 19.Rad1+–) 18.Qe2 Qd6 (18...Qc8 19.d5 ed5 20.Nd5+–) 19.Rfd1 Nh4? (19...Ra7+–) 20.Nh4 Bh4 21.Ba3 Bf2 22.Kh1 Qf4 23.Bf8 Bd4 (23...Nd7 24.Ba3 Be3+–) 24.Ba3 e5 (24...h6 25.Qe6 Kh7+–) 25.Qc4 Kh8 1–0. usingprogram (2000) – sanojuus, kurnik, 2013.

6.Nf3 Be7 7.Be2 0–0 8.0–0 c6 9.Nc3 (9.a4 cb5 10.ab5 Qe8=) 9...cb5 (9...Ne4 10.Ne5=) 10.Nb5 Bb5 11.Bb5 Nc6 12.Rc1 Na7 13.Bd3 h6 (13...b5 14.Qe2=) 14.Ne5 (14.Rb1 Nc6+=) 14...Rc8 (14...b5 15.f4=) 15.f4 b5 16.Qe2 Ne4 17.Be4 (17.f5 Qd6 18.fe6 Qe6+=) 17...de4 18.c4 (18.d3 ed3 19.cd3 Qd6+=) 18...b4 (18...bc4 19.Nc4 g6 20.Qd1=) 19.ab4 ab4 (19...Bb4 20.Rfd1=) 20.Rfd1 Qc7 21.d4 ed3 22.Nd3 Rfd8 23.Qg4 g6 24.Qh3 Kh7 25.g4 Nc6 26.c5 (26.g5 Bf8=) 26...Rd7 27.g5 h5 28.Qg2 (28.Qf3 Rcd8 29.Qe2 Qa5=+) 28...Rcd8 29.Qc2 Qb7 30.Kf2 Qb5 31.Ke2 Qb8 (31...Bf8 32.Qc4 Qb7 33.Kf2=) 32.Qa4 (32.Qc4 Bg5 33.Qe4 Rd5=+) 32...Qb7=+ 33.Qc2 Qb8 (33...Kg8 34.Ke1=+) ˝–˝. Rosner,Dirk – Puechert,Wolfram, DESC, 2000.

5.b5 Nbd7

6.a4 b6 7.Be2 Bb4 8.f4 Bb7 9.Nf3 0–0 10.0–0 Re8 11.Nd4 Bd6 (11...Qe7 12.Nc6 Qf8 13.c3=) 12.c4 Nc5 13.Nc6 Bc6 14.bc6 Be7 15.Be5 Nfe4 16.cd5 ed5 17.d3 Nf6 (17...Nd6!? 18.Bg4 Bf6=) 18.Nc3+/– Na6 19.Bf3 Nb4 20.Qb3 Nd3 (better is 20...Bc5!? 21.d4 Bd6+/–) 21.Nd5+– Nc5 22.Qc4 Bd6 23.Bf6 gf6 24.Bg4 Re4 (24...Kh8 25.Bf5+–) 25.Qc2 h6 26.Rf3 Re8 (26...Kh8 27.Rh3 Kg7 28.Bf5+–) 27.Qf5 Kg7 (27...Ne4 28.Rd1 Qc8 29.Qh5+–) 28.Rd1 Re6 29.Qh5 Re7 (29...f5 30.Bf5 Rg6+–) 30.Bf5 Qh8 (30...Re3 31.Re3 Qh8 32.Nb6 Qf8 33.Rg3 Kh8 34.Rd6 cd6+–) 31.Rg3 Kf8 32.Bh7!! (32.Bh7 Nd7 33.cd7 Rd7 34.Qh6 Ke8 35.Rg8 Qg8 36.Bg8+–) 1–0. marekt (2140) – hahaha (2000), gameknot.com, 2014.

6.a4 Be7 7.Nf3= 0–0 8.Be2 Nb6 9.0–0 Ne4 10.d4 f6 11.Nbd2+= Nd6 12.Qc1 Kh8 13.c4 Ndc4 14.Nc4 dc4 15.Bc4 Nc4 16.Qc4 Bd7 17.Rad1 (17.Ba3!? Ba3 18.Ra3+=) 17...c6= 18.bc6 Bc6 19.Qe6 Ba4 20.Ra1 Bd7 21.Qb3 (21.Qe4 b5+=) 21...b5–/+ 22.e4 a4 23.Qe3 b4 24.d5 Bb5 (24...Bd6 25.Rfc1–/+) 25.Rfc1+= Bd6 26.Bd4 Qd7 27.Bc5 Rfc8 28.Bd6 Qd6 29.e5 (29.Rc8 Rc8 30.Nd4 Bd7+=) 29...Rc1 30.Rc1 fe5 31.Rd1 b3 32.Ng5 Kg8 33.Ne4 Qb4–+ 34.Ng5 h6 35.Ne6 b2?? 36.Qe5+/– Qg4 37.f3 Qg6 38.Qb2 Bc4 39.Qb7 Re8 40.Qd7 Bd5+= 41.Ng7 Qb6 42.Kh1+/– Rd8 43.Qg4+– Kh7? 44.Nf5?? Qf6+= 45.Ne3 Be6? 46.Qe4+– Bf5 47.Qa4 Qc3?? 48.Nf5 Qa3 49.Rd7 (49.Rd7 Qe7 50.Re7 Kg6 51.Qa6 Kf5 52.g4 Kg5 53.Re5 Kf4 54.Qf6#; 49.Qa3?? Rd1#; 49.Rd8?! Qa4 50.g4 h5+/–) 1–0. Valenta,Vit jr (2180) – Fiser,J (2125), Open, Lilie Litomysl CZE, 2003.

6.c4 Nb6+= 7.cd5 ed5 8.Qc2 Bg4 (8...Bd6 9.Nf3=) 9.Nf3 (9.Be2 Be2 10.Ne2 Bd6=) 9...Bd6 10.Bd3 (10.Ne5 Bc8=) 10...Bf3 11.gf3 Qe7 12.Nc3 (12.Rg1 g6 13.Rg2 Be5=) 12...Nbd7 (12...0–0 13.Rg1 Be5 14.Bf5+=) 13.Ne2 (13.Rg1 Ne5 14.Rg7 Nf3 15.Kd1 Bh2=) 13...Ne5 14.Nd4 g6 (14...0–0 15.Be2=) 15.Be2 Bc5 (15...Ned7 16.0–0=) 16.a4 (16.f4 Ned7+=) 16...Ned7 17.Nb3 (17.Rc1 Rc8=) 17...Bd6 18.Bc3 (18.Bd4 h6=) 18...b6 (18...Bb4 19.Bd4 Rc8 20.Rb1=) 19.Nd4+= h5 (19...Nb8 20.0–0+=) 20.Bb2 Rg8 21.h3 Nc5 (21...h4 22.0–0+=) 22.h4 (22.Nc6 Qe6+=) 22...Kf8 (22...Rc8 23.Nc6 Qe6 24.Rc1+=) 23.Nc6 Qe6 24.Bf1 Nh7 25.Bh3 f5 26.0–0–0 (26.Rc1 Ke8+/–) 26...Nf6 (26...Ke8 27.Bg2+/–) 27.d3 Ne8 (27...Kg7 28.Rhg1 Kh7 29.f4+/–) 28.Rdg1 Nf6? (28...Kf7 29.Rg5+/–) 29.Rg2 (29.d4 Na4 30.Qa4 Ke8+–) 29...Re8? (29...Kf7 30.Rhg1+/–) 30.Rhg1 (better is 30.d4 Nb7 31.Rg6+–) 30...Kf7+/– 31.Kb1 Ncd7 32.e4+– de4 33.fe4 Ng4 34.Nd4 Qe7 35.ef5 Nde5 36.f4 Ne3 37.Qb3 N5c4 38.Rg6 Bc5 39.Ne6 Rg6 40.fg6 Kg8 41.dc4 (41.dc4 Qd6 42.Qc3+–) 1–0. Maeurer,Christoph (2310) – Schild,Christoph (2275), BL2–Sued, 2001.

6.c4 Bd6 7.Qc2 c5 8.Nf3 Qc7 9.Be2 b6 10.0–0 Bb7 11.h3 0–0 12.d3 dc4 13.Qc4 Ne5 14.Ne5 Be5 15.Be5 Qe5 16.Nd2 Ne8 17.Qc2 Nd6 18.Bf3 Bf3 19.Nf3 Qh5 20.a4 Rac8 21.Rfd1 Rfe8 22.Rac1 e5 23.Nd2 Re6 24.Nc4 Rb8 25.e4 Rg6 26.Kh1 Qg5 27.f3 h5 28.Qd2 Qe7 29.Qb2 Re6 30.Qd2 h4 31.Rc2 Rb7 32.Rcc1 Ne8 33.f4 ef4 34.Qf4 Rd7 35.Kg1 Rd4 36.Qf2 (36.Qb8 g6=) 36...g6 (36...Qd8 37.e5+=) 37.Qc2 (37.Ra1 Qf6+=) 37...Qd7+= 38.Rd2 Qd8 39.Rcd1 Nd6 40.Ne3 Qg5 41.Re2 Ne4 42.Nc4 Ng3 43.Re6 fe6 44.Re1 (44.Nb6 Rf4 45.d4 cd4–/+) 44...Rf4 45.Qd1 Qf6 46.Qa1 Ne2 47.Kh1 Nc3 (47...Qf5 48.Ne5–/+) 48.Qc1 Nd5 49.Rg1 Kg7 50.Qe1 Nb4 51.Qe2 (51.Nb6? Nd3 52.Qe2 c4 53.Nc4 Nf2 (53...Rc4?! 54.Qd3 Ra4 55.Rb1=) 54.Kh2 Re4–+) 51...Qf5 52.Ne5 (52.Nb6 Nd3 53.Kh2 e5–+) 52...g5–+ 53.Re1 Rf2 54.Qe4 Qe4 (54...Nd5 55.Nd7–/+) 55.de4–/+ Rc2 (better is 55...Nc2 56.Rc1 Ne3–/+) 56.Nd7?? (better is 56.Rd1+=) 56...c4–+ 57.Nb6 Nd3 58.Ra1 (58.Rg1 c3 59.Nc4 Ra2 60.Na5 Ra4–+) 58...Ne5 59.Kg1?? c3 0–1. antinephilehi (2005) – bollewillem (2240), gameknot.com, 2014.

6.c4 Bd6 7.d4 c5 8.bc6 bc6 9.Nf3 Rb8 10.Qc2 Ba6 11.Nbd2 Ne4 (11...0–0 12.Bd3=) 12.Bd3 (12.Rb1 Nd2 13.Nd2 0–0=) 12...f5 13.Rb1 (13.Ne4?? fe4 14.Be4 de4–+) 13...0–0 14.0–0 Qe7 15.c5 (15.Ne4?? fe4 16.Be4 de4–+) 15...Bd3 16.Qd3 (16.cd6?? Bc2 17.de7 Rfe8–+) 16...Bc7 17.Qa6 Rfc8 18.g3 (18.Qc6?? Bh2 19.Nh2 Rc6 (19...Nd2?! 20.Qa6–+) 20.Ne4 de4–+) 18...Ra8 19.Qd3 Rcb8 20.Bc3 Ndf6 21.Ne5 (21.Qc2!?=) 21...Nd2 22.Qd2 (22.Bd2!? Be5 23.de5+=) 22...Ne4–+ 23.Qe1 (23.Nc6? Qe8 24.Ne7 Qe7–+) 0–1. wwgia (1630) – glovio (1995), gameknot.com, 2014.

6.c4 Bd6 7.cd5 ed5 8.d4 (8.Nf3 Nb6=+) 8...0–0 9.Qc2 a4 (9...Nb6 10.Bd3=+) 10.Nc3 (10.Bd3 Re8=) 10...Nb6 11.Bd3 Re8 12.Nge2 Qe7 13.0–0 c6 14.bc6 bc6 15.Rfb1 Ba6 16.Nc1 Bd3 17.Nd3= Nc4 18.Bc1 Ba3 19.Ne5 Bc1 20.Nc4 dc4 21.Rc1 a3 22.Na4 Reb8 23.Nc5= Qa7 24.Ra2 Nd5 25.Qc4 Nb4 26.Raa1+= a2 27.Kf1 Nd5 28.Nd3 Rb6 29.e4= Nc7 30.Ke2 Qa4 31.Qc5 Rab8 32.Qc4= Ra8 33.Qc5 Qa6 34.Qc4 Qc4 35.Rc4 Rb1 36.Rc1= Ra1 37.Ra1 Nb5 38.Nb4 Nd4 39.Ke3 c5 40.Ra2 Ra2 41.Na2 Kf8 42.e5 Ke7 43.Ke4 Nb3 44.Kd5+= Nd2 45.Nc3 c4 46.f4 h5 47.h4 g6 48.Ne2 Nf1 49.Kd4 Ke6 50.Ke4 Nd2 51.Ke3 Nb3 52.Ke4 f6 53.ef6 Kf6 54.Nc3 ˝–˝. Diener,Rudolf – Griesmann, corr ICCF WT–M–628, 1995.

6.c4 Bd6 7.Nf3 0–0 8.Qc2 Re8 9.Be2 e5 10.h4 e4 11.Nd4 dc4 12.Bc4 Ne5 13.d3 Nd3 14.Bd3 ed3 15.Qd3 Ng4 16.Qc2 Qf6 (better is 16...Bg3! 17.fg3 Ne3–+) 17.Nf3+= Bf5 18.Qb3 a4 19.Bf6 ab3 20.Bb2 Be5 21.Nd4 Bd3 22.Bc3 Rad8 23.Nb3 Bg3!! (23...Bb5?! 24.Be5 Ne5 25.N1d2–/+) 24.fg3 Re3 25.Kd2 (25.Kd1 Nf2 26.Kc1 Nh1 27.Bd2–+) 25...Re2 26.Kc1 Rc2 27.Kd1 Ne3 28.Ke1 Re2 0–1. combijack (1805) – tuljabhavani (2040), gameknot.com, 2009.

6.d4 c5 7.Nf3 Bd6 8.c4 b6 9.Nc3 Bb7 10.Be2 (10.dc5 bc5 11.cd5 ed5=) 10...dc4+= 11.Bc4 0–0 (better is 11...cd4 12.Qd4 Qc7+=) 12.Ng5 (better is 12.d5!? ed5 13.Nd5=) 12...cd4 (12...Bg2 13.Rg1 Bb7 14.f4–/+) 13.Qd4 Be5 14.Qd3 (14.Qd2 Qc7 15.Bf1 Nc5–/+) 14...Rc8 (14...Qc7 15.f4 Rfc8–+) 15.Rd1? (15.Be6 fe6 16.Ne6–/+) 15...Qc7–+ 16.Ne6 Qc4 17.Nf8 Kf8 (17...Bc3?! 18.Bc3 Kf8 19.Bf6 Nf6 20.Qc4 Rc4 21.0–0–/+) 18.Qc4 Rc4 19.Rc1 Bg2 20.Rg1 Bf3 21.Nd1 (21.Rg5 Bh2 22.Na2 Rc1 23.Nc1 h6–+) 21...Rc1 (21...Bh2?! 22.Rc4 Bg1 23.Bf6 Nf6 24.Nb2–+) 22.Bc1 Ne4 23.h3 Ndc5 (23...Ndc5 24.Kf1 Nd3–+) 0–1. Rush,Bradley – Ederer,Karel (2105), OP–2012–0–02193, 2012.

6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.e3 a5 6.b5).

6.f4 Bd6 7.Nf3 Qe7 8.Ne5 0–0 9.Bd3 Nc5 10.0–0 Nd3 11.Nd3 a4 12.Nc3 Ra5 13.Ne5 Nd7 14.Nf3 Nb6 15.d3 Bd7 16.Qe1 Rfa8 (worse is 16...Bb5 17.Nd5 ed5 18.Qa5 Qe3 19.Kh1+/–) 17.Qg3 f6 18.e4 d4 (18...Bb5 19.Kh1–/+) 19.e5+= fe5 20.fe5 dc3 21.ed6 Qd6 22.Qd6 cd6 23.Bc3 Rb5 24.Bb4 Rb4 25.ab4 Nd5 26.Ra3 b5 27.c4 bc4 28.dc4 Nb4 29.Rd1 (29.Rb1 Rb8=) 29...Ra6+= 30.Rb1 Nc6 31.Rd3 d5 32.cd5 ed5 33.Rd5 Ra7 34.Ra1 h6= 35.Ra3 Nb4 36.Rc5 Kh7 37.h4 Ra6 38.Kh2 Be6 39.Nd4 Bd7 40.Ne2 Rd6 41.Rc4 Rd2 42.Rb4 Attacking the isolated pawn on a4 42...Re2 43.Rc3 Be8 44.Rc7 Re6 45.g4 Bc6 46.Rf4 Be8 47.Ra7 Rd6 48.h5 Rd7 49.Ra8 Rd2 50.Kg3 Bc6 51.Rb8 Rd3 52.Kf2 Rd6 53.Rc8 Bd5 54.Ra4+– Rf6 55.Kg1 Rb6 56.Rd4 Rb1 57.Kf2 Rb2 58.Ke3 Rb3 59.Kf4 Bf7 60.Rc7 g5 61.Ke4 Kg7 62.Rd6 Rb4 63.Ke5 Rb5 64.Kd4 Rb4 65.Kc3 Rf4 66.Rg6 Kh7 67.Kd3 Rf2 68.Ke3 Rf4 69.Re7 Rf1 70.Ke2 Rf4 71.Rd7 Re4 72.Kf3 Rf4 73.Ke3 Rf1 74.Rb7 Rf4 75.Rc7 Rf1 76.Ke2 Rf4 77.Re7 Kh8 78.Rh6 Kg8 79.Rc6 Rg4 80.Rcc7 Rf4 81.h6 Rf6 82.h7! Kh7 83.Rf7 Kg6 84.Rf6 Kf6 85.Ke3 1–0. Taulien,Hans_Juergen (2350) – Winiger,Albert (2340), RSX5D – X–Mas, 2005.

6.f4 Be7 7.Nf3 0–0 8.c4 (8.Be2 a4=) 8...c6 9.Qc2 h6 10.h4 (10.cd5 Nd5 11.bc6 bc6 12.Qc6 Bb7=) 10...Ne4=+ 11.Bd3 Ndc5 12.Nc3? (12.Bd4 Nd3 13.Qd3 Bd7–/+) 12...f5 (12...Nd3 13.Qd3 Nc5 14.Qc2 dc4 15.0–0–+) 13.Rh3? (13.Rb1 Nd3 14.Qd3 Nc5–/+) 13...Bf6 (Better is 13...Nd3 14.Qd3 Nc5–+) 14.Be2= Qe7 15.d3 Nd6 16.a4 dc4=+ 17.d4 Nce4 18.Ba3 Nc3 19.Qc3 cb5 20.ab5 Qc7 21.Bd6+= Qd6 22.Ra5 Bd7 23.Bc4 Ra5 24.Qa5 Rc8 25.Nd2 Bd8 26.Qa2 ˝–˝. Otte,Marco – Bonnier,Frans, Wag.Intcomp, 1997.

5.b5 Be7

6.a4 Nbd7 7.Nf3 0–0 8.Be2 Bd6 9.0–0 e5 10.c4 e4 11.Nd4 dc4 12.Bc4 Ne5 13.Ba2 (13.Be2 Rb8+=) 13...c5 14.bc6 bc6 (14...Nc6?! 15.f3=) 15.Nc3 (15.f4 Nd3 16.Nc6 Nb2 17.Nd8 Nd1 18.Nf7 Rf7 19.Rd1 Ba6–/+) 15...Ba6 16.Nf5? (better is 16.Nce2!?–/+) 16...Bf1–+ 17.Qf1 Nd3 18.Nd6 Qd6 (18...Nb2?! 19.Nce4 Ne4 20.Ne4+=) 19.Rb1 (19.Ba3 c5–+) 19...Rab8 20.Ba1 Rb1 21.Bb1 Ng4 22.Ne4 (22.f4 ef3! 23.g3–+) 22…Qh2# 0–1. Neumann,Frank (1650) – Ziebarth,Susanne (1810), RSS7E–83 remoteschach.de, 2008.

6.c4 0–0 7.d4 b6 8.Nf3 Nbd7 9.Nc3 Bb7 10.Be2 c5 11.bc6 Bc6 12.0–0 Rc8 13.Qb3 (13.cd5 Nd5 14.Rc1 Nc3 15.Rc3 Nf6=) 13...Qc7 (13...dc4 14.Bc4 Bf3 15.gf3=) 14.Rac1 Qb7 15.cd5 Nd5 16.Nd5 Bd5 17.Qd1 (17.Qb5 Bd6=) 17...b5 18.Qd2 (18.Qd3 Bc4 19.Qd2 Nb6+=) 18...b4 19.ab4 ab4 (worse is 19...Qb4 20.Bc3 Qd6 21.Ba5+/–) 20.Rc8 Rc8 21.Rc1 Rc1 22.Qc1 f6 (22...Bd6 23.Qb1+=) 23.h3 Kf7 (23...Bd6 24.Qf1+=) 24.Qb1= g6 (24...Be4 25.Qf1=) 25.Ne1 Nb6 26.Bf3 Nc4 27.Bd5 Qd5 28.Bc1 Qb5 29.Qb3 Na5 30.Qd3 Qa4 31.Bb2 b3 32.Qc3 Nc4 33.Nd3 Nb2 34.Qb2? Qa2–+ 35.Qc1 Qc2 (35...Qc2 36.Qc2 bc2–+) 0–1. Rush,Bradley – Nicolaescu,Nicolae (1630), 58. LSS No Engine Cup Preliminary, 2012.

6.c4 0–0 7.Nf3 dc4 8.Bc4 c6 9.0–0 cb5 10.Bb5 Bd7 11.Bd7 Qd7 12.Nc3 Nc6 13.d4 Rfd8 14.Qe2 Nd5 15.Rfc1 Bf6 16.Nd5 Qd5 17.Rc5 Qd7 18.Rac1 Rac8 19.Qb5 Be7 20.R5c3 (20.Ne5!? Qc7 21.Nc6 bc6 22.Rc6+/–) 20...Bf6 21.Rc5 Ne7?? (21...Be7 22.Ne5 Qc7 23.Nc6 bc6 24.Rc6 Qd7+/–) 22.Qa5 (better is 22.Qd7 Rd7 23.Rc8 Nc8 24.Rc8 Rd8 25.Rc7+–) 22...Rc5?? (better is 22...b6 23.Qb6 Rb8+=) 23.Rc5+/– Nc6 24.Qb5 h6 25.h3 Nd4?? (better is 25...Ra8+/–) 26.Nd4 Bd4 27.Bd4 Qb5 28.Rb5 Ra8 29.Bc5 f6 (29...Rc8 30.e4+–) 30.Rb7 1–0. Fournier,Frederic (2025) – ojczyzna (2540), Active (4/0), 2004.

6.c4 0–0 7.Nf3 Nbd7 8.d4 c6 9.Nc3 dc4 10.bc6 Nb6 11.Ne5 Rb8 12.c7 Qc7 13.Nb5 Qd8 14.Nc4 Bd7 15.Nc3 Nfd5 16.Qd2 (16.Na5? Na4!? 17.Nb7 Rb7 (< 17...Nb2 18.Nd8 Nd1 19.Nd1–/+) 18.Na4 Qa5 19.Qd2 Qa4–+) 16...Nc4 17.Bc4 Nb6 18.Bd3 Rc8 19.Qe2 Qc7 20.Nb5 Qb8 21.Nc3 Rc7 22.0–0 Rfc8 23.Rac1 Nc4 24.a4 Bb4 25.Na2 Nb2 26.Qb2 Rc1 27.Rc1 Rc1 28.Qc1 Bd6 29.Nc3 Qc7 30.Qb2 Bh2 31.Kh1 Bd6 32.Nb5 Bb5 33.Bb5 g6 34.g3 h5 35.Qb1 Qc3 36.Kg2 Kg7 37.Qe4 Qc7 38.g4 hg4 39.Qg4 f5 40.Qg5 Be7 41.Qg3 Bd6 42.Qf3 Qf7 43.Qd1 g5 44.Qc2 Qf8 45.Bd7 Kf6 46.Qb3 Qf7 47.Qb7 Qh5 48.Qa8 g4 49.Qd8 Be7?? 50.Qa5 Qh3+/– 51.Kg1 Bd6 52.Qd8?? Kg7–+ 53.Qg5 Kh7 54.f4 g3 (55.Qf5 ef5 56.Bf5 Qf5 57.Kg2 Qe4 58.Kg3 Qe3 59.Kg2 Bf4 60.a5 Qe2 61.Kh3 Qf3 62.Kh4 Qg3 63.Kh5 Qg5#) 0–1. Olsson,C (2180) – Leilic,S (2430), Sweden, 1999.

6.c4 0–0 7.Nf3 Nbd7 8.Be2 dc4 9.Bc4 Nb6 10.Be2 Bd7 11.0–0 Qe8 12.a4 Nfd5 13.Nc3 Bf6 ˝–˝. Skrzypczak,Michal (1960) – Kozlowski,Tomasz (1960), Mistrzostwa Sekcji L.K.S. PIAST Srem Poland, 2012.

6.c4 Nbd7 7.Qc2 0–0 8.Nf3 c5 9.d4 b6 10.Nbd2 Bb7 11.Bd3 Rc8 12.0–0 cd4 13.Bd4 h6 14.Qb2 Nc5 15.Be2 Ne8 16.Ne5 Bf6 17.Rfd1 Nd6 18.cd5 Bd5 19.Ng4 Bd4 20.Qd4 Qg5 21.Qe5 Qe7 22.Qg3 Kh8 23.Nf3 Nce4–/+ 24.Qe5 Nf5?? 25.Rd5+/– ed5 26.Qf5 Qc5 27.Nd4 Nd2 28.Nc6 Qc3 The mate threat is Qxa1 29.Rd1 Nc4 30.Qd3 Qa3 31.Qd5 Nb2 32.Rb1 Qc3 33.Qa2 Nd3 34.Bd3 Qd3 35.Nge5 Qe4? 36.Rd1 f6 37.Nf7 Kh7 38.Nd6 Rfd8 39.Nd8 Rd8 40.Rd4 Qe5 41.Qc2 Kg8 42.Qc7 Qc5 43.Qd8 Kh7 1–0. Weigel,Herbert (2160) – Janssen,Helmut (1875), GER–chT Seniors, 2002.

6.d4 0–0 7.Bd3 =+.

6.d4 c5 7.c4 (7.dc5 Bc5 8.Bd3 0–0=) 7...cd4 (7...0–0 8.Qf3=) 8.ed4 (8.Bd4 0–0=) 8...dc4=+ 9.Nc3 (9.Bc4 0–0=+) 9...Qc7 10.Qa4 0–0 11.Bc4 Nbd7 12.Ba2 Bd6 13.Nf3 Nb6 14.Qc2 Bd7 15.Rc1 Rfc8 16.Qe2 Bf4 17.Rd1 Nbd5 18.Nd5 ed5 19.Ne5 Re8 20.Qf3–/+ Be5 21.de5 Bg4 22.Qd3 Bd1–+ 23.Qd1 Re5 24.Kf1 Rf5 25.Bf6 Rf6 26.f3 Qc5 27.a4 Rc8 28.Bb3 Qc1 29.h3 d4 30.Kg1 Qe3 31.Kh2 Qf4 32.g3 Qf3 33.Rg1 Qe3 34.Bd5 Rf2 35.Bg2 Rcc2 36.Qg4 Qe2 37.Qe2 Rfe2 38.g4 d3 39.Rd1 Rg2 40.Kh1 Rg3 41.Re1 Kf8 42.Rd1 d2 43.g5 0–1. Novag – Mephisto Mondial, 1994.

6.Nf3 c5 7.bc6 bc6 8.Nc3 Ba6 9.Ba6 Na6 10.d4 Rb8 11.Rb1 c5 12.Na4 Qd7 13.c3 (13.Nc5 Nc5 14.dc5 0–0= (14...Bc5? 15.Bf6 0–0 16.Rb8 Rb8 17.Be5+–)) 13...Qb5 (13...c4 14.Ne5 Qc7 15.Nf3–/+) 14.Ne5 (14.c4!? dc4 15.dc5 Nc5 16.Nc5 Qc5 17.Qa4 Qb5 18.Qb5 Rb5 19.0–0–/+) 14...cd4–/+ 15.cd4 Ba3! 16.Nc3 (16.Ba3 Qb1 Pinning (16...Qb1 Deflection)) 16...Qb4 (16...Qb3 17.Qb3 Rb3 18.Ba3 Rc3 19.Bc1–/+) 17.Nc6 (better is 17.Ba1!? Qd6 18.Qa4 Nd7 19.0–0=) 17...Bb2–/+ 18.Nb4 Bc3 19.Ke2 Bb4 (19...Nb4?! 20.Qb3 0–0 21.Qc3=; 19...Rb4 20.Rc1 Rb2 21.Rc2+/–) 20.Qa4 Nd7?? (20...Ke7 21.Rhc1–+) 21.Rhc1?? (better is 21.Qc6+/–) 21...Ke7–/+ 22.Rc6 Rb6?? (better is 22...Bd6 23.Rb8 Nab8–/+) 23.Rb6+/– Nb6 24.Qb5 Nc4 25.Qa6 Rd8 26.Qb7 Rd7 27.Qb8 Rd8 (27...h6 28.Kd3+–) 28.Qa7 (better is 28.Qg3!? g6 29.Qh4 Ke8 30.Qh7+–) 28...Rd7+/– 29.Qb8 Rd8 30.Qb7 (better is 30.Qg3 g6 31.Qh4 Ke8 32.Qh7+–) 30...Rd7= 31.Qb8 ˝–˝. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

6.Nf3 Nbd7 7.c4 c6 8.Nc3 0–0 9.Be2 Nb6 10.cd5 cd5 11.0–0 Ne8 12.Rc1 Nd6 13.a4 Bf6 14.d4 Re8 15.Bd3 Ndc4 16.Qe2 Qe7 17.Rc2 Nb2 (17...Bd7 18.Rb1=) 18.Rb2+= g6 19.Rc1 Qf8 20.Qd1 Be7 21.Nb1 Bd6 22.Qb3 f6 23.Rbc2 Kh8 24.Nbd2 Bd7 25.e4 Ba3 26.Ra1 Bb4 27.e5 f5 (27...Rac8 28.Raa2+=) 28.Rc7 Rec8 (28...Rab8 29.Rac1+=) 29.Rac1 (better is 29.Rb7!? Rc3 30.Qb1+/–) 29...Qd8+= 30.Rc8 Rc8 31.Rc8 Qc8 32.Qc2 (32.Qd1!?+=) 32...g5= 33.Nb1 h6 34.Qc8 Bc8 35.Bc2 Nc4 36.Kf1 Bd7 37.Ke2 Be8 38.Nfd2 Nb6 39.g3 Bh5 40.Ke3 Kg7 41.f4 Bg4 42.Kf2 (42.Kd3 gf4 43.gf4 Bh3=) 42...Kg6 43.Nf3 gf4 44.gf4 Bf3 45.Kf3 Kh5 46.Bd1 Kh4 47.Kg2 (47.Ke2 Nc4–/+) 47...Nc4–+ 48.Kf2 Nb2 49.Bc2 Kh3 50.Bf5?? (better is 50.Kg1–+) 50...ef5 51.e6 Nc4 0–1. Weigel,Hans Juergen (1935) – Weiss,Siegfried (2130), Hamburg–ch qual1, 2003.

6.Nf3 Nbd7 7.d3 0–0 8.Nbd2 b6 (8...Nc5 9.c4+=) 9.d4 Bb7 10.Bd3 Qc8 11.Rc1 c5 (11...Ne4 12.c4=) 12.bc6+= Qc6 13.c4 Rac8 14.0–0 Ne4?? (better is 14...dc4 15.Nc4 Qd5+=) 15.cd5+– Qd5 (15...Qd6 16.Ne4 Rc1 17.Qc1 Qd5+–) 16.Be4 Rc1 (16...Qe4 17.Ne4 Be4 18.Qa4+–) 17.Qc1 (17.Qc1 Qd6 18.Bb7+–) 1–0. Amor Alcaide,Manuel (1945) – Collell Rodriguez,Victor, 13th Obert Internacional Sant Marti Gro, 2011.

6.f4 0–0 7.Nf3 Nbd7 (7...Ne4 8.Nc3+=) 8.Bd3 (8.Be2 Ne4=) 8...Nc5 (8...c6 9.Ne5=) 9.Be2 Na4 10.Be5 (10.Bd4 c5 11.bc6 bc6=) 10...Nd7 11.d4? (better is 11.0–0=) 11...f6–+ (11...Ne5?! 12.fe5 Bh4 13.g3=) 12.0–0 (12.c4 Nb2 (12...Ne5?! 13.fe5 Nb2 14.Qc2 Nc4 15.Bc4 dc4 16.Qc4=) 13.Qc2 Nc4 (13...Ne5?! 14.fe5 Nc4 15.Bc4 dc4 16.Qc4=) 14.Bc4 dc4 (14...fe5?! 15.Be2–/+; 14...Ne5?! 15.fe5 dc4 16.Qc4=) 15.Qc4 fe5 (15...Ne5?! 16.de5 fe5 17.Ne5=) 16.Qe6 Rf7–+) 12...fe5 (12...Ne5?! 13.fe5 fe5 14.Ne5=) 13.fe5 Ndb6 14.Re1 (14.Qe1 Qe8–+) 14...Bd7 (14...Qe8 15.e4–+) 15.Qd3 Nb2 16.Qb3 N2c4 17.a4 Be8 (17...c6 18.Bc4 dc4 19.Qb2–+) 18.Nbd2 Nd2 19.Nd2 Bg6 20.Rf1 Qd7 21.c4 dc4 (21...Bb4 22.Nf3–+) 22.Nc4 Be4 23.Nd2 Bd5–+ 24.Qc2 Bb4 25.Nf3 Bf3 26.Bf3 Nd5 27.Qd3 Rad8 28.Be4 g6 29.Bg6? hg6 30.Qg6 Kh8 31.Qh6 Qh7 32.Rf8 Rf8 33.Qe6 Ne3 34.Rc1 Bd2 35.Ra1 Bc3 36.Rc1 Bd4 37.Kh1 Ng2! 38.Qg4 Nf4 39.Qf3 Be5 40.Re1 Bd6 41.Qc3 Qg7 42.Qd2 Rg8 (42...Rg8 43.Qf2 Qg2 44.Qg2 Rg2–+; better is 42...Bb4 43.Rg1 Bd2 44.Rg7 Kg7 45.h4–+) 0–1. Soler,Carlos – Jimenez,Inigo, Navarra–chT Preferente, 1997.

6.f4 c5 7.Nf3 Nbd7 8.c4 0–0 9.Be2 Ne4 10.0–0 Bf6 11.Ne5 Nd6 12.Qc2 dc4 13.Bc4 Nc4 14.Qc4 Be5 15.fe5 b6 16.Nc3 Bb7 17.Ne4 Be4 18.Qe4+= Rb8 19.a4 Qc7 20.Ra3 Qb7 21.Qc2 Rfd8 22.d4 Rbc8 23.Qf2 Nf8 24.Rc3 cd4 25.ed4 Ng6 26.Rf3 Rd7 27.h4 Nh8 28.h5 h6 29.Rg3 Rdc7 30.Qf6 g6 31.hg6 Ng6 32.Ba3 Kh7 33.Rh3 Rh8? 34.Bc1+– Kg8 35.Bh6 Rh7 36.Qd8 Nf8 37.Qf8# 1–0. Deline,R – Brosseau,Y, Rowyn, 1989.

6.Nf3 0–0

7.c4 c6 8.d4 Bd7 9.a4 (9.Nc3 cb5 10.cb5 a4=) 9...c5 (9...Ne4 10.Ba3=) 10.dc5 Bc5 11.Bd3 (11.cd5 Nd5 12.Bc4 Qc7 13.Bd5 Bb4 14.Nbd2 ed5+=) 11...dc4 12.Bc4 Qe7 (12...Bb4 13.Nfd2=) 13.0–0+= Rd8 14.Nbd2 Be8 (14...Bc8 15.Qc2+=) 15.Qc2 (15.Bf6 Qf6 16.Ne4 Qe7+=) 15...Nbd7 16.Ne4 Ne4 (16...Bb4 17.Nf6 Nf6 18.Rad1+=) 17.Qe4 Nf6 (17...Nb6 18.Bb3+=) 18.Bf6+/– Qf6 (18...gf6 19.Qh4+/–) 19.Qb7 Qc3 (19...Qf5!? 20.Rad1 Rab8+/–) 20.Qe4+– Bb4 (20...Qf6 21.Rad1+–) 21.Rac1 (21.Ng5 g6+–) 21...Qa3 (21...Qf6 22.Bd3 Qh6 23.Rfd1+–) 22.Ng5 g6 (22...h6 23.Ra1 Qc3 24.Rfc1+–) 23.Be6! fe6 (23...Be7 24.Bd5 Rac8 25.Rc8 Rc8+–) 24.Qe6 Kh8 (24...Kg7 25.Rc7 Rd7 26.Rd7 Bd7 27.Qe5 Kf8 28.Qh8 Ke7 29.Qa8 Qd3+–) 25.Rc7 1–0. Janek – ijmagen, internet, 2017.

7.d4 c5 8.dc5 Bc5 9.Be2 b6 10.0–0 Bb7 11.c4 Nbd7 12.Nbd2 Qc7 13.Rc1 Rfc8 14.cd5 Bd5 15.Bc4 Qd6 16.a4 Bb4 17.Qb3 Bd2 18.Nd2 Ng4 19.g3 Bb7 20.Be2 Qd2=+ 21.Bg4 Nc5 22.Qa3 Na4 23.Rc8 Rc8 24.Bg7 Qd5 25.f3 Qb5 26.Qa1 Qd3 27.Bh5? Qe3–+ 28.Kh1 Nc3 (28...Nc3 29.Bc3 Qc3–+) 0–1. Fournier,Frederic – Mephisto Mondial, Match Active, 1999.

7.Be2 c5 8.c4 b6 (8...Nbd7 9.0–0 b6 10.Nc3 Bb7 11.h3 Bd6 12.cd5 ed5 13.Qc2 g6; 8...dc4 9.0–0 Nbd7 10.Bc4 b6 11.Nc3 Bb7 12.d4 Qc7 13.d5 ed5) 9.d4 (9.0–0 Nbd7= (9...Bb7 10.cd5 ed5 11.Qc2 Nbd7 12.Nc3 Bd6 13.g3 Re8) 10.cd5 ed5 11.Nc3 Bb7 12.Qc2 Bd6 13.a4 Qe7) 9...Nbd7+= (9...Bb7 10.Nc3 Nbd7 11.0–0 Rc8 12.cd5 Nd5 13.Rc1 Bd6) 10.Nbd2 (10.Nc3 Bb7 11.0–0 Rc8 12.Rc1 cd4 13.Qd4 dc4) 10...Bb7 11.0–0 Qc7 (11...Rc8 12.Rc1+= cd4 13.Nd4 Nc5; 11...h6 12.Rc1 Rc8 13.cd5 Bd5) 12.Rc1= Rac8 13.Bd3 Qb8 (13...Qd6=) 14.Bb1 (14.Qe2 cd4 15.ed4 Qf4=) 14...Qa8 (14...cd4 15.ed4 Qf4 16.Re1+=) 15.Ne5 (15.Qe2 cd4 16.ed4 Qb8=) 15...dc4 (15...cd4 16.ed4 dc4 17.f3+=) 16.Nd7+= Nd7 17.dc5 (17.d5 Bd5 18.e4 Bb7+=) 17...Rc5 (17...Bg2? 18.Qg4 Bf6 19.Bf6 Nf6 20.Qg2 Qg2 21.Kg2 Rc5 22.Nc4 Rb5 23.Rfd1+–) 18.f3 (18.Nc4 Bg2 19.f4 Bf1 20.Qf1 Rfc8–+ (20...Rb5 21.Qd3 Nf6 22.Bf6 Rb1 23.Rb1 Bf6 24.Nb6–+)) 18...Bf6 (18...c3 19.Bc3 Rfc8 20.Ne4+=) 19.Bf6 (19.Qc2 g6 20.Bf6 Nf6+=) 19...Nf6 (worse is 19...gf6 20.Nc4 Rd8 21.Qd4 Rb5 22.Rcd1+=) 20.Rc4 (20.Nc4 Rb5 21.Qe2 Qa7+=) 20...Rb5–/+ 21.Qc2 (21.Ne4 Be4 22.Be4 Ne4 23.fe4 Rc5 24.Rc5 bc5–/+) 21...Rc8 (21...Qb8!? 22.Rd1 Rd8–/+) 22.Rc8 Qc8 23.Qc8 Bc8 24.Rc1 Bd7 25.Kf2 (25.e4 Be8+=) 25...Rb2 26.Rc2 Rc2 27.Bc2 Bc6 28.e4 Nd7 29.Ke3 Kf8 30.Kd4 e5 31.Kc3 Ke7 32.Nc4 f6 33.Bb3 Bb5 34.Ne3 g6 35.Nd5 Kd6 36.Ne3 Bc6 37.h4 b5 38.h5 gh5 39.Bf7 Kc5 40.Bh5+= b4 41.Kb2 Nb6 42.Bf7 Bb5 43.Ng4 Bc4 44.ab4 ab4 45.Bc4 Kc4 46.Ne3? Kd3–+ 47.Nd5 Nd7 48.Kb3 Ke2–/+ 49.Kb4? Kf2–+ 50.Kb5 Kg2 51.Kc6 Kf3 52.Kd7 h5 53.Nf6 h4 54.Ke6 h3 55.Ke5 h2 56.Kd6 h1Q 57.e5 Qh6 58.Ke7 Kf4 59.Nd7 Kf5 60.Kd8 Ke6 61.Kc8 Qh8 62.Kc7 Qg7 (62...Qg7 63.Kb7 Qd7 64.Kb6 Qd4 65.Kb7 Qb2 66.Kc6 Qe5 67.Kb7 Kd7 68.Kb6 Kd6 69.Kb7 Qb5 70.Kc8 Qb3 71.Kd8 Qg8#) 0–1. Rabbitte,L (2030) – O'Toole,G (2185), Sheffield ENG, 2011.

7.Be2 c6 8.bc6 bc6 9.0–0 Ba6 10.Ba6 Na6 11.d3 Nc5 12.c4 dc4=+ 13.dc4 Qd1 14.Rd1 Na4 15.Bd4 c5 16.Be5 Nb6 17.Nbd2+= Rfd8? 18.Rab1 Na4 19.Kf1 Ng4 20.Ba1 e5?? 21.h3+– e4 22.hg4 ef3+/– 23.Nf3 Rd1 24.Rd1 Nb6 25.Ne5 Rd8? 26.Rd8+– Bd8 27.Nc6 Bf6 28.Na5?? Ba1–+ 29.Nb7 Bc3 30.Nc5–/+ Be5 31.Nd3 Nc4 32.e4 Nd2 33.Ke2–/+ 0–1. Fournier,Frederic – andre01, Club Owl21 Owl21.com, 2007.

7.Be2 Nbd7 8.0–0 Bd6 9.d3 c6 10.c4 cb5 11.cb5 b6 12.a4 Bb7 13.Nbd2 Rc8 14.Nb3 Qc7 15.Qd2 Bb4 16.Qc1 Qd6 17.Qb1 e5 18.Rc1 Rc1 19.Qc1 Rc8 20.Qd1 Bc3 21.Bc3 Rc3 22.d4 e4 23.Nfd2 Nf8 24.Rc1 Rc1 25.Qc1 Ne6 26.h3 Qb4 27.Qa1 h6 28.g3 Bc8 29.Kg2 Bd7 30.Kh2 Ng5 31.h4 Ne6 32.Kg2 Nf8 33.Kh2 Ng6 34.Kg2 Be6 35.Kg1 Bg4 36.Bg4+= Ng4 37.Kg2 Ne7 38.Kg1 Kf8 39.Kg2 Ke8 40.Kg1 g6 41.Kg2 h5 42.Kg1 Kf8 43.Kg2 Nh6 44.Kh2 Nhg8 45.Kg2 Nf6 46.Kg1 Nd7 47.Kf1 Kg8 48.Ke1 Nf6 49.Nc1 g5 50.hg5= Nh7 51.Ne2 Ng5 52.Nc3 Ne6 53.Qc1 Kf8 54.Qc2 Ng5 55.Kf1 Ne6 56.Qb3 ˝–˝. Fournier,Frederic – Mephisto Mondial, Match Active, 2001.

7.Be2 Nbd7 8.0–0 Ne4 9.d3 Bf6 10.Bf6 Qf6 11.Nd4 Nd6 12.Nc3 Qh6 13.Qd2 e5 14.Nf3 c6 15.Rfb1 f5 16.e4 (better is 16.d4!? e4 17.Ne1=) 16...Qd2–/+ 17.Nd2 d4 18.bc6 bc6 (18...dc3!? 19.Nc4 Nc4 20.cd7 Bd7 21.dc4 Bc6+=) 19.Na4= fe4 20.Ne4 Ne4 21.de4 Rd8 22.f3 Kf8 23.Kf2 Ke7 24.Rb2 g5 25.Rab1 g4 26.f4 Nf6 27.fe5 Ne4 28.Kg1 Rf8 (28...Bf5!?+=) 29.Bd3 Ng5 30.Nb6 Ra7 31.Nc8 Rc8 32.Bf5 Rcc7 33.Bg4 Nf7 34.Rd1 Ne5 35.Rd4 Ng4 36.Rg4 Kd6 37.Rb3 Rf7 38.Rd3 ˝–˝. Fournier,Frederic (2330) – Mcerik (2350), echecsemail.com (Team Cup), 2007.

7.Be2 Ne4 8.0–0 Bf6 9.Bf6 Qf6 10.d4 c6 11.c4 Bd7 12.a4 dc4 13.Bc4 Nd6 14.Qb3 cb5 15.ab5 Qf5 16.Nc3 Rc8 17.Be2 Ne4 18.Ne4 Qe4 19.Rfc1 h6 20.Rc8 Bc8 21.Rc1 Nd7 22.Bd3 Qd5 23.Qc3 Nb6?? (better is 23...Qd6+=) 24.Qc7+– Qb3 (24...Nd7 25.e4 Qb3 26.Qd8 Kh7+–) 25.Qd8 (25.Qb6?! Qd3 26.Qd8 Kh7+–) 1–0. Fournier,Frederic (1875) – littledjin (1895), Active (5/3), 2004.

5.c3 ab4

6.ab4 Ra1 7.Ba1 Nc6 8.Be2 Bd6 9.Bb2 e5 10.b5 Ne7 11.d4 ed4 12.cd4 0–0 13.Nc3 c6 14.bc6 bc6 15.Bd3 Qb6 16.Qc2 Ba6 17.Ba6 Qa6 18.Nge2 Rb8 19.0–0 Qb6 20.Rb1 Qc7 21.Ng3 Ng6 22.Nd1 Ra8 23.Rc1 Ne7 24.Nc3 Qb8 25.Rb1 Qb4 26.Bc1 Qc4 27.Rb7 Ra1 28.Qb2 Qa6 29.Nge2 Kf8 30.f3 Ng6 31.h3 Qa3 32.Kf2+= Qb2 33.Bb2 Ra8 34.Bc1 Kg8 35.e4+= de4 36.fe4 c5 37.e5 cd4 38.ed6 dc3 39.Nc3 (The passed pawn on d6 will become decisive later) 39...Rd8 40.Rb6 Nd7 41.Rb5 Nde5 42.Rd5 f6 43.Ne4 Kf7 44.Be3 Ke6 45.Rd1 Nd7+= 46.g4 Rc8 47.Ng3 Nge5 48.Nh5 g5 49.Ng7+/– Kf7 50.Nf5 Ke6 51.Bd4 Rc2 52.Kg3 Nc5 53.Be5 fe5 54.d7! Nb7 55.d8N Nd8 56.Rd6 Kf7 57.Rd8 (57...Rc3 58.Kg2 Rc2 59.Kf3 Rc3 60.Ke4 Rh3 61.Rh8+– (61.Ke5?! h5+–)) 1–0. Psion – Psion, 4', 1989.

6.cb4 c5 7.bc5 (7...Bc5 8.Nf3=+). mickster the king – magne, ChessWorld.net, 2005.

6.cb4 Bd6 7.Be2 0–0 8.Nf3 Qe7 9.0–0 c5 10.b5 (10.bc5 Bc5 11.Nc3 Bd7= (11...Ba3 12.Nb5 Bb2 13.Ra8+–)) 10...c4 11.Nc3 (11.d3 cd3 12.Qd3 Nbd7+=) 11...Nbd7 (worse is 11...Ba3 12.Nb1 Bb2 13.Ra8+/–) 12.a4 b6 13.Nd4 Nc5 14.Nc6 Qe8 15.d3 cd3 16.Bd3 Nd3 (16...Bd7 17.Nd4+=) 17.Qd3= Bb7 18.Nd4 e5 19.Nf5 Bc5 20.Nd5?? (better is 20.f4+=) 20...Bd5–+ 21.f3? (21.Qc3 Nd7–+) 21...Rd8 (21...Qe6 22.Rfd1–+) 22.Kh1 (22.Qc3 Nd7–+) 22...Bf3! 23.Qc4 (23.Rf3 e4 Double attack (23...Rd3 Discovered attack; 23...e4 Decoy); 23.gf3 Rd3 Discovered attack) 23...Bd5 24.Qe2 (24.Qh4 Ne4–+) 24...Be4 25.Rad1 Nd5 (25...Rd1 26.Qd1 Qa8 27.Qe2–+) 26.Bc1 (26.Qg4 Bf5 27.Qf5 Ne3 28.Rd8 Qd8 29.Qe5 f6 30.Qe6 Kh8–+) 26...g6 (better is 26...Qe6 27.Ng3 Nc3 28.Qh5–+) 27.Ng3 f5 (better is 27...Nc3!? 28.Ne4 Ne2 29.Nf6 Kg7 30.Ne8 Rfe8 31.Bd2–+) 28.Ne4 fe4 29.Rf8 Kf8 30.Rf1 Kg7 31.Rf2 (31.Qc2–+) 31...Nc3 32.Qc2 Rd3 33.Qb3 Nd5 34.Qc4 Rd1 35.Rf1 Rf1 36.Qf1 Ne3 37.Be3 Be3 38.g3 Qd7 39.Qe2 Qd3 40.Qa2 Qf1 0–1. Willi_weizenkeim – Ulibear, playchess.de, 2004.

5.c3 Bd6

6.d4 Nbd7 7.Nf3 0–0 8.Nbd2 Qe7 9.c4= dc4 10.ba5 c3 11.Bc3 Nd5 12.Qc2 N7f6 13.Bb2 Ng4 14.e4 Bf4 15.Nb3 Rd8 16.Rb1 Nde3 17.fe3 Be3 18.h3 Nf2 19.Rh2 f5 20.Ke2 f4 21.Bc1 e5 22.Be3 ed4 23.Bd4 Ne4 24.Re1 Bf5 25.Kd1 c5 26.Bd3 cd4 27.Be4 Be4 28.Re4 Qf6 29.Qc4 Kh8 30.Qe6 Qf8 31.Ne5 Re8 32.Qd5 Re7 33.g3 Qe8 34.gf4 Rc7 35.Nd4 Qh5 36.Kd2 h6 37.Ne6 Re7 38.Rg2 Kh7 39.Rb4 Qh3 40.Qe4 Kg8 41.Ng7 Rd8 42.Ke2 Re5 43.fe5 Kh8 44.Ne6! Qh5 45.Kf2 Rd2 46.Kg3 Rg2 47.Kg2 Qf5 48.Qf5 b5 49.Qf6 Kh7 50.Qg7# 1–0. bambinik – einze, internet, 2002.

6.Nf3 0–0 7.d4 Nbd7 8.Bd3 Re8 9.Nbd2 e5 10.de5 Ne5 11.Ne5 Be5 12.h3 ab4 13.ab4 Be6 14.Ra8 Qa8 15.Nf3 Qa2 16.Qa1 Qa1 17.Ba1 Bd6 18.Ng5 Bd7 19.Bb2 c5 20.bc5 Bc5 21.Nf3 b5 22.0–0 b4 23.cb4 Bb4 24.Rb1 Be7 25.Bd4 h6 26.Rb7 Bd6 27.Bf6 gf6 28.Rd7 1–0. marekt – NN, GameColony.com, 2002.

5.c3 e5

6.Nf3 Nbd7 7.d3 Bd6 8.Be2 0–0 9.Nbd2 Qe7 10.b5 Re8 11.0–0 e4 12.de4 de4 (worse is 12...Ne4 13.c4+=) 13.Nd4 Qe5 14.g3 Qg5 15.a4 h5 (15...Nc5!?–/+) 16.Nc4= Ne5 17.Qb3 (17.Nd6 cd6 18.Ba3 Bh3+=) 17...h4 18.Ne5 Be5 19.Bc4 Qh5 0–1. Trokenheim,Marek (1770) – Dovganenko,Andrej (1960), RB–2012–0–00180, 2012.

6.Nf3 Bg4 7.d4 =+.

4...a6

5.Nc3 c5 6.bc5 Bc5 7.Nf3 0–0 8.d4 Bd6 9.Bd3 Nbd7 10.0–0 Qc7 11.Rb1 =+.

5.c4 a5 6.Qa4 Bd7 7.b5 Be7 8.Be5 c6 9.Nf3 =.

5.c4 Bd7 6.Nf3 Nc6 (6...dc4 7.Bc4 b5 8.Be2=) 7.d3 b6 (7...Qe7 8.Nc3=) 8.Qc2 Be7 (8...Bd6 9.Be2=) 9.Be2+= 0–0 (9...dc4 10.dc4 Nb8 11.0–0+=) 10.0–0 Bd6 (10...Re8 11.Nbd2+=) 11.c5 bc5 (11...Be7 12.Nbd2+=) 12.bc5 Be7 13.Nbd2 Re8 (13...Rb8 14.Rfb1+=) 14.Rab1 Bf8 (14...Rf8 15.Bc3+=) 15.Ne5+/– Ne5 16.Be5 Qe7 (16...Bc6 17.Nf3+/–) 17.c6 (17.Bc7?! Qc5 18.Qc5 Bc5=) 17...Bc8 18.a4 (18.Rb3 a5+/–) 18...h6 (18...Qd8 19.a5+/–) 19.a5 (19.d4 a5+/–) 19...Nh7 20.d4 f6 21.Bg3 e5 22.de5 fe5 23.e4 Qf7 24.Bd3+– Ng5 25.ed5 e4 26.Ne4 Ne4 27.Be4 Rd8 28.Bg6 Qd5 29.Bc7 Bh3 30.Be4 Qg5 31.Qb3 Kh8 32.Bd8 Rd8 33.Qh3 Bd6 34.Rfd1 Qf6 35.Qf5 Bh2 36.Kh2 Qh4 37.Kg1 Rd1 38.Rd1 (38...Kg8 39.c7 Qf2 40.Kf2 g6 41.c8Q Kg7 42.Qg6#) 1–0. pierre – meganadamowen, ChessWorld.net, 2005.

5.Bd3 c5 6.bc5 Bc5 7.Nf3 0–0 8.0–0 Nc6 9.Ne5 =.

5.Bd3 Bd6 6.Nf3 Nc6 7.Be2 0–0 8.d4 Bd7 9.0–0 =.

5.Bd3 Nbd7 6.Nf3 Bd6 7.0–0 0–0 8.Qe2 e5 9.e4 =+.

5.d4 Nc6 6.Nf3 b5 7.c3 (7.Nbd2 Bd6=) 7...Bb7 (7...Bd6 8.a4 ba4 9.Ra4=) 8.Bd3 g6 (8...Bd6 9.Nbd2=) 9.0–0 Bg7 10.a4 Na7 11.ab5 Nb5 12.Qa4 c6 (12...0–0 13.Nbd2+=) 13.Nbd2+/– 0–0 14.Ne5 Nd7 15.Nd7 Qd7 16.Nb3 Qc7 17.c4 dc4 18.Bc4 Nd6 19.Bd3 Nf5 20.Nc5 Rfb8 21.Qc2 a5 22.ba5 Ra5 23.Ra5 Qa5 24.Ra1 Qc7 25.Ra4 Nd6 26.e4 Bc8 27.Ba1 Bf8 28.h3 Bg7 29.e5 Nb5 30.Bb2 Qd8 31.Be4 Bd7 (31...Nc7 32.Bc6 Nd5 33.Ba3+/–) 32.Nd7+– Qd7 33.Bc6 Rc8?? (better is 33...Qc7+–) 34.Rc4 (34.Bd7?! Rc2 35.Rb4 Rb2 36.Rb2 Nd4 37.Rb8 Bf8+–) 34...Rc6 35.Rc6 Nd4 (35...Bf8 36.Rb6 Qc7 37.Qc7 Nc7+–) 36.Rc8 Bf8 37.Qc5 (37.Qc5 Ne2 38.Kh2 Qc8 39.Qc8+–) 1–0. nordlicht (1945) – aldrinjason (1675), gameknot.com, 2013.

5.Be2 b6 6.Nf3 c5 7.b5 ab5 8.Bb5 Bd7 9.a4 Nc6 10.0–0 Bd6 11.h3 0–0 12.c4 dc4 13.Bc4 Qe7 14.Nc3 Ne5 15.Ne5 Be5 16.f4 Bc3 17.Bc3 Ne4 18.Bb2 Nd6 19.Be2 Rfb8 (19...Bc6 20.Qc2+=) 20.Bf3= Ra7 21.Qc2 f6 22.Rfb1 Qe8 23.Qd3 (23.a5 Bc6 24.Bc6 Qc6+=) 23...Nf7+= 24.Bd1 (24.Be4 h6+= (worse is 24...Ra4 25.Bh7 Kh8 26.Bg6+/–)) 24...Ba4–/+ 25.Qe4 Bc6 26.Qc4 Rba8 27.Ra7 Ra7 28.Bh5 Qd7 29.Bc3 Nd6 (29...Ra4 30.Qe2 b5 31.Bf7 Qf7 32.Rb5 Bb5 33.Qb5–/+) 30.Qe2? (better is 30.Rb6 Nc4 31.Rb8 Qe8 32.Be8 Be8 33.Re8 Kf7 34.Rc8=) 30...b5–+ 31.d4 Ne4 32.Bb2 Ng3 33.Qg4 Nh5 34.Qh5 cd4 35.Bd4 (35.ed4 Ra2–+) 35...Ra2 36.Rb2 Rb2 37.Bb2 Qd2 38.Qg4 Qe3 (38...Qb2?! 39.Qe6 Kf8 40.Qc6=) 39.Kh2 Kh8 40.Bf6 (40.Qg3 Qe4 41.h4–+) 40...gf6 41.Qh4 Kg7 42.Qg4 Kf8 43.Qh4 Qd4 44.Qh6 Kg8 45.Qh4 b4 46.Qg4 Kf7 47.Qh5 Kf8 48.Qh6 Kg8 49.Qh4 b3 (better is 49...Qd5 50.Qf2 b3 51.Qg3 Kf7 52.Qf2–+) 50.Qg3 Kf7 51.Qb3 Qf4 52.Kg1 Qc1 53.Kh2 Qd2 54.Qg3 Qg2! 55.Qg2 Bg2 56.Kg2 Kg6 57.Kg3 Kh5 58.h4 e5 59.Kh3 f5 60.Kg3 f4 61.Kh3 e4 (61...e4 62.Kg2 Kh4–+) 0–1. mikebaldini (1725) – liviuc4 (1790), gameknot.com, 2014.

5.Qf3 Bd6 6.Bf6 Qf6 7.Qf6 gf6 8.d4 =.

5.Qf3 Be7 6.Bf6 Bf6=+ 7.c3 e5 8.e4 Be6 9.h4 Bh4–/+ 10.g3 Bf6 11.a4 Qd6 12.a5 0–0 13.Qd3 d4 14.Nf3 dc3 15.Nc3 Qd3 16.Bd3–/+ Rd8 17.Be2 b5 18.Rh5 Bg4 19.Rh2 Bf3 20.Bf3 Nc6 21.Nd5 Bg5 22.Rb1 Ra7 23.Rh5 h6 24.d3 Ne7 25.Ne7=+ Be7 26.Re5 Bf6 27.Rc5 Rd3 28.Be2? Rd4–+ 29.f3 Be7 30.Rd5 Bb4 31.Kf1 Rd5 32.ed5 Ba5 33.Rc1 Ra8 34.f4 Re8 35.Rc6 Ra8?? 36.Bf3?? Kf8 37.d6 cd6 38.Rd6 Ke7 39.Rd4? Rd8 40.Re4? Kf6 41.Bh5 g5 42.fg5 hg5 43.Re2 Bb6 44.Bg4 a5 45.Rc2 Rd6 46.Be2 b4 47.Bb5 Ke5 48.g4 Rf6 49.Kg2 Rf4 50.Kg3 f5 51.Be2 fg4 52.Bg4 b3 53.Rb2 a4 54.Bd7 Bf2 55.Kg2 g4 56.Ba4 Ra4 57.Kf2 Rb4 58.Kg3 Kd4 59.Rf2 Kc3 60.Rf1 b2 (61.Re1 Kc2–+) 0–1. aligarjon – Andy HB, ChessWorld.net, 2005.

5.Nf3 h6 6.Be2 c5 7.bc5 Bc5 8.0–0 0–0 9.c4 dc4 10.Bc4 Nc6 11.d4 Be7 12.Nc3 Nd5 (12...b5 13.Bd3=) 13.Qc2+= Bd7 (better is 13...Nc3!? 14.Qc3 Bd7+=) 14.Nd5+/– ed5 15.Bd5 Rc8 16.Qd3 Bg4 17.Bc6 Rc6 18.Ne5 Qc8? (better is 18...Rb6!?+/–) 19.Qe4 (better is 19.Nc6 Qc6 20.d5+–) 19...Bf5?? (19...Rc2 20.Ng4 Rb2 21.Nh6 gh6 22.Qe7 Qd8+–) 20.Nc6 Be4 (20...Ba3 21.Qf4 Bd6 22.Qd6 Qc6 23.Qc6 bc6 24.Ra6+–) 21.Ne7 Kh7 22.Nc8 Rc8 23.Rac1 Rc1 24.Rc1 g5 25.Rc7 Kg6 26.f3 Bc6 27.e4 f5 1–0. mikebaldini (1625) – oz_bear (1665), gameknot.com, 2015.

5.f4 Nbd7 6.Nf3 Be7 7.d3 0–0 8.h4 Nh5 9.g4 Ng3–/+ 10.Rh3 Nf1 11.Kf1 Bf6 12.c3 g6 13.g5 Bg7 14.h5 e5 15.Rh4 ef4 16.ef4 Nb6 17.Ra2 Re8–/+ 18.Ba1 Bf5 19.h6 Bh8 20.d4 Nc4–+ 21.Kg1 Qd7 22.Nbd2 Nd6 23.Ne5 Be5 24.de5=+ Ne4 25.Ne4 Be4 26.c4 c6 27.Qd4 Re6 28.Rd2= Rd8 29.Rhh2 Qc7 30.Rhe2 Bf5 31.Re1 Bg4 32.Rc1+= Qd7? 33.Kh2 Bf5?? 34.Kg3?? Qe7? 35.Qb6 Be4= 36.Re1 Bf5 37.Red1 Be4 38.Qe3 Bf5 39.cd5+/– cd5 40.Rd5 Rd5 41.Rd5 Rc6 42.Qd4+– Rc8 43.e6! f6 44.gf6 Qe6 45.f7! Qf7 46.Qh8# 1–0. Ben Zur,Raanan – Curry,Betty, Labor Day Festival op, 1993.

5.f4 Ne4 6.Nf3 Nd7 7.c4 c6 8.Be2 Nb6 (8...dc4!? 9.Bc4 b5=) 9.c5 Nc4 10.Bd4 b6 11.d3 bc5 12.bc5 (12.dc4?! cd4 13.Qd4 a5 14.cd5 ed5=) 12...Nc5? (better is 12...Qa5!? 13.Kf1 Ne3 14.Be3 Nc5+/–) 13.dc4+– Ne4 14.0–0 c5 15.Bb2 Rb8 16.Qc2 Bb7 17.Nbd2 Nd2 18.Qd2 f6 19.Qc2 Be7 20.Qa4 (20.Bd3 g6+–) 20...Kf7 21.Bc3 Qc7 22.Ba5 Qc6 23.Qc6 (23.Qc2 d4+–) 23...Bc6 24.Rab1 dc4 25.Bc4 Bb5 26.Bb5 (26.Nd2 Bd8 27.Bc3 Bc7+–) 26...Rb5 27.Rb5 ab5 28.Rb1 Rb8 29.Bc3 b4 30.ab4 cb4 31.Bd4 h6 32.Nd2 g5 33.Nb3 g4 34.Rc1 Bd6 35.Kf2 e5 36.fe5 fe5 37.Bc5 Bc5 38.Rc5 Kf6 39.Rc4 h5 40.Ke2 Kf5 41.e4 Kf4? (41...Kg5 42.Rc5 Kf6 43.Rc6 Kg5 44.Re6+–) 42.g3 (42.Nc5 g3 43.Ne6 Kg4 44.h3 Kh4+–) 42...Kg5 43.Rc5 Kf6 44.Kd3 Rb6 45.Kc4 1–0. thenash – Mr.Oldenslo, ChessWorld.net, 2012.

5.g3 Be7 6.Bh3 0–0 7.Nf3 Nc6 8.0–0 h6 9.d4 Nh7 10.Qd3 (10.Bg2 b5=) 10...Ng5 (better is 10...e5 11.Bc8 e4+=) 11.Nbd2?? (better is 11.Ng5 Bg5 12.c4+=) 11...Nh3–+ 12.Kg2 Ng5 13.c4 Nf3 14.Nf3 dc4 15.Qc4 Qd7 16.Rad1 Bf6 (16...b5!? 17.Qc3 f6 18.e4–+) 17.Ne5 Be5 18.de5 Qe7 19.f4 Bd7 20.h4 Nb8 21.Qc7 (21.Qc5 Bc6 22.Kg1–+) 21...Bc6 22.Kh3 (22.Qc6 Nc6 23.Bd4–+) 22...Qc7 23.Rd4 Nd7 24.f5 ef5 25.Rf5 Ne5 26.Rdf4 Nd3 27.Bd4 Nf4 28.Rf4 Rad8 (better is 28...Qd7 29.Kh2 Qd5–+) 29.Bc5 Rfe8 30.h5 Rd5 31.Kg4 Rc5! 32.bc5 Re4 33.Kf3 Rf4 34.Ke2 Ra4 35.g4 Ra3 36.Kd2 Qa5 37.Ke2 Ra2 38.Kd3 Qb5 39.Kd4 Ra4 40.Ke5 Re4 41.Kf5 0–1. Willi_weizenkeim – Kryte, playchess.de, 2002.

5.Nc3 Bd6

6.Be2 0–0 7.Nf3 e5 8.0–0 Nbd7 9.b5 Qe7 10.a4 c5 11.d4 =+.

6.Be2 0–0 7.Nf3 e5 8.0–0 Re8 9.Re1 Nc6 10.d3 b5=+ 11.Qd2 =+.

6.Be2 Nbd7 7.f4 b6 8.Nf3 0–0 9.0–0 c5 10.bc5 Nc5= 11.Qe1 =.

6.Be2 e5 7.Nf3 0–0 8.0–0 Re8 9.d3 Nbd7 10.Nh4 d4 11.Na2 =+.

6.Nf3 0–0 7.Be2 e5 8.0–0 Nbd7 9.b5 Qe7 10.a4 c5 11.bc6 =+.

6.Nf3 0–0 7.Be2 e5 8.0–0 Re8 9.d3 Nbd7 10.Qd2 b6 11.Rfb1 =+.

6.Nf3 0–0 7.Be2 e5 8.0–0 Re8 9.Re1 Nc6 10.d3 Bd7=+ 11.Qd2 =+.

6.Nf3 0–0 7.Be2 e5 8.0–0 Re8 9.Re1 Nbd7 10.b5 ab5 11.Nb5 –/+.

6.Nf3 e5 7.Be2 0–0 8.0–0 Nc6 9.b5 ab5 10.Nb5 Bg4 11.Rb1 =+.

6.Nf3 e5 7.Be2 Bf5 8.0–0 0–0 9.d3 Nc6 10.Nd5 Nd5= 11.e4 =.

5.Nc3 e5

6.Nf3 Qd6 7.Be2 Nbd7 8.0–0 Be7 9.Ng5 h6 10.Nf3 0–0=+ 11.Nh4 =+.

6.Nf3 Bd6 7.Be2 0–0 8.0–0 Nbd7 9.Re1 b5 10.Nh4 Nb6 11.Nf3 =+.

6.Nf3 Bd6 7.Be2 0–0 8.0–0 Bf5 9.d3 Nc6 10.Re1 Re8 11.Nd5 =.

6.Nf3 Bd6 7.Be2 0–0 8.0–0 Bf5 9.d3 Nbd7 10.Re1 Re8= 11.Qd2 =.

6.Nf3 Bd6 7.Be2 0–0 8.d3 Nbd7 9.0–0 b6 10.Nh4 Nb8 11.Nf3 =+.

5.c4 dc4

6.Bc4 c5 7.bc5 Bc5 8.d4 =.

6.Bc4 c5 7.bc5= Bc5 8.Nf3 b5 9.d4 Bd6 10.Bd3 =.

6.Bc4 c5 7.bc5= Bc5 8.Nf3 Nc6 9.d4 (9.Qc2 Bd6=) 9...Be7 (9...Bd6 10.Qc2=) 10.Nbd2 (10.0–0 b5 11.Bd3 0–0=) 10...b5 11.Bd3 Bb7 12.0–0 0–0 13.Qe2 b4 (13...Qd5 14.e4 Qh5 15.Rfc1=) 14.Rfc1+= ba3 (14...Qd5 15.e4 Qd8 16.Nb3+=) 15.Ba3 Nb4 (15...Ba3 16.Ra3 Nb4 17.Rb1+=) 16.Bb4+/– Bb4 17.Ba6 Ba6 18.Ra6 Ra6 (18...Qd5 19.Rac6+/–) 19.Qa6 Bd2 20.Nd2 e5 21.Nf3 ed4 22.Nd4 Qa8 23.Qc4 Qd5 24.Qc7 h6 25.h3 Ra8 26.Rb1 Ne4 27.Qf4 Ng5 28.Qg4 Qe4 29.Qe4 Ne4 30.f3 Nc3 31.Rb3 Nd5 32.Kf2 g6 33.g4 Ra2 34.Ne2 f5 35.Rd3 Nb4 36.Rb3 Nd5 37.Rd3 Nb4 38.Rd4 Rb2 39.Rd6 Kf7 40.f4 Ke7 41.Rd1 Ke6 42.Ra1 Nc2 43.Ra5 Kf6 44.Rc5 Nb4 45.Kf3 Nc2 46.Rc3 Ne1 47.Kf2 Ng2 48.Rc7 g5 49.Rc6+– Kf7 50.Kg2 Re2 51.Kf3 Rh2 52.Rh6 fg4 53.Kg4 gf4 54.Kf4 Rf2 55.Kg3 Rf1 56.Kg2 Rf5 57.Rh4 Ra5 58.Rf4 Ke6 59.Kf3 Ra1 60.Rb4 Rf1 61.Ke2 Rh1 62.h4 Ke5 63.Kf3 Rh3 64.Kf2 Kf5 65.Ra4 Ke5 66.Rf4 Kd5 67.e4 Ke5 68.Rg4 Ra3 69.Rg3 Ra1 70.Kf3 Rf1 71.Kg4 Ke4 72.Kg5 (72.h5!? Ke5 73.Kg5 Rf8 74.Re3 Kd4+–). McShane,Luke (2525) – Lalic,Bogdan (2520), Rilton Cup Stockholm, 2002.

6.Bc4 Nc6 7.d4 b5 8.Ba2 (8.Bd3 Bd6=) 8...Bd6 9.Nd2 (9.e4 e5=) 9...0–0 10.f4 (10.Qc2 Bb7 11.Ngf3 a5=+) 10...Bb7 (10...a5 11.ba5 Ra5 12.Bb1=+) 11.Ngf3 a5 12.e4? (better is 12.ba5!? Ra5 13.Qe2=+) 12...Bf4–+ 13.g3 (13.e5 Nd5 14.Qe2 ab4 15.Qb5 ba3 16.Qb7 Bd2 17.Kd2–+) 13...Bd2 14.Qd2 Ne4 15.Qd3 ab4 16.Bb1? ba3 17.Qe4 ab2?? 18.Qh7 –+. bentengutama (1955) – minn (1755), net–chess.com, 2003.

6.Bc4 Bd6 7.d4 =+.

6.Bc4 Bd6 7.Nf3 Nc6 8.0–0 Bd7 9.Nc3 0–0 10.Rc1 b5 (10...e5 11.d4=) 11.Ba2 (11.Bd3 Rc8+=) 11...e5 (11...a5 12.Nb5 ab4 13.a4=) 12.Nd5 (better is 12.d4=) 12...Na7 (better is 12...a5 13.Nf6 Qf6=) 13.Ne5+/– Be5 (13...Be6!? 14.Nf6 Qf6 15.Be6 Qe6+/–) 14.Be5+– Nd5 15.Bd5 Rc8? (15...c6 16.Bb3+–) 16.Qf3 (16.Bb7!? Qg5 17.Bc8 Rc8 18.Rc7 Bc6+–) 16...c6 17.Be4 (17.Qg3 g6 18.Bf3 Be6+–) 17...f5 18.Qg3 Rf7 19.Bb1 Qe7 20.Bd4 Re8?? 21.Ba7 Qe5 22.Qe5 Re5 23.Bd4 Re8 24.Ba2 Be6 25.Be6 Re6 26.Rc5 Rd6 27.Rfc1 f4 28.Rc6 Rfd7 29.Rd6 Rd6 30.Rc8 Kf7 31.Rc7 Kg6 32.Rg7 Kh6 33.Ra7 Kg6 34.Kf1 fe3 35.de3 h6 36.Ke2 Kf5 37.Rf7 Kg6 38.Rf6! Rf6 39.Bf6 Kf6 40.Kd3 Ke5 41.f4 Kf5 42.h3 h5 43.g4! hg4 44.hg4 Kg4 45.Ke4 (45...Kh4 46.f5+–) 1–0. thedesertfox (1940) – condour (1785), net–chess.com, 2004.

6.Bc4 Bd6 7.Nf3 h6 8.0–0 0–0 (8...b5 9.Be2=) 9.Qc2 Nbd7 10.Nc3 e5 (10...b5 11.Be2+=) 11.Ne4 (11.d4 ed4 12.Nd4 Ne5+=) 11...Ne4 12.Qe4 Pawn e5, live or die! 12...c6 (12...Nf6 13.Qh4 b5 14.Bb3=) 13.Bd3 (better is 13.Ne5!? Be5 14.Be5 Ne5 15.Qe5 Qd2 16.Rfd1+/–) 13...Nf6= 14.Qc4 Be6 (14...Re8 15.e4+=) 15.Qc2= Bd5 (better is 15...Qc7!?=) 16.Ne5 Re8 (16...Bg2 17.Nf7 (worse is 17.Kg2 Be5 18.Bc4 Bb2 19.Qb2 Ng4+=) 17...Qd7 18.Bf6 Qf7 19.Kg2 Qf6 20.f4+=) 17.Nc4 b5 (17...Bc7 18.f4+/–) 18.Nd6 Qd6 19.Bf6 (19.Rfc1 Ng4 20.f4 Qe7 21.Bh7 Kh8+/–) 19...Qf6 20.Bh7 Kh8 21.Bf5 Re5 (21...Qe7 22.Rfb1+/–) 22.Bg4 (22.e4 Rae8 23.d3 Rf5 24.ef5 Qf5+/–) 22...Be4 (22...Rae8 23.Qc1+=) 23.Qc3 Rd8 24.d4 Rg5 (24...Ree8 25.a4+/–) 25.f3+– Bf5 26.Bf5 Qf5 (26...Rf5 27.Rac1+–) 27.Qc6 Qh3 (27...Rg6 28.Qe4 Qg5 29.f4+–) 28.Rf2 Rg6?? (28...Qf5 29.Qa6 Qd3 30.Re1+–) 29.Qc7 (better is 29.Qg6! Qh2 30.Kh2 fg6 31.Rc1+–) 29...Rc8 (29...Rd7 30.Qc8 Kh7 31.e4+–) 30.Qf7 Qh5 31.Qd7 Rf8 (31...Rcc6 32.e4+–) 32.Rc1 Rf3 (32...Rgf6+–) 33.Qe8 (better is 33.Rf3 Kh7 34.Qf7 Qg4+–) 33...Kh7 34.Qe4 (better is 34.Rc8 Rg2 35.Rg2 Qe8 36.Re8+–) 34...Rf2 (34...Rh3 35.Rf7 Qg4 36.Qg4 Rg4 37.g3+–) 35.Kf2 Kg8 (35...Qh2 36.Rc6 Qg3 37.Kf1+–) 36.Rc5 (better is 36.Rc8 Kh7 37.Rc6 Qg4 38.Qg6 Qg6 39.Rg6 Kg6+–) 36...Qg4 (36...Rf6 37.Ke1 Qg6 38.Qg6 Rg6 39.Kf2+–) 37.Qg4 Rg4 38.Kf3 (38.Rc6 Rg5+–) 38...Rg6 39.g4 (39.d5 Rf6 40.Ke2 Kf8+–) 39...Rf6 40.Ke2 Kh7 (40...Rg6 41.h3+–) 41.h3 (41.d5 Rf8+–) 41...g5 (41...Rd6 42.d5+–) 42.Rf5 (42.d5 Rf7+–) 42...Re6 43.d5 Rd6 44.e4 Kg6 (44...a5 45.Rf7 Kg6 46.Rb7 ab4 47.ab4+–) 45.Kd3 h5 (45...Rd8 46.Kd4+–) 46.Kd4 hg4 47.hg4 Rd8 48.e5 Rc8 (48...Rh8+–) 49.d6 Rc4 50.Kd5 Rg4 51.Rf6 Kg7 52.d7 Rf4 53.d8Q 1–0. Goldmund,Heike – Stoyanov,Zdravko, FICGS, 2015.

6.Bc4 Bd7 7.Nf3 c5 8.bc5 Bc5 9.0–0 Nc6 10.Qc2 Be7 11.h3 (11.d4!?=) 11...Rc8 12.Nc3 Na5 (12...Nd4 13.Nd4 Rc4 14.d3+=) 13.Be2= 0–0 14.Ne5 Nd5 (14...Nc6 15.Nd7 Qd7 16.Rac1=) 15.Nd7 (15.Qe4 Nc3 16.Bc3 Bc6 17.Nc6 Nc6+= (worse is 17...Rc6 18.Qe5 Bf6 19.Qa5+–)) 15...Qd7 16.Qd3 Rfd8 17.Nd5 Qd5 (17...ed5 18.Bg4 f5 19.Bf5+–) 18.Qd5 Rd5 19.Bc3 Nc4 20.Bc4 Rc4 21.Rfb1 (21.Rfc1 Rd3+=) 21...b5–/+ 22.Kf1 Ra4 23.Rb3 Rd7 (23...Rd3 24.Ke2 Rd7 25.d3=) 24.Ke2= Rb7 25.Kd3 (25.d3 Rc7=) 25...Rc4+= 26.f4 (26.Rc1 Rd7 27.Ke2 Ra4+=) 26...Rd7 27.Ke2 Bf6 (27...Rdc7 28.Rc1+=) 28.a4 (28.Bf6 gf6 29.d4 Rc2 30.Kf3 Rc4=) 28...ba4+= 29.Rb6 (29.Rba3+=) 29...h6 (29...Be7!?+=) 30.Bf6 (30.Ra6 Bc3 31.dc3 Rc3 32.R1a4 Kf8=) 30...gf6 31.Ra6 Attacking the isolated pawn on a4 31...Rc2 32.Rd1 Ra2 33.g4 Kg7 34.Kf3 Rd3 35.Ra7 f5 36.gf5 ef5 37.Rg1 Kf6 38.Ra6 Ke7 39.Rc1 (39.Ra7 Ke6 40.Ra6 Kd5=) 39...Rdd2+= (39...Rad2 40.Rc7 Kd8 41.Rf7+/–) 40.Rc7 Rd7 (40...Kf8 41.Rf6 Rf2 42.Kg3=) 41.Rc5 Rd6 42.Ra7 Ke6 43.Rcc7 (43.Rca5 Rh2+=) 43...f6 44.Rc5 (44.Rc4 Rh2 45.Kg3 Re2=) 44...a3 (44...Ra1 45.Rca5 Rd7 46.R7a6 Rd6 47.Ra8=) 45.Raa5 The isolani on f5 becomes a target (45.Rc3 Rd1=) 45...Rh2 (45...Ra1 46.Rf5 a2–+) 46.Kg3= White fights for the Initiative 46...Rdd2 Black intends a2 47.Ra6 Kd7 48.Rf5 a2 (48...Rdg2 49.Kh4 a2 50.Rff6+/–) 49.Rff6 Rh1 (better is 49...Rhe2!? 50.Ra7 Ke8 51.Re6 Kf8+=) 50.Rf7 Ke8 51.Rfa7 Rg1 (51...Re1 52.Kf3 Rh2 53.Kg4+/–) 52.Kf3 Rh1 (52...Ra1 53.Re6 Kf8 54.Rf6 Ke8 55.Ke4+–) 53.Kg4 (better is 53.Ra2 Ra2 54.Ra2 Rh3 55.Ke4+/–) 53...Rb2? (better is 53...Rg2 54.Kh4 Rgh2+=) 54.Re6 (54.Rh6 Rg1 55.Kh4 Rbg2 56.Rh8 Rg8 57.Rg8 Rg8 58.Ra2 Rh8 59.Kg4 Rg8 60.Kf3 Rg1+–) 54...Kd8 (54...Kf8 55.Rc6 Rg1 56.Kh5+–) 55.Rf6 (55.Rh6 Rg1 56.Kh4 Rb7 57.Ra8 Kd7 58.Ra2 Rgb1+–) 55...Ke8 (55...Rg1 56.Kf3 Rf1 57.Ke4 Ke8 58.Re6 Kf8+–) 56.Rc6?? (56.Rh6!? Rg1 57.Kh4 Rg8+–) 56...Rd2? (better is 56...Rd1+/–) 57.Rca6?? (57.Rc8 Rd8 58.Rd8 Kd8 59.Ra2 Re1+–) 57...Rd3?? (better is 57...Rb2=) 58.e4 (58.Re6!? Kd8 59.Ra2 Rg1 60.Kf3 h5+–) 58...h5 59.Kf5 (59.Kh5?! Rdh3 60.Kg4 Rh4 61.Kf3 R4h3 62.Ke2 R1h2 63.Kd1 Rd3 64.Kc1 Rc3 65.Kd1 Rcc2=) 59...a1Q 60.Ra1 Ra1 61.Ra1 Rh3 62.Ke6 The mate threat is Ra8 62...Kf8 63.f5 Re3 64.e5 h4 (64...Rb3 65.Ra8 Kg7 66.f6 Kg6 67.Rg8 Kh6+–) 65.f6 Kg8 66.f7 Kg7 If Black now would get Rf3 in, he might survive 67.Ra8 Rf3 68.Rg8 Kh7 69.f8Q (69.f8Q Rf8 70.Rf8+–) 1–0. Margraf,A – Schmiederer, Schwabenliga, 1989.

6.Bc4 Nbd7 7.Nf3 b5 8.Be2 Bd6 9.d4 Bb7 10.Nbd2 Ne4 11.0–0 Nd2 12.Qd2 0–0 13.Rac1 Nf6 14.Rfd1 Ne4 15.Qc2 Qe7 16.Ne5 f5 17.f3 Nf6 18.Bd3 Be5 (18...Nd5!? 19.Qf2 f4=) 19.de5+= Nd5 20.Bd4 Rfc8 (20...Qg5!? 21.f4 Qg6+=) 21.e4+/– fe4 22.Be4 h6 23.f4! c6 (23...Nf4 24.Bb7 Pinning (24.Bb7 Deflection)) 24.Rf1 Rf8? (better is 24...a5!?+/–) 25.Bc5+– Qh4 26.Bf8 Ne3? (26...Rf8 27.g3 Qh5 28.Qc5+–) 27.Qf2 (better is 27.Bh7!? Kh8 28.Bg7 Kg7 29.Qg6 Kh8+–) 27...Qf2 28.Rf2 Kf8 29.Rd2 Ke7 (29...Nd5 30.Bd5 ed5 31.f5+–) 30.Bc6 Bc6 31.Rc6 Nc4 (31...a5+–) 32.Rc7 Kf8 33.Rdd7 1–0. Sobeck,G (2095) – Berger,Falk, Dresden GER, 2013.

6.Bc4 b5

7.Bb3 Bb7 8.Nf3 c5 9.bc5 Bc5 10.d4 =+.

7.Bb3 Bb7 8.Nf3 Nbd7 9.d4 Nb6 10.0–0 Bd6 11.Nbd2 (11.Ne5 0–0+=) 11...0–0 12.Qc2 (12.Ne5+=) 12...Ng4 (12...a5!?=) 13.h3 (13.e4 Bf4+/–) 13...Nf6+= 14.Rfe1 (14.e4 Nh5 15.Rac1+=) 14...Bd5 (better is 14...a5!?+=) 15.e4+/– Bb3 16.Nb3 Be7 (16...Nh5 17.Bc1 Bf4 18.g3 Bc1 19.Rac1+/–) 17.Na5+– Qd7 18.Rac1 Rfc8 19.Qd2 Na4 20.Ba1 h6 (20...Nb6 21.Ne5 Qe8 22.Nec6+–) 21.Ne5 Qe8 22.f3 (22.Nec6!? Nd7+–) 22...Nd7 23.Nd3 Bg5 (23...Ndb6 24.Qf2+/–) 24.f4 Bh4 25.Re2 Nab6 26.Qe3 Bf6 27.Rec2 g5 (27...h5 28.g4+–) 28.Rc7 (28.Rf1 Qf8+–) 28...gf4 (28...Nc4 29.Rc8 (29.Nc4?! Rc7 30.Nd6 Rc1 31.Qc1 Qd8=) 29...Rc8 30.Nc4 Rc4 31.Rf1+–) 29.Qf4 (worse is 29.Nf4 Bg5 30.Rc8 Rc8+–) 29...Bg5 (29...Qf8 30.Bb2+–) 30.Qg3 Kh7 (30...Rc7 31.Rc7 (31.Qc7?! Bc1 32.Qc1 Kh7=) 31...Nf6 32.Nc5+–) 31.Rc8 Rc8 32.Rc8 Qc8 33.Nc5 Nc5? 34.dc5 Nc4 35.Nc4 bc4 36.Qc3 f6 37.Qc4 Qd7 38.Bd4 e5 39.Bf2 Qd1 40.Qf1 Qa4 41.Qd3 Qc6 42.h4 Bc1 43.Qc3 Bf4 44.g3 Qe4 45.gf4 Qf4 46.c6 e4 47.c7 Qg4 48.Qg3 Qd1 49.Kh2 Qc1 50.h5 1–0. Feofanov,Alexander – Ledovskih,Viktor, 2008.

7.Bb3 Bb7 8.Nf3 Be7 9.Nc3 Nc6 10.0–0 Bd6 11.Rc1 Ne7 12.Ne2 Bf3=+ 13.gf3 Rc8 14.Kh1 Ng6 15.Rg1 c5 16.bc5 Bc5 17.Bf6 gf6 18.Qc2 Qd6?? 19.d4+– Nh4 20.dc5 Qc7 21.Qe4 Ng6 22.Nd4 Qe5 23.Qe5 Ne5 24.Rc2 Ke7 25.Rgc1 Nd3 26.Rd1 Nc5 27.Rdc1 Kd6 28.a4! Rc7 29.ab5 ab5 30.Nb5 (30...Ke7 31.Rc5 Rc5 32.Rc5+–) 1–0. mgriffin (1705) – dbryant (1705), net–chess.com, 2001.

7.Be2 Bb7 8.Nf3 c5 9.bc5 Bc5 10.d4 Bd6 11.0–0 0–0 12.Nbd2 Nbd7 13.Bd3 Nb6 (13...Rc8 14.Rc1=+) 14.Bc2 (14.Rc1 Bd5=) 14...Rc8 15.e4 Be7 16.Rc1= Nc4 17.Nc4 Rc4 18.Nd2 Rc7 19.f3 Qd7=+ 20.Nb3 Rfc8 21.Qd2 Qd8 22.Bd3= Nd7 23.Rc7 Rc7 24.Rc1 Nb6 25.Na5 Bc8 26.Rc7 Qc7= 27.Qc2 Qd7 28.Nb3 Na4 29.Bc1 g6 30.Kf1 e5 31.g3 Bd6 (31...ed4 32.Nd4 Bc5 33.Nb3=+) ˝–˝. Brenner,Sabine – Mueller,Christian (2085), GER–chT U20 Germany, 1994.

7.Be2 Bb7 8.Nf3 c5 9.bc5 Bc5 10.d4 Be7 11.0–0 0–0 12.Ne5 Nbd7=+ 13.Bf3 Bf3 14.Qf3 Ne5 15.de5 Nd5 16.Rd1 Qb6 17.e4 Nc7 18.Nc3 Rad8 19.Ne2 Rd1 20.Rd1 Rd8 21.Rd8 Bd8 22.Nd4 b4 23.a4 a5 24.Qd3 Na6 25.Nb3 h6 26.h3 Nc5?? 27.Nc5+– Qc5 28.Qd8 (28...Kh7 29.Qd1+–) 1–0. Trkn – guest4727, ICC, 2005.

7.Be2 c5 8.bc5 Bc5 9.Bf3 Ra7 =.

7.Be2 c5 8.bc5 Bc5 9.Nf3 0–0 10.0–0 Nbd7 11.h3 b4 (11...Bb7 12.Nc3+=) 12.ab4 Bb4 13.d3 Bb7 14.Nbd2 a5 15.Ne5 Ne5 16.Be5 Bd2 17.Qd2 Qd5 18.Bf3 Qe5 19.Bb7 Ra7 20.Bf3 a4 21.d4 Qd6 22.Qc3 Nd5 23.Bd5 Qd5 24.Rfc1 g6 25.Qc5 Qd7 26.Qc6 Exerts pressure on the isolated pawn (26.Rc4!?+=) 26...Qc6+= 27.Rc6 Rb8 28.Rc4 (better is 28.Rc3!?+=) 28...a3–/+ 29.Rcc1 a2 30.g4 g5 31.Kg2 Kg7 (31...Rb2!?–/+) 32.Rc2+= Rba8 33.Kg3 Kg6 34.h4 h5 (34...gh4 35.Kh4 f5 36.f3–/+) 35.hg5+= Kg5 36.gh5 Kh5 37.f4 Ra5 (37...Kg6 38.Kf3–/+) 38.Kf3 (38.d5!?=) 38...Kg6+= 39.Ke4 Kf6 40.Kd3 Kf5 41.Rc5 Kg4 42.Ra5 (better is 42.Ke2+=) 42...Ra5–+ 43.Ke2 Kg3 44.Rg1 Kh2 45.Ra1 Kg2 46.Ke1 (better is 46.f5!? Rf5 47.e4–+) 46...Kf3 47.Kd2 Ra3 48.Rf1 (48.f5–+) 48...Ke4 49.Ra1 f5 (49...Re3?! 50.Ra2 Rd3 51.Ke1 Rd4 52.Rh2–+) 50.Kc2 Re3 51.d5 (51.Kb2 Re2 52.Kc3 Kf4–+) 51...Kd5 52.Kd2 (52.Rd1 Ke4–+) 52...Ra3 53.Kc2 Ke4 54.Kb2 Ra6 55.Re1 Kf4 56.Ka1 e5 57.Rf1 Ke4 0–1. Hal1958 – Flavio, playchess.de, 2005.

7.Be2 c5 8.Bf3 Ra7 9.a4 ba4 10.bc5 Bc5 11.Ne2 0–0 12.0–0 Bb7=+ 13.Ra4 Bf3–/+ 14.gf3 Nbd7 (14...Qd3 15.Bf6 Qg6 16.Ng3 Qf6 17.Nc3–/+) ˝–˝. Bulcourf,Carlos – Devcic,Marcos, Buenos Aires, 1992.

7.Qf3 Nd5 8.Be2 Bb7 =.

5.c4 c5

6.Qb3 dc4 7.Qc4 b5 8.Qh4 Be7 (8...cb4!? 9.ab4 Bb7–/+) 9.bc5= 0–0 (9...Bc5 10.Bf6 gf6 11.d4 Qa5 12.Nd2=) 10.d4+= Bb7 11.Nd2 (11.Nf3 Nbd7+=) 11...Ne4= 12.Qh3 Nd2 13.Kd2 Nd7 (13...e5!?=) 14.Bd3+= g6 15.Nf3 Bf3 16.Qf3 Nf6 (16...Bc5!? 17.dc5 Nc5+/–) 17.Ke2 Qd5 (17...Qc7!?+–) 18.Qd5 Nd5 19.g3 Rfc8 20.e4 Nf6 21.f3 Ne8 22.Bc3 (22.h4 e5 23.Rhc1 ed4 24.Bd4 Rc6+–) 22...Kf8 (22...e5 23.d5 Bc5 24.Be5+–) 23.Rhb1 (23.a4 Nc7+–) 23...Bf6 (23...e5 24.a4 ba4 25.Rc1+–) 24.a4 (24.e5 Be7+–) 24...ba4 (24...b4 25.Rb4 Rc5 26.Bb2+–) 25.Ra4 Nc7 26.Rba1 Rcb8 (26...Ra7 27.Bc4+– (27.Ba6?! Rca8+=)) 27.Ba6 Rb3 28.Kd3 (28.Kd2 Rd8 29.Bd3 Ke8+–) 28...Na6 (28...Rd8 29.Kc4 Rc3 30.Kc3 Na6 31.e5 Be5 32.de5 (32.Ra6?! Bd4 33.Kc4 Ba1 34.Ra1 Rd2+=) 32...Nc5 33.Ra8+–) 29.Ra6 Rab8 30.Ra8 Kg7 31.Rb8 Rb8 32.Kc4 h5 33.Ra6 g5 34.Rb6 Rd8 35.Rd6 White prepares the advance d5 35...Rb8 36.Rb6 Rd8 37.c6 Rc8 38.d5 Bc3 39.Kc3 ed5 40.ed5 Kf8 41.Rb7 Ke8 42.Kd4 f6 43.Kc5 f5 44.d6 Kd8 45.Rh7 1–0. Sparpaket – Hal1958, playchess.de, 2005.

6.b5 ab5 7.cb5 c4 8.d3 Qa5 9.Nc3 (9.Nd2 cd3 10.Bd3 Nbd7=) 9...cd3 10.Bd3 Nbd7 (10...e5 11.Nge2=) 11.Nf3 Nc5 (11...Bd6 12.0–0=) 12.0–0 Be7 (12...Nfe4 13.Be4 Ne4 14.Qd3=) 13.Qc2 (13.Bc2 0–0=) 13...Bd7 (13...Nd3 14.Qd3 0–0 15.a4=) 14.Nd2 (14.Be2 0–0=) 14...Qb6 (14...Nd3 15.Qd3 0–0 16.Rfe1=+) 15.Nb3 (15.Rfc1 Nd3 16.Qd3 0–0=) 15...Nd3 16.Qd3 0–0 (16...Qc7 17.Nd4=+) 17.Qd4 (17.a4 Rfc8=) 17...Qd4=+ 18.ed4 (18.Nd4 Rfc8=+) 18...Rfc8–/+ 19.Rfc1 Ne4 (19...Bd6 20.a4–/+) 20.a4 (20.Ne4 de4 21.a4 b6=) 20...Nc3 (20...Bg5 21.Ne4 Bc1 (21...de4?! 22.Rc8 Bc8 23.Bc1=) 22.Rc1 Rc1 23.Bc1 de4–+) 21.Rc3=+ Rc3 22.Bc3 Rc8 23.Bd2 Rc2 24.g3 Bd6 25.Be3=+ Bb4 26.Rc1 Rc1 27.Bc1= b6 28.Bf4+/– Kf8 29.Bc7+– Ke7 30.Bb6 Kd6 31.Bc5 Bc5 32.Nc5 Bc8 33.f4 f6 34.Nd3 Kc7 35.a5 Kb7 36.Kf2 Kc7 37.Ke3 Kb7 38.b6 Kc6 39.Nc5 h6 40.h4 g5 41.hg5 hg5 42.fg5 fg5 43.b7 Bb7 44.Nb7 Kb7 45.Kf3 Ka6 46.Kg4 Ka5 47.Kg5 Kb4?? 48.Kf4 Kc4 49.Ke5 Kc3 50.g4 Kc4 51.g5 Kc3 52.g6 (52...Kc4 53.g7+–) 1–0. Kuipers,Stefan – Kleijn,Christov, Hengelo U12 open, 2002.

6.bc5 Bc5 7.d4 Qb6 +=.

6.bc5 Bc5 7.Nf3 0–0 8.Be2 (8.cd5 Nd5 9.Qc2 Bd6=) 8...Nc6 9.d4 Be7 10.Nbd2 h6 (10...dc4 11.Bc4 b5 12.Bd3=) 11.0–0 Bd7 12.Qb1 Rc8 13.Rc1 Na7 14.a4 Nc6 15.Bc3 Rb8 16.Qb2 a5 (better is 16...dc4 17.a5 b5 18.ab6 Rb6+=) 17.e4 (better is 17.Ne5!?+=) 17...de4 18.Ne1 Nb4 19.Nc2 Nc2 20.Qc2 Bc6 21.g3 (21.c5!?+=) 21...b6–/+ 22.Bf1 Qc7 23.Bg2 Qb7 24.Nf1 Nd7 (24...Qd7 25.Ne3–/+) 25.Rcb1 (25.Ne3 Rfc8+=) 25...Qa8 (25...Qc7 26.Re1–/+) 26.Bd2 (26.Ne3 Nf6+=) 26...f5 27.Bf4 Rbc8 28.h4 (28.Qe2 Bf6 29.Be3 Qa6–/+) 28...Bf6 29.Be3 (29.Qb2 Nc5!–/+) 29...Bb7 (29...Bd5!? 30.Nd2 e5 31.Qc3–+) 30.Qb3–/+ Rfe8 (30...Ba6 31.Rc1–/+) 31.Ra2 Kh7 32.Rd2 Qa6 33.Rc2 g5 34.hg5 hg5 35.Nd2 Kg7 36.g4 (36.g4 f4 37.Be4–+). Krivoshapko,Alexander – Ratushny,Grigory, Final Omsk, 2010.

6.bc5 Bc5 7.Nf3 Nc6 8.cd5 ed5 9.Be2 0–0 10.0–0 Ne4 (10...Bf5 11.Bf6 Qf6 12.d4=) 11.Nc3 (11.d3 Ng5 12.Nbd2=) 11...Ne7 (11...Nc3 12.Bc3 d4 13.ed4 Nd4 14.Re1=) 12.h3 (12.Qc2 Nf6+=) 12...Nf5 (12...Nc3 13.Bc3 b5 14.Qb3=) 13.d4 Ba7 (13...Nc3 14.Bc3 Bd6 15.Qb3=) 14.Nd2 (14.Bd3!?+=) 14...Nd2 15.Qd2 Qg5 16.f4 (worse is 16.Nd5 Nh4 17.Nf4 Bh3–/+) 16...Qd8 17.Bf3 The isolani on d5 becomes a target 17...Be6 18.Rfe1 Rc8 19.Rac1 (19.Qf2 Nh4=) 19...Re8 20.Qd1 (20.g4 Nh4 21.Bh1 f5=) 20...Ng3 (20...b5 21.g4 Nh4 22.Na2 Rc1 23.Nc1 Nf3 24.Qf3–/+) 21.Qb3 The pressure on the isolated pawn grows 21...Qd6 (better is 21...Rc6=) 22.Bd5?? (22.Nd5 Rc1 23.Rc1 Bd5 24.Bd5 Ne2 25.Kh2 Nc1 26.Qb7 Rf8 27.Bc1 a5+/–) 22...Bd5?? (better is 22...Rc3 23.Qc3 Qd5–+) 23.Qd5= Qb6 (better is 23...Qd5!? 24.Nd5 Rc1 25.Bc1 Bd4=) 24.Rb1 h6 (24...Qc7 25.Ba1 b5 26.a4+–) 25.Qf3 (better is 25.Ba1!? Qg6 26.Qb7+–) 25...Nf5+= 26.Re2?? (better is 26.Ba1 Qc6 27.Nd5+= (worse is 27.Rb7 Qf3 28.gf3 Bd4+=)) 26...Rc7?? (better is 26...Rc3 27.Bc3 Qb1 28.Kf2 Nd6–+) 27.Nd5+– Qd6 28.Nc7 Qc7 29.Bc1 (29.Rd1 Qc4+–) 29...b5 30.Bb2 Bb8 (30...Qc4 31.Rd1+–) 31.Rc1 Qe7 32.d5 Ba7 33.Rce1 (33.Kh2 Be3 34.Rce1 Qd6 35.Re3 Re3 36.Re3 Ne3 37.Qe3 Qd5+–) 33...Nh4 (33...Qc5 34.Kh2 Re3 35.Re3 Ne3 36.d6 Qd6 37.Bc1 (37.Re3?! Be3 38.Qe3 f6+–) 37...Ng2 38.Re8 (38.Kg2?! Qg6 39.Kh1 Bd4+–) 38...Kh7 39.Qe4 (worse is 39.Qg2 Bd4+–; 39.Kg2?! Qg6 40.Kf1 Qg1 41.Ke2 Qc1+=) 39...Qg6 40.Qg6 Kg6 41.Kg2+–) 34.Qg3 (34.Qg4 Ng6+–) 34...Ng6 (34...Nf5 35.Qg4 Qe4 36.Rd1+–) 35.Kh1 (35.f5 Bb8 36.Qf2 Ne5+–) 35...Qe4 36.Qf3 Qf5 (36...Qd3+–) 37.g4?? (better is 37.d6 Rd8 38.e4+–) 37...Qd3+/– 38.f5 (better is 38.Qg3+/–) 38...Ne7? (38...Nh4 39.Qf4 Qd5 40.e4 Qb3=) 39.f6+– Nd5 40.fg7 Ne3?! (40...Bb6+–) 41.Bc1 Kg7 42.Be3 (42.Re3?! Be3 43.Re3 Re3 44.Qe3 Qe3 45.Be3 Kg6+–) 42...Qa3 (42...Re3 43.Re3 Be3 44.Re3 Qd6+–) 43.Bh6! Kh6 (43...Kh6 44.Qf6 Mate attack) 44.Qa3 (44.Qf6 Kh7 45.Qf7 Kh6 46.Re6 Re6 47.Re6 Kg5 48.Qf6) 44...Re2+– 45.Re2 1–0. zabazaba (1660) – manyoza10 (1690), gameknot.com, 2014.

6.Nf3 cb4 7.Be5 =+.

6.Nf3 Nc6 7.b5 ab5 8.cb5 Na5 9.d3 Bd7 10.a4 Bd6 11.Be2 0–0 12.0–0 b6 13.d4 c4 14.Nc3 Nb7 (14...Qe7 15.Ne5=+) 15.Ne5 (15...Qe7 16.Rc1=). Whiterose – BCC, ChessWorld.net, 2005.

5.c4 c6

6.c5 b6 7.d4 bc5 8.dc5 a5 9.Nd2 Ba6 10.Be2 Be2 11.Ne2 Na6 (11...ab4 12.ab4 Ra1 13.Qa1+=) 12.Bc3 Be7 13.0–0 0–0 14.Nd4 Qc7 15.N2b3 Ne4 16.Be1 ab4 17.ab4 Qb7 (better is 17...e5!? 18.Nf5 Rfb8=) 18.f3+/– Nf6 19.Na5 Qc8 20.Nac6 Re8 21.Ne7 Re7 22.c6 (better is 22.Bc3+/–) 22...e5= 23.Nf5 (better is 23.Nc2 Qc6 24.Bh4=) 23...Re6?? (better is 23...Qf5 24.b5 Nc7+=) 24.b5+– Nc7 25.Ra8 Qa8 26.b6 Qc6 (better is 26...g6 27.Nh6 Kg7+–) 27.bc7 Qc7 28.Bd2 Qd7 Black intends d4 29.Qb3 g6 30.Ng3 d4 31.ed4 ed4 32.Bg5 d3 (32...Qc7 33.Bf6 Rf6 34.Qd3+–) 33.Bf6 Rf6 34.Qb8 Kg7 35.Qb2 (35.Qb2 Qd8 36.Rd1+–) 1–0. Hal1958 – Dynamike, playchess.de, 2005.

6.d4 g6 7.Nf3 Bg7 8.Nc3 0–0 9.Be2 b5 10.c5 a5 11.0–0 ab4 12.ab4 Ra1 13.Qa1 Na6 14.Na2 Ne4 15.Bc3 Nc3 16.Qc3 f6 17.Ra1 Qc7 18.Nc1 e5 19.Nb3 e4 20.Ne1 f5 21.Na5 g5 22.g3 f4 23.Nc2 f3 24.Bf1 h5 25.Na3 h4 26.Nc6 Qc6 27.Nb5 hg3 28.hg3 Rf6 29.Na7 Qb7 30.Nc8 Qc8 31.b5 Nb8 32.Ra8 Kf7 33.Qb3 Rh6?? 34.Qd5+– Kf6 35.Qe4 g4 36.Qf4 1–0. Loulou – Tofik, HCL–B1759 playchess.de, 2003.

6.cd5 cd5 7.Nf3 Be7 8.d3 Nc6 9.Be2 a5 10.b5 Na7 11.d4 Bd7 12.Nc3 Rb8 13.0–0 Qb6 b5 becomes the focus of attention 14.a4 Rc8 15.Qb3 Bb4 16.Rac1 0–0 17.Rc2 Rc7 18.Ne5 Rfc8 19.Rfc1 Ne4?? (better is 19...Be8+/–) 20.Ne4+– Rc2 21.Rc2 Rc2 (21...Bb5 22.ab5 (worse is 22.Bb5 de4 23.Rc8 Nc8+–) 22...de4 23.Bh5+–) 22.Qc2 (22.Nd7?! Re2 23.Qd1 Qd8 24.Qe2 Qd7=) 22...Bb5 (22...Be8 23.Nc5+–) 23.Bb5 (better is 23.Ng5 Be8 24.Qh7 Kf8 25.Bh5+–) 23...Nb5 (23...de4 24.Be8 f5+–) 24.ab5 (better is 24.Qc8 Bf8 25.Nd7 Qc5 26.dc5 h6 27.Qf8 Kh7 28.Qg7) 24...Qb5 25.Nc5 (25.Ng5 g6 26.Qc7 Qe8 27.Nef7 Qf8+–) 25...b6 26.Nb3 f6 27.Qc8 Bf8 28.Qe6 Kh8 29.Nf7 Kg8 30.Nh6 Kh8 31.Qg8 1–0. Fournier,Frederic – celsobritto (1610), Active, 2007.

6.Nf3 b5 7.d3 Be7 8.Be2 Nbd7 9.0–0 0–0 10.Nbd2 a5 11.ba5 Qa5 12.c5 (12.cb5 cb5 13.Qb3 e5=) 12...Bc5 13.Nd4 (13.Nb3!? Qa4 14.Nc5 Nc5 15.Qa4 Na4 16.Be5=+) 13...Bd4 14.ed4 Qd8 15.Nb3 e5 (better is 15...Qc7–/+) 16.de5+/– Ne8 17.f4 Nb6 18.Nc5 d4 (18...Na4 19.Na4 Ra4 20.Qc2 Qb6 21.d4+=) 19.Bg4 (19.Bf3!? Nd5 20.Bd4+/–) 19...Nc7 20.Bc8 Nc8 21.f5 Na6? (better is 21...Qd5 22.Qc1 f6+=) 22.Na6+– Ra6 23.Qg4 (better is 23.f6+–) 23...c5?? (better is 23...f6 24.ef6 Rf6 25.Bd4 Rf7+/–) 24.f6+– g6 25.Qg5 Kh8 (25...Nd6 26.ed6 Rd6 27.Qc5+–) 26.Qh6 (better is 26.Rf3 Nd6 27.Qh6+–) 26...Rg8 27.Rf3 Qf8 28.Rh3?? (better is 28.Qg5 h5 29.Rh3+–) 28...Qh6–/+ 29.Rh6 Na7 (better is 29...Nb6!? 30.Re1 Nd7–/+) 30.Rf1 Nc6?? (better is 30...Re6 31.Rf3 Re5=) 31.Rf3+– Ne5 (31...Rg7 32.e6 Ne5 33.fg7 Kg7 34.Rfh3 Re6 35.Rh7 Kf6 36.Rh8+–) 32.Rfh3 Rga8?? (32...Rg7 33.fg7 Kg7 34.Rh7 Kf6+–) 33.Rh7 Kg8 34.Rg7 Kf8 35.Rh8 1–0. maxum – badboy1221, Live Game Caissa's Web, 2004.

6.Nf3 dc4 7.Bc4 Bd6 8.d4 =.

6.Nf3 Qc7 7.Be2 Bd6 8.0–0 (8.c5 Be7+=) 8...Nbd7 9.c5 Be7 10.Nc3 b5 11.cb6 Nb6 12.Rc1 Bb7 13.Na4 0–0 14.Nc5 Bc5 (14...Nbd7 15.Bd4+/–) 15.Rc5 Nbd7 16.Rc1 e5 17.h3 (17.d4 e4 18.Ne5 a5+/–) 17...e4 18.Nd4 Ne5 19.f4 Ng6 20.Qe1 Rad8 21.Kh1 Ne7 22.Qh4 Rd6 23.g4 (23.d3 ed3 24.Bd3 Ne4+/–) 23...h6 24.Rg1 Ng6 25.Qg3 Re8 26.Nf5 Rde6 27.g5 hg5 28.Qg5 (< 28.fg5 Qg3 29.Rg3 Nd7 30.Ng7 Kh7+–) 28...Qd8 (28...Bc8 29.Kg2+/–) 29.Ng7 Kg7 30.Bh5 (30.f5 Re5+=) 30...Kf8 31.f5+/– Nh5 32.Qh5 Re5 33.Qh6 Ke7 34.Rg6 fg6 35.Be5 Kd7 36.Bh2 Rh8 37.Qg7 Kc8+/– 38.Qe5 (38...Rh3 39.Qb8 Kd7 40.Qb7 Ke8 41.fg6 Rh2 42.Kh2 Qh4 43.Kg2 Qg4 44.Kf2 Qf3 45.Kg1 Qg4 46.Kf1 Qf3 47.Ke1 Qh1 48.Ke2 Qf3 49.Ke1 Qh1 50.Ke2 Qf3 51.Ke1=). Margraf – Stagener, Landsberg, 1988.

6.Nf3 Nbd7 7.Qc2 h6 8.Be2 Bd6 9.d3 0–0 10.Nbd2 b6 11.d4 b5 12.c5 Bc7 13.Ne5 Bb7 14.Ndf3 a5 15.0–0 ab4 16.ab4 Qe7 17.Bd3 Ra1 18.Ra1 Ra8 19.Ra8 Ba8 20.Bc1 Nf8 21.Qa2 Qe8 22.Qc2 Bb7 23.g4 Qa8 24.g5+/– hg5 25.Ng5 Be5 26.de5 Ne4 27.Be4 de4 28.Ne4 Qa1 29.f4 Ng6 30.Nd6 Ba6 31.Kf2 Qa4 32.Qd2 Qb3 33.Kg3 Qd5 34.Qe1 f6 35.ef6 gf6 36.Bb2 e5 37.f5 Nh8 38.Qa1 Qd2 39.Qa3?? Qe1= 40.Kf3 Qd1 41.Kf2 Qd2 ˝–˝. Bartle,Georg – Oser,Thor, Baden–ch HT2, 2002.

6.Nf3 h6 7.Nc3 dc4 8.Bc4 b5 9.Be2 Nbd7 10.d4 Bb7 11.0–0 g5 12.Nd2 Bg7 13.Nce4 Ne4 14.Ne4 Nf6 15.Nc5 Rb8 16.Rc1 0–0 17.Nb7 Rb7 18.Rc6 Ra7 19.Qc2 Qd7 20.e4 Rd8 21.d5! ed5? (21...Qe8+–) 22.Bf6 (22.Rf6?! Rc8 23.Qb1 Bf6 24.Bf6 de4 25.Qe4 Re8+–) 22...Bf6 23.Rf6 de4 24.Rh6 Qe7 (24...Kg7 25.Rh5 Qe7 26.f4+–) 25.Qc3 (25.Qc3 f6 26.Rf6+–) 1–0. fredbaraer (1900) – beammeupscotty (2150), net–chess.com, 2013.

6.Nf3 Be7

7.Qc2 a5 8.b5 dc4 9.Bc4 cb5 10.Bb5 Bd7 11.Be2 0–0 12.Ng5 g6 13.h4 h6 14.f4 (better is 14.Nf3=) 14...Nh5?? (14...hg5 15.hg5 Nh7=) 15.Bh5+– hg5 16.hg5 e5 17.Bg6 f5 (17...Bg5 18.fg5 Qg5 19.Bh7 Kg7+–) 18.Be5 1–0. combijack (1750) – wierdaj (1660), gameknot.com, 2009.

7.d3 0–0 8.Nbd2 (8.c5 a5=) 8...b6 (8...dc4 9.Nc4 b5 10.Nce5=) 9.Be2 Bb7 (9...dc4 10.dc4 a5 11.b5=) 10.0–0 h6 (10...Nbd7 11.d4=) 11.Rc1 (11.Qc2 a5+=) 11...Nbd7 (11...a5 12.c5=) 12.Nb3 (12.d4 a5 13.cd5 Nd5=) 12...Qc7 (12...dc4 13.Rc4 c5 14.bc5=) 13.cd5 (13.c5 bc5 14.Bf6 Bf6 15.Nc5 Nc5 16.Rc5 a5=) 13...Nd5 14.Qd2 (14.d4 Rfd8+=) 14...c5 (14...Bd6 15.d4=) 15.d4 (15.bc5 Nc5 16.Nc5 bc5+= (16...Bc5? 17.d4+–)) 15...a5 (15...Rac8 16.Bd3=) 16.bc5+/– bc5 (better is 16...a4 17.cb6 Qb6+/–) 17.e4?? (better is 17.Nc5 Nc5 18.dc5+–) 17...N5f6 (17...Nf4 18.Nc5 Nc5=) 18.Bd3 (18.e5!? Ne4 19.Qe3=) 18...Be4 19.Ne5 Qb6?? 20.Nd7+/– Qb3? 21.Nf6+– Bf6 22.Be4 Rab8 23.Bc3 cd4 24.Bd4 Bd4 25.Qd4 Qa3 26.Rc3 Qb4 27.Qd3 f5 28.Bf3 Rfd8 29.Qc2 a4 30.Ra1 Rd6? 31.h3 Rdb6 32.Ra4 Qb1 33.Qb1 Rb1 34.Kh2 Kf7 35.Rc7 Kf6 36.Raa7 g5 37.Bh5 Rh8 38.Ra5 Rb2 39.Rf7 1–0. wlittle (2300) – wliu (1930), net–chess.com, 2005.

7.d3 dc4 8.dc4 Qd1 9.Kd1 =+.

7.Be2 0–0 8.0–0 Nbd7 9.c5 b6 10.d4 h6 11.Nbd2 Qc7 12.cb6 Nb6 13.Qc2 Bb7 14.Rac1 Rac8 15.Nb3 Ne8 (15...Na4!?+/–) 16.Na5 Nd6 17.Ne5 Ndc4 18.Nac4 dc4 19.f4 Nd5 20.Nc4 a5 21.ba5 Ba6 22.Qd2 Qb7 23.e4 Nf6 24.Nb6 Be2 25.Qe2 Rcd8 26.f5 ef5 27.Rf5 g6 (27...Rb8 28.Qd3+–) 28.Rf2 Nd7 29.Nc4 Bg5 (29...Rb8 30.Bc3+–) 30.Rcf1 Qc7 31.e5 Rde8 32.g3 h5 (32...Re6 33.Bc3+–) 33.Nd6 Re7 34.Bc3 c5 35.d5 Qd6 (35...h4+–) 36.ed6 Re2 37.Re2 Bd8 (37...f5 38.Re6 Kf7 39.Rb1+–) 38.a6 Bb6 (38...c4 39.Kg2 g5 40.a7+–) 39.Re7 c4 40.Kg2 Nc5 41.Rb1 Rb8 (41...h4+–) 42.Rb6! Rb6 (42...Rb6 43.Re8 Mate attack) 43.Re8 1–0. pierred (2825) – ekosachro (2390), net–chess.com, 2015.

7.Be2 Nbd7 8.0–0 b5 9.c5 Bb7 10.d3 0–0 11.Nbd2 Re8 12.Ne5 Ne5 13.Be5 Nd7 14.Bb2 Bf6 15.Bf6 Qf6 16.d4 Qg5 17.f4 Qh4 18.Nf3 Qh6 19.h3 Nf6 20.Nh2 (20.Bd3 a5+=) 20...Rab8 (20...a5=) 21.g4 (21.Bd3!?+=) 21...Qh4 (better is 21...Qh3!? 22.Rf3 Qh4–/+) 22.Kg2= Ne4 23.Qd3? (better is 23.Qe1 Qh6 24.Nf3=) 23...Qg3–+ 24.Kh1 Qh3 25.Rf3 Qh6 26.g5 Qg6 27.Raf1 f5 (better is 27...Bc8–+) 28.Rh3= Re7 29.Bh5 Qh5 (better is 29...Ng3! 30.Rg3 Qh5=) 30.Rh5+– g6?? (better is 30...Ng3 31.Kg2 Nh5+–) 31.Rh3 h5 (31...Ra8 32.Nf3+–) 32.gh6 Rh7 33.Kg2 Kf7 34.Nf3 Rg8 35.Ne5 (35.Ng5 Ng5 36.fg5 Ke8+–) 35...Ke7 (35...Ke8 36.Rg1+–) 36.Kf3 (36.Rg1 g5 37.fg5 Rg5 38.Kf1 Kf8+–) 36...Ba8 (36...g5 37.Rhh1 g4 38.Kg2+–) 37.Rg1 Bb7 (37...g5 38.fg5 Rg5 39.Qd1+–) 38.Ng6 (better is 38.Rg6 Rg6 39.Ng6 Ke8 40.Ne5+–) 38...Rg6 (38...Kf6 39.Rhg3 Ng3+–) 39.Rg6 Nf6 40.Rg7 Rg7 41.hg7 Kf7 42.g8Q! Kg8 (42...Ng8 43.Rh7) 43.Qf1 Ng4 44.Qh1 Kf7 45.Rh7 Kg8 46.Rb7 (46...Nf2 47.Qh7 Kf8 48.Qf7; 46.Rh8 Kf7 47.Qh7 Kf6 48.Rf8#) 1–0. maxum – georgizc, Live Game Caissa's Web, 2004.

5.c4 Nc6

6.Nf3 Be7 7.cd5 ed5 8.Be2 0–0 9.Nc3 (9.Qc2 Re8=) 9...Bf5 (9...d4 10.ed4 Nd4 11.Nd4 Qd4 12.Bf3=+) 10.0–0= Qd6 (10...Re8 11.Na4=) 11.h3. wlittle (2135) – ramprasad (2075), net–chess.com, 2004.

5.c4 Nbd7

6.Nf3 dc4 7.Bc4 b5 8.Be2 Bb7 9.d4 =.

6.Nf3 c6 7.c5 b6 8.d4 a5 =.

6.Nf3 c6 7.d3 a5 8.c5 =.

6.Nf3 c6 7.d3 Be7 8.Qc2 (8.Be2 a5=) 8...0–0 (8...a5 9.b5=) 9.Be2= Re8 (9...a5 10.b5=) 10.0–0 Nf8 (10...a5 11.c5=) 11.Nbd2 Ng6 12.Ne5 (12.c5 a5+=) 12...Ne5= 13.Be5 Nd7 14.Bg3 (14.Bc3 b6+=) 14...Bf6 15.d4 e5 16.de5 Ne5 17.Rad1 dc4 (17...a5 18.Nf3+=) 18.Nc4 Qe7 19.Nb6 (19.Nd6 Rd8 20.Qc5 Ng6+=) 19...Rb8 20.Bd3 (20.Qc5 Bf5+=) 20...h6 (20...g6 21.Nc4+=) 21.Nc4 Bd7?? (better is 21...Ra8+=) 22.Ne5+– Be5 23.Be5 Qe5 24.Bh7 Kh8 25.Rd7 Qf6 26.Qf5 Qf5 27.Bf5 g6 28.Bc2 Kg7 29.Rfd1 Re5 30.Bb3 Rf5 31.Re7 b6 32.Rdd7 a5 33.Rf7 Rf7 34.Rf7 Kh8 35.Rf6 Rd8 36.Kf1 Rd3 37.Bc4 Ra3 38.ba5 ba5 39.Rg6 Ra1 40.Ke2 a4 41.Rh6 Kg7 42.Rc6 a3 43.Ra6 Rc1 44.Ra3 Rc4 45.f4 Kf6 46.Kf3 Rc2 47.h4 Rc1 48.Ra2 Rh1 49.g3 Rf1 50.Kg4 Re1 51.Ra6 Kg7 52.Re6 Kf7 53.f5 Ra1 54.e4 Ra4 55.Kg5 Ra8 56.g4 Rg8 57.Kf4 Rh8 58.h5 Ra8 59.h6 +–. Lopez Gajete,Antonio – Zurera Fernandez,Javier, Malaga–chT Primera, 1999.

5.c4 Be7

6.Nc3 0–0 =.

6.Nc3 a5 7.b5 0–0 8.d4 c6 9.Rc1 =.

6.c5 b6 7.d4 Bd7 8.Nf3 bc5 9.dc5 +=.

6.d4 a5 7.Qa4 Nbd7 8.c5 Ne4 9.Bd3 =.

6.Qf3 Nc6 7.d4 0–0 8.Nd2 Bd7 9.Bd3 =.

6.Nf3 0–0 7.cd5 ed5 8.Be2 Re8 9.0–0 =.

6.f4 0–0 7.Nf3 Nbd7 8.Be2 (8.Ne5 c5=+) 8...dc4 9.Bc4 b5 10.Bb3 (10.Be2 c5=+) 10...c5–/+ 11.bc5 Nc5 12.0–0 (12.Bc2 Nd3 13.Bd3 Qd3–/+) 12...Nb3 13.Qb3 Bb7 14.Nc3 (14.Rc1 Bf3 15.gf3 Qd7–/+) 14...Qd3 15.Qd1 (15.Rf2 Ng4 16.Ne1 Qg6–/+) 15...Rfd8–+ 16.Bc1 (16.Rf2 Ng4 17.Re2 Rac8–/+) 16...Bc5 17.Qe1 (17.Qe2 Rac8–+) 17...Rac8 18.Nd1 Qb3 (18...Rc7 19.Nb2 Qg6 20.a4–+) 19.d4 Be7 20.Rf2 Rc2 21.Rc2 Qc2 22.Qd2 Rc8 23.Qc2 Rc2 24.Ne1 Rc8 25.Nf2 Ne4 26.Ne4 Be4 27.Bd2 f6 28.Kf2 Rc4 29.g4 Bd6 30.Ra2 Kf7 31.h4 h6 32.Nf3 Bf3 33.Kf3–/+ Ra4 34.Bc1 b4 35.Ke4 b3 36.Ra1 Rc4 37.f5 ef5 38.Kd5= Rc2 39.Kd6 b2 40.Bb2+/– Rb2 41.gf5 Re2 42.Rb1 Re3 43.Rb7 Kf8 44.a4 Re4 45.Rb8 Kf7= 46.Rb7 Kf8+= 47.Kd5 Rh4 48.Ra7 Rf4 49.Ra6 h5 50.Ke6 Re4= 51.Kd5 Rf4 ˝–˝. Jovanovic,Momir (1955) – Rueb,Werner (1915), Regionalliga SW, 2001.

5.c4 g6

6.Nf3 Bg7 7.d4 dc4 8.Bc4 0–0 9.0–0 (9.Nc3 b5 10.Bd3 Bb7 11.0–0 Nc6 12.Rc1 Ne7 13.e4 Nc6+=; 9.Bd3 Qd6 10.0–0 Nc6 11.Nc3 e5 12.Nb5 Qe7 13.de5 Ng4=; 9.Qc2 b5 10.Be2 Bb7 11.Nc3 Nc6 12.Rc1 Re8 13.0–0 Qd6+=) 9...b5 10.Bd3 Bb7 11.Nc3 Nc6 12.Qc2 Qd6 13.Rfc1 Rfc8 +=.

6.Nf3 Bg7 7.d4 dc4 8.Bc4 b5 9.Bd3 (9.Be2 0–0 10.0–0 Bb7 11.Nc3 Nc6 12.Rc1 Qd6 13.e4 Ne8=; 9.Bb3 0–0 10.Nc3 Bb7 11.Rc1 Qd6 12.0–0 Nbd7 13.Re1 Rfd8+=; 9.Ba2 0–0 10.0–0 Bb7 11.Nc3 Qd6 12.Qe2 Rd8 13.e4 Qf4+=) 9...Bb7 (9...0–0 10.0–0 Bb7 11.Nc3 Nc6 12.Qc2 Ne7 13.e4 Nc6+=) 10.0–0 0–0 11.Nc3 Nbd7 (11...Qe7 12.Rc1 Rd8 13.Qe2 Nc6+=) 12.Qe2 (12.e4 Nb6 13.Qc2 Nfd7+=) 12...c6 (12...Qe7 13.e4 Rad8+=) 13.Rfc1 a5 14.ba5 Ra5 15.Ne4 Ne4 16.Be4 Exerts pressure on the backward pawn 16...Qb6 17.Bc3 Ra6 18.Bd3 Rfa8 19.Bb4 c5? (better is 19...e5=) 20.dc5+– Bf3 21.gf3 (21.cb6 Be2 22.b7 Ba1 23.ba8R Ra8 24.Be2 Be5+–) 21...Qd8 22.Ra2 Rc8 23.Bb5 Ra7 24.c6 Ne5?? (better is 24...Nb6+–) 25.f4 Nd7 (25...Nc6 26.Rc6 Rc6 27.Bc6+–) 26.Rd1 1–0. pzn2pawn (1825) – bkn501 (1730), redhotpawn.com, 2016.

6.Nf3 Bg7 7.d4 dc4 8.Bc4 Nbd7 9.0–0 (9.Nc3 0–0 10.0–0 b5 11.Bd3 Bb7 12.e4 Re8 13.Qc2 Nb8+/–; 9.Qc2 0–0 10.0–0 Nb6 11.Bd3 Bd7 12.Nc3 Nbd5 13.Rfc1 Nc3+=; 9.Nbd2 0–0 10.0–0 Nb6 11.Bd3 Bd7 12.Ne4 Na4 13.Rb1 Ne4=) 9...0–0 10.Nc3 b5 11.Bd3 Bb7 12.e4 Re8 13.Qc2 Nb8 +/–.

5.Bd3 Nc6

6.f4 Bd6 7.Nf3 0–0 8.0–0 h6 (8...Bd7 9.Nc3=) 9.c4 (9.Ne5 Be7+=) 9...dc4= 10.Bc4 Re8 (10...b5 11.Be2=) 11.Ne5+= Be5 (11...Bd7 12.d3+=) 12.fe5 Ne4 (12...Nd5 13.Qf3 Rf8 14.d4+=) 13.Qc2 f5? (better is 13...Ng5+/–) 14.ef6+– Nf6 15.Bf6 gf6 16.Qg6 Kh8 17.Qh6 Kg8 18.Rf3 Kf7 19.Qh7 Kf8 20.Rg3 (20...Nb4 21.Rg8#) 1–0. Woelfelschneider,Peter (1800) – Kilian,Rinus, internet, 2002.

6.f4 Bd6 7.Nf3 Qe7 8.Ne5 0–0 9.0–0 =.

5.d4 b5

6.Bd3 Bb7 7.Nf3 h6 (7...Bd6 8.0–0=) 8.0–0+= Bd6 9.Nbd2 Nc6 (9...0–0 10.Nb3+=) 10.e4 (10.c3 0–0+=) 10...de4 11.Ne4 Ne4 12.Be4 Rb8 (12...0–0!?+=) 13.d5+/– ed5 (13...Ne7 14.Bg7 Rg8 15.Bf6+/–) 14.Bd5 Ne5?? (better is 14...0–0+/–) 15.Bb7+– (15.Ne5?! Be5 16.Bf7 Kf7 17.Qh5 Kg8 18.Qe5 Qd7+–; 15.Be5?! Be5 16.Bb7 Ba1 17.Bc6 Kf8 18.Qa1 Qd6+–) 15...Rb7 16.Ne5 Be5 (16...0–0 17.Qf3 Rb6 18.Rad1+–) 17.Qd8 (17.Be5 Qd1 18.Rad1 0–0+–) 17...Kd8 18.Be5 1–0. Wall,Bill – Taylor,Ken, internet, 2002.

6.Bd3 c6 7.Nd2 =.

6.Nf3 Nc6 7.Nbd2 Bd6 8.Bd3 0–0 9.0–0 Nh5? (better is 9...Bb7=) 10.Ne5+– Ne5?? (better is 10...Be5 11.Bh7! Kh7 12.Qh5 Kg8 13.de5 Qd7+–) 11.de5 (11.Qh5?! Nd3 12.cd3 a5+=) 1–0. Janek – tobokin, internet, 2017.

6.Nf3 Bd6 7.Bd3 Ne4 8.0–0 Qf6 (8...0–0 9.a4=) 9.Nbd2 Nd2 (9...Bb7 10.Ne5+=) 10.Qd2 Nd7 11.e4 de4 12.Be4 Rb8 13.c4 (13.Ne5 Qh4 14.f4 Be5 15.de5 Bb7 16.Bb7 Rb7+/–) 13...Bb7 (better is 13...bc4!? 14.Qc2 a5=) 14.d5 Qe7? (14...Qf4 15.de6 Be4 16.ed7 Kd8 17.Qf4 Bf4+=) 15.c5+– Bd5 (15...Bc5 16.de6 (16.bc5?! Nc5 17.Bc2 Bd5+–) 16...fe6 A) 17.bc5 Be4 18.Qe3 A1) worse is 18...Nc5 19.Bd4 Bf3 20.Bc5+– (worse is 20.Qf3 Nd7+=); A2) 18...Bd5+=; B) 17.Bb7 Rb7 18.bc5 Nc5 19.Qe3+–) 16.cd6 (16.Bd5 Bc5 17.bc5 0–0+–) 16...cd6 (16...Qd6 17.Bd5 Qd5+–) 17.Bd5 ed5 (17...0–0 18.Bb3 Rfd8+–) 18.Rfe1 Ne5 (18...f6 19.Re7 Ke7 20.Qd5+–) 19.Ne5 (19.Ne5 de5 20.Re5 Qe5 21.Be5+–) 1–0. Wall,Bill – Shel, internet, 2005.

5.d4 Nbd7

6.c4 dc4 7.Bc4 Nb6 (7...b5 8.Be2=) 8.Bb3 (8.Bd3 Nfd5=) 8...Bd7 9.Nf3 Bd6 10.Nc3 Bc6 11.Qe2 Qd7 (11...0–0!?=) 12.e4 Be7 13.a4 (better is 13.Ne5!? Qd8 14.h3+=) 13...Bb4= 14.a5? (better is 14.0–0 Bc3 15.Bc3 Be4 16.Ne5+=) 14...Ne4–+ 15.0–0–0? (better is 15.Qe3 Nd5 16.Bd5 Qd5 17.0–0 Bc3 18.Bc3–+) 15...Nc3 (15...Bc3?! 16.ab6 cb6 17.Ne5–+) 16.Bc3 Bb5 (better is 16...Bc3 17.ab6 cb6–+) 17.Qa2?? (better is 17.Qc2 Nd5 18.Bd5 Ba3 19.Bb2 Bb2 20.Kb2 Qd5 21.Rc1–/+) 17...Qc6 (better is 17...Bc3 might be the shorter path 18.ab6 cb6–+) 18.Ne5 Qc3 19.Kb1 Nd7 20.Nf7 Bd3 21.Rd3 Qd3 22.Bc2 Qb5 23.Qe6 Kf8 24.Nh8= Bc3 25.Bb3 White has a mate threat 25...Qd3 26.Bc2 ˝–˝. Gantert,Peter (1675) – Meurer,Ruediger (1635), Cologne–ch, 2001.

6.Bd3 b6 7.Nd2 Bb7 8.Ngf3 Be7 9.0–0 0–0 10.Re1 c5 11.dc5 bc5 12.Rb1 c4 13.Be2 Qc7 14.Nd4? (better is 14.Bc3+=) 14...c3–+ 15.Ba1 cd2 16.Qd2 Ne4 17.Qd3 Ne5 18.Qd1 Nc3 19.Bc3 Qc3 20.Rb3 Qc7 21.Qd2 Rac8 22.f4 Nc6 23.Nf3 Rfd8 24.Rd3 Bf6 25.Rf1 Ne7 26.Rc1 Bc3 27.Qd1 Qb6 (27...Nf5!? 28.g4 Nd6 29.Rb1–+) 28.Kh1 (28.Nd4 Rc4–+) 28…Nf5 (28...Nf5 29.Qg1 Bb2–+) 0–1. Klisz,Karolina – Sobczak,Marta, Mistrzostwa Miedzywojewodzkie Juniorek Poland, 2012.

5.d4 Be7

6.c4 dc4 7.Bc4 b5 8.Bb3 (8.Bd3 0–0=) 8...Bb7 9.Nd2?? (Better is 9.Nf3=) 9...Bg2–+ 10.Ne2 Bh1 11.Ng3 (11.f3 Nd5 12.Bd5 ed5–+) 11...Bb7 12.h4 (12.Nh5 0–0–+) 12...h6 (12...0–0 13.Qc2–+) 13.h5 Nbd7 14.Qc2 Rc8 15.Qd3 Bd5 16.Bc2 c6 17.e4 Bc4 18.Qf3 Ne4 19.Nde4 Nf6 20.Rd1 Bd5 21.Qe3 a5 22.f4 ab4 23.ab4 Ne4 24.Ne4 Bh4 25.Ke2 Bc4 26.Kf3 Bd5 27.Rg1?? f5–+ 28.Rg7 fe4 29.Be4 Qf6 30.Bd5 cd5 31.Ra7 0–0 32.Qg1 Kh8 33.Rg7 Rg8 34.Rg6 Rg6 35.hg6 Rg8 36.g7 Rg7 37.Qc1 Rg3 38.Ke2 Qf5 39.Qc8 Kh7 40.Qd7 Rg7 41.Qe8 Qc2 42.Kf3 Qb2 43.Qe6 Qc3 44.Ke2 Rg2 45.Kf1 Qf3# 0–1. Slavisa666 – Putte5, Live Game Caissa's Web, 2004.

6.Bd3 a5 7.b5 c6 =.

5.Be2 c5

6.bc5 Bc5 7.a4 0–0 8.Nf3 Nc6 9.0–0 Bd6 10.c4 b6 11.cd5 =.

6.bc5 Bc5 7.Nf3 0–0 8.0–0 Nc6 9.Ne5 Ne5 10.Be5 Nd7= 11.Bg3 =.

6.bc5 Bc5 7.Nf3 Nc6 8.Nc3 0–0 9.0–0 b5 10.Na2 Rb8 11.Ne5 =+.

6.bc5 Bc5 7.Nf3 Nbd7 8.d3 b5 9.Nbd2 Bb7 10.0–0 Rc8 11.c4 dc4 12.dc4 bc4 13.Nc4 Be7 (13...0–0!?=) 14.Nd6+= Bd6 15.Qd6 Attacks the isolani on a6 15...Rc6 16.Qd4 0–0 17.Rac1 Rc1 18.Rc1 h6 19.Bc3 Re8 20.h3 Qa8 21.Ne5 Ne5 22.Qe5 Bg2?? (better is 22...Rc8 23.f3 Bc6+/–) 23.Qg3+– Nh5 (23...Bh3 24.Bf6 Qg2 25.Qg2 Bg2 26.Bg7 Kg7 27.Kg2 Ra8+–) 24.Bh5 g6 (24...e5 25.Qg2 Qd8+–) 25.Qe5 Kf8 (25...f6 26.Qf6 e5 27.Qg6 Kh8 28.Qf6 Kh7 29.Bg6 Kg8 30.Qf7 Kh8 31.Qh7#) 26.Qg7 Ke7 27.Bb4 Kd8 28.Qf6 Kd7 29.Qf7 Kd8 (29...Re7 30.Qe7#) 30.Qc7# 1–0. Janek – Leonard, internet, 2016.

5.Be2 Bd6

6.Nf3 0–0 7.0–0 a5 8.b5 Nbd7 9.d4 Nb6 10.Bd3 c6 11.a4 =.

6.Nf3 0–0 7.0–0 Nbd7 8.d4 Nb6 9.Ne5 Nfd7 10.Nd2 a5 11.b5 =.

6.Nf3 Nc6 7.0–0 0–0 =.

6.Nf3 Nc6 7.c4 dc4 8.Bc4 Bd7 (8...0–0 9.d4=) 9.0–0 (9.d4 0–0=) 9...0–0 (9...Qe7 10.Nc3=) 10.Qc2 Re8 (10...b5 11.Be2=) 11.d3 (11.d4 Rc8+=) 11...e5 (11...b5 12.Ba2=) 12.Nbd2 (12.Nc3 Re7=) 12...h6 (12...b5 13.Ba2=) 13.Bb3 (13.Ne4 Ne4 14.de4 Bg4=) 13...Be6 (13...b5 14.d4=) 14.Be6 Re6 15.Rfd1 (15.Rad1 Qe7=) 15...Re8 (15...Qe7 16.Ne4=) 16.Nc4 (16.d4+=) 16...b5 (16...Re6!?+=) 17.Nd6+/– Qd6 18.Rac1 Re6 19.d4 e4 20.Ne5 Ne7 21.Qc7 Qc7 (21...Nfd5!? 22.Qb7 Rd8=) 22.Rc7+/– Rc8 (22...Nfd5 23.Rb7+/–) 23.Rc8 Nc8 24.Rc1 Ne7 (24...Nb6 25.f3+/–) 25.Rc7 Nfd5 26.Rb7 (26.Ra7 f5+/–) ˝–˝. Vahl,Laurens – Zomer,Anoek, NED U14 op Hengelo, 1999.

6.Nf3 Nbd7 7.0–0 e5 8.d3 Qe7 9.c4 dc4 10.dc4 c5= 11.Nh4 =.

6.Nf3 Nbd7 7.d4 c6 8.c4 dc4 9.Bc4 0–0 10.Qc2 Nb6 11.Bd3 =.

6.f4 0–0 7.Nf3 b5 8.a4 ba4 9.Ba3 Nbd7 10.b5 (10.0–0!?+=) 10...Ba3 11.Ra3 ab5 12.Bb5 Ba6 (12...Nb6!?–/+) 13.Ba4+= c5 14.Nc3 Nb6 Black plans d4 15.Qa1 Nc4 16.Ra2 d4 17.ed4 cd4 18.d3?? (better is 18.Ne2 Bb7 19.Ned4+=) 18...dc3–+ 19.Bc6 Bb7! 20.Bb7 Ra2 21.Qa2 Ne3 22.Ne5 Qb6 23.Bf3 Qb2?? (better is 23...Neg4! 24.Bg4 Qe3 25.Kf1 Qc1 26.Kf2 Ng4 27.Ng4 Qh1–+) 24.Qb2= cb2 25.Kd2 Ned5 (better is 25...Rb8!? 26.Ke3 b1Q 27.Rb1 Rb1=) 26.Rb1 Rb8 (26...Nf4 27.Rb2 g5 28.c4+/–) 27.g3 g6 28.Nc4 h5 29.Rb2 Rb2 30.Nb2 Nb6 31.c4 Nfd7 32.d4 f5 (32...Nf6 33.c5 Nbd5 34.Nc4+–) 33.c5 Nd5 34.Nc4 Kf7 (34...N7f6 35.Ne5+–) 35.Ne5 (better is 35.Bd5!? ed5 36.Ne5 Ke6 37.Nd7 Kd7+–) 35...Ne5 36.fe5 Nc7 37.Kd3 Ke7 38.Ke3 Nb5 39.Bc6 Nc7 40.Kf4 Kf7 41.Kg5 Kg7 42.Ba4 Kf7 43.Kh6 Nd5 44.Bd7 (44.Bc6 Nb4 45.Bf3 Na6+–) 44...Ke7 (44...Nc3 45.Bc6 h4 46.gh4+–) 45.Bc6 Nb4 46.Ba4 (better is 46.Bh1!? Nc2 47.Kg6 Nd4+–) 46...Kf7 47.Kg5 Nd5 48.c6 Nc7 49.Kf4 (49.Bb3 Kg7+–) 49...Nd5 50.Kf3 Ke7 51.Ke2?? (better is 51.Bb3 Nc7 52.Kf4+–) 51...Nc3–+ 52.Kd3 Na4 53.Kc4 Nb6 (better is 53...g5–+) 54.Kc5 Nd5 55.Kb5? (better is 55.h4 f4 56.gf4 Nf4 57.Kb5–+) 55...Kd8 56.Kc5 Kc7 (56...g5 57.Kc4–+) 57.Kb5 (57.h4–+) 57...g5 Black intends f4 58.Kc5 f4 59.Kc4 (59.gf4 gf4 60.Kc4 Nb4–+) 59...Kc6 (better is 59...fg3 60.hg3 h4 61.gh4 gh4 62.Kd3 h3 63.Kc2 h2 64.Kb1 h1Q 65.Kc2 Qh2 66.Kd3 Qb2 67.Kc4 Qc3 68.Kb5 Qb4 69.Ka6 Qb6) 60.Kd3 (60.gf4 Nf4 61.Kc3 Kd5–+) 60...fg3 61.hg3 h4 62.Ke2 hg3 63.Kf3 g2! 64.Kg2 Nf4 65.Kf3 Kd5 66.Kg4 Kd4 67.Kg5 Ke5 68.Kg4 Ke4 69.Kg3 Ke3 70.Kg4 e5 71.Kf5 e4 72.Kg4 Nd3 73.Kg3 Kd2 74.Kg2 e3 0–1. mikebaldini (1640) – oz_bear (1645), gameknot.com, 2015.

6.f4 a5 7.b5 0–0 8.Nf3 Nbd7 9.0–0 =.

5.Be2 Nbd7

6.Ra2 Bd6 7.Nf3 e5 8.0–0 0–0 9.Nc3 =+.

6.Nc3 Bd6 7.f4 d4 8.ed4 Bf4 9.Nf3 Bd6 10.0–0 0–0= 11.Qe1 =.

6.Nc3 e5 7.Rb1 Bd6 8.Nf3 0–0 9.0–0 Re8 10.Nh4 Nb6 11.Nf3 =+.

6.Nc3 e5 7.Nf3 Bd6 8.0–0 0–0 9.b5 Re8 10.ba6 ba6 11.Rb1 =+.

6.Nc3 e5 7.Nf3 Bd6 8.0–0 0–0 9.d3 Re8 10.Nd2 b6 11.Nf3 =+.

6.Nf3 Bd6 7.0–0 e5 8.d3 Qe7 9.Nbd2 =.

6.Nf3 Bd6 7.d4 a5 8.b5 Nb6 9.0–0 Qe7 10.Ne5 0–0 11.c4 =.

6.f4 c5 7.bc5 Bc5 8.Nf3 0–0 9.0–0 =.

6.Nh3 Bd6 7.0–0 0–0 8.f4 b5 9.Nf2 =+.

5.Nf3 a5

6.ba5 Ra5 7.Be2 Bd6 8.d4 0–0 9.0–0 Nbd7 10.c4 dc4 11.Bc4 b6 12.Re1 Bb7 13.Nbd2 Qe7 14.a4 Ne4 15.Ne4 Be4 16.Nd2 Bc6 17.Qc2 Qh4 18.h3 Rg5 19.e4 Qh3 20.Kf1 Rg2 21.Rec1 Bg3 22.Rcb1 Rf2 23.Ke1 Qg4 24.Qd3 0–1. COMP – COMP, 2002.

6.b5 Nbd7 7.c4 Nb6 8.cd5 ed5 9.Bd3 Bd6 10.Qc2 Qe7 11.0–0 0–0 12.Nd4 h6 13.f4 Ne4 14.Nc3 f5 15.Ra2 Re8 16.Be2 g6 17.Rc1 a4 18.Rf1 Be6 19.Ne6 Qe6 20.Raa1 Nc5 21.Bf3 c6 22.bc6 bc6 23.Ne2 Nc4 24.Nd4 Qf7 25.Bc3 Ne4 26.Qc1 Qf8 27.Nc6 Ba3 28.Qc2 Qc5 29.Be4 de4 30.Ne5 Ne5 31.fe5 Reb8 32.Rfb1 Rb1 33.Qb1 Qd5 34.Ra3 Kh7 35.Qb6 Qf7 36.Qc6 Rb8 37.Ra4 Rb1 38.Kf2 Qe7 39.Qf6 Qf6 40.ef6 Rb7 41.Ke2 h5 42.d3 ed3 43.Kd3 Kg8 44.e4 fe4 45.Ke4 Kf7 46.h4 Rc7 47.Bd4 Rd7 48.Ra8 Rb7 49.Rh8 Ke6 50.Rg8 Rb1 51.Rg6 Rh1 52.g3 Re1 1–0. COMP – COMP, 2002.

5.Nf3 b5

6.d3 h6 7.Be2 Bd6 8.Nbd2 Nc6 9.c4 bc4 10.dc4 dc4 11.Bc4 Bd7 12.0–0 0–0 13.Qc2 Qe7 14.Rfd1 e5 15.Ne4 Ne4 16.Qe4 a5 17.Bd5 (17.b5!? Na7 18.a4 Be6+/–) 17...ab4+/– 18.Bc6 Bc6 19.Qc6 ba3 20.Ba3 (better is 20.Bc3!?+/–) 20...Ba3 21.Qc3 (better is 21.Rd7 Qc5 22.Qc7 Qc7 23.Rc7=) 21...c5?? (21...e4!? 22.Nd4 Qc5 23.Qc5 Bc5–/+) 22.Qe5?? (better is 22.Ra3 Ra3 23.Qa3+–) 22...Qe5= 23.Ne5 Rfe8 24.Nc4 Bb2?? 25.Nb2+– Ra1 26.Ra1 g5 27.Rc1 f5 28.Nd3 Kg7 29.Nc5 Re5 30.Nd3 Rd5 31.Ne1 Kf6 32.f3 g4 33.Kf1 h5 34.h3 gh3 35.gh3 Kg5 36.Rc2 h4 37.Rg2 Kh5 38.f4 Ra5 39.Rg5 Kh6 40.Kf2 Ra2 41.Kf3 Rh2 42.Rf5 Rh3 43.Kg4 Rg3 44.Kh4 Re3 45.Ng2 Re2 46.Kg3 Kg6 47.Rg5 Kf6 48.Re5 Rc2?? 49.Re3 Kf5 50.Rf3 Rc1 51.Ne3 Ke4 52.Ng2 Rc5?? 53.Nh4+– White plans f5 53...Rc6 54.f5 Rf6 55.Kg4 Ke5 56.Rf4 Kd6 57.Kg5 Rf7 58.Re4 Rg7 59.Ng6 Kd5 60.Re5 Kd6 61.Kf6 Rg8 62.Re6 Kd7 63.Kf7 Rb8 64.f6 Rb7 65.Re7 Kc6 66.Rb7 Kb7 67.Ke7 Kc7 68.f7 Kc6 69.f8Q Kc5 70.Qd8 (70.Qd8 Kb5 71.Ne5 Kc5 72.Qd6 Kb5 73.Qd3 Kc5 74.Qc4 Kb6 75.Qb4 Kc7 76.Qb5 Kc8 77.Qd7 Kb8 78.Nc6 Ka8 79.Qc8) 1–0. Fournier,Frederic (1755) – esther11, Active, 2008.

6.d4 Bb7 7.Be2 Bd6 8.Nbd2 Nbd7 9.0–0 Nb6 10.c3 Na4 11.Qc2 0–0 12.Rac1 c6 13.Nb3 Bc7 14.Nc5 Nc5 15.dc5 a5 16.Ra1 ab4 17.ab4 Qb8 18.h3 Ne4 19.Bd3 Nf6 20.Ra8 Ba8 21.Ra1 e5 22.Bf5 (22.e4 de4 23.Be4 Ne4 24.Qe4 f5+=) 22...e4 23.Nd4 g6 24.Bg4 h5 (24...Ng4!? 25.hg4 Bh2 26.Kh1 Be5+=) 25.Be2= Be5 (25...Bb7 26.Ra2=) 26.f3 ef3 27.Bf3 (27.Nf3!? Bg3 28.c4+/–) 27...Re8= 28.Bc1 Bh2 29.Kh1 Qg3 (29...Qc7!?=) 30.Qe2 1–0. Fournier,Frederic – masjoni, Online Chess, 2009.

6.Be2 c5 7.bc5 Bc5 8.d4 Qa5?? (8...Bd6 9.0–0=) 9.Nbd2?? (better is 9.Bc3 Qc7 10.dc5+–) 9...Be7 10.0–0 b4 (10...0–0 11.c3=) 11.Nb3 (11.ab4 Qb4 12.Ba3 Qb7+/–) 11...Qb6 12.ab4 Bb4 13.Ba3 Bc3 14.Rb1 Qc7 15.Bc5 Nbd7 16.Qd3 Ne4 17.Ba3 Nb6 18.Nfd2 Bd2 19.Nd2 Nd2 20.Qd2 Nc4 21.Qb4 Bd7?? 22.Qe7 1–0. Fournier,Frederic (2020) – peondamate (1975), Echecs21 (5/0), 2003.

6.Be2 Bd6 7.0–0 =.

6.Be2 Ne4 7.0–0+= Rg8 (7...c5 8.bc5 Nc5 9.Nc3+=) 8.d3 Nf6 9.c4 c6 (9...c5 10.bc5 bc4 11.dc4 Bc5 12.cd5 Qd5 13.Qc2+/–) 10.c5 a5 11.Nbd2 a4 (11...Na6 12.Nb3+/–) 12.Qc2 (12.Rc1 Be7+/–) 12...h6 (12...Nbd7 13.Rad1+/–) 13.e4 g5 14.Ne5 h5 (14...Bg7 15.ed5 ed5 16.Rae1+/–) 15.Ndf3 (15.ed5 ed5 16.Rae1 Be7+/–) 15...g4 16.Nd4 h4? (better is 16...Bb7!?+/–) 17.Nec6+– Nc6 18.Nc6 Qc7 Black prepares g3 (18...Qd7 19.Na5 Qd8 20.e5+–) 19.Bf6 (better is 19.Nd4+–) 19...g3? (19...Qc6 20.Bh4 Bg7 21.ed5 Qd5+–) 20.Ne5 Bg7 (20...gh2 21.Kh1 h3 22.gh3+–) 21.Bg7 Rg7 (21...gh2 22.Kh2 Rg7 23.d4+–) 22.f4 (22.d4 gh2 23.Kh2 Rb8+–) 22...f6 (22...h3 23.gh3 g2 24.Rf2+–) 23.Ng4 e5 24.Nf6 Kf7 25.Nd5 Qb8 26.fe5 Ke6 27.Qd2 Ke5 28.Qb2 Ke6 29.Qf6 Kd7 30.c6 Ke8 31.Qf8# 1–0. Schwertel,Gottfried – Eifrig,Thomas, CiF, 1995.

5.Nf3 b6

6.c4 dc4 7.Bc4 Bb7 8.Be2 Bd6 9.d4 Qe7 10.Nbd2 Nbd7 11.0–0 0–0–0 (11...0–0!?=) 12.Rc1 Kb8 13.e4 (better is 13.b5 ab5 14.Bb5 Ba3 15.Ba3 Qa3 16.Ra1+/–) 13...Nh5?? (better is 13...Ne4 14.Ne4 Be4 15.Ba6 Bd5=) 14.e5+– Bb4 15.ab4 Qb4 16.Qc2 Rc8?! (16...Nf4 17.Rfe1+–) 17.Rb1 Qe7 18.Ra1 Ka7 19.g3 a5 20.Rfb1 Nf8 21.Bc3 Ng6 22.Qb3 Qd8 23.Ba5! Bd5 24.Bb6 Kb7 25.Bc7 Kc7 26.Ra7 Kc6 27.Qb5 (27.Qb7) 1–0. Fournier,Frederic – Eh2407, Partie evaluee, 2009.

6.Be2 Bb7 7.0–0 Nbd7 8.d3 Bd6 9.Nbd2 0–0 10.c4 c6 11.Qc2 Rc8 12.d4 dc4 (12...c5!? 13.dc5 bc5=) 13.Nc4+= (worse is 13.Bc4 c5 14.bc5 bc5=) 13...Be7 14.Rfd1 Qc7 15.Rac1 Qb8 (15...Rfd8 16.e4+=) 16.Nce5 Rfd8 (better is 16...g6+/–) 17.Nf7 (better is 17.Ng5 c5 18.Qb1+–) 17...Kf7= 18.Ng5 Kg8 19.Bc4 Nf8 20.Ne6 Ne6 21.Be6 Kh8 22.Bc8 Qc8 23.e4 Qd7 24.Re1 h6 25.Qb3 Rf8 26.h3 (26.f4 Bd8+=) 26...Nh5+= 27.Qc3 Bf6 28.Rcd1 Nf4 29.Re3 (29.Qg3 Ne6+=) 29...Rd8 (29...Bh4!?–/+) 30.Qc2= Rf8 (30...Ne6 31.Red3 Qf7 32.Qc4=) 31.Rf3+= Ne6 The pressure on d4 grows (31...Bg5 32.Bc1+=) 32.d5+/– Ng5 33.Rf5 (better is 33.Re3!? cd5 34.Bf6 Rf6 35.ed5+/–) 33...cd5= 34.Bf6 gf6 (worse is 34...Rf6 35.Rf6 gf6 36.ed5+/–) 35.ed5 Qd6 (better is 35...Bc8!? 36.Rf4 Nh3 37.gh3 Qh3+=) 36.h4 (36.f4!? Nh7 37.Qf2+/–) 36...Nf7+= 37.Qc3 Exerts pressure on the isolated pawn (37.Qe4 Ne5+=) 37...Ne5 38.Qe3 Kh7 (38...Bd5 39.Qh6 Kg8 40.Rg5 Kf7 41.f4+–) 39.Qe4 Kg7 40.h5 Bc8 41.Rf4 f5 42.Qe3 Bd7 (42...Kf7 43.Rfd4+=) 43.g3 (43.Re1 Re8 44.Qd4 Kf7=) 43...Ng4 44.Qc3 Nf6 45.Rc4 Kh7 46.Qf3 (46.Rc7 Rf7= (46...Nd5? 47.Ra7 Rf7 48.Qd3+–)) 46...Rf7 (46...Rg8 47.Rc6 Bc6 48.dc6+=) 47.Rc3 (47.Rf4 Kg7=) 47...Rg7+= 48.Re3? (better is 48.Rc4+=) 48...f4–+ 49.Rc3 Kh8 50.Rd4–/+ fg3 51.fg3 Qe5 52.Rf4+= Nd5 53.Rf8= Rg8 54.Rd3 Bc6 55.Rg8 Kg8 56.Qg4 (56.Qg4 Kf7 57.Kf2 Qb2 58.Ke1 Qc1 59.Qd1–/+) 1–0. Mamuzic,Mirko (2245) – Kovacevic,Slavko (2185), Druga Liga – Vojvodina, 2012.

5.Nf3 c5

6.b5 (--> 4.a3 c5 5.b5 a6 6.Nf3).

6.Bc3 Nc6 7.b5 ab5 8.Bb5 Bd7 9.Qc1 =+.

6.Be2 cb4 7.ab4 Bb4 8.0–0 b5 (better is 8...Nc6!?+=) 9.Bb5+= Nbd7 10.Be2 Qc7 11.c3 Bd6 12.Na3 Bb7 13.d4 Rc8 (13...0–0!?=) 14.Rc1+= 0–0 15.c4 Qb8 16.c5 Be7 17.Qc2 Rc6 18.Rb1 Rfc8 19.Qd2 h6 20.Nc2 Qa7 21.Bc3 (21.Bd3!?+/–) 21...Ne4+= 22.Qe1 Nc3 23.Qc3 Nc5 24.dc5 Rc5 25.Qb3 Rc2 26.Qb7 Qb7 27.Rb7 Re2 28.Re7 Ra2 29.Ne5 f6? (better is 29...Rf8!?+/–) 30.Ng6+– Kh7 31.Nf4 e5 32.Nd5 Kg6 33.Rb7 Rc5 34.Nc7 Kf5 (34...Rc6 35.Ne8 h5 36.Rg7 Kh6 37.h4+–) 35.Ne8 g6 (35...Rc6 36.Rg7 Ke4 37.h3+–) 36.Ng7 (better is 36.f3 Rb5 37.Nd6 Ke6 38.Nb5 ab5+–) 36...Ke4 37.Rd7 a5 (37...Rcc2+–) 38.Re1 Re2 39.Kf1 (better is 39.Red1 Re3 40.fe3+–) 39...Re1 40.Ke1 g5 (40...Rc2+–) 41.Rd2 Rc7 (41...Rd5 42.f3 Ke3 43.Rd5 a4 44.Nf5 Kf4 45.Nh6 g4 46.Ng4 Kg5+–) 42.Nh5 (42.Ke2 Rg7 43.g4 a4 44.f3) 42...Kf5 43.f3 (43.Rd6 g4+–) 43...Kg6 (43...Ke6 44.Rb2 Rc6 45.Ng7 Kd5 46.Ra2+–) 44.Ng3 (44.g4 a4+–) 44...Rc6 45.e4 Kf7 (45...h5 46.Nf5 Rc7 47.Rd8+–) 46.Nf5 h5 47.Rd7 Ke8 48.Re7 Kd8 49.Rh7 h4 50.Ra7 Rc1 51.Kd2 Ra1 (51...Rf1 52.Ke2 Ra1 53.Ne3+–) 52.Ne3 Ra2 (52...a4 53.h3+–) 53.Nc2 Ke8 54.h3 a4 (54...Rb2 55.Ra5 Kf7 56.Kc3+–) 55.Kc3 (better is 55.Kc1 a3 56.Rb7 Kd8+–) 55...a3 (55...Kf8+–) 56.Ra3 Ra3 57.Na3 Ke7 58.Nc4 Ke6 59.Ne3 Kd6 60.Kc4 Ke6 61.Kc5 Kd7 62.Kd5 Ke7 63.Kc6 Ke6 64.Nd5 f5 65.ef5 Kf5 66.Kd6 e4 67.fe4 Ke4 68.Ke6 Kd4 (68...Kd3 69.Kf5 Ke2 70.Kg5+–) 69.Kf5 Kd5 (69...Kc5 70.Kg5 Kd6 71.Kh4 Ke6+–) 70.Kg5 Ke5 71.Kh4 Kf5 72.g4 Kg6 73.Kg3 Kg5 (73...Kf6 74.Kf4 Kg7 75.h4 Kf6 76.Ke4 Kg6 77.Kf3 Kf7 78.g5 Kf8 79.Kf4 Kg8 80.Ke4 Kh8 81.h5 Kg7 82.Kf5 Kg8 83.h6 Kf7 84.g6 Ke7 85.h7 Kd6 86.h8Q Kc6 87.g7 Kc5 88.g8Q Kb5 89.Qd5 Kb4 90.Qh3 Ka4 91.Qhb3) 74.h4 Kg6 75.Kf4 White plans g5 75...Kf6 (75...Kg7 76.Kf5 Kg8 77.h5 Kg7 78.g5 Kf7 79.h6 Kf8 80.g6 Ke7 81.h7 Kd6 82.h8Q Kc7 83.g7 Kb6 84.g8Q Kb5 85.Qd5 Kb6 86.Qg7 Ka6 87.Qgb7) 76.g5 Kg6 77.Kg4 Kg7 78.h5 Kf7 (78...Kh7 79.Kf5 Kh8 80.Kf6 Kg8 81.g6 Kf8 82.g7 Ke8 83.g8Q Kd7 84.h6 Kd6 85.Qc4 Kd7 86.Qc5 Kd8 87.Ke6 Ke8 88.Qe7) 79.Kf5 White intends g6 79...Kg7 (79...Ke7 80.h6 Kf7 81.g6 Ke7 82.h7 Ke8 83.h8Q Ke7 84.g7 Kd7 85.g8Q Kc6 86.Qc4 Kb6 87.Qg7 Ka5 88.Qgc7) 80.h6 Kh7 (80...Kf7 81.g6 Ke7 82.h7 Kd6 83.g7 Kc5 84.g8Q Kb5 85.Qd5 Kb6 86.h8Q Ka7 87.Qb2 Ka6 88.Qbb7) 81.Kf6 Kg8 82.g6 Kh8 (82...Kf8 83.g7 Ke8 84.g8Q Kd7 85.Qc4 Kd6 86.h7 Kd7 87.h8Q Kd6 88.Qd8) 83.g7 Kg8 84.Ke7 Kh7 85.Kf7 1–0. cristero (2355) – ekosachro (2390), net–chess.com, 2015.

6.Be2 cb4=+ 7.ab4 Bb4 8.Ra4 a5 9.c4 (9.Nc3 0–0=+) 9...0–0 10.Nd4 dc4 11.Bc4 Ne4 (11...e5 12.Nc2 Bd6 13.Nc3–/+) 12.0–0 (12.Qg4 Nf2 13.Kf2 Qf6 14.Qf4 Qf4 15.ef4 Bd7+=) 12...Nc6 (12...Bd7 13.Ra1–/+) 13.Nb5 (better is 13.Nc6 bc6 14.Qg4=+) 13...Qd2?? (13...Nd2 14.Nd2 Qd2 15.Qa1–/+) 14.Qd2 (better is 14.Nd2 Nd2 15.Rb4+–) 14...Nd2–+ 15.Nd2 Bd2 16.Rd1 Bb4 (17.Nc7 Rb8–+) 0–1. b4_player (1870) – matest (1735), GameColony.com, 2002.

6.bc5 Bc5

7.Nc3 0–0 8.Be2 Nc6 9.0–0 Bd6 10.Rb1 b5 11.a4 =+.

7.Nc3 0–0 8.h3 Nbd7 9.Be2 b5 10.0–0 Ba7 11.Na2 Bb7 12.a4 ba4 13.Nc3 Nc5 14.Na4 Na4 15.Ra4 Bc5? (better is 15...Ne4 16.d3 Nc5) 16.Qa1 Be7 17.Bc3 Qc7 18.Rb1 Rfb8 19.Be5 Bd6 20.Bf6 gf6 21.Rg4 Kf8 22.Qf6 Be7?? 23.Qh8 1–0. Wall,Bill – Guest1573546, playchess.com, 2012.

7.c4 Qb6 8.Qc2 (8.Bf6 gf6 9.cd5 ed5+/–) 8...0–0 (8...Nbd7 9.d4 Bd6 10.c5+=) 9.cd5 (9.Bf6!? gf6 10.cd5+/–) 9...ed5= 10.d4 Bd6 11.Bd3 g6 12.0–0 Bg4 13.Nbd2 Nbd7 14.h3 Rfc8 15.Qb1 Bf3 16.Nf3 Ne4 17.Be4 de4 18.Nd2 Nf6 19.d5 Nd5 20.Ne4 Be7 21.Bd4 (21.Rd1 Rd8=) 21...Qe6 22.Ng3 Nc3 (22...b5!?=) 23.Qb7+= Rcb8 24.Qf3 Nb5 25.Ne2 (25.Bb2 Nd6+/–) 25...Na3 26.Nf4 Qf5? 27.g4?? Qb5?? 28.Nd5+– Bd6 29.Qf6 Kf8 30.Qd6 Kg8 31.Qf6 Kf8 32.Qe7 Kg8 33.Nf6 Kh8 34.Nd7 Kg8 35.Qf6 (35.Qf6 Qf1 36.Rf1 Rb2 37.Qg7) 1–0. Fournier,Frederic (1800) – queenorfloyd (1785), Active (4/4), 2004.

7.c4 Nc6 8.Qc2 (8.d4 Be7 9.cd5 ed5 10.Bd3=) 8...h6 (8...d4!?+=) 9.cd5+= Qd5 10.Nc3 (10.Bc4 Qd8+=) 10...Qd8 11.Be2 (11.d4 Bd6+=) 11...Be7 (11...e5 12.Ne5 Ne5 13.d4+=) 12.0–0+= 0–0 13.d4 b6 14.Rfd1 (14.Rad1 Bb7=) 14...Bb7= 15.Rac1 (15.Bd3 b5=) 15...Rc8 16.Qb1 (16.e4 Na5 17.Qb1 Nc4 18.Bc4 Rc4=) 16...Nd5 (16...Na5 17.e4=) 17.Qe4 (17.Nd5 Qd5 18.e4 Qd6+=) 17...Nc3 (17...Na5 18.Bd3 Nf6=) 18.Bc3 (18.Rc3 Qd5 19.Qd5 ed5=) 18...Qd5 (better is 18...Ba3!? 19.d5 ed5–/+ (19...Bc1 20.dc6 Bc6 21.Qg4+/–)) 19.Qd5= ed5 20.Bb2 (20.a4 Rfe8=) 20...a5 (20...Na5 21.Rc3+=) 21.Rd2 (21.Rc3 Rfe8+=) 21...Na7= 22.Rdc2 Rc2 23.Rc2 Rc8 24.Rc8 Bc8 25.Ne5 f6 26.Ng6 Bd6 27.Bd3 Bd7 28.Nh4+= Nb5 Attacking the isolated pawn on a3 29.Nf5 Bf8 30.Bb5 Bb5–/+ 31.f3 Bd3 32.Ng3 Bd6–/+ 33.Kf2 Kf7 34.h3 Bg3 35.Kg3+= b5 36.Bc3= a4 37.Bb4 g6 38.h4 h5 39.Kf4 Bf1 40.g3+= Ke6 41.Bc5 (41.e4 Bc4+=) ˝–˝. Berea de Montero,Maria – De Castro Rubio,Dora, Rio de Janeiro zt (Women), 1957.

7.c4 Bd6 8.cd5 Nd5 (8...ed5 9.Bf6 Qf6 10.Nc3=) 9.Nc3 (better is 9.e4!? Ne7 10.Bg7+/–) 9...Nc3= 10.Bc3 0–0 11.Be2 Qe7 12.0–0 Ba3 13.d4 Nc6 14.Bd3 b5 15.Qc2 Bb7 (15...h6!?+=) 16.Bh7= Kh8 17.Bd3 b4 18.Bb2 Bb2 19.Qb2 a5 20.Rfc1 Rfc8 21.Ne5 (21.Qb3 Qf6+=) 21...a4 22.Nc6 Bc6 (22...Rc6 23.Rc6 Bc6 24.Rc1+=) 23.Rc5 a3?? (better is 23...Qb7=) 24.Qb4+– a2?? (24...Qa7 25.Rh5 Kg8 26.Bh7 Kh8 27.d5+–) 25.Qd2 Qb7 26.Ra2+– Bg2? 27.Ra8?? Ra8+/– 28.Rc1 Bh1 29.f4 Bf3 30.Be2 Bd5 31.Bd3 Qe7 32.Qf2 f5 33.Be2 Ra2 34.Re1 Bc4 35.Kf1 Kg8 36.Qg3 Bd5 37.Bf3 Bc4 38.Be2 Qb4 39.Bc4+= Qc4 40.Kg1 Qc2 0–1. Fournier,Frederic (2340) – GustavoRoyet (2125), Active (2/2), 2002.

7.d3 0–0=+ 8.Nbd2 Bd7 9.Be2 Ba4 10.Nb3 Bd6 11.0–0 Nbd7 12.h3 Rc8 13.Qd2 Qe7 14.Nfd4 Nc5 15.Rfc1 Bd7 16.Nc5 Rc5 17.Nb3 Rcc8 18.f4 Rfd8 19.Bf3 Bc6 20.Qf2 Nd7 21.Nd4= Nc5 22.Qg3 g6 23.Nc6 bc6 24.a4 Nd7 25.Qe1 e5 26.Qd2 Qh4 27.Qc3 d4 ˝–˝. Valenta,Vit – Lovas,Miroslav, Stare Mesto op, 2003.

7.d4 Qa5?? 8.Nbd2?? (better is 8.Bc3 Qc7 9.dc5+–) 8...Be7 9.Bd3 Bd7 10.0–0 Bc6 (10...b5 11.e4=) 11.c4+= Nbd7 12.c5 Rc8 13.Qb3 Qc7 14.Rfb1 a5 15.a4 b6 16.cb6 Nb6 17.Bc3 Bb4? (better is 17...Nbd7+=) 18.Bb4+– ab4 19.Qb4 Rb8 20.Bb5 Nbd7?? 21.Qa3 Bb5 22.ab5 Qb6 23.Qa6 0–0 24.Ne5 Ra8? 25.Qb6 Nb6 26.Nb3 Ne4 27.Nc6?? Nc3+= 28.Rc1 Ne2 29.Kf1 Nc1 30.Rc1 g6 31.Nc5 Kg7 32.Nb4 Rfc8 33.Nba6= Nc4 34.Rb1?? e5 35.Rb4 ed4 36.ed4 Nb6 37.Rb2 Re8 38.Re2 Re2 39.Ke2 Kf6 40.Kd3 Ke7 41.Nb7 Kd7 42.Na5 Kd6 43.Nb7 Kd7 44.Nbc5 Kd6 45.Nb7 Ke7 46.Nbc5 Re8 47.Nc7 Rc8 48.N7a6 Kf6 49.Nb4 Re8 50.Nc6 Re1 51.Ne5 Rb1–/+ 52.Ned7 Nd7–+ 53.Nd7 Ke6 (53...Ke6 54.Nf8 Kf5 55.Nh7 Rb5–+) 0–1. Fournier,Frederic (2005) – peondamate (2015), Echecs21 (5/0), 2003.

7.d4 Ba7 8.c4 dc4 9.Bc4 Nc6 10.0–0 0–0 11.Nc3 Bd7 12.Rc1 Na5 13.Ba2 Rc8 14.Qd2 Nc4 15.Bc4 Rc4 16.Qd3 Rc7 17.Ne5 Qe7 18.Nd7 Qd7 (18...Nd7? 19.Nd5 Qd6 20.Nc7+– (worse is 20.Rc7 Bb8 21.Rfc1 ed5 22.Rb7 Qh2 23.Kf1 Qd6+–); 18...Rd7?! 19.Ne4=) 19.Ne4 Ne4 20.Qe4 Rfc8 21.Qb1 Qd5 22.Rc7 Rc7 23.Rc1 Rc6 24.Rc6 Qc6 25.Qc1 Kf8 26.Qc6 bc6 27.Kf1 Ke7 28.Ke2 Kd6 29.Kd3 Kd5 30.e4 Kd6 31.Kc4 g6 32.f3 c5 33.a4 (33.d5!?+/–) 33...cd4= 34.Bd4 Bd4 35.Kd4 f6 36.f4 h5 37.h4 e5 38.fe5 fe5 39.Kc4 Kc6 40.Kb4 Kb6 41.a5 Kc6 42.Kc4 Kd6 43.g3 Kc6 44.Kb4 Kd6 45.Kc4 Kc6 46.Kb4 Kd6 47.Kc4 ˝–˝. Fournier,Frederic (1955) – agen3, Active (3+2), 2009.

7.d4 Qb6 8.Qc1 Be7 9.c4 Nc6 10.c5 Qc7 11.Nc3 b6 12.Na4 bc5 13.Nc5 0–0 14.Bd3 Qb6 (14...Rb8 A) 15.Ba6? Bc5 16.Bc8 Bd6–+ (16...Rfc8?! 17.dc5 Ne4 18.0–0+=); B) 15.Na6?? Ba6 16.Ne5 Rfc8–+; C) 15.Rb1=) 15.0–0+= Na5 16.Rb1 (16.Qc2 Nb7 17.Rfc1 Qd6+/–) 16...Nb3+= 17.Nb3 Qb3 18.Bc2 Qc4 19.Ne5 Qc7?? (19...Qb5 20.a4 Qe8 21.Ba3+/–) 20.Bd3 (better is 20.Bh7 Kh7 21.Qc7+–) 20...Qc1 21.Rfc1 Bd6 22.Rc6 Be5 (22...Rd8!?+/–) 23.de5 Nd7 24.Bd4 a5 25.Kf1 Rb8 26.Rb8 Nb8 27.Rc5 a4 28.Bb5 Bd7 29.Bd7 Nd7 30.Ra5 Rc8 31.Ra4 Kf8 32.Ra7 Ke8 33.a4 Kd8 34.a5 Rc7? (better is 34...f6 35.Bb6 Ke8 36.ef6 Rc1 37.Ke2 gf6 38.Ra8 Ke7+–) 35.Bb6 Nb6 36.ab6 Rc8 (36...Rc1 37.Ke2 Rb1 38.Rf7 Rb6 39.Rg7 Rb2 40.Kf3+–) 37.Rf7 Rc1 38.Ke2 Rb1 (38...Kc8+–) 39.b7 (worse is 39.Rg7 Rb6 40.Rh7 Rb2 41.Kf3 Rb4+–) 39...g6 40.Rh7 Rb2 41.Kf3 1–0. Adamczyk,Robert – Trepczyk,Adrian, Polanica Zdroj op–D Poland, 2007. (=1.a3 d5 2.b4 e6 3.Bb2 Nf6 4.e3 a6 5.Nf3 c5 6.bc5 Bc5)

7.d4 Bb6 8.c4 Ba5 9.Nbd2 Bd2 (9...0–0 10.cd5 ed5 11.Bd3=) 10.Qd2 (worse is 10.Kd2 Qa5 11.Kc1 dc4 12.Bc4 b5=) 10...Ne4 11.Qc2 0–0 12.cd5 (12.Bd3 f5+=) 12...Qd5 (12...ed5!? 13.Bd3 Re8+=) 13.Bd3+/– Nf6 14.0–0 Nc6 15.Rac1 Bd7 16.Ne5 Ne5 (16...Rfd8!? 17.e4 Qa5 18.Nc6 Bc6+/–) 17.de5+– Ng4 (17...Bc6!? 18.f3 Nd7 19.Bh7 Kh8+–) 18.Bh7 Kh8 19.Be4 Qb5 20.Bf3 Nh6 21.Rfd1 Bc6 22.Bc6 bc6 23.Bd4 Nf5 24.Qc6 Qc6 25.Rc6 Rfc8 26.Rcc1 Rc1 27.Rc1 g6 28.Rc7 Kg7 29.Bc5 a5 30.g3 a4 31.Kg2 Nh6 32.Ra7 Rc8 33.Bb4 Rc2? 34.Ra4 g5 35.h3 Kg6 36.Bd6 Nf5 37.g4 Ne3 38.Kf3 Nd5 39.Ra8 Rc3 40.Kg2 Nf4+/– 41.Kf1?? Nh3 42.a4 Rc2 43.Kg2 Nf4 44.Kg3 Nd5 45.a5+– Ra2 46.a6 Nb6 47.Ra7 Nc4 48.Rc7 Nd6+= 49.ed6 Ra6 50.d7 Rd6 51.f3 Kf6 52.f4 gf4 53.Kf4 Ke7 54.d8Q+= Kd8 55.Rf7 Ke8 56.Ke5 Kf7 57.Kd6 Kf6 58.Kc5 Kg5 59.Kd6 Kg4 60.Ke6 ˝–˝. Fournier,Frederic (1990) – bmquintas (1775), Active (5/0), 2005.

7.d4 Be7 8.c4 dc4 9.Bc4 b5 10.Bd3 Bb7 11.0–0 0–0 12.Nbd2 Nbd7 13.Qe2 Nb6 14.e4 Na4 15.Rfb1 Nb2 16.Rb2 h6 17.h3 Nd7 18.a4 b4 19.a5 Re8 20.Nc4 Nb8 21.Nfe5 (21.Nb6 Ra7=) 21...Nc6 Attacks the isolani on a5 (21...Qd4!? 22.Qh5 Rf8+=) 22.Nb6= Ne5 23.de5 Ra7 24.Qe3 Bg5 25.f4 Bf4 26.Qf4 Qd3 27.Rb4 Bc6 28.Rc1 Bb5 29.Nc8 Rd7 30.Nd6 Ra8 31.Rb2 (31.Qf3 Qd2 32.Qc3 Qg5+=) 31...Qd4= 32.Rf2 Qa7? (better is 32...Rf8!?=) 33.Nc8+/– Qb7 34.Nb6 Rd4? (better is 34...Rad8 35.Nd7 Rd7+–) 35.Na8 Re4 (35...Qa8 36.Qf7 Kh7+–) 36.Rc7 Rf4 37.Rb7 Rf2 38.Kf2 (38.Kf2 Bd3 39.Nc7+–) 1–0. Drljevic,Ljilja – Alev,Gonulden Seda, Gaziantep TUR, European Women Ch, 2012. (=1.Nf3 d5 2.b4 a6 3.Bb2 e6 4.a3 Nf6 5.e3 c5 6.bc5 Bc5)

7.d4 Be7 8.c4 dc4 9.Bc4 Qb6 10.Qb3 Qb3 11.Bb3 0–0 12.Nbd2 Bd7 13.0–0 Nc6 14.Nc4 b5 15.Ncd2 Rac8 16.Rfc1 Na5 17.Bd1 Bc6 18.Ne5 Bd5 19.f3 Nc4 20.Nec4 Bc4 (worse is 20...bc4 21.e4+/–) 21.Nc4 Rc4 22.Be2 Rcc8 23.e4 Rfd8 24.Rc8 Rc8 25.Rc1 Rc1 26.Bc1 Ne8 27.Kf2 Nd6 28.Ke3 Kf8 29.Bd2 Ke8 30.Bb4 Kd7 31.Bd6 (better is 31.Bd3!?+=) 31...Bd6+= 32.a4 b4 (better is 32...ba4!? 33.f4 Ba3+=) 33.Ba6 Kc7 (33...Bh2 34.Bb5 Ke7 35.Kd3+=) 34.Kd3 (34.e5!? Be7 35.Bc4+/–) 34...Kb6+= 35.Bb5 Bh2 36.e5 1–0. Fournier,Frederic (1980) – tenesse (1860), Echecs21, 2003.

7.d4 Be7 8.Nbd2 0–0 9.Bd3 Bd7 10.a4 Nc6 11.c4 Nb4 12.Be2 Rc8 13.c5 Nc6 (13...b6!?+=) 14.Bc3 Qc7 15.Bd3 Ne8 16.Rb1 f5 17.Rb6 Nf6 18.Qb3 Rb8 19.0–0 Ne4 20.Rb1 Nc3 21.Qc3 Bf6 22.Qb2 Bc8 23.Ba6! e5 (23...ba6 24.Rb8 Pinning (24.Rb8 Deflection)) 24.Bb5 ed4 25.ed4 Nd4 26.Nd4 Qc5 27.Rf6! Rf6 (27...Rf6 28.Re1 Combination; 27...gf6 28.N2b3 Combination) 28.Re1 Qd6 29.Qc2 Bd7 30.N2f3 Rc8 31.Qd3 g6 32.g3 (32.a5 Bb5 33.Qb5 Rf7+/–) 32...Rff8 33.Rd1 Rfd8 34.Qe3 Re8 35.Qg5 Bb5 36.ab5 Qe7 37.Qd2 Qc5 38.Kg2 Qc3 (better is 38...Qb6!?+/–) 39.Qg5+– Rf8 40.Ne6 Rf6 (40...Rfe8 41.Nf4 Qg7 42.Nd5+–) 41.Rc1!! (41.Rc1 Qc1 42.Qf6+–) 1–0. Muratoglu,Salih – Erim,Engin, Istanbul TUR, Open, 2013.

7.Bd4 Bd4 8.ed4 0–0 +=.

7.Be2 0–0 8.0–0 Nc6 9.Ne5 Ne5 10.Be5 b6 11.d4 =.

7.Be2 0–0 8.a4 Bd6 9.0–0 =.

7.Be2 Nc6 8.0–0 b5 9.d3 Bd6 10.c4= bc4 11.dc4 Qe7 (better is 11...Rb8!? 12.Qc2 0–0=) 12.cd5+/– ed5 13.Bf6 gf6? (13...Qf6 14.Nc3 Qc3 15.Qd5 A) 15...Ba3?? 16.Ra3 Ne7 17.Bb5 (17.Rc3?! Nd5 18.Rc5 Ne7+/–) 17...ab5 18.Qb5 (18.Rc3? Nd5 19.Rc5 Be6–+; 18.Qa8?! Qc4+–) 18...Qc6 19.Qc6 Nc6 20.Ra8+–; B) 15...Be7+/–) 14.Nc3+– Be6? (better is 14...0–0+–) 15.Nd5 Bd5 (15...Qd8 16.Nf6! Kf8 17.Ne4+–) 16.Qd5 Qd7 (16...Kd7 17.Bd3 Rhd8 18.Rfc1+–) 17.Qe4 Kf8 18.Rfc1 Rc8 19.Ba6 Rc7 (19...Ne7 20.Bc8 Nc8 21.Rab1+–) 20.Bb5 Kg7 (20...Qe7 21.Bc6 (worse is 21.Rc6 Qe4 22.Rd6 Rg8–/+) 21...Qe4 22.Be4 Rc1 23.Rc1 Ba3 24.Rc7+–) 21.Rc6 Rc6 22.Bc6 Qe7 (22...Qe6 23.Nd4 Qe4 24.Be4+–) 23.Qg4 Kf8 24.Qh5 Kg7 (24...Qe6+–) 25.Nd4 h6 26.Nf5 1–0. pierred – anony, internet, 2014.

7.Be2 Nc6 8.0–0 d4 9.h3 (9.ed4 Nd4 10.Nd4 Bd4 11.Bd4 Qd4=) 9...b5 (9...e5!?+=) 10.ed4= Nd4 11.Nd4 Bd4 12.c3 Bb6 13.Bf3 Rb8 14.a4 0–0 15.Ba3 Re8 16.ab5 ab5 17.Kh1 (17.d4!?=) 17...Bb7 18.Bb7 Rb7 19.Qf3 Qd5 20.Qd5 ed5 21.g3? (21.Bb4 Ne4 22.d4 Bc7=) 21...Re2 (better is 21...Ra7!?–+) 22.Bb4–/+ h6 (22...Bf2? 23.Ra8 Re8 24.Re8 Ne8 25.Rf2+–) 23.Kg2 Ne4 f2 becomes the focus of attention. Exerts pressure on d2 24.d4 Rb2 25.Ra8 Kh7 26.Na3 (better is 26.Ba3!? Ra2 27.Rc8–/+) 26...Bd4!–+ 27.cd4 Rb4 28.Nc2 Rc4 29.Ra2 b4 30.Rb2 b3 31.Ne3? (better is 31.Na1 Ra4 32.Rb3–+) 31...Rd4 32.Rfb1 Rd3 33.g4 Nc5 34.Kf1 (34.Ra1–+) 34...Na4 35.Ke2 Nb2 36.Rb2 Rc3 37.Kd2 Rbc7 (better is 37...d4 38.Nf5 Rh3 39.Ng3–+) 38.f4 (38.Rb1 d4 39.Nd5 R7c5 40.Nc3 dc3 41.Kc1 Rb5–+) 38...d4 39.Nd5 (39.Nd1 Rh3 40.Nf2 Rf3–+) 39...Rc2 40.Rc2 Rc2 41.Kd3 Rc5 (41...Rc5 42.Kd4 Rd5 43.Kd5 b2–+) 0–1. Macedo,A Soares De (1955) – Palhano,Fabson Barbosa, 3rd Championship Paraibano Aberto Absol, 2011.

7.Be2 Nbd7 8.0–0 (8.d4 Bd6 9.Nbd2 b5 10.a4 b4 11.c4 bc3 12.Bc3 Rb8 13.0–0=) 8...0–0 9.d4 (9.a4 Qb6 10.Ba3 Ba3 11.Ra3 e5 12.d4 e4 13.Nfd2=) 9...Be7 10.Nbd2 (10.a4 Ne4 11.Nbd2 b6 12.c4 Bb7 13.Ne4=) 10...b5 11.a4 ba4 (11...b4 12.c3 a5 13.cb4=) 12.c4 (12.Ba3 Bb7 13.Be7=) 12...dc4 (12...Bb7 13.Qa4=) 13.Nc4 Nb6 14.Na5 Bd7 15.Ne5 Bb5? (better is 15...Qe8=) 16.Nac6+– Qe8 17.Ne7 Qe7 18.Ba3 Qd8 19.Bf8 Qf8 20.Bd3 Qe8 ˝–˝. Kwilecki,Andrzej – Salamon,Jan, Rubinstein Polanica Zdroj Poland, 2010. (=1.Nf3 Nf6 2.b4 e6 3.a3 c5 4.bc5 Bc5 5.e3 a6 6.Bb2 d5)

7.c4 0–0

8.Qc2 Be7 9.Be2 Nbd7 10.0–0 dc4 11.Bc4 b5 12.Be2 Bb7 13.d4 Rc8 14.Qd1 Nb6 15.Nbd2 Na4 16.Qb1 Qd5 17.Bd3 Qh5 18.h3 Nd5 19.Ne4 Qh6 20.Rc1 f5 21.Nc5 Nc5 22.dc5 Bc5 23.Bd4 Bd4 24.ed4 Nf4 25.Ne1 Qg5 (25...Nd3?! 26.Rc8 Rc8 27.Qd3–+) 26.Bf1 (26.Rc8 Rc8 27.h4–+) 26...Nh3 27.Kh2 Nf2 28.Rc8 (28.Kg1 Qe3 29.Qb3 Qb3 30.Kf2 Qb2 31.Nc2 Rc2 32.Rc2 Qc2 33.Be2–+) 28…Ng4 (28...Ng4 29.Kg1 Qe3 30.Kh1 Qh3 31.Kg1 Qh2 mate) 0–1. Moraes,Maurino AD (1735) – Caetano,Hugo ZM (2045), Foz do Iguacu BRA, 2nd Open, 2012.

8.Nc3 Nc6 9.Be2 (9.d4 Be7=) 9...Bd6 10.cd5 Nd5 11.Nd5 ed5 12.0–0 Qc7 13.h3 Bf5 14.Rc1 Rac8 15.Nd4 Be6 (15...Be5 16.Nf5 Bb2 17.Rc5+=) 16.Nc6 bc6 17.Ba6 Ra8 18.Bb5 The backward pawn on c6 becomes a target (better is 18.Bd3+=) 18...Qb6–/+ Attacks the isolani on a3 19.Bc6 Qb2 20.Ba8 Ra8 21.a4 Bb4 22.d4 Bf5 23.Qf3 Be6 24.Rb1 Qc3 25.Rfc1 Qd2 26.Rd1 Qc3 27.Rdc1 Qd2 28.Rd1 Qc3 29.Rdc1 ˝–˝. Fournier,Frederic (1970) – wolfie (1905), Active (5/0), 2005.

8.d4 Be7 9.cd5 ed5 10.Bd3 Nc6 11.Nbd2 h6 12.0–0 Qb6 13.Qc2 Re8 14.Rfc1 Bd7 15.Nb3 Rac8 16.Nc5 Qa7 (16...Bg4!?+=) 17.Nd7+/– Nd7 18.Bf5 Rc7 19.Ne5 Nde5 20.de5 Bd8 21.e6 (better is 21.Qd2!?+/–) 21...fe6= 22.Bh7 Kf8 23.Rab1 Ne5?? (better is 23...b5=) 24.Qc7+– Bc7 25.Rc7 Nf7?? (better is 25...Re7 26.Re7 Ke7 27.Be5 g5+–) 26.Bd4 (26.Bd4 Qd4 27.ed4+–) 1–0. Fournier,Frederic (2510) – Feudevorant (1930), Echecsemail.com (Defi), 2011.

8.cd5 Nd5 9.Qc2 Be7 10.Bd3 f5 11.g4 (11.e4 Nf4 12.Bf1 b5+=) 11...Nc6 (11...b5 12.Rg1+=) 12.gf5 Ndb4! 13.ab4 Nb4 14.Qc3 Nd3 15.Ke2 Nb2 16.Qb2 Bf6 (16...ef5 17.Qb3 Kh8 18.Ne5–+) 17.Nc3 (17.d4 ef5 18.Rd1 Be6–+) 17...ef5 18.h4 (18.Qb3 Kh8–+) 18...b5 19.Rag1 (19.Qb3 Kh8–+) 19...Be6 20.Rh2 (20.d4 f4–+) 20...Bc4 21.Ke1 Qe7 (21...Bd5 22.Rh3–+) 22.Qc2 (22.d4 b4 23.Ne2 Bd5–+) 22...Rad8 (22...b4 23.Ne2 Qe4 24.Nfd4 Qc2 25.Nc2–+) 23.Ng5 (23.d4 f4 24.Ne4 fe3 25.fe3 Kh8–+) 23...Bd3 (23...b4 24.Nce4 Rc8 25.Nf6 Rf6 26.d3–+) 24.Qa2 Bc4?? (24...Kh8 25.Qa6 Qc7 26.Nf3–+) 25.Qc2 h6 26.Rgh1? Rd3 27.Nd5 Rd5 28.Nh3 Be5 29.f4 Bf6 30.Nf2 Rfd8 31.Nd1 Bd3 32.Qa2 Kh7 33.Rg1 Bh4 34.Nf2 Be4 35.Qa6 R8d6 36.Qa1 Bf6 37.d4 Rd4! 38.ed4 Bd3 (38...Bd3 39.Ne4 Qe4 40.Kd2 Bd4 41.Rg7 Bg7 42.Qe5 Be5 43.fe5 Qf4 44.Kc3 b4 45.Kb3 Qc4 46.Kb2 Qc3 47.Ka2 Ra6#) 0–1. Collins,G – Durret,Claude, Paris op, 1993.

8.Be2 Nc6 9.d4 Be7 10.0–0 dc4 11.Bc4 b5 12.Bd3 Bb7 13.Nbd2 Rc8 14.Rc1 Nd5 15.e4 (15.Nb3 f5=) 15...Nf6 16.e5 Nd5 17.Ne4 Nf4 18.Bb1 f5 19.Nc5 (better is 19.ef6!? Bf6 20.Re1=) 19...Bc5–/+ 20.Rc5 Nd5 (better is 20...Nd4 21.Bd4 Bf3 22.Rc8 Bd1 23.Rd8 Ne2 24.Kh1 Rd8–/+) 21.Ba2= Nce7 22.Qc2 Qd7 23.Rc1 Rc5 24.dc5 Rc8 25.Qd2 Qc6 26.Nd4 Qd7 27.f4 Nc6? (27...Rc7!?+=) 28.Nf5! ef5? (28...Rf8!? 29.Ne3 Nce7+/–) 29.Bd5 (29.Qd5 Qd5 30.Bd5 Kf8+–) 29...Kf8 (29...Kh8 30.e6 Qe8 31.Qd3+–) 30.e6 Qe7 (30...Qe8 31.Qd3 Qg6 32.e7 Ke8 33.Re1 Ne7 34.Bb7 Rc5 35.Qd4+–) 31.Qe3 (31.Qd3!? Na5 32.Qf5 Kg8+–) 31...Nd8 32.Bb7 Nb7 33.Bd4 Rc6 34.Re1 Nd8 35.Qe5 Re6 36.Qf5 Ke8 37.Re5 Re5 38.fe5 (38.Be5?! Qc5 39.Kf1 Qa3 40.Bg7 Qd6=; 38.Qe5?! Qe5 39.Be5 g6+/–) 38...g6 39.Qf3 a5 (39...Qe6 40.h3+/–) 40.Qb3+– Qd7 (40...Ne6 41.Qb5 Qd7 42.Qd7 Kd7+/–) 41.Qg8 Ke7 42.Qh7 Nf7 43.Qh4 (43.Qh4 g5 44.Qe4+–) 1–0. alaamattar (2265) – pushtiu (2120), net–chess.com, 2014.

7.c4 dc4

8.Bc4 0–0 9.0–0 b5 10.Be2 (10.d4 bc4 11.dc5 Bb7=) 10...Bb7 11.Nc3 Nbd7 12.d4 Be7 13.Nd2 e5 14.Bf3 Bf3 15.Nf3 ed4 16.Nd4 Qb6 (16...Rc8 17.Qf3=) 17.Nf5 Qe6 18.Ne7 Qe7 19.Nd5 Nd5 20.Qd5 Rfd8 21.Bd4 Nf8 22.Qa2 (22.Qc6 Ne6=) 22...Qe6 (22...Ne6!?+=) 23.Qb2= f6 24.a4 ba4 25.Ra4 Rdb8 26.Qe2 Rc8 27.Rfa1 Nd7 28.h3 (28.Ra6?? Ra6 29.Rb1 Ra2–+) 28...Rc6 29.Ra5 g6 30.Qf3 Re8 31.g4 Rec8 32.Kg2 Re8 33.h4 Ne5 (33...Rd6 34.h5+=) 34.Be5+/– fe5 35.Re5! Qe5 36.Qc6 Qa1 (better is 36...Qe6!? 37.Qf3 Qc4+/–) 37.Qe8+– Kg7 38.Qd7 Kg8 39.Qd5 Kg7 40.e4 a5 (40...Qf6 41.Qd7 Kg8 42.Qe8 Kg7 43.f3+/–) 41.e5 Qe1?? (better is 41...Qa4 42.Kg3 Qb4 43.Qd7 Kf8 44.Qh7 Qc3 45.Kg2 Qe5 46.Qg6 a4+–) 42.e6 Kf8 (42...Qb4 43.Qd7 Kf6 44.g5 Ke5+–) 43.g5 (43.Qd8 Kg7 44.Qe7 Kg8 45.Qf7 Kh8 46.Qf8) 43...Qc3 44.Qd8 1–0. Ivanets,Vladimir (2185) – Zemliakov,Igor (1980), Moscow Open E, 2011.

8.Bc4 0–0 9.d4 =.

8.Bc4 b5 9.Bb3 Bb7 10.d4 Bd6 11.Nc3 0–0 12.0–0 Nbd7 13.Qe2 Ne4 14.Ne4 Be4 15.Nd2 Bb7 16.f4 Rc8 17.Qg4 White plans f5 (17.a4 b4=) 17...Nf6 18.Qg3 Be7 19.f5 Bd5 20.fe6 fe6 (20...Be6 21.d5 Kh8 22.Ne4+/–) 21.e4 Bc4 22.Rac1 Bc5? (better is 22...Bb3 23.Qb3 Qd7=) 23.Nc4+– bc4 24.Rc4 (24.dc5?! cb3 25.Qb3 Qe7+–) 24...Ne4 25.Rf8 Qf8 (better is 25...Bf8 26.Rc8 Qc8+–) 26.Qe3 (26.Rc5?! Rc5 27.Be6 Kh8=) 26...Rb8 27.dc5 (better is 27.Rc2 Qd6 28.Qe4 Bd4 29.Bd4 Rb3 30.Rc8 Kf7 31.Rc6 Rb1 32.Kf2+– (32.Qb1?! Qc6 33.Qd3 Qd5+–)) 27...Rb3+/– 28.Qe4 Rb2 29.Qe6 Kh8 30.Qe3 Qd8 31.Rc1 h6 32.c6 Qd5 33.Qf3 Qd4 (33...Qg5!? 34.Rd1 Qc5 35.Kh1 Rb8+=) 34.Kh1+– Qc5 (better is 34...Rb8+–) 35.Rd1?? (better is 35.Qf4 Rf2 36.Rc5 Rf4 37.g4+–) 35...Rb8+= 36.Qf4 Rc8 37.Rc1 Qa3 38.c7 Qe7 39.h3 a5 40.Qg3 a4 41.Re1 (better is 41.Kg1!?=) 41...Qc7–/+ 42.Re8 Kh7 43.Qd3 g6 44.Re4 Rd8 (44...Qb7!? 45.Rd4 Rc7+=) 45.Qe2= Rd7 46.Ra4 Qc1 47.Kh2 Qc7 ˝–˝. Machala,Vladislav – Novy,Daniel (2140), CZE–chT2 Czechia, 1999. (=1.Nf3 a6 2.b4 e6 3.Bb2 Nf6 4.a3 c5 5.bc5 Bc5 6.e3 d5)

8.Bc4 b5 9.d4 =.

8.Bc4 b5 9.Be2 Bb7 10.0–0 0–0 11.Qc2 Nbd7 12.Ng5 Rc8 13.Nc3 h6 14.Bf3 Bf3 (worse is 14...hg5 15.Bb7 Rb8 16.Ba6+/–) 15.Nf3 Be7 16.d4 Nb6 17.Ne5 Nc4 18.Nc4 Rc4 19.Qe2 Qb6 (19...Qc7 20.Rac1–/+) 20.a4+= Rfc8 21.ab5 ab5 22.Rac1 Qb7 23.f3 ˝–˝. Skrzypczak,Michal (1950) – Gorski,Boguslaw, Mistrzostwa Sekcji L.K.S. Piast Srem Poland, 2009.

8.Bc4 b5 9.Be2 Bb7 10.d4 Bd6 11.Nbd2 (11.a4 b4=) 11...0–0 (11...Nbd7 12.a4 Rb8 13.ab5 ab5 14.0–0=) 12.Qb3 (12.a4 b4=) 12...Ne4 (12...Nbd7 13.0–0+=) 13.0–0 Bd5 (13...Nd2 14.Nd2 Qh4 15.f4=) 14.Qc2 (14.Qd3 Nd2 15.Nd2 Qh4=) 14...Nd2+= 15.Nd2 f5 (15...Nd7 16.e4 Rc8 17.Qd3+=) 16.Bf3= Nd7 17.Bd5 ed5 18.Nf3 (18.a4 b4=) 18...Nb6+= 19.Bc3 Nc4 20.Bb4 a5 (20...Rc8 21.Rfc1+=) 21.Bd6 Qd6 (worse is 21...Nd6 22.Qc5 Nc4 23.Rfb1+=) 22.Qd3 (22.Qb3 Rab8+=) 22...Rab8 (22...f4 23.ef4 Qf4 24.Rfe1+=) 23.Rfe1= Rb6 24.Ra2 Qe6 25.Qb3 Rb7 26.Ne5 a4 27.Qc3 Ne5 28.de5 d4 The passed pawn on e5 quickly leads to threats 29.Qa1 de3 30.Re3 f4 31.Rf3 Rf5 32.Re2 Re7 Pawn e5, live or die! 33.Kf1 g5–/+ 34.Rd3 Re5 35.Re5 Qe5 The mate threat is Qxa1 36.Qd1 h6 37.h3 Kg7 38.h4 gh4 39.Rd5 Qe4 40.Rd3 Kh7 41.Rd4 Qf5 42.Rd5 Qe6 43.Qd3 Kg8 44.Kg1 Qe4 45.Qe4 Re4 46.Rb5 Re1 47.Kh2 Ra1 48.Rb4 Ra3 49.Rf4 Kg7 (49...h3 50.gh3 Kg7 51.Kg2+=) ˝–˝. Bonetti,Shane – Wrede,Christian, T15–11 ETC, 2004.

7.d4 Bd6

8.c4 dc4 9.Bc4 b5 10.Bd3 Bb7 11.a4 Nbd7 (11...b4!?=) 12.ab5+= ab5 13.Nbd2 (13.Ra8 Qa8 14.Bb5 Qa5 15.Nc3 Bb4=) 13...Ra1= 14.Qa1 0–0 15.Bb5 Qb6 16.Bd7 Nd7 17.0–0 Ra8 18.Qb1 Bf3 19.gf3 Qb4 (19...Rb8!?+=) 20.Ne4+= Rb8 21.Rc1 Bf8 22.Rc2 Qa5 23.Kg2 Ba3 (better is 23...Qf5!?+=) 24.Ba3 Qa3 (24...Rb1?? 25.Rc8 Qd8 26.Rd8 Nf8 27.Rf8) 25.Qb8! Nb8 26.Rc8 Qf8 27.Rf8 Kf8 28.f4 Ke7 29.Kf3 Nd7 30.Ke2 h6 31.Kd2 Nb6 32.Nc5 Nd5 33.Nd3 Nc7 34.e4 Kd6 35.Nc5 Nb5 36.Kd3 g5 37.e5 Kd5 38.fg5 hg5 39.Ne4 Nd4 40.Ng5 Ke5 41.Nf7 Kd5 42.h4 e5 43.h5 Ke6 44.Ng5 Kf6 45.h6 Nc6? 46.h7 Kg7 47.Ke3. Schulz,Hans_Juergen – Nittschalk,Karl, TT–18.17 ETC, 2005.

8.c4 dc4 9.Bc4 Qc7 10.Nbd2 (10.Qa4 Bd7 11.Qc2 b5=) 10...Bd7 (10...b5 11.Bd3=) 11.e4 (11.Rc1 Nc6+=) 11...Be7 (11...b5 12.Bd3 Bf4 13.Rc1+=) 12.Ne5 (12.Rc1 Nc6+=) 12...Nc6 13.Nef3 Na5 14.Be2 0–0 15.0–0 Rac8 16.e5 Nd5= 17.Rc1 Qb6 18.Rb1 Qc7 19.Ne4 Bc6 20.Qc2 Nf4 21.Rfc1 Ne2 22.Qe2= Qd8 23.Rc3 Bb5 24.Qc2 Rc3 25.Qc3 Nc4=+ 26.a4 Nb2 27.ab5= Na4 28.Qc2 Nb6 29.ba6+/– ba6 30.Qc6 Nd5 31.Qa6 Qa8 32.Qa8 Ra8 33.h3 h6 34.Rc1 Bd8 35.Nd6 Kf8 36.g3 Ke7 37.Nd2 Ra4 38.Nf3= Kd7?? 39.h4 Ke7 40.Rb1 Ra3 41.Kg2 Bc7 42.Rb7 Ra4 43.Nb5 Kd8 44.Nd6 Ke7+– 45.h5 Rb4 46.Ra7 Rb2 47.Ne4 Ke8 48.Ra8 Rb8 49.Rb8 Bb8 50.Kf1 Kd7 51.Ke2 g6 52.hg6 fg6+/– 53.Nf6 Nf6 54.ef6+– Ke8 55.Ne5 g5? 56.f7 Ke7 57.f8Q! Kf8 58.Nd7 Kf7 59.Nb8 1–0. Petrov,Peter (2325) – Atanasov,Emanuil, Sofia Baharov op, 1995.

8.Nbd2 0–0 9.Bd3 Nc6 10.h3 (10.c4 dc4 11.Nc4 Bc7=) 10...Re8 (10...b5 11.0–0=) 11.0–0 e5 12.de5 Ne5 13.Ne5 Be5 14.Be5 Re5 15.Nf3 Re8 16.Rb1 b5 17.Rb4 Be6 18.c3 Qc8 19.Qc2 h6 20.Nh2 (20.a4 ba4 21.Ra4 a5+=) 20...Ra7 21.Qd2 Rd8 (21...Qc6 22.Nf3+=) 22.a4 (22.Rd4 Bf5=) 22...ba4 23.Ra4 a5 24.Rfa1 Ne4 The isolani on c3 becomes a target 25.Be4 de4 26.Qe1 Bb3 27.Re4= a4 28.Rd4 Rc7 29.Nf3 Re8 30.Rc1 Re6 31.Qd2 Qa6? 32.Rd8 Kh7+/– 33.Qd3 Qd3= 34.Rd3 Bc4 35.Rd4 a3 36.Nd2 Rec6 37.Nc4 Rc4+= 38.Rc4 Rc4 39.Rc2 Kg6 40.Kf1 Kf5 41.f3 Ke5 42.Ke2 Kd5 43.Kd3 Ra4 44.Ra2 Kc5 45.e4 f6 46.g4 g5= 47.Kc2 Kc4 48.Kd2?? Kb3–+ 49.Ra1 a2 50.Kd3 Kb2 51.Rd1 a1Q 52.Ra1 Ra1 53.c4 Rd1 54.Ke3 Kc3 55.c5 Rd3 56.Ke2 Kd4 57.c6 Rc3 58.Kf2 Rc6 59.Kg3 Ke3 60.h4 gh4 61.Kh4 Kf3 0–1. Vogel,Gerhard – Gilles,Walter (1620), Bad Sooden Allendorf Senior op, 2004.

8.Bd3 0–0 9.Nbd2 b5 10.a4 b4 11.Rc1 =.

8.Bd3 Nc6 9.0–0 Bd7 10.Nbd2 Rc8 11.c4 0–0 12.cd5 (12.c5 Bb8+=) 12...ed5= 13.Rc1 b5 14.Re1 Re8 15.Nb3 Ne4 16.Nc5 Bc5 17.dc5 Bf5 18.Qc2 (18.a4 ba4 19.Qa4 a5+=) 18...Bg6 19.Nd4 (19.Red1!?=) 19...Ne5+= Attacks the isolani on c5 20.Red1?? (better is 20.Nb3+=) 20...Rc5 (better is 20...Nd3!? 21.Qd3 Nf2 22.Qc3 Nd1 23.Rd1–+) 21.Qe2 Rc1 22.Rc1 Nd3 23.Qd3 Nf2! 24.Qe2 Nd3 25.Rb1 Nb2 26.Rb2 Qg5 27.Rb3 h6 28.Nf3 Qg4 29.Qd2 Be4 30.Qf2 Bf3 31.Qf3 Qc4 32.Qd1 Qc5 33.Rd3? g6 34.Kf2 Re5 35.g3 Qd6 36.Qd2 Qf6 37.Kg2 Qf5 38.Rd4 g5 39.Qc3 Kh7 40.Qc6?? Re3 41.Qd5 Qd5 42.Rd5–+ Ra3 43.Rd7 Kg6 44.Rd6 f6 45.Rb6 Ra4 46.h3 b4 47.g4 a5 48.Rb5 Ra3 49.Kf2 b3 50.Ke2 a4 51.Kd2 Ra2 52.Kc1 Rh2 53.Rb4 Rh3 54.Ra4 h5 55.gh5 Kh5 56.Kb2 f5 57.Ra5 f4 58.Rf5 Re3 59.Rd5 Kg4 60.Rd8 f3 61.Rf8 Kg3 62.Rf5 g4 63.Rf6 f2 64.Rf8 Rf3 65.Rf3 gf3 66.Kb3 f1Q 67.Kb4 Qd3 68.Kc5 (68.Ka5 f2 69.Kb4 f1Q 70.Kc5 Qc1 71.Kb6 Qb3 72.Ka5 Qca3) ˝–˝. Fournier,Frederic (1800) – alemprator (1700), Active, 2011.

5.Nf3 Nc6

6.c4 dc4 7.Bc4 b5 8.Bb3 Bb7 9.d3 Bd6 10.e4 Bf4 11.Bc2 0–0 12.0–0 Nd7 13.Nbd2 Ne7 14.Nb3 Rc8 15.d4 c6 (15...f5 16.Re1=) 16.Nc5 Nc5 17.bc5 Ng6 18.Qd3 Rc7 19.e5 a5 20.h4 Re8 21.h5 Nf8 22.Qe4 Bh6 23.Qg4 f5 24.ef6 Qf6 25.Rab1 Qf4 26.Qf4 Bf4 27.Bc3 a4 28.g3 Bh6 29.Ne5 Bg5 30.Ba5 Rce7 31.f4 Bf6 32.Nf3 (32.Be4 g6+–) 32...Rd7 33.Bc3 Ba6 34.Rfe1 Rd5 (34...g6 35.h6+/–) 35.Ne5 (35.Be4!? Rh5 36.Bc6 Rd8+–) 35...Be5 36.Re5 (better is 36.fe5!? Rd7 37.Be4+/–) 36...Nd7+= 37.Rd5 (37.Rg5 Nf6+=) 37...ed5= 38.Re1 Re1 39.Be1 Nf6 40.Bd1 Bc8 41.Kf2 Bg4 42.Bg4 Ng4 43.Kf3 Nf6 44.g4 Kf7 45.f5 h6 46.Kf4 Ne4 47.Ba5 Ke7 48.Ke5 (better is 48.Ke3!?=) 48...Nf2–/+ 49.Kf4 Nd3 (better is 49...b4 50.ab4 a3–+) 50.Kg3?? (50.Kf3 Nb2=) 50...Nb2?? (better is 50...b4–+) 51.Kh4 (better is 51.Kf3=) 51...Nc4–/+ 52.Bb4 Ne3 53.Bc3 Nc2 54.Bb2 b4 55.ab4 Nb4 56.g5 Nc2 57.gh6 (57.Kg4!?–+) 57...gh6 58.Bc1 Nd4 59.Bh6?? (59.Kg4 Kf7 60.Bb2–+) 59...Nf5 60.Kg5 Nh6 61.Kh6 Kf6 62.Kh7 Kf7 63.h6 a3 64.Kh8 a2 65.Kh7 Kf8 0–1. Vila Vila,Ricard (1815) – Arcusa Postils,Eduard, Moia ESP, 1st Open, 2013. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.a3 a6 5.e3 Nc6)

6.c4 dc4 7.Bc4 b5 8.Be2 Bd6 9.Qc2 Bb7 10.0–0 0–0 11.Nc3 Ne5 12.Ne5 Be5 13.f4 Bc3 (13...Bd6 14.a4=) 14.Bc3 Rc8 15.Bd4 Be4 16.Qb2 Ne8 17.d3 Bb7 18.f5 ef5 19.Rf5 f6 20.Bd1 Nd6 21.Bb3 Kh8 22.Rf4 Nf7? (better is 22...a5+/–) 23.Rf6!+– Bd5 (23...gf6 24.Bf6 Double attack) 24.Rf3! (24.Ra6?! Rg8+–) 24...Kg8 (24...Bf3 25.Bg7 Double attack (25.Bg7 Decoy)) 25.Bg7 Bb3 (25...Re8 26.Raf1 Qd6 27.Bh6 Qh6 28.Bd5+–) 26.Bf8 Kf8 27.Qb3 (27.Qb3 Ke7 28.Qf7 Kd6 29.Rf6 Qf6 30.Qf6 Kd7 31.Qf5 Kd6 32.Qc8 Ke7 33.Rf1 c6 34.Qc7 Ke6 35.Qf7 Ke5 36.Qf6 Kd5 37.e4) 1–0. Degterev,Pavel (2460) – Rice,Russell J, corr WC15/WS64 ICCF, 2006.

6.c4 dc4 7.Bc4 Bd6 8.Nc3 e5 9.Qc2 h6 10.Ne4 Ne4 11.Qe4 Now all is on e5 11...0–0 12.Ne5 Ne5 13.Be5 Re8 14.d4 Qe7 (better is 14...Be5 15.de5 Qe7+/–) 15.Qf4 (15.Bd3 f5 16.Qd5 Be6 17.Bd6 Qd6 18.Qc5+/– (18.Qb7 Bd5 19.Bc4 Bc4–+)) 15...Bb4= 16.Ke2 Bd6 (16...Ba3? 17.Ra3 b5 18.Bd5+–) 17.Bd6 cd6 (17...Qd6?? 18.Qf7 Kh7 19.Bd3 Bf5 20.Bf5 Kh8 21.Qg6 Qg6 22.Bg6+–) 18.Rhc1 Be6 19.Bd3 Rac8 20.Qe4 g6 21.d5 Rc1 22.Rc1 Bf5 (better is 22...Bd7!? 23.Qe7 Re7+=) 23.Qe7+– Bd3 24.Kd3 Re7 25.Rc8 Kg7 26.Rd8 Kf6 (26...Rc7 27.Rd6 Rc5 28.Rd7+–) 27.Rd6 Ke5 28.Rd8 Rc7 29.f4 Kf5 30.g3 b5 (30...Kg4 31.d6 Rc1 32.Ke4+–) 31.e4 Kg4 32.d6 Rc4 (32...Rc1+–) 33.Rf8 Rc1 34.e5 Rd1 (34...Ra1+–) 35.Kc2 Rd5 36.Rf7 Kf3 (36...Rc5 37.Kb3 Rd5 38.d7+–) 37.d7 a5 38.e6 Ke2 39.d8Q! Rd8 40.Rd7 Rc8 41.Kb3 Rc6?? (better is 41...Re8 42.Rd5 Kf2 43.Rb5 Re6+–) 42.e7 Re6 43.Rd5 Re3 44.Kb2 Re7 45.Re5 (45.Re5 Kf3 46.Re7+–) 1–0. Zak,Pawel – Golaszewski,Marek, Polanica Zdroj op–C POL, 2006.

6.c4 dc4 7.Bc4 Ne4 8.Nc3 Nc3 9.Bc3 f6 10.d4 Qe7 11.0–0 Bd7 12.d5 ed5 13.Bd5 0–0–0 14.Qb3 Bf5 (14...Ne5 15.Rfd1+/–) 15.b5 (better is 15.Bc6 bc6 16.Nd4+–) 15...Bd3?? (better is 15...ab5 16.Qb5 Be4 17.Be4 Qe4+/–) 16.bc6+– Bf1 (16...Bb5 17.cb7 Kb8+–) 17.Qb7 1–0. Fournier,Frederic (1980) – NN, jeu.europe–echecs.com, 2013. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.a3 a6 5.e3 Nc6)

6.c4 Be7 7.Be2 0–0 8.0–0 b6 9.Qc2 dc4 10.Bc4 Bb7 11.Ng5 g6 12.d3 Qd6 13.Qc3 e5 14.d4 (better is 14.f4!? Nd5 15.Qd2 ef4 16.Ne4+=) 14...ed4+= 15.ed4 Ng4 16.Nf3 Nd8 (16...Bf6!? 17.Rd1 Nce5 18.Ne5 Be5+=) 17.Nbd2+= Ne6 18.h3 Nf6 19.Rfe1 b5 (19...Nd5 20.Bd5 Bd5 21.Nc4=) 20.Bb3 (better is 20.d5 Nf4 21.Ne4+/–) 20...Rad8?? (better is 20...a5=) 21.d5!+– Bd5 (21...Bd5 22.Bd5 Combination; 21...Nd5 22.Qh8#) 22.Bd5 Qd5 23.Ne4 Nd4 24.Qd4 Qd4 25.Bd4 Nd5 26.Nc3 Nc3 27.Bc3 Bd6 28.Be5 Be5 29.Ne5 Rd6 30.Rad1 Re6 (30...Re8 31.Ng4 Re1 32.Re1+–) 31.Nd7 Re1 32.Re1 Rd8 33.Nc5 Rd6 34.Re8 Kg7 35.Ra8 Rd1 36.Kh2 Rd2 37.f3 Ra2 38.Ra6 (worse is 38.Na6 Ra3 39.Nc7 Ra4+–) 38...h5 39.Ra5 c6 40.Ra6 Ra1 41.Rc6 Ra3 42.Rb6 Ra1 43.Rb5 Rb1 44.Rb8 Kf6 45.Rb7 g5 (45...Ke5 46.Nd3 Ke6 47.Kg3+–) 46.Ne4 Kg6 47.Nd6 (47.Rb6 Kf5 48.Rb5 Ke6 49.Ng5 Kf6 50.Ne4 Ke6 51.Rb6 Ke5+–) 47...f6 48.Rb6 Kg7 49.Ne8 Kf7 50.Nf6 h4 51.Nh7 Ke7 52.Ng5 Kd7 53.Nf7 Kc7 54.Rg6 (54.Rb5 Rc1+–) 54...Rb4 55.Rg4 Rb5 56.Rh4 Kd7 57.Re4 Rf5 58.Nh6 Rh5 59.Ng4 Rh8 60.f4 Rf8 61.Kg3 Kd6 62.Kf3 Kd5 63.h4 Kd6 64.h5 Rh8 65.h6 Rh7 66.f5 Rf7 (66...Kc7 67.Kf4+–) 67.f6 (67.Re6!? Kd5 68.Nf6 Kc5+–) 67...Rh7 68.Kf4 Rf7 69.Kf5 Rh7 70.g3 Rf7 71.Re6 Kc7 72.Re7 Re7 73.fe7 Kd7 74.Kf6 Ke8 75.h7 Kd7 76.h8Q Kc7 77.e8Q Kb6 78.Qe5 Ka7 (78...Kb7 79.Qhb8 Kc6 80.Qbc7) 79.Qg7 (79.Qhb8 Ka6 80.Qeb5) 79...Ka6 80.Qd7 Kb6 81.Qdd6 (81.Qeb5) 81...Kb7 82.Qee7 Kc8 83.Qdd8# 1–0. Kulsarieva,Nyrita – Ozbay,Ece, Al–Ain UAE, World Ch Girls U12, 2013.

6.d4 b5 7.Nbd2 Bd6 8.Bd3 Qe7 9.0–0 e5 (9...0–0 10.Re1=) 10.de5+= Be5 (10...Ne5 11.Ne5 Be5 12.Be5 Qe5 13.Nf3+=) 11.Ne5 Ne5 12.Nf3 (better is 12.Be5 Qe5 13.a4+=) 12...Bg4?? (better is 12...Nd3 13.Qd3 Be6+=) 13.Be5+– Bf3 14.Bf6 Qf6 15.Qf3 Qf3 16.gf3 0–0 17.Rfe1 c6 18.e4 Rfe8 19.ed5 cd5 20.Re8 Re8 21.Kf1 Re6 22.Re1 Re1 23.Ke1 h5 24.Ke2 Kf8 25.Ke3 Ke7 26.Kd4 Kd6 27.f4 f6 28.Be2 g6 29.Bf3 g5 30.fg5 fg5 31.Bh5 Ke6 32.Bf3 Kf5 33.Kd5 Kf4 34.Be2 g4 35.c4 bc4 36.Kc4 Kf5 37.a4 Kf4 38.b5 (38...ab5 39.ab5+–) 1–0. Redzepagic,Sadedin – Lee,Melissa, Box Hill op, 2001.

6.d4 Bd6 7.Bd3 =+.

6.Be2 Be7 7.0–0 0–0 8.d4 Bd6 9.c4 dc4 10.Bc4 Ng4 (10...Bd7 11.Bd3=) 11.h3 Nf6 12.Nbd2 b5 13.Bd3 Bb7 14.e4 (better is 14.Qc2+=) 14...e5? (better is 14...Nh5!?=) 15.d5 (worse is 15.Ne5 Be5 16.de5 Nd7+=) 15...Nd4 (15...Na7 16.Ne5 Re8 17.Nef3+/–) 16.Nd4+– ed4 17.Bd4 Re8 18.f4 Be7 19.Nf3 (19.Nb3 Bf8 20.Be5 Nd7+–) 19...h6 (19...c6 20.Bf6 gf6 21.dc6 Bc6 22.Rc1+/–) 20.Qc2 Kh8 (20...Rc8+–) 21.Rae1 Rc8 (21...Kg8 22.Ne5+–) 22.Qc3 (22.Ne5 Kg8 23.Nc6 Qd7+–) 22...Rg8 (22...Kg8!?+/–) 23.Ne5+– Rf8 (23...Qe8 24.Rc1+–) 24.Nc6 Bc6 25.Qc6 Ra8 26.Rc1 1–0. zabazaba (1620) – nstone, gameknot.com, 2015.

6.Ne5 Ne5 7.Be5 Bd6 =.

5.Nf3 Bd6

6.c4 0–0 7.c5 Be7 8.Be2 =.

6.c4 dc4 7.Bc4 0–0 8.0–0 b5 9.Be2 c5 10.bc5 Bc5 11.Qb3 Bb7 (11...Qd5 12.Qd5 Nd5 13.Rc1=) 12.d3 (12.Nc3 Nc6=) 12...Nbd7 (12...Bd5 13.Qc2 Bd6 14.e4+–) 13.Nc3 Be7 (13...Rc8 14.a4 b4 15.Ne4+=) 14.Rfd1 (14.a4 b4 15.Ne4 Ne4 16.de4 Qa5+=) 14...Nc5+= 15.Qc2 Rc8 16.Qb1 (16.Ne5 Na4 17.Rdc1 Nd5–/+) 16...Qc7 (16...Qd6 17.a4 b4 18.Na2–/+) 17.Bc1 (17.a4 b4 18.Na2 Qa5–/+) 17...Ncd7 (17...Rfd8 18.a4 Bf3 19.Bf3+=) 18.Bd2 (18.Bb2 Bd6+=) 18...Nb6 (18...Ne5 19.Ne5 Qe5 20.d4+=) 19.e4 Nfd7 (19...Qd6 20.e5 Qd7 21.ef6 Bf6 22.d4+–) 20.Rc1= Qb8 21.Nd1 (21.Be3 Qd6=) 21...Rc1 22.Bc1 Rd8 23.Be3 (23.Ne3 Qd6=) 23...Na4 (23...Qd6 24.a4 Bf6 25.d4=) 24.d4 Ndb6 (24...Qd6 25.Bd3=) 25.Ne5 (25.Qc2 Qd6=) 25...Bd6+= 26.Nf3 Qc7 27.h3 Rc8 28.Bd3 Be7 29.Nd2 Nc3 30.Nc3 Qc3 Attacks the isolani on a3 31.Nb3 Nc4–/+ 32.Bc4 bc4 Black gets strong play along the open b–file 33.Nd2 Ba8 34.a4 a5 35.Ra2 Qb4 36.Qc2 c3 37.Nb1 Qc4 38.f3 Bb7 39.Na3 Ba3 40.Ra3+= Ba6 41.Kh2 Qb4 42.Qb3 c2 43.Qb4 ab4 44.Rb3 c1Q 45.Bc1+= Rc1 46.Rb4 Rc8 47.Rb6 Bc4 48.a5 Ra8 49.Rc6 Ba6 50.Rc5 Kf8 51.Kg3 Ra7 52.Kf4+= Ke7 53.Ke3 Kd6 54.g4 h6 55.h4 Kd7 56.d5 Rb7 57.Rc6 Rb3 58.Kf4? Bd3 59.Rc5? Bb5 60.de6–/+ fe6 61.Rc3?? Rb2 62.Ra3+= Kc8 63.a6 Kb8 64.a7 Ka8 ˝–˝. Pignataro,Louis (1840) – Maissa,Frederic (2120), Hautes Alpes op 3rd, 2002.

6.c4 dc4 7.Bc4 b5 8.Be2 0–0 9.d4 Bb7 10.0–0 Nbd7 11.Nbd2 Nb6 12.Qc2 Na4 13.Bd3 Nb2 14.Qb2 Nd5 15.Rfd1 f5 16.Nb3 Nf6 17.Ne5 Ng4 18.Ng4 fg4 19.e4 Bh2? (better is 19...Qh4 20.e5 Be7+=) 20.Kh2+– Qh4 21.Kg1 Rf2 22.Qf2 g3 23.Qf3 Rf8 24.Nd2 Qh2 25.Kf1 Rf3 26.Nf3 (26.gf3?? Qf2) 26...Qh1 27.Ng1 Qh4 28.Ke2 Be4 29.Nf3 Bf3 30.Kf3 g5 31.Ke2 Qg4 32.Kd2 Qd4 33.Kc2 Qe5 34.Bf1 h5 35.Rac1 h4 36.Kb1 Qe4 37.Rc2 ˝–˝. Nemec,Zdenek (2055) – Jozefini,Lubor (1780), SB–2010–0–00111, 2010.

6.c4 c5 7.cd5 (7.bc5 Bc5 8.d4 Be7=) 7...ed5 (7...cb4 8.ab4 ed5 9.Bb5 Bd7 10.Bf6 Qf6 11.Nc3 Bb5 12.Nb5=) 8.bc5 Bc5 9.Qb3 Bd7 (9...b5 10.a4=) 10.Bf6 (10.Qb7 Ra7 11.Qb3+=) 10...gf6 (better is 10...Qf6 11.d4 Bc6=) 11.Qd5+/– Qb6 12.Nc3 Bc6 13.Qf5 Nd7 14.Bc4 (14.Na4 Ba4 15.Qe4 Ne5 16.Qa4 Qc6 17.Qc6 bc6+–) 14...Bf3 (14...Qb2 15.0–0 Ba3+–) 15.Bf7!+– Kf7 (15...Ke7 16.gf3 Qd6 17.Ne4+–) 16.Qd7 Be7 17.gf3 Rad8 18.Nd5 (18.Qf5 Ke8+–) 18...Qc5 (18...Qe3 19.fe3 Rd7 20.e4+/–) 19.Qe7+– Qe7 20.Ne7 Ke7 21.Rg1 Rc8? (better is 21...Rhg8 22.Rg8 Rg8+/–) 22.Rg7 Kd8 (22...Kd6 23.Rb7 Rhg8 24.Ke2+–) 23.Rb7 Rg8 24.Ke2 Rg2 (24...Rc7 25.Rb6+–) 25.Rh7 Rc7 26.Rc7 Kc7 27.Rh1 Kd6 28.h4 Ke7 29.h5 Rg7 30.d4 f5 31.e4 f4 32.Rb1 Kf6 33.Rb6 Kg5 34.Rg6 Rg6 35.hg6 Kg6 36.Kd3 (36.Kd3 Kf6 37.a4+–) 1–0. Wessel,Volkmar – Kalweit,Werner, Schleswig Holstein–chB, 1989.

6.Bd3 Nc6 7.Be2 0–0 8.d4 b5 9.0–0 Qe7 10.Ne5 Bd7 11.f4 =.

6.d4 a5 7.ba5 0–0 8.Bd3 +=.

6.d4 Nbd7 7.c4 (7.Bd3 a5=) 7...dc4 (7...0–0 8.Nc3+=) 8.Bc4= Qe7 (8...0–0 9.0–0=) 9.0–0 e5 (9...0–0 10.Qc2=) 10.Nc3 (10.de5 Ne5 11.Ne5 Be5 12.Be5 Qe5=) 10...0–0 (10...e4 11.Nd2=) 11.Be2 (11.e4 ed4 12.Qd4 b5+=) 11...ed4 (11...e4 12.Ng5 h6 13.Nh3+=) 12.Nd4 Ne5 13.h3 (13.f4 Neg4 14.Qd3 Qe3 15.Qe3 Ne3–/+) 13...Bd7 14.Qc2 Rac8 (14...Rfc8 15.f4 Nc6 16.Qd3=) 15.Nf5 (15.Ne4 Rfe8=) 15...Bf5= 16.Qf5 Ng6 (16...Rfd8 17.f4 Ng6 18.e4=) 17.Nd5 (17.Rac1 Rfd8+=) 17...Nd5= 18.Qd5 c6 (18...c5 19.bc5 Rc5 20.Qf3=) 19.Qf5 Rfd8 (19...Be5 20.Be5 Ne5 21.Rfd1=) 20.Bd3 (20.Bd4 Be5 21.Bc5 Qd7 22.Qd7 Rd7+/–) 20...Bh2 21.Kh1 Be5 22.Be5 Qe5 23.Rad1 Rb8 24.Qe5 Ne5 25.Be2 Kf8 26.Rd8 Rd8 27.Rd1 Rd1 28.Bd1 b6 29.Be2 a5 30.f4 Nd7 31.ba5 ba5 32.a4 Nc5 33.Bd1 Ke7 34.Kg1 Kd6 35.Kf1 Kd5 36.Ke1 Kc4 37.Kd2 Kb4 Attacks the isolani on a4 38.Bf3 Na4 39.Bc6 Nc3 40.Be8 f6 41.Kc2 a4 42.Bf7 a3 43.g4 a2 44.Kb2= Nd1 45.Ka2 Ne3 46.Kb1 Kc3 47.Kc1 Kd3 48.Bg8 h6 49.Bh7= White intends f5 49...Ke2 50.Be4 Nf1 51.f5 Kf2 52.Bd3+= Nh2 (52...Nh2 53.Bc4 Kg3–+) 0–1. Schwichtenberg,Juergen – Janssen,Lieselotte (2125), GER–ch Seniors, 2001.

6.Be2 0–0 7.0–0 Nbd7 8.c4 dc4 9.Bc4 b5 10.Ba2 (10.Be2 Bb7+=) 10...c5 11.bc5 Nc5 12.d4 Na4 13.Bc1 Bb7 14.Nbd2 Nc3 15.Qe1 Na2 16.Ra2 Ne4 17.Ne4 Be4 18.Qe2 Qf6 19.Bb2? (19.Rd2 Rad8–/+) 19...Qh6 (19...Bd5 20.Raa1 Bc4 21.Qd2 Bf1 22.Rf1–+) 20.g3 (better is 20.Rc1–+) 20...Qh5 21.Kg2 g5 22.Re1 (22.h3 f5 23.Rh1 Rac8–+) 22...g4 23.Kf1 (23.Qf1 Qf5 24.h4–+) 23...gf3 24.Qd2 Qh3 (24...Qh3 25.Kg1 Qg2) 0–1. Neumann,Frank (1650) – Ziebarth,Susanne (1810), RSS7E–86 remoteschach.de, 2008.

6.Be2 0–0 7.0–0 Nbd7 8.d3 a5 9.ba5 Ra5 10.c4 dc4 11.dc4 =+.

6.Be2 a5 =.

6.Be2 Nbd7 7.0–0 0–0 8.d4 Nb6 9.Ne5 Nfd7 10.Nd2 a5 11.b5 =.

6.Be2 e5 7.Ne5 Be5 (7...a5 8.b5+/–) 8.Be5 Qe7 9.Bf6 Qf6 10.Nc3 d4 11.Ne4 Qg6 12.Nc5 Qg2 13.Bf3 Qh3 14.Nb7 (14.ed4?! Kd8 15.d3 Re8 16.Kd2 Qh6 17.Kc3 c6+=; 14.Bb7? Bb7 15.Nb7 Qg2–/+) 14...Bb7 15.Bb7 Ra7 16.Qf3 Qf3 17.Bf3 0–0 (17...de3 18.de3 Nd7 19.0–0–0+–) 18.ed4 Re8 19.Kd1 Nd7 20.Re1 Nf6 21.Re5 c5? (21...Rd8 22.c3 Kf8+–) 22.Re8 Ne8 23.bc5 Rd7 24.Bc6 Rd8 25.Be8 Re8 26.Rb1 Kf8 27.d5 Ke7 28.Rb7 Kf6 29.c6 Ke5 30.c4 Kd4 (30...g5+–) 31.d6 Kc4 32.d7 Rd8 33.c7 Rd7 (33...Kd5 34.cd8Q Ke5 35.Qg5 Ke6 36.d8Q h6 37.Qgd5) 34.c8Q 1–0. Fritz 11 – anony, internet, 2013.

6.Be5 Be5 7.Ne5 Nbd7 8.d4 Ne5 9.de5 Nd7 10.Qg4 0–0 11.Bd3 =.

6.Ne5 =.

5.Nf3 Bd7

6.c4 dc4 7.Bc4 b5 8.Be2 =.

6.c4 c5 7.b5 ab5 8.cb5 Bd6 9.Be5 Be5 10.Ne5 =+.

6.c4 c5 7.b5 Be7 8.a4 (8.Qa4 dc4 9.Bc4 Nd5 10.Bd5 ed5=) 8...ab5 (8...0–0 9.d4=+) 9.cb5 (9.ab5 Ra1 10.Ba1 0–0=) 9...b6 (9...0–0 10.Be2=+) 10.Bd3 (10.Be2 0–0=) 10...Bd6 (10...0–0 11.0–0=) 11.Nc3 (11.0–0 Qe7=) 11...c4 (11...e5 12.Bc2=+) 12.Be2=+ e5 13.d3 (13.Rc1 0–0=+) 13...cd3 14.Bf1? (14.Qd3 e4 15.Ne4 Ne4 16.Qd5=) 14...e4–+ 15.Nd2 Bf5 16.g3 Qd7 17.f3 Bh3 18.fe4=+ Bf1 19.Rf1 Be5 20.Nf3 Bc3=+ 21.Bc3 de4 22.Ne5? Qc7 23.Rc1–/+ 0–0 24.Bd4 Qe7 25.Nc4 Nbd7 26.Kf2 Qe6–+ 27.Nb6 Nb6 28.Rc6 Qa2 29.Kg1 Qe2 30.Rb6=+ Ra4 31.Qe2= de2 32.Re1 Ra2 33.h3 Rfa8 34.Rc6 Nd5= 35.b6 h6?? 36.b7+– Rb8 37.Rc8 Rc8 38.bc8Q Kh7 39.Qf5 Kg8 40.Qd5 Rd2 41.Qe4 f6 1–0. Guirado Femenias,A – Vallbona Planas,X, Granollers open B, 1997.

6.c4 c5 7.bc5 Bc5 8.d4 Bd6 9.c5 Bc7 10.Bd3 0–0 11.0–0 Nc6 12.Nbd2 Re8 13.Ne5 Ne5 (13...Rb8!?+=) 14.de5+/– Ne4 15.Ne4 de4 16.Be4 Rb8 (16...Bb5 17.Qd8 Red8 18.Rfd1+/–) 17.Qc2 (17.Qh5 h6+–) 17...g6 (17...Qh4 18.g3 Qh6 19.Bd4+/–) 18.f4 Bb5 19.Rf3 Bc6 20.Bc6 bc6 21.Bd4 Rb5 22.a4 Rb7 23.g4 (23.Rd1!? Ba5+–) 23...Qd5 24.Kg2 Qb3 25.Qe4 Qd5 26.Qd3 a5 27.Rb1?? Qa2–+ 28.Bb2 Rb2 29.Rb2 Qb2 30.Rf2 Qb7 31.Kg3 Rd8 32.Qe2 Qb4 33.Qc2 Rd5 34.h4 Rc5 35.Qe2 Qa4 36.g5 Qb5 37.Qf3 Rd5 38.h5 Bb6 39.Rh2 Be3! 40.hg6 fg6 41.Rh6 Bf4! 42.Kf4 Qc4 (42...Qc4 43.Kg3 Rd3–+) 0–1. English,Mark D – Selkirk,Chris, Latham op, 2004.

6.c4 c5 7.cd5 ed5 8.bc5 Bc5 +=.

6.Be2 Nc6 7.0–0 Bd6 8.d3 e5 9.Nbd2 h6 (9...0–0!?=) 10.c4+= dc4 11.dc4 b6 12.b5 ab5 13.cb5 Ne7 (better is 13...Na7!? 14.a4 Qe7+/–) 14.Ne5+– Be5 15.Be5 Ng6 16.Bd4 0–0 17.Qc2 Qc8 (17...Re8+–) 18.Bf6 gf6 19.Ne4 Bf5 (19...Kg7+–) 20.Nf6 Kg7 21.Qc3 Kh8 22.e4 Be6 23.f4 c5 (23...Ra4 24.f5 Rd8 25.Nd5 Kg8 26.fe6 Qe6 27.Rf6 Re4 28.Re6 Re6 29.Nf6 Rf6 30.Qf6+–) 24.f5 Nh4 (24...Qb7 25.Nh5 Ne5 26.Qe5 f6 27.Nf6+–) 25.fe6 fe6 (25...Qe6 26.Bg4 Qd6+–) 26.Ne8 Kh7 (26...e5 27.Qe5 Rf6 28.Qf6 Kg8 29.Qg7) 27.Qg7 1–0. Janek – kokong, internet, 2016.

6.Be2 Bd6 =.

6.Ne5 c5 7.bc5 Bc5 8.Be2 0–0 9.0–0 Qc7 (9...Nc6 10.Nd7 Nd7 11.a4=+) 10.f4 (10.c4 Bd6 11.f4 Rc8=) 10...Ne4 (10...Rc8 11.a4=) 11.Rf3 (11.c4 b5 12.Nd7 Qd7 13.cb5 ab5+=) 11...f6 12.Nd7 Nd7 13.Nc3 g5 (13...Nc3 14.Bc3 e5 15.d4=+) 14.Ne4 (14.Kh1 Nc3 15.Bc3 Bd6=) 14...de4 15.Rh3 gf4 (15...Qf4! 16.Bc4 Rae8=) 16.Bc4+/– Rae8? (better is 16...Kh8!? 17.Be6 Ne5+/–) 17.Be6+– Re6 18.Qg4 Kf7? (better is 18...Kh8 19.Qe6 Qc6+–) 19.Rh7 (19...Ke8 20.Qe6 Kd8 21.Bf6 Rf6 22.Rd7 Qd7 23.Qf6 Qe7 24.Qf4+–) 1–0. Turza,Pavel (1765) – Peterova,Jitka, Brno CZE Open–B, 2007.

5.Nf3 Nbd7

6.c4 b6 7.Nc3 Bb7 8.Be2 c5 9.Qb3 dc4–/+ 10.Bc4 b5 11.Be2 c4 12.Qc2= Nb6 13.0–0 Qc7 14.h3 Bd6 15.d3 Rc8 16.d4 Na4 17.Nd2 Nc3 18.Bc3 Nd5 19.Ne4 Be7 20.Nc5= Nc3 21.Qc3 0–0 22.a4 Bc5 23.dc5 Ra8 24.ab5 ab5 25.f3 f6 26.Rad1 Rfd8 27.Rd8= Rd8 28.Ra1 Ra8 29.Kf2 e5 30.Ra8= Ba8 31.Qa3 Bc6 32.Qa6 Qb7 33.Qb7= Bb7 34.Ke1 Kf7 35.Kd2 Ke6 36.Kc3 f5 37.Bc4 bc4 38.Kc4 Bc6 39.b5= Bd5 40.Kb4 Kd7 41.Ka5 Kc7 42.Ka6 Bc4 43.f4 ef4 44.ef4 Bf1 45.g4? fg4–/+ 46.hg4 h6 47.Ka5=+ Be2 48.Ka6 Bc4 49.Ka5 Be2 50.Ka6 Kb8 51.c6 Kc7 52.f5 Bd3 53.Ka5–/+ Be4 54.Ka6 Bc6 55.bc6 Kc6 56.Ka7 Kd6 57.Kb7 Ke5 58.Kc7 Kf6 59.Kd6 g6 60.fg6 Kg6 61.Ke5 Kg5 62.Ke4 Kg4 63.Ke3 Kg3 64.Ke2 Kg2 65.Ke3 0–1. Schinkmann,Karl – Rabitzsch,Manfred, GER–ch Seniors, 2001.

6.c4 b6 7.Nc3 Bd6 8.d4 =.

6.c4 b6 7.d4 Be7 =.

6.c4 dc4 7.Bc4 b5 8.Be2 Bb7 9.d4 =.

6.c4 dc4 7.Bc4 b5 8.Be2 c5 9.0–0 Bb7 10.bc5 Bc5 (10...Nc5 11.d4 Na4 12.Bc1=) 11.d4 Bd6 12.Nc3 (12.a4 b4=) 12...0–0=+ 13.Bd3 Rc8 14.Qe2 Ng4 (14...e5 15.e4 ed4 16.Nd4–+) 15.e4= Be7 16.Nd2 Ngf6 17.d5 ed5 18.e5 Ne8 19.Nf3 Nc7 20.Nd4 Re8 21.Nf5 Nc5 22.Qg4 Bf8?? 23.Nh6+– Kh8 24.Nf7 (24…Kg8 25.Nd8 Rcd8 26.Bf5+–) 1–0. Popkirova,Kalina – Rehberg,Anja, JBL NW, 1995.

6.c4 dc4 7.Bc4 c5 8.bc5 Bc5 9.d4 =.

6.c4 c5 7.bc5 Bc5 8.d4 Be7 =.

6.c4 c5 7.d4 cb4=+ 8.c5 ba3 9.Ba3 Nb8 10.Bd3= Nc6 11.0–0 Be7 12.Nc3 0–0 13.Na4 Rb8 14.Nb6 Ne4 15.Qb3 f5 16.Rab1 g5 17.Bb4 g4 18.Nd2 Nb4 19.Qb4 a5 20.Qa5+/– Bd7 21.Be2 Bc6 22.Ne4+– de4 23.Ra1 h5 24.Bc4 Rf6 25.Qa2 Kf7 26.Rfd1 h4? 27.d5 ed5 28.Bd5 Bd5 29.Rd5 (29...Qe8 30.Rd8 Kg6 31.Re8 Re8 32.Qd5+–; 29.Qd5?! Qd5 30.Rd5 Rd8 31.Rd8 Bd8=; 29.Nd5?! Ra6 30.Qb3 Ra1 31.Nf4 Kg7 32.Ra1 Qc8+/–) 1–0. lucya – chess219, gamecolony.com, 2007.

6.Bd3 Bd6 7.0–0 0–0 8.Qe2 e5 9.e4 =+.

6.d4 a5 7.b5 Nb6 8.Bd3 Bd6 9.0–0 0–0 10.Ne5 Na4 11.Ra2 =.

6.d4 b5 7.Nbd2 Bd6 8.Bd3 Nb6 9.0–0 0–0 10.Ne5 Na4 11.Ra2 =.

6.d4 b5 7.Bd3 Bd6 8.Nbd2 0–0 9.0–0 Bb7 10.Nb3 Ne4= 11.Na5 =.

6.d4 b5 7.Bd3 Bd6 8.Nbd2 Bb7 9.Ne5 0–0 10.0–0 Ne4 11.f3 =.

6.d4 Bd6 7.c4 =.

6.d4 Bd6 7.Bd3 a5 8.b5 c5 9.bc6 bc6 10.Nbd2 c5 =.

6.d4 Be7 7.Bd3 0–0 8.0–0 c6 9.c4 Qc7 10.Nc3 dc4 11.Bc4 Nd5 12.Ne4 N7b6 13.Bb3 Nf6 14.Nf6+= Bf6 15.Rc1 Rd8 16.Qd3 g6 17.h4 Qe7 18.h5 e5 19.hg6 hg6?? 20.Qg6+– Kf8 21.Qh6 Ke8?? 22.de5 Be5 23.Be5 Be6 24.Bf6 (24...Qf8 25.Qf8 (25.Bd8 Qh6 26.Bb6 Bb3=+) 25...Kf8 26.Bd8 Rd8 27.Be6 fe6 28.Rfd1 Rd1 29.Rd1+–) 1–0. Wall,Bill – Nutt, Internet, 2005.

6.Be2 Bd6 7.0–0 0–0 8.d4 Nb6 9.Ne5 Nfd7 10.Nd2 a5= 11.b5 =.

6.Be2 Bd6 7.0–0 e5 8.d3 Qe7 9.c4 =.

6.Be2 Bd6 7.d4 Nb6 8.0–0 0–0 9.Ne5 Nfd7 10.Nd2 a5 11.b5 =.

5.Nf3 Be7

6.c4 0–0 7.Nc3 c5 8.b5 (8.bc5 Bc5 9.d4 Be7=) 8...ab5+= 9.cb5 Nbd7 10.Be2 e5 11.Qb3 (11.d4!? cd4 12.ed4+=) 11...e4–/+ 12.Nh4 (12.Ng5!?–/+) 12...Nb6–+ 13.g3 (13.f3 d4 14.ed4 cd4 15.Ne4 Ne4 16.fe4 Bh4 17.g3 Bf6–+) 13...d4 14.Na2 Be6 15.Qd1 Na4 16.Qc1 Qa5 17.ed4 Nb2 18.Qb2 Qa3 19.Qc2 (19.Qa3 Ra3 20.dc5–+) 19...cd4 (19...Ba2?! 20.Nf5 cd4 21.Bc4 Bc4 22.Ra3 Ba3 23.Qc4–+) 20.d3 Bb3 21.Qc7 Qa5 (better is 21...Rfc8!? 22.Qe5 Bb4 23.Kf1–+) 22.Qa5 Ra5 23.Nf5 (23.de4 Bb4!! (worse is 23...Ra2 24.Ra2 Bb4 25.Kf1 Ba2 26.f3–+) 24.Kf1 Bc3–+) 23...Bb4! (23...Ra2?! 24.Ne7 Kh8 25.Ra2 Ba2 26.de4 Ne4 27.0–0–+; 23...Ba2?! 24.Ne7 Kh8 25.de4 Ne4 26.f3–+) 24.Kf1 ed3 25.Bd3 Ba2 26.Rc1 Bc3 27.f3 Be6 28.Nd6 Bd5 29.Kf2 Ra2 30.Rc2 Ng4! 31.Ke2 Rfa8 32.Rhc1 Ne3 0–1. Ranby,Hans (2195) – Masetti,Franco (2065), ICCF corr World Cup, 2000.

6.c4 0–0 7.cd5 ed5 8.Be2 =.

6.c4 0–0 7.cd5 Nd5 8.Nc3 c5 9.bc5 Bc5 10.d4 Be7 11.Bd3 Nd7 12.Nd5 ed5 13.0–0 Nf6 14.Qc2 Bg4 15.Ne5 Rc8 16.Qb1 Be6 17.Rc1 Qd6 (17...Qa5 18.Qa2=) 18.Rc8 (18.Bc3!?+=) 18...Rc8= 19.Qd1 Ne4 20.Be4 (20.a4!?=) 20...de4–/+ 21.Rc1 Rc1 22.Qc1 f6 23.Nc4 Qc6 24.Nd2 Qb5 (better is 24...Qc1!? 25.Bc1 f5+=) 25.Ne4+= Bf5 26.Nc3 Qc6 27.Ne2 Qc1 28.Bc1 b5 29.f3 Bd3 30.Nc3 Bc4 31.e4 Kf7 32.Kf2 Ke6 33.Ke3 Bd8 34.Bb2 Bb6 35.Nb1 Ba7 36.Nd2 Ba2 37.f4 Kd6 38.Kd3+– Bf7 39.Kc3 Bb6 40.Kb4 Kc6 41.d5 Kd6 42.Nb3 Bg8 43.Bd4+– Bd4 44.Nd4 g6 45.g3 Bf7? 46.Nb3 Bg8 47.Nc5 Kc7? 48.Na6 Kb6 49.Nc5 (49.Nc5 Kc7 50.Kb5+–) 1–0. Fournier,Frederic – JadePitter, Partie amicale, 5m + 2s, 2008.

6.c4 0–0 7.Ne5 =.

6.c4 c6 7.Nc3 Nbd7 8.cd5 ed5 9.Be2 Nb6 10.0–0 0–0 11.d3 Qc7 12.Rc1 Be6 13.e4 de4 14.Ne4 Nbd5 15.Be5 Qd8 16.Nd4 Ne4 (16...Nd7!? 17.Ne6 fe6=) 17.de4+/– Nf6 18.Ne6 fe6 19.Qb3 Qc8 20.Bc4 Kh8 21.Be6 Qe8 22.f3 Qg6 23.Rfd1 h5 (23...a5!? 24.Bd4 ab4 25.ab4+/–) 24.Rc3 h4 25.Bf5 Qh5 26.g4 hg3 27.hg3 g6? (better is 27...Rad8 28.Bd4 Qg5+–) 28.Rc2 Kg7 (28...gf5 29.Rh2 Qh2 30.Kh2 Rae8+–) 29.Rh2 Qg5 (29...Qh2 30.Kh2 gf5 31.Qe6+–) 30.f4 Qf5 31.ef5 gf5 32.Qe6 Rae8 33.Qf5 Rf7 34.Qg5 Kf8 35.Rh8 Ng8 36.Rg8 (36.Qg8) 1–0. Fournier,Frederic (2370) – Foxie (1610), echecsemail.com, 2008.

6.c4 c6 7.c5 0–0 (7...a5 8.Qa4=) 8.Bd3 a5 9.Nc3 (9.Qc2 Nbd7=) 9...b6 10.Na4 Nbd7 (10...bc5 11.Nc5 Nbd7 12.Qc2=) 11.Qc2 (11.cb6 ab4 12.ab4 Bb4=) 11...Ba6 (11...b5 12.Nb6 Nb6 13.cb6 Qb6 14.0–0+=) 12.Ne5 (12.Bf6 Bf6 13.Bh7 Kh8=) 12...bc5 (12...Bd3!? 13.Nd3 b5+=) 13.Nc6 (13.Nd7 Bd3 (worse is 13...Qd7 14.Ba6 Ra6 15.Bf6 Bf6 16.Nc5=) 14.Nf6 Bf6 15.Qd3 ab4–/+) 13...Qe8 (13...Bd3 14.Qd3 c4 15.Nd8 cd3 16.Nc6+=) 14.b5 (14.Ne7 Qe7 15.Ba6 Ra6 16.Nc5 Rc6 17.Bf6 Qf6+/–) 14...Bb7 (14...c4 15.Bc4 dc4 16.ba6+/– (16.Ne7?! Qe7 17.ba6 Rfc8=)) 15.Ne7+/– Qe7 16.Bf6 Qf6 17.0–0 c4 18.Be2 (worse is 18.Bh7 Kh8–/+) 18...e5 19.d3 Qg6 20.f3 Rfc8 21.Qc3 Qg5 (better is 21...cd3!? 22.Qd3 f5=) 22.dc4+/– dc4 23.Rad1 Rc7? 24.b6+– Nc5 25.bc7 Na4 26.Qd2 Rf8 27.Qa5 Qe3 28.Rf2 Nc3+/– 29.Re1 Qd2? 30.Kf1+– Qd4 31.Qb4 Ba6+/– 32.Qa5 Bc8 33.Rc1+– Nd5 Black prepares c3 34.Kg1 c3 35.Bf1 Bf5 36.g4 Be6+= 37.Be2 Rc8 38.Rd1+– c2 39.Rd4 c1Q 40.Rd1 Qc6 41.Bd3 Nf4?? 42.Bf1 Nd5? 43.Bd3 Nf4= 44.Be4 (44.Be4 Nh3 45.Kg2 Nf4 46.Kh1+–; 44.Bb5 Nh3 45.Kg2 Nf4 46.Kg3 Qc5 47.Rd8 Qf8+–) 1–0. Mathofer,Kurt – Dreckmann,Franz (1860), Ruhr–ch Seniors 4th, 1997.

6.c4 c6 7.cd5 cd5 8.d4 b6 9.Bd3 Bb7 10.Nbd2 Nbd7 11.Rc1 Rc8 12.0–0 Rc1 13.Qc1 0–0 14.Qc2 h6 15.Rc1 Bd6 16.e4 (16.Qd1!?+=) 16...de4+= 17.Ne4 Ne4 18.Be4 Be4 19.Qe4 Nf6 20.Qb7 a5 21.ba5 ba5 22.a4 Nd5 23.Bc3 Bb4 24.Bb4 Nb4 25.h3 Qa8 26.Qb5 Rb8 27.Qc5?? (27.Qd7 Rd8 28.Qc7 Nd5=) 27...Nd5?? (better is 27...Nd3 28.Qc6 Nc1 29.Qc1 Rb4–+) 28.Ne5= Rb4 29.Qc8 Qc8 30.Rc8 Kh7 31.Nf7 Rd4 32.Nd6 Ra4–/+ 33.Ra8 Ra1 34.Kh2 Ra2 35.Ne4 a4 36.Ra6 e5 37.Ra5–/+ Nf6 38.Re5 Ne4 39.Re4 a3 40.Ra4 g5 41.Kg3 Kg6 42.Ra5 h5 43.Kf3 h4 44.Kg4 Rf2–/+ 45.Rg5 Kf6–+ 46.Ra5 Rg2 47.Kh4 a2 48.Ra6 Ke5 49.Ra5 Kd6 50.Ra6 Kc5 51.Ra5? Kb4 52.Ra8 Kb3 53.Rb8 Kc2 54.Rc8 Kd1 55.Rd8 Ke1 56.Re8? Kd1 57.Rd8 Kc1 58.Rc8 Kb1 59.Rb8 Kc1 60.Rc8 Kb2 61.Rb8 Kc3 62.Ra8? Rh2 63.Rc8 Kb3 64.Rb8 Kc4 65.Rc8 Kb5 66.Rb8 Ka6 67.Ra8 Kb7 68.Ra3 Kb6 69.Ra4 Kb5–+ 70.Ra8 Rg2 71.Rb8 Kc4 72.Rc8 Kb3 73.Rb8–/+ Kc2 74.Rc8 Kb1 75.Rb8 Rb2 76.Rg8 a1Q 77.Rg1 Ka2 78.Ra1 Ka1 79.Kg5 Rb5 80.Kg6 Rb4 81.Kg5 Kb2 82.h4 Kc3 83.h5 Kd4 84.h6 Rb5 85.Kg6 Rb6 86.Kg7 Rb7 87.Kg8 Rb8 88.Kg7 Ke5 89.h7 Rb7 90.Kg8 Rb8 91.Kg7 Rb7 92.Kg8 Rb8 93.Kg7 ˝–˝. Fournier,Frederic – oscaceci (1785), Active, 2009.

6.c4 c6 7.cd5 ed5 8.Be2 b5 =.

6.c4 h6 7.Bd3 c6 8.0–0 0–0 9.Bd4 (9.Nc3 Nbd7+=) 9...b6 (9...dc4 10.Bc4 Nbd7 11.Qc2=) 10.c5 (10.Nc3 dc4 11.Bc4 Nbd7=) 10...b5 (better is 10...bc5!? 11.bc5 Nbd7–/+) 11.Nc3 Nbd7 12.Ne5 Qc7 13.Ng4?? (better is 13.f4+=) 13...Ng4 (better is 13...e5!? 14.Nf6 Nf6 15.Ne2 ed4 16.Nd4–+) 14.Qg4 Nf6?? (better is 14...e5 15.Qg3 Bd8 16.Nd5 cd5–+) 15.Qg3 Qg3 16.hg3 Nd7 17.e4?? (better is 17.f4=) 17...e5–+ 18.Be3? (18.Nd5 cd5 19.Bb2–+) 18...d4 19.Bd4 ed4 20.Ne2 Ne5 21.Bb1 d3 22.Nf4 (22.Nc3 Rd8 23.Ba2 Rd4–+) 22...Rd8 23.Ra2 g5 24.Nh3 Be6 25.Rb2 Bf6 26.Ba2 (26.Ra2 a5 27.ba5 Ba2 28.Ba2 Ra5–+) 26...Nc4 27.Bc4 Bb2 28.Be6 fe6 29.f4 g4 (29...Ba3!? 30.fg5 Bb4 31.Rd1 hg5 32.Ng5–+) 30.Nf2 h5 31.Rb1 Bd4 32.Kf1 Bg7 (32...a5!? 33.Nd3 ab4 34.ab4–+) 33.e5 a5 34.Ke1 (34.Ne4–+) 34...ab4 35.ab4 Ra4 36.Ne4 Rd4 37.Ng5 (37.Nd6 Rdb4 38.Rb4 Rb4–+) 37...Rdb4 38.Rb4 (38.Rd1–+) 38...Rb4 39.Ne6 Rc4 40.Nd8 Rc5 (40...b4 41.Nc6 Bf8 42.Nd4 Rd4 43.Kf2 Bc5 44.Kg1 b3 45.Kh2 b2 46.f5 Ra4 47.f6 b1Q 48.f7 Kf8 49.e6 Qg1) 41.e6 (41.Ne6 Rc2 42.Nd4–+) 41...Kf8 (41...Rc1 42.Kf2 Bd4) 42.Kf2 (42.e7 Ke7 43.Nc6 Rc6 44.Kd1 Bb2 45.Ke1 Rc1 46.Kf2 Bd4) 42...Bd4 (42...Bd4 43.Ke1 Rc1) 0–1. mgoodrich (2445) – ekosachro (2390), net–chess.com, 2015.

6.d3 a5 7.b5 =.

6.d3 h6 7.Be2 0–0 8.0–0 c5 9.bc5 Bc5 10.Nbd2 b5 (10...Nc6 11.c4=) 11.c4+= Bb7 12.cb5 ab5 13.d4 Bd6 14.Bb5 Bc6 (14...Ba6 15.Ba6 Na6 16.Qe2+=) 15.a4 Bb5 16.ab5 Ra1 17.Qa1 Qb6 18.Qa4 Nbd7 19.Bc3 Qb7 20.Ra1 Nb6 21.Qa6 Rb8 (21...Qc7 22.Ba5 Rb8 23.Nf1+=) 22.Ba5 Bc7 (22...Qc7 23.Rb1+=) 23.Nb3 Bd6 24.Nc5 Qa6 (24...Qc7 25.Rc1+/–) 25.ba6+– (worse is 25.Na6 Rb7 26.Nc5 Ra7+/–) 25...Na8 26.Nb7 Be7 27.Rc1 Kf8 (27...Nd7 28.a7 Rb7 29.Rc8 Kh7 30.Ra8+–) 28.Ne5 (28.a7 Re8+–) 28...Ne4?? (28...g6+–) 29.Nd7 (29.Nd7 Kg8 30.Nb8+–) 1–0. Rosner,Dirk – Butt,Christian, Tiger SC, 2001.

6.Bd3 Nc6 7.0–0 0–0 8.c4 Bd7 9.Nc3 dc4 10.Bc4 b5 11.Be2 e5 12.d4 ed4 13.Nd4 Nd4 14.Qd4 Be6 15.Bf3 Qd4 16.ed4 Rad8 17.Rfe1 Bd6 18.Ne4 Ne4 19.Be4 Bc4 20.Bb7 Rb8 21.Bc6 (worse is 21.Ba6 Rb6 22.Bb5 Rb5–/+) 21...Rfd8 22.g3 Be6 23.Rac1 h6 24.Re3 Kh7 25.d5 Bd7 26.Be5 Bc6 27.Rc6 Ra8 28.Bd6 Rd6 (28...cd6 29.Re7 Kg6 30.Rcc7+/–) 29.Rc7 Rd5 30.Rf7 Rd1 31.Kg2 Rc1 (31...Rad8 32.Ree7 Rg8 33.Ra7+–) 32.Ree7 (32.f4 Rac8+–) 32...Rg8 33.Ra7 White is in command 33...Kg6 34.Rfc7 Rc7 35.Rc7 Rf8 (35...Ra8 36.h4+/–) 36.Rc6 Rf6 37.Rf6 Kf6 38.Kf3 Kf5 39.Ke3 Ke5 40.f4 Kd5 41.Kd3 g5 (41...h5+–) 42.fg5 hg5 43.h4 gh4 (43...g4 44.h5 Ke5 45.h6+–) 44.gh4 Ke5 45.h5 Kf5 46.Kd4 (46.Kd4 a5 47.ba5+–) 1–0. Rosner,Dirk – Nittschalk, e–mail, 1999.

6.Be2 Bd6 =.

6.Be2 Bd7 7.0–0 0–0 8.Ne5 Nc6 9.Nd7 Qd7 10.d3 e5 11.Nd2 Qd8 12.Bf3 b5 13.c4 Na7? (better is 13...bc4!? 14.dc4 e4+/–) 14.Be5+– c6 15.cd5 cd5 16.Qb3 Nc6 17.d4 Bd6 18.Bf6 Qf6 19.Qd5 Ne7 20.Qh5 Rad8 21.Ne4 Qg6 (21...Qe6 22.Ng5 Qg6 23.Qg6 Ng6 24.Rac1+–) 22.Qg6 hg6 23.Nc5 Ra8 (23...Bc5 24.bc5 Nd5+–) 24.Ba8 Ra8 25.a4 ba4 26.Ra4 Nd5 27.Rc1 Kf8 28.b5 Nb6 (28...a5 29.Na6 g5+–) 29.Ra6 Bc5 (29...Ra6 30.ba6 Ke7+–) 30.Ra8 Na8 31.dc5 Nc7 32.b6 Na6 33.c6 (33.c6 Ke7 34.c7 Nc7 35.bc7 f6 36.c8Q g5 37.Rc7 Kd6 38.Qd7 Ke5 39.Rc5 Ke4 40.Qd5) 1–0. Woelfelschneider,Peter – Nittschalk,Karl, TT–18.05 ETC, 2005.

6.c4 dc4

7.Bc4 0–0 8.0–0 b5 9.Be2 Bb7 10.d4 c6 11.Nbd2 Nbd7 (11...a5 12.ba5 Qa5 13.Bd3=) 12.Rc1 (12.Nb3 Qc7+/–) 12...Nd5 (12...a5 13.ba5 Qa5 14.Qc2=) 13.Ne4 (13.Nb3 Bd6+/–) 13...N7f6 14.Nf6 Bf6 15.Bd3 h6 16.Qc2 g6 (16...a5 17.ba5 Qa5 18.Nd2+=) 17.Rfd1 Kg7 (17...a5 18.e4 Nf4 19.Bf1+=) 18.Be4 (18.e4 Nf4+/–) 18...Rc8 (18...a5 19.ba5 Qa5 20.Qb1+=) 19.Qb1 Ne7 (19...a5 20.Bc3+/–) 20.Rc3 (20.Ne5!?+/–) 20...Nd5 21.Bd5 (21.Rc2!?+=) 21...cd5= (worse is 21...Qd5 22.Rc5 Qd8 23.Ne5+/–) 22.Rdc1 Rc3 23.Rc3 h5 24.Qc1 Qb8 25.Rc7 (25.Ne5 Be5 26.de5 Rc8+=) 25...Rc8= 26.Rc8 Bc8 27.Ne5 Bb7 28.Nd7 Qd8 29.Nf6 Qf6 30.Qc7 h4?? 31.Qb7+– Qf5 32.Bc1?? Qd3?? 33.Qc7?? Qd1 0–1. Fournier,Frederic (1820) – rolis, Active, 2006.

7.Bc4 0–0 8.d4 b5 9.Bd3 Bb7 10.Nbd2 Ng4 11.0–0 f5 12.h3 Nf6 13.Rc1 Ne4 14.Ne5 Nd2 15.Qd2 Bd6 16.f4 Be5 17.de5 Be4 18.Rfd1 Bd3 19.Qd3 Qd3 20.Rd3 a5 (20...c6 21.Rd6 Kf7 22.Bd4+=) 21.ba5 Na6 22.Bc3 (22.Rc6 Rfc8 23.Bc3 Nb8+–) 22...Rad8 (22...Nc5 23.Rdd1 Rfc8 24.Rb1+=) 23.Rcd1 Rd3 24.Rd3 Nc5?? (24...Rc8 25.Rd4+/–) 25.Rd1 (better is 25.Bb4 Nd3 26.Bf8+–) 25...Ra8+/– 26.Bb4 Nb7 Attacks the isolani on a5 (26...Nb3 27.Kf2+=) 27.Rd7+/– Na5 28.Rc7 Nc4 29.Rb7 Na3 30.Kf2 Ra4 (30...Nc4 31.Rb5 Ra2 32.Kf3+/–) 31.Ba3 Ra3 32.Rb5 Ra6 33.Rb7 h6 34.g4 fg4 35.hg4 Kh7 36.Kf3 Kg6 37.Rb3 h5 38.gh5 (38.Rb7 hg4 39.Kg4 Kh7+–) 38...Kh5 39.e4 (39.Rb2 Ra8+–) 39...Kg6 (39...Ra7!?+/–) 40.Kg4 White prepares f5 40...Rc6 41.Rd3 Rc1 42.f5 ef5 (42...Kf7 43.Rd7 Kf8 44.Rd6+–) 43.ef5 Kh6 (43...Kf7+–) 44.Rh3 1–0. Fournier,Frederic (1980) – NN, jeu.europe–echecs.com, 2013. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.a3 a6 5.e3 Be7)

7.Bc4 b5 8.Be2 Bb7 9.0–0 0–0 10.d3 Nbd7 11.Nbd2 c5 12.Nb3 (12.bc5 Nc5 13.Bd4 Rc8+=) 12...Rc8 (12...cb4 13.ab4 Bb4 14.Qb1–/+) 13.Rc1 (13.bc5 Nc5 14.Nc5 Bc5=) 13...Rc7 (better is 13...cb4!? 14.Rc8 Qc8 15.ab4 Bb4–/+) 14.Bf6= Bf6 (14...gf6 15.bc5 Nc5 16.Nc5 Bc5 17.a4=) 15.Nc5+= Nc5 16.Rc5 Qd7 17.Rc7 Qc7 18.Qc1 (18.d4 Qc3 19.Qd3 Rc8+=) 18...Rc8 19.Qc7 Rc7 20.d4 Rc2 21.Re1 Ra2 22.Kf1 Ra3 23.Rc1 (23.Ne5 Be5 24.de5 Rb3–/+) 23...h6 (better is 23...Be7!?–/+) 24.Rc7 Bd5 25.Ne1 Ra1 26.f3 Bg5 27.Bd3 g6 28.Ke2 Kg7 29.e4 (better is 29.Nc2!? Rg1 30.Kf2=) 29...Bb3–/+ 30.Ra7? (better is 30.Nc2!? Ra2 31.Rc3 Bc2 32.Bc2–/+) 30...Bd1 31.Kf2 Ra4 (better is 31...Ra2 32.Kf1 Be3–+) 32.g3? (32.Bc2 Bc2 33.Nc2 Bd2–/+) 32...Bd2?? (32...Ra2 33.Kf1 Be3 34.Ng2 Rf2 35.Kg1 Bd4 36.Rd7–+) 33.Bc2? (better is 33.Nc2–/+) 33...Be1–+ 34.Ke1 Bc2 35.Kd2 Bb3 36.Kc3 Bd1 (36...Bc4 37.e5–+) 37.f4 Ra3 38.Kb2 Rb3 39.Kc1 Bf3 (39...Rb4?! 40.Kd1 Rd4 41.Kc1 Re4 42.Ra6–+) 40.e5 Rb4 41.Ra6 Rd4 42.Rb6 Rd1 43.Kc2 Be2 (better is 43...Rh1 44.h4–+) 44.h3 (44.Rb5 Rh1 45.Rb2 Rh2–+) 44...Rh1 45.Kd2 Bc4 46.h4 Rg1 0–1. Hal1958 – Andy1, playchess.de, 2005.

7.Bc4 b5 8.Be2 c5 9.bc5 Bc5 10.0–0 Bb7 11.d4 Be7 12.Nbd2 0–0 13.Rc1 Nc6 14.Bd3 h6 15.Qc2 Rc8 16.Qb1 Na5 17.Rc8 Qc8 18.Rc1 Qd7 19.Ne4 (19.Ne5!? Qd6 20.Rc3=) 19...Ne4 20.Be4 Be4 21.Qe4 Rc8 22.Rc8 Qc8 23.Ne5 Nc4 The isolani on a3 becomes a target 24.Qb1 (24.Qc2 Bd6+=) 24...Nb2 (better is 24...Na3!? 25.Ba3 Ba3–/+) 25.Qb2+= Bd6 26.Nf3 (26.Nd3!?+=) 26...Qc4–/+ 27.g3 g5 28.Nd2 Qd3 29.Nb1 a5 30.Kg2 b4 31.ab4 Bb4 32.Kg1 Kh7 33.Kg2 Kg6 34.h3 h5 35.Kg1 g4 (35...h4 36.gh4 gh4 37.Qa2–+) 36.hg4 (36.h4!?–/+) 36...hg4–+ 37.Kh2 f5 38.Kg2 Qe4 39.Kg1 Kf7 40.Nd2 Bd2 41.Qd2 Qb1 42.Kg2 a4 43.Qa5 Qb3 44.Qc7 Kf6 (44...Kg6!?+=) 45.Qd8= Kf7 46.Qd7 Kg6 47.Qe8 Kf6 48.Qf8 Kg6 49.Qg8 Kf6 50.Qf8 Kg6 51.Qg8 Kf6 52.Qf8 ˝–˝. Fournier,Frederic – Keapcool, Partie evaluee, 5m + 2s, 2008.

7.Bc4 b5 8.Be2 c5 9.bc5 Bc5 10.Qc2 Bd6 (10...Be7 11.0–0=) 11.e4 c7 (11...Be7 12.Nc3=) 12.Bd1 (12.Qc7 Bc7 13.d3 Nbd7=) 12...Nc6 (12...Nbd7 13.d4 Bf4 14.Nc3=) 13.d4 Nd7 14.d5 (14.Nbd2 Bb7=) 14...Nce5 (14...ed5 15.ed5 Ne7 16.Bg7 Qc2 17.Bc2=) 15.de6 fe6 (15...Nf3 16.gf3 fe6 17.Bg7 Qc2 18.Bc2 Rg8=) 16.Nfd2 (16.Nbd2 0–0=) 16...Nc5 (16...0–0 17.0–0+=) 17.0–0 (17.Bh5 g6 18.Be2 0–0+=) 17...0–0–/+ 18.Be2 (18.Bd4 Bb7–/+) 18...Bb7 19.f3 (19.Nc3 Na4–/+) 19...Ng6 20.g3? (better is 20.h3–/+) 20...Bg3!–+ 21.hg3 (21.Kh1–+) 21...Qg3 22.Kh1 Rf4 (22...Rf4 23.Bf6 gf6 24.Rf2 Rh4 25.Rh2 Rh2#) 0–1. Bonetti,Shane – Ajedremundi (2745), ICC, 2002.

5.f4 c5=+

6.bc5 Bc5 7.Bd3 Qb6 8.Nc3 Qb2 9.Na4+/– Qa1 10.Qa1 Be7?? 11.Nb6+– Ra7 12.Nc8 Nbd7 13.Na7 e5 14.fe5 (14.Qe5 Ne5) 1–0. Schulz,Hans_Juergen – Munkwitz,Wolfgang, TT–15.23 ETC, 2005.

6.bc5 Bc5 7.Bd3 d4 8.ed4 Bd4 9.Bc3 =+.

6.bc5 Bc5 7.Nf3 0–0 8.Bd3 Nc6 9.0–0 Qb6 10.Be5 Ne5 11.fe5 Nd7 12.Nc3 d4 13.Na4 Qa5?? 14.Nc5+– Nc5?? 15.Bh7! (15...Kh8 16.Ng5 Qd2 17.Qd2+–; 15.ed4?! Nd3 16.cd3 Qd8+=) 1–0. Eralos (2035) – aribau (1925), ajedrez21.com, 2001.

4...b6

5.b5 a6 6.a4 c5 7.bc6 (7.Nf3 Bd6=+) 7...Nc6 8.Nf3 Bb7 (8...Bd6 9.Ba3=+) 9.Be2= Rc8 10.0–0 Bd6 11.Na3 (11.Ba3 Ba3 12.Na3 0–0=) 11...e5 (11...0–0 12.c4=+) 12.c4 (12.Nh4 0–0=+) 12...d4 (12...e4 13.Ne1=+) 13.Nh4 (13.ed4!? ed4 14.Nc2=) 13...0–0–/+ 14.Nf5 Bc5 15.d3 g6 (15...Re8 16.Nc2=+) 16.ed4 Ba3 (16...ed4 17.Ng3=+) 17.Nh6= Kg7 18.Ra3 (18.Ba3 Kh6 19.de5 Ne5 20.Bf8 Qf8=) 18...Nd4=+ 19.Ng4 Ng4 20.Bg4 f5 21.Bd4 Qd4 22.Bf3 Bf3 23.Qf3 e4 24.Qf4 Rfd8 25.de4=+ Qe4 26.Qg3 Qc4 27.h4 Re8 28.Rd1 Re7 29.Re3 Rce8 30.Qg5? Re3–+ 31.fe3 Qa4 32.Rd5 Qb3 33.Rd7 Kg8 34.Rd8 Qe6 35.Re8 Qe8 36.h5 Kf7 37.h6 Qe5 38.Kf2 Qf6 39.Qf4 g5 40.Qc4 Kg6 41.Qa6 Qb2 42.Ke1 Kh6 43.Qc8 Qb4 44.Ke2 Qb5 45.Kf2 Kh5 46.Qc7 Qb2 47.Kg3 Kg6 48.Qc6 Qf6 49.Qd5 h5 50.Kf2 h4 51.Kg1 g4 52.Kh2 Kh6 53.e4 f4 54.e5 Qf5 55.Kg1 Kh5 56.Qb5 Kg5 57.Qb6 Qe5 58.Qd8 Kh5 59.Qd1 f3 60.Kf2 Qg3 61.Ke3 fg2 (62.Ke4 Kg6–+) 0–1. Walker,D – Blatny,P, Oakham, 1986.

5.b5 Bb7 6.Nf3 Be7 7.d4 0–0 8.Bd3 c5 9.bc6 Nc6 10.Nbd2 Na5 11.c4 dc4 12.Nc4 Nc4 13.Bc4 Rc8 14.Bd3 Qd5 15.0–0 Ne4 16.Qe2 Qb3 17.Ne5 Nc3 18.Qh5 Be4 19.Bc3 Bd3 20.Nd3 Rc3 21.Nf4 Ba3 22.d5 ed5 23.Nd5 Rd3 24.e4 Qc2 25.Qg4 Kh8 26.h4 Rb3 27.Ne3 Qc3 28.h5 h6 29.Nf5 a5 30.Rad1 Qf6 31.f4 Bc5 32.Kh1 Rb4 33.Rfe1 Rg8 34.e5 Qe6 35.Rd8 g5 36.hg6 Rd8 37.gf7 Qf7 38.e6 Qf6 39.e7 Re8 40.Re6 Qa1 0–1. Smolensky – Morozov, corr 1967–69.

5.c4 dc4 6.Bc4 Bb7 7.Nf3 Nbd7 (7...a5 8.b5= Bd6 9.Nc3 0–0 10.d4 Nbd7 11.0–0 h6 12.Qc2 Bf3; 7...Bd6 8.Nc3 Qe7 9.Nb5 Nbd7 10.0–0 0–0 11.Qe2 a5 12.Rfc1 h6) 8.0–0 (8.Nc3 a5 9.b5 (9.Qb3 ab4 10.ab4 Ra1 11.Ba1 Be7 12.Bb2 0–0) 9...Bd6= 10.0–0 0–0 11.d4 h6 12.Qe2 Ne4) 8...Bd6 (8...a5 9.b5= Bd6 10.Nc3 0–0 11.d4 h6 12.Qc2 Qe7) 9.d4 (9.Nc3 0–0+= 10.Nb5 Qe7 11.Be2 Rfc8 12.Rc1 a5) 9...0–0= 10.Nbd2 (10.Nc3 a5 11.b5 Qe7 12.Qe2 e5) 10...Qe7 11.Be2 (11.Qc2 e5= 12.Bb5 e4) 11...c5 (11...a5 12.b5= c5) 12.Nc4+= (12.dc5 bc5) 12...Bc7 13.dc5 bc5 14.b5 (14.Qc2 Be4 15.Bd3 Bd3 16.Qd3 Rfd8=) 14...Rfd8 15.Nfd2 (15.Qb3 Bd5=) 15...a6+= 16.ba6 Ra6 17.Qc2 Ra7 (17...h5 18.h3=) 18.Bf3 (18.Rab1 Bc6=) 18...Nd5 (18...Nb6 19.Bb7 Nc4 20.Nc4 Rb7 21.Rab1=) 19.g3= Bc6 20.Bg2 (20.Rab1 Qg5=) 20...h5 (20...Ba4 21.Qc1+=) 21.e4 N5b6 (21...Ba4 22.Qc1 N5b6 23.Rb1+=) 22.Qc3 (22.Rab1!?+=) 22...e5 23.Ne3 (23.Rab1 Na4 24.Qc2 Nb2 25.Rb2 h4+=) 23...Nf6 24.Rfd1 (better is 24.Nf5 Qf8 25.Rfb1–/+) 24...Rd4 (24...Na4 25.Qc2–/+) 25.Qc2 (25.Nf5 Qf8 26.Nd4 ed4=) 25...Rd8 (25...Ba4!? 26.Nb3 c4 27.Nd4 Bc2 (27...ed4?! 28.Nf5 Qe8 29.Qc1=) 28.Ndc2 Qe6–+) 26.Rdc1 Na4 27.Ndc4 g6 28.Rd1 Nb2 29.Nb2 Rd1 30.Nbd1+= Ra4 31.Nc4 Ra8 32.a4 Qd8 33.Ndb2 Qd4?? 34.Rd1+– Be4 35.Qc1 1–0. Hasangatin,Ramil (2485) – Pedersen,Christian Kyndel (2355), 3rd Autumn, Alushta UKR, 2004.

5.c4 c5 6.cd5 cb4 7.de6+= Be6 8.ab4 Nbd7 9.Bc3 g6 (9...Nd5!?+=) 10.Bb5+/– Bg7 11.Bc6 Rc8 12.Bd7 (12.Bb7!? Rc7 13.Ra7+/–) 12...Qd7+= 13.Nf3 0–0 14.0–0 Bg4 (14...Rc7 15.Be5 Rc4 16.b5+/–) 15.h3 (15.Ne5 Bd1 16.Nd7 Nd7 17.Rd1 Rc7+–) 15...Bf3 16.Qf3 (16.gf3 Qh3 17.Ra7 Rcd8–/+) 16...Qd5 (16...Nd5 17.Bg7 Kg7 18.b5+/–) 17.Qd5 (17.Bf6 Qf3 18.gf3 Bf6 19.Ra7 Rc4+/–) 17...Nd5 18.Bg7 (18.Ra7!? Bc3 19.Nc3 Nc3 20.dc3 Rc3+–) 18...Kg7+/– 19.b5 Rc5 20.d4 Rb5 21.Ra7 Rb8 22.Rc1 Rb2 23.e4 (23.Na3 b5+/–) 23...Nf6 (better is 23...Nf4!? 24.Rd1 Ne2 25.Kh2 Nd4 26.Rd4 Rb1+/–) 24.e5+– Ne8 (24...Nd5 25.e6 Kf6 26.ef7+–) 25.d5 Rd2?? (better is 25...Rd8 26.Rd1 Re2+–) 26.d6 (better is 26.Nd2 Rd8 27.d6 Nd6 28.ed6 Rd6 29.Ne4+–) 26...Nd6 (26...Rd5 27.d7 g5+–) 27.Nd2 (27.Nd2 Rb7 28.Rca1 Ra7 29.Ra7+–) 1–0. Yannick – Matu, playchess.de, 2005.

5.c4 Bd6 6.Qf3 =.

5.d3 Bb7 6.Nd2 (6.Nf3 c5=) 6...c5+= 7.b5 (7.bc5 Bc5 8.Qf3 Be7+=) 7...Nbd7 8.Ngf3 Qc7 (8...Be7 9.Be2=) 9.d4 (9.Be2 Bd6+=) 9...c4+= 10.c3 (10.Bc3 a6+=) 10...Bd6 11.h3 (11.Be2 a6–/+) 11...0–0 (11...a6 12.ba6 Ra6 13.g4–/+) 12.Be2 (12.g4 a6–/+) 12...h6 (12...a6 13.a4–/+) 13.0–0+= Nh7 (13...a6 14.ba6 Ra6 15.Ra2–/+) 14.h4 (14.Qc2 a6 15.a4 ab5 16.ab5 Ndf6+=) 14...f5 (14...a6 15.a4–/+) 15.Ne1 (15.a4 a6+=) 15...Bh2 (15...a6!?–/+) 16.Kh1= Ndf6 (16...Bd6 17.Kg1 a6–/+) 17.f4 (better is 17.g3 Bg3 18.fg3 Qg3 19.Ng2+=) 17...Bg3–/+ 18.h5 (18.a4 Bh4 19.Ba3 Rfc8–/+) 18...Ne4 (18...Qe7 19.Kg1 Ne4–/+) 19.Ne4 (19.Kg1 Qe7 20.Nef3 Qe8–/+) 19...fe4 (better is 19...de4!? 20.Nc2 Qe7–+) 20.Bg4–/+ Qe7 21.Bh3 Nf6 22.a4 Qf7 23.Bg4 (23.Ba3 Rfd8–/+) 23...Bc8 (23...a6 24.Ba3 Rfe8 25.Nc2–/+) 24.Ba3 (24.Nc2 Qc7+= (worse is 24...Ng4 25.Qg4 Bf4 26.Qe2+/–)) 24...Rd8 25.Nc2 Kh7 (25...Bd7 26.Nb4+=). Dabrowski,Bohdan – NN, ZDK–Sarzyna Poland, 1985.

5.d3 c5 6.bc5 Bc5 7.Qf3 +=.

5.d4 c5 6.bc5 bc5 7.Nd2 Nc6 8.Bb5 Qb6 9.c4 Rb8 10.dc5 Bc5 11.Rb1 0–0?? (11...a6 12.Bf6 ab5 13.Rb5 Qa7 14.Rb8 Qb8 15.Bg7 Rg8 16.cd5 Rg7 17.dc6 Rg2+/–) 12.Bf6+– gf6 13.Bc6 Qc7 14.Rb8 Qb8 15.cd5 Qd6 16.Ne4 Qe5 17.Qg4 Kh8 18.Nc5 Qc3 19.Kd1 Qc5 20.Qb4 Qb4 21.ab4 Rd8 22.e4 f5 23.f3 fe4 24.fe4 f5 25.ef5 ed5 26.f6 Kg8 27.Ne2 Rd6 28.b5 Rf6 29.Bd5 Kg7 30.Bf3 Rb6 31.Nc3 a6 32.ba6 Ra6 33.Kd2 Rd6 34.Ke1 Rd3 35.Ne2 Ra3 36.Kf2 Ba6 37.Rd1 Ra2 38.Rd7 Kh8 39.Ra7 Bc4 40.Ra2 Ba2 41.g4 h6 42.Nd4 Kg7 43.h4 Kg6 44.Be4 Kf6 45.Nf5 Kg6 46.Ke3 h5 47.Ng3 Kh6 48.g5 Kg7 49.Nh5 Kg8 50.Nf6 Kg7 51.h5 Bf7 52.h6 Kh8 53.Kf4 Bg6 54.Ng4 Kh7 55.Bg6 Kg6 56.Ne5 Kh7 57.Kf5 Kg8 58.Kf6 Kh8 59.Kf7 Kh7 60.g6 Kh8 61.g7 1–0. Loulou – Rumata, HCL–B1739 playchess.de, 2003.

5.d4 Be7 6.Nd2 0–0 7.Ngf3 Nbd7 8.c4 Bb7 9.c5 c6 10.Bd3 a5 11.0–0 Ba6 12.Ba6 Ra6 13.Qe2 b5 (13...Ra8 14.Rfc1=) 14.Bc3 a4 15.e4 h6 16.Rae1 Re8 17.h3 (17.e5 Nh7+=) 17...Nh7 18.Nh2 Ra7 19.f4 de4 20.Ne4 Ndf6 21.Nf3 Ne4 22.Qe4 Qd5 23.Qd5 ed5 24.Nd2 Kf8 25.g4 Bh4 26.Re5 Rae7 27.Nf3 Bf6 28.Re7 Re7 29.Re1 Re1 30.Be1 Ke7 31.h4 g6 32.g5 hg5 33.fg5 Bg7 34.Bg3 Ke6 35.Kf2 Kf5 36.Ke3 f6 37.Bf4 fg5 38.hg5 Nf8 (38...Kg4!?=) 39.Be5+= Be5 40.Ne5 (40.de5?! Ne6+=) 40...Kg5 41.Nc6 Ne6 42.Ne7 Nc7 43.Nc6 Kg4 44.Ne7 g5 (44...Kg5 45.Kf3+=) 45.Nd5+= Nd5 46.Ke4 Ne7 47.d5 Kh3 48.d6 Nc6 49.Kd5 Nb4 50.ab4 a3 51.d7 (better is 51.c6 a2 52.c7+–) 51...a2 52.d8Q a1Q 53.Qg5 Qh1 (53...Qa2 54.Kd6 Qc4 55.Qe3 Kg2 56.Qd2 Kh3 57.c6+–) 54.Kd6 Qf1 55.c6 Qf8 56.Qe7 Qf4 57.Kd7 Qd4 (57...Kg2 58.c7 Qg4 59.Qe6 Qg7 60.Kc6 Qc3 61.Kb6 Qb4 62.Qd5 Kh3 63.c8Q Kh4 64.Qh8 Kg3 65.Qd3 Kg2 66.Qe2 Kg3 67.Qhh2) 58.Kc8 (better is 58.Qd6 Qg7 59.Kc8+–) 58...Qc4 (58...Kg2 59.c7 Qg4 60.Kb7 Qf3 61.Kb6+–) 59.Kb7 1–0. Kalanyos,Ferenc (2005) – Weisz,Tamas, HUN–chT2 Asztalos, 2005.

5.Nf3 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 b6).

5.Nf3 Bd7 6.c4 c5 7.bc5 bc5 8.cd5 ed5 9.Be2 c4 (9...Bd6 10.Qc2=) 10.0–0 Bg4 11.d3 cd3 12.Qd3 Be7 13.Nbd2 0–0 14.h3 Bh5 15.Nd4 Bg6 16.Qb3 Nbd7 17.N2f3 Rb8 18.Qc3 Ne4 19.Qc1 Rc8 (19...Bf6 20.Rb1 Qc8 21.Bd3=) 20.Qd1 (20.Nc6 Bf6 21.Nd8 Rc1 22.Rac1 Bb2+/–) 20...Ndf6 (20...Bf6 21.Ba6 Rc5 22.Bd3=) 21.Nh4 Nc3 22.Bc3 Rc3 23.Ng6 fg6 (23...hg6 24.Qa4 Qd7 25.Qd7 Nd7+=) 24.Qd2 (better is 24.Ne6 Qd6 25.Nf8 Kf8 26.Qd4+–) 24...Ne4= (worse is 24...Ra3 25.Ne6 Ra1 26.Ra1+/–) 25.Qb2 Rc8 (better is 25...Qa5!?=) 26.Ne6+/– Bf6 27.Nd8?? Bb2+= 28.Ra2 Be5 29.Ne6 Rf6 30.Nd4= Rcf8 31.f3 Ng3 32.Rd1 Nf5? 33.Nf5+/– gf5 34.Rd5 Bg3 35.Bc4 Kh8 36.Rad2 f4 37.e4 Be1 38.Rd1 Ba5?? 39.Ra5 1–0. Fournier,Frederic – luismanoestonto, Active, 2008.

5.Nf3 Nbd7 6.Nd4 c5 7.Nc6 Qc7 8.b5 Bb7 9.Bf6 Nf6 (9...Bc6?! 10.Bb2 Bb7 11.Nc3=) 10.Nc3 a6 11.a4 Bc6 12.bc6 Bd6 13.h3 0–0 14.Be2 Qc6 15.0–0 Qc7 16.Nb1 Rfd8 17.c4 d4 18.Bf3 Rab8 19.Qb3 Be5 20.Ra2 Rd7 21.Re1 de3 22.de3 Rbd8 23.Rd1 Rd1 24.Bd1 Ne4 25.Bf3 Ng5 26.Be2 Ne4 (26...Bh2 27.Kh1 Bd6 28.Rb2–/+) 27.Bf3 Ng5 (27...Qc6 28.g3–/+) 28.Be2 Ne4 (28...Bh2 29.Kh1 Bd6 30.Rb2–/+) 29.Bf3 Nf6 (29...Bh2 30.Kh1 Ng5 31.Be2–/+) 30.Rd2 (30.Bd1 Rd7 31.f4–+) 30...Rd2 31.Nd2 Qd8 32.Nf1 h6 33.Bb7 a5 34.Bc6 g5 35.Bf3 Kg7 36.Kh1 Ne8 37.Qb1 Nf6 (better is 37...f5!?–/+) 38.Kg1 Qd6 ˝–˝. Wehmeier,Sven (1740) – Spoeler,Gerd (1680), Muensterland Verbandsklasse–A, 2003.

5.f4 c5 6.bc5 bc5 7.Nf3 Nbd7 8.Bb5 Rb8 9.Nc3 a6 10.Bd7 Bd7 (10...Kd7? 11.Ne5 Ke8 12.Nc6+–) 11.Rb1 Bd6 12.Ne5 0–0 13.0–0 Be8 14.Qf3 Qc7 15.Ng4 Ng4 16.Qg4 f5 17.Qg3 Bc6 18.h4 d4 19.ed4 cd4 20.Ne2 Rf6 21.h5 (21.Bd4? Rg6 22.Rb8 Qb8–+) 21...e5 22.Qh3 Bb5 23.fe5 Be5 24.Rfe1 Be2 25.Re2 Qc2 26.Rbe1 Qb2 27.Re5 Qd2 28.Qf3 Qc3 29.Qd5 Kh8 30.Re8 Rf8 31.R8e7 d3 (31...Qa3? 32.h6 Rg8 33.hg7 Rg7 34.Qd4 Qe7 35.Re7+–) 32.h6 gh6 33.Qd7 (33.Qd6 Rg8 34.Qh6 Rg7 35.Re8 Re8 36.Re8 Rg8 37.Rg8 Kg8 38.Qg5 Kf7 39.Qf5 Ke7 40.Qh7 Kd8 41.Qg8 Kc7 42.Qf7 Kb6 43.Qe6 Ka5–/+) 33...Rf7 (better is 33...Rbd8 34.Qb7 Qd4 35.Kf1 d2–+) 34.Qd6–/+ Rbf8 35.R7e6? (better is 35.Re8 Qg7 36.Qd3–/+) 35...Rf6 36.Qe7?? (36.R1e5 Kg7 37.Kh2–+) 36...d2 37.Rd1 (37.Rb1 R6f7 38.Qb4 Qc1 39.Kh2 d1Q 40.Rc1 Qc1 41.Ra6 f4 42.Qd4 Kg8–+) 37...Qc2 38.Kh2 (38.Rd2 Qd2 39.Ra6–+) 38...Qd1 39.Rf6 Qh5 0–1. Campos Calvo Sotelo,Juan – Saavedra Victor, 2001.

5.c4 Bb7

6.Nf3 dc4 7.Bc4 c5 8.bc5 Bc5 9.0–0 =.

6.Nf3 c6 7.Nc3 Nbd7 8.cd5 cd5 9.Be2 Be7 10.0–0 0–0 11.h3 e5 12.Qb3 Rc8 13.Rac1 Nb8? 14.Ne5+/– d4 15.Nb5+– de3 16.de3 a6 17.Rc8 Qc8 18.Nd4 Bd5 19.Qd3 b5 20.Rc1 Qb7+/– 21.f3 Nbd7 22.Nd7 Qd7 23.Nf5+– Bd8 24.Bf6?? Bf6+= 25.e4 Be6 26.Qd7 Bd7 27.Nd6 Rd8 28.f4 Be8 29.Ne8 Re8 30.e5 Be7 31.Rc7 Bb4?? (32.ab4 h6+–; better is 31...Bh4+–). xtrachess – HesterMofet, Live Game Caissa's Web, 2006.

6.Nf3 Nbd7 7.d4 dc4 8.Bc4 a5 9.b5 =.

6.Nf3 Nbd7 7.d4 c5 8.dc5 bc5 9.b5 Ne4 10.Nbd2 Qa5 11.Bd3 dc4 12.Bc4 Nb6 13.Qc2 Nc4 14.Qc4 Rd8 15.Qc2 Nd2 16.Nd2 Bg2 17.Rg1 Bb7 18.a4 a6 19.Bc3 Qc7 20.f4 f6 21.Nc4 Qd7 22.Rd1 Qc7 23.Kf2 Rd1 24.Qd1 ab5 25.ab5 Bd5 26.Ba5 Qa7 27.Qa4 Kf7 28.Ra1 Be7 29.Nb6 f5 30.Nd5 ed5 31.b6 Qb7 32.Qb5 Ra8 33.Bc3 Rb8 34.Ra6 d4 35.ed4 Bh4 36.Kg1 Qf3 37.Qf1 Qc3 38.Ra7 Kf8 39.b7 Qd4 40.Kh1 Qe4 0–1. Koerner – Dasler, corr DDR–H–217 1976.

6.Nf3 Nbd7 7.d4 Be7 8.Nbd2 (8.Bd3 dc4 9.Bc4 Bd5 10.Bd5 Nd5+=) 8...0–0 9.Bd3 Ne4 (9...dc4 10.Nc4 b5 11.Na5+=) 10.Qc2 (10.0–0 Nd2 11.Nd2 dc4 12.Nc4 Bd5+=) 10...Ndf6 (10...f5 11.0–0+=) 11.c5 (11.0–0 a5 12.b5 c5+=) 11...Nd2 12.Nd2 a5 13.c6 Ba6 14.b5+= Bc8 15.0–0 h6 16.Nf3+/– Ne8 17.Ne5 Nd6 18.a4 f5 19.Ng6 Rf6 20.Ne7 Qe7 21.Ba3 Qd8 22.f3 Nf7 23.Bc1 Qe8 24.Bb2 e5 25.de5 Ne5 26.Be2 Rf8? 27.Qc3+– f4? 28.Qe5 Qg6 29.Qd5 Be6 30.Qe4 Bf5 31.Bc4 Kh8 32.Qf4 Bh3 33.Qg3 Qg3 34.hg3 Bf5 35.e4 Bg6 1–0. Frech,Josef – Maringer,Walter, Velden op, 1996.

6.Nf3 Be7

7.Bd3 c5 8.bc5 Bc5 9.cd5 Bd5 10.Bb5 Nbd7 11.Nc3 =.

7.Bd3 h6 8.h4 Nbd7 9.Nc3 c5 10.b5 e5 11.Bf5? d4 12.Nd5 Bd6 13.e4 g6 14.Bd7 Nd7 15.d3 Be7 16.Ne7 Qe7= 17.Ke2 f5–/+ 18.Qc2 fe4 19.de4 Nf6 20.Rae1? Be4–+ 21.Qd2 0–0–0 22.Kd1 Bf3 23.gf3 Rde8 24.Qd3 Qf7 25.Rhg1 Rhg8 26.Bc1 h5 27.Bg5 Nd7 28.Qe4 Kb8–+ 29.Qc6 Qe6 30.Qe6 Re6 31.Re4 Kc7 32.Rge1 Ra8 33.f4 a6 34.fe5 ab5–+ 35.cb5 Ra3 36.Bc1 Rb3 37.f4 Rb5 38.Kc2 Kc6 39.Bd2 Kd5 40.R1e2 c4 41.Re1 Nc5 42.Rd4 Kd4 43.Be3 Kd5 44.Rd1 Nd3 45.Bd2 Rb2 46.Kc3 b5 (47.f5 b4#) 0–1. Van der Linden,Arie – Stefkovic,Martin (2095), Kleve op, 2001.

7.cd5 ed5 8.Bb5 c6 9.Be2 0–0 10.0–0 c5 11.bc5 bc5 12.Nc3 d4 13.Nb5 a6 14.Nbd4 cd4 15.Nd4 Nbd7 16.Bf3 Rb8 17.Rb1 Bd6 18.Nf5 Bf3 19.Qf3 Qc7 20.Rbc1 Qd8 (20...Bh2 21.Kh1 Rb2 22.Rc7 Bc7 23.d4–/+) 21.Rc2 Be5 22.d4 Bc7 23.Rfc1 Ba5 24.d5 Re8 25.Nd6? Rb2!–+ 26.Ne8 Rc2 27.Rc2 Qe8 28.Qf5 g6 29.Qd3 Qe5 30.Rc8 Kg7 31.h3 Qd5 32.Qa6 Qd1 33.Kh2 Be1 34.Qf1 Qd6 35.Kg1 Ba5 36.Qc1 Bb6 37.Rc6 Qd3 38.Qb2 Bc7 39.g4?? Be5 40.Qc1 h5 41.f4 Bb8 42.g5 Nd5 43.Rc8 Ba7 44.Qb2 f6 45.gf6 Kf7 46.Qc2 Qe3 47.Kf1 Qg1 48.Ke2 Qf2 49.Kd3 Nc5 50.Rc5 Qe3 51.Kc4 Qc5 0–1. Brown,Paul (2125) – Humpy,Koneru, Commonwealth–ch, 1999.

7.cd5 Bd5 8.Nc3 0–0 =.

7.Be2 0–0 8.0–0 Nbd7 9.d3 c5 10.b5 dc4 11.dc4 Qc7 12.Nbd2 Rfd8 13.Qc2 Bd6 14.h3 a5 15.a4 Nf8 16.Bf6 gf6 17.Ne4 Be5 18.Ne5 Qe5 19.Ng3 Ng6 20.Rfd1 Nh4 21.Bf1 Qg5 22.Qe2 f5 23.Rd8 Rd8 24.Rd1 Rd1 25.Qd1 f4 (Better is 25...Qe7!?+=) 26.ef4+/– Qf4?? (Better is 26...Qe7+/–) 27.Qd8+– (27...Kg7 28.Nh5 Kh6 29.Nf4 Bf3 30.Qf6 Ng6 31.g4 Bg4 32.hg4 e5 33.g5#) 1–0. Schmidbauer,Josef – Bernloher,Ludwig, Niederbayern–chB, 2000.

5.Nf3 Ba6

6.Ba6 Na6 7.Qe2 Nb8 8.0–0 Be7 9.c4 dc4 10.Qc4 0–0 11.d4 Nbd7 12.Nbd2 Rc8 13.Rac1 c5 14.dc5 Ne5?? (better is 14...bc5 15.b5 Qc7=) 15.Be5+– (15.Ne5?! Qd2 16.Bd4 bc5+–) 15...bc5 16.bc5 (16.Bf6!? Bf6 17.Ne4 cb4 18.Nf6 gf6 19.Qg4 Kh8 20.Qb4 Qb6+–) 16...Rc5 17.Qa6 (17.Qd4 Rd5 18.Qa7 Rd7+–) 17...Rc1 (17...Re5 18.Ne5 Qd2 19.Nc6+–) 18.Rc1 Nd7 (18...Ng4 19.Bd4+–) 19.Bc7 (19.Bd4 e5 20.Ba7 Nf6+–) 19...Qe8 20.Qa7 Bf6 21.Rd1 Qc8 22.a4 Bd8 23.Rc1 Be7 24.a5 Nf6 25.e4 Ba3 26.Rc2 Bb4 27.a6 Qa8 28.Qa8 Ra8 29.Ra2 Ne8 30.Bf4 f6 31.g3 e5 32.Be3 White plans a7 32...Nd6 33.a7 Nb5 34.Rb2 Na7 35.Ba7 Ra7 36.Rb4 Kf7 37.Kg2 Kg6 38.Nc4 Ra2 39.h3 h6 40.Nfd2 Kg5 41.Rb2 Ra4 42.Ne3 g6 43.Nf3 Kh5 44.g4 1–0. Fournier,Frederic (1635) – alfredo1 (1630), Active, 2009.

6.b5 Bb7 7.d4 Be7 8.Nbd2 0–0 9.c4 c6 10.a4 a6 11.cd5 Nd5 12.Qc2 (12.e4 Nb4=) 12...ab5 13.ab5 Ra1 14.Ba1 Nb4 (14...Qc7 15.Qb1=) 15.Qb3 (15.Qc3 cb5 16.Bb5 Qd6=) 15...Qd5 16.Bc4 Qf5 (16...Qh5!? 17.bc6 N8c6+=) 17.e4= Qh5 18.Ne5 cb5 19.Be2 Qg5 (19...Qh6 20.Bc3 N4c6 21.Nc6 Bc6 22.0–0=) 20.Ndf3?? (better is 20.Bc3 N8c6 21.h4+=) 20…Qg6 (20...Qg6 21.Ng6 hg6+–; 20...Qg2?! 21.Rg1 Qh3 22.Bc3=). Real Pons,J (2010) – Saez Aguello,JM (1845), Tres Peons op, 1999.

5.Nf3 Bb7

6.b5 a6 7.Be5 +=.

6.b5 Be7 7.d4 (7.Be2 a6=) 7...0–0 8.Bd3 c5 9.bc6 Nc6 10.Nbd2 Na5 11.c4 (11.Bc3 Nc4=) 11...dc4+= 12.Nc4 Nc4 13.Bc4 Rc8 14.Bd3 Qd5 15.0–0 Ne4 (15...Bd6 16.Qe2+=) 16.Qe2= Qb3 (16...Bd6 17.Rfc1=) 17.Ne5 Nc3 (17...Bd5=) 18.Qh5 (18.Bc3 Rc3 19.Rfb1 Qd5=) 18...Be4 (18...g6!? 19.Bg6 fg6 (19...hg6?! 20.Ng6 Bf6 21.Nf8 Kf8 22.Bc3 Qc3 23.Qb5=) 20.Ng6 Rf7 (20...hg6?! 21.Qg6 Kh8 22.Qh6 Kg8 23.Qg6 Kh8 24.Qh6 Kg8 25.Qg6=) 21.Ne7 Re7 22.Bc3 Rg7–/+) 19.Bc3= Bd3 20.Nd3 Rc3 21.Nf4 (21.Rfb1 Qa4 22.Rd1 Ra3 23.Ra3 Qa3+=) 21...Ba3 22.d5 ed5 (22...Bd6 23.Rfb1 Qc4 24.Ne2–/+) 23.Nd5 (23.Rfb1 Qc2 24.Rd1 Re8+=) 23...Rd3 24.e4 Qc2 (24...Qc4 25.Qf5+=) 25.Qg4 (25.Qg5 Rb8+=) 25...Kh8 (25...f5 26.Qh5 Bc5 27.Ra7=) 26.h4 (26.Nf4 Rb3 27.Nh5 Qc3+=) 26...Rb3 27.Ne3 Qc3 28.h5 h6 29.Nf5 a5 30.Rad1 Qf6 31.f4 Bc5 32.Kh1 Rb4 33.Rfe1 White plans e5 33...Rg8 34.e5–+ Qe6 35.Rd8 g5 36.hg6 Rd8 37.gf7? Qf7 38.e6 Qf6 39.e7 Re8 40.Re6 Qa1 (40...Qa1 41.Kh2 Qg1 42.Kh3 Rb3 43.Re3 Re3 44.Ne3 Qe3 45.g3 b5–+) 0–1. Smolensky – Morozov, corr, 1969.

6.Nc3 a6 7.d4 Nbd7 8.Bd3 Bd6 9.h3 0–0 10.0–0 Qe7 11.e4?? (better is 11.Re1+=) 11...de4–+ 12.Ne4 Be4 13.Be4 Ne4 14.c4 c5 15.Re1 Ndf6 (15...f5!? 16.dc5 bc5 17.Nd2–+) 16.bc5 bc5 17.d5 ed5 18.cd5 Qb7 19.Rb1 Qc7 20.Qc2 Rfe8 21.Re2 Rab8 22.Bf6 (22.Rbe1 Qb7 23.Qa4 Kf8 24.Bf6 Nf6–+) 22...Nf6 (22...Nf6 23.Re8 Re8–+) 0–1. ghorn (2205) – mgilbert (2595), net–chess.com, 2015.

6.Nc3 c5 =.

6.Nc3 Nbd7 7.Ra2 e5=.

6.Nc3 Nbd7 7.b5 Bd6 8.Ra2 (8.Be2 a6=) 8...0–0=+ 9.Be2 e5 (9...a6 10.ba6 Ba6 11.Nb5=+) 10.0–0 (10.d4 e4 11.Nh4 g6=+) 10...c5 (10...a6 11.Re1=+) 11.bc6= Bc6 12.Re1 (12.Nh4 d4 13.ed4 ed4=) 12...Bb7 (12...a6 13.a4=+) 13.Nb5 (13.Ra1 a6=+) 13...Bb8=+ 14.Nc3 Qe7 15.h3 a6 16.Ra1 (16.Nh4 Qe6–/+) 16...Bd6 17.a4 Rac8 18.Rb1 Nc5 (18...Ne4!?–/+) 19.d4= ed4 20.Nd4 (20.Qd4 Rfe8=) 20...Qe5 21.Nf3= Qe7 22.Nd4 Bb8 23.Nf3 Nce4 24.Qd3 Qc7 25.Na2 (White gets strong initiative) 25...Ng5 26.Bf6+/– Nf3 27.Bf3 Qh2? 28.Kf1+– gf6 29.Rb6 Bc6 30.Nb4 Ba4 31.Ra6 Bd7 32.Rf6 Rc5 33.Bd5 Kg7 34.Rf7 Rf7 35.Bf7 Kf7 36.Qd7 Kg8 (36...Kf8 37.Qd8 Kf7 38.Rd1+–) 1–0. marekt (2375) – poobeshtamil (2115), ICC, 2003.

6.Nc3 Nbd7 7.Be2 a6 8.0–0 Bd6 9.Re1 0–0 10.d4 c5 11.dc5 bc5 12.b5 a5 (12...Ne5 13.Rb1=+) 13.Rb1= Nb6 14.Qd3 (14.Na2 c4=+) 14...Qc7 15.Red1 (15.Qd2 Rfd8=+) 15...h6 (15...e5!? 16.Qd2 e4–/+) 16.Qd2=+ Rfe8 17.h3 e5 18.Nh4 d4 19.Nf5 Bf8 (19...dc3?! 20.Qd6 Qd6 21.Rd6+=) 20.Na2 Qd7 21.Nh4 Ne4 22.Qe1 Qe7 (22...Qe6 23.Ra1–/+) 23.Nf3 Qf6 (23...Qe6 24.Nc1–/+) 24.c3 (24.c4 Nd6 25.Qf1 Be4–/+) 24...Ng5–/+ 25.Ng5 Qg5 26.Bf1 Rad8 (26...Bf3!–/+) 27.ed4=+ ed4 28.Qd2 Qg6 29.cd4 Nc4 30.Qd3 (30.Bc4 Qg2) 30...Qd3 (30...Be4!? 31.Qc4 Bb1–/+) 31.Bd3=+ (< 31.Rd3 Be4–+) 31...Nb2 32.Rb2 Rd4 33.Nc3 Red8 34.Rbd2 (34.Be2 Be7=) 34...g6 (34...Be7 35.Re2 Rd3 36.Rd3 Rd3 37.Re7 Rc3 38.Rb7 Ra3 39.Rc7=+) 35.Nb1 Kg7 36.Kf1 (36.Bc4 Be4 37.Rd4 Rd4 38.Rd4 cd4–/+) 36...Be7 37.Be2 Rd2 (37...f5 38.Rd4 cd4 39.a4=+) 38.Nd2= Bf6 (better is 38...Bd5!?=) 39.Nb3+/– Rd1 40.Bd1 Bb2 (40...Bd5!? 41.Na5 Bc3+/–) 41.Nc5+– Bd5 42.b6 Ba3 43.b7 Bb7 44.Nb7 f5? (better is 44...Bb4+–) 45.Na5 Kf6 46.Bf3 g5 47.Nc6 Bc5 48.Bd5 h5 49.Ke2 g4 50.hg4 hg4 51.f4 gf3 52.gf3 f4 53.Kd3 Bb6 (53...Kf5 54.Bg8+–) 54.Ke4 Kg5 55.Ne5 Be3 56.Nf7 Kf6 57.Nd8 Ke7 (58.Ne6 Bd2+–) 0–1. lucya (2085) – Kid_Azteca (1800), GameColony.com, 2002.

6.Nc3 Nbd7 7.Be2 c5 =.

6.c4 dc4 7.Bc4 Be7 8.d4 0–0 9.0–0 c5 10.dc5 bc5 11.bc5 Nbd7 12.Nbd2 Nc5 13.Rb1 Rb8 14.Qc2 Qd7 15.Rfd1 Rfc8 16.Be5 Bd6 17.Qc3 (17.Bb5 Qe7=) 17...Na4 (17...Bf3 18.Nf3 Nce4 19.Qd3 Rb1 20.Rb1 Ba3 21.Qa3 Rc4 22.Bf6 gf6 23.Nd4+=) 18.Qa1= Be5 19.Ne5 Qe7 20.Qd4 ˝–˝. Fournier,Frederic (2160) – Cereus (2140), echecsemail.com Thematique, 2006.

6.c4 dc4 7.Bc4 Be7 8.d4 0–0 9.Nbd2 Ne4 (9...Nbd7 10.0–0=) 10.Bd3 Nd2 11.Qd2 Nd7 12.Qe2 c5 13.bc5 bc5 14.0–0 cd4 15.Nd4 Bf6 (15...Nc5 16.Bc2=) 16.Rab1 Nc5 (16...Ne5 17.Bc2 Qe7 18.f4+=) 17.Bc2 (17.Bh7 Kh7 18.Qh5 Kg8 19.Qc5 Qb6 20.Qb6 ab6+/–) 17...Ba6 (better is 17...e5 18.Nb5 Qb6=) 18.Qh5+/– Do you see the mate threat? 18...g6?? (better is 18...Nd3 19.Nc6 Qd6 20.Bf6 gf6+–) 19.Qc5+– Rc8 20.Nc6 Bb2 21.Rb2 (21.Nd8 Rc5 22.Rb2 Bf1 23.Ne6 fe6 24.Kf1 Rc3–/+) 21...Bf1 (21...Qc7 22.Ne7 Kg7 23.Qd4 e5 24.Qa4 Bf1 25.Nc8 Bg2 26.Kg2 (26.Qa7?! Qc8 27.Qa5 Bh3 28.Qe5 Kg8=) 26...Rc8 27.Be4+–) 22.Ne7 (22.Kf1?! Qc7 23.Ba4 Rfd8+–) 22...Kg7 23.Nc8 Qd2 (23...Bg2 24.Qe5 (24.Qa7?! Bf3 25.Ne7 Re8=) 24...Kg8 25.Na7+–) 24.Qd4 (better is 24.Qe5 Kh6 25.Bg6+– (25.Kf1?! Rc8 26.Qd4 Qc1 27.Bd1 Rc4+–)) 24...Qd4 25.ed4 Ba6 (25...Rc8 26.Kf1 Rc4+–) 26.Na7 Ra8 27.Nc6 (27.Nc6 Bc4 28.a4+–) 1–0. Puls,Georg – Balzer, ThG'04, 1971.

6.c4 c6 7.Nc3 Nbd7 8.d4 dc4 9.Bc4 Be7 10.0–0 0–0 11.Qe2 Nd5 12.Rfd1 (12.e4 Nc7+=) 12...N7f6 (12...a5 13.ba5 Ra5 14.Nd5 ed5 15.Bd3=) 13.Ba6 White plans b5 (13.e4 Nc7+=) 13...Ba6= 14.Qa6 Qc8 15.Qe2 Qb7 16.Ne5 a5 17.b5 Nc3 18.Bc3 c5 (18...cb5!? 19.Qb5 Rfc8=) 19.Nc6+/– Nd5 20.Bb2 cd4 21.Bd4 Bf6 22.Rac1 Bd4 23.Rd4 Rac8 24.Qb2 h6 25.Rg4 f5 26.Rgc4 Kh7 1–0. Krivoshapko,Alexander – Ledovskih,Viktor, 2011.

6.c4 c6 7.d4 Be7 8.c5 (8.cd5 ed5 9.Bd3 0–0=) 8...b5 (8...a5!?=) 9.a4 ba4 10.Ra4 (10.Nc3 a5 11.b5 0–0+=) 10...Ne4 (10...a5 11.Bd3+=) 11.b5 (11.Bd3!?+/–) 11...0–0 (11...Bh4 12.Nh4 Qh4 13.Qc2=) 12.Be2 (12.Nc3=) 12...a6 (12...cb5!? 13.Bb5 Bc6=) 13.b6+= Nd7 14.Nc3 (14.0–0+=) 14...Ndf6 (14...Ndc5!? 15.dc5 Nc5+=) 15.Ne4 (15.0–0 Nc5 16.dc5 Bc5+/–) 15...Ne4 16.Nd2 Nd2 (16...f5 17.Ra5+/–) 17.Qd2 (< 17.Kd2 f5+=) 17...Bf6 (17...Qd7 18.0–0+/–) 18.f4 (18.0–0 Qe7+–) 18...Bh4+/– 19.g3 Bf6 (19...Be7 20.0–0+/–) 20.0–0 g6 21.Rfa1 Qc8 22.R1a3 Qd8 23.Qc1 h5 24.Ba6+– Ba6 25.Ra6 Ra6 26.Ra6 Kh7 27.Bc3 Qb8 28.Qb2 Rc8 29.Ba5 Re8 30.Qb4 Re7 31.Qa4 Qc8 32.Bb4 h4 33.Ra7 hg3 34.hg3 Qb8 35.Re7 (35...Be7 36.Qa7+–) 1–0. clochard (2215) – youngboy (1900), net–chess.com, 2005.

6.c4 c6 7.Be2 Nbd7 8.0–0 Rc8 9.d4 Ba6 10.Nbd2 Bb7 11.Re1 Bd6 12.Bd3 Bb8 (12...0–0 13.e4 de4 14.Ne4 Ne4 15.Be4+=) 13.Qb1 (13.e4 de4 14.Ne4 0–0+/–) 13...0–0+= 14.Ne5 (14.Qc2 h6+=) 14...h6 15.Ndf3 Ne5 (15...c5 16.Nd7 Qd7 17.dc5 dc4 18.Bc4 bc5 19.b5=) 16.Ne5 (16.de5 Nd7+=) 16...Nd7 (16...c5 17.dc5 bc5 18.f3=) 17.f4 f6? (better is 17...Ne5 18.de5 dc4 19.Bc4 c5 20.bc5 Rc5+=) 18.Rf1?? (better is 18.Bh7 Kh8 19.Ng6 Kh7 20.Nf8 Kg8 21.Ne6+–) 18...Ne5?? (better is 18...fe5 19.de5 Ba6–+) 19.fe5 1–0. Dudko,Gennady – Ledovskih,Viktor, Final Omsk, 2010. (=1.Nf3 b6 2.b4 e6 3.Bb2 Nf6 4.a3 Bb7 5.e3 d5 6.c4 c6)

6.c4 g6 7.d4 Bg7 8.Nbd2 (8.Nc3 0–0 (8...Nbd7 9.Bd3 0–0 10.0–0 dc4 11.Bc4 a5 12.b5 Ne8 13.Qe2 Nd6; 8...Nc6 9.Bd3 0–0 10.0–0 a5 11.cd5 Nd5 12.Nd5 Qd5 13.b5 Ne7) 9.Bd3 dc4 10.Bc4 Nbd7 11.0–0 a5 12.b5 Ne4 13.Qc2 Nd6; 8.Bd3 Nbd7 (8...0–0 9.Nc3 dc4 10.Bc4 Nbd7 11.0–0 Ne4 12.Ne4 Be4 13.Bd3 Nf6; 8...dc4 9.Bc4 0–0 10.Nc3 a5 11.0–0 Nbd7 12.b5 Ne4 13.Ne4 Be4) 9.Nc3 dc4 10.Bc4 0–0 11.0–0 a5 12.Qe2 Qe7 13.b5 Ne4) 8...0–0 (8...Nbd7 9.cd5 ed5 10.Be2 0–0 11.0–0 Qe7 12.h3 Ne4 13.Qc2 Nd6) 9.c5 (9.Bd3 Nbd7 10.0–0 Qe7 11.h3 Ne4 12.cd5 ed5 13.Qc2 Rfc8) 9...c6 (9...a5 10.Bd3 ab4 11.ab4 Ra1 12.Ba1 Nc6 13.Qb3 Qe7) 10.Be2 b5 (10...Nbd7 11.0–0 Qc7 12.Qc2 a5 13.cb6 Qb6) 11.Nb3 (11.a4 a6 12.0–0 Nbd7 13.Bd3 Qc7) 11...Ne4 12.0–0 (12.Nfd2 Nd7 13.0–0 Ba6) 12...a6 (12...Nd7 13.Nfd2 Ba6) 13.Qc2 (13.Na5 Qc7) 13...Nd7 14.Bd3 f5 15.a4 Qc7 16.Nfd2 Ndf6 17.f3 Nd2 18.Nd2 Bh6 19.Rfe1 Rfe8 20.Nf1 Qd7 21.a5 Bg7 22.Rad1 Re7 23.Ng3 Rae8 24.Kf2 Kf7 25.h4 h5 26.Ne2 Bh6 27.Ng1 Qc7 28.Nh3 Bc8 29.Ng5 Kg7 30.g3 Nh7 31.Nh3 Nf6 32.Kg2 Kf7 33.Re2 Rh8 34.Rh1 Ree8 35.e4 Re7 36.Ng5 Bg5 37.hg5 Nh7 38.Bc1 Rhe8 39.Bf4 Qd8 40.Bd6 Rd7 41.ef5 ef5 42.f4 Re2 43.Qe2 Qe8 44.Qf2 Rb7 45.Re1 Qd8 46.Re5 Be6 47.Qc2 Qc8 48.Qb1 Kg7 49.Qh1 Nf8 50.Qe1 Rf7?? 51.Bf8+– Kf8 52.Re6 Rg7 53.Rf6 Kg8 54.Qe6 Qe6 55.Re6 Kf7 56.Rc6 Ke8 57.Ra6 Re7 58.Kf2 Kf7 59.Rd6 Rb7 1–0. Bartle,Georg (1790) – Ott,Lothar (1745), Halle GER, 2011.

6.d3 c5 7.b5 Bd6 8.Be2 0–0 9.0–0 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Qc7 13.Bf6 gf6 14.Nbd2 Nd7 15.c4 Ne5 16.Ne5 Be5 (16...fe5 17.Bf3=) 17.Nf3 Bd6 18.g3 Rd8 19.Nd2 e5 20.cd5 Bd5 21.Nc4 e4 (21...Be7 22.Qc2=) 22.Nd6 Qd6 23.de4 Be4 24.Qa1 Qe5 25.Qe5 (25.Qc1!?+=) 25...fe5+= 26.Ra1 Rd2 27.Kf1 Rb2 28.Ra6?? (better is 28.f3 Rb1 29.Rb1 Bb1 30.Bc4=) 28...Rb1–+ 29.Bd1 Rd1 (29...Bf3 30.Ra8 Kg7 31.Rd8–+) 30.Ke2 Rc1 (better is 30...Rd6!? 31.Ra3–+) 31.Rb6 c4 32.Rb8 Kg7 33.b6 c3 (33...Bd3!? 34.Kf3 e4 35.Kg4–+) 34.Rc8 c2 35.Rc7 (35.b7 Bb7 36.Kd2 Bc8 37.Kc1–+) 35...Rb1 36.b7 (36.f3 Bg6 37.f4 c1Q 38.Rc1 Rc1–+) 36…Rb7 (36...Rb7 37.Rc5 Rb1–+) 0–1. Hal1958 – Matu, playchess.de, 2005.

6.d3 Nbd7 7.Be2 c5 8.bc5 bc5 9.0–0 Bd6 10.Nbd2 0–0 11.c4 Qc7 12.cd5 Bd5 13.Nc4 (13.e4!? Bc6 14.Nc4+=) 13...Bc4 14.dc4 e5 15.Qc2 (15.Nd2!?=) 15...e4–/+ 16.Nd2 Bh2 17.Kh1 Be5 18.Be5 Qe5 (18...Ne5?! 19.Ne4 Qc6 20.Ng5=) 19.g3 Qg5 (19...Rab8 20.Rab1–+) 20.Kg2? (20.Ne4 Ne4 21.Qe4 Rab8=) 20...Ne5 (better is 20...Qg6–/+) 21.Ne4= Ne4 22.Qe4 Ng6 23.Qf3?? (better is 23.Rh1 Rfe8 24.Qd5+=) 23...f5 (better is 23...Nh4 24.Kg1 Nf3 25.Bf3 Rab8–+) 24.Qh5 (24.Qd5 Kh8 25.Qc5 Nh4 26.Kg1 Ng6+/–) 24...Qf6 25.Rh1 h6 26.Bf3 Ne5 27.Rad1 Rad8 28.Rd8 Rd8 29.Qh4 Qf7?? 30.Bd5 Rd5–/+ 31.cd5 Qd5 32.Kh2?? Nf3 33.Kh3 Nh4 34.Kh4 Qh1 0–1. Fournier,Frederic (1970) – thedevilangel (2230), Echecs21, 2003.

6.Bd3 h6 7.Nc3 c5 8.bc5 bc5 9.0–0 Bd6 10.Re1 0–0 11.Be2 Nc6 12.d3 Ne5 13.d4 cd4 14.Qd4 Nf3 15.Bf3 Qc7 16.g3 Be5 17.Qd3 Rab8?? (better is 17...Qa5 18.Rab1 Ba6–/+) 18.Qd2?? (better is 18.Nb5 Ba6 19.Nc7 Bd3 20.Be5 Bc2 21.Rec1+–) 18...Bc3?? (better is 18...Ba8 19.Nd5 Bd5 20.Be5 Qe5 21.Bd5 Nd5–+) 19.Bc3 Rfc8 (19...e5!?+=) 20.Bf6= gf6 21.c3 (better is 21.Qd4!? Qc2 22.Qa7+=) 21...Qc3–/+ 22.Qc3 Rc3 23.Kg2 Kg7 24.h4 f5 25.Kh3 Kg6 26.h5 Kg5 27.Red1 Ba6 28.Bg2 Be2 29.Re1 Bh5 30.a4 Rb2 31.a5 Rcc2 32.Rf1 Be2 33.Rfd1 Bg4 34.Kh2 Bd1 35.Rd1 Rf2 36.Kh3 Rg2 37.e4 Rh2# 0–1. pieeater – Uplander, ChessWorld.net, 2012.

6.d4 a6 7.c4 Nbd7 8.Nc3 Be7 9.c5 bc5 10.bc5 c6 11.Bd3 0–0 12.0–0 h6 13.Qc2 Re8 14.Rab1 Rb8 15.a4 e5 16.a5?? (better is 16.de5 Ng4 17.Ne2+/–) 16...e4–+ (16...Qa5?! 17.de5 Ng4 18.Nd5 Bc5 19.Ra1+=) 17.Be4 de4 18.Nd2 Bf8 19.Na4 g6 20.Nb6 Bg7 21.Qc3 Nb6 22.ab6 Qd5 23.Nc4 Qg5 24.Nd6 Red8 25.d5? (25.Qc2 a5 26.Ne4 Ne4 27.Qe4 Ba6–/+) 25...Nh5 (better is 25...Ne8!? 26.Qb4 Nd6 27.Bg7 Kg7 28.dc6 Bc6 29.cd6 Bb5–+) 26.Qb3 Bb2 (< 26...Qd5 27.Qd5 cd5 28.Nb7=) 27.Rb2 cd5 (27...Qd5?! 28.Qd5 cd5 29.Nb7=) 28.Rd1 (28.Nb7 Rdc8 (< 28...Rb7 29.c6+/–) 29.Nd6 Rc5–/+) 28...Nf6 (28...Rd6 29.cd6 Ng7 30.d7–+) 29.Rc2? (29.Nb7 Rdc8 (< 29...Rb7 30.c6+/–) 30.Nd6 Rc5–/+) 29...Ne8 (better is 29...Bc6–+) 30.Nb7 Rb7 31.c6 Re7 (better is 31...Rbb8=+) 32.c7+/– Nc7 33.bc7 Rc8 34.Qb8 (34.Qb7 Ree8+/–) 34...Ree8 (34...Rec7! 35.Qc8 Rc8 36.Rc8 Kg7=+) 35.Rb1 Rb8?? (better is 35...Qf5 36.Qb6 Re7=) 36.Rb8+– Rb8 37.cb8Q Kg7 38.Qb2 Kh7 (38...Qf6+–) 39.Rc8 1–0. slavisa99 – Simson9, Live Game Caissa's Web, 2004.

6.d4 c5 7.Bb5 Bc6 8.Bc6 Nc6 9.b5 =.

6.d4 c5 7.dc5 bc5 8.bc5 Bc5 9.Nbd2 Nc6 10.Bd3 0–0 11.0–0 Re8 12.Rb1 Bb6 13.Ne5 Qe7 14.Ng4 e5 15.Qf3 Ng4 16.Qg4 Bc8 17.Qh5 g6 18.Qh6 Qf8 19.Qf8 Kf8 20.Bb5 Bd7 (20...Bb7 21.c4 Rad8 22.c5=) 21.c4 d4 (21...dc4 22.Nc4 f6 23.Rfd1+–) 22.Ne4 (22.ed4 Bd4 23.Bd4 ed4+/–) 22...Kg7? (better is 22...Nb8!? 23.a4 a6 24.Bd7 Nd7 25.Ba3 Kg7+=) 23.c5+/– Bc7 24.ed4 ed4 25.Bc6 (25.Nd6!? Re6 26.Bc6 Bc6 27.Bd4 Kg8 28.Nb5+/–) 25...Bc6+/– 26.Bd4 Be5 27.Be5 Re5 28.f3 f5 29.Ng5 Rae8 30.f4 Rc5 31.Rbc1 Rc1 32.Rc1 Rc8 33.Ne6 Kf6 34.Nd4 Bd7 35.Rc8 Bc8 36.Nb5 a6 37.Nd4 Bd7 38.Kf2 g5 39.Ke3 g4 40.g3 Ke7 41.Kd3 Kd6 42.Kc4 h6 43.Nc2 a5 44.Nd4 h5 45.Nc2 Ba4 46.Ne3 Bd7 47.Kd4 a4 48.Nc4 Ke6 49.Kc5 Be8 50.Nb6 Bd7?? (better is 50...h4+/–) 51.Nd7+– Kd7 (51...Kf7+–) 52.Kd5 Kc7 53.Ke6 Kc6 54.Kf5 1–0. Estevez,Eric (1980) – Scharff,Georges (1650), Provence–ch access Vitrolles, 2000.

6.d4 Be7 7.c4 dc4 8.Bc4 c5 9.dc5 bc5 (9...Qd1 10.Kd1 bc5 11.bc5=) 10.Qd8+= Kd8 11.bc5 Bc5 12.Nc3 Nc6 13.0–0 Ke7 14.Rad1 Rhd8 15.Rd8 Rd8 16.Rd1 Rd1 17.Nd1 Na5 18.Ba2 Ba6 19.Nd4 Nc4 Attacks the isolani on a3 20.Bc4 Bc4 21.Nc3 Nd5 (21...Kd7 22.Nf3 Bd6 23.Nb1+=) 22.Nd5 (better is 22.Ne4!? Bb6 23.Ng5+=) 22...Bd5+= 23.f3 (23.Nb5 a6 24.Bd4 Bd4 25.Nd4 f5+=) 23...f6 24.Kf2 a6 25.Nb3?? (25.Kg3 Kd7+=) 25...Ba7 (better is 25...Bb3 26.Ke2 Bc4 27.Kd2 h5–+) 26.Nc1 Kd6 27.Nd3 Bc4 28.Nb4 a5 29.Nc2 a4 30.Nb4 Kc5?? (better is 30...e5–/+) 31.Bd4+– Kb5 32.Ba7 g6 33.Bd4 e5 34.Bc3 Kb6 35.Ke1 Kb5 36.Kd2 Bf1 37.g3 Kc4 38.Kc2 Bg2 39.f4 Be4 40.Kb2 ef4 41.ef4 f5 42.h4 Bb7 43.Be5 Be4 44.Bc3 Bb7 45.Be5 Be4 46.Bc3 ˝–˝. Fournier,Frederic – Guest864426, Partie amicale, 3m + 0s, 2008.

6.d4 Be7 7.Nbd2 0–0 8.Bd3 c5 9.bc5 bc5 10.c4 cd4 11.ed4 (worse is 11.Nd4 dc4 12.Bc4 Bg2+=) 11...dc4 12.Nc4 Nc6 13.0–0 Qd5 14.Ne3 Qh5 15.Ne5 Qd1 16.Rfd1 Rab8 17.Rab1 Rfd8 18.Bc3 Kf8 (better is 18...Ba8 19.Nc6 Bc6=) 19.Rb7!+/– Rb7 20.Nc6 Rc8 21.Na5 (21.Ne7?! Rc3 22.Nc8 Rc8+=) 21...Rbb8 22.Be1 ˝–˝. Sullivan,Neil (2065) – Sicotte,Marc (1960), Quebec–ch qual1, 2006. (=1.Nf3 Nf6 2.b4 e6 3.a3 b6 4.d4 d5 5.Bb2 Bb7 6.e3 Be7)

6.d4 Be7 7.Bd3 0–0 8.Ne5 Nbd7 9.Nd7 Qd7 10.0–0 a5 11.b5 c6 12.a4 Ne8 13.Nd2 Nd6 14.bc6 Qc6 15.c3 (15.Qh5 g6 16.Qe2 Nc4=) 15...Nc4 16.Qc2 Nd2 (16...f5 17.Be2=) 17.Qd2= f6 (17...Ba6 18.Ba3 Bd3 19.Qd3=) 18.Qc2 f5 19.Bb5 Qc7 20.f4 (20.Ba3 Ba6=) 20...g5 (20...Rfc8 21.Qd3=) 21.Qe2 Bf6 (21...Bc6 22.c4=) 22.Qh5 (22.c4 dc4 23.Bc4 Qd7+/–) 22...Qg7 23.fg5 Bg5 24.Rf3 f4 (better is 24...Rf6!? 25.Rg3 Rg6=) 25.Raf1+/– Qh6 (25...Bh6 26.ef4 Rf6 27.Rg3+–) 26.Qg4+– fe3 27.Re3 Rf1+/– 28.Bf1 Kf7 29.Rf3 Ke7?? 30.Ba3 Kd7 31.Bb5 Bc6 32.Rf7 Ke8 33.Rf8 Qf8 34.Bc6 Kf7 35.Bf8 Be3 36.Kh1 Rf8 37.Bb5 Ke7 38.Qh4 Kd6 39.Qh7 Rd8 40.Qb7 (40...Bf4 41.g3+–) 1–0. Antusch,Ingrid – Maurer,Sandra, Bayern–chB (Women), 1988.

6.d4 g6 7.Bd3+= Bg7 8.Nbd2 0–0 9.0–0 Nbd7 10.c4 dc4 11.Nc4 c5 12.bc5 bc5 13.dc5 (13.Qe2 Rb8+=) 13...Nc5= 14.Be2 Nce4 (14...Bd5 15.Rc1=) 15.Qd8 Rfd8 16.Rfd1 (16.Rac1 Nd5=) 16...Bd5 (16...Ng4 17.Bg7 Kg7=) 17.Nce5 (17.Nfe5 Nd7=) 17...Rab8 (better is 17...Ng4!–/+) 18.Bd4= a5 19.Rab1 Rb1 20.Rb1 h5 21.h3 Nd7 22.Nd7 Rd7 23.Bg7 (23.Rb8 Kh7=) 23...Kg7+= 24.Ne5 Re7 (better is 24...Rc7 25.Bd3 Rc3 26.Be4 Be4+=) 25.Bc4?? (25.Bd3 Rc7=) 25...Nc3?? (better is 25...Nd2 26.Bd5 Nb1–+ (26...ed5?! 27.Rb2+=)) 26.Rb2 Na4 27.Rc2 Rc7= 28.Bd3 Rc2 29.Bc2 Nc5 30.Nd3 Nd3 31.Bd3 a4 32.Bb5 Bb3 33.f3 Kf6 34.e4 Ke5 35.Kf2 f5 36.Ke3 f4 37.Kd3+/– h4? 38.Kc3 g5 39.Kb4?? Kd4+= 40.Ba4 Ba4 41.Ka4 Kc5?? 42.Kb3 e5 43.a4 Kb6 44.Kc4 Ka5 45.Kd5 Ka4 46.Ke5 Kb4 47.Kf5 Kc4 48.e5 Kd5 49.e6 Kd6 50.Kg5 Ke6 51.Kf4 Kf6 52.Kg4 Kg6 53.Kh4 Kh6 54.g4 Kg6 55.f4 Kh6 56.f5 Kg7 57.Kg5 Kf7 58.f6 Kg8 59.Kg6 Kh8 60.g5 Kg8+– 61.h4 Kh8 62.h5 Kg8+– 63.h6 Kh8 64.Kf5 Kg8 65.Ke6 Kf8 66.g6 Kg8 67.h7 Kh8 68.g7 Kh7 69.Kf7 Kh6 70.g8Q Kh5 71.Ke6 Kh4 72.Kf5 Kh3 73.Kf4 Kh2 74.Kf3 Kh1 75.Qg2 1–0. Fournier,Frederic – daso(C) (1610), Active, 2008.

6.Be2 Ba6?? 7.Ba6 Na6 8.Qe2 Nb8 9.Nd4 Be7 10.Qb5 Nbd7 11.Nc6 Qc8 12.Ne7 Ke7 13.Bf6 Nf6 14.Nc3 Rd8 15.0–0 Kf8 16.Qd3 c5 17.bc5 bc5 18.Qe2 d4 19.ed4 cd4 20.Ne4 Ne4 21.Qe4 Rb8 22.Qh7 Ke7 23.Qg7 Qc6 24.Qg5 f6 25.Qg7 Kd6 26.Qf6 Rg8 27.Qd4 Ke7 28.g3 Rbd8 29.Qa7 Rd7 30.Qe3 Qc2 31.Rac1 Qh7 32.Qc5 Kf6 33.Rfe1 Rh8 34.h4 Rd2 35.Qc3 e5 36.Qd2 Qa7 37.Qg5 Kf7 38.Qe5 Rf8 39.Rc7 1–0. BorisOwl – NN, GameColony.com, 2001.

6.Be2 c5 =.

6.Be2 Be7 7.c4 c6 8.Nc3 (8.cd5 Nd5 9.Nc3 0–0=) 8...Nbd7 (8...dc4 9.Bc4 a5 10.b5=) 9.0–0 (9.cd5 cd5 10.0–0 a5=) 9...0–0 (9...dc4 10.Bc4 0–0 11.d4=) 10.h3 (10.cd5 cd5 11.Rc1 a5=) 10...Ne8 (10...dc4 11.Bc4 c5 12.bc5 Bf3 13.Qf3=) 11.cd5= cd5 12.Rc1 (12.Qb3 Nd6=) 12...Bf6 (12...a5 13.Qb3=) 13.Qb3 (13.d4 Nd6+=) 13...Rc8= 14.Nb5 Rc1 (14...Bb2 15.Qb2 Rc1 16.Rc1+=) 15.Rc1 a6 (15...Bb2 16.Qb2 a6 17.Nbd4=) 16.Bf6+= gf6 (16...Ndf6 17.Nc3+=) 17.Nbd4 (17.Nc3 Nd6+/–) 17...Ng7 (17...Nd6 18.Nc6 Qa8 19.Ne7 Kg7 20.Qc2+=) 18.Qc2 (18.Nc6 Qe8+/–) 18...Ne5 (18...Qb8 19.Qb1+/–) 19.Qa4 (19.Qb2 Qe7+/–) 19...b5 (19...Qd6 20.Rc3+/–) 20.Qb3 (20.Qd1 Qe7+/–) 20...Kh8 (20...Qd7 21.d3+=) 21.a4+/– Qd7 (21...ba4 22.Qa4 Qd6 23.Nb3+/–) 22.ab5 ab5 23.Ne5 fe5 24.Bb5 (24.Nb5 Bc6 25.Na3 Bb7+/–) 24...Qd6 25.Nf3 f6 26.Be2 Rc8 27.Rc8+– Bc8 28.b5 Qb6 29.Qb4 Qd8 30.b6 Bb7 31.d4 e4 32.Nh4 Kg8 33.Qc5 Ne8 34.Kf1 Nd6+/– 35.Bh5 Nc8 36.Qc7 Qe7? 37.f3 Kf8 38.fe4+– de4 39.Qc5 Kg7 40.Kf2 f5 41.g3 Qd8 42.Qe5 Qf6 43.Qc7 Kh6?? 44.Qb7 Nb6 45.Qb6 Kh5 46.d5 (46...Kg5 47.de6+–) 1–0. pier_e – ss_26, internet, 2009.

6.Be2 Be7 7.d4 0–0 8.0–0 Nbd7 9.Nbd2 Rc8 10.Rc1 c5 11.dc5 bc5 12.bc5 Nc5 13.c4 Nce4 14.cd5 Bd5 (14...Nd5? 15.Rc8 Qc8 16.Ne4 Ne3 17.fe3 Be4 18.Qd4+–) 15.Ne4 Ne4 16.Nd2 (16.Qa4 Qb6 17.Rb1 Qd6=) 16...Qa5 Attacks the isolani on a3 (16...Rb8 17.Rb1+=) 17.Ne4 Be4 18.Rc8 Rc8 19.Qd7 Rc7?? (better is 19...Qc7 20.Rd1 Bd5 21.Qc7 Rc7=) 20.Qd4+– Bf6 21.Qe4 (21.Qe4 Rd7 22.Bf6 gf6 23.Rc1+–) 1–0. Fournier,Frederic (1805) – Castlllo (1630), Partie evaluee, 2008.

6.Be2 Be7 7.d4 Ne4 8.Nbd2 (8.0–0 0–0=) 8...Nd7 (8...0–0 9.0–0=) 9.Ne4 (9.0–0 0–0=) 9...de4 10.Nd2 0–0 11.c4 f5 (11...c5 12.dc5 bc5 13.b5=) 12.Qb3 c5 (12...Nf6 13.0–0+=) 13.bc5 Rb8 (13...bc5 14.Qb7 Rb8 15.Qa7 Rb2 16.Rb1 Rb1 17.Nb1 cd4 18.ed4+=) 14.cb6+/– Nb6 (The passed pawn on c4 quickly leads to threats) 15.Rb1 Kh8 (15...Ba6 16.Qc2+/–) 16.0–0 f4 (16...Bc6 17.Qa2+/–) 17.ef4+– Rf4 18.d5 (better is 18.c5!? Nd5 19.Bc1+–) 18...ed5+= 19.c5 Bc5 (19...Nd7 20.Qg3 Bg5 21.Bb5+/–) 20.Bg7+/– (Demolition of pawn structure) 20...Kg7 21.Qg3 Kh8 22.Qf4 Bd6 23.Qf7 Bc6? 24.Qh5 Rb7 25.Rb3 Rg7 26.Bb5 Bb5+= 27.Rb5 Qg8 28.g3 Rg5 29.Qh6 Be5 30.Ne4 de4+= 31.Re5 Re5= 32.Qf6 Qg7 33.Qd8 Qg8 34.Qf6 (34...Qg7 35.Qd8 Qg8 36.Qf6=). Gross,Wilhelm – Merten,Rainer, xiii/19, 1988.

6.Be2 g6 7.0–0+= Bg7 8.d4 0–0 9.Nbd2 Nbd7 10.c4 dc4 11.Nc4 Nd5 (11...Bd5 12.Rc1+=) 12.Rc1 Rc8 13.h3 N7f6 14.Nce5 a6 15.Bd3 h6 16.Re1 Kh7 (16...Nd7 17.Qe2+=) 17.Qe2 Nd7 (17...b5 18.Qd2+=) 18.Nd7 Qd7 19.Rc2 (19.Ba6 Ba6 20.Qa6 c5+/–) 19...c6 (19...b5 20.Ne5 Qd8 21.Nc6+=) 20.Rec1 Rc7 21.Ba6 Ba6 22.Qa6 b5 (better is 22...Rd8!?+/–) 23.Rc6+– Rc6 24.Qc6 Qc6 25.Rc6 Rb8 26.Ne5 Be5 27.de5 Kg7 28.Bd4 (28.Kf1 g5+–) 28...Ne7 (28...Ra8 29.Rc5+–) 29.Rc7 Nd5 30.Ra7 Nb6 31.Bb6 Rb6 32.Rc7 h5 33.Rc5 h4 34.f4 Kh6 35.Kf2 Kh5 36.Kf3 g5 37.g3 hg3 38.Kg3 gf4 39.ef4 Rb7 40.h4 Rb6? 41.Rc7 Kg6? 42.Rc5 Kh5 43.Rc7 Kg6 44.Kg4 f6 45.ef6 Kf6 46.h5 e5 47.fe5 Ke5 48.Rc5 Kd4 49.Kg5 Rb8 50.h6 Rg8 51.Kh5 Rb8 52.h7 Rh8 53.Kg6 Ke4 54.Kg7 Rb8 55.h8Q Rb7 56.Kf6 Rb6 57.Kg5 Kf3 (57...Rd6 58.Qe5 Kf3 59.Rc3 Kf2 60.Rc2 Rd2 61.Rd2 Kf3 62.Qf4) 1–0. Fournier,Frederic (1695) – guest20517 (1755), 1 min +2s chess17.com, 2008.

6.Be2 g6 7.Nc3 Bg7 8.0–0 Nbd7 9.d4 0–0 10.Rb1 Re8 11.Qd3 Qc8 12.Rfd1 c6 13.e4 Ba6 14.Qa6 Qa6 15.Ba6 b5 16.Bb7 1–0. kolya (2015) – Valiantangel (1785), GameColony.com, 2002.

6.Be2 g6 7.d4 Bg7 8.Nbd2 0–0 9.0–0 Qd6 10.c4 dc4 11.Nc4 Qd7 12.Nce5 Qd6 13.Rc1 c6 14.Qc2 Rc8 15.Bd3 Nbd7 16.Nd7 (16.Ng5 Rf8+/–) 16...Qd7 17.Ne5 Qd6 18.Qe2 Nd7 19.Nd7 Qd7 20.Rc2 f6 21.Ba6 Ba6 22.Qa6 Rc7 23.Rfc1 e5 24.de5 fe5 25.Qe2 (25.Qc4 Kh8+/–) 25...Rac8 26.Qf3 Rf8 27.Qe2 e4 (better is 27...Rfc8!?=) 28.Bg7 Kg7 29.Rd2 (29.Rc4 Rd8+/–) 29...Qe7 30.Rcd1 Rf7 31.Qc4 c5 32.Qc3 Qf6 33.Qf6 Kf6 34.Rd6 Kg7 35.bc5 bc5 36.g3 c4 37.R6d2 c3 38.Rc2 a5 39.Rdc1+= Rfd7 40.Rc3+/– Rc3 41.Rc3 Rd3?? 42.Rc4 Ra3+= 43.Re4 a4 44.Kg2 Kf6 45.Rb4 Ke5 46.Rb7 h6 47.Rb6 Rb3? 48.Ra6 a3+/– 49.Rg6 Kf5? 50.Rh6+– a2 51.Ra6 Rb2 52.h4 Kg4 53.e4 Kh5 54.Kf3 1–0. Fournier,Frederic – BLINDFOLD (1605), Active, 2008.

6.Ne5 Bd6 7.Bb5 c6 8.Ba4 (8.Bd3 0–0=) 8...b5=+ 9.Bb3 a5 10.Ng4 (10.ba5 c5=+) 10...Nbd7 11.0–0 (11.ba5 0–0=+) 11...h5 (better is 11...ab4!? 12.ab4 Ra1 13.Ba1 Bb4 14.Nf6 Nf6–/+) 12.Nf6= Nf6 13.f4 (13.ba5 c5=) 13...Qe7 (13...ab4 14.ab4 Ra1 15.Ba1 Bb4 16.Be5–/+) 14.d3 (14.ba5!? c5 15.Bc3=) 14...ab4–/+ 15.ab4 Ra1 16.Ba1 Bb4 17.Qf3 h4 (17...c5 18.Qg3 0–0 19.Be5–/+) 18.Be5 Rh7 19.c3=+ Ba5 20.Bc2 g6 21.d4 Ne4 22.Be4= de4 23.Qg4 Kd7 24.f5 gf5 25.Rf5=+ ef5 26.Qf5+= Qe6 27.Qh7 c5 28.Qh4 b4 29.cb4 cb4 30.Qf6 b3 31.Qe6 Ke6 32.Bg7? Bb4 33.h4 f6 34.h5 Kf7 35.h6 Ba6 36.g4 Bd3 37.g5 fg5 38.d5 Bb1 39.Be5 Kg6 40.d6 Bd3 41.d7 Ba5 42.Bg7 Bb5 43.Kf2 Bd7 44.Kg3 Bc7 45.Kf2 Bd8 (46.Kg3 Bb6–+) 0–1. Stefanova,M (2020) – Foisor,S (2230), EYg16 Herceg Novi SCG, 2005.

6.Ne5 Bd6 7.Be2 =.

6.Ne5 Bd6 7.Qf3 a5 =.

6.Ne5 Nbd7 7.Bb5 Bd6 8.Nc6 (8.Nd7 Nd7 9.Qg4 Rg8=) 8...Qc8=+ 9.Bf6 Bc6?? (better is 9...gf6 10.Ba4 a6=+) 10.Bc6 (10.Bg7!? Rg8 11.Bc6 Rg7 12.Ba8 Qa8+–) 10...gf6 11.Ba8 Qa8 12.0–0 0–0 (12...c5 13.c3+–) 13.Nc3 Kh8 (13...c5 14.bc5 bc5 15.Rb1+–) 14.Nb5 Be7 15.Qh5 a6 16.Nd4 (16.Nc7?! Qb7 17.Nd5 Qd5 18.Qd5 ed5+/–) 16...c5 17.bc5 (17.Nf3 f5+–) 17...Bc5 18.f4 (18.Nf3 Qc6+–) 18...Bd4 19.ed4 f5 ˝–˝. Bryant,Barry (1835) – Bernardo,Angelo, corr SOK–99–E009A, 1999.

6.g3 Bd6 7.Bg2 0–0 8.d4 Nbd7 9.0–0 e5?? (9...c5 10.bc5 bc5 11.Nbd2=+) 10.c3 (better is 10.de5 Ne5 11.Ne5+–) 10...e4=+ 11.Ne1? (11.Nfd2 a5=+) 11...Bc8?? (better is 11...Ba6–+) 12.Nd2=+ c5 (12...a5 13.b5=) 13.Qb3 (better is 13.dc5!? Be7 14.cb6 Nb6 15.f3+=) 13...c4 (13...Qe7 14.bc5 bc5 15.c4=+) 14.Qc2 (better is 14.Qd1=+) 14...Ng4?? (14...Qe7 15.f3 ef3 16.Rf3–/+) 15.h3?? (better is 15.Ne4 Be7 16.Nd2+/–) 15...Nh6 (15...Ngf6 16.f3 ef3 17.Bf3 Bg3 18.e4=+) 16.Kh2 (16.Ne4!? de4 17.Be4=+) 16...Nf6 17.a4 Qd7 18.a5 Nf5 (better is 18...b5–/+) 19.Ne4? (better is 19.ab6 a6 20.Kg1=+) 19...Ne4–+ 20.Be4 de4 21.Qe4 Re8?? (better is 21...Ng3 22.fg3 Qh3 23.Kg1 Qg3 24.Qg2 Qe3 25.Qf2 Qg5 26.Ng2 Bb7–+) 22.Qa8= Ne3 23.Qf3?? (23.fe3 Bg3) 23...Nf1 (23...Qh3 24.Kg1 Qf1 25.Kh2 Ng4 26.Qg4 Qf2 27.Kh1 Re1 28.Re1 Qe1 29.Kg2 Bb7 30.d5 Bd5 31.Qf3 Qe2 32.Kh3 Be6 33.Qg4 Bg4 34.Kh4 Be7) 24.Kg2 (24.Kg1 Nd2 25.Qh5 ba5 26.Nc2–+) 24...Qh3 25.Kg1 Qh2 26.Kf1 Bg4!! 27.Qg2 (27.Qg4 Qh1) 27...Bh3 (27...Be2) 28.Qh3–+ Qh3 29.Ng2 (29.Kg1 Re2 30.Ng2 Bg3 31.ab6 Rf2 32.ba7 Qg2) 29...Qh1 0–1. SlavisaCCCC – EvilTeenWitch, Live Game Caissa's Web, 2004.

6.h3 Be7 7.c4 dc4 8.Bc4 0–0 9.0–0 Nbd7 10.Re1 c5 11.d4 (11.bc5 Rc8+=) 11...Bf3 (11...cb4!? 12.Qe2 a6–/+) 12.Qf3= cb4 13.ab4 Bb4 14.Rd1 a5 15.Bb5 Nd5 16.Bc6 Rc8 17.Bd5 ed5 18.Qd5 Rc2 (18...Nf6 19.Qb5=) 19.Ba3 Ba3 20.Na3 Rc8 21.Nb5 Nf6 22.Qb7 Rc2 23.Rdc1 (23.Na3 Rc8=) 23...Rc1 (23...Qc8 24.Qc8 Rfc8 25.Rc2 Rc2 26.Na3=) 24.Rc1+= Nd5 25.Nc7 Nc7 26.Rc7 Qb8 (better is 26...Qd6!?+=) 27.Rf7!+– Qb7 (27...Rf7 28.Qb8 Double attack (28.Qb8 Deflection; 28.Qb8 Overloading)) 28.Rb7 Rf6 29.e4 Rd6 30.Ra7?? (better is 30.d5+–) 30...Rd4= 31.e5 (31.f3 g5=) 31...a4 (31...Re4!?+=) 32.e6= Kf8 33.e7 (33.Rf7 Ke8 34.Rg7=) 33...Ke8–/+ 34.Kf1 (better is 34.Rb7!?–/+) 34...b5–+ 35.Ke2 Re4 36.Kf3 Re7 37.Ra8 Kf7 (37...Kd7 38.Ra6–+) 38.g4 Re1 39.Ra5 Rb1 40.h4 Rb3 41.Kg2 (41.Ke2 a3–+) 41...a3 42.h5 b4 43.Rc5 (43.f4–+) 43...a2 44.Rc1 (44.Rc7 Kf6 45.Rc1 Rb1 46.Rc6 Kg5–+) 44...Rb1 (44...Rb1 45.Rc7 Ke6–+) 0–1. pillsbury (2145) – tomy (2380), net–chess.com, 2014.

6.c4 c5

7.Qb3 Nbd7 8.d3 Bd6 9.Nbd2 0–0 10.Be2 Qc7 11.b5 e5 12.cd5 Bd5 13.Nc4 e4 (13...a6 14.0–0+=) 14.Ng5 (14.de4 Be4 15.Rd1 Be7+=) 14...ed3= 15.Qd3 Bc4 (15...Bh2 16.Bf3 Bc4 17.Qc4=) 16.Qc4 Ne5 (16...Bh2? 17.Qh4 Bg3 18.fg3+–) 17.Qc2 h6 18.h4 Qe7 (18...hg5 19.hg5 Ne4 20.Qe4+–) 19.Bd3?? (better is 19.Nf3=) 19...Nd3 20.Qd3 hg5 (20...Be5 21.Be5 Qe5 22.Rd1 hg5 23.hg5 Qg5 24.g3–+) 21.hg5 Ne4 22.f3 (22.Rh4 Ng5 23.0–0–0–+) 22...Ng5 23.0–0–0 Rad8 24.Rde1 (24.Qc3 f6–+) 24...Be5 25.Qc4 Bb2 26.Kb2 Rd2 27.Kc1 Rg2 28.Qh4 f5 29.f4 c4 30.Qh8 Kf7 31.Qh5 g6 32.Qh7 Nh7 33.Rh7 Kf6 34.Re7 Ke7 35.e4 Kf6 36.e5 Ke6 37.Re3 Rh8 38.Re1 Rh3 39.Rd1–+ Rd3 40.Rh1 Ra3 41.Kb1 c3 42.Rc1 Rb2 0–1. Franek,Mieczyslaw – Lewczuk,Antoni, Cracovia Poland, 2012.

7.b5 Bd6 8.cd5 ed5 9.Be2 +=.

7.b5 Nbd7 8.Nc3 Bd6 9.Rc1 0–0 10.cd5 Nd5 11.Ne4 Be7 12.Ng3 N7f6 13.Be2 Bd6 14.d4 Ng4 (14...a6 15.ba6 Ba6 16.Ba6 Ra6 17.e4=) 15.dc5= Bc5 (15...bc5 16.Ne4 Bc7 17.Nc5 Ba5 18.Rc3–/+) 16.0–0 Nge3 17.fe3 Ne3 18.Qd8 Rfd8 19.Rc5 Nf1?? (better is 19...bc5 20.Rc1 Rac8+=) 20.Rg5+/– Ng3 21.Rg7 (21.Rg3?! g6=) 21...Kf8 22.hg3 Rac8 (better is 22...Be4+–) 23.Ng5 Rd2 (23...Rd5 24.Rf7 Ke8+–) 24.Rf7 Ke8 25.Bh5 Rg2 26.Kh1 Rb2 (26...Bf3 27.Rf3 Kd7 28.Kg2 h6 29.Rf7 Kd6 30.Ne4 Kd5 31.Nc3 Kd6+–) 27.Rb7 Kf8 28.Nh7 (28.Nh7 Kg8 29.Nf6 Kf8 30.Rf7) 1–0. Fournier,Frederic (2095) – Van Laecke,Bob, Aurorae Borealis gpe3, 2004.

7.b5 Nbd7 8.d4 Qc7 9.Nbd2 Be7 10.Be2 0–0 11.0–0 Bd6 12.h3 Rfe8 13.Rc1 Rac8 14.Bd3= Qb8 15.Rc2 e5 16.de5 Ne5 17.Ne5 Be5 18.Be5 Re5 19.Nf3 Re7 20.cd5 Bd5 21.Bc4 Bc4 22.Rc4 Rd8 23.Qa1 Rd5 24.Rcc1 Red7 25.Rcd1 Qe8 26.Rd5 Rd5 27.a4 Qe4 28.Rd1 Nd7 29.Rd5 Qd5 30.Qc1 Nf6 31.Qd2 Qd2 32.Nd2 Nd5 33.Nb1 f5 34.Kf1= Kf7 35.Ke2 Ke6 36.Kd3 g5 37.g3 h6 (37...h5 38.Nd2=) ˝–˝. Schmidbauer,Josef – Foierl,Siegfried, Niederbayern–chT, 1999.

7.b5 Be7 8.Qc2 Nbd7 9.Be2 0–0 10.h4 Ne4 11.d3 Nef6 12.Nbd2 dc4 13.dc4 Qc7 14.Ng5 h6 15.0–0–0 a6 (15...hg5 16.hg5 Rfd8 17.gf6 Bf6 18.Qh7 Kf8 19.Bf3=; 15...Bg2 16.Rhg1 Bb7 17.Ne6 fe6 18.Rg7 Kg7 19.Rg1 Qg3 20.Rg3 Kh8 21.Qg6 Rf7 22.Qf7 a6 23.Qg7) 16.Ndf3 (better is 16.Nge4!?–/+) 16...ab5?? (better is 16...hg5 17.hg5 Ne4–+) 17.Rd7+– (17.Rd7 Qd7 18.Bf6+–) 1–0. combijack (1920) – smallearedbonobo (1865), gameknot.com, 2013.

7.b5 g6 8.Be2 (8.cd5 ed5 9.Be2 Bg7=) 8...Bg7 9.0–0 0–0 (9...a6 10.ba6 Na6 11.cd5 Qd5 12.Nc3=) 10.d3 (10.d4 dc4 11.dc5 bc5=) 10...a6 11.a4 (11.Nc3 d4 12.ed4 cd4=) 11...Nbd7 (11...dc4 12.dc4 Qe7 13.Qb3=) 12.Nbd2 Qc7 (12...dc4 13.Nc4 Bd5 14.Qc2=) 13.Rc1 (13.ba6 Ra6 14.cd5 ed5=) 13...ab5 (13...dc4 14.Nc4 ab5 15.ab5+=) 14.ab5 (14.cb5 e5=) 14...e5 (14...dc4 15.Nc4 Ng4 16.g3+=) 15.cd5 (15.Ra1 e4 16.Ng5 Ra1 17.Ba1 h6+=) 15...Nd5 16.e4 (16.Qb3!?=) 16...Nf4+= 17.g3 (17.Ra1 f5+=) 17...Ne6 (17...Ne2 18.Qe2 Ra2 19.Nc4–/+) 18.Nb3 (18.Qb3 Rfd8+=) 18...Qd6 (18...Ra2 19.Rc2 Rfa8 20.Nc1–/+) 19.Nfd2 (19.Nbd2 f5+=) 19...Nd4 (19...Nc7 20.Nc4 Qe6 21.Bg4–/+) 20.Bd4 (20.Nd4 ed4 21.Re1 Qe6+=) 20...ed4 21.f4 h5 (21...Ra2!?–/+) 22.Bf3= Qe7 23.e5 Bf3 24.Qf3 f6? (better is 24...Rfe8=) 25.Qd5+– Kh7 26.e6 c4 (26...Rfd8 27.ed7 Qd7 28.Qd7 Rd7 29.Nc4+–) 27.dc4 Nc5 28.Nc5 bc5 29.f5 g5 30.Ra1 Rad8 31.Qg2 g4 32.h3 Bh6+/– 33.hg4 Be3 34.Rf2 Rg8 35.b6 Qd6 36.Ne4+/– Qe5 37.Ra7 Kh6 38.Qh3 Threatening mate... how? 38...Rg4 39.Rh7! Kh7 Deflection from h5 40.Qh5 A double attack 40...Kg7 41.Qg4 Kh8 42.Qh5 Kg8 43.Qg6 Kh8 44.Qf6 Qf6 45.Nf6 d3 46.e7 Ra8 47.b7 Re8 48.Ne8 d2 49.b8Q d1Q 50.Kg2 Qd4 51.Nf6 Kg7 52.Qf8# 1–0. Kuhmann,Heinz (1645) – Hintyes,Helmuth (1795), Nuremberg Zabo op 3rd, 2001.

7.bc5 bc5 8.cd5 Bd5 9.Nc3 Qb6 (9...Nbd7 10.Nd5 ed5 11.Be2=) 10.Rb1+= Qc6?? (10...Nbd7 11.Nd5 ed5 12.Ne5+=) 11.Nd5 (better is 11.Bb5 Nbd7 12.Bc6 Bc6+–) 11...Nd5?? (better is 11...ed5 12.Ne5 Qe6+/–) 12.Bg7!+– Bg7 13.Bb5 0–0 14.Bc6 Nc6 15.0–0 Rab8 (15...Rfc8 16.Qc2+–) 16.Qc2 Rfc8 17.Rb8 (17.Qc5 Bb2+–) 17...Rb8 (17...Nb8 18.Rb1 Nb6 19.a4+–) 18.Rb1 Rc8 19.Qc5 Bf8 20.Qc1 Nce7 21.Qb2 Bg7 (21...Nc6 22.e4 Nf4 23.Qb5+–) 22.Qb3 Nb6 23.g3 Ned5 24.d4 Rc3 25.Qb5 Ra3 (25...Bf6 26.a4 Rc8+–) 26.Qe8 Bf8 27.Ne5 (27.Ne5 Nd7 28.Qf7 Kh8 29.Nd7 Bb4 30.Nf8 Nf6 31.Ne6 Ne8 32.Qe8 Bf8 33.Qf8; 27.Ng5 Kg7 28.h4 Nf6 29.Qf7 Kh6 30.Qf6 Kh5 31.Qf7 Kg4 32.Qf3) 1–0. Fournier,Frederic – danyelened, Active, 2008.

7.bc5 bc5 8.Be2 Be7 9.0–0 Qb6 (9...0–0 10.cd5 ed5 11.Qc2=) 10.Qc2 (10.Nc3 0–0+=) 10...Nbd7 11.d4 Rc8 12.Nbd2 Qc7 13.cd5 Bd5 14.Rfc1 Ba8 15.Nb3 Bf3 16.Bf3 c4 17.Nd2 Nb6 18.Be2 Nfd5 19.Bc4 Bg5 (better is 19...0–0!?+/–) 20.Bb5+– Kd8 21.Qc7 (21.Qd3 Qb7+–) 21...Rc7 22.Rc7 Kc7 23.Rc1 Kb8 24.Nf3 Bh6 25.Kf1 Rd8 26.a4 Nb4 27.Ba3 N6d5 (27...a6 28.Bb4 ab5 29.ab5+–) 28.Ne5 f6 29.Nf7 Rc8 30.Rc8 (30.Nh6?! Rc1 31.Bc1 gh6+–) 30...Kc8 31.Nh6 (31.e4 Bf4+–) 31...Nc2 32.Bc5 gh6 33.Ba7 Nc7 34.Bc5 f5 (34...Nb5 35.ab5 Na1 36.e4+–) 35.Bc4 Nd5 36.Bd5 ed5 37.Ke2 Na1 38.Kd1 Nb3 39.Bb4 1–0. Bui Dac Khuong – Tran Nguyen Bao, VIE–chT, 2003.

7.bc5 Bc5 8.d4 Bd6 9.Nbd2 Nbd7 10.cd5 Nd5 11.Nc4 Be7 12.Bd3 0–0 13.0–0 Rc8 14.Nce5 f6 15.Nd7 Qd7 16.Rc1 Rc1 17.Qc1 Rc8 18.Qb1 h6 19.Nd2 Bd6 20.Ne4 Bb8 21.Rc1 Rc1 22.Qc1 f5 23.Nc3 (better is 23.Nd2!?=) 23...Qd6–/+ 24.g3 Nc3 25.Qc3 Qd5 26.e4 fe4 27.Bc4 Qd7 28.Qb3 Bd5 29.Bd5 ed5 30.Bc1 Qc6 31.Be3 Bd6 32.a4 a6 33.Kg2 b5 34.ab5 ab5 35.f3 ef3 36.Kf3 Qc4 Black prepares the advance b4 37.Qb1 Qc6 38.Qb3 b4 39.Kf2 Qc4 40.Qb2 b3 41.Ke1? (41.Bd2–+) 41...Bb4 (41...Qd3 42.Bd2 Qf3 43.Bc3 Qh1 44.Ke2 Qh2 45.Kd1 Qh1 46.Kd2 Qg2 47.Kd1 Qf1 48.Kd2 Bg3 49.Qb3 Be1 50.Kc2 Qe2 51.Kc1 Qe3 52.Kb2 Bc3 53.Qc3 Qc3 54.Kc3–+) 42.Bd2 Qc2 43.Qc2 bc2 44.h4 (44.Ke2 Ba3 45.g4–+) 44…c1Q 0–1. Hal1958 – Tomy, playchess.de, 2006.

7.bc5 Bc5 8.d4 Bd6 9.cd5 Bd5 10.Bb5 Nbd7 11.0–0 a6 12.Bd3 b5 13.Nbd2 0–0 (13...Nb6 14.e4 Bc4 15.Bc4 bc4 16.e5+/–) 14.Rc1 (14.e4 Bc4 15.Bc4 bc4+=) 14...Rc8 (14...Nb6 15.e4 Na4 16.Qc2=) 15.Qe2 (15.e4 Bc4 16.Bc4 bc4+=) 15...Qa5 Exerts pressure on the isolated pawn (better is 15...Bf3 16.Qf3 Qa5=) 16.Rc8 Rc8 17.Rc1?? (better is 17.e4+–) 17...Rc1–/+ 18.Bc1 Ba3 19.Ba3 Qa3 20.Qd1?? (20.Qf1 Nb6–/+) 20...Qc3 (better is 20...Qd3 21.Ne1 Qc3–+) 21.Bf1 Ne4 22.Ne4 Be4 23.Nd2 Bc2 (23...Qc2!? 24.Qe1 Bd5–/+) 24.Qc1 b4 25.Nb1 (25.Ba6!? e5 26.Bb5–/+) 25...Bb1 26.Qb1 b3 27.Ba6 (27.Bd3!?–/+) 27...b2–+ 28.Bd3?? (28.Qf1–+) 28…Qc1 (28...Qc1 29.Qc1 bc1Q (29...bc1N?! 30.Bb5 Nf6 31.Kf1–+; 29...bc1B?! 30.g4–+) 30.Bf1 Nf6–+) 0–1. Fournier,Frederic (1980) – pj0102 (1855), Active (5/0), 2004.

7.bc5 Bc5 8.cd5 Bd5 =.

7.cd5 cb4 8.de6 fe6 9.ab4 Bb4 10.Qa4 Nc6 11.Nd4 +–.

7.cd5 ed5 8.Bb5 Nbd7 9.bc5 Bc5 10.Bf6 Qf6 =.

7.cd5 Bd5 8.Nc3 cb4 (8...Bb7!?=) 9.Nd5+/– Qd5 10.Qa4 Nbd7 11.Bb5 Be7?? (better is 11...Qd6+/–) 12.Bc6+– (12.ab4?! Qd6+/–) 12...Rc8 (12...b5 13.Bd5 ba4 14.Ba8 0–0+–) 13.Bd5 Nd5 14.ab4 Nb4 15.0–0 a5 (15...a6 16.Bg7 Rg8 17.Bc3+–) 16.Ne5 Rc7 (16...Rd8 17.Rfc1 Bf6 18.Nd7 Bb2 19.Nb6 Kf8 20.Qa5+–) 17.Rac1 Bd6 (17...Bc5 18.d4 Ke7 19.dc5 Nc5+–) 18.Rc7 0–0 19.Rd7 Be5 20.Be5 Rc8 21.Rf7! Kf7 (21...Kf7 22.Qd7 Mate attack) 22.Qd7 Kg6 23.Qg7 Kh5 (23...Kf5 24.f3 b5 25.e4) 24.Bf6 Rc5 (24...Rc2 25.Qg5) 25.g4 1–0. Fournier,Frederic (2470) – Lemanant, echecsemail.com (tournoi), 2010.

6.c4 Bd6

7.Qc2 c5 8.b5 Nbd7 9.d4 Qc7 10.Nbd2 a5 11.Bd3 h6 12.Rc1 Rc8 13.e4 (13.cd5 Nd5 (worse is 13...Bd5 14.e4+/–) 14.Ne4 0–0=) 13...Bf4 14.ed5 ed5 15.0–0 0–0 16.g3 (16.dc5 dc4 17.c6 cd3 18.Qd3 Ba8 19.cd7 Qd7 20.Qd7 Nd7+=) 16...Bd2 (better is 16...dc4!? 17.Be2 cd4 18.Bd4 Bf3 19.Bf3 Qd6–/+) 17.Nd2= (worse is 17.Qd2 dc4 18.Be2 Bd5–/+) 17...Qd6 18.f4 (18.Qc3 dc4 19.Bc4 Rfe8=) 18...dc4 19.Nc4? (better is 19.Bc4 Bd5 20.Bd3=) 19...Qd5–+ 20.Ne3? (20.h3 Qh1 21.Kf2 Qg2 22.Ke1 Rfe8 23.Be2–+) 20...Qh1 21.Kf2 Qf3 22.Ke1 Qe3 23.Qe2 Rfe8 (23...cd4!? 24.Qe3 de3 25.Ke2–+) 24.Qe3 Re3 25.Kd2 Ree8 26.dc5 (26.Rfe1 Ne4 27.Be4 Be4–+) 26...Nc5 (26...Rc5?! 27.Rc5 Nc5 28.Bf6 gf6 29.Bc2–+; 26...bc5?! 27.Bf6 Nf6 28.Rfe1–+) 27.Bf5 (27.Rc5 Rc5 28.Bf6 gf6–+) 27…Nb3 (27...Nb3 28.Kd3 Rcd8 29.Kc2 Nc1 30.Bf6 Rd5–+) 0–1. Karlsen,Jan M – Roer,Terje, NOR–chB Stavanger, 2005.

7.d4 dc4 8.Bc4 0–0 9.0–0 a5 10.b5 Nbd7 11.Nbd2 Qe7 (11...c6 12.Rc1=) 12.Qc2 (12.Ne5 Nd5=) 12...e5 (12...c6 13.bc6 Bc6 14.Rfc1=) 13.de5+= Ne5 14.Ne5 Be5 15.Be5 Qe5 16.Rfd1 Rad8 17.Be2 Ne4 18.Ne4 Be4 19.Qc4 (19.Qa4 Rfe8=) 19...Bd5 (19...Rfe8 20.Rac1=) 20.Qh4+= Rd6 21.Qd4 (21.Rac1 c5+=) 21...Qg5 22.Qg4 ˝–˝. Kreuzer,Martin – Duschek, Hockenheim GER, 1994.

7.Be2 Nbd7 8.0–0 dc4 9.Bc4 0–0 10.Nc3 a6 (10...c5 11.bc5 Bf3 12.Qf3=) 11.d4 b5 12.Bd3 Nd5 (12...Qe7 13.Ng5=) 13.Nd5+= Bd5 14.e4 Bb7 15.e5 Be7 16.h3 Nb6 17.Nh2 Nd5 18.Qh5 g6 19.Qg4 h5 20.Qd1 Bg5 21.g4?? Nf4 22.f3 Nh3 23.Kg2 Nf4 24.Kf2 f5 25.gh5 Nh5 26.Rh1? Kg7 27.Bc1?? Rh8 28.Bg5 Qg5 29.Nf1 Rh6?? 30.Rg1?? Qh4–+ 31.Ke2 Bf3! 0–1. maxii – itsaputon, Live Game Caissa's Web, 2004.

7.Nc3 0–0

8.Qc2 Nbd7

9.Nb5 a6 10.Nd6 cd6 11.Qb3 Ne4 12.Rc1 dc4 13.Bc4 d5 14.Be2+= b5 15.0–0 Ndf6 16.d3 Nd6 17.Ne5 Nd7 18.Nc6 (White gets the initiative) 18...Bc6 19.Rc6 Nf5 20.Rfc1 Nf6 21.g3 a5 22.R6c5 a4 23.Qd1 Qe8 24.e4!+– Nd6 25.e5 Nde4?? 26.de4 Ne4 27.Rc6 Qd8 28.f3 Ng5 29.h4 Nf3 30.Bf3 f5 31.ef6 gf6 32.Re6 Kh8 33.Qd5 Qd5 34.Bd5 Rad8 35.Rf6 Rf6 36.Bf6# 1–0. pierre – luser, chesspark.com, 2008.

9.Nb5 a6 10.Nd6 cd6 11.Qb3 Ne4 12.d3 dc4 13.dc4 Rc8 14.Rd1 Qe7 15.Be2 Rfd8 16.Qd3 Ndf6 17.Qd4 =.

9.Nb5 a6 10.Nd6 cd6 11.Qb3 Ne4 12.d3 Ng5 13.Qd1 Rc8 14.Ng5 Qg5 15.Rc1 dc4 16.dc4 Qe7 17.Qh5 =.

9.Nb5 a6 10.Nd6 cd6 11.Qb3 Ne4 12.d3 Ng5 13.Nd2 f6 14.Rd1 a5 15.ba5 Ra5 16.d4 Qe7 17.f3 =.

9.Nb5 a6 10.Nd6 cd6 11.Qb3 Ne4 12.d3 Ng5 13.Be2 Rc8 14.Nd2 dc4 15.Nc4 Bd5 16.Qd1 Nh3 17.Bf3 =.

9.Nb5 a6 10.Nd6 cd6 11.Qb3 Ne4 12.d3 Ng5 13.Ng5 Qg5 14.Qa4 Ne5 15.cd5 Bd5 16.e4 Bb7 17.Rc1 =+.

6.c4 Nbd7

7.Nc3 a5 8.b5 Rc8 =.

7.Nc3 a5 8.cd5 ed5 9.b5 Nc5 10.Be2 Bd6 11.0–0 0–0 12.d3 Qd7 13.Qc2 Rfe8 14.Rfe1 Qg4 15.Nd4 Qh4 16.h3 Bc8 17.Bf3 Bh3?? (better is 17...Qg5+=) 18.gh3+– Qh3 19.Bg2 (19.Bd5 Nd5 20.Nd5 Bh2 21.Kh1 Nd3–+) 19...Qh2 20.Kf1 Re5 (20...Qh5+–) 21.Nf3 Qh5 22.Ne5 Be5 23.d4 Ng4 (23...Bd4 24.ed4 Nce4 25.Ne4 Ne4 26.Qc7 Nd2 27.Kg1 Nf3 28.Bf3 Qf3 29.Qd7+–) 24.de5 Nh2 25.Kg1 Re8 26.Nd5 Re6 (26...Nf3 27.Bf3 Qf3 28.Qd1+–) 27.Qd1 Qh4 28.Nc7 (better is 28.Nf6! gf6 29.Qd8 Kg7 30.ef6 Rf6 31.Bf6 Qf6 32.Qf6 Kf6 33.Kh2 a4+–) 28...Rg6 29.Qd5 Ne6 (29...h6 30.Red1 Kh7 31.Qf7 Qg4 32.Qg6 Qg6 33.Kh2 Nd3+–) 30.Ne6 fe6 31.Qa8 Kf7 32.Qb7 Ke8 33.Rec1 Nf3 1–0. Trkn – guest1957, ICC, 2004.

7.Nc3 a5 8.cd5 Bd5 9.Nd5 Nd5 10.Bb5 +/–.

7.Nc3 dc4 8.Bc4 c5 9.bc5 Rc8 =.

7.Nc3 c5 8.bc5 dc4 9.Bc4 Bc5 10.d4 =.

7.Nc3 c5 8.bc5 Nc5 9.d4+= Nce4 10.Ne5 (10.Qa4 Qd7+=) 10...Nc3 (10...dc4 11.Ne4 Be4 12.f3+=) 11.Bc3 Bd6 12.Qa4 Nd7 13.Bb4 (13.Nc6 Qc7 14.Ne5=+) 13...Be5=+ 14.de5 Qc7 (14...dc4!? 15.Rc1 Rc8=+) 15.Bd6+= Qc6 16.Qc6 Bc6 17.cd5 Bd5 18.Rc1 f6 (18...Rd8 19.Rc7+=) 19.ef6+/– Nf6 (19...gf6 20.Rc7+/–) 20.Bb5 (20.Rc7 Nd7+/–) 20...Kf7 (20...Kd8 21.f3+=) 21.0–0 (21.Rc7 Kg6+/–) 21...Rac8 22.Ba6 Rcd8 23.Rc7 Kg6 24.Be5 Kf5 25.Bg3 Rd7+= 26.Rfc1 Rhd8 27.f3 Bb3 28.e4 Kg6 29.Be2 Ba4 30.Rd7 Rd7 31.Bc4 Kf7 32.Bf4 b5 33.Ba2 Ne8 34.Kf2 h6 35.Rc6 +/–. Johnston,R – Calton,DW, Detroit–ch MI clsB, 1994.

7.Nc3 c6 8.cd5 ed5 9.Be2 Bd6 =.

7.Nc3 c6 8.Be2 dc4 9.Bc4 a5 10.ba5 Ra5 11.d4 =.

7.Nc3 c6 8.Be2 Bd6 9.0–0 (9.cd5 ed5 10.Nd4 0–0=) 9...0–0 (9...dc4 10.Bc4 a5 11.b5=) 10.h3 (10.d4 dc4 11.e4 Be7 12.Bc4 c5=) 10...e5 (10...dc4 11.Bc4 b5 12.Be2=) 11.cd5 cd5 12.Nb5 (12.d4 e4 13.Nh4 Bb8=) 12...Qe7 (12...Bb8 13.Rc1=) 13.Rc1 (13.Nh4 Bb8+=) 13...a6 (13...Rfc8 14.Rc8 Bc8 15.d4=) 14.Nd6 Qd6 15.d4 e4 16.Ne5 Rac8 (16...Rfc8 17.Rc8 Rc8 18.Nd7 Nd7 19.f3=) 17.Qd2 (17.Qb3 Qe6=) 17...Rc1 (17...b5 18.Rc8 Rc8 19.Rc1=) 18.Rc1+= Rc8 (18...b5 19.Qd1=) 19.Rc8 Bc8 20.Qc2 (better is 20.Qc3 Bb7 21.a4+=) 20...b5?? (better is 20...Bb7+=) 21.Qc8+– Nf8 22.Qb7 N6d7 23.Nd7 Nd7 24.Bg4 Nf8 25.Bc8 g6 26.Qa6 Qc7 27.a4 Qc2 28.Ba3 ba4 29.b5 (29...Qc3 30.Bf8 Qc1 31.Kh2 Kf8 32.Qd6 Kg7 33.b6 Qc8 34.Qc7+– (34.Qd5?! Qb8 35.Qe5 Qe5 36.de5 a3+/–)) 1–0. kiloracer (1755) – wbartier (1790), net–chess.com, 2005.

7.Nc3 Bd6 8.Be2 (8.cd5 ed5 9.Nb5 Be7+=) 8...0–0 (8...dc4 9.Nb5=) 9.0–0 (9.cd5 Nd5 10.Nb5 Be7=) 9...Qe7 (9...dc4 10.Nb5=) 10.d4 (10.cd5 Nd5 11.Nb5 e5=) 10...c5 (better is 10...dc4 11.Bc4 h6=) 11.b5 (11.bc5!? bc5 12.cd5 ed5 13.dc5 Bc5 14.Rb1=) 11...Rac8 (11...dc4 12.Nd2+=) 12.cd5+= cd4 (12...Nd5 13.Rc1+=) 13.Nd4= Nd5 14.Nd5 Bd5 (14...ed5? 15.Nf5 Qe6 16.Ng7+–) 15.Bf3 Bf3 (15...Be5 16.Bd5 ed5 17.Rc1=) 16.Qf3 Ne5 (16...Qg5 17.Rfd1=) 17.Qe2 Rc7 (17...Bc5 18.f4 Bd4 19.Bd4=) 18.a4 (18.f4 Ng6+/–) 18...Rfc8 (18...Nc4 19.Nc6 Rc6 20.bc6 Nb2 21.Qb2+/–) 19.Rac1 (19.f4 Ng6+=) 19...Qh4 (19...Rc1 20.Rc1 Rc1 21.Bc1=) 20.g3 Qe4 (20...Qd8 21.Rc7 Qc7 22.f4+=) 21.Rc7 Rc7 22.Rc1 (22.Rd1 Rd7 23.f4 Ng6+=) 22...Bc5 (22...Rc1!? 23.Bc1 Bc5–/+) 23.Qd1 (23.f3 Qg6=) 23...h6+= 24.Ne6? (better is 24.Qe2!?+=) 24...Rd7–/+ 25.Nd4 Bd4 26.Bd4 Nf3 27.Kf1 Nh2 28.Ke2 Nf3 29.Rc4 Nd4 30.Rd4 Rd4 31.Qd4 Qd4 32.ed4 Kf8 33.Kd3 Ke7 34.Kc4 Kd6 35.f4?? g6 36.Kd3 Kd5 37.Ke3 f6 38.g4?? h5 39.f5+– h4 40.fg6 1–0. Holub,Tomas – Zavesicky,Petr, Karvina op, 2003.

7.d3 c5 8.bc5 Bc5 9.cd5 Bd5 10.Nc3 =.

7.d3 Bd6 8.Nbd2 0–0 9.Be2 Re8 10.0–0 c5 11.b5 (11.bc5 Nc5 12.Rc1 Rc8=) 11...Rc8 (11...Qc7 12.a4+=) 12.Re1 Qc7 13.h3 e5 (13...h6 14.Qc2=) 14.cd5= Bd5 (14...Nd5 15.Nc4=) 15.Rc1 (15.e4 Be6+=) 15...Qb7 (15...e4 16.de4 Ne4 17.Ne4 Be4 18.Bc4=) 16.Nc4+= Bb8 17.e4 Bc4 18.Rc4 Bc7 19.Qb3 g6 (19...h6 20.Nh4+=) 20.Ra4+/– h6 21.Rc1 Re7 22.Nh4 (22.Bc3 Rd8+/–) 22...Kg7 23.Rcc4 (23.Re1 Nf8+/–) 23...Rd8 (23...Nf8 24.Nf3+=) 24.Qc3 (24.Rc2 Nf8+=) 24...Nf8 (24...Ne8 25.Qb3=) 25.f4+= Rd4 (25...N8d7!? 26.f5 g5+=) 26.f5+/– Qb8 27.Qe1 Red7 28.Bd4 ed4+= 29.Qf1 Bg3+= 30.Nf3 gf5 31.ef5 Qf4 32.Ne1 Qe3–/+ 33.Kh1 Re7 34.Rc2 Be1 35.Qe1= Nh5 36.Kh2+/– Nf4 Attacking the isolated pawn on d3 37.f6 Kf6+= 38.Qh4 Kg7 39.Bf1 N8g6 40.Qg3 Qe5 41.Rac4? h5–+ 42.Kh1 h4 43.Qf3–/+ Nh5 44.Rf2 Ng3 45.Kg1 Nf1 46.Rf1= Qe3 47.Qe3 Re3 48.Ra4 Re7 49.Rd1 Nf4 50.Rd2 Ne2 51.Kf2 Nc3 52.Ra6 Nb5 53.a4 Nc3 54.a5 Nd5 55.ab6 ab6= 56.Re2 Re3 57.Re3 de3 58.Kf3 Kf6 59.Ra8 Ke5 60.Rh8 Kd4–/+ 61.Rd8? b5–+ Black intends c4 62.Ke2?? b4 63.Kd1 f5 64.Kc2 c4 65.dc4–/+ Kc4 66.Rh8?? f4 67.Rb8?? Kd4 68.Rd8?? b3!–+ 69.Kc1 Kc4 70.Re8 Kd3 71.Rd8 e2 72.Re8 Ne3 73.Rd8 Kc3 74.Rc8 Nc4 Black prepares the advance b2 75.Re8 b2 (75...b2 76.Kb1 Nd2 77.Ka2 b1Q 78.Ka3 Qb3) 0–1. Bartle,Georg (1720) – Bauer,Armin2 (1900), 7th ch–Euro Senior, Hockenheim GER, 2007.

7.d3 Bd6 8.Nbd2 (8.cd5 ed5 9.Nh4 c5=) 8...c5 (8...0–0 9.cd5 Nd5 10.Nc4=) 9.Qb3 (9.bc5 bc5 10.cd5 ed5= (worse is 10...Bd5 11.e4+/–)) 9...0–0+= 10.Be2 Rc8 (10...Qe7 11.b5+=) 11.0–0 (11.b5 Ra8=) 11...Bb8 (11...a6 12.b5=) 12.Rfc1 (12.b5 Re8=) 12...Qe7 (12...e5 13.b5=) 13.Nf1 (13.b5 Rfd8=) 13...dc4 14.dc4 (worse is 14.Rc4 Bd5 15.b5 Bc4 16.Qc4 Rfe8–/+) 14...Ne4 (14...a6 15.b5=) 15.Rd1 Rfd8 16.b5 Ng5 (16...Bd6 17.N1d2=) 17.Ng5 (17.Qc3 f5 18.N1d2 e5=) 17...Qg5 The mate threat is Qxg2 18.f3 Nf8 19.Qc3 (19.Rd8 Rd8 20.Rd1 Ng6=) 19...f6 (19...Rd7 20.Rd7 Nd7 21.Rd1=) 20.Qe1 Ng6 21.Qf2 f5 (21...Nh4 22.a4=) 22.f4 Qe7 23.Ng3 (23.Bh5 Nh4 24.g3 Ng6=) 23...Rd1 (23...Nh4 24.Nh5 e5 25.Bf1=) 24.Rd1+= Rf8 25.Nh5 e5 26.Bf3 Bf3 27.Qf3 Re8 28.Qd5+/– Kf8 29.Qd7 Qf7 30.Rd5?? Ne7–/+ 31.Rd2? Qh5–+ 32.Rf2 Qh6 33.g3 Qd6 34.Rd2? Qd7 35.Rd7 Ng6 36.Kf2 h6 37.a4 h5 38.h4 Kg8 39.Bc3 Kf8?? 40.a5?? ba5–+ 41.Ba5 ef4 42.ef4 Ne7 43.Bc7 Bc7 44.Rc7 Ra8 45.Ke3 Ke8 46.Rc5 Rc8 47.Kd4 Rc5 48.Kc5 Kd7 49.Kd4 Kd6 50.c5 Ke6 51.b6? Nc6 52.Kc4 a6 53.b7 g6 54.Kc3 Kd5 55.Kb3 Kc5 56.Kc3 a5 57.Kb3 Kb6 (57...Kb6 58.b8R Nb8–+) 0–1. Amor Alcaide,M – Riera Sola,M, La Pobla de Lillet, 2003.

7.d3 Bd6 8.cd5 ed5 9.Nh4 c5 =.

7.d3 Bd6 8.Be2 0–0 9.Qc2 (9.cd5 Nd5 10.Nbd2 c5=) 9...h6 (9...dc4 10.Qc4 c5 11.0–0+=) 10.Nbd2 (10.cd5 Nd5 11.Nbd2 c5=) 10...Qe7 (10...c5 11.bc5 Bc5 12.0–0=) 11.0–0 (11.cd5 Nd5 (worse is 11...Bd5 12.e4+/–) 12.Nc4 e5=) 11...Rac8 (11...c5 12.bc5 Bc5 13.Rfc1=) 12.d4 (12.e4 Bf4=) 12...c5 13.dc5 (13.Rfc1 Rc7=) 13...bc5 14.b5 Bc7 (14...Rfd8 15.Rad1=) 15.Qc3 (15.Rac1 e5=) 15...Qd6 (15...e5 16.cd5 e4 17.Nh4 Bd5 18.Nc4+=) 16.Bd3 (16.Rfd1 Rfd8=) 16...Rfe8 (16...Nb6 17.Bc2=) 17.e4 (17.Rfd1!?+=) 17...d4+= 18.Qc2 Ng4 Will h2 fall? 19.h3 Nge5 (19...Nh2 20.Rfd1 Nf3 21.Nf3+=) 20.Ne5 Ne5 21.f4 Nd7 (21...Nd3 22.Qd3 e5 23.f5+=) 22.e5= Qe7 23.Be4 (23.Bh7 Kh8 24.Be4 Rb8=) 23...Be4 (23...Rb8 24.Qd3=) 24.Qe4 (24.Ne4 Red8=) 24...f6 25.Nf3 Rf8 26.Rae1 f5 27.Qd3= Rf7 28.Bc1 Nb6 29.Qc2 Qd8 30.Bd2+= Na8 31.Qa4 Bb6 32.g3 Qd7 33.Ba5 Rb8 34.Rd1 Ba5 35.Qa5 Nb6 36.Rc1 Qb7 37.Nd2 Rc7 38.Rfe1 Ra8 39.Rc2 a6–/+ 40.Rb2 ab5 41.Qb5 Ra3 42.Qb6?? Rg3 (42...Rg3 43.Kh2 Qg2#) 0–1. Faas,D – Kupsch,W, Fischbach, 1993.

7.d4 dc4 8.Bc4 Bd6 9.0–0 =.

7.d4 dc4 8.Bc4 Be7 9.Nbd2 0–0 10.Qe2 c5 11.b5 cd4 12.ed4 Qc7 13.g3 Rac8 14.Bd3 Ba8 15.Rg1 Nd5 16.Ne4 N7f6 17.Nfd2 Ne4 18.Ne4 Nf6 19.f3 Ne4 (19...Qd7!?+=) 20.fe4= f5 (20...Qd7 21.Rf1=) 21.e5 (better is 21.ef5!? Bg5 22.Rf1 (22.fe6? Rf3–+; 22.Qe6?! Kh8 23.Kf1 Rce8–/+) 22...ef5 23.Rf5+=) 21...Be4 22.Be4 fe4 23.Qe4 (better is 23.Rf1!?=) 23...Qc4–/+ 24.Rd1 Qb5 25.Rd2 Bg5 26.Rc2?? (26.Re2–+) 26...Rc2 (26...Qa5 27.Kd1 Qa4–+) 27.Qc2 Be3 28.Rh1 h5 29.Qe2?? (29.Qc3–+) 29...Bf2 30.Kd1 Qb3 (30...Qb3 31.Kc1 Be3 32.Kb1 Rf2 33.Qf2 Bf2–+) 0–1. Laco,Giuseppe (2160) – Sulava,Nenad (2335), Caorle op, 1984. (=1.c4 b6 2.b4 Bb7 3.Bb2 Nf6 4.e3 e6 5.a3 d5 6.Nf3 Nbd7)

7.d4 Be7 8.c5 a5 9.Qc2 c6 10.Bd3 =.

7.d4 Be7 8.c5 bc5 9.bc5 (9.dc5 a5+=) 9...c6 10.Qc2 Qc7 11.Nbd2 Rb8 (11...0–0 12.Bd3=) 12.Bd3+= a5 13.a4 Ra8 14.0–0 Ba6 15.Ba6 Ra6 16.Bc3 0–0 17.Nb3 Rfa8 18.Ba5 (better is 18.Rab1!?=) 18...Ra5–/+ 19.Na5 Ra5 20.Rfb1 Ra8 21.Rb4 Ne4 22.Rab1 Qd8 23.Rb7 Bf8 24.Qb3? (better is 24.Ne1=) 24...Ndf6?? (24...Ndc5!? 25.dc5 Nc5–/+) 25.Ne5?? (better is 25.Rb8 Rb8 26.Qb8+/–) 25...Nd2–/+ 26.Qb6 Nb1 27.Qb1 (better is 27.Qd8!? Rd8 28.Rb1–/+) 27...Ra4–+ 28.Nf7?? (better is 28.h3 Ne4 29.Nc6–+) 28...Qa5 (28...Qa8 29.h4 Ra1 30.Ne5–+) 29.Ng5 (29.Qd1 Ra1 30.Rb1 Rb1 (30...Kf7?! 31.Ra1 Qc7 32.Ra6=) 31.Qb1 Kf7–+) 29...Ra1 30.Ne6 (30.h3 e5! 31.Ne6 Ne4–+) 30...Rb1 (30...Qe1 31.Qe1 Re1) 31.Rb1–+ Qa2 32.Rf1 Kf7 33.Nd8 Ke8 34.Nc6 Qa4 (better is 34...Nd7!? 35.Nb4 Qb3 36.Na6–+) 35.Ne5 Nd7 (better is 35...Be7–+) 36.g3 (36.Nf3 Be7–+) 36...Nc5 (36...Ne5 37.de5 Bc5 38.Rc1–+) 37.Rc1 (37.dc5 Qe4 38.Nc6–+) 37...Qa3 38.Rc5 (38.Rc2 Bd6–+) 38...Bc5 39.dc5 (39.Kg2 Bd6 40.Nf3 Qd3–+) 39...Qc5 (better is 39...Qa1 40.Kg2 Qe5 41.c6–+) 40.Nf3 d4 (better is 40...g5!? 41.h3–+) 41.Nd4 Qc1 42.Kg2 Ke7 43.Kf3 (43.g4 Kf6–+) 43...Kd6 (43...Qh1 44.Ke2 Qh2 45.Ke1–+) 44.g4 (44.Kg2 Qd1–+) 44...Kd5 (better is 44...Qh1 45.Kg3 Qg1 46.Kf3 Qh2 47.Ke4–+) 45.h3 (45.Kg2–+) 45...Qh1 46.Kg3 (46.Ke2 Qh3 47.g5 Qh5 48.Kf1 Qg5–+) 46...Qg1 (better is 46...Ke4 47.f3 Kd3 48.Nf5–+) 47.Kf3 Qh1 (better is 47...Qh2 48.Nf5–+) 48.Kg3 Qg1 (better is 48...Ke4 49.f3 Kd3 50.Nf5–+) 49.Kf3 Qh1 (49...Qh2 50.Nf5–+) 50.Ke2?? (50.Kg3 Ke4 51.Kh4–+) 50...Qh3–+ 51.Kd3 (51.g5 Qg4 52.f3 Qg5–+) 51...Qg4 52.Kd2 (52.f3 Qg2–+) 52...Qg2 (52...h5 53.Ne2–+) 53.Ke2 (53.Ke1–+) 53...Qg4 (53...h5 54.Nc2 Qg4 55.Kd2–+) 54.Kf1?? (54.Kd2 h5 55.Ne2–+) 54...Qd1 55.Kg2 Qd4 (better is 55...h5 56.Nf3–+) 56.ed4 Kd4 57.Kg3 Ke5 58.Kg4 Kf6 59.f3 h6 60.f4 g6 61.Kf3 h5 62.Kg3 Kf5 63.Kf3 h4 64.Kf2 Kf4 (65.Ke2 g5–+) 0–1. Slavisa2 – book3, Live Game Caissa's Web, 2004.

7.d4 Be7 8.Nbd2 0–0 9.Bd3 Ne4 (9...dc4 10.Nc4 b5 11.Na5+=) 10.Qc2 (10.0–0 Nd2 11.Nd2 dc4 12.Nc4 Bd5+=) 10...Ndf6 (10...f5 11.0–0+=) 11.c5 (11.0–0 a5 12.b5 c5+=) 11...Nd2 12.Nd2 a5 (12...a6 13.0–0+=) 13.c6 (13.0–0 bc5 14.dc5 ab4 15.ab4 h6+=) 13...Ba6 (13...Bc8 14.b5+=) 14.b5+= Bc8 15.0–0 h6 (15...Bd6 16.Nf3+=) 16.Nf3+/– Ne8 (16...Bd6 17.Ne5+/–) 17.Ne5 Nd6 (17...Nf6 18.Rfe1+/–) 18.a4 (18.Bh7 Kh8 19.a4 Nc4 20.Nc4 dc4+–) 18...f5 (18...Qe8 19.Ba3+/–) 19.Ng6 (19.Ba3 Bf6+/–) 19...Rf6 (19...Rf7 20.Ne7 Qe7 21.Rad1+/–) 20.Ne7 Qe7 21.Ba3 (21.Rac1 Ne4+/–) 21...Qd8 (21...e5 22.de5 Qe5 23.Bb2+–) 22.f3 Nf7 23.Bc1 (23.Qc3 Nd6+/–) 23...Qe8 (23...e5 24.de5 Ne5 25.Bb2+/–) 24.Bb2 (24.Qb3 Nd6+/–) 24...e5 Black intends f4 25.de5 (25.e4 fe4 26.fe4 Rd6+/–) 25...Ne5 26.Be2 (26.Rad1+/–) 26...Rf8? (better is 26...f4+=) 27.Qc3+– f4? (27...d4 28.Qd4 Nf3 29.Bf3 Qg6+–) 28.Qe5 Qg6 29.Qd5 Be6 30.Qe4 Bf5 31.Bc4 Kh8 32.Qf4 Bh3 33.Qg3 Qg3 34.hg3 Bf5 35.e4 Bg6 1–0. Frech,Josef – Maringer,Walter, Velden op, 1996.

7.d4 Be7 8.Bd3 dc4 9.Bc4 Bd5 10.Bd5 Nd5 +=.

7.Bd4 dc4 8.Bc4 c5 9.bc5 Bc5 10.Bc5 Nc5 =.

7.cd5 ed5 8.Bb5 c6 9.Ba4 Bd6 10.0–0 0–0 11.Nc3 Re8 12.Ne2 Rc8 (12...b5 13.Bc2=+) 13.Ng3 Ba6 14.Nf5 Bf8 (14...Be5 15.d4 Bb8 16.Re1=+) 15.b5 (better is 15.d3!?+=) 15...Bb5=+ 16.Bb5 cb5 17.N3d4 g6 18.Ng3 a6 19.f4 Bg7 20.f5 Ne5 21.Ne6 (better is 21.fg6!? fg6 22.Qb3–/+) 21...fe6–+ 22.Be5 ef5 23.Bd4 Ne4 24.Nf5? (better is 24.Ne2–+) 24...gf5 25.Bg7 Kg7 26.Rf5 Rf8 (26...Kh8 27.Qg4–+) 27.Qg4 Kh8 28.Raf1 Rf5 29.Rf5 (29.Qf5 Rc6–+ (29...Nd2?! 30.Qe5 Kg8 31.Qg3 Kh8 32.Qe5 Kg8 33.Qg3 Kh8 34.Qe5=)) 29…Rc1 (30.Rf1 Rf1 31.Kf1 Qc7–+) 0–1. Krons,Andreas – Neubauer,Juergen, Porz op, 1994.

7.cd5 ed5 8.Nc3 Bd6 9.Bd3 Ne5 10.Ne5 Be5 11.0–0 Qe7 12.Rb1 0–0–0 13.e4 de4 14.Bb5 h5 15.Qe2 g5 16.Nd1 g4 17.Be5 Qe5 18.Ne3 Nd5 19.Nc4 Qe7 20.d3 ed3 21.Qd3 Nf4 22.Qf5 Ne6 23.Ne5 Kb8 24.Bc6 Nd4 25.Qe4 Bc6 26.Nc6 Nc6 27.Qc6 f5 28.a4 f4 29.a5 h4 30.a6 Kc8 31.Rbd1 Rd1 32.Rd1 Re8 33.Qb7# 1–0. Nautiluschess – Bogardan, ICS blitz, 2001.

7.cd5 ed5 8.Nc3 Be7 9.Be2 0–0 10.0–0 c5 11.b5 (11.bc5 bc5 12.Rb1 a6=) 11...Ne4 12.d4 Nc3 13.Bc3 Qc7 Black prepares the advance c4 14.a4 (14.dc5!? bc5 15.Qc2=) 14...c4+= 15.Qb1 a5 (15...Nf6 16.Nd2+=) 16.Rc1 f5 17.g3 Bd6 18.Bb2 Rae8 19.Bf1 Qd8 20.Ba3 Ba3 21.Ra3 Qf6 22.Bg2 Rf7 23.Rf1 Rfe7 24.Nh4 g6 25.Rc3 Qd6 26.Nf3 Kg7 27.Qc1 h6 28.Qb1 Rf8 29.Nh4 (29.Rd1 h5+=) 29...Bc8 (29...Nf6 30.Rc2–/+) 30.f4 (30.Nf3!?=) 30...Nf6–/+ 31.Nf3 (31.Qa2 Rfe8 32.Re1 Qb4–/+) 31...Ne4 32.Rcc1 Qa3 33.Rfe1 Qa4 34.Rc2 Qa3 35.Ne5 Qd6 36.Be4 fe4 (worse is 36...de4 37.Nc4 Qf6 38.d5+/–) 37.g4 Bd7 38.h3 (38.Ra2 Kg8–+) 38...Be8 (38...a4 39.Ra2 Ra8 40.Rf1–+) 39.Rb2 (39.Ra2 Rb7–/+) 39...Qa3 (39...a4 40.Qc2 a3 41.Ra2–+) 40.Qc2 (better is 40.Ra2 Qb4 41.Rb2–/+) 40...Qd6 (40...a4!? 41.Kf2–+) 41.Qc3 (41.Qb1 a4 42.Ra2–+) 41...Kh7 42.Kg2 Qf6 43.Qa3 Rc7 44.Rc1 Qe7 45.Qc3 Qh4 (45...Bd7 46.Rh1–/+) 46.Rf1 (46.Qa3 Rf6–/+) 46...Rg7 47.Rff2 Bd7 48.Rb1 Qe7 49.Kg3 Qd6 50.Rbb2 Qe7 51.Rh2 (51.Rb1 h5–/+) 51...Qd6 52.Rhf2 Qe7 53.Rh2 (53.Rb1 h5 54.Ra1–/+) 53...Qd6 (better is 53...h5–+) 54.Rhf2= ˝–˝. Dmitriev,Ig (2260) – Iliushkin,E (2185), Vladimir Dvorkovich Mem, 2015. (=1.Nf3 Nf6 2.e3 b6 3.c4 e6 4.a3 Bb7 5.b4 d5 6.Bb2 Nbd7)

7.cd5 ed5 8.d4 Be7 9.Nbd2 0–0 10.Bd3 g6 (10...c5 11.dc5 bc5 12.bc5 Nc5 13.Be2=) 11.Qe2 c6 12.0–0 1–0. Fournier,Frederic (2215) – Murrate,Bruno, Grand Prix Oise, 2001.

7.Be2 c5 8.b5 Be7 9.0–0 0–0 10.d3 Qc7 11.Nbd2 Rad8 12.Qc2 e5 13.Nb3 (13.cd5 Bd5 14.e4 Bb7+=) 13...d4 14.e4 Qd6 (14...Ra8 15.Rfb1=) 15.Nh4 g6 16.Bc1 (better is 16.Nf3!?=) 16...Ne4!–/+ 17.de4 Bh4 18.f4 (18.Bd3!?–/+) 18...f5–+ 19.Bd3 fe4 20.Be4 Be4 21.Qe4 Bf6 22.Nd2 (22.f5!? Be7 23.Qg4–/+) 22...ef4–+ 23.Qf4 (23.Nf3 Bg7–+) 23...Be5 24.Qh4 d3 25.Rb1 Bd4 26.Kh1 Rf1 27.Nf1 Rf8 28.Bh6 Bg7 29.Bd2 Qe6 30.Re1?? Qe2!! 31.Kg1 Bd4 32.Be3 Rf1! 33.Rf1 Be3 (33...Be3 34.Qf2 d2 35.h3 Bf2 36.Kh2 Qf1 37.h4 d1Q 38.h5 Qh5) 0–1. Trip,R – van Dulken,A, Barneveld, 2000.

7.Be2 Be7 8.0–0 dc4 9.Bc4 c5 =.

7.Be2 Be7 8.d3 0–0 9.0–0 a5 10.b5 dc4 11.dc4 Nc5 12.a4 Qd1 13.Rd1 Rfd8 14.Nbd2 Nfe4 15.Bd4 Bf6 16.Bf6 gf6 17.Ne4 Be4 18.Rd8 Rd8 19.Ra2 Kf8 20.Nd2 Ke7 21.f3 (21.Ne4 Ne4 22.Kf1 e5=) 21...Bd3 (21...Bg6 22.Kf2+=) 22.Kf2 (22.Kf1 Bg6=) 22...f5 23.g3 Kd6 24.Bd3 Nd3 25.Kf1 Kc5 26.f4 Kb4 27.Nf3 Nc5 28.Ne5 Kb3 29.Ra1 Na4 30.Rb1 (30.Nf7 Rd2 31.h3 Nc3–+) 30...Kc2 31.Re1 Rd1 32.Nf7 0–1. Fournier,Frederic (1860) – Vernay,Denis (1920), Coupe, 2005.

7.Be2 Be7 8.cd5 ed5 (8...Nd5 9.0–0 0–0 10.Nc3=) 9.0–0 0–0 (9...c5 10.bc5 bc5 11.Nc3=) 10.d3 (10.d4 c6=) 10...c5 11.Qb3 (11.bc5 bc5 12.Nc3 Rb8=) 11...Qc7 Black prepares the advance c4 (11...d4 12.Nbd2=) 12.Nbd2 (12.Rc1 a6=) 12...Rfe8 (12...Qd6 13.bc5 bc5 14.Qc2= (worse is 14.Qb7 Rfb8 15.Qa8 Ra8–/+)) 13.Rfc1 Qd6 14.b5 (14.bc5 Nc5 15.Qd1 Rac8=) 14...Bd8 (14...a6 15.a4=) 15.d4 (15.Bc3 Bc7=) 15...c4 16.Qc2 Ne4 (16...a6 17.a4=) 17.Ne4 Re4 (worse is 17...de4 18.Ne5+/–) 18.Ne5 Bc7 (18...Ne5 19.de5 Qd7 20.a4=) 19.Bf3 (19.g3+=) 19...Rh4 (better is 19...Ne5!? 20.de5 Re5 21.Be5 Qe5=) 20.g3+/– Rh6 21.Nc4! Qf6 (21...dc4 A pinning theme 22.Bb7) 22.Nd2 (22.Bg2 Rc8+/–) 22...Bd6 23.Bg4 (better is 23.Qb3+/–) 23...Rh2? (better is 23...Qe7+/–) 24.Kh2?? (better is 24.Nf1 Rh6 25.Bd7+–) 24...Qf2–/+ 25.Kh1 Qg3 Threatening mate... how? 26.Nf1 Qg4 27.Qg2 Qh4 28.Nh2 Re8 29.Rg1 The mate threat is Qxg7 29...g6 30.Bc1 Re4 31.Ra2–/+ Nf6 32.Qg5 Qg5 33.Rg5 Rh4 34.Kg1 h6 35.Rgg2 Kg7 36.Nf3 Rh5 37.Kf1 Bc8 38.Ke1 Bf5 39.Nd2? Bd3 40.Rg1 Rh3 41.Nf1 Bb5 42.Bd2 Bc4 43.Ra1 Ne4 44.Bc1 Rf3 45.Rb1 Be7 46.Nh2 Bh4 47.Kd1 Rf2 48.Rb2 Nc3 49.Ke1 Re2 (49...Re2 50.Kf1 Rb2#) 0–1. Bartle,Georg – Karcher,Christian Stefan, Baden–ch HT2, 2002.

7.Nc3 Be7

8.Rc1 0–0 9.cd5 Nd5 10.Qa4 =.

8.Rc1 a5 9.b5 0–0 10.cd5 Nd5 11.Nd5 Bd5 12.Be2 Nc5 (12...Rc8 13.Qa4=) 13.Qc2 (13.d4 Bb3 14.Qd2 Ne4+=) 13...Be4 14.Qc3 Threatening mate: Qxg7 14...Bf6 15.d4 Na4 16.Qb3 Nb2 17.Qb2 Rc8 18.0–0 Qd5 19.a4 Be7 20.Ne1 Bd6 (20...c5 21.bc6 Rc6 22.Bf3=) 21.Bf3 f5 22.Be4 Qe4 23.Qc2 The backward pawn on c7 becomes a target 23...Qh4 Threatening mate... how? 24.f4 Rf6 25.Nf3 Qh5 26.Qc6 Rff8 (26...Rh6 27.Qd7 Re8 28.Rc6+/–) 27.Ne5+/– Qe2 28.Rf3 Rfd8 29.d5 (29.Qc2!? Qc2 30.Rc2 Be5 31.fe5+/–) 29...Qa2= 30.Rc4 (30.de6 Qe6 31.Qc4 Qc4 32.Rc4 Bc5=) 30...Be5 31.fe5 Qa1 (31...ed5!? 32.Qe6 Kh8=) 32.Rf1+= ˝–˝. Green,SL – Boles,CE, corr GB KO–T37, 1972.

8.Rc1 c5 9.Qb3 0–0 (9...dc4 10.Bc4 (10.Qc4 0–0 11.Be2 Rc8 12.Qb3 cb4 13.ab4 Nd5 14.Nd5 Rc1 15.Bc1) 10...0–0 11.h3 a5 12.bc5 Nc5 13.Qc2 Rc8 14.0–0 Nce4 15.Qb3) 10.b5 (10.Be2 dc4 11.Qc4 Rc8 12.Qb3 cb4 13.ab4 Nd5 14.Ba3 Nc3 15.Rc3; 10.cd5 ed5 11.Be2 c4 12.Qc2 a5 13.b5 Nc5 14.0–0 Nb3 15.Rce1) 10...dc4 (10...d4 11.Na4 de3 12.de3 Qc7 13.Be2 Rad8 14.Rd1 Ng4 15.h3) 11.Bc4 Bf3 (11...Qc7 12.Qc2 Bd6 13.Bd3 Be5 14.Be2 Rad8 15.h3) 12.gf3 Ne5 13.Ke2 Qd7 (13...Qc7 14.Ne4 Rfd8 15.h4) 14.Rhg1 (14.Ne4 Ne4 15.fe4) 14...Rfd8 (14...Rad8 15.d3) 15.d3 Kh8 (worse is 15...Nd3 16.Rcd1 Nf4 17.ef4+–) 16.Ne4 Nc4 17.Qc4 (17.Bf6!? gf6 18.Qc4+=) 17...Ne8= 18.Qc3 f6 19.a4 Nc7 20.Qc4 Nd5 21.f4 Nb4 22.Rcd1 Qd5 (22...a6 23.Nc3+=) 23.f3 Qh5 24.Nf2 Nd5 25.Rg3 Bd6 (25...Qh2? 26.Rh3 Qg2 27.Qe4+–) 26.Rdg1 Rd7 27.Qe4 Qf5 (27...Qh2 28.Rh3 (28.Qe6 Nf4 29.ef4 Re7 30.Qe7 Be7–/+) 28...f5 29.Rh2 fe4 30.fe4 Nf4 31.ef4 Bf4 32.Rh4+–) 28.Rg4 Rad8 29.Rd1 Qh5 30.Rdg1 (30.Qe6?? Re7 31.Qe4 Bc7–+) 30...Qf5 (30...Qh2? 31.Rh1 Qh1 32.Nh1+–) 31.Rh4 Qe4 32.Ne4 Bf8 33.Rh5 Nb4?? (33...Be7 34.f5 ef5 35.Rf5+=) 34.d4?? (better is 34.Nf6 gf6 35.Bf6 Bg7 36.Rg7 Rg7 37.Bd8 Rg2 38.Kf1+–) 34...cd4+= 35.Bd4 Nd5 0–1. Morin,Y (2210) – Haessel,D (2200), ch–CAN, Guelph CAN, 2009. (=1.Nf3 Nf6 2.b4 e6 3.a3 b6 4.Bb2 Bb7 5.e3 d5 6.c4 Nbd7)

8.cd5 ed5 9.Bb5 a6 =.

8.Be2 0–0 9.0–0 c5 10.bc5 (10.b5 dc4 11.Bc4 a6=) 10...bc5 (10...dc4 11.Bc4 Nc5 12.d4=) 11.d4 (11.cd5 Nd5 12.Rb1 N7f6=) 11...cd4 12.Nd4 dc4 13.Bc4 Qc7 14.Be2 (14.Qe2 Rfc8 15.Bd3 e5=) 14...Rfd8 15.Rc1 Nc5 16.Qc2 Rac8 17.Rfd1 Bd6 18.h3 a6 (18...e5 19.Ncb5 Qa5 20.Bc3+=) 19.Nb3 (19.Bd3 e5 20.Nf3 e4 21.Ne4 Nfe4–+ (21...Be4?! 22.Bf6 gf6 23.Be4 Ne4 24.Qc7 Rc7 25.Rc7 Bc7 26.Rd8 Bd8 27.Nd4–+)) 19...Qe7 (19...Na4 20.Rd2 Qe7 21.Na5 Nc3 22.Bc3–/+) 20.Nc5= Rc5 21.Rd4 (21.Qa4 Rc6=) 21...Rg5 22.Bf1 e5 23.Rd2 Qe6 24.g3 h5 25.h4 Rg6 26.Bg2 e4 27.Na4 Rc8=+ 28.Qd1 Rc1 29.Qc1 Ng4 30.Nc5= Bc5 31.Qc5+= Rh6 32.Rd8+– Kh7 33.Qf8 Nf6+/– 34.Bf6 Rf6+= 35.Qh8 Kg6 36.Rg8 Qb6?? 37.Bh3 Qb1 38.Kg2 Rf2 39.Kf2 Qb2 40.Kg1 Qe5 41.Kh2 Bc6 42.Rd8 Qb2 43.Bg2 Bb5 44.Qf8 (44…Bf1 45.Qd6 f6 46.Qd2 Qd2 47.Rd2+–; better is 44.Rd6!? f6+–) 1–0. Bott,Hans Joachim – Kiefer,Heiko, Baden–ch HT1, 1994.

8.Be2 0–0 9.0–0 c5 10.b5 Qc7 (10...dc4 11.Qc2+=) 11.Rc1 (11.cd5 Nd5 12.Nd5 Bd5=) 11...Rac8 (11...dc4 12.a4+=) 12.d3 Covers e4 (12.cd5 ed5 13.Nb1 Rfe8=) 12...Rfd8 (12...dc4 13.dc4 Rcd8 14.Qc2+=) 13.Qc2 (13.cd5 ed5 14.a4 Ra8=) 13...Qb8 14.e4 (14.Nb1 a6=) 14...Bd6 The bishop intends Be7–d6–e5–d4 (14...dc4 15.dc4 Bd6 16.Rfd1+=) 15.g3 Consolidates f4 (15.cd5 ed5 16.ed5 Nd5=) 15...dc4+= 16.dc4 Qa8 17.Nd2 Be5 18.f3 Controls g4 18...Bd4 'the bishop is the bishop!' 19.Kg2 Ne5 (19...Qb8 20.Kh1–/+) 20.Rce1 (20.Nd1 Ng6+=) 20...Rd7 (20...h5 21.h4+=) 21.Nb3 Rcd8 22.a4 a5 23.h3 Prevents intrusion on g4 (23.Rd1 h6–/+) 23...h5 (23...Qb8 24.Kh2 h5–+) 24.Kh2?? (better is 24.h4+= the only rescuing move) 24...h4!–+ finishing the game 25.gh4 (25.g4 Ng6 26.Kh1 Qb8–+) 25...Ng6 26.Bc1 Qb8 27.f4 Bc3 28.Qc3 Ne4 29.Qe3 (29.Qa1 doesn't change the outcome of the game 29...Nh4 30.Qe5 Qd6–+) 29...Nh4 30.Rd1 (30.Qg1–+ praying for a miracle) 30...Nf5 31.Qg1 Neg3 32.Rd7 Nf1 33.Bf1 (33.Qf1 cannot undo what has already been done 33...Rd7 34.Bd2 Ba8–+) 33...Rd7 34.Qg4 (34.Be2 cannot change what is in store for White 34...Ba8–+) 34...Ba8 35.Bg2 (35.Kg1 doesn't improve anything 35...Qb7 36.Qg2 Qg2 37.Bg2 Rd1 38.Kh2 Bg2 39.Kg2 Rd3–+) 35...Bg2 36.Kg2 Qb7 (36...Qb7 37.Kh2 Qe4–+) 0–1. Sirokmany,Gabor (2155) – Ritter,Gabor (2155), HUN–chT2 Breyer, 2002.

8.Be2 dc4 9.Bc4 c5 10.bc5 =.

7.d4 c5

8.Qa4 cb4 9.ab4 a5 10.ba5 Ra5 11.Qc2 Bb4 12.Nbd2 Ra1 13.Ba1 +=.

8.Qa4 Be7 9.Nc3 0–0 10.Qb3 (10.cd5 cb4 11.ab4 Nd5 12.Nd5 Bd5=) 10...Qc7 (10...dc4 11.Qc4 Bd5 12.Nd5 ed5 13.Qa6+=) 11.dc5 (11.Rc1 Rfc8=) 11...bc5 12.b5 (12.cd5 Nd5 13.Nd5 Bd5 14.Bc4 Bf3 15.gf3 cb4 16.ab4–/+) 12...d4–/+ 13.ed4 (13.Ne2 Qa5 14.Nd2 e5–/+) 13...Bf3 14.gf3 cd4 15.Ne4 Ne4 (15...e5 16.Bd3–/+) 16.fe4 Nc5 17.Qc2 e5 (17...Qa5 18.Qd2 Qd2 19.Kd2 Nb3 20.Kd3 Na1 21.Ba1–+) 18.Rg1 Qb7 (18...Rfd8 19.Bd3–/+) 19.Bd3+= f5 20.ef5 Bf6 21.Rg4 e4! (21...Nd3?! 22.Qd3 Rac8 23.Rc1=) 22.Be4 (22.Re4 Ne4) 22...Rae8 23.f3 d3 24.Qg2 Bb2 25.Qb2 Ne4 26.Re4 Re4 27.fe4 Qe4 28.Kd2 Rf5 29.Kc3 Rf4 30.Qa2 (30.Qb3 Qe5 31.Kb4 Qa1 32.Qd3–+) 30...Qd4 31.Kb4 Rf2 (31...Rf2 32.Qb3 Rb2–+) 0–1. Sebald,Ralph – Roescher,Mark, Dortmund op–B, 1998.

8.b5 a5 9.Bd3 Rc8 10.Nbd2 Bd6 11.Rc1 Qe7 (11...cd4 A) worse is 12.Bd4 e5–+ (12...Ba3?! 13.Ra1 dc4 14.Ra3 cd3 15.Rd3–/+); B) worse is 12.ed4 0–0+=; C) 12.Nd4 Ne5 13.Be2 dc4 14.Nc4 Nc4 15.Rc4 Rc4 16.Bc4+=) 12.a4 (12.0–0 0–0=) 12...e5 (12...cd4 13.Bd4 e5 14.Bb2–+) 13.de5 Ne5 14.Be5 Be5 15.Ne5 Qe5 16.Nf3 Qh5 17.Be2 Rd8 18.Qc2 (18.cd5 Bd5 19.Qc2 Qg6 20.Qg6 hg6=) 18...0–0 (18...Qg4 19.0–0=) 19.0–0 Rde8 (19...Rfe8 20.cd5 Bd5 21.Rfd1=) 20.Rfe1 (20.Rfd1 Ng4+=) 20...dc4 (better is 20...Ne4=) 21.Nd2 (21.Qc4 Ng4 22.h3 Ne5 23.Ne5 Qe5=) 21...Qg5 (21...Ng4 22.h3 Ne3 23.fe3 Qh6 24.Nc4 Bd5+–) 22.Bf3 Bf3 23.Nf3 Qg4 24.h3 Qh5 25.Qe2 (25.Qc4 Re4 26.Qc2 Rd8=) 25...c3 26.Rc3 Re4 27.Rc4 Qd5 28.Rec1 Rd8 29.Re4 Ne4 30.Kf1 Qb3 31.Qc2 Qc2 32.Rc2 Rd3 33.Ne5 Ra3 34.Nc4 Ra4 35.Nb6 Rb4 36.f3 Rb1 37.Ke2 Ng3 38.Kd3 Rb5 39.Na4 Nf5 40.Nc5= Nh4 41.Na6 f6 42.Nc7 Rg5 43.Ra2 Rg2 44.Ra5 Nf3 45.Ne6 Rd2 46.Ke4 Ne5 47.Ra7+= Nd7 48.Kf4 Rd6 49.h4 h5 50.Kf5 Rd5 51.Kf4 Kf7 (51...Kf7 52.e4 Rd1+=). Murray,D – Gillies,A, Glasgow op, 1995.

8.b5 a6 9.Nc3 =.

8.b5 cd4 9.Bd4 Bd6 =.

8.bc5 bc5 9.Nc3 cd4 10.ed4 (10.Qd4 Bc5 11.Qd2 dc4 12.Bc4 0–0=) 10...dc4 11.Bc4 Rc8 (11...Rb8 12.Ra2–/+) 12.Bb5 (12.Be2 Qa5 13.Qd2 Bd6=+) 12...a6–/+ 13.Ba4 (13.Be2 Bd6=+) 13...Be7 (13...Qa5 14.Qd3–/+) 14.Ne5 0–0 (< 14...Bg2 15.Rg1 Bb7 16.Rg7+=) 15.0–0 Ne5 (15...Nb6 16.Bb3=+) 16.de5= Qd1 (16...Nd5 17.Nd5 Bd5 18.Qd3=+) 17.Rfd1 (17.Rad1 Nd5 18.Nd5 ed5=) 17...Nd5 18.Nd5 Bd5 19.Rdc1 (19.Rd3 Rc7=) 19...Rc1=+ 20.Rc1 (20.Bc1!? Bc5 21.Rb1=+) 20...Rb8–/+ 21.h3?? (better is 21.Rc2 Be4 22.Re2 Ba3 23.Re4 Rb2 24.Kf1–/+) 21…Rb2–+ (22.Rc8 Bf8–+) 0–1. Molenda,E – Choyke,J, Detroit East op, 1983.

8.bc5 bc5 9.Nbd2 Qa5 =.

8.bc5 bc5 9.Bd3 dc4 10.Bc4 Rb8 =.

8.dc5 bc5 9.b5 Ne4 10.Nbd2 (10.Nfd2 Nd6=) 10...Qa5 11.Bd3 (11.Rc1 Nb6=) 11...dc4+= 12.Bc4 Nb6 13.Qc2 (13.Bf1 c4–/+) 13...Nc4 14.Qc4 Rd8 15.Qc2 Nd2 (15...Qb5?! 16.Ne4 Be4 17.Qe4 Qa5 18.Ke2 Qb5 19.Ke1 Qb2 20.Qc6 Rd7 21.Qc8 Ke7 22.Qc5 Kd8 23.Qe5+=) 16.Nd2 Bg2 (16...Qb5 17.Rd1–/+) 17.Rg1 Bb7 18.a4 a6 (18...f6 19.f3–/+) 19.Bc3 Qc7 20.f4 (20.Rg7 Bg7 21.Bg7 Rg8 22.Qh7 Ke7–/+) 20...f6 (20...Qe7 21.Rg4–/+) 21.Nc4 Qd7 (21...Qf7 22.Ba5 Ra8 23.ba6 Ba6 24.Bb6–/+) 22.Rd1 (22.Ba5 Qd3 23.Qd3 Rd3+=) 22...Qc7 (22...Qd1 23.Qd1 Rd1 24.Kd1 ab5 25.ab5–/+) 23.Kf2 (23.b6 Rd1 24.Qd1 Qc6+=) 23...Rd1–/+ 24.Qd1 ab5 (24...Bd5 25.Qh5 Ke7 26.Qe2–/+) 25.ab5 Bd5 26.Ba5 (26.Qa4 Kf7–/+) 26...Qa7 27.Qa4 (27.b6 Qd7 28.Qb3 Qb7–/+) 27...Kf7 28.Ra1 (28.Nb6 Be7 29.Rd1 Rb8 30.Nd5 ed5 31.Rd5 Kf8–+) 28...Be7–+ 29.Nb6 f5 30.Nd5 ed5 31.b6 Qb7 32.Qb5 Ra8 33.Bc3 Rb8 34.Ra6 d4 35.ed4 Bh4 36.Kg1 White threatens to counter with Ra7 36...Qf3 37.Qf1?? Qc3–+ 38.Ra7 Kf8 39.b7 Qd4 40.Kh1 Qe4 (40...Qe4 41.Qg2 Qb1 42.Qg1 Qb6–+) 0–1. Koerner,S – Dasler,H, corr DDR–ch H217, 1976.

8.dc5 bc5 9.bc5 Bc5 =.

6.c4 Be7

7.Qc2 Nbd7 8.Be2 0–0 9.d3 c5 10.b5 Qc7 11.Nbd2 Bd6 12.h3 e5 13.cd5 Nd5 14.Rg1 a6 15.ba6 Ba6 16.Qb3 N7f6 17.g4 Ne7 18.g5 Nd7 19.h4 Bb7 20.e4 Ng6 21.h5 Nf4 22.g6 hg6 (better is 22...h6!?+=) 23.hg6+= Be7 24.gf7 Rf7 25.Nc4 The pressure on the isolated pawn grows. Exerts pressure on the backward pawn 25...Bf6 26.Ng5 Bg5 27.Rg5 Kf8 28.Bg4 Rd8 29.0–0–0 (29.Be5? Nd3 30.Qd3 Ne5–+) 29...Ba6 30.Ne5 (30.Rd2!?+/–) 30...Ne5= 31.Be5 Qe7? The pressure on the backward pawn d3 grows (better is 31...Nd3!? 32.Qd3 Rd3 (worse is 32...Bd3 33.Bc7 Rc7 34.Rd5 Rd5 35.ed5+/–) 33.Bc7 Rc7=) 32.Bf4+/– Rf4 33.Rh5 Qf6 34.e5 Qg6 35.Rh8 Ke7 36.Rd8 Kd8 37.Qd5 Kc7 38.Qd7 Kb8 39.Rh1 Rf8 40.e6 Qd3 41.Qd3 Bd3 42.Rh5 Kc7 43.Rd5 Bb5 44.Rg5 Rf2 45.Rg7 Kd6 46.Rb7 Kc6 47.Rf7 Ra2 48.Bf3 Kd6 49.Rb7 Ra3 50.Rb6 Ke7 ˝–˝. Alonso,F (2060) – Romero,Paul, Far West Open, Reno USA, 2008.

7.Nc3 0–0 8.d4 c5 9.bc5 bc5 10.dc5 Bc5 (10...dc4 11.Qd8 Rd8 12.Bc4 Bc5 13.Na4+=) 11.cd5= Nd5 12.Be2 Qa5 13.Qc2 Nd7 14.0–0 Rac8 15.Qd3 (15.Nd5 Bd5 16.Bc3 Be3 (16...Ba3? is no good because of 17.Ba5 Rc2 18.Bd3+–) 17.Qh7 Kh7 18.Ba5 Bh6=) 15...Rfd8 16.Nd5 Bd5 17.Bc3 White threatens to win material: Bc3xa5 (17.Ng5 f5 18.Rac1 Qb6+=) 17...Qa4 18.Rfb1 (18.Rfc1 Nf6=) 18...Be4 Black threatens to win material: Be4xd3 19.Qd1? (19.Qa6!? must definitely be considered 19...Qa6 20.Ba6 Bb1 21.Bc8 Rc8 22.Rb1 Ba3 23.Be1+=) 19...Bc2–/+ 20.Qd2 (better is 20.Qe1!? Bb1 21.Rb1 Qa3 22.Ba5–+) 20...Bb1 21.Rb1 Nf6 22.Qe1 Rb8 (22...Qa3 23.Ra1 Qb3 24.Ba6–+) 23.Rb8 (better is 23.Rc1!? Qa3 24.Ra1–/+) 23...Rb8–+ 24.Be5 Rd8 25.Qa1 (25.Qb1 Ba3 26.h3 Rc8–+) 25...Be7 (25...Qa3!? and Black can already relax 26.Qb1 Bd6 27.Bf6 gf6 28.g3–+) 26.Nd4 Nd5 27.Bg7 Qa3 28.Qa3 Ba3 29.Be5 Rc8 30.Nb5? Rc1 31.Bf1 Bc5 32.Nd4 Bd4 33.Bd4 a5 34.g3 a4 35.Kg2 a3 36.Bd3 a2 (36...a2 37.Bb2 Rd1–+) 0–1. Luzgin,Konstantin (2120) – Gejko,Vladimir (2200), Korolev–ch, 2002.

7.Nc3 0–0 8.cd5 Nd5 9.Qc2 =.

7.Nc3 Ba6 8.Qa4 c6 +=.

7.Nc3 Ba6 8.b5 Bb7= 9.d4 (9.cd5 ed5 10.Bd3 a6=) 9...0–0 (9...a6 10.cd5 Nd5 11.Nd5 Bd5 12.ba6=) 10.Rc1 (10.cd5 Nd5 11.Bd3 a6=) 10...a6 11.a4 (11.cd5 Nd5 12.Nd5 Bd5 13.ba6 Na6=) 11...ab5 12.cb5 c6 (12...c5 13.dc5 bc5 14.Bd3=) 13.Bd3 c5 14.dc5 (14.Bc2 c4=) 14...Bc5 (14...bc5 15.0–0=) 15.0–0 (15.Ne2 Nbd7=) 15...Nbd7 16.Ne2 (16.Qc2 e5 17.Ng5 e4=+) 16...Re8 (16...Bd6=) 17.Ned4 (17.Bc2!?=) 17...e5–/+ 18.Nc6 Qc7 19.Be2 Bc6 20.bc6 Qc6 21.Bb5 Qc7 (21...Qd6 22.Qb3=+) 22.Bd7 (22.Qb3 Qd6=+) 22...Qd7 (22...Nd7 23.Qd5 Ra4 24.Rc2=+) 23.Be5= Ng4 (23...Ne4 24.Ra1=+) 24.Bd4 ˝–˝. Kraemer,M – Terc, Karlovy Vary, 1975.

7.Bd3 h6 8.h4 (8.0–0 0–0=) 8...Nbd7 (8...0–0 9.Nc3+=) 9.Nc3 (9.cd5 ed5 10.0–0 0–0=) 9...c5 (9...dc4 10.Bc4 0–0 11.d4=) 10.b5 (10.cd5 ed5 11.bc5 bc5=) 10...e5 (better is 10...d4 11.Ne2 e5–/+) 11.Bf5? (11.cd5!? Nd5 12.Nd5 Bd5 13.e4=) 11...d4 (11...e4 12.Nd5 ef3 13.Qf3 Nd5 14.cd5–+) 12.Nd5 (12.ed4 cd4 13.Na2 e4 14.Nd4 Ne5+=) 12...Bd6 (12...Nd5 13.cd5 Bd5 14.e4–/+) 13.e4 (13.Nf6 Qf6 14.Qc2 0–0–0+=) 13...g6 (13...Bd5 14.ed5 e4 15.Qe2–+) 14.Bd7 Nd7 (14...Kd7 15.Qe2+=) 15.d3 (15.h5 Bd5 16.cd5 a6=) 15...Be7 (15...Bd5 16.ed5 Qe7 17.Qe2=) 16.Ne7 (16.h5 g5=) 16...Qe7= 17.Ke2 (better is 17.h5!?=) 17...f5–/+ 18.Qc2 (18.Nd2 Nf6–/+) 18...fe4 19.de4 Nf6 (better is 19...Qe6 20.Rhe1 Qg4–/+) 20.Rae1? (better is 20.Nd2!?–/+) 20...Be4–+ (20...Ne4 21.Rh3 Qf6 22.Qd3–+) 21.Qd2 (21.Qb3 0–0–0–+) 21...0–0–0 22.Kd1 Bf3 23.gf3 Rde8 24.Qd3 Qf7 25.Rhg1 Rhg8 26.Bc1 h5 27.Bg5 Nd7 28.Qe4 Kb8–+ 29.Qc6 Qe6 30.Qe6 Re6 31.Re4 Kc7 32.Rge1 Ra8 33.f4 a6 34.fe5 ab5–+ 35.cb5 Ra3 36.Bc1 Rb3 37.f4 Rb5 38.Kc2 Kc6 39.Bd2 Kd5 40.R1e2 c4 41.Re1 Nc5 42.Rd4 Kd4 43.Be3 Kd5 44.Rd1 Nd3 45.Bd2 Rb2 46.Kc3 b5 (46...b5 47.f5 b4#) 0–1. Van der Linden,Arie – Stefkovic,Martin (2095), Kleve op, 2001.

7.d4 dc4 8.Bc4 0–0 9.Nbd2 c5 10.b5 a6 11.a4 Nbd7 12.0–0 Qc7 13.Qe2 ab5 14.ab5 Nd5 15.Nb3 Rfc8 16.Rfe1 Ra1 17.Ba1 (17.Ra1 cd4 18.Bd5 Bd5 (worse is 18...ed5 19.Nbd4 Bf6 20.Nf5+=) 19.Nbd4 Bf6+=) 17...Ra8 (17...cd4 18.Bd5 Bd5 19.Nbd4+=) 18.Ne5 Bd6 19.Nd7 Qd7 20.dc5 bc5 21.Qb2 Nf6 22.Qe2 Qe7 23.f3 Nd7 24.Bc3 Nb6 25.Na5 Bd5 26.g3 Qd7 27.Bd5 (27.e4 Nc4 28.Nc4 Bc4 29.Qc4 Qb7=) 27...ed5+= 28.Nc6 Qe6 29.Qc2 Re8 30.Ba5 (30.e4 d4 31.Ba5 Nd7=) 30...Nc4 31.e4 Na5 32.Na5 de4 (32...c4 33.Nc6+=) 33.fe4 (33.Re4 Qd7 34.Re8 Qe8+/–) 33...Qe5 34.Nb7 Attacks the isolani on c5 (34.Nc4 Qe7=) 34...Qd4 35.Qf2 Be5 36.Qd4 cd4 37.Kf1 f6 38.Nc5 Rc8 39.Rc1 Kf7 40.Ke2 Bd6 41.Nb3 Rc1? 42.Nc1+/– Ke6 43.Nb3 Be5 44.Kd3 Kd6 45.Nd4 Kc5 46.Ne6 Kb5 47.Ng7 Kc6 48.Nf5 Kc5 49.Ne3 Bb2 50.g4 Be5 51.h4 Kd6 52.Nc4 Ke6 53.Ne5 Ke5 54.Ke3 h6 55.Kf3 Kd6 56.Kf4 Ke6 57.h5 Ke7 58.e5 Ke6 59.ef6 Kf6 60.Kf3 Kf7 61.Ke3 Ke7 ˝–˝. Halamus,Agata – Labedzka,Marta (1895), Poland–chT2 U18, 2004.

7.d4 c5 8.cd5 Bd5 9.bc5 bc5 10.Bb5 (10.Nc3!?+=) 10...Bc6= 11.Bc6 Nc6 12.0–0 0–0 13.dc5 Qa5 (13...Rb8 14.Qc2 Qd5 15.Nbd2=) 14.Nbd2+= Qc5 (14...Bc5? 15.Bf6 gf6 16.Rc1+–) 15.Qa4 Rac8 16.Bf6 Bf6 17.Ne4 Qa5 18.Nf6 gf6 19.Qf4 Kg7 20.h3 Ne7 21.Rfd1 Rcd8 (21...Rfd8 22.Qg4 Ng6 23.Nd4=) 22.Rd8 (22.Qg3 Kh8+=) 22...Rd8= 23.Qb4 Qb4 24.ab4 Rd7 25.g3 Nd5 26.b5 Nc3 27.Ra5 Rb7 28.Nd4 Kg6 29.Ra3 Nb5 30.Nb5 Rb5 31.Ra7 Rb2 32.Kg2 Rc2 33.g4 h6 34.h4 Kg7 35.Ra5 Rd2 36.h5 Rd3 37.Kf3 Rd2 38.Ra4 (38.e4 Rd3 39.Ke2 Rd7=) 38...Rc2 39.Kg3 Rc3 (39...Rc5 40.Ra7=) 40.Kf4 Rc2 41.f3 Rg2 42.Ra5 Rg1 43.e4 Rf1 44.Kg3 ˝–˝. Heinzel,Peter (1940) – Seref,Serkan (1765), Dortmund Germany, Sparkassen Open–B, 2016.

7.cd5 ed5 8.Qc2 a5 9.b5 c5 10.bc6 Nc6 11.Bb5 Rc8 12.Nd4.

7.cd5 ed5 8.Be2 0–0 (8...c5 9.Bb5 Nbd7 10.0–0 a6 11.Bd7 Qd7 12.bc5) 9.0–0 (9.d4 Re8 10.0–0 c6 11.Qc2 Nbd7 12.Nc3) 9...Ne4 (9...c5 10.bc5 bc5 11.Qb3= Qd7 12.d3) 10.d3+= Bf6 (10...Nf6 11.Nc3 a5 12.b5) 11.Ra2 (11.Qc2 Bb2 12.Qb2) 11...Bb2 (11...Nd6 12.Qc2) 12.Rb2 Qf6 (12...Nd6!?+=) 13.Rc2+/– (worse is 13.de4 Qb2 14.ed5 Rd8+=) 1–0. Bonetti,Shane – guest1202, ICC, 2002.

7.cd5 Qd5 A) 8.d4 A1) 8...a5 9.Nc3 (9.b5 0–0 10.Nc3 Qd6 11.Bd3 c6 12.Qc2) 9...Qd6 10.b5 0–0 11.Bd3 c6 12.Qc2; A2) 8...Qd6 9.Nbd2 0–0 10.Bd3 a5 11.ba5 ba5 12.Qc2; A3) 8...0–0 9.Nc3 Qd8 10.Bd3 c5 11.bc5 bc5 12.0–0; B) 8.Nc3 B1) 8...Qd7 9.d4 (9.Rc1 0–0 10.d4 Rc8 11.Bd3 c5 12.Bb5) 9...0–0 10.Rc1 Rc8 11.Bd3 c5 12.Bb5; B2) 8...Qd6 9.Rc1 c6 10.e4 Qf4 11.e5 Nfd7 12.d4.

7.cd5 Bd5 8.Nc3 A) 8...0–0 9.Nd5 (9.Be2 a5 10.b5 Bb7 11.0–0 c5 12.Qc2) 9...Nd5 10.d4 c5 11.dc5 bc5 12.bc5; B) 8...Bb7 9.d4 0–0 10.Bd3 c5 11.bc5 bc5 12.0–0.

7.Be2 dc4 8.Bc4 0–0 9.0–0 =.

7.Be2 0–0

8.0–0 dc4 9.Bc4 c5 10.bc5 Bc5 11.Nc3 =.

8.0–0 Nbd7 9.d3 c5 10.b5 dc4 11.dc4 Qc7 12.Nbd2 (12.Qc2 Rfd8=) 12...Rfd8 (12...Bd6 13.Qc2=) 13.Qc2 Bd6 14.h3 a5 (14...a6 15.Rfd1=) 15.a4 (15.Rad1 Ra7=) 15...Nf8 (15...Ne5 16.Rad1=) 16.Bf6 gf6 17.Ne4 Be5 (17...Be7 18.Rad1=) 18.Ne5 Qe5 19.Ng3 (19.Bf3 Rd7 20.Rad1 Rad8+=) 19...Ng6 20.Rfd1 Nh4 (20...f5 21.Rd8 Rd8 22.Rd1+=) 21.Bf1 Qg5 (21...f5 22.Rd8 Rd8 23.Rd1+=) 22.Qe2 (22.Ra3 f5+/–) 22...f5 23.Rd8 (23.Ra3 Be4+=) 23...Rd8 24.Rd1 Rd1 25.Qd1 f4 (better is 25...Qe7!?+=) 26.ef4+/– Qf4?? (better is 26...Qe7+/–) 27.Qd8 (27.Qd8 Kg7 28.Nh5 Kg6 29.Nf4 Kh6 30.Qf6 Ng6 31.g4 e5 32.g5#) 1–0. Schmidbauer,Josef – Bernloher,Ludwig, Niederbayern–chB, 2000.

8.0–0 Nbd7 9.d4 dc4 10.Bc4 c5 11.dc5 bc5 12.b5 a6 13.ba6 Ba6 14.Nbd2 Nb6 15.Qe2 (15.Ba6 Ra6 16.Qc2 Qa8=) 15...Nc4 16.Nc4 Qd5 17.Rfc1 Rfb8 18.Be5 Bc4 (better is 18...Rb3 19.Nfd2 Rb7=) 19.Qc4 (better is 19.Rc4!? Rb3 20.e4=) 19...Qc4–/+ 20.Rc4 Ra3 21.Rac1 Rba8 (21...Rb4 22.Rb4 cb4 23.Kf1–/+) 22.Bf6 gf6 (22...Bf6?! 23.Rc5 h6 24.Kf1=) 23.Kf1 Ra1 24.Ke2 R8a2 25.R1c2 Kf8 26.Nd2 Ke8 27.Nb3 The isolani on c5 becomes a target 27...Rc2 28.Rc2 Ra7 29.Kd3 Rc7 30.Kc4 Kd7 (30...Rb7!?+=) 31.Ra2= Kc6 32.Ra8 f5 33.Na5 (33.Ra5 Rb7 34.Nc5 Bc5 35.Rc5 Kd6=) 33...Kb6 34.Nb3 h5 35.Rb8 Kc6 36.Na5 Kd7 37.Ra8 h4 38.Ra6 Bd6 39.g3 hg3 40.hg3 Ke7 41.Ra8 Kf6+= 42.Ra6 Bf8 43.Ra8 Be7 44.Kd3 Rd7 45.Ke2 Rd8 46.Ra7 Rb8 47.Nc4 Rb3 48.f4 Rc3 49.Ne5 c4 50.Kd2 Rb3 51.Nc4 Bb4 52.Ke2 Rc3 53.Rc7 Kg7 54.Rc6 Rc2 55.Kf1 Rc1 56.Ke2 Be1 57.Kf3 Rc2–/+ 58.g4 Rf2 59.Kg3+= Rf1 60.Kg2= Rf2 (60...Rf2 61.Kg3 Ra2 62.Kh3 fg4 63.Kg4 f5 64.Kf3 Rf2 65.Kg3 Rc2 66.Kf3 Bh4=). Susnjar,Miroslav – Ascic,Anto, Tucepi, 1996. (=1.Nf3 Nf6 2.b4 e6 3.a3 b6 4.e3 Bb7 5.c4 d5 6.Bb2 Be7 7.Be2 0–0)

8.0–0 c5

9.b5 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 dc4 13.Bc4 Nd5 14.Nc3 Bf6 15.Qb3 Nc3 16.Bc3 Bc3 17.dc3 Bf3 18.gf3 Qg5 19.Kh1 Qh4 20.Bd3 Rd8 21.Qc2 Nd7 22.Rg1 (22.Rd1!?+=) 22...Ne5–/+ 23.Be4 f5 24.Bc6 Qc4 25.Ra1 Nc6 26.bc6 Qd5 27.c7 Qf3 28.Kg1 Qg4 29.Kf1 Qc4 30.Ke1 Rc8 31.Ra7 b5 32.Rb7 Kf7 33.Qd2 Qd5 34.Qd5 ed5 35.Rb5 Rc7 36.Kd2 Ke7 ˝–˝. Fournier,Frederic (1860) – Elmilouse (1800), Open vermeulen fevrier, 2004.

9.b5 a6=+ 10.a4 ab5 11.cb5 Ne4 12.Qc2 =.

9.b5 a6=+ 10.a4 Nfd7 11.d3 (11.cd5 ed5 12.Nc3 Re8=) 11...Bf6 12.Nc3 Ne5 (12...dc4 13.dc4 Qe7 14.Qc2=) 13.Rc1 (13.cd5 A) < 13...Bd5 14.Nd5 Nf3 15.Bf3 Bb2 16.Nb6 Ba1 A1) 17.Qa1? Ra7–+ (17...Qb6 18.Ba8 ab5 19.ab5+=); A2) 17.Na8+/–; B) 13...ed5 14.Ne5 Be5=) 13...dc4=+ 14.Ne5 (14.dc4 Qe7=+) 14...Be5 15.dc4 (15.f4 Bc3 16.Rc3 ab5 17.ab5 cd3 18.Rd3=+) 15...Qf6 (15...Qg5 16.Bf3 Rd8 17.Qe2 Bf3 18.Qf3=) 16.Qd2 (16.f4 Qg6 17.Bf3 Bc3 18.Bc3 Be4=) 16...Qh4 (16...Rd8!? 17.Bd3 Qg5=+) 17.f4= Bc7 (17...Rd8 18.Qc2 Bf6 19.Rcd1=) 18.g3 (18.Rcd1 Rd8 19.Qe1 Qe1 20.Rd8 Bd8 21.Re1 f5+=) 18...Qh3 19.Bf3 (19.e4 Rd8 20.Qc2 Nd7=) 19...Rd8 (19...Bf3 20.Rf3 Rd8 21.Qe2=) 20.Qf2 (20.Qg2 Qg2 21.Kg2 Rd2 22.Rf2 Bf3 23.Kf3 Rd8=) 20...Bf3 21.Qf3 Nd7 (21...Ra7 22.Rcd1 Rd1 23.Rd1+=) 22.Rcd1+= Nf6 23.Rd8 Rd8 24.ba6 Bb8? (better is 24...Ng4!? 25.Qe2 Ra8+/–) 25.Rd1+– Rf8 (better is 25...Re8+–) 26.Nb5 Ng4 (26...e5 A) 27.fe5?! Ng4 28.a7 Qh2 29.Kf1 Qb2 30.Qg4 Ba7 (30...Be5? 31.Qf3 g6 32.a8Q Ra8 33.Qa8 Kg7 34.Qf3+–) 31.Na7 Qe5+–; B) 27.a7 Ba7 28.Na7+–) 27.Rd2 h6 (27...e5 28.a7 Ba7 29.Na7 ef4 30.Qf4+–) 28.a7 Ba7 29.Na7 1–0. Popkirov,Stojan – Matt,Tobias, GER–ch U11 Pinneberg, 1996.

9.b5 a6 10.a4 Ne4 11.d3 Ng5 12.Ng5 Bg5 13.Nd2 Bf6 14.Qc2 Nd7 15.f4 Bb2 16.Qb2 f5 17.Bf3 Qh4 (17...Qc7 18.a5=) 18.Qb3 Nf6 19.cd5 Bd5 (worse is 19...ed5 20.a5 ab5 21.ab6 Ra1 22.Ra1+/–) 20.Bd5 ed5 21.Nf3 Qh5 22.ba6 Ra6 23.Qb5 Rfa8 24.Qc6 Qe8 25.Qe8 Ne8 26.Rfb1 Ra4 (26...Nd6!?–/+) 27.Ra4= Ra4 28.Rb6 Ra3 29.Ne5 Ra8 30.Rc6 d4 31.Rc5 de3 32.Rc1 Nf6 33.Kf1 g6 34.Rc2 Ra3 35.Ke2 Nd5 36.Nc4 Ra8 (36...Nf4? 37.Ke3 Nd5 38.Kd4 Rd3 39.Kd3 Nb4 40.Kc3 Nc2 41.Kc2+–) 37.g3 (37.Ne3? Re8 38.g3 Ne3–+) 37...Kg7 38.Rb2?? (38.Kf3 Nb4 39.Re2 Nd3 40.Re3 Nc5=) 38...Re8?? (better is 38...Nc3!? 39.Kf3 e2 40.Re2 Ne2 41.Ke2 Kf6–+) 39.Ne5 (39.Kf3 Kf6=) 39...g5 40.Rb7 Kg8 (40...Kf6!? 41.Nd7 Kg6 42.Ne5 Kf6 43.Nd7 Kg6 44.Ne5 Kf6=) 41.Rd7+= Nf6 42.Rd6 Ng4 (42...gf4!? 43.gf4 Kg7+=) 43.Ng4+– fg4 44.fg5 Re5 45.Rd4 (45.g6!? h6 46.d4+/–) 45...Rg5+/– 46.Ke3 h5 (46...Kf7+/–) 47.Kf4 (47.Ke4 Rg6 48.Rd5+–) 47...Rb5= 48.Rd6 Rb2 49.d4 Rh2 50.d5 Rf2 51.Kg5 Rf3 52.Kh4 Kg7 53.Re6 Rd3 54.Re5 Kf7 55.Rh5 Ke7?? (better is 55...Kg6=) 56.Kg4+– Kd6 (56...Kf6 57.Rf5 Kg6 58.Rg5 Kf6 59.Kh5+–) 57.Kh4 Rd4 (57...Ke7 58.Rf5+–) 58.g4 Rd5 (58...Rf4+–) 59.Rd5 Kd5 60.Kh5 Ke6 61.Kh6 Kf7 62.g5 Kg8 63.Kg6 1–0. Macedo,A Soares De (2000) – Cabral Mesquita,Jussier, SEMIFINAL DO CAMPEONATO POTIGU, 2009.

9.b5 a6=+ 10.ba6 Na6 (< 10...Ra6 11.cd5 Ra8 12.de6+=) 11.d3 dc4 12.dc4 Qc7 =.

9.b5 dc4 10.Bc4 Nbd7 (10...a6 11.Nc3=) 11.d3 (11.Qe2 Bd6=) 11...Qc7 (11...a6 12.Nc3=) 12.e4 (12.Nbd2 a6=) 12...Bd6 (12...a6 13.Nc3=) 13.h3 (13.Qe2 Ne5 14.Nbd2 Rfd8=) 13...Ne5 (13...Rfd8 14.Nc3+=) 14.Ne5 (14.Nbd2 a6+=) 14...Be5 15.Qc2 Rfd8 16.Nc3 Rd7 (16...Qd6 17.a4+=) 17.Ne2 (17.a4 a6=) 17...Ne8 (17...Bb2 18.Qb2 a6 19.Rab1+=) 18.Be5= Qe5 19.f4 Qc7 20.f5 ef5 21.Rf5 Nd6 22.Rf3 Nc4 23.Qc4 Rf8 (23...a6 24.Nc3+=) 24.Qc3 (24.Ng3 Bc8=) 24...Re7 (24...Re8 25.Ng3=) 25.Raf1 Qe5 (25...c4 26.Nd4 cd3 27.Rd3 Qc3 28.Rc3 Be4 29.Nc6+=) 26.Qb3 Bc8 27.Nf4 Be6 28.Qc2 c4 29.Ne6 Qe6 30.dc4 Qe4 31.Qc3 Qe5 32.a4 Qc3 33.Rc3 Rc8 34.Rd1 f6 35.Kf2 Rc5 36.Kf3 Rec7 Attacks the backward pawn on c4 37.Rd4 Kf7 38.g4 h5 39.Rf4 hg4 40.hg4 Ke6 41.Re3 Re5 42.Rd4 f5 43.g5 g6 44.Rd8?? Rd7?? 45.Rg8 Kf7 46.Rh8 Kg7 47.Rc8 Re4 48.a5 Rh4 49.Kg3 Rg4= 50.Kf3 Rg5 51.ab6 ab6 52.Rc6 Rb7 53.Rd3 Rg4 54.Rdd6 Attacking the isolated pawn on b6 54...Kh6 55.Re6 Rg7 56.Rc8 Rb7 57.Rcc6 ˝–˝. Semenko – Kadesreuther, Bayer.Sen–EinzelM, 1992.

9.bc5 dc4 10.cb6 Qb6 =.

9.bc5 Bc5 10.d4 Bd6 =.

6.d4 Bd6

7.c4 dc4 8.Bc4 Nbd7 (8...0–0 9.0–0=) 9.Nc3 (9.0–0 0–0=) 9...0–0 10.d5 (10.0–0 a5 11.b5 Rc8=) 10...ed5 (10...Qe7 11.0–0=) 11.Nd5 Ng4 (11...a5 12.b5=) 12.0–0 Nde5 (12...c6 13.Nf4 Qe7 14.Qb3=) 13.Ne5 Ne5 14.Qd4 c6 15.f4 cd5 16.fe5 Bb4 17.e6 (17.ab4 dc4 18.Qc4 Qd2+=) 17...f6 18.Bd3 Bd6 (18...Bc5 19.Qh4 f5 20.Qg3+=) 19.Qh4= Do you see the mate threat? 19...f5 20.Qh3 (20.Qd8 A) worse is 20...Rfd8 21.Rf5 (21.Bf5?! Re8=) 21...Re8 22.Rf7+–; B) 20...Rad8 21.Bf5 Bc8+=) 20...Qg5 (better is 20...g6!?–/+) 21.Bf5= Do you see the mate threat?. 21...h6 22.Bd3 Rad8 (22...Bc5 23.Bd4=) 23.Rf7 Rf7 24.ef7 Kf8 25.Rf1 Bc5 Attacking the backward pawn on e3 26.Bd4 Bc8 27.Qf3 Bd4 28.ed4 Rd7 29.Bb5 Re7 30.Kh1 Be6 31.Be8 Qf5 32.Qe2 Qe4 33.Qf2 Qg6 34.Qh4 Threatening mate... how? 34...Qg5 35.Qg5 hg5 36.Kg1 g4 37.Rf4 g3 38.hg3 Bf7 39.Bc6 Kg8 40.Rf5 g6 41.Rf6 Kg7 42.Rd6 Re6 43.Re6 Be6 44.Kf2 Kf6 45.Ke3 g5 46.Bb5 a5 47.Be2 Bd7 48.Bd3 Ke6 49.Kd2+= Kd6 50.Kc3 Kc6 51.Bc2 Bg4 52.Bd3 b5 (52...Kd7 53.Kb3+=) ˝–˝. Woschkat,Karl_Heinz (1920) – Droessler,Uwe (2060), DESC, 2000.

7.c4 dc4 8.Bc4 h6 9.Nbd2 Nbd7 10.Rc1 (10.0–0 a6+=) 10...Qe7 (10...0–0 11.0–0=) 11.Bb5 (11.Bd3 a5+=) 11...a6 (11...0–0 12.Bd3=) 12.Bc6 Bc6 13.Rc6 0–0 (13...a5 14.ba5 Ra5 15.Nc4=) 14.Qc2 (14.e4 Nb8 15.Rc1 Bf4=) 14...Rfd8 (14...a5 15.b5=) 15.0–0 (15.e4 Nb8 16.Rc3 Bf4+=) 15...b5 (15...Nb8 16.Rc3 Nd5 17.Rb3=) 16.e4+= Bf4 17.Re1 Bd2 (17...Nb8 18.Rc3+=) 18.Qd2 e5 (18...Nb6 19.Ne5+/–) 19.d5 (19.Rc7 Ne8 20.Rc2 ed4 21.Nd4 Ne5+/–) 19...Ne8+/– 20.Qc3 f6 21.Rc7?? (better is 21.Re6 Qf7 22.Bc1+/–) 21...Nc7=+ 22.Qc7 Rdc8 23.Qa5 Rc2 24.Bc1 Qd8 25.Qd8 Rd8 26.Nh4 (26.h4 Rdc8 27.Bd2 Ra2–/+) 26...Rdc8 27.Be3 Ra2 0–1. mgriffin – dbryant (1850), net–chess.com, 2001.

7.Nbd2 0–0 8.Bd3 Nc6 (8...a5 9.b5=) 9.0–0 (9.c4 dc4 10.Nc4 a5+=) 9...Ne7 (9...a5 10.b5 Na7 11.a4=) 10.c4+= dc4 11.Nc4 Ned5? (11...Be4 12.Be4 Ne4 13.Qd3+=) 12.Nd6 (12.e4 Nb4 13.ab4 Be4 14.Be4 Ne4+–) 12...Qd6? (12...cd6 13.Rc1+=) 13.Ne5 (better is 13.e4!?+–) 13...Nd7 (13...a5 14.ba5 ba5 15.Nc4+=) 14.Nd7 (14.Nc4 Qe7+/–) 14...Qd7+= 15.Qc2 (15.Qh5 f5+=) 15...h6 (15...f5 16.Rac1+=) 16.Rae1 Qe7 17.Be4 Nb4? 18.ab4+– (18...Be4 19.Qe4 Qb4 20.Rb1+–) 1–0. carrafurca (2115) – tbrannon (1895), net–chess.com, 2005.

(38.Qa7 Ke8 39.Qg7+–) 1–0. Fournier,Frederic (1730) – yakka, Active, 2008.

7.Nbd2 Nbd7 8.c4 c5 9.dc5 bc5 10.b5 0–0 11.Be2 a6 12.a4 Qc7 13.h3 ab5 14.ab5 Ra1 15.Ba1 dc4 16.Nc4 Be7 17.0–0 Rd8 18.Qc1 Qb8 19.Qb2 Qa8 20.Rc1 Rb8 21.Ne1 Bc6 22.Ne5 Ne5 (better is 22...Bb5!? 23.Nd7 Bd7–/+) 23.Qe5= Bb5 24.Rb1 Ne8 25.Rb5 (better is 25.Bb5!? Bf6 26.Qf4 Rb5 27.Rb5 Qa1 28.Rb8+=) 25...Rb5+= 26.Bb5 Bf6 27.Qc5 Qa1 28.Qc8?? (better is 28.Qb4+=) 28...Qe1–+ 29.Kh2 Be5?? (better is 29...g5 30.Qe8 Kg7–+) 30.f4–/+ Bd6 31.Be8 Qb4 (better is 31...Qe3!? 32.Bc6 Bf8–/+) 32.Bd7 Bf8 33.Qc1 ˝–˝. Bartle,Georg (1785) – Westphal,Gerd (1785), Emmendingen GER, Badischer Ch–B, 2012.

7.Nbd2 Ne4 8.Ne4 de4 9.Nd2 Qg5 10.c4 Be7 11.g3 (11.Qc2 Qg6+=) 11...f5 12.h4 Qf6 13.Qc2 Qf7 14.Bg2 Nd7 15.0–0 g5 16.hg5 Bg5 17.d5 ed5?? (better is 17...Rf8=) 18.Bh8+– 0–0–0 19.Bd4 h5 (19...Bf6 20.Rfc1 dc4 21.Nc4+–) 20.Rac1 h4 21.cd5 Nf6 22.Bf6 Bf6 23.Bh3 hg3 24.Bf5 Kb8 25.fg3 Rg8 26.g4 Bd5 27.Ne4 Be5 28.Nc3 Bb7 29.e4 Qf6 30.Nd5 Qh4 31.Nf4?? Rg4?? 32.Bg4+– Qg4 33.Qg2 Bd4 34.Kh1 Qh4?? 35.Nh3 Be4 36.Rf8 Kb7 37.Rf3 Qh6 38.Rcf1 a6 39.Qg4 Qh7 40.Kg2 b5 41.Ng5 Qg6 42.Qe4 Qe4 43.Ne4 1–0. Fournier,Frederic – Semso, Partie amicale, 2008.

7.h3 Nbd7 8.Bd3 0–0 9.Nbd2 c5 10.dc5 bc5 11.bc5 Nc5 12.0–0 Nd3 13.Bf6? (better is 13.cd3!? Ba6 14.Nb3+=) 13...Qf6 (13...gf6?! 14.cd3 Qd7 15.e4+=) 14.cd3 Rfc8 (14...Ba6!? 15.e4 Bd3 16.Re1 de4 17.Ne4 Be4 18.Re4–+) 15.d4 Rc7 16.a4 Rac8 17.a5 a6 (17...Ba6 18.Re1–+) 18.Qb3 Bc6 (18...Qe7 19.Rab1–/+) 19.Rfb1? (better is 19.Qb6=) 19...Bb5–+ 20.Qa2 (20.Qd1!?–+) 20...Rc2 21.Rb2 Rc1 22.Rc1?? (22.Ne1–+) 22...Rc1 0–1. lincolnxavi (2045) – vhilts (2130), net–chess.com, 2015.

6.d4 Nbd7

7.c4 a5 8.b5 =.

7.c4 dc4 8.Bc4 Bd6 9.Nbd2 0–0 10.0–0 Ne4 11.Qc2 Ndf6 12.Ne4 Be4 13.Bd3 Bf3 14.gf3 g6 15.e4 Nh5 16.e5 Qg5 (better is 16...Nf4 17.Rfd1 Qg5 18.Kf1 Qg2 (18...Nd3?! 19.Rd3 Be7 20.Qc7=) 19.Ke1 Be7+=) 17.Kh1+/– Be7 18.Rg1 Qf4 19.Be4 (19.Qc7 Qf3 20.Rg2 Qd3 21.Qe7 Qb3–+) 19...f5? (19...Rac8 20.Rg4 Qh6 21.Bb7+/–) 20.ef6?? (better is 20.Bc1 Qh4 21.Ba8 Ra8 22.Qc6+– (22.Qc7?! Qf2 23.Qc6 Rd8+–)) 20...Rf6?? (better is 20...Nf6 21.Bc1 Qd6 22.Bg6 Kh8+/–) 21.Ba8+– 1–0. Fournier,Frederic – Stereomuffin, Active, 2008.

7.c4 dc4 8.Bc4 Be7 9.Nbd2 0–0 10.Qc2 Rc8 (10...c6 11.0–0=) 11.0–0+= c5 12.dc5 bc5 13.b5 Qc7 14.Rae1 (14.Rfd1 Rfd8+=) 14...Ng4 15.h3 Nge5 16.e4 (16.Be2 Nf3 17.Nf3 Rfd8+=) 16...Rfd8 17.Ne5 (17.Re3 Bf6+=) 17...Ne5= 18.f4? (better is 18.Re2=) 18...Rd2!–+ 19.Qd2?? (better is 19.Qc3 Qd7 20.fe5 (20.Qe5?? Bf6–+) 20...Qd4 21.Qd4 cd4 22.Bc1–+) 19...Nc4 20.Qc3 Nb2 21.Qb2 c4 22.a4 c3 23.Qc2 Qc4 24.Rf3 (24.Kh2 Rd8 25.Rf3 Bb4–+) 24...f5! 25.ef5 (25.Rc1 Bc5 26.Kh1–+) 25...Bf3 26.Re6 (26.gf3 Qf4 27.Kg2–+) 26...Bc5 27.Kh2 Qf4 28.Kh1 (28.g3 Qd2 29.Qd2 cd2 30.Re5 d1Q 31.Re8 Re8 32.b6 Re2#) 28…Qd2 0–1. Foris,Karoly (1830) – Arsic,Djordje (2055), Senta SER, 2014.

7.c4 c5 8.bc5 bc5 9.Nc3 cd4 10.ed4 dc4 11.Bc4 Be7 12.d5 ed5 (12...Nd5 A) 13.Nd5 ed5 14.Bd3 Qa5 15.Qd2 Qd2 16.Kd2 Nc5 17.Rab1 Nd3 18.Kd3 f6–/+; B) 13.Rb1 Qa5 (13...N5f6 14.0–0 Rc8 15.Nd2 0–0 16.Qe2 Qc7 17.Rfc1 Bd6 18.h3 Qc6–/+; 13...N5b6 14.Bb5 a6 15.Be2 0–0 16.0–0 Rc8 17.Qb3 Nc5 18.Qc2 Ne4–/+) 14.0–0 Nc3 15.Bc3 Qc3 16.Rb7 Nc5 17.Rb4 a5 18.Bb5 Kf8–/+; C) 13.Bd5 ed5 14.0–0 Nf6 15.Re1 0–0 16.Nb5 Ne4 17.Rb1 Re8 18.Be5 Bc5–/+; 12...Rc8 13.de6 (13.Bd3 Nd5 14.Nd5 Bd5 15.Bg7 Rg8 16.Bh6 Rg2 17.Kf1 Rg8 18.Rg1 Rg1–+) 13...Rc4 14.ed7 Qd7 15.Qd7 Nd7 16.Ke2 Kd8 17.Nd1 Bc5 18.Ne3 Be3–/+) 13.Bd5 (13.Be2 0–0 (13...Qa5 14.0–0 Rc8 15.Nb5 0–0 16.Rb1 Bc5 17.Nfd4 Rfe8 18.Nb3 Qb6+=; 13...Rc8 14.0–0 0–0 15.Nb5 a6 16.Nbd4 Nb6 17.Qb3 Re8 18.Rfe1 Ne4–/+) 14.0–0 Re8 15.Re1 Rc8 16.Nb5 a6 17.Nbd4 Ne4 18.Rb1 Bf6–/+) 13...Nd5 14.Nd5 Qa5 15.Nc3 Bf6 (15...Rb8 16.Ra2 Ba6 17.Ba1 0–0 18.Nd4 Ba3–+) 16.Qe2 (16.0–0 0–0 17.Qd7 Bf3 18.Qd3 Bc6+=) 16...Kf8 (16...Kd8 17.Qd2 Re8 18.Kf1 Bf3–/+) 17.0–0? (better is 17.Qd2–/+ Nc5 18.0–0 Nb3–/+) 17...Bc3–+ 18.Bc3 Qc3 19.Rfe1 Qf6 20.Qb5 Bf3 21.Qd7 Bc6 22.Qc7 g6 23.Rac1 Re8 24.Re8 Be8 25.Re1 (25.Qa7 Kg7–+) 25...Kg7 26.Qa7 Bc6 27.Qc5 Re8 28.Rc1 Qe5 29.Qb4? Rb8 (29...Rb8 30.Qe1 Qe1 31.Re1 Rb2–+) 0–1. Goelz,Sebastian – Wuest,Hans_Heiner (2120), St. Leon–Rot GER, Open, 2011.

7.c4 Be7 8.cd5 Nd5 9.Nc3 N7f6 10.Rc1 0–0 11.Be2 a5 12.b5 Nc3 13.Rc3 Nd5 14.Rc1 Rc8 15.0–0 c6 16.bc6 Rc6 17.Ne5 Rc1 18.Qc1 Qc8 (18...Bd6 19.Qb1=) 19.Qc8 Rc8 20.Rc1 Rc1 21.Bc1 f6 (21...Nc3 22.Bd3+=) 22.Nf3 Kf7 23.Kf1 Ke8 (23...Nc3!?+=) 24.Bd3 g6 25.Ke1 Kd7 26.Kd2 Bc6 27.Kc2 Kc7?? (better is 27...Bd6=) 28.e4+– Nb4 29.ab4 Bb4 30.Kb3 b5 31.Bd2 Bd2 32.Nd2 Kb6 33.f3 f5 34.Nb1 h6 35.Nc3 f4 36.d5 Bd7? (36...ed5 37.Nd5 Bd5 38.ed5+–) 37.Nb5! Bb5 38.Bb5 Kb5 39.de6 Kc6 40.Ka4 Kd6 41.Ka5 Ke6 42.Kb5 Ke5 43.Kc5 g5 44.h3 h5 45.Kc4 g4 46.h4 (46.fg4?! hg4 47.hg4 Ke4=; 46.hg4 hg4 47.Kc5 gf3 48.gf3 Ke6+–) 46...gf3 (46...Kd6+–) 47.gf3 Kf6 48.Kd5 Ke7 49.Ke5 Kf7 50.Kf4 Kf6 51.e5 Ke6 52.Ke4 Kf7 53.f4 Ke6 54.f5 Kf7 55.Kf4 Kg7 56.Kg5 White intends f6 56...Kf7 57.e6 Ke7 58.Kg6 Kf8 If Black now would get Kg5 in, he might survive 59.f6 Ke8 60.Kg7 (better is 60.Kh5 Kf8+–) 60...Kd8 61.f7 1–0. Iglesias Dominguez,Jacinto (1905) – Navarro Molina,David, Las Palmas op, 2005. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.a3 b6 5.e3 Bb7 6.d4 Nbd7)

7.Nbd2 c5 8.dc5 bc5 9.bc5 Bc5 10.Bd3 =.

7.Nbd2 Rc8 8.Be2 Bd6 9.c4 c6 10.c5 bc5 11.dc5 Bb8 12.0–0 Qe7 13.Qc2 e5 14.e4 0–0 15.Bd3 h6 16.h3 Nh5 17.ed5 cd5 18.Bf5 Nhf6 (better is 18...e4!?=) 19.Rfe1+/– Rc6 (19...e4+/–) 20.Re2 (better is 20.Nb3!? e4 21.Na5+/–) 20...g6 21.Bg6 (better is 21.Bd7!? Nd7 22.Nb3+/–) 21...fg6= 22.Qg6 Qg7 23.Qg7 Kg7 24.Ne5 (24.Be5? Ne5 25.Re5 Be5 26.Ne5 Re6–+) 24...Ne5 25.Be5 Be5 26.Re5 Rf7 27.f3 Rd7 (27...Bc8 28.Nb3+=) 28.Nb3+/– d4 29.b5 Rcc7 30.c6 Bc6 31.bc6 Rc6 32.Nc5 Rdd6 33.Rd1 Kf7 34.a4 (34.g4 a6+/–) 34...Rb6 (34...Nd7 35.Nd3+=) 35.Rd3 Rb1 36.Kf2 Rb2 37.Kg3 Rd8 38.Nb3 Attacking the isolated pawn on d4 38...Rg8 39.Kh4 Rgg2 40.Nd4 Rb4 41.Ra5 Kg6 (41...Rg5!? 42.Rg5 hg5 43.Kg5 Ra4+/–) 42.f4+/– (42.Ra7?! Nd5=) 42...Rb7 43.Rg3 Rg3 44.Kg3 Ne4 45.Kf3 Nd2 46.Ke2 Nc4 47.Ra6 Kh7 48.Kd3 Nb6 49.Nc6 Nc8 (49...Rc7 50.Ne5+– (50.Na7?! Nd7 51.Ke2 Nc5+=)) 50.Ke4+– Rf7 (50...Kg7 51.f5+–) 51.Ke5 Kg7 52.f5 Rf6 (52...Rd7 53.a5 Kf7 54.Nd4+–) 53.Nb4 (better is 53.a5 Nd6 54.Ra7 Nf7 55.Kd5 Rf5 56.Ke4 Rc5+–) 53...Rb6? (better is 53...Ra6 54.Na6 Kf7+–) 54.Rb6 Nb6 55.Nc6 (55.a5 Nc4 56.Ke6 Na5 57.Ke7+–) 55...Na4+/– 56.Na7 (better is 56.Ke6!? Nc5 57.Ke7+–) 56...Nc5+= 57.Nc6 h5? (57...Nd3!? 58.Kd4 Nf4=) 58.Nd4 (58.Nd8!? Nd3 59.Ke6 Nf4 60.Ke7 Nd5 (60...Nh3?? 61.f6 Kh6 62.f7+–) 61.Kd6 Nf6+–) 58...Kf7+/– 59.Nf3 (59.Ne6!? Nd3 60.Kd4+/–) 59...Nd3+= 60.Kd4 Nf4 (60...Nb2+/–) 61.h4 (better is 61.Ng1 Kf6 62.Ke4+–) 61...Kf6= 62.Ke4 Ng2 ˝–˝. Mikhailenko,Galina – Molotkov,Valentin, 6th Khanty–Mansiysk Russia, Open, 2010.

7.Nbd2 Bd6 8.c4 dc4 9.Nc4 Be7 10.Bd3 0–0 11.0–0 Ne4 12.Qc2 f5 13.Nce5 Ne5 14.Ne5 Bd6 15.f3 Nf6 16.Nc6 Qe8 17.b5 Nd5 18.Bc1 a6 19.g3 Bc6 20.bc6 Ne7 21.e4 Qc6 22.e5 Be5 23.de5 Rfd8 24.Qc6 Nc6 25.Bc4 Kf7 26.f4 Rd4 27.Be2 Rad8 28.Ba6 h6 29.Be3 (29.Be3 Re4 30.Kf2+–) 1–0. Wiszniowski,Eugeniusz (1785) – Somerski,Wojciech, Warszawa ch LX op A Poland, 2007.

7.Nbd2 Be7 8.c4 c5 9.bc5 bc5 10.cd5 Bd5 11.Bc4 Rb8 12.Rb1 0–0 13.0–0 Ba8 14.Qc2 Qc7 15.Rfc1 Rfc8 16.Ba6 Bb7 17.Bb7 Rb7 18.Qd3 Qb8 19.Bc3 Rb1 20.Rb1 Qc7 21.g3 (21.Qa6 cd4 22.Bd4 Nc5 23.Bc5 Qc5=) 21...cd4 (21...c4!? 22.Qc2 Ba3–/+) 22.Bd4+= Nc5 23.Qb5 Qd7 24.Qd7 Nfd7 25.Rc1 f6 26.Ne4 e5 27.Bc5 Nc5 28.Nfd2 f5 29.Nc5 Rc5 30.Rc5 Bc5 31.a4 Kf7 32.Kf1 Ke6 33.Ke2 e4 34.g4 g6 35.gf5 gf5 36.f3 ef3 37.Nf3 h6 38.Kd3 Kd5 39.Nh4 Ke5 40.Ng6 Kd5 41.Nf4 Ke5 ˝–˝. Fournier,Frederic (1885) – Tarlo,Maurice (1660), Ch Seine Saint Denis, 2009.

7.Nbd2 Be7 8.Bd3 c5 =.

7.Nbd2 Be7 8.Be2 0–0 9.0–0 c6 (9...a5 10.b5=) 10.c4 Re8 ˝–˝. Krueger,Wolfgang – Roggon,Bernd, 46. LEM, 1991.

6.Be2 Bd6

7.0–0 0–0 8.c4 c5 9.b5 dc4 10.Bc4 Qc7 11.g3 (11.Bf6 gf6 12.Nc3 Rd8=) 11...Nbd7+= 12.Be2 Rad8 13.a4 e5 14.d3 e4 15.de4 Ne4 16.Nbd2 Ndf6 17.Ne4 Ne4 18.Qc2 Rfe8 19.Bd3 f6 20.Nh4 Ng5 21.f4?? (better is 21.Rfd1=) 21…Nh3# 0–1. Neumann,Frank (1650) – Gottwald,Bernhard (1910), RSX11E – No Data–1, 2008.

7.0–0 0–0 8.d3 Nbd7 9.Nbd2 c5 10.b5 Rc8 11.c4 dc4 12.Nc4 Bb8 13.Qa4 Qc7 14.e4 Ng4 15.g3 f5 16.Rad1 fe4? (better is 16...Qd8=) 17.Ng5+– ed3?? (17...Ndf6 18.de4 Nh2 19.Kh2 Ne4+–) 18.Bg4 (18.Bg4 Bd5 19.Be6 Be6 20.Ne6+–) 1–0. Janek – Edward, internet, 2016.

7.0–0 Nbd7 8.Nc3 0–0 =.

7.0–0 Nbd7 8.c4 0–0 9.d3 (9.cd5 Bd5 10.Nc3 Bb7=) 9...Qe7 (9...c5 10.bc5 Nc5 11.Nbd2=) 10.Nc3 c6 (10...dc4 11.dc4 a6 12.Qc2=) 11.d4 (11.cd5 cd5 12.Nb5 Rfc8=) 11...e5 (11...dc4 12.e4 e5 13.Bc4=) 12.de5 Ne5 13.Ne5 (13.Nd4 A) < 13...dc4 14.Nf5 Qe6 15.Nd6+– (15.Qd6?! Qf5 16.Rfd1 Rfe8=); B) 13...c5 14.Nf5 Qe6 15.Nd6 Qd6 16.cd5 Ned7+/–) 13...Qe5= 14.g3 dc4 15.Na4 (15.Bc4!? Qe7 16.Bd3=+) 15...Qe7–/+ 16.Bf3 b5 17.Nc3 (17.Nc5 Bc5 18.bc5 Ne4–/+) 17...Rfd8–+ 18.Qc2 a5 (18...c5 19.Bb7 Qb7 20.Qf5 cb4 21.ab4–+) 19.ba5 Ra5 20.a4 b4–+ 21.Ne4 c3 22.Bc1 Be5 23.Bg2 c5 24.f4 Be4 25.Be4 Ne4 26.Qe4 Bf6 27.Qe7 Be7 28.Kf2 b3 29.Kf3 b2 30.Bb2 cb2 31.Rab1 Bf6 32.Rf2 Ra4 33.e4 Ra1 34.Rbf1 Bd4 (35.Rb2 Rf1 36.Kg2 Rg1 37.Kf3 Bb2–+) 0–1. Miranda,Jose Luis – Martinez Diaz,Javier, Asturias Juvenil, 1989.

7.0–0 Nbd7 8.c4 dc4 9.Bc4 0–0 10.d4 =.

7.0–0 Nbd7 8.d3 0–0 9.Nbd2 e5 10.c4 e4 11.de4 de4 12.Nd4 g6 13.Qc2 Ne5 14.c5 Be7 15.Rac1 a5? (better is 15...bc5!? 16.bc5 Qd7+/–) 16.cb6+– cb6 17.Qc7 Neg4?? (better is 17...ab4 18.Qb7 ba3+–) 18.Qb7+– Ra7 (18...Rb8 19.Qc6 ab4 20.ab4+–) 19.Qc6 (better is 19.Qa7 Qd6 20.g3 ab4 21.Bg4 Ng4 22.Ne4+–) 19...Bd6 (19...ab4 20.ab4 Ra2 21.Bc3+–) 20.Ne4 Ne4 21.Bg4 (21.Qe4?! Qh4 22.h3 Bh2 23.Kh1 Nf2 24.Rf2 Qe4 25.Kh2 ab4 26.ab4 Qe5 27.Kh1 Qe3=) 21...Qh4 22.h3 Re7 23.Bf5! Bb8 (23...gf5 24.Nf5) 24.Nf3 1–0. quaternion (2295) – mokachino, ChessWorld.net, 2003.

7.0–0 Qe7 8.c4 dc4 9.Bc4 Nbd7 10.d4 0–0 11.Nbd2 c6 12.e4 Bc7 13.e5 Ng4 14.h3 Nh6 15.Bd3 Kh8 16.Qc2 g6 (16...f5 17.ef6 Nf6 18.Ne5+/–) 17.Ne4 c5 (better is 17...f5 18.ef6! Nf6+/–) 18.Nf6?? (better is 18.dc5 bc5 19.bc5+–) 18...Nf6 (18...Bf3!? 19.Nd7 Qd7 20.gf3 cd4+=) 19.ef6= Qf6 (better is 19...Qd8!? 20.dc5 Bf3 21.gf3 bc5 22.bc5 Qd5=) 20.dc5+/– e5 21.Be4 Be4 22.Qe4 Rae8 23.c6 Re6 24.b5 Rfe8 25.a4 Qg7 26.Rfd1 f5 27.Qc2 R8e7? 28.Rd2 Ng8 29.Rad1 h5? 30.Rd7 Kh7?? 31.Ng5 Kh6 32.Ne6 Qf7 33.Nc7 Nf6 Black intends e4 34.Re7 Qe7 35.Nd5 Nd5 36.Rd5 e4 37.c7 e3 38.Re5 ef2 39.Kf2 Qh4 40.Kg1 (40.Kg1 a6 41.Qc1 f4 42.c8Q Qe1 43.Qe1 Kh7 44.Qf8 ab5 45.Re7) 1–0. Fournier,Frederic (1620) – lambtino, Active, 2006.

6.Be2 Nbd7

7.0–0 a5 8.b5 c6 9.bc6 Bc6 10.Nd4 Bb7 11.a4 Be7 12.Nc3 0–0 13.f4 e5 (13...Rc8 14.Rb1=) 14.Nf5+= Re8 (14...e4 15.Qe1+/–) 15.fe5+/– Ne5 16.Nb5 (16.Bb5 Ned7 17.Ne2+/– (worse is 17.Ne7 Re7 18.Rf5 Qc7+=)) 16...Ng6? (better is 16...Bb4!?+=) 17.Qe1 Bc8 18.Ne7 Qe7 19.Bf6 gf6 20.Qg3 Kh8? (better is 20...f5+–) 21.Nc7 Rg8 (21...Bd7 22.Nd5 Qc5 23.Nc7 Qc2 24.Na8 Ra8 25.Qf3+–) 22.Nd5 (22.Na8!? Qb7 23.Qd6 Qa8 24.Qf6 Rg7+–) 22...Qe6 (22...Qe5 23.Nb6 Qg3 24.hg3+–) 23.Nc7 (worse is 23.Nf6 Rd8 24.Qg5 Bb7+–) 23...Qe4 (23...Ne5 24.Qg8!! Kg8 25.Ne6 Be6+–) 24.Bf3 Qc2 25.Na8 (25.Qd6 Be6 26.Na8 Nh4+–) 25...Ne5 (25...Qd2 26.Qf2 Qf2 27.Kf2+–) 26.Qh4 (better is 26.Qf4!? Nf3 27.Qf3 Qd2 28.Qf6 Rg7+–) 26...Nf3 27.Rf3 Qc6 28.Qf6 Qf6 29.Rf6 Bb7 30.g3 (30.Nb6!? Rg2 31.Kf1 Rh2+–) 30...Ba8 31.Raf1 Rg4 (31...Rd8 32.d4+–) 32.Rb6 Ra4 (32...Kg7 33.Rf5+–) 33.Rb8 (better is 33.Rf7!? Rg4 34.Rf8 Kg7 35.Ra8 Rb4 36.Ra7 Kg8+–) 33...Kg7 34.Ra8 Ra2 35.Ra7 a4 (35...Rd2 36.Rff7 Kg6 37.Rg7 Kf6 38.Rh7+–) 36.d4 a3 (36...Kh6 37.Rff7 Kg6 38.Rh7+–) 37.Rf2 (37.Raf7 Kg8+–) 37...Ra1 38.Kg2 Kg6 39.d5 (better is 39.Raf7 Ra2+–) 39...Rd1 40.Ra3 Rd5 41.Ra6 Kg7 42.Rf4 (42.Ra7 Kg6 43.Rff7 h5+–) 42...Rd7 43.h4 Re7 (43...Rd8 44.Rg4 Kh8 45.Ra7+–) 44.Kh2 (44.Rg4 Kf8 45.e4 Re5+–) 44...Kg8 (44...Kf8 45.e4+–) 45.Kh3 Kg7 (45...Kf8 46.e4+–) 46.e4 Kg8 (46...h6 47.Kg4+–) 47.Raf6 (47.Rg4!? Kf8+–) 47...Kg7 48.Rf7! Rf7 49.Rf7 Kf7 50.Kg4 (50.Kg4 Ke6 51.Kf4+–) 1–0. Faraci,L – Lanza,Francesco Paolo, Robecchetto op–B, 2005. (=1.Nf3 d5 2.b4 b6 3.Bb2 Bb7 4.e3 e6 5.Be2 Nf6 6.a3 Nbd7)

7.0–0 a5 8.Nc3 =.

7.0–0 c5 8.bc5= Bc5 9.d4 Bd6 10.Ne5 (10.Nbd2 0–0=) 10...Qc7 (10...0–0 11.Nd2=) 11.f4+= 0–0 12.Bd3 (12.Nd2!?+=) 12...Ne4+= 13.Nd2 f6 14.Nd7 Qd7 15.Rf3 (15.c4 f5+=) 15...Kf7 (15...Rac8!?+=) 16.Rh3= Rh8 (16...Kg8 17.Rf3=) 17.Nf3 (17.Ne4 de4 18.Qh5 Kf8+=) 17...Rag8 (17...Qa4 18.Nd2+=) 18.Qe2 (18.Ne5 fe5 19.Be4 de4 20.de5 Qb5 21.Qd6 Rd8+= (21...Qb2 22.Qc7 Ke8 23.Qb8 Kf7 24.Qb7 Ke8 25.Rd1 Qb5 26.Qb8 Kf7 27.Qc7 Kf8 28.Rd8 Qe8 29.f5 g5 30.fe6 Rg7 31.Qd6 Re7 32.Re8 Kg7 33.Qe7 Kg6 34.Qf7)) 18...h5 (18...Qa4 19.Nd2 Rc8 20.Rc1+=) 19.Rf1= Ke7 (19...Be7 20.Nd2=) 20.Ne1 (20.Nd2 Rc8=) 20...g6 21.c4 (21.Nf3 Qa4=) 21...Qa4 Attacks the isolani on a3 22.Nc2 (22.cd5!? Bd5 23.Nf3+=) 22...Rc8 23.cd5 Bd5 24.Nb4 Bb4 25.ab4 Kf7 ˝–˝. Karanda,Konstantin (2195) – Demkovich,Svetlana, Kiev Independence Cup 4th, 2004.

7.0–0 Bd6 8.d4 Ne4 9.Nbd2 Nd2 (9...a5 10.Ne4 de4 11.Ne5 ab4 12.Nc4=) 10.Qd2 0–0 11.b5 (11.Ne5 f5=) 11...Nf6 12.a4 Ne4 13.Qd3 a5 14.Nd2 c5 (14...f5 15.f4=) 15.c3 (15.bc6!? Bc6 16.Ne4 de4 17.Qb3+=) 15...Qh4 16.f4 g5 17.Nf3 Qh6 18.Ne5 f6 19.Ng4 Qg7 20.Bc1 Kh8 21.Nf2 (21.Ba3 h5 22.dc5 Nc5 23.Bc5 Bc5–+ (23...bc5?! 24.Nf2+=)) 21...Rg8–/+ 22.Bf3 f5 23.g3?? (better is 23.Ra2–/+) 23...gf4–+ 24.ef4 Ng3! 25.Bg2 (25.hg3 Qg3 Mate attack) 25...Ne2!! 0–1. Tagirov,Kajum K (1895) – Sharafiev,Azat (2455), Uljanovsk Povolje op, 2010.

7.0–0 Bd6 8.Nd4 =.

7.0–0 Be7 8.c4 dc4 9.Bc4 0–0 =.

7.0–0 Be7 8.d3 0–0 9.Nbd2 c5 10.b5 (10.bc5 Bc5 11.c4 dc4 12.Nc4 Rc8=) 10...a6=+ 11.a4 ab5 12.ab5 Qc7 13.c4 dc4 (13...Ra1 14.Ba1 Ra8 15.cd5 Nd5 16.Nc4=+) 14.dc4= Ne4 (14...Bd6 15.Qc2=) 15.Qc2 Nd2 16.Nd2 Bf6 17.Bf6 (17.Rfd1 Bb2 18.Qb2 e5=) 17...Nf6 18.Rfd1 (18.Bf3 Bf3 19.Nf3 Ra1 20.Ra1 Rd8=) 18...Ra1 19.Ra1 Ra8 20.Ra8 Ba8 21.Nf3 (21.Qa4 Qb8=) 21...Be4 (Black is in command) 22.Qc3 h6 (22...Ng4 23.g3=) 23.Ne5 Qa7 24.h3 Qa2= 25.Bf3 Qb1=+ 26.Kh2 Bf3 27.Nf3 Ne4=+ 28.Qe1 Qc2 29.Kg1 Qc4–+ 30.Ne5 Qb5 31.Qe2?? Qe2 (32.Ng4 h5 33.Nh6 gh6 34.Kh2 c4 35.f4 c3 36.f5 c2 37.fe6 Qe1 38.ef7 Kf7 39.g4 Qd2 40.Kg1 c1Q#) 0–1. Onkel_Luis – F_master, ICC, 2003.

7.0–0 Be7 8.d4 0–0 9.Nbd2 Re8 10.Bd3 Rc8 11.c4 dc4 12.Nc4 h6 13.Nce5 (13.Rc1 c5 14.dc5 bc5+=) 13...Ne5 14.Ne5 Nd5 (14...c5 15.dc5 bc5 16.Qe2=) 15.Qc2 Bd6 16.Nf3 Qf6 17.e4 Nf4 18.e5?? (better is 18.Bc1=) 18...Qe7 (better is 18...Nh3! 19.gh3 Qf3 20.Bh7 Kh8–+) 19.Be4+– Be4 20.Qe4 Nd5 21.ed6 Qd6 22.Ne5 f6 23.Nc4 Qd7 24.Ne3 Re7 25.Rfe1 Rce8 26.Qf3 Qc6 27.Rac1 Qa4 28.Qd1 Qb5 29.Qb3 Nf4 30.Rcd1 c5?! 31.dc5 bc5 32.h3 a5? 33.Nc2 c4 (33...c4 34.Qc3 Qg5+–) 0–1. Fournier,Frederic (1645) – urugallo (1660), Active, 2007.

7.Nc3 c5 =.

7.c4 a5 8.cd5 Nd5 =.

7.c4 c5 8.bc5 Bc5 9.cd5 ed5 10.0–0 0–0 11.d3 Rc8 12.Nbd2 Re8 13.Nb3 Bd6 14.Nbd4 Bb8 15.h3 Nc5 16.Rc1 Qd7 17.Qd2 Re7 18.Rc2 Rce8 19.Rfc1 Bc8 20.Qb4 Ba6 21.Qd2 h6 22.Nh2 Qd6 23.Nf1 Bc8 (23...Qd7 24.Bc3=) 24.Nb5 Qe6 25.Qb4 Bd7 26.Bd4 Bb5 27.Qb5 Nfd7 28.Ba1 Qg6 29.Rd2 a6 30.Qb4 Bd6 31.Qb2 Be5 (31...d4 32.Re1+=) 32.Qa2 (better is 32.d4 Bf6 33.Qa2+/–) 32...d4 33.ed4? (better is 33.Bd4 Bd4 34.ed4=) 33...Bf4–+ 34.Ne3 Na4?? (34...Re3 35.dc5 Rh3–+) 35.Rf1 (35.Nd5!? Qg5 36.Ne7 Qe7 37.Rcc2 Bd2 38.Rd2=) 35...Nf6 36.Rdd1 Qg5 37.Bf3 Re3?? (better is 37...Be3 38.fe3 Qe3 39.Qf2 Qe6=) 38.fe3+/– Be3 39.Kh1 Qg3? (better is 39...b5!?+/–) 40.Bc6+– Re6? (40...Bf4 41.Rf4 Qf4+=) 41.Rf3 (41.Ba4?? Ng4 42.Qe6 Qh2) 41...Qd6 (41...Qg5 42.Ba4 Bf4 43.d5+–) 42.Ba4 (better is 42.d5 Re7 43.Bf6 gf6 44.Ba4 b5+–) 42...Nh5 (42...Bd4 43.Bd4 Qd4+–) 43.Re3 Re3 44.Bb3 Qf4 45.Bf7 Qf7 46.Qf7 Kf7 47.Kg1 (47.d5 Re2+=) 47...Re2 48.Bc3 Ke6 49.g4 Nf6 (49...Nf4 50.Rb1 b5–/+ (worse is 50...Nd3 51.Rb6 Kd5 52.Ra6+=)) 50.Re1+= Re1 51.Be1 Kd5 52.Bc3 Ne8 53.Kf2 Nc7 54.Ke3 Nb5 55.Bb2 g5 56.a4 Nc7 57.Ba3 Ne6 58.Be7 b5 59.ab5 ab5 60.h4 (60.Kd2 Kd4 61.Bf6 Kd5=) 60...gh4 61.Bh4 b4 62.Be1 b3 63.Bc3 Nc7 64.Ba1 Ke6 65.Ke4 Kd6 66.d5 Nd5 67.Kd4 (67.Bd4 Ke6+=) 67...Nf6–/+ 68.Kc4 Ng4 69.Kb3 h5 0–1. Tagirov,Kajum K (1910) – Khaziev,Anvar (2090), Ufa Cup, 2007.

7.c4 Be7 8.0–0 0–0 9.Nc3 Rc8 (9...dc4 10.Bc4 a5 11.b5=) 10.d4 c5 11.dc5 bc5 12.bc5 (12.cd5!? ed5 13.h3=) 12...Nc5 13.cd5 Nd5 14.Nd5 Qd5 15.Qd5 Bd5 (15...ed5?! 16.Rfb1+=) 16.Nd4 Nb3 (16...Rfd8!?+=) 17.Nb3= Bb3 18.Rac1 Rfd8 19.Rc8 Rc8 20.Rc1 Rc1 21.Bc1 a5 22.Bb2 a4 23.Kf1 Kf8 24.Ke1 Bf6?? (better is 24...Bd5=) 25.Bf6+/– gf6 26.Kd2 Ke7 27.Bd3 h6 (27...f5 28.Kc3 Kd6 29.Bc4+–) 28.Bc2 Bd5 29.g3 Bc6 (29...Kd6 30.Kd3 Kc5 31.Ba4 Bc4 32.Kc3 f5+–) 30.Kc3 f5 31.Kb4 Kd6 32.Ba4 (32.Ba4 Be4 33.Bb5+–) 1–0. Stoyanov,Georgi – Sabov,Borislav, 131st MGU Open, 2015.

7.d3 Be7 8.0–0 0–0 +=.

7.d3 Be7 8.Nbd2 c5 9.bc5 Nc5 10.d4 =.

7.d3 Be7 8.Nbd2 Rc8 9.c4 (9.0–0 0–0+=) 9...0–0 (9...dc4 10.dc4 c5 11.b5=) 10.0–0 c5 (10...dc4 11.dc4 a5 12.Qb3=) 11.b5 Qc7 (11...Bd6 12.Qa4=) 12.Ng5 (12.Qa4 Ra8=) 12...e5 13.Nh3 (13.f4 Rce8=) 13...e4 (13...a6 14.ba6 Ba6 15.f4=) 14.f4 (14.Ng5 Ne5 15.de4 de4+=) 14...ed3 15.Bd3 dc4 (15...Rce8 16.cd5 Bd5 17.e4=+) 16.Nc4 Ne4 17.Qc2 (17.Nf2 Ndf6=) 17...f5 18.Nf2 Ndf6 19.Rad1 Rcd8? (19...Nf2 20.Rf2 Ne4 21.Be5 Nf2 22.Bc7 Nd1 23.Be5+– (23.Qd1?! Rc7 24.Nd6 Bd6 25.Bc4 Kh8 26.Qd6 Rfc8=)) 20.Ne5 (better is 20.Be5!? Qc8 21.Bf6 Nf6 22.Bf5+/–) 20...Bd6 (20...Bd5 21.Bc4 Nf2 22.Rf2+= (< 22.Qf2 Bc4 23.Nc4 Ne4=)) 21.Bc4+= Kh8 22.Qb3 Nf2 23.Rf2 Ne4 24.Rff1 Be5 25.Be5 Qe7 26.Bd5?? Rd5 27.Rd5=+ Bd5 28.Qd5 Rd8 29.Qc6 Qd7 30.g4 Qd2 31.gf5 Qe3 32.Kh1 Nf2 33.Rf2?? Qf2 34.Bg7 Kg7 35.f6 Kg6 36.Qe4 Kh6 (37.Qh7 Kh7 38.f7 Rd1#) 0–1. Wolf,Heinz – Linder,Oliver, Verbandsliga Nord Baden, 1994.

7.d4 Be7 8.0–0 a6 9.c4 dc4 10.Bc4 b5 (10...c5 11.bc5 bc5 12.Nbd2=) 11.Bb3 (11.Bd3 Bd6+=) 11...h6 (11...a5 12.ba5 0–0 13.Bc3=) 12.Nbd2 0–0 13.Rc1 Nb6 (13...a5 14.Bc3=) 14.Qc2 Rc8 (14...a5 15.ba5 Ra5 16.Qc7 Bf3 17.Nf3 Ba3 18.Ba3 Qc7 19.Rc7 Ra3 20.Rb1=) 15.Ne5 Qd6 16.Qd3 (16...Rfd8 17.Qe2=; 16.e4 Rfd8+=) =. Slavisa666 – Vargas5, Live Game Caissa's Web, 2004.

5.Nf3 c5

6.b5 (--> 4.a3 c5 5.b5 b6 6.Nf3).

6.c4 Nc6 7.cd5 ed5 8.Bb5 Bd7 9.Qa4 Bd6?? (Better is 9...Nb8=) 10.Bc6+– b5 (10...0–0 11.b5 Bc6 12.bc6+–) 11.Qb5 (11.Qa6!? Rb8 12.Bf6 gf6 13.bc5 Bc5 14.Bd5 Rb6+–) 11...Rb8 12.Bd7 Nd7 (12...Qd7 13.Qd7 Nd7 14.Nc3+–) 13.Qc6 Rb6 14.Qd5 0–0 15.0–0 cb4 16.ab4 Rb4 17.Qd6 Rb2 18.Qd4 Rb7 19.Ra7 Ra7 20.Qa7 Nf6 21.d4 Qd5 22.Nc3 Qc4 23.Qc5 Rc8 24.Qc4 Rc4 25.Rc1 h6 26.Ne5 1–0. market (1860) – frito_got_laid, GameColony.com, 2002.

6.bc5 bc5 7.Be2 Nc6 8.0–0 Bd6 9.c4 dc4 10.Bc4 0–0 11.d4 cd4 12.Nd4 Nd4 13.Bd4 Bb7 (13...Qc7 14.Bf6 Bh2 15.Kh1 Qc4 16.Nd2=) 14.Nd2 Rc8 15.Be2 (15.Ba7 Ne4 16.Ne4 Bh2 17.Kh2 Qh4 18.Kg1 Qe4=) 15...Qa5 Attacking the isolated pawn on a3 16.Bb2 (16.Bf6 gf6 17.f4 Be7= (17...Ba3? 18.Nb1+–)) 16...Qg5 (16...Rfd8 17.Bf6 gf6 18.Qe1 Qd2 19.Qd2 Bh2 20.Kh2 Rd2 21.Bh5–/+) 17.g3 (17.Nf3 Bf3 18.Bf3 Rfd8=) 17...Qh6 18.Bf3 Bf3 19.Nf3 Ng4?? (19...Rfd8 20.Qa4+=) 20.Kg2?? (better is 20.Qd6 Qh5 21.Rac1+–) 20...e5?? (better is 20...Bc5+=) 21.h3+/– e4 22.Nd4+– Bg3? 23.fg3 Ne3–+ 24.Kh2 Nd1 25.Rad1 Rc2 (25...Rc2 26.Nc2 Qb6=) 0–1. Fournier,Frederic (1700) – petacas (1735), Active, 2006.

6.Ne5 a6 =.

5.Nf3 Be7

6.Nc3 0–0 =.

6.c4 0–0 7.Nc3 =.

6.c4 Bb7 7.Nc3 0–0 8.Be2 Nbd7 (8...a5 9.b5=) 9.0–0 (9.cd5 ed5 10.0–0 c5=) 9...c5 (9...dc4 10.Bc4 Bf3 11.gf3=) 10.bc5 (10.cd5 Nd5 11.Qc2 Rc8=) 10...Nc5 11.d4 (11.Nd4=) 11...Ncd7 (11...Nce4 12.Nd2=) 12.cd5 (12.Rc1 h6+=) 12...Nd5 13.Nd5 Bd5 14.Rc1 ˝–˝. Zander,T – Richtscheid,Jens, RH–op, 1996.

6.c4 Bb7 7.cd5 ed5 8.Nc3 0–0 =.

6.c4 Bb7 7.cd5 ed5 8.Bd3 0–0 =.

6.c4 Bb7 7.Be2 0–0 8.0–0 dc4 9.Bc4 c5 10.b5 (10.bc5 Nbd7=) 10...Nbd7+= 11.d3 Qc7 12.Nbd2 Rad8 (12...Bd6 13.h3=) 13.Qb3= Ng4 (13...Ne8!?=) 14.Be6+= Nge5 15.Bd5 Bf6 (15...Bd5 16.Qd5 Bf6 17.Ra2+=) 16.Bb7+/– Qb7 17.d4 Nf3 18.Nf3 Rfe8 19.Rac1 Re4 20.h3 Rde8 21.Ba1 h6 22.Rfd1 Qb8 (22...a5 23.Qc2 R4e6 24.a4+–) 23.Qd5+– R4e7 24.a4 g6 25.Bb2 Rd8 26.Qb3 Rde8 (26...Ree8!? 27.Qa2+–) 27.Ba3 Rc8 28.Qd5 Qc7 29.Rc4 (29.e4 Bg5 30.Ng5 hg5+–) 29...Ree8 30.Rc2 Be7 31.Bb2 Nf6 32.Qc4 Ne4 33.Ne5 Bf6 34.Ng6 Qd7 35.Nf4 cd4 36.Qb3 Rc2 37.Qc2 Qb7? (better is 37...Qc8 38.Qc8 Rc8+–) 38.Bd4 Rc8 (38...Bg5 39.Qc6 Qc6 40.bc6+–) 39.Qd3 (better is 39.Bf6 Nf6 40.Qf5+–) 39...Be7?! (39...Rd8 40.Rc1 Qe7 41.Bf6 Nf6 42.Qf5+–) 40.Qe2 (40.Bb2 Nf6+–) 40...Nf6 (40...Bg5+–) 41.Nh5 (41.Nh5 Nh5 42.Qg4 Kf8 43.Qh5+–) 1–0. Tagirov,Kajum K (1865) – Fedorov,Vladimir, Championship Respublik Bashkortostan, 2010.

6.c4 Bb7 7.Be2 0–0 8.0–0 Nbd7 9.d4 c5 10.b5 Qc7 11.Nbd2 Rac8 12.Rc1 Qb8 13.Qb3 Rfd8 14.Rfd1 cd4 15.ed4 dc4 16.Bc4 Bd6 17.a4 Bf4 18.g3 Bd6 19.Re1 Bd5 20.Ne5 Be5 21.de5 Nc5 22.Qa3 Bc4=+ 23.Nc4 Nd3 24.ef6 Ne1 25.Qe3 Rc4 26.Re1? Rc5 27.fg7 ˝–˝. Labahn,Wolfgang – Vullhorst,W, Paderborn GER, 1992.

6.Be2 0–0 =.

6.Be2 a5 =.

4...c5

5.b5 Qb6 6.c4 a6 7.Qc2 ab5 8.Bf6 gf6 9.cd5 ed5 10.Nc3 c4 11.Nd5 Qd8 12.Nf4 Ra3 13.Rb1 Qd7 14.Nf3 Na6 15.Nd4 Nb4 16.Qe4 Be7?? (better is 16...Kd8+=) 17.Rb4+– (17.Rb4 f5 18.Qb1 Bb4 19.Qb4 Ra1 20.Ke2+–) 1–0. combijack (1780) – graf76 (1630), gameknot.com, 2011.

5.b5 Ne4 6.Bd3 (6.Nf3 f6=) 6...b6 (6...Bd7 7.c4=) 7.Be4 de4 8.Qg4 (8.Nc3 a6=) 8...Bb7 9.a4 (9.f3 h5 10.Qf4 a6=) 9...Nd7 (9...a6 10.Ne2= (10.Bg7 Rg8–+)) 10.Ne2 (10.Bg7? Rg8–+) 10...Nf6 (10...h5 11.Qg3=) 11.Qg5 (11.Bf6 Qf6 12.Nbc3 h5+=) 11...Be7 12.Qg7 White launches an attack 12...Rg8 13.Qh6 Rg2 14.Nf4 Rf2 (better is 14...Rg8=) 15.Rg1+/– Rf4 (15...Bf8 16.Qf6 Qf6 17.Bf6 Rh2 18.a5 ba5 19.Be5+/–) 16.Qf4 Kd7 (16...Nd7 17.Rg7 f5 18.Qh6+–) 17.c4 (17.Rf1 Nd5 18.Qf7 Qg8+–) 17...Ng8? (better is 17...h6+–) 18.Qf7 Qf8 (18...Nh6 19.Qh7 Nf5 20.Bf6+–) 19.Qh7 Qf3 (19...Nf6 20.Qg7+–) 20.Rf1 (20.Rg8 Rg8 21.Qg8 Bh4 22.Qg3 Bg3 23.hg3 Qg3 24.Ke2 Qg2 25.Ke1 e5 26.Be5 Ke7–+) 20...Qg2 (20...Qg4 21.a5 Kd6 22.Rf4 Qg1 23.Ke2+–) 21.Na3 (21.a5 ba5 22.Nc3 Qg4+–) 21...Rd8 (21...Qg4 22.Rf4 Qg1 23.Ke2 Qg2 24.Kd1+–) 22.0–0–0 Kc8 (22...Qg5+–) 23.Rg1 Qf3 24.Rg8 (24.Rg8 Qf5 25.Rg7+–) 1–0. Andersson,Lars H – Bohlin,Bertil, corr SSKK 2–92, 1987.

5.c3 a6 6.Nf3 Nc6 7.Be2 c4 8.0–0 Bd6 9.d3 b5 10.Nbd2 Ne7 11.d4 (11.a4 Bb7=) 11...Ng6 12.Re1 Qc7 13.a4 Bd7 14.Qc2 0–0 15.a5 Ng4 16.g3 h5 (16...Nf6+=) 17.Ne5 (better is 17.e4!?+=) 17...Be5 18.de5 N4e5 19.Nf3 Nf3 20.Bf3 e5 (20...h4!?–/+) 21.Rad1 (21.Bd5 Bc6 22.Qg6 Bd5 23.Qh5 f5=) 21...h4 (better is 21...Bg4 22.Bg4 hg4 23.Rd5 Rad8+=) 22.Re2?? (22.Bd5 Bc6 23.Qg6 Bd5 24.Qh5=) 22...e4–+ 23.Bg2 h3 24.Bf1 Bg4 25.Ree1 (25.Rd5!? Be2 26.Be2–/+) 25...Bd1–+ 26.Rd1 Qe5 27.Bh3 Qh5 28.Kg2 Rfe8 29.Rd2 Re5 30.Qd1 Qd1 31.Rd1 Rd8 32.Bg4 f5 33.Bh5 Nf8 34.h3 g6 35.Be2 Ne6 36.h4 Kg7 37.f3 Kh6?? 38.f4+= Nf4 39.ef4 Re7 40.Bc1 Red7 41.Kh3 d4+= 42.cd4 Rd4 43.Rf1? c3–+ 44.g4 fg4 45.Bg4 c2?? 46.f5+/– Kh7 47.fg6 Kg6 48.h5 Kh7 49.Rf7 Kg8+/– 50.Be6 Rd3 51.Kh4 Kh8?? 52.Bb2 R8d4 53.Bd4 Rd4= 54.Ra7?? Rd8 55.Rc7+– Rd2 56.Rc8 Kg7 57.Rc7 Kh6?? 58.Rc6 e3?? 59.Bb3 Kg7 60.Bc2?? e2+= 61.Rc7?? Kf8–+ 62.Rc8 Ke7 63.Rc6 e1Q 0–1. pieeater – epasacrifice, ChessWorld.net, 2012.

5.c3 cb4 6.cb4 a6 7.Nc3 Be7 8.Nf3 0–0 9.Be2 Bd7 10.0–0 Nc6 11.Rb1 Na7 12.Ne5 Bc6 13.Nc6 bc6 14.Bd3 Nb5 15.Nb5 cb5 16.Bf6 Bf6 17.Qb3 Rc8 18.Bc2 Rc7 19.Qd3 g6 20.f4 Qe7 21.Rbc1 Rfc8 22.Rf3 Bb2 23.Rcf1 Rc2 24.e4 de4 25.Qe4 Bg7 26.R3f2 R2c4 27.Qd3 Rd8 28.Qg3 Qd6 29.h3 Qd3 30.Qd3 Rd3 31.h4 Bd4 32.Kh1 Bf2 33.Rf2 Rc2 34.Kh2 Rcd2 35.Rf1 Re2 36.Rc1 Rdd2 37.Rc8 Kg7 38.Rc6 Rg2 39.Kh3 Rh2 40.Kg3 Rdg2 41.Kf3 Ra2 42.Ra6 Rh4 43.a4 Ra4 44.Rd6 Rb4 45.Rb6 Rhf4 46.Ke3 h5 47.Rd6 h4 48.Rd1 h3 49.Rh1 Rh4 50.Kf3 h2 51.Kg3 Rh5 52.Rh2 Rh2 53.Kh2 Rf4 54.Kg3 e5 55.Kg2 b4 56.Kg3 b3 57.Kg2 b2 58.Kg3 b1Q 59.Kg2 Qd3 60.Kg1 Qe2 61.Kh1 Rf1# 0–1. ronnieg (2625) – SavinoVic (2785), fics, 2001.

5.c3 Bd6 6.Nf3 0–0 7.Bd3 b6 8.Bc2 e5 9.d3 Qc7 10.Nbd2 Bb7 11.e4 Rd8 12.Qe2 cb4 13.ab4 d4 14.Nc4 (better is 14.Nb1!?=+) 14...dc3–+ 15.Ba3 b5 16.Nd6 Qd6 (16...Rd6?! 17.Ne5 Be4 18.de4=+) 17.0–0 Nc6 18.Rfe1 Nh5 19.g3 g6 20.Rab1 a5 21.d4 Nd4 22.Nd4 ed4 (< 22...Qd4 23.Red1 Qb6 24.Rd8 Rd8 25.ba5 Qa5 26.Bb4=+) 23.Qb5 Ba6 24.e5 Bb5 25.ed6 d3 26.ba5 Ra5 27.Bb4? (better is 27.Rb5 Ra3 28.Bd3 Rd6 29.Bc4–+) 27...dc2 28.Ba5 cb1Q (28...cb1B?! 29.Bd8 c2 30.f4–+; 28...cb1N?! 29.Bd8 c2 30.Rc1–/+) 29.Rb1 c2 30.Rc1 Ra8 31.Bc3 Ba4 32.Ra1 (32.Kg2 Rd8–+) 32...Rb8 (better is 32...Rd8 33.Be5 Rb8–+) 33.Rf1 (33.Kg2–+) 33...Rb1 34.Bd2 Nf6 (better is 34...Rd1 35.Bg5 Bb5 36.Be3–+) 35.f3 (35.Rc1 Ne4 36.Be3 Nd6–+) 35...Bb5 (better is 35...Rd1 36.Be3 Bb5–+) 36.Rc1 Ne8 37.Kf2 Rc1 38.Bc1 Nd6 39.Ke3 Ba4 40.Kd4 Nf5 41.Kc3 f6 42.f4 Kf7 43.Kb4 Nd4 (better is 43...Bc6–+) 44.Ka4 Ne2 45.Kb3 Nc1 46.Kc2 Ne2 47.Kd3 Ng1 48.Ke3 Nh3 49.g4 g5 50.fg5 fg5 51.Kf3 Ke6 52.Kg3 Nf4 53.h4 h6 54.hg5 hg5 55.Kf3 Kd5 56.Kf2 Ke4 57.Kg1 Kf3 58.Kh2 (58.Kf1 Kg4 59.Kf2–+) 58...Kg4 59.Kh1 Kg3 60.Kg1 Nh3 61.Kh1 Nf2 (61...Kf2 62.Kh2 g4 63.Kh1 Nf4 64.Kh2 g3 65.Kh1 g2 66.Kh2 g1Q) 62.Kg1–+ g4 63.Kf1 Kh2 0–1. Mostajo,Brady – Pacheco,Garri (2200), Pan American–ch U14, 2003.

5.c3 Bd7 6.Nf3 c4 7.Be2 Bd6 8.0–0 (8.d3 cd3 9.Qd3 e5=+) 8...a6 (8...e5 9.Ne1–/+) 9.d4 (9.d3 cd3 10.Qd3 Bb5=+) 9...Qc7 (9...0–0 10.a4=+) 10.Re1 (10.Nbd2 0–0=+) 10...b5 11.h3 (11.Qc2 0–0=+) 11...0–0–/+ 12.Nbd2 Nc6 (12...a5 13.Qc2–/+) 13.Qc2=+ e5 (13...a5 14.e4 Bf4 15.e5=+) 14.de5 Ne5 15.Rad1 Rad8 (15...Rfe8 16.Nd4=+) 16.Nf1 (16.Ne5 Be5 17.Nf3 Bd6=+) 16...Be6 (16...Nf3 17.Bf3 Be5 18.Bd5 Nd5 19.Rd5=+) 17.Ne5 (17.N1d2 Rfe8=+) 17...Be5 18.f4 (18.Nd2 Rfe8=+) 18...Bd6–/+ 19.Bf3 Rfe8 (19...Qc6 20.Ng3–/+) 20.Ng3 (20.Rd4 Qc6=+) 20...g5 (20...Qc6 21.Bc1=+) 21.Nh5 (21.Nf5 gf4 22.Nd6 Qd6=) 21...Nh5–/+ 22.Bh5 gf4 23.ef4 Bf4 24.Rf1 Bg5 25.Bf3 Qg3 26.Bg4?? Bg4–+ 27.hg4 Be3 28.Rf2 Qg4 29.Rdf1 Bf2 30.Qf2 Rd7 31.Bc1 Re2 32.Qf3 Qf3 33.Rf3 Re1 34.Rf1 Rde7 35.Kf2 R7e2 36.Kg1 Kg7 37.Bf4 Rf1 38.Kf1 Ra2 39.Be5 Kg6 40.Bd4 Ra3 41.Kf2 Ra2 42.Kg3 Kf5 43.Kf3 a5 44.ba5 Ra5 45.g4 Kg6 46.Kf4 Ra1 47.Ke5 Kg5 (48.Bc5 Rd1–+) 0–1. Queenwomen – ncc_1701, ChessWorld.net, 2005.

5.c3 Nbd7 6.d4 c4 7.Nd2 Bd6 8.Ne2 Qc7 9.g3 0–0 10.Bg2 b5 11.a4 Bb7 12.ab5 Qb6 13.e4 Ne4 (< 13...de4 14.Nc4 Qc7 15.Nd6 Qd6 16.0–0+/–) 14.Be4 de4 15.Nc4 Qc7 16.Nd6 Qd6 17.Qb3 Nb6 18.c4 Qd7 19.d5 ed5 20.c5 Nc4 21.c6 Bc6 22.bc6 Qc6 23.Bd4 Qb7 24.Qc3 f6 25.0–0 Rfc8 26.Rfd1 Ne5 27.Qb3 Nf3 28.Kg2 Rc4 29.Be3 a5 30.Nf4 Rb4 31.Qd5 Qd5 32.Nd5 Rb7 33.Nb6 Ra6 34.Rd8 Kf7 35.Nd7 Rc6 36.Nc5 Rb5 37.Ne4 Ne5 38.Nd6 Ke7 39.Nb5 Kd8 40.Ra5 g6 41.Ra7 h5 42.Rg7 Ke8 43.Bd4 Kf8 44.Rc7 Rc7 45.Nc7 Nd7 46.Kf3 Kf7 47.Ke4 Ke7 48.Kd5 f5 49.h4 Kf7 50.Ne6 Ke7 51.Ng5 Nf6 52.Bf6 Kf6 53.Kd6 1–0. Eagle_9 (2385) – Pedronou (2380), ChessWorld.net, 2003.

5.c3 e5 6.d4 ed4 7.ed4 =+.

5.Bc3 b6 6.Nf3 Bb7 7.Bb5 Nbd7 (7...Bc6 8.Bc6 Nc6 9.b5=) 8.Ne5 (8.0–0 a6 9.Bd7 Nd7=) 8...a6 9.bc5? (9.Bd7 Nd7 10.Nd7 Qd7=+) 9...ab5 10.c6 Bc6 11.Nc6 Qc7 12.Nd4 b4 13.Bb2 (13.Nb5 Qd8 14.Bf6 Nf6=) 13...Rc8 (13...e5 14.Nb5 Qc4 15.a4=) 14.f4= Be7 (14...Bc5 15.Nb5 Qc6 16.Na7+–) 15.0–0 (15.ab4 Bb4 16.Ra4 Be7=) 15...0–0 16.ab4 Bb4 17.Na3 Ne4 (17...Ba3 18.Ra3 Ra8 19.Ra8 Ra8 20.d3=) 18.Nab5+= Qd8 19.d3 Nef6 20.Na7 Ra8 21.Nac6 (21...Ra1 22.Qa1+–) 1–0. Harthimmer,Arne – Vreeman,H, corr DEN–NLD, 1992.

5.c4 dc4 6.Bc4 (6.bc5 Bc5 7.Bc4 Nc6=) 6...Nc6 (6...cb4 7.Nf3=+) 7.b5 Na5 8.Ba2 (8.Be2 Bd6=) 8...Be7 9.Nf3 0–0 10.0–0 b6 (10...a6 11.Nc3=+) 11.d4= c4 (11...a6 12.dc5 bc5 13.a4=) 12.Nbd2 Qd5 13.a4 a6 14.Qc2 Increases the pressure on c4 14...ab5 15.ab5 Qb5 16.Nc4 (16.Bc4 Qh5=) 16...Ba6 (16...Bb7 17.Nfe5=+) 17.Na5 (17.Nfe5!?=) 17...ba5=+ 18.Rfc1 Rab8 (18...Rfc8 19.Qb1=+) 19.Rab1 Rfc8 20.Bc3 Bb4 21.Qd1 Ne4 22.Bb4 (22.Ba1 Qd3 23.d5 Rc1 24.Rc1 Qd1 25.Rd1 Be2=+) 22...ab4 23.Rc8 Rc8 24.Rb2 (better is 24.Ra1!?–/+) 24...Nc3–+ 25.Qa1 Ne2 (26.Re2 Qe2–+) 0–1. Ackermann,Robert – Soergel,Frank, Mittelfranken–chA, 1998.

5.c4 Ne4 6.d3 Nf6 7.Nd2 (7.bc5!? Bc5 8.cd5 ed5 9.Bf6 Qf6 10.d4=) 7...cb4–/+ 8.cd5 ed5 9.Ngf3 ba3 10.Ba3 Ba3 11.Qa4 Nc6 12.Ra3 0–0 13.Be2 a6 14.d4 Qe7 15.Rc3 (15.0–0 Bf5 16.Rc1 Rfc8–/+) 15...Bd7 16.Qc2 Rfc8 17.0–0 b5 18.Nb3? (better is 18.Rc5–/+) 18...Ne4–+ 19.Rd3 Nb4 20.Qb1 Bg4 21.Nc5 Nd3 (21...Nd3 22.Nd3 Bf3 23.Bf3 Nd2–+) 0–1. Ruiz Salinas,R – Iglesias,L, 1988.

5.bc5 Bc5 6.Nf3 0–0 =+.

5.bc5 Nc6 6.d4 b6 7.cb6 Qb6 8.Qc1 Rb8 9.Ra2 Ne4 10.Nc3 (10.f3 Qa5 11.Nd2 Nd2 12.Qd2 Qa4=) 10...Qa5 11.Nge2 Bd6 12.f3 Nc3 13.Nc3 0–0 14.Bd3 (14.Qd2 Ba6=) 14...Ba6 (14...e5 15.Qd2 ed4 16.Nd1+=) 15.0–0 Bd3 16.cd3 Rfc8 17.Qd2 e5 (17...Qc7!? 18.f4 Na5=) 18.de5+= Ne5 19.d4?? (better is 19.Rc1+=) 19...Nc4–+ 20.Qe2 Nb2 21.Rb2? (21.Nd5 Qd5 22.Rb2 Ba3 23.Rb8 Rb8 24.Qa6–+) 21...Qa3 (better is 21...Qc3 22.Rb8 Rb8–+) 22.Rb8 (22.Nb5 Qa6+=) 22...Rb8 (better is 22...Bb8!? 23.Nd5 Qd6=) 23.Nd5+/– Rb2 (23...Bh2!? 24.Kh2 Qd6 25.Nf4 g5+=) 24.Qc4 Rb3 25.e4 h6 26.e5 Be7?? (better is 26...Bf8+/–) 27.Ne7+– Kh7 (27...Kf8 28.Qc8 Ke7 29.Rc1 Qc1 30.Qc1+–) 28.Nd5 (better is 28.Qf7 Rb8 29.Nf5 Rg8+–) 28...Rb2 29.Nf4 (29.Nf4 Qe3 30.Kh1 Qf4 31.Rd1+/–) 1–0. Fournier,Frederic (1820) – joacanon (1720), Active (5/0), 2006.

5.bc5 Ne4 6.c4 Nc5 =. coloplayah (2015) – tacitus (1900), net–chess.com, 2005.

5.d4 cb4 6.ab4 Bb4 7.c3 Be7 8.Bb5 Nc6 9.Nf3 0–0 10.h4 Qb6 11.Bc6?? (11.Qe2 a6–/+) 11...bc6 (better is 11...Qb2 12.Bb7 Bb7–+ (< 12...Qa1 13.Ba8 Bd7 14.Bd5 ed5 15.Qb3–+)) 12.Qc2 Ba6 13.Ba3 Ba3 14.Ra3 Ne4 15.Nbd2 f5 16.Ne4 fe4 17.Ne5 Rad8 18.Qa2 (better is 18.Ra1=+) 18...c5?? (better is 18...Rb8 19.Ra6 Qb1 20.Qb1 Rb1 21.Ke2 Rh1 22.Ra7 Rh4–+) 19.Ra6+– Qc7 20.Re6 (better is 20.Ra7 Qa7 21.Qa7+–) 20...cd4+/– 21.cd4?? (better is 21.Nc6 de3 22.0–0+/– (22.Nd8?? Qc3 23.Kd1 Qd3 24.Kc1 ef2–+; < 22.fe3 Qg3 23.Kd1 Qg4 24.Ke1 Qe6 25.Nd8 Rd8–+)) 21...Qc3?? (better is 21...Qc1 22.Ke2 Qh1–+) 22.Qd2 (better is 22.Kd1+–) 22...Qa1+/– 23.Qd1 Qa5 24.Qd2?? (better is 24.Kf1 Rb8 25.f3+–) 24...Qc7?? (24...Qa1 25.Qd1 Qa5 26.Kf1 Rb8+–) 25.Rc6 Qe7 26.0–0 Rf5 27.Ra6 Qh4 28.Nc6 (better is 28.Ra7!? Rh5 29.f4 Qg3+–) 28...Rh5 29.f4 Qh2 30.Kf2 Rf8 31.Ne7 Kh8 32.Ra7 g5? (32...Qh4 33.Ke2 Qg3+–) 33.f5 (better is 33.Nd5!? Qh4 34.Ke2 Qg3+–) 33...g4 34.Ke2 (better is 34.Rd7!? Rh6+–) 34...Qg2 35.Rf2 Qh1?? (35...Qf2 36.Kf2 Rh2 37.Ke1 Rd2 38.Kd2 Rf7+–) 36.f6 (better is 36.Qb4 Rd8 37.Qb7+–) 36...Rh2?? (36...Qb1 37.Qd1 Qb2 38.Kf1 Qb8–+) 37.Qe1?? (37.Rh2 Qh2 38.Kd1 g3+=) 37...Rf2 (better is 37...Qf3! 38.Kd2 Rf2 39.Kc3 Qf6–+) 38.Qf2+– Qh5? (38...Qf3 39.Qf3 gf3 40.Kf2 Rf6 41.Nd5 Rc6+–) 39.Qg3 Rf6 (39...Qg5 40.Qc7 g3 41.Nf5 Qe3 42.Ke3 Rf7 43.Qc8 Rf8 44.Qf8) 40.Ra8 (40.Qb8 Kg7 41.Nf5 Kg6 42.Rg7 Kf5 43.Qe5) 40...Kg7+– 41.Nd5 (41.Qc7 g3 42.Kd2 Qh2 43.Kc3+–) 41...Qd5+= 42.Ra7 (42.Qg4 Rg6 43.Ra7 Kh8 44.Qc8 Rg8=) 42...Rf7 43.Qg4 Kf8 44.Qc8 Kg7 45.Rf7 Qf7 46.Qg4 Qg6 47.Qg6 Kg6 48.Kf2 Kg5 49.Kg3 h5 50.d5 Kf5 51.Kh4 Ke5 52.Kh5 Kd5 53.Kg4 Kc4 54.Kg5 Kd3?? (better is 54...Kc5=) 55.Kf4+– Ke2 56.Ke4 Kd2 57.Kf4 Kd3 58.e4 Kc4 59.e5 Kc5 60.e6 (60.Kf5 Kc6+–) 60...Kc6?? (60...Kd6 61.Kf5 Ke7 62.Kg6=) 61.e7 (better is 61.Ke5+–) 61...Kd7= 62.e8Q Ke8 ˝–˝. slavisa99 – step8, Live Game Caissa's Web, 2004.

5.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 c5 5.e3).

5.f4 cb4 6.Nf3 a5 7.Be2 Nc6 8.0–0 Bd7 9.Ne5 ba3 10.Na3 Be7 11.Nd7 Qd7 (worse is 11...Kd7 12.c4+/–) 12.Bb5 0–0 13.Rf3 Ne4 14.Rh3 Bf6 15.Bf6 Nf6 (15...gf6?? 16.Qg4 Ng5 17.fg5+–) 16.c3 h6 17.Ba4 Ra6 18.Rb1 Qe7 19.Nb5 e5 20.fe5 Ne5 21.Nd4 Ne4 22.Rb5 Rf6 23.Qc1 Nd3 24.Qc2 Ndc5 25.Nf3 (25.Bb3 Nb3 26.Rb3 a4–+) 25...Na4 26.Qa4 Nc3 27.dc3 (27.Qa5 Nb5 28.Qb5–+) 27...Qe3 28.Kh1 Qc1 29.Ng1 Rf1 30.Qd4 Re8 31.g4 (31.Rb7 Rg1! 32.Qg1 Re1 33.Rb8 Kh7 34.Rh6 gh6 35.Rh8 Kh8 36.h4 Rg1 37.Kh2 Qf1 38.Kg3 Rg2 39.Kh3 Qf3; 31.Ra5 Rg1! 32.Qg1 Re1 33.Ra8 Kh7 34.Rh6 gh6 35.Rh8 Kh8 36.h3 Rg1 37.Kh2 Qe1 38.h4 Rh1) 31...Ree1 32.Rg3 Rd1 33.Qa7 (33.Rd5 Rd4 34.Rd4–+) 33...d4! 34.Qd4 (34.cd4 Rg1 Mate attack) 34...Rd4 35.cd4 Qc6 36.d5 Qb5 37.Kg2 Rb1 38.g5 Rb2 39.Kh1 Qd5 40.Nf3 hg5 41.Rh3 (41.h4 g4! 42.Rg4 Qf3 43.Kg1 Qd1) 41...g4 0–1. gluv51 (2055) – marekt (2125), gameknot.com, 2015.

5.b5 a5

6.a4 b6 7.Nf3 Nbd7 8.c4 Bb7 9.cd5 ed5 10.Be2 Bd6 11.0–0 0–0 12.d3 Qe7 13.Nbd2 Rac8 14.Rc1 Rfd8 15.h3 Ne5 Black intends c4 16.d4 Ng6 (better is 16...Nf3!? 17.Bf3 c4=) 17.dc5+= bc5 18.Nb3 c4 19.Na5 Bb4 20.Bf6 gf6 21.Nb7 Qb7 22.Nd4 Ne5 23.Bg4 Ra8 24.Bf5 Bf8 25.f4 Ng6 26.Nc6 Bc5? (better is 26...Rd6+–) 27.Nd8 Rd8 28.Qf3 (better is 28.Rc4! Be3 29.Kh1 Qb8+–) 28...Qa7 29.Ra1 Be3 30.Kh1 d4 31.Bg6 hg6 32.Rfe1 (32.Qc6 c3+–) 32...c3 33.Qd1?? (better is 33.f5!? Kg7 34.a5+–) 33...Bf4 (33...d3 34.Qf3 d2–+) 34.Rf1 Be5 35.a5 (better is 35.Qd3!?+/–) 35...d3+= 36.b6 Qa6 37.Ra2 Rd6 38.Qb1?? (better is 38.Ra3+=) 38...c2–+ 39.Qc1 d2 40.Rc2 dc1Q 41.Rcc1 Qa5 42.b7 Rb6 0–1. Hal1958 – Victorabiodun03, playchess.de, 2006.

6.a4 Nbd7 7.f4 Bd6 8.Nf3 0–0 9.Be2 Qe7 10.Ne5 Ne8 11.0–0 f6 12.Nd7 Qd7 13.Bf3 Bb8 14.c4 d4 15.g3 Nd6 16.Qb3 Nf5 17.e4 Ne7 18.d3 g5 19.fg5 fg5 20.Nd2 Ng6 21.Bh5 Qg7 22.Bg6 Qg6 23.Rf8 Kf8 24.Rf1 Kg8 25.Qd1 (better is 25.Qa3!? b6 26.Bd4+/–) 25...g4 26.Qe2 Be5 27.Bc1 b6 28.Nb3 Bg7 29.Qd2 h6 30.Na1 e5 31.Nc2 Be6 32.Ne1 Rf8 33.Rf8 Bf8 34.Ng2 Qg7 35.Nh4 Kh7 36.Kg2 Qf6 37.Kg1 Be7 38.Qg2 Qf7 39.Nf5 Bf5 40.ef5 Qf5 41.Qb7 Qe6 42.Qe4 Kg7 43.Bf4 Exerts pressure on the backward pawn 43...Bf6 44.h3? (better is 44.Kg2!?+=) 44...gh3–+ 45.Kh2 Qg4?? (better is 45...h5–+) 46.Bh6!+– (46.Bh6 Kh6 47.Qg4+–) 1–0. Tasic,Zoran (2155) – Tasic,Vladimir (2240), SRB Central–ch, 2008.

5.b5 a6

6.a4 ab5 7.ab5 Ra1 8.Ba1 Qa5 9.Bc3 Qb6 10.d4 (Better is 10.Bf6!? gf6 11.c4=) 10...c4–/+ 11.Na3?? (Better is 11.Nd2–/+) 11...Ba3–+ 12.Nf3 Qb5 13.Ne5 0–0 14.Be2 Bb4 15.Nc4 (15.Bb4 Qb4 16.Qd2 Qd2 17.Kd2 Ne4 18.Ke1–+) 15...Bc3 16.Kf1 (16.Nd2 Qa5 17.Bf3–+) 16...dc4 17.g3 Ne4 18.Bf3 f5 19.Be4 fe4 20.Kg2 b6 21.Rf1 e5 22.d5 Bb7 23.d6 Rd8 24.f4 ef3 25.Kg1 Qc5 26.d7 Rd7 27.Qd7 Nd7 28.Rf3 Bf3 (29.h3 Qe3 30.Kf1 Qe1#) 0–1. badboy1221 – Madrid, Live Game Caissa's Web, 2004.

6.a4 ab5 7.ab5 Ra1 8.Ba1 Bd6 9.Nf3 Nbd7 10.Be2 Nb6 11.0–0 0–0 12.d3 Qc7 13.c4 e5 14.h3 d4 15.e4 Ne8 16.Bb2 f5 17.Bc1 fe4 18.de4 Be6 19.Bg5? Nc4–/+ 20.Bc4 Bc4–+ 21.Qc2? Be6 22.Bh4 c4 23.Nbd2 Nf6?? 24.Rc1? Rc8 25.Ng5–/+ Bf7 26.Nf7 Qf7 27.Nc4? Bb4?? 28.Qb3 Bc3=+ 29.Qa4?? Qc4–+ 30.Qc4 Rc4 31.Kf1 Ne4 32.f3 Nc5 33.Be1 Nd3 34.Bc3 dc3 35.Rc2 Nb4 36.Ra2 c2 37.Rc2 Rc2 38.Kg1 Nd3 39.Kh2 Nf4 (40.Kg1 Rg2 41.Kf1 Rb2–+) 0–1. Onkel_Luis – gemini (1675), ICC, 2003.

6.a4 ab5 7.ab5 Ra1 8.Ba1 Bd7 9.Nf3 Qa5 (9...c4 10.d3 Qa5 11.Bc3=) 10.Nc3 (better is 10.Be5!? Qd8 11.Be2+=) 10...Bd6+= 11.Be2 0–0 12.0–0 c4 (12...e5 13.d3 d4=) 13.Qb1+= Rc8 14.d3 (14.Rc1 e5=) 14...Bb4 (better is 14...cd3 15.cd3 Rc3 16.Bc3 Qc3–/+) 15.Qb2?? (better is 15.Na2 Be7 16.dc4 dc4 17.Nc3=) 15...Bc3 (15...cd3!? 16.Bd3 Bc3 17.Qb1–+) 16.Qc3 Qc3 17.Bc3 Bb5?? (better is 17...cd3 18.Bd3 Rc3–+) 18.Bf6–/+ gf6 19.Rb1 Ba6 (19...cd3 20.Bd3 Bd3 21.cd3–/+) 20.Nd2 (20.dc4!? dc4 21.Nd4+=) 20...cd3–/+ 21.Bd3 Nd7 22.Nf3 Ne5 23.Ne5 fe5 24.f3 Kg7 25.Kf2 Kf6 26.Bh7 Kg5 (better is 26...e4!? 27.fe4 Rc2 28.Kg3 Kg7 29.ed5 Kh7–+) 27.Bd3= f5 28.Rb2 Rc5 29.g3 Rc3 30.h4 Kh5 31.Ba6 ba6 32.Ra2 Rc6 33.Ke2 e4 34.f4 Kg4 35.Kf2 Rd6 (35...a5 36.Ke2–/+) 36.c3 (36.Ra3 Rb6+=) 36...Kh5 37.Ra3 Rb6 38.Kg2 Kg4 39.Ra2 a5! 40.Kf2 (40.Ra5 Rb2 Deflection) 40...Rb5 41.Kg2 (41.Rc2–+) 41...Rb3 42.Ra5 Rc3 43.Ra6 (43.Kf2 Rc2 44.Kf1 Kg3 45.Ra3–+) 43...Re3 44.Re6 Rg3 45.Kf2 Kf4 46.h5 Rh3 47.h6 d4 48.Kg2 Rh5 49.Rd6 d3 50.Kf2 Rh2 51.Ke1 Kg5 0–1. Hal1958 – Larxs, playchess.de, 2004.

6.a4 Bd6 7.c4 0–0 8.Nf3 ab5!? 9.ab5 Ra1 10.Ba1 Nbd7 –/+.

6.a4 Bd6 7.c4 0–0 8.Nf3 Bd7 9.Be2 (9.Nc3 Be8=) 9...dc4 (9...ab5 10.ab5 Ra1 11.Ba1=) 10.Bc4 (10.Nc3 ab5 11.ab5 Ra1 12.Qa1 Bc8=) 10...ab5 11.ab5 Ra1 12.Ba1 Re8 (12...Be8 13.Bf6 Qf6 14.Qc2=) 13.0–0 e5 (13...Bc8 14.Na3+=) 14.Qb3 (14.Ng5!? Rf8 15.Nc3+/–) 14...Be6+= 15.Be6 Re6 16.d3 (16.Ng5 Re7 17.Nc3 Nbd7+=) 16...h6 17.e4 Nh5 (17...Nbd7 18.Nbd2=) 18.Nc3 (18.Nbd2 Nd7+=) 18...Rg6 (18...Nf4!?=) 19.Nd5+= Nd7 20.Bc3 Nhf6 (20...Nf4 21.Nf4 ef4 22.Qd5+=) 21.Ra1+/– Nd5 22.Qd5 e5 draws heavy fire 22...Qf6? (22...Qb8!?+/–) 23.Ne1 (23.Kh1 Qe6 24.Qb7 Qg4+–) 23...b6 (23...c4 24.dc4 Nb6 25.Qb7+/–) 24.Qb7 (24.Ra7!? Nf8 25.Rb7+–) 24...Qe6+/– 25.Ra8 Kh7 26.Qc8 Nf8 27.Qe6 Ne6 28.Ra6 Bc7 29.Nf3 Ng5? 30.Ng5+– hg5 31.Ra7 Bd8? 32.Rd7 Bf6 33.Rf7 g4 34.Rd7 Bg5 35.Rd5 Bf6 36.Be5 Be5 37.Re5 Rd6 38.Rd5 Rd5 39.ed5 Kg6 40.f3 gf3 41.gf3 Kf6 42.f4 Ke7 43.Kf2 Kd6 44.Ke3 Kd5 45.h3 c4 46.d4 ˝–˝. Potter,Matthew – Lugo,Ruperto (1780), Victorian–ch U20, 2004.

6.a4 Bd6 7.c4 0–0 8.Nf3 Nbd7 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Bc3 Qa2 13.d3= e5 14.0–0 d4 15.Be1 Nb6 16.Nbd2 Bd7 17.Ng5= h6 18.Nge4 Ne4 19.Ne4 Be7 20.ed4 ed4 21.Bf3 Be6 22.Nd2 Qa8 23.Nb3 Qa4 24.Na5 Qd1=+ 25.Bd1 Bf5 26.Bc2 Ra8 27.Bb1 Na4–/+ 28.Nb7 Nc3 29.Bc3 dc3 30.Rd1 Ra1–+ 31.Rf1 Ra7 32.Nc5 Bc5 33.h3 Ra1 34.g4 Rb1! 35.Rb1 Bd3 (36.Re1 c2–+ (36...Bc4?! 37.b6–+)) 0–1. Urgelles Paumier,A – Chavez Gonzales,Antonio, corr Carlos M de Cespedes, 2002.

6.a4 Bd6 7.f4 0–0 +=.

6.a4 Bd7 7.c4 Be7 8.Nf3 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 0–0 12.Nc3 Bc8 13.0–0 Nbd7 14.Qc2 Qc7 15.Rd1 Nb6 16.Bf1 Bd7 17.d4 cd4 18.Nd4 Rc8 19.Qb3 e5 20.Nf3 Be6 21.Qb1 Bc4 22.Ne2 Bd6 23.e4 Qc5 Attacking the isolated pawn on b5 24.h3 Bb8 25.Nh4 Ba7 26.Nf5 Nbd7 27.Ne3 Qb6 28.Rc1 Qe6 29.Ng3 Be3 30.fe3 Nb6 31.Bc4 Nc4 32.Qd3 Ne8 33.Nf5 g6 34.Ne7 Qe7 35.Rc4 Rc4 36.Qc4 Kg7 37.Qd5 f6 38.Bc3 Qf7 39.Qc5 Qc7 40.Qb4 Nd6 41.Kf2? Kf7 42.Qb3 Qc4 43.Qc4 Nc4 44.Bb4 Ke6 45.Ke2 Nd6 46.Kd3 Nb5 47.Kc4 Nd6 48.Bd6 Kd6 49.Kb5 Kc7 50.Kc5 b6 51.Kb5 Kb7 52.g4 g5 53.Kb4 Kc6 54.Kc4 b5 55.Kb4 Kb6 56.Kc3 Kc5 57.Kb3 b4 58.Kc2 Kc4 59.Kb2 Kd3 60.Kb3 Ke4 (60...Ke4 61.Kb4 Ke3–+) 0–1. Wiszniowski,Eugeniusz (1780) – Wolochowicz,Piotr (2045), Warszawa ch41 op A Poland, 2008.

6.a4 Be7 7.Nc3 e5 A) 8.Nf3 e4 (8...Nbd7 9.ba6 ba6 10.Ne2 Qc7 11.Ng3 e4 12.Nh4 g6 13.c4 0–0) 9.Ne5 Nbd7 10.Ne2 0–0 11.Nf4 Ne5 12.Be5 Ng4 13.Bb2 Qd6; B) 8.Nce2 Nbd7 (8...Bd6 9.Ng3 0–0 10.Be2 e4 11.Nh3 Nbd7 12.ba6 ba6 13.0–0 Ne5) 9.Ng3 0–0 10.Be2 g6 11.Nf3 e4 12.Ng5 h6 13.Nh3 h5.

6.a4 Be7 7.c4 0–0 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 b6 (10...Nbd7 11.Bb2 Qa5 12.Qc2 Nb6 13.Bc3 Qa7) 11.Be2 Bb7 12.0–0 (12.Bb2 Nbd7 13.cd5 ed5) 12...Nbd7 13.d3 (13.cd5 ed5) 13...Bd6 (13...dc4+=) 14.Nbd2 Bb8 15.g3 Qc7 16.Qc2 Re8 17.Rd1 e5 18.cd5 Nd5 19.e4 Ne7 20.Qb3 Ng6 21.h4 Qd8 22.Nc4 Nf6 23.Ng5 Nh8 24.Ne3 h6 25.Nf3 Ng6 26.Bc3 Qe7 27.Nf5 Qe6 28.Qb2 Nd7 29.Nh2 Ne7 30.Bg4 Nf5 31.Bf5 Qd6 32.Qe2 Nf6 33.Bd2 Rd8 34.Ng4 Ng4–/+ 35.Qg4 Qd3 36.Kh2+= Qc2?? 37.Bh6 Qf2 38.Kh3 g6 39.Rd8 Kh7 40.Bg6! fg6 41.Qd7 Kh6 42.Rh8 (42.Rb8?! Qf1 43.Kh2 Qf2 44.Kh3 Qf1 45.Kg4 Qe2 46.Kh3 Qf1=; 42.Qb7?! Qf1 43.Kh2 Qf2 44.Kh1 Qf1 45.Kh2 Qf2 46.Kh1 Qf1 47.Kh2=) 1–0. Wiszniowski,Eugeniusz (1770) – Safanowski,Tomasz (1790), I Zimowe granie w Hetmanie_A Poland, 2010.

6.a4 Be7 7.c4 ab5 8.ab5 Ra1 9.Ba1 Qd6 10.Nf3 Nbd7 11.Qc2 0–0 12.Bb2 b6 13.Nc3 Bb7.

6.a4 Bd7 7.c4 Be7 8.Nf3 0–0 9.d4 cd4 10.Bd4 (worse is 10.Nd4 Bb4 11.Bc3 Bc3 12.Nc3 dc4 13.ba6 Qa5–/+ (13...Ra6?! 14.Bc4 e5 15.Ndb5=)) 10...Bb4 11.Bc3 Bc3 12.Nc3 Qa5 13.Qd2 dc4 14.Bc4 (14.ba6!? Qa6 15.Ne5+=) 14...Rc8–+ 15.Ne5 Qc7 (better is 15...Rc5!? 16.Nd7 Nbd7–+ (16...Rc4?! 17.Nf6 gf6 18.Rc1+=)) 16.f4 ab5 17.Nb5 Bb5 18.Bb5 Rd8 19.Qb2 Nd5 20.Ra3 Qc5 21.Ke2 Rc8 22.Nc4 Nc6 23.Rb1? (better is 23.Rc1!?+=) 23...Na7–+ 24.Rb3? (better is 24.Kf3–+) 24...Nb5 25.ab5 (25.Rc1 Ra4 26.Rb5 Qc6 27.Rb7 Rc4 28.Rc4 Qc4 29.Kf3 Nf6–+) 25...Qc4 26.Kf3 Nc3 27.Rb4 (27.Qc3 Qc3 28.Rc3 Rc3 29.Rb4–+) 27...Qd5 28.e4 Qd3 29.Kg4 Ra2 0–1. Bartle,Georg (1805) – Funk,Paul (2155), Baden–ch Seniors, 2009.

6.a4 Be7 7.Nf3 c4 8.d3 ab5 9.ab5 Ra1 10.Ba1 Qa5 11.Nc3?? (better is 11.Bc3 Qb5 12.dc4 dc4 13.Nbd2=) 11...Bb4–+ 12.Kd2 Ng4 13.Qe1 Nf2! 14.dc4 (14.Qf2 Bc3 Double attack (14...Qa1 Deflection; 14...Qa1 Overloading)) 14...Ne4 (better is 14...Nh1!? 15.cd5 ed5 16.Bb2–+) 15.Kd3 Nd7 16.Bb2 (16.cd5 ed5 17.Ke2 Nc3 18.Bc3 Bc3–+) 16...Ndc5 17.Kd4 (17.Ke2 Nc3 18.Bc3 Bc3–+) 17...dc4 (better is 17...Na4 18.Na4 Be1–+) 18.Kc4 (18.Qa1 Bc3 19.Bc3 Qb5 20.Qa5–+) 18...Na4 (18...Bc3 19.Qc3 Qa2 20.Qb3 Nb3 21.cb3 Qb2 22.Kd3 f5 23.g4 Bd7 24.gf5 ef5 25.Nd4 Qd2 26.Kc4 Qc3 27.Kd5 Qc5) 19.Qa1 Nb2 20.Qb2 Bc3 (20...Nc3?! 21.Qb4 Qb4 22.Kb4 Nd5 23.Kc5 Ne3 24.Bd3–/+) 21.Qb3 (21.Qb1 Bd7 22.Kd3 f5–+) 21...Qc7 (better is 21...e5 22.Ng5 Nd2 23.Kd3 Bf5 24.Ke2 Nb3 25.cb3–+) 22.Kd3 Nc5 (22...Nc5 23.Kc3 Nb3 24.Kb3 Qc5–+) 0–1. Dos Anjos,Diovana F – Sakada,Carolina C (1855), Sao Jose dos Pinhais BRA, JOJUPS (w), 2012.

6.ba6 Na6 7.c4 Nc7 8.Qb3 Be7 9.Nf3 0–0 10.d4 (10.Be5 Ng4 11.Bc7 Qc7 12.cd5 ed5=) 10...b5–/+ 11.cd5 (11.cb5 c4 Passed pawn) 11...c4 (11...Qd5?! 12.Qd5 Nfd5 13.dc5 Bc5 14.e4=) 12.Qc2 ed5 13.Nbd2 Bg4 14.Ne5 Bh5 15.g3 Bd6 16.Bg2 b4 (16...Qe7!?–/+) 17.ab4= Ra1 18.Ba1 Bb4 19.0–0 Bd2 20.Qd2 Qd6 21.Rb1 Bg6 22.Ng6 hg6 23.Bc3 Ra8 24.h3 Ne6 25.Qb2 Qa3 26.Qb7 Ra7 (26...Nd8 27.Qb4 Nc6 28.Qc5 Qc3 29.Qc6=) 27.Qc8 (27.Qb8 Kh7+=) 27...Kh7= 28.Rb8 (28.Ra1 Qf8 29.Qf8 Ra1 (29...Nf8?? 30.Ra7 Ne6 31.Rf7+–) 30.Ba1 Nf8=) 28...Kh6 (28...Qc1!? 29.Kh2 g5–/+) 29.Qh8 (29.Bb2 Qa5 30.e4 Qe1 31.Kh2 Qf2 32.Qh8 (32.ed5 Ng5 33.h4 Nf3 34.Kh3 Ng1 35.Kh2 Ne2 36.Qh8 Nh7–+) 32...Nh7 A) 33.ed5 Neg5 (33...Nd4?! 34.Bd4 Qd4 35.Qd8–/+) 34.h4 Nf3 35.Kh3 Ng1 (35...Nd4 36.Bc1 g5 37.Rb6 f6 38.Bg5 Kg6 39.Qe8 Rf7 40.Be3 Ng5 41.hg5 Qe3 42.Qe3 Nf5 43.Be4 Re7 44.Bf5 Kf5 45.Qf4 Kg6 46.gf6 Re4 47.f7 Kh7 48.Qe4 g6 49.Qg6 Kh8 50.f8Q) 36.Kh2 Ne2–+; B) 33.Bc1 g5 34.Rb2= (34.ed5? Nd4 35.h4 Nf3 36.Kh3 Nh4–+)) 29...Nh7+= 30.Bb2 Qd3 (30...Qa5 31.Bf1–/+) 31.Qc8 (31.Bd5 c3 32.Bc3 Qc3 33.Rb1+=) 31...Rc7+= Black prepares the advance c3 32.Qa6 Qd1 33.Kh2 c3 34.Bd5?? (better is 34.Qa1 Qc2 35.Bc1 Qf2 36.Qa5+=) 34...cb2–+ 35.Rb2 Rc1 36.h4 Nf6 37.Bg2?? Ng4 38.Kh3 Nf6 39.Qe2 Qa4 40.Ra2 Qb3 41.Rb2 Qc3 42.d5 Nc5 43.Qd2 Qc4 44.e4= Kh7 45.Rb4 Qc2 46.Qe3?? Nd3–+ 47.e5 Nf2 48.Qf2 Qf2 49.ef6 Rc2 50.Be4 Re2 51.d6 Re3 52.Bg6 fg6 53.Rg4 Qf1 54.Kh2 Re2 0–1. Enxtuul,A (1975) – Arnetta,Marianna (2000), 1st WMSG Rapid Team w, Beijing CHN, 2008.

6.c4 b6 7.Nf3 (7.Qa4 Bd6+=) 7...Be7 (7...Bd6 8.Nc3+=) 8.Be2 (8.Nc3 0–0+=) 8...0–0 (8...dc4 9.Nc3 Bb7=) 9.Nc3 (9.cd5 Nd5 10.Nc3 Bb7+=) 9...ab5 (9...d4 10.Na4 d3 11.Bf1+=) 10.cb5 (10.Nb5 dc4 11.Bc4 Nc6=) 10...Nbd7 (10...d4 11.Na4 d3 12.Bf1+=) 11.Qc2 (11.d4 c4+=) 11...c4 (11...Bb7 12.0–0+=) 12.0–0 (12.d3 cd3 13.Bd3 e5+=) 12...Nc5 (12...e5 13.a4+=) 13.a4 (13.d3 cd3 14.Bd3 Qd6=) 13...Nb3 (13...Bd6 14.d3 cd3 15.Bd3+=) 14.Ra2= Bd7 (14...Bd6 15.d3 cd3 16.Bd3=) 15.Nd4 (15.d3 cd3 16.Bd3 Nc5=) 15...Nc5 (15...Nd4 16.ed4 Qc7 17.d3+=) 16.d3= cd3 17.Bd3 Nd3 (17...Bd6 18.Rc1+=) 18.Qd3= Qc7 19.Rc1 Ng4 (better is 19...Rfc8=) 20.Nd5?? (better is 20.Nf3 Rfc8 21.Raa1=) 20...Qh2–+ 21.Kf1 ed5 22.Nf3 (22.Nc6 Bf6 23.Rc2 Nf2 24.Qd5 Be6–+) 22...Qh1 23.Ke2 Qg2 24.Rf1 Bc5 25.Ke1 (25.Ne1 Qe4 26.Qb3–+) 25...Qf3 26.Qc3 d4 27.ed4 Rfe8 28.Kd2 Qe2 0–1. lapinagile – eddieteijeiro (2125), net–chess.com, 2008.

6.c4 Bd7 7.a4 dc4 8.Bc4 ab5 9.Bb5 Bb5 10.ab5 Nbd7 11.Ra8 Qa8 12.Nf3 Bd6 13.Na3 0–0 14.Nc4 Bc7 15.Qc2 Nd5 16.0–0 Rd8 17.Ng5 N7f6 18.b6 Bb8? (better is 18...Bd6+=) 19.Ra1+– (19.Ra1 Bh2 20.Kh2+–) 1–0. marekt – bowserreborn, internet, 2013.

6.Nf3 Bd6 7.ba6 ba6 8.c4 Nc6 9.cd5 ed5 10.Be2 d4 11.ed4 Qb6 12.Qa4 Bd7 13.Qc2 (13...cd4 14.0–0–/+). thedesertfox (2100) – xxwidowmakerxx (2000), net–chess.com, 2004.

6.Nf3 Bd6 7.c4 ab5 8.cb5 c4 (8...Nbd7!?+=) 9.d3= cd3 10.Bd3 0–0 11.0–0 Nbd7 12.Qc2 e5 13.Be2 Re8 Black prepares the advance e4 14.Nc3 Nc5 Black plans e4 15.Rfd1 e4 16.Nd4 Ng4 (16...Qc7 17.h3=) 17.h3 Nf2? (better is 17...Nf6=) 18.Kf2+/– Qh4 19.Kg1 Qg3 20.Nd5?? (20.Kf1 Bh3 21.Bh5+=) 20...Bh3–/+ 21.Bf1? (better is 21.Bf3 ef3 22.Nf3–/+) 21...Qh2–+ 22.Kf2 Bg3 23.Ke2 Bg2 (23...Bg2 24.Kd2 Bf1 25.Kc1 Qc2 26.Kc2 Bd3 27.Kd2 Be5–+) 0–1. poisoned_prawn – AsceticKingK9, ChessWorld.net, 2014.

6.Nf3 Bd6 7.Be2 0–0 8.0–0 Nbd7 9.c4 e5 10.cd5 e4 11.Ng5 h6 12.Nh3 ab5 13.d3 ed3 (13...Nd5 14.de4 Be5 15.Be5 Ne3 16.fe3 Ne5 17.Nf2+/–) 14.Bd3 Nd5 15.Qg4? (better is 15.Bb5 N7f6 16.Bc4–/+) 15...Ne5 16.Qe2? (16.Qg3 Ng4 17.f4 Nde3 18.Re1–+) 16...Bh3 17.gh3 Ne3! (17...Nd3?! 18.Qd3 Qg5 19.Kh1–+) 18.Qe3 (18.Qe3 Nc4 Double attack (18...Nc4 Decoy); 18.fe3 Nd3 Combination) 18...Nd3 19.Qe2 (19.Bc3–+) 19...Re8 20.Qc2 (20.Qg4 Nb2 21.Nc3–+) 20...Qg5 21.Kh1 Ne1 22.Rg1 Qd5 23.f3 Nc2 24.Nc3 Qf3 25.Rg2 Ne1 0–1. Neumann,Frank (1650) – Ould Ahmed,Samy (2235), remoteschach.de, 2008.

6.Nf3 Bd7 7.a4 Be7 8.c4 0–0 9.Nc3 Qc7 10.Qc2 Bc8 11.Bd3 a5 12.Ne2 Nbd7 13.g4 dc4 14.Bc4 Nb6 (better is 14...Ng4!? 15.Rc1 Nge5 16.Ne5 Ne5–/+) 15.Bd3 Nbd5 16.g5 Nb4 17.Qb1 Nd3 18.Qd3 Nd5 19.Qc4 Nb4 20.Nf4 Rd8 21.Qc3 f6 22.Ke2 (22.Rg1 Kf8+=) 22...e5 23.Qc4 Kf8?? (better is 23...Kh8 24.Ne6 Be6 25.Qe6 Nd3–/+) 24.g6+– hg6 25.Ng6 Ke8 26.Qg8 Kd7 27.Qg7 Qd6 28.Ne7 (better is 28.Be5 Qd3 29.Ke1 Nc2 30.Kd1+–) 28...Qe7+/– 29.Qe7 Ke7 30.Rhg1 Kf7 31.Rac1 (31.d4 Bf5 32.Ra3 ed4 33.ed4 Nc2=) 31...Bf5 (better is 31...Nd3 32.Rb1 Be6+=) 32.Rc5+/– Rdc8 33.Rgc1 Rc5 34.Rc5 Bg4 35.Rc4 Rg8 36.Rc7 Ke6 37.Rb7?? (better is 37.h3 Bh3 38.Rb7+–) 37...e4+= 38.Rb6 Kd5 39.d4 (better is 39.Rf6 Nd3 40.Kd1+=) 39...Bf3–+ 40.Kd2 Rg2 (better is 40...Kc4 41.Rf6 Rg2 42.Rf3 ef3–+) 41.Kc3 Rf2 (worse is 41...Rh2 42.Ba3 Rf2 43.Bb4 ab4 44.Kb4 Rb2 45.Ka5–/+) 42.Rf6 Na2 43.Kb3 Bd1 44.Ka2 Rf6 45.Ka3 Rf3 46.Bc1 Rf2 47.h4 Rh2 48.h5 (48.Bb2–+) 48...Rh5 (worse is 48...Bh5 49.Bb2–+) 49.Bd2 Rh3 50.b6 Kc6 51.b7 Kb7 52.Ba5 Re3 53.Kb4 Rb3 54.Kc5 Ra3 55.d5 Ra4 56.Bb4 (56.Bd2 Ra3 57.Kb4 Rd3–+) 56...Rb4! 57.Kb4 Bc2 58.Kc3 Bd3 59.Kd4 Kc7 60.Ke5 (60.d6 Kd6 61.Ke3–+) 60...e3 61.Ke6 (61.Kd4 e2 62.Kd3 e1Q–+) 61...Bb5 62.Ke7 e2 (62...e2 63.Kf6 e1Q 64.Kf5 Bd3 65.Kf4 Kd6 66.Kf3 Be2 67.Kg2 Qf1 68.Kg3 Qf3 69.Kh2 Bf1 70.Kg1 Qg2#) 0–1. Aslan,Ziver – Tunc,Cihan, ch–TUR Kemer–Antalya TUR, 2011. (=1.Nf3 Nf6 2.b4 e6 3.a3 c5 4.b5 d5 5.e3 a6 6.Bb2 Bd7)

6.c4 ab5

7.cb5 c4 8.d3 Qa5 9.Nc3 (9.Nd2 cd3 10.Bd3 Nbd7=) 9...cd3 10.Bd3 Nbd7 (10...e5 11.Nge2=) 11.Nf3 Nc5 (11...Bd6 12.0–0=) 12.0–0 Be7 (12...Nfe4 13.Be4 Ne4 14.Qd3=) 13.Qc2 (13.Bc2 0–0=) 13...Bd7 (13...Nd3 14.Qd3 0–0 15.a4=) 14.Nd2 (14.Be2 0–0=) 14...Qb6 (14...Nd3 15.Qd3 0–0 16.Rfe1+=) 15.Nb3 (15.Rfc1 Nd3 16.Qd3 0–0=) 15...Nd3 16.Qd3 0–0 (16...Qc7 17.Nd4+=) 17.Qd4 (17.a4 Rfc8=) 17...Qd4+= 18.ed4 (18.Nd4 Rfc8+=) 18...Rfc8–/+ 19.Rfc1 Ne4 (19...Bd6 20.a4–/+) 20.a4 (20.Ne4 de4 21.a4 b6=) 20...Nc3 (20...Bg5 21.Ne4 Bc1 (21...de4?! 22.Rc8 Bc8 23.Bc1=) 22.Rc1 Rc1 23.Bc1 de4–+) 21.Rc3+= Rc3 22.Bc3 Rc8 23.Bd2 Rc2 (23...b6 24.Bf4+=) 24.g3 (24.Rc1!? Rc1 25.Bc1=) 24...Bd6 (24...Rb2 25.Rc1 Kf8 26.Rc3+=) 25.Be3+= Bb4 (25...f6 26.Nc5 Bc5 27.dc5=) 26.Rc1 Rc1 (26...Rc4 27.f4+=) 27.Bc1= b6 (better is 27...f6=) 28.Bf4+/– White fights for the Initiative 28...Kf8 (28...e5 29.Be5 Bf5 30.Bc7+–) 29.Bc7+– Ke7 30.Bb6 Kd6 (30...Bc3 31.f4+–) 31.Bc5 Bc5 32.Nc5 Bc8 (32...Be8 33.b6+–) 33.f4 f6 (33...g5 34.a5 gf4 35.gf4+–) 34.Nd3 (34.a5 Kc7+–) 34...Kc7 35.a5 Kb7 (35...Bd7 36.b6 Kc6 37.f5+–) 36.Kf2 (36.Nc5 Kc7+–) 36...Kc7 37.Ke3 Kb7 (37...Bd7 38.b6 Kc6 39.Nb4 Kb7 40.f5+–) 38.b6 (38.Nc5!? Kc7+–) 38...Kc6 39.Nc5 (39.Nc1 Ba6+–) 39...h6 (39...e5 40.g4+–) 40.h4 g5 (40...g6+–) 41.hg5 hg5 42.fg5 fg5 43.b7 Bb7 44.Nb7 Kb7 45.Kf3 Ka6 46.Kg4 Ka5 47.Kg5 Kb4?? (better is 47...e5 48.de5 d4+–) 48.Kf4 Kc4 49.Ke5 Kc3 50.g4 Kc4 51.g5 Kc3 52.g6 (52.g6 Kc4 53.g7+–) 1–0. Kuipers,Stefan – Kleijn,Christov, Hengelo U12 open, 2002.

7.cb5 Bd6 8.Nf3 0–0 9.a4 Bc7 =.

7.cb5 Bd6 8.Nf3 0–0 (8...Nbd7 9.Bf6 Qf6 10.Ra2+=) 9.Qc2 (9.a4 Bc7=) 9...Qe7 (9...Nbd7 10.Nh4=) 10.Be2 e5 11.d3 Bf5 Black prepares e4. Black has an active position 12.0–0 (12.Nh4 Be6+=) 12...c4 This push gains space 13.Nh4 Bd3 14.Bd3 cd3 15.Qd3 e4 Black threatens to win material: e4xd3. 16.Qd4 Qe6 17.h3? Controls g4 (better is 17.f4+= is the best option White has) 17...Nbd7–+ 18.f4 ef3! Deflection: h3 19.Rf3 (19.Rf3 Ne5 Combination; 19.gf3 Qh3 Deflection; 19.Nf3 Bc5 Combination) 19...Be5 20.Qd2 (20.Qb4 Rfc8 21.Be5 Ne5–+ (21...Qe5?! 22.Qd4–/+)) 20...Bb2 (better is 20...Ne4 seems even better 21.Qe2 f5–+) 21.Qb2 Ne5 22.Rg3?? the final mistake, not that it matters anymore (better is 22.Rf1 Nc4 23.Qd4 Qe3 24.Qe3 Ne3 25.Rf3–/+) 22...Ne4 23.Rf3 Nf3 24.Nf3 Rfe8 25.Nd4 (25.Nbd2 does not solve anything 25...Ng3 26.Qb3 Qb6–+ (26...Qe3?! is much worse 27.Qe3 Re3 28.Kf2–/+)) 25...Qe5 (25...Qh6!? might be the shorter path 26.Qc1 Ra4 27.Qe1–+) 26.Ra2 (26.Nd2 does not save the day 26...Nd2 27.Qd2 Qe3 28.Qe3 Re3–+) 26...Ng5 27.Nc2 (27.Qf2 praying for a miracle 27...Qe3 28.Qe3 Re3 29.Rf2–+) 27...Qg3 28.Nd4 (28.Kh1 is no salvation 28...Nf3! Mate threat 29.gf3 Re6–+) 28...Qe3 (better is 28...Re3 and Black has it in the bag 29.Qe2 Re2 30.Re2–+) 29.Kh2 Qe5 (29...Qf4 keeps an even firmer grip 30.g3 Qd4 31.Qd4 Nf3 32.Kg2 Nd4 33.Rd2 Nb5 34.Rd5 Na3 35.Nc3–+) 30.g3 (30.Kh1–+ what else?) 30...Ra4 31.Ne2 Qf5 32.Ng1 h5 (better is 32...Re1 and Black can already relax 33.Nc3 Rc4 34.Nd5 Qd5 35.Qd2–+) 33.Nc3 Rc4 34.Kg2 (34.Qd2 is the last straw 34...d4 35.Nd1–+) 34...Re1 35.Qf2 Qf2 (better is 35...Rg1 and Black has prevailed 36.Kg1 Nh3 37.Kg2 Nf2 38.Rf2 Qd3–+) 36.Kf2 Rg1 37.Kg1 Rc3 38.Kg2 (38.h4 is not much help 38...Ne4 39.Ra1 d4–+) 38...Ne4 39.g4 (39.a4 doesn't get the cat off the tree 39...Rg3 40.Kh2 Rb3–+) 39...hg4 40.hg4 Rg3 41.Kf1 Rg4 (41...d4!? makes it even easier for Black 42.Re2 Rg4 43.Rc2–+) 42.Rc2 Nd6 43.b6 Nc4 (43...Nc4 44.Re2 Nb6 45.Re8 Kh7–+) 0–1. Warmowski,Pawel (2000) – Bugalski,Michal (2065), Torun op Poland, 2002.

7.cb5 Bd6 8.Nf3 Nbd7 9.Bf6 Qf6 10.Ra2 +=.

7.cb5 Nbd7 8.Nf3 b6 9.Be2 Bb7 10.Ne5 Bd6 11.f4 Qc7 Black prepares the advance c4 12.d4 c4 13.Nc3 0–0 (worse is 13...Ne5 14.fe5 Be5 15.de5 Qe5 16.Qd2+/–) 14.0–0 Ne8 (14...Ra5 15.a4+=) 15.Bg4 (15.Qc2 f6 16.Bg4 f5= (worse is 16...fe5 17.Be6 Kh8 18.fe5+=; worse is 16...Ne5 17.fe5 Be5 18.Be6 Kh8 19.de5 Qe5 20.Bf5+–)) 15...f5 (15...Be7 16.a4+=) 16.Bf3 (16.Be2 Nef6=) 16...Nef6 (worse is 16...Be5 17.fe5 Qd8 18.a4+=) 17.Qc2 Qd8 (17...Ne4 18.Ne4 fe4 19.Bg4+=) 18.h3 (better is 18.Nc4 Be7 19.Ne5+/–) 18...Ne4+= 19.Ne4 fe4 (worse is 19...de4 20.Be2 Be5 21.de5+=) 20.Be2 (20.Bg4 Qe7+=) 20...Ne5 21.fe5 Rf1 22.Bf1 Be7 23.Be2 Bc8 (23...Qe8 24.a4+=) 24.a4 Bd7 25.Bg4 Bb4 26.Bc3 Qe7 27.Qb2 (27.Kh2 Bc3 28.Qc3 Ra5=) 27...Bc3 28.Qc3 g6 29.g3 h5 30.Be2 Qg5 31.Kf2 (31.Kg2 h4 32.g4 Bb5 33.ab5 Ra1 34.Qa1 Qe3=) 31...Kh7 (31...Rf8 32.Kg2=) 32.Qb4 (32.h4 Qe7=) 32...Qh6 (32...Bb5 33.h4 (33.Qb5 Rf8 34.Kg2 Qe3–+) 33...Qh6 34.Qe7 (worse is 34.Qb5 Rf8 35.Kg2 Qe3 36.Qd7 Kh8 37.Bc4 dc4–/+) 34...Qg7 35.Qe6=) 33.Qc3 Kg8 34.a5 Bb5 35.ab6 Rb8 36.Ke1 Qg5+= 37.g4 Qd8 38.Rb1 Ba4 39.Qa5 Bb3–/+ 40.Kd2 Qb6 41.Qb6= Rb6 42.gh5 gh5 43.Bh5+= Kh7 44.Ra1 Kh6 45.Bg4 Kg5 46.Ra7 ˝–˝. Wind,Maurits M – Boll,Peter Albertus, corr NED–Cup sf40, 1975.

7.cb5 Nbd7 8.Nf3 Bd6 9.d4 0–0 (9...c4 10.Nc3–/+) 10.Bd3 (10.dc5 Nc5 11.Be2 Qe7+=) 10...Qa5 (10...c4 11.Bc2–/+) 11.Nc3 (11.Bc3 Qc7=) 11...Ne4 (11...c4 12.Bc2+=) 12.Be4 de4 13.Nd2 f5 (13...cd4 14.Nb3 Qb6 15.Ne4+=) 14.Nc4+= White plans d5 14...Qc7 15.b6 Qc6 16.d5 (worse is 16.Nd6 Qd6 17.dc5 Qc5+=) 16...ed5 17.Nd5 (17.Qd5 Qd5 18.Nd5 Bb8+=) 17...Kh8 18.0–0 (18.Nd6 Qd6 19.Nc7 Qb6 20.Na8 Qb2+=) 18...Bb8= 19.f3 Ra4 (19...Qh6 20.f4=) 20.Qc2 (20.Qb3 Ra6 21.fe4 fe4+=) 20...ef3 21.gf3 White gets in control (21.Rf3 Qb5 22.Nd2 Rh4=) 21...Rc4 (21...Qb5!? 22.Rfc1 Rc4 23.Bg7 Kg7 24.Qc4 Qc4 (24...Nb6?? 25.Qb5 Nd5 26.Rc5+–) 25.Rc4 Ne5 26.Rc5 Bd6–/+) 22.Qc4= Nb6 23.Nb6 Qb6 24.Rf2 Qc7 (24...Be6 25.Qc3 Qc7 26.Rc2+=) 25.Rg2 Rf7? (25...Rg8!?+=) 26.Kf2 (26.Rd1 Re7+–) 26...b5? (better is 26...f4 27.Rag1 fe3 28.Ke2 Qd6+–) 27.Qb5+– The mate threat is Qe8. 27...Kg8 (27...Bd7 28.Qc4 Qb6 29.Rb1+–) 28.Rg7! Kf8 (28...Rg7 29.Qe8 A classical mating theme) 29.Rag1 (better is 29.Rg2 Be6 30.Rb1+–) 29...Qh2 (29...Rg7 30.Bg7 Kf7+–) 30.R1g2 Qh4 31.Ke2 Rg7 32.Bg7 (better is 32.Qc5 Ke8 33.Qc8 Qd8 34.Qd8 Kd8 35.Rg7 Bd6+–) 32...Kf7 33.Qb8 Ba6 (33...Qc4 34.Kd2 Qd5 35.Ke1+–) 34.Kd2 Qe7 (34...f4 35.Qf8 Ke6 36.Qg8 Kd6 37.Bf8 Kc7 38.Qf7 Kb6 39.Qe6 Kb5 40.Qd7 Ka5+–) 35.Be5 (35.Be5 Qd7 36.Kc1+–) 1–0. Langen,Roger – Karklins,Andrew (2345), World op, 1993.

7.cb5 Nbd7 8.Nf3=+ Bd6 9.Be2 Qc7 10.h3 b6 11.0–0 e5 12.d3 0–0 13.Nbd2 Bb7 14.Qc2 e4 15.de4 de4 16.Ng5 Rae8 17.Bc4 h6 18.Nf7 Rf7 19.Bf7 Kf7 20.Rfd1 Ne5 21.Nc4 Nd3 22.Nd6 Qd6–/+ 23.Bc3 Nd5 24.Bd2 Qf6 25.Rf1 Nf2?? 26.Rf2+– Qf2 27.Kf2 Nf6 28.Bc3 Rf8 29.Kg1 Nd5 30.Rf1 (30...Kg8 31.Rf8 Kf8 32.Qf2 Ke7 33.Bg7+–) 1–0. uno (1835) – cadu (1950), ICC, 2003.

7.cb5 Nbd7 8.Nf3 Bd6 9.Be2 e5 +=.

7.cd5 c4 8.de6 Be6 9.d3 +=.

7.cd5 Nd5 8.Bb5 Bd7 9.Bc4 Nb6 10.Be2 Bc6 11.Bf3 Qd3 12.Bc6 Nc6 (12...bc6?! 13.Nh3=) 13.Ne2 Bd6 14.0–0 0–0 15.Nbc3 (15.Nc1!? Qg6 16.Qb3–/+) 15...Nc4–+ 16.Bc1 Rfd8 17.Nb5 (17.f4–+) 17...Be5 18.Ra2? (18.Nbc3–+) 18...Nb4! 19.Nec3 (19.ab4 Qb1 Double attack (19...Ra2 Pinning; 19...Ra2 Deflection; 19...Qb1 Decoy)) 19...Na2 20.Na2 Nd2 21.Qd2 Qd2 22.Bd2 Rd2 23.Nac3 Bc3 24.Nc3 Rc2 (24...Ra3?! 25.Nb1 Rda2 26.Na3 Ra3 27.Rd1–+) 25.Nb5 (25.Nb1 Rd8–+) 25...Rb2 26.a4 Ra4 27.Rd1 (27.Nd6 b5–+) 27...Kf8 28.Nd6 (28.Nc3 Rc4 29.Nb1 Rcb4–+) 28…Rd2! (28...Rd2 29.Rb1 Rd6–+) 0–1. Hal1958 – KRAN, playchess.de, 2005.

7.cb5 Bd7

8.d4 c4 9.a4 Bb5?? (Better is 9...Ne4 10.Ne2 Qh4–/+) 10.ab5+/– Ra1 11.Ba1 Qa5 12.Bc3 Bb4 13.Bb4 (13.Qd2! Qb5 14.Bb4+/–) 13...Qb4= 14.Qd2?? (Better is 14.Nd2 c3 15.Bd3=) 14...Qb1–+ 15.Ke2 (15.Qd1 Qb5 16.Be2 Qa5 17.Kf1 b5–+) 15...Qb5 (Better is 15...Ne4 16.Qe1 Qd3 17.Kf3 Nd2 18.Qd2 Qd2–+ (18...Qf1?! 19.Qa5–+)) 16.Kf3 0–0 17.g3 h5 18.Be2 Ne4 19.Qc2 Nd7 20.Nh3 Ndf6 21.Nf4? g6 22.h3? Qe8 23.g4? Ng5 24.Kg2 hg4 25.hg4 Nfe4 26.Bf3 Kg7 27.Rb1 b5 28.Qb2? Rh8 29.Qb5? Nf3 30.Kf3 Nd2 31.Kg3 Nb1 32.Qb1 Qe7 33.g5 Qg5 34.Kf3 Qf5 35.Qb7 Qe4 36.Ke2 Rh2 37.Qc7 Qc2 38.Kf3 Qf2 39.Kg4 Rh4 40.Kg5 Qg3 0–1. slavisa3 – han1, Live Game Caissa's Web, 2004.

8.Nf3 Bd6 9.Qc2 =+.

8.Nf3 Be7 9.Nc3 0–0 10.Ne5 (10.Be2 Qb6=+) 10...Ra5 (10...Be8 11.Qf3–/+) 11.Nd7 (11.Qf3 Bd6 12.d4 c4=+) 11...Nbd7–/+ 12.Qc2 Nb6 13.Be2 h6 14.0–0 Qa8 15.d4 cd4 16.ed4 Ba3 17.Ba3 Ra3 18.Ra3 Qa3 19.Nb1 Qa5 20.Qc7 Qa7 21.Rc1 Rc8–+ 22.Qc8? Nc8 23.Rc8 Kh7 24.Rc7 Kg8 25.Bd3?? Kf8 26.Nd2 Qd4 27.Nf3 Qa1 28.Bf1 Ne4 29.Rc2 Qa4 30.Rb2 g5 31.b6 g4 32.Ne5 Qa1 33.Rc2 Qe5 0–1. Slavisa666 – draskod, Live Game Caissa's Web, 2004.

8.Nf3 g6 9.Ne5 Bg7 10.Be2 Ne4 11.Qc2 0–0 12.Nd7 (12.0–0 Qb6 13.d3 Nd6=) 12...Bb2+= (worse is 12...Qd7 13.Bg7 Kg7 14.Nc3+=) 13.Qb2 Nd7 14.0–0 c4 (14...Qf6 15.Nc3+=) 15.Nc3 (15.d3 cd3 16.Bd3 Qf6 17.Qf6 Nef6+=) 15...Ndc5 (15...Nec5 16.Rfd1+=) 16.Ne4= Ne4 17.a4 (17.d3 cd3 18.Bd3 Nc5=) 17...Qd6 (17...Qa5 18.Rfd1+=) 18.Bf3 (18.d3!? cd3 19.Bd3=) 18...Nc5–/+ 19.a5 Nd3 (19...Nb3!?–/+) 20.Qc3= b6 (20...Rfc8 21.Be2 Nc5 22.Ra2=) 21.ab6 (21.a6!?+=) 21...Qb6= 22.Ra8 (better is 22.Rfb1!?=) 22...Ra8–/+ 23.Rb1 Ra5 24.Be2 Nc5 (24...Rb5 25.Rb5 Qb5 26.Bd3 cd3 27.Qc8 Kg7 28.Qc3 Kh6 29.h3–/+) 25.Bc4 (better is 25.d3!? Rb5 26.Rb5 Qb5 27.dc4 Qb1 28.Bf1=) 25...dc4–/+ 26.Qc4 Na6! 27.Qc8 (27.ba6 Qb1 Pinning (27...Qb1 Deflection)) 27...Kg7 28.Qc3 f6 29.Qc6 (29.Qd3!? Nc5 30.Qc4–/+) 29...Qc6–+ 30.bc6 Rc5 31.g3 Rc6 32.d4 h5 33.Kg2 f5 34.Rb2 Kf6 35.Kf3 Nc7 36.h4 Nd5 37.Rb8 Rc2 38.Rb3? (38.Rb5–+) 38...Nc3 39.Rb6 Ne4 40.Kg2 Rf2 41.Kh3 (41.Kg1–+) 41...g5 42.hg5 (42.Re6 Ke6 43.hg5 Ng5 44.Kh4 Nf3 45.Kh5 Kf6 46.e4 Rh2) 42...Ng5 43.Kh4 Rh2 0–1. mikebaldini (1755) – bonustrick (1735), gameknot.com, 2014.

6.c4 dc4

7.Bc4 Bd7 8.a4 ab5 9.ab5 Ra1 10.Ba1 Be7 11.Nf3 0–0 12.0–0 Bc8 (12...Ne4 13.Nc3 Nd6 14.Be2=) 13.Nc3 (13.d4 b6+=) 13...Nbd7= 14.Na4 b6 15.Qb3 Bb7 16.Be2 Qc7 17.Rd1 Ra8 18.Nb2 (18.d4 cd4 19.Rd4 Bd5+=) 18...Ne4 (18...Ng4!? 19.g3 Nge5–/+) 19.Nc4 Bf6 20.Bf6 Nef6 21.Qb2 Ra4 22.Nce5 Bd5 23.Nd7 Nd7 24.Ra1 Qa7 25.Ra4 Qa4 26.h3 f6 27.g4 (27.d4!?=) 27...Qa8–/+ 28.Ne1 Ne5 29.d4 Nc4 30.Qc1 Qa2 31.Bf3 (31.Bc4 Bc4 32.dc5 bc5=) 31...Qb3 (better is 31...cd4!? 32.Bd5 ed5–/+) 32.Bd5 ed5 33.dc5 bc5 34.Qa1 Qb5 (better is 34...h6!? 35.Qa8 Kh7 36.Qd5 Qb5=) 35.Qa8+/– Kf7 36.Qd5 Kf8 37.Nd3 Ke7 (37...Nd2!?+/–) 38.Nc5+– (worse is 38.Qc5 Qc5 39.Nc5 Kd6+/–) 38...g5?? (better is 38...Ne5+–) 39.Qe6 Kd8 40.Qf6 Kc7 41.Qg5 (41.Ne6 Kd7 42.Ng5 Nd2 43.Qf7 Kd6 44.Nh7 Qf1 45.Kh2 Qc4 46.Qf8 Kd7+–) 41...Kc6 42.Ne6 Qb1 43.Kh2 Qe4 (43...Qf1 44.Qf6+–) 44.Qc5 Kd7 45.Qd4 (45.Nf8!? Ke8 46.Nh7 Qf3+–) 45...Qd4 46.Nd4 (46.ed4?! Ke6 47.Kg3 Nd6+=) 46...Kd6 47.Kg3 Ke5 48.h4 Ke4 49.Nf3 h6 (49...Kd5 50.Ng5 h6 51.Kf4+–) 50.h5 Nd6 51.Nd4 1–0. Koerner,He (1930) – Schneider,Ec (1730), 10th Lichtenberger Sommer, 2011.

7.Bc4 Be7 8.Nc3 0–0 9.Nf3 ab5 10.Bb5 Bd7 11.a4 Bb5 12.ab5 Ra1 13.Qa1 Qd3 14.Ne5 Qf5 15.Nf3 Nbd7 16.0–0 Ne5 17.Ne5 Qe5 18.Ne2 Qd6 19.d4 (19.Bc3+=) 19...Rc8 (better is 19...c4!?+=) 20.dc5+= Qd3 (20...Qc5?? 21.Rc1 Qc1 22.Nc1+–) 21.Nd4 Bc5 22.Rc1 (22.Rd1 Qe4 23.Rc1=) 22...b6 (22...Ne4 23.Qa4+=) 23.Rc3 (better is 23.Nc6!? Nd5 24.Bg7+/–) 23...Qe4= 24.Rc1 (24.Nb3 Ra8 25.Qf1 Be7=) 24...Ra8+= 25.Qb1 Qb1 26.Rb1 Ne4 (26...Nd5 27.Nb3 Be7 28.Ra1 Ra1 29.Ba1=) 27.Ra1 Ra1 28.Ba1 Nd6 29.Kf1 (29.f4!?=) 29...e5+= 30.Nb3 f6 31.Nc5 bc5 32.b6 Kf7 33.Bb2 (33.g4 Ke6+=) 33...Ke6–/+ 34.Ke2 Kd5 35.Kd3 (35.g4 Kc6–/+) 35...Kc6 36.f3 Kb6 37.g4 (37.e4 Kb5 38.Kc3 Nf7–+) 37...Kb5–+ 38.Kc3 (38.Bc3 Ka4 39.Kc2 Nc4–+) 38...Nc4 (38...e4 39.f4–+) 39.Bc1–/+ g6 0–1. Bartle,Georg (1675) – Gelzinnus,Siegfried, 2rd Berlin Germany, Senior Championship, 2010.

7.Bc4 ab5

8.Bb5 Nc6 9.Nc3 (9.Nf3 Bd6) 9...Bd6 10.Nf3 0–0 11.0–0 Qd7 (11...e5 12.Qc2+=) 12.d4 b6 (12...cd4 13.ed4 Rd8=) 13.d5 (better is 13.Ne5!? Be5 14.de5+=) 13...ed5 14.Kh1? (14.Na4 Bc7 15.Bf6 gf6=) 14...Ba6 (better is 14...Bc7–+) 15.Ba6= Ra6 16.Nd5 Nd5 17.Qd5 Ra4 (17...Ne7 18.Qd3 b5 19.Rfd1=) 18.Rfd1 (18.Ne5!? Ne5 19.Be5+/–) 18...Rd8+= 19.Qg5 (better is 19.Ng5 Rh4 20.g3=) 19...Rg4?? (19...Qg4 20.Qg4 Rg4 21.Be5=) 20.Qh5?? (better is 20.Rd6 Rg5 21.Rd7 Rd7 22.Ng5+–) 20...Ne7?? (better is 20...Rg6+=) 21.Rd6! Qd6 22.Qg4 Qd1 (22...f6+–) 23.Rd1 Rd1 24.Ng1 g6 25.Qd1 Nc6 (25...f6 26.Qd6 Nf5 27.Qf6 h6 28.Qg6 Kf8 29.Qf5 Ke7 30.Nf3 Kd8 31.Ne5 Kc7 32.Qd7 Kb8 33.Nc6 Ka8 34.Qa7) 26.Qd6 h5 (26...f5 27.Qc6 Kf8 28.Qd7 b5 29.Qg7 Ke8 30.Bf6 b4 31.Qe7) 27.Qf6 Kh7 1–0. Makoveev,Ilya – Fadina,Yaroslavna, Kislovodsk RUS, Open, 2013.

8.Bb5 Bd7 9.Nc3 Nd5 10.Bd7 Nd7 (worse is 10...Kd7 11.Nd5 ed5 12.Qh5+/–) 11.Nf3 f6 12.Nd5 ed5 13.Nh4 Qe7 14.0–0 Qf7 15.f4 g6 16.e4 Bg7 (16...c4 17.Qc2=) 17.e5 (17.ed5!? Qd5 18.f5=) 17...0–0 18.d4 c4 (18...cd4 19.Qb3–/+) 19.Bc3 Rfe8 20.Nf3 Bf8 Attacking the isolated pawn on a3 21.Qd2 (21.a4 Bh6 22.Bd2 Nf8=) 21...Ra3 22.Ra3 Ba3 23.Ra1 Be7 24.Ra7 Rb8 25.Bb4 Bd8 (better is 25...Nb6!?+=) 26.Bd6= Rc8 27.Rb7 c3 28.Qc2 Qe6 29.Ne1 fe5 30.fe5 Bg5 31.Qf2 Bd2 (31...Nf6 32.Nc2=) 32.Nd3 (32.Nc2 Qg4 33.Qf3 Qf3 34.gf3 Nf8+=) 32...Qg4 33.h3 Qe4? (better is 33...Qe6+=) 34.Nc5+– (34.Rd7?? Be3 35.Kh1 Bf2 36.Nf2 Qe1 37.Kh2 Qf2–+) 34...Qe3?? (34...c2 35.Qd2 c1Q 36.Qc1 Qd4 37.Kh2 Nc5+–) 35.Nd7 (35.Rd7?? c2 36.Rf7 c1Q 37.Kh2 Qf2 38.Rf2 Be3–+) 35...Qf2 (35...Kh8 36.Nf6 Qh6 37.Ng4+–) 36.Kf2 Bf4 37.Ba3 (37.Nf6 Kh8 38.Rh7) 37...c2 38.Nc5 Rc6? 39.Nb3 c1Q 40.Nc1 Bc1 41.Bc1 Rc1 42.Rd7 Rc2 43.Kg3 Kf8 44.Rd5 Ke7 45.Rd6 Rd2 46.Kf3 g5 47.d5 h5 48.Re6 Kd7 49.Rg6 Rd3 50.Ke4 Rg3 51.Kf5 Rg2 52.Rg5 Rf2 53.Kg6 h4 54.Kh5 Rf4 55.Rg7 Ke8 56.Kg5 Rd4 57.d6 Kf8 58.Rh7 Rc4 59.Kf6 Rf4 60.Ke6 Kg8+– 61.d7 Rd4 62.Rh4! 1–0. Kalanyos,Ferenc (2000) – Wolosz,Robert (1980), HUN–chT2 Asztalos, 2008.

8.Bb5 Bd7 9.Nc3 Be7 10.Qf3 (10.Bc4 0–0=) 10...Bc6 (10...Bb5 11.Nb5 Nc6 12.Rc1=+) 11.Bc6 Nc6 (11...bc6?! 12.Ne4+=) 12.Nge2?? (12.Ne4 Ne4 13.Qe4 Bf6=+) 12...0–0 13.0–0 h6 14.Rfd1 Qc7 15.Qg3 Bd6 16.Qf3 Be5 17.d4 cd4–/+ 18.ed4 Bd6 19.Nb5 Qb8 20.Nd6=+ Qd6 21.Rac1 Nd5 22.Nc3 Nce7 23.Ne4= Qd7 24.Qg3 Rac8 25.h3 Rc1 26.Bc1 Nf5 27.Qg4 Qe7 28.Rd2 Rc8 29.Bb2 Qh4 30.Qh4= Nh4 31.Kh2 Nf5 32.Nc5 b6 33.Nd7 Rc7 34.Nb8 Nf6 35.g4 Nd6 36.d5 Nd5 37.Rd5 –/+. Slavisa666 – Putte5, Live Game Caissa's Web, 2004.

8.Bb5 Bd7 9.Bd7 Nbd7 10.Qb3 Qc7 11.Nf3 Be7 12.0–0 0–0 13.Rc1 Rfc8 14.d3 b5 15.Nbd2 (15.Qb5? Rcb8 16.Qc4 Rb2–+) 15...Rab8 16.Rab1 Qa5 17.Qc3 Qc3 18.Rc3 Nd5 19.Rcc1 f6 20.g3 N5b6 21.Rc2 Kf7 22.Kf1 e5 23.Ke2 Na4 24.Bc1 b4 25.ab4 (25.Rb3!?+=) 25...cb4–/+ 26.Rc8 Rc8 27.Bb2? (better is 27.Kf1!?–/+) 27...Rc2–+ (27...Nb2?! 28.Rb2 f5 29.e4+=) 28.Ba1 Ra2 29.Kf1–/+ Ndb6 30.Nb3 Nc5 31.Nc5+= Bc5 32.d4 ed4 33.Bd4 Bd4 34.Nd4 ˝–˝. Bender,Wolfgang (1780) – Naeckel,Gerhard (2180), Saarlouis op 7th, 2004.

8.Bb5 Bd7 9.Qe2 Nc6 10.Nf3 Be7 11.Nc3 0–0 12.0–0 h6 13.e4 (better is 13.Rfb1!?=) 13...Nd4–/+ 14.Qd3 (14.Nd4!? cd4 15.Nb1–/+) 14...Nb5–+ 15.Nb5 Ne4! 16.Qe4 Bb5 17.Rfe1 Bc6 18.Qg4 Bf6 19.Bc3 Bc3 20.dc3 b5 21.Ne5 Bb7 22.Red1 Qc7 23.Nd7 (better is 23.Qe2!? Bd5 24.c4 bc4 25.Nc4–/+) 23...Rfd8–+ 24.Nf6 Kh8 25.Nh5 g6 (25...Qe5 26.Rd8 Rd8 27.Rc1–+) 26.Nf4 (26.Ng3 Rd1 27.Qd1 Bd5–+) 26...Kh7 (26...Rd1 27.Rd1 Ra3 28.Ne6 fe6 29.Qg6–+) 27.h4? (better is 27.Nd3!?–+) 27...Rd1 28.Rd1 Rd8 (better is 28...Ra4!? 29.g3 Qc6–+) 29.Rd8–/+ Qd8 30.h5 (30.Qe2 c4–+) 30...gh5 (better is 30...g5!? 31.Nh3 Qd3–+) 31.Qh5–/+ Qf6 32.Qg4? (better is 32.g3 Qe7 33.Nd3–/+) 32...Qc3–+ 33.Nh5 Qe1 34.Kh2 Qe5 35.f4 f5 (35...Qb2!? 36.f5 Qe5 37.Ng3–+) 36.Qh4 Qc7 37.Nf6 Kg6 38.Ne8 Qf7 39.Nd6 Qd7 40.Qg3 (40.Nb7 Qb7 41.Qd8 Kf7–+) 40...Kh7 41.Qd3 (41.Nb7 Qb7 42.Qd3 Qc6–+) 41...c4 (41...Be4 42.Qd1–+) 42.Qd1 (42.Qd4–+) 42...Bd5 43.Qh5 Qd6 44.Qf7 Kh8 45.Qf6 Kg8 46.Qg6 Kf8 47.Qh6 Ke7 48.Qg7 Kd8 49.Qh8 Kc7 50.Qg7 Kc6 51.Qd4 (51.Qg3 Qc5 52.Qe1 Qa3–+) 51...Qa3 52.Qh8 Qe7 53.Qa8 Kc5 54.Qc8 Kd4 55.Qh8 Kd3 56.Qh3 Kc2 57.Qe3 Qh4 58.Kg1 Qg4 59.Qf2 Kd3 60.Qf1 Qe2 61.Qb1 Kd4 62.Qa1 c3 63.Qa7 Kd3 0–1. nimzo1 – kianas, ChessWorld.net, 2013.

6.Nf3 ab5

7.Nc3 b4 8.ab4 Ra1 9.Ba1 (9.Qa1 cb4 10.Nb5 Nc6= 11.Bd3 Bc5 12.0–0 0–0 13.h3 Qe7 14.Nbd4) 9...cb4 (9...Nc6 10.bc5 Bc5 11.Bd3 0–0 12.0–0 e5 13.e4 d4 14.Nb5) 10.Nb5 Be7 (10...Nc6 11.Ne5 Be7 12.Bd3 0–0 13.0–0 Ne4 14.Qg4) 11.Ne5 (11.Be5 Nc6+= 12.Bc7 Qd7 13.Ne5 Ne5 14.Be5; 11.Bd3 Nc6 12.Bb2 0–0 13.Qe2 Ne4 14.0–0) 11...0–0+= (11...Nc6 12.Bd3 0–0 13.0–0 Ne4 14.Qg4) 12.Be2 Nc6 13.0–0 Ne5 (13...Ne4 14.f3) 14.Be5 Bd7 15.Bc7 Qc8 16.Be5 Bc6 17.Na7 Qd7 18.Nc6 bc6 19.Qa1 c5 20.Qa5 Qd8 (20...Bd6 21.Bf6 gf6 22.f4–/+) 21.Ra1+= Qa5 22.Ra5 c4 23.Ra7 Re8 24.d3 c3 (24...cd3 25.Bd3 Ne4 26.g3=) 25.Rb7 h6 26.f3 Bf8 27.d4 Ra8 28.Kf2 Ra2 29.Bd3 Ra8 30.Bf4 Nh5 31.Bc7 Nf6 32.e4 de4 33.fe4 g6 (33...g5 34.Kf3+=) 34.Kf3 Ne8 35.Bf4 Nf6 36.g3 Nh5 37.Be5 Ng7 38.d5 (38.Rb6 Ne8+=) 38...ed5 39.ed5 Rd8 40.Rb5 Ne8 41.g4 Nd6 (41...Rc8!?+=) 42.Rb4+/– Ne8 43.Rb5 Ng7? (better is 43...Bd6!? 44.Bc3 Bh2+/–) 44.Bc3+– Bd6 45.Bf6 Re8 (45...Rf8 46.h4+–) 46.h3 h5 (46...Re1 47.Kg2+–) 47.c4 hg4 48.hg4 Be5 (48...Ra8 49.c5 Ne8 50.Bb2+– (50.cd6?! Nf6 51.g5 Nd7+/–)) 49.Be5 Re5 50.Kf4 Re8 51.c5 Rd8 (51...Rc8 52.c6 Ne8 53.Rb7+–) 52.d6 Ne6 (52...Kf8 53.Ke5 Re8 54.Kd5+–) 53.Ke5 Kg7 (53...Nc5 54.Rc5 Kf8 55.Rc7 Re8 56.Kd5+–) 54.c6 Nf8 (54...Rc8 55.Be4 Ng5+–) 55.Rb7 1–0. mrkt – pepah, internet, 2011.

7.Nc3 c4 8.Nb5 Bc5 9.Be2 (9.d4 Be7 10.a4 0–0 11.Be2 Nc6 12.0–0 Bd7 13.Ne5 Ne5 14.de5) 9...Bd7 10.a4 Nc6 11.0–0 0–0 12.d3 cd3 13.cd3 Qb6 14.Qd2.

7.Nc3 c4 8.Nb5 Nc6 =.

7.Nc3 c4 8.Nb5 Bd7 9.a4 Nc6 10.Be2 Bb4 11.0–0 Qa5 12.Bf6 gf6 13.d3 c3 14.Qb1.

7.Nc3 c4 8.Nb5 Be7 9.a4 (9.Be2 0–0 10.0–0 Bd7 11.a4 Nc6 12.d3 cd3 13.cd3 Qa5 14.Qb3) 9...0–0 10.Be2 Bd7 11.0–0 Nc6 12.d3 cd3 13.cd3 Qa5 14.Qb3.

7.Nc3 Nc6 A) 8.Be2 A1) 8...b4 9.ab4 Ra1 10.Qa1 Nb4 11.0–0 Be7 12.Bb5 Bd7 13.Bd7 Nd7 14.Na2; A2) 8...Bd6 9.Nb5 (9.0–0 0–0 10.Nb5 e5 11.Nd6 Qd6 12.d4 cd4 13.ed4 e4 14.Ne5) 9...0–0 10.Bf6 gf6 11.c4 Be5 12.Rc1 b6 13.Ne5 fe5 14.0–0; A3) 8...Be7 9.Nb5 (9.0–0 b4 10.ab4 Ra1 11.Qa1 Nb4 12.Nb5 0–0 13.Qa4 Bd7 14.c3) 9...0–0 10.0–0 Bd7 11.a4 h6 12.c4 Qb6 13.Ne5 Ne5 14.Be5; A4) 8...Bd7 9.Nb5 (9.0–0 Be7 10.Nb5 0–0 11.a4 Ne4 12.d3 Nd6 13.h3 f6 14.c4) 9...Be7 10.0–0 0–0 11.a4 Ne4 12.d3 Nd6 13.c4 f6 14.Qb3; A5) 8...g6 9.0–0 (9.h3 Bg7 10.0–0 0–0 11.Nb5 Qe7 12.c4 e5 13.a4 Rd8 14.Rc1; 9.Qc1 Bg7 10.Nb5 0–0 11.h3 Qe7 12.0–0 e5 13.c4 Rd8 14.Qc2; 9.Nb5 Bg7 10.0–0 0–0 11.c4 Qe7 12.Qb3 Rd8 13.Qc3 b6 14.a4; 9.g3 Bg7 10.Nb5 0–0 11.0–0 Qe7 12.d4 b6 13.c4 Bb7 14.Qd3; 9.Bb5 Bd6 10.e4 d4 11.e5 dc3 12.dc3 Be7 13.Qd8 Kd8 14.ef6; 9.Ra2 Be7 10.0–0 0–0 11.Nb5 Bd7 12.Qb1 Qb6 13.Ne5 c4 14.Nd7) 9...Bg7 10.Nb5 0–0 11.c4 Qe7 12.Qb3 Rd8 13.Qc3 b6 14.a4; B) 8.Bb5 B1) 8...Qb6 9.Rb1 (9.a4 Bd7 10.0–0 Be7 11.Ne2 0–0 12.d3 Ne8 13.Nf4 Nd6 14.c4; 9.Qe2 Bd6 10.Na4 Qc7 11.0–0 e5 12.c4 e4 13.Bf6 ef3 14.Qf3) 9...d4 10.ed4 cd4 11.Bc6 Qc6 12.Nd4 Qg2 13.Qf3 Qf3 14.Nf3; B2) 8...Bd6 9.Qe2 (9.0–0 0–0 10.Qe2 Bd7 11.h3 h6 12.a4 Nb4 13.Bd7 Qd7 14.d3) 9...0–0 10.0–0 Bd7 11.h3 h6 12.a4 Qc7 13.Ba3 Nb4 14.Bd7; C) 8.Nb5 C1) 8...Bd7 9.a4 (9.Be2 Be7 10.a4 0–0 11.0–0 c4 12.d3 cd3 13.cd3 Qb6 14.Qd2; 9.c4 Be7 10.Qc2 0–0 11.Bd3 Qb6 12.Rb1 g6 13.0–0 Na5 14.Be5; 9.h3 c4 10.Be2 Bc5 11.0–0 Qa5 12.a4 0–0 13.d3 cd3 14.Bd3) 9...Be7 10.Be2 0–0 11.0–0 Qa5 12.c4 h6 13.Qb3 Qb6 14.d3; C2) 8...h6 9.c4 (9.Be2 Be7 10.c4 0–0 11.0–0 b6 12.Qc2 Bb7 13.d3 Qb8 14.Rad1; 9.h3 Be7 10.Be2 0–0 11.0–0 Bd7 12.a4 Qb6 13.Ne5 Rfd8 14.Nd7; 9.a4 Be7 10.Be2 0–0 11.0–0 Bd7 12.c4 dc4 13.Bc4 Na5 14.Bd3; 9.g3 Be7 10.Bg2 0–0 11.0–0 Qb6 12.a4 Bd7 13.Qe2 Na7 14.Ne5) 9...Be7 10.Qc2 0–0 11.Bd3 Na5 12.Ne5 dc4 13.Nc4 Qd5 14.0–0; C3) 8...Ra6 9.c4 Be7 10.Qc2 0–0 11.Bd3 dc4 12.Bc4 Bd7 13.0–0 Rb6 14.a4; C4) 8...Be7 9.Be2+= 0–0 10.0–0 Bd7 11.a4 Qb6 12.c4 dc4 13.Bc4 Nd5 14.e4.

7.Nc3 Bd6 8.Nb5 (8.h3 e5 9.Nb5 Nc6 10.Be2 0–0 11.0–0 e4 12.Ne1 Bf5 13.a4 h6 14.d4) A) 8...0–0 9.Bd3 (9.Nd6 Qd6 10.a4 Nc6 11.Bb5 Bd7 12.0–0 Nb4 13.Be5 Qe7 14.Bf6; 9.a4 Nc6 10.Nd6 Qd6 11.Bb5 Bd7 12.0–0 Nb4 13.Be5 Qe7 14.Bf6; 9.Bf6 gf6 10.Be2 e5 11.Nd6 Qd6 12.0–0 Nc6 13.Qb1 Kh8 14.Qb6; 9.Be2 Nc6 10.Bf6 gf6 11.c4 Ne5 12.Qc2 Be7 13.0–0 Bd7 14.a4; 9.c4 Nc6 10.Bf6 gf6 11.Be2 dc4 12.Bc4 Be5 13.Rc1 Qa5 14.0–0; 9.h3 Nc6 10.Nd6 Qd6 11.Bb5 Bd7 12.0–0 Rfe8 13.Bf6 gf6 14.a4; 9.Ne5 Nc6 10.Nc6 bc6 11.Bf6 gf6 12.Nd6 Qd6 13.Qf3 e5 14.a4 ; 9.h4 Be7 10.Be2 Nc6 11.0–0 Bd7 12.a4 Qb8 13.c4 Ng4 14.g3) 9...Nc6 10.Bf6 gf6 11.c4 Be5 12.Ne5 Ne5 13.Qc2 dc4 14.Bc4; B) 8...Nc6 9.Nd6 (9.a4 0–0 10.Nd6 Qd6 11.Bb5 Re8 12.Bf6 gf6 13.0–0 Bd7 14.Nh4; 9.Be2 0–0 10.Bf6 gf6 11.c4 Ne5 12.Qc2 dc4 13.Bc4 b6 14.Nd6; 9.c4 0–0 10.Bf6 gf6 11.Be2 Be7 12.0–0 f5 13.d4 b6 14.Qc2) 9...Qd6 10.Bb5 0–0 11.0–0 Bd7 12.Qe2 Rfe8 13.Bf6 gf6 14.e4.

7.Nc3 Bd7 A) 8.Ne5 A1) 8...Qb6 9.Be2 (9.g4 Bd6 10.Nd7 Nbd7 11.g5 Ne4 12.Rb1 0–0 13.Bb5 Nc3 14.Bc3; 9.Nd7 Nbd7 10.Nb5 Be7 11.Be2 0–0 12.0–0 c4 13.a4 Nc5 14.Bd4) 9...c4 10.Bh5 g6 11.Bf3 Bd6 12.Ne2 0–0 13.Nc4 bc4 14.Bf6; A2) 8...Ra5 9.a4 b4 10.Nb5 Nc6 11.Be2 Be7 12.0–0 0–0 13.Bf3 Qb6 14.g3; A3) 8...c4 9.g4 (9.f4 Bd6 10.Qf3 0–0 11.Qg3 Bc6 12.Be2 Nbd7 13.0–0 h6 14.Bf3; 9.Be2 Ra5 10.0–0 Bd6 11.f4 Nc6 12.Ng4 Ng4 13.Bg4 0–0 14.Qe2) 9...Nc6 10.Nd7 Nd7 11.Nb5 Qb6 12.Rb1 Nce5 13.Bc3 Be7 14.Bg2; B) 8.Be2 Ra5 (8...Qb6 9.Ne5 c4 10.a4 b4 11.Nb5 Bc5 12.0–0 0–0 13.g3 Nc6 14.Nd7) 9.g4 (9.Qb1 Qb6 10.a4 b4 11.Nb5 Nc6 12.Ne5 Qd8 13.0–0 Be7 14.c4; 9.0–0 Bd6 10.Ng5 Na6 11.f4 0–0 12.e4 h6 13.e5 hg5 14.ed6; 9.Ne5 Bd6 10.Nd7 Qd7 11.0–0 0–0 12.f4 c4 13.Bf3 Nc6 14.d3; 9.Ng5 Bd6 10.f4 0–0 11.0–0 Qb6 12.a4 ba4 13.Rb1 Qc7 14.Ba3) 9...Ng4 10.Rg1 f5 11.h3 Nf6 12.Qb1 c4 13.Na2 Nc6 14.Nb4; C) 8.Nb5 C1) 8...Be7 9.c4 (9.a4 Nc6 10.Be2 0–0 11.0–0 Ne4 12.d3 Nd6 13.h3 f6 14.c4; 9.Be2 Nc6 10.0–0 0–0 11.a4 Ne4 12.d3 Nd6 13.h3 f6 14.c4) 9...0–0 10.Be2 Nc6 11.Qc2 Qb6 12.0–0 dc4 13.a4 Na5 14.Bc4; C2) 8...Nc6 9.c4 (9.Be2 Be7 10.a4 0–0 11.0–0 Ne4 12.d3 Nd6 13.h3 f6 14.c4; 9.a4 Be7 10.Be2 0–0 11.0–0 Ne4 12.d3 Nd6 13.h3 f6 14.c4; 9.h3 Be7 10.Be2 0–0 11.0–0 Qb6 12.a4 Ne4 13.d3 Nd6 14.c4) 9...Be7 10.Qc2 0–0 11.Be2 Na5 12.cd5 Bb5 13.Bb5 Qd5 14.0–0; C3) 8...c4 9.a4 (9.Qb1 Nc6 10.d3 Na7 11.Na7 Ra7 12.dc4 Qa5 13.c3 Bd6 14.Bd3) 9...Nc6 10.Be2 Bb4 11.0–0 0–0 12.d3 cd3 13.cd3 Qe7 14.Qb3.

7.Nc3 Be7 A) 8.Nb5 A1) 8...0–0 9.Be2 (9.a4 Nc6 10.Be2 Ne4 11.0–0 Bd7 12.d3 Nd6 13.c4 f6 14.Qb3) 9...Bd7 10.a4 Nc6 11.0–0 Ne4 12.d3 Nd6 13.c4 f6 14.Qb3; A2) 8...Bd7 9.Be2 (9.a4 0–0 10.Be2 Nc6 11.0–0 Ne4 12.d3 Nd6 13.c4 f6 14.Qb3; 9.c4 0–0 10.Be2 Bb5 11.cb5 Ne4 12.0–0 Bf6 13.Bf6 Qf6 14.a4; 9.g3 0–0 10.Be2 Bb5 11.Bb5 Ne4 12.0–0 Bf6 13.Qb1 Nc6 14.Bd3) 9...Nc6 10.0–0 0–0 11.a4 Ne4 12.d3 Nd6 13.c4 f6 14.Qb3; A3) 8...c4 9.Be2 (9.a4 Nc6 10.Be2 0–0 11.0–0 Bd7 12.d3 cd3 13.cd3 Qa5 14.Qb3) 9...0–0 10.0–0 Bd7 11.a4 Nc6 12.d3 cd3 13.cd3 Qa5 14.Qb3; A4) 8...Nc6 9.Be2 (9.a4 Bd7 10.Be2 0–0 11.0–0 Ne4 12.d3 Nd6 13.c4 f6 14.Qb3) 9...0–0 10.0–0 Bd7 11.a4 Ne4 12.d3 Nd6 13.c4 f6 14.Qb3; B) 8.Bb5 Nc6 (8...Bd7 9.Ne5 Nc6 10.Nd7 Qd7 11.0–0 0–0 12.a4 Qc7 13.Be2 Qb6 14.Nb5) 9.0–0 (9.Qe2 0–0 10.0–0 Bd6 11.a4 Bd7 12.h3 h6 13.Rfe1 Qb6 14.Ba3; 9.h3 0–0 10.0–0 Bd6 11.Re1 Bd7 12.a4 Qb6 13.Ba3 Nb4 14.Bd7; 9.a4 0–0 10.0–0 Bd7 11.h3 h6 12.Re1 Qc7 13.Qe2 Rfe8 14.Rab1; 9.Rb1 0–0 10.0–0 Bd6 11.Qe2 Bd7 12.h3 Re8 13.Rfc1 e5 14.Bc6; 9.Be2 0–0 10.0–0 Qb6 11.a4 Bd7 12.Nb5 Ne4 13.d3 Nd6 14.c4; 9.Ne2 0–0 10.0–0 Na7 11.a4 Nb5 12.ab5 Bd7 13.Ra8 Qa8 14.Nc3; 9.g3 0–0 10.0–0 Bd6 11.Qe2 Bd7 12.a4 h6 13.e4 Nd4 14.Qd3) 9...0–0 10.a4 Bd7 11.h3 h6 12.Qe2 Bd6 13.Ba3 Qc7 14.Rab1; C) 8.g3 C1) 8...Nc6 9.Bb5 (9.Nb5 Qb6 10.Be2 0–0 11.0–0 Ne4 12.c4 Bd7 13.d3 Nd6 14.Rb1) 9...Bd6 10.0–0 0–0 11.Qe2 Bd7 12.a4 Qc7 13.Ba3 h6 14.Rfe1; C2) 8...Qb6 9.Nb5 (9.Bb5 Nc6 10.a4 0–0 11.Qe2 d4 12.ed4 Nd4 13.Nd4 cd4 14.Ne4) 9...0–0 10.a4 Ne4 11.Be2 Nc6 12.0–0 Bd7 13.c4 f6 14.d3; C3) 8...Bd7 9.Bb5 (9.Ne5 Qb6 10.Nd7 Nbd7 11.Nb5 0–0 12.a4 Qc6 13.Be2 Nb6 14.Ra2; 9.Nb5 0–0 10.a4 Nc6 11.Be2 Ne4 12.0–0 Bf6 13.Qc1 Bb2 14.Qb2; 9.Bg2 Qb6 10.Ne5 0–0 11.Qe2 Bc6 12.0–0 Nbd7 13.Nc6 bc6 14.Rfe1; 9.Be2 c4 10.0–0 Qb6 11.Ne5 Nc6 12.Nd7 Nd7 13.Bg4 Nf6 14.Rb1) 9...Nc6 10.a4 0–0 11.0–0 Qb6 12.Qe2 h6 13.Ba3 Qc7 14.e4; C4) 8...0–0 9.Bb5 (9.Be2 Nc6 10.Nb5 Ne4 11.0–0 Bd7 12.d3 Nd6 13.c4 Qb6 14.Rb1; 9.Nb5 Ne4 10.Be2 Bd7 11.0–0 Bb5 12.Bb5 Bf6 13.Qb1 Nc6 14.Bd3) 9...Nc6 10.0–0 Bd7 11.a4 h6 12.Ne2 Ne4 13.d3 Nd6 14.Nf4; D) 8.h3 D1) 8...0–0 9.Be2 (9.Nb5 Bd7 10.a4 Nc6 11.Be2 Ne4 12.0–0 f6 13.d3 Nd6 14.c4; 9.Bb5 Nc6 10.0–0 h6 11.a4 Bd7 12.Re1 Re8 13.Be2 Qb6 14.Nb5) 9...Bd7 10.Nb5 Bb5 11.Bb5 Ne4 12.0–0 Bf6 13.Qb1 Nc6 14.Bd3; D2) 8...c4 9.Nb5 0–0 10.Be2 Bd7 11.a4 Na6 12.0–0 Nc5 13.Be5 Na4 14.Nfd4; D3) 8...Bd7 9.Bb5 (9.Nb5 0–0 10.a4 Na6 11.Be2 c4 12.0–0 Nc5 13.Nc3 Na4 14.Na4) 9...Nc6 10.0–0 0–0 11.a4 h6 12.Ne2 Bd6 13.c4 Re8 14.d3; D4) 8...Qb6 9.Nb5 (9.Bb5 Nc6 10.a4 Bd7 11.0–0 0–0 12.Qe2 h6 13.Rab1 Qc7 14.Ra1) 9...0–0 10.Be2 Bd7 11.a4 Nc6 12.0–0 Ne4 13.d3 Nd6 14.c4; D5) 8...h6 9.Nb5 (9.Be2 0–0 10.Nb5 Nc6 11.0–0 Bd7 12.a4 c4 13.d3 cd3 14.cd3) 9...Nc6 10.Be2 0–0 11.0–0 Bd7 12.a4 Qb6 13.Ne5 Rfd8 14.Nd7; D6) 8...Nc6 9.Bb5 (9.Be2 0–0 10.Nb5 Ne4 11.0–0 Bf6 12.Bf6 Nf6 13.d4 b6 14.c4; 9.Nb5 0–0 10.Be2 Ne4 11.0–0 Bd7 12.d3 Nd6 13.c4 Qb6 14.Rb1) 9...0–0 10.0–0 Bd6 11.Re1 e5 12.e4 de4 13.Ng5 Nd4 14.Bc4; E) 8.Be2 E1) 8...0–0 9.Nb5 (9.0–0 Nc6 10.Nb5 Ne4 11.d3 Nd6 12.c4 f6 13.Qc2 b6 14.d4) 9...Nc6 10.0–0 Bd7 11.a4 Ne4 12.d3 Nd6 13.c4 f6 14.Qb3; E2) 8...Bd7 9.Nb5 Nc6 10.0–0 0–0 11.a4 Qb6 12.c4 Rfd8 13.Ne5 Ne5 14.Be5; E3) 8...Qb6 9.Nb5 Nc6 10.a4 0–0 11.0–0 Bd7 12.c4 Rfd8 13.Ne5 Ne5 14.Be5; E4) 8...h6 9.h3 (9.Nb5 Nc6 10.c4 0–0 11.0–0 b6 12.Qc2 Bb7 13.d3 Qb8 14.Rad1; 9.0–0 Nc6 10.Nb5 0–0 11.c4 b6 12.Qc2 Bb7 13.d3 Qb8 14.h3; 9.g3 Nc6 10.0–0 0–0 11.Nb5 Qb6 12.Rb1 c4 13.d3 cd3 14.Qd3; 9.Ne5 Nc6 10.Nb5 Ne4 11.0–0 0–0 12.f3 Bf6 13.d4 Nd6 14.Ng4) 9...Nc6 10.0–0 0–0 11.Nb5 Bd7 12.a4 Qa5 13.c4 Rfd8 14.Qb3; E5) 8...c4 9.Nb5 Bd7 10.a4 0–0 11.0–0 Nc6 12.d3 cd3 13.cd3 Qb6 14.Qd2; E6) 8...Qa5 9.Nb5 Nc6 10.0–0 0–0 11.a4 Bd7 12.c4 g6 13.h3 Rfd8 14.Qc1; E7) 8...g6 9.0–0 (9.Nb5 Nc6 10.0–0 0–0 11.c4 dc4 12.Bc4 Bd7 13.Qc2 Nd5 14.Nc3; 9.h3 Nc6 10.0–0 0–0 11.Nb5 Qb6 12.c4 Bd7 13.a4 Rfd8 14.Ne5; 9.g3 Nc6 10.0–0 0–0 11.Nb5 Bd7 12.a4 Qb6 13.c4 Ng4 14.Bc3; 9.Ne5 Nc6 10.Nb5 0–0 11.0–0 Bd7 12.f3 Ne5 13.Be5 Bb5 14.Bb5) 9...Nc6 10.Nb5 0–0 11.c4 dc4 12.Bc4 Bd7 13.a4 Na5 14.Be2; E8) 8...Nc6 9.Nb5 (9.0–0 b4 10.ab4 Ra1 11.Qa1 Nb4 12.Rc1 0–0 13.h3 h6 14.Qa7) 9...0–0 10.0–0 Bd7 11.a4 Ne4 12.d3 Nd6 13.c4 f6 14.Qb3.

7.Bb5 Bd7

8.a4 Nc6 9.0–0 Be7 10.d3 0–0 11.Nbd2 Qc7 12.c4 Rfd8 13.Qe2 Be8 (13...Bd6 14.h3=) 14.Rfd1 Nd7 (14...h6 15.h3=) 15.h3= f6 16.d4 b6 (16...Bf7 17.Nb3=) 17.Nh4 (17.e4 Nd4 18.Bd4 cd4 19.Nd4 Nc5 20.cd5 ed5 21.ed5 Rd5+/–) 17...Bf7= 18.Nhf3 Nf8 (18...Bd6 19.Rac1=) 19.Nh4 Nd7 20.Nb3 (20.cd5 ed5 21.Qg4 g6=) 20...Nf8 (20...Bd6!?=) 21.cd5+= ed5 (21...Rd5 22.e4 Rdd8 23.Rac1+=) 22.Nf5 Bd6 (22...Ng6 23.dc5 bc5+/–) 23.Rdc1 (23.a5 Na5 24.Na5 Ra5 25.Ra5 Bh2 26.Kh1 ba5 27.dc5 Be5+/–) 23...c4+= 24.Nd2 (24.e4 Na7 25.Ba6 Nc8 26.Bc8 Rdc8=) 24...Na5 25.Nd6 Qd6 26.Ba3 Qe6 27.Qf3 (27.Rab1 Bg6 28.e4 Be4 (worse is 28...de4 29.Nc4 e3 30.Rb4+/–) 29.Ne4 Qe4 30.Qe4 de4 31.Bc4 Nc4 32.Rc4 Ne6=) 27...Kh8 (27...Ng6 28.Rab1+=) 28.Bb4 Ng6 29.Re1 Nh4 30.Qd1 (30.Qf4 Nf5=) 30...f5 (30...Nc6 31.Bc3+=) 31.g3= Ng6 32.Kh2 (32.h4 Nc6 33.Bc6 Qc6=) 32...h6 33.Nb1 (33.Qc2 Be8=) 33...Nb3+= 34.Ra2 Ne7 (34...Be8 35.Nc3+=) 35.Nc3 Nc6 36.Bc6 Qc6 37.Nb5 Be8 (37...Qd7 38.Qf3+=) 38.Qf3= Qf6 (38...Qg6!? 39.Be7 Rd7=) 39.Nc7+= Ra4 (better is 39...Rac8 40.Ne8 Re8 41.Qd5 Red8+=) 40.Ra4?? (better is 40.Ne8 Qc6 41.Ra4 Qa4 A) 42.Qf5?! Qe8 (worse is 42...Qb4 43.Qf7 Re8 44.Qe8 Kh7 45.Rg1+/–; 42...Re8?! 43.Bc3=) 43.Kg2 b5+=; B) 42.Nd6 Qb4 43.Nf7 Kg8 44.Nd8+–) 40...Ba4–+ 41.Nd5? (better is 41.Qf4–+) 41...Qc6 42.e4 (42.Qf5 Rd5 43.Qf8 Kh7 44.Bc3–+) 42...fe4 43.Re4 (43.Qe4 Qd5 44.Bc3 Nd4 45.Qd5 Rd5–+) 43...Qd5 44.Qe3 (44.Re3–+) 44...Bc6 45.f3 Qh5 (better is 45...Nd4 46.Rd4 Qd4 47.Qd4 Rd4–+) 46.g4 Qf7 47.Rf4 Qc7 48.Kg2 (48.Qe5 Qd7–+) 48...Re8 49.Qf2 Qf4 1–0. Lukomski,Adam – Jarius,H (2060), Trans–Europa–Schach–Express, 2012,

8.Nc3 Nc6 9.0–0 Bd6 10.Qe2 Qc7 (10...0–0 11.Rfb1+=) 11.Rfb1 (11.Ba4 0–0+=) 11...0–0+= 12.h3 (12.Bc6 Qc6 13.Nd1 Ne8+=) 12...Rfe8 13.Nd1 (13.Ba4 e5+=) 13...e5–/+ 14.Ne1 (14.d3 Nd4 15.Bd4 ed4+=) 14...Re6 (14...c4 15.d3–/+) 15.Qf1 (15.c4 Ree8+=) 15...Ne4 16.Bd3? (better is 16.Qe2–/+) 16...Nd2–+ 17.Bh7 Kh8 Black intends c4 18.Qd3? (18.Qe2 Nb1 19.Bf5–+) 18...Nb1 19.Bf5 (19.Rb1 Ne7 20.e4 c4–+) 19...c4 20.Qe2 Na3 21.Be6 Be6 22.Qh5 (22.Nf3 Kg8–+) 22...Kg8 23.Nf3 f6 (23...Ra6 24.Ng5 Bf5 25.Nc3–+) 24.Nh4 Ne7 25.Ba3 Bf7 (25...Ra3?! 26.Qe8 Kh7 27.Qh5 Kg8 28.Qe8 Kh7 29.Qh5 Kg8=; 25...Ba3?! 26.Ra3 Qd8 27.Ra8 Qa8 28.f4–/+) 26.Qe2 (26.Qg4 Ra3 27.Ra3 Ba3–+) 26...Ra3 27.Rb1 (27.Ra3 Ba3 28.e4 Bc5–+) 27...Be8 (27...c3 28.Nf3–+) 28.g4 (28.e4 de4 29.Qe4 Qc6–+) 28...e4 (28...Bc6 29.Nf3–+) 29.f4 b5 (better is 29...ef3 30.Nf3 Bc5 31.Kg2–+) 30.Qe1 (30.c3 Bc5 31.Ng2 Bd7–+) 30...b4 (30...g5 31.Ng2–+) 31.Ng2 (31.Qd2 c3 32.Qe2 Ba4–+) 31...Qa7 (31...Ba4 32.Qe2–+) 32.Kf2 (32.c3 bc3 33.Nc3 Qa5–+) 32...d4 (32...Ra2 33.Qd2–+) 33.ed4 (33.Rb4 Bb4 34.Qb4 Bf7–+) 33...Qd4 (33...Rf3!? 34.Kg1 Qd4 35.Nde3 Rh3 36.c3–+) 34.Nde3 Ng6 35.Rd1 Qb6 Black prepares the advance b3 (35...Qc5 36.Qd2 Bf4 37.Qd4–+) 36.Qd2 Bf4 37.Qd5 (37.Qd4 Be3 38.Ne3 Qc7 39.Qc4 Qc4 40.Nc4 Ra2–+) 37...Bf7 38.Qe4 Be3 39.Ne3 b3 40.cb3 cb3 (40...cb3 41.Kg2 b2–+) 0–1. Rosenfeld,Herbert – Morgan,Mordecai, Manhattan CC–Franklin CC, 1907.

8.Nc3 Nc6 9.0–0 Bd6 10.Qe2 e5 11.e4 d4 12.Nd5 0–0 13.Nf6 Qf6 14.h3 Qg6 15.Kh2 Qh5 16.Ng1 Bg4?? (better is 16...Qe2 17.Ne2 Be6–/+) 17.Qg4+– Qg4 18.hg4 Na7 19.Be2 b5 20.a4 ba4 21.Ra4 Rfb8 22.Ra2 Nc6 23.Ra8 Ra8 24.Ra1 Rb8 25.Ra2 (better is 25.Bc1 Nb4 26.c3 Nc2+–) 25...Nb4 26.Ra7 Nc2 27.Bc4 Rb2 28.Rf7 Kh8? (28...Na3 29.Bd5 Nb5 30.Nf3+–) 29.Rd7 g6 (29...h5 30.Nf3 hg4 31.Ng5+– (31.Rd6?! gf3 32.Re6 Na3 33.Re8 Kh7 34.Bg8 Kh6=)) 30.Rd6 (30.Nf3 Na3 31.Bd5 h6+–) 30...Na3 (30...Ne1 31.Nh3 h6 32.Rg6+–) 31.Bd5 Rd2 (31...Nc2 32.g5 Kg7+–) 32.Nf3 Rf2 33.g5 Kg7 (33...h5 34.Rd8 Kg7 35.Ne5 Nb5 36.Rg8 Kh7+–) 34.Ne5 Nc2 35.Rd7 Kf8 (35...Rf7 36.Rf7 Kg8 37.Rd7 Kh8 38.Rd8 Kg7 39.Rg8) 36.Nc6 1–0. Macedo,A Soares De (1995) – Palhano,Fabson Barbosa, 2nd Torneio Memorial Bobby Fischer, 2010.

8.Nc3 Nc6 9.0–0 Bd6 10.Be2 0–0 += .

8.Nc3 Bd6 9.0–0 0–0 10.d4 (10.Rb1 e5+=) 10...c4 (10...cd4 11.Qd4 Bb5 12.Nb5=) 11.a4 (11.Ne5 Bb5 12.Nb5 Ne4+=) 11...Bb5 12.ab5 Nbd7 (12...Ra1 13.Qa1 Qe7 14.Ne2+=) 13.Nd2 (13.Ra8 Qa8 14.Qd2 Qd8+=) 13...Qc7 14.h3 (14.Nf3 Ra1 15.Qa1 Ng4+=) 14...Nb6 (14...Ra1 15.Qa1 Qb6 16.Nf3–/+) 15.Qe2 (15.Qf3 Bh2 16.Kh1 Ra1 17.Ra1 Bd6=) 15...Bb4 16.Rfb1 h6 (16...Rfd8 17.e4+=) 17.e4 Bc3 (17...Qf4 18.Re1+=) 18.Bc3= Ne4 (18...Qf4 19.Ba5 Nbd7 20.e5=) 19.Ne4 de4 20.Ba5 Qd6 (better is 20...Rfd8=) 21.Bb4 (better is 21.Bb6!? Qb6 22.Qc4=) 21...Ra1–/+ 22.Bd6 Rb1 23.Kh2 Rc8 (23...Rd8 24.Bc7 Rd5 25.Bb6 Rdb5 26.Bc5+–) 24.Qe4 Nd5 (worse is 24...Rb5 25.Qb7 c3 26.Bc5+–) 25.Qg4 (25.Qe2 b6–/+) 25...Nf6 (25...Rb5 26.Be5 g5 27.Qh5–/+) 26.Qe2 Rb5 (26...b6 27.Be5 Nd7 28.Kg3–/+) 27.Bc5+= Rb2 28.Qc4 Nd7 (28...Ne4 29.f4–/+) 29.f4 (29.Qc3 Rb1 30.Qa5 Nc5 31.dc5 Rb2–+) 29...g6 (29...Nc5 30.dc5 Rb1–/+) 30.c3 (30.Qc3!? Rb1 31.g4+=) 30...Nc5 (30...b5!? 31.Qd3 Nc5 32.dc5 Rc5 33.Qd8 Kh7 34.h4–+) 31.dc5 Rd8 (31...Rd2 32.Qb5–/+) 32.c6+= bc6 33.Qc6 Rdd2 34.c4 (34.Qc8 Kg7 35.Kg3 Rg2 36.Kf3 Rh2–+) 34...Rg2 (34...g5 35.c5–/+) 35.Qg2 Rg2 36.Kg2 Kf8 37.Kf3 (37.h4 Ke7 38.Kf3 Kd7–/+) 37...Ke7 (37...g5 38.c5–+) 38.Ke4 (38.h4!?–/+) 38...f6 39.Ke3 (39.c5 g5–+) 39...Kd6 (39...g5 40.Kf3–+) 40.Kd4 g5 41.fg5? (41.c5 Kc6 42.h4 gf4 43.Kd3 Kc5 44.Kc3–+) 41...hg5 42.Ke4 Kc5 (42...Kc5 43.Kd3 f5–+) 0–1. Gutierrez,Marcelo – Fusco,Leonardo, Buenos Aires Intercoop, 2002.

8.c4 Bb5 9.cb5 Nbd7 10.0–0 Be7 11.a4 b6 12.d3 Qc7 13.h3 Bd6 14.Nc3 Ne5 15.Ne5 Be5 16.f4 Bd6 17.Ne2 Qe7 18.Bc3 e5 19.fe5 Be5 20.Be5 Qe5 21.Qd2 g5 (better is 21...0–0!?+=) 22.d4 Ne4 23.Qb2 Qg7 24.Rf5 0–0 25.Rd5 f5 26.Re5 Rae8 27.Re8 Re8 28.a5 Nd6 29.a6 cd4 30.Nd4 Qe7 (30...Qe5 31.Ra3+–) 31.Qb3 Kh8 (31...Qf7 32.Qf7 Kf7 33.Rc1+–) 32.Nc6 (better is 32.a7 Ra8 33.Qd5 Qe3 34.Kh1 Ra7 35.Ra7 Qc1 36.Kh2 Qf4 37.g3 Qf2 38.Qg2 Qg2 39.Kg2+–) 32...Qg7 33.Rd1 Nc8 (33...Ne4 34.Nd8 Qe7 35.Qb2 Nf6 36.Qa1 Qe3 37.Kh1+–) 34.Qa2 Qc3 35.Qa1 Qa1 36.Ra1 Nd6 37.Nd4 Ra8 38.Rc1 Nb5 39.Nb5 Ra6 40.Rc6 Kg7 41.Nd4 Ra5 42.Rb6 h6 (42...Kf7 43.g4 fg4 44.hg4+–) 43.Rb5 (better is 43.g4!? fg4 44.hg4 Ra2+–) 43...Rb5 44.Nb5 Kf6 45.Kf2 h5 46.Kf3 Ke5 47.Nc3 Kf6 48.Ne2 (better is 48.g4 hg4 49.hg4 Ke6+–) 48...h4 (48...Ke5+–) 49.g3 hg3 50.Ng3 Ke5 (50...g4 51.hg4 fg4 52.Kg4+–) 51.Nh5 (better is 51.Nf5 Kf6+–) 51...g4 52.hg4 fg4 53.Ke2 (53.Kg4?! Ke4=) 53...Kf5 54.Ng3 Kg5 55.e4 (55.Kd3!? Kf6+–) 55...Kf4 56.Kf2 Kg5 57.Ke3 Kf6 58.Kf4 Ke6 59.Kg4 Kf6 (59...Ke5 60.Kf3 Kf6+–) 60.Kf4 Ke6 61.e5 Ke7 62.Kf5 Kf7 63.e6 Kg7 64.Ne4 Kf8 65.Kf6 1–0. Hal1958 – Jaska1965, playchess.de, 2002.

8.Be2 Bd6 =.

6.Nf3 Be7

7.a4 0–0 8.Na3 Nbd7 (8...c4 9.Be2 (9.g3 Nbd7 10.Bg2 Nc5 11.Bd4 ab5 12.Nb5 Bd7 13.Ne5) 9...Nbd7 10.0–0 Qc7 11.g3 h6 12.Rb1 Qa5 13.ba6; 8...Ne4 9.Bd3 (9.Be2 Nd7 10.0–0 Qa5 11.ba6 ba6 12.Rb1 Rb8 13.d3) 9...Nd7 10.0–0 f5 11.Ne5 Ne5 12.Be5 Bd7 13.f4) 9.c4 (9.Be2 Ne4 10.0–0 Nb6 11.c3 c4 12.Qc2 Nc5 13.a5) 9...ab5 (9...Ne4 10.Bd3 Bf6 11.Qc2 Bb2 12.Qb2 Ndf6 13.0–0) 10.Nb5 b6 (10...Nb6 11.cd5 ed5 (11...Nbd5 12.Bc4 Ne4 13.0–0) 12.Be5+= Nc4 13.Bc4) 11.Ne5 (11.Bd3 Bb7= (11...Ne4 12.0–0 Bb7 13.Qc2) 12.0–0 Ne4 13.Qc2; 11.Be2 Bb7 12.0–0 Ne4 13.d3) 11...Bb7+= 12.Qf3 (12.Bd3 d4 13.Nd7) 12...Ne5 (12...Ne4 13.Bd3) 13.Be5 Qd7 14.Qg3 Bc6 (14...Rfd8 15.Bc3–/+) 15.Bd3 Rfc8 (15...Ra5 16.Bc3 Ra6 17.0–0+=) 16.0–0= Ne8 (16...dc4 17.Bc4 Bb5 18.Bb5 Qd2 19.Rfd1+=) 17.Rfb1 Bf6 18.Ra2 (18.Nc3 Be5 19.Qe5 dc4 20.Bc4 Nd6=) 18...Ra5 (18...Be5 19.Qe5 Bb5 20.cb5+=) 19.Nc3 (19.Bc3 Bc3 20.Nc3 d4 21.ed4 cd4+=) 19...Bd8 (19...Be5 20.Qe5 d4 21.Ne2+=) 20.Qh3 (20.cd5 Bd5 21.Rab2 Bc6=) 20...h6 21.Qg4 Rca8 (21...Bf6 22.f4=) 22.Rab2 (22.cd5 Bd5 23.Bc4 Bc4 24.Qc4 f6=) 22...dc4+= 23.Bc2 Bf6 (23...f6 24.Bg3=) 24.Bf6= Nf6 25.Qc4 Nd5 26.Qd3 (26.Nd5 Qd5 (worse is 26...Bd5 27.Qc3+/–) 27.Qd5 ed5 (worse is 27...Bd5 28.Rb6 f5 29.f3+/–) 28.Rb6 Ba4 29.Rb8 Be8=) 26...Nf6 (26...g6 27.Bd1=) 27.Rb6+= Qc7 (better is 27...Qd3!? 28.Bd3 Ba4 29.Rb8 Rb8 30.Rb8 Be8=) 28.f3 g6 29.Qc4 (29.e4 Nd7 30.R6b2 Ne5+/–) 29...Kg7 (29...Nd5 30.R6b2+/–) 30.R6b2 Nd5 (30...Qd8 31.Nb5 Bb5 32.ab5 Qd2 33.Qd3 Qd3 34.Bd3=) 31.Nb5 Qe7 32.Bd1 Kg8 (32...Nb6 33.Qc3 Kh7 34.d4+/–) 33.Rc1 Nb6 (33...Bb5 34.Rb5 Rb5 35.Qb5+/–) 34.Qc5 Qc5 35.Rc5 Bb5 36.ab5?? (better is 36.Rbb5 Rb5 37.Rb5 (worse is 37.ab5 Ra1+=) 37...Na4 38.f4+/–) 36...Ra1+= 37.Kf2 Rd1 38.Rc6 Rb8 39.e4 Ra1 40.Ke3 Ra5 41.Rb4 Kf8 42.Kd4 Nd7–+ 43.Rc7 Ke8 44.b6 Rb6 45.Rb6 Nb6 46.f4 Nd7 47.g4? Ra4 48.Kd3 Kd8 49.Rc6 Nf6 50.f5 Ng4 51.Rb6 Ke7 52.fg6 fg6 53.Rb7 Kf6 54.h4 Nf2 55.Ke3 Ne4 56.d4 Nd6 57.Rh7 0–1. Lazar,An (2110) – Schneider,Ve (2190), TCh–HUN, 2005. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 e6 4.a3 c5 5.b5 a6 6.e3 Be7)

7.a4 0–0 8.Nc3 d4 (8...ab5 9.ab5 Ra1 10.Qa1 Qd6 11.Na4 Nbd7 12.Be2 g6 13.Ne5; 8...h6 9.Bd3 c4 10.Be2 Nbd7 11.0–0 Qc7 12.d3 Rd8 13.a5) 9.ed4 (9.Ne2 Bd7 10.ed4 ab5 11.ab5 Ra1 12.Qa1 Bb5 13.Ng3) 9...cd4 10.Ne2 ab5 11.ab5 Ra1 12.Ba1 d3 13.Ned4.

7.a4 0–0 8.Be2 A) 8...ab5 9.ab5 (9.Bb5 Nc6 10.0–0 Bd7 11.Nc3 h6 12.Qe2 Bd6 13.h3) 9...Ra1 10.Ba1 Nbd7 11.0–0 c4 12.Nc3 Qc7 13.Bb2; B) 8...h6 9.Na3 (9.0–0 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.Bb2 Qc7 13.c4) 9...c4 10.0–0 Ne4 11.ba6 Na6 12.d3 c3 13.Bc1; C) 8...Nbd7+= 9.Nc3 (9.0–0 ab5 10.Bb5 Bd6 11.Nc3 c4 12.d3 cd3 13.cd3) 9...ab5 10.ab5 Ra5 11.0–0 Bd6 12.Ra5 Qa5 13.Qa1.

7.a4 ab5 8.Bb5 (8.ab5 Ra1 9.Ba1 Nbd7 10.Nc3 0–0 11.Be2 e5 12.0–0 e4 13.Ng5) A) 8...Bd7 9.Be5 (9.Bd7 Nbd7 10.Nc3 0–0 11.0–0 Qb6 12.Nb5 c4 13.Qe2) 9...Bb5 10.ab5 Ra1 11.Ba1 Nbd7 12.Nc3 0–0 13.0–0; B) 8...Nc6 9.Nc3 (9.0–0 0–0 10.Nc3 Bd7 11.Qe2 Bd6 12.h3 h6 13.Ba3) 9...0–0 10.0–0 Bd7 11.Qe2 Bd6 12.h3 h6 13.Ba3.

7.a4 Bd6 8.Nc3 A) 8...0–0 9.Be2 (9.Bd3 e5 10.e4 c4 11.Be2 de4 12.Ng5 Bf5 13.g4) 9...e5 10.d3 h6 11.0–0 Be6 12.g3 Nbd7 13.ba6; B) 8...Nbd7 9.Be2 0–0 10.0–0 h6 11.h3 c4 12.d3 cd3 13.cd3; C) 8...h6 9.Bd3 (9.Be2 0–0 10.0–0 e5 11.d3 Be6 12.h3 Nbd7 13.ba6) 9...0–0 10.g3 e5 11.ba6 ba6 12.0–0 e4 13.Nd5.

7.a4 Nbd7 A) 8.Be2 ab5 (8...0–0 9.0–0 ab5 10.Bb5 Bd6 11.h3 c4 12.Qe2 Nc5 13.Bd4; 8...Bd6 9.Nc3 0–0 10.0–0 b6 11.ba6 Ba6 12.Ba6 Ra6 13.Qe2) 9.Bb5 0–0 10.0–0 Bd6 11.Nc3 e5 12.d3 d4 13.Ne2; B) 8.Nc3 e5 9.Ne2 (9.ba6 ba6 10.Rb1 0–0 11.g4 d4 12.g5 dc3 13.gf6) 9...e4 10.Nh4 0–0 11.Nf5 Ne5 12.ba6 ba6 13.Nh6.

7.a4 h6 A) 8.Be2 A1) 8...0–0 9.Na3 (9.0–0 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.c4 Qc7 13.g3) 9...Nbd7 10.0–0 Qc7 11.c4 Ne4 12.d3 Nd6 13.Qb3; A2) 8...ab5 9.ab5 (9.Bb5 Nc6 10.Nc3 Bd7 11.0–0 0–0 12.Qe2 Bd6 13.h3) 9...Ra1 10.Ba1 Nbd7 11.h3 0–0 12.0–0 Qc7 13.c4; B) 8.c4 B1) 8...0–0 9.Nc3 (9.Bd3 dc4 10.Bc4 ab5 11.Bb5 Nc6 12.0–0 Bd7 13.Nc3) 9...d4 10.ed4 cd4 11.Ne2 Qc7 12.Bd4 Nbd7 13.Ng3; B2) 8...Nbd7 9.Nc3 (9.ba6 0–0 10.ab7 Bb7 11.Nc3 Rb8 12.cd5 ed5 13.Bd3) 9...0–0 10.ba6 ba6 11.Bd3 Rb8 12.Rb1 d4 13.ed4; B3) 8...ab5 9.ab5 (9.cb5 0–0 10.Be2 b6 11.0–0 Nbd7 12.Nc3 Bb7 13.Qc2) 9...Ra1 10.Ba1 Nbd7 11.Be2 Qc7 12.0–0 0–0 13.Bb2; C) 8.h4 C1) 8...0–0 9.Nc3 d4 10.Ne2 de3 11.de3 Nbd7 12.Ng3 Qc7 13.Be2; C2) 8...Nbd7 9.Nc3 (9.h5 0–0 10.Be2 ab5 11.ab5 Ra1 12.Ba1 Bd6 13.c4) 9...0–0 10.ba6 ba6 11.Rb1 Rb8 12.Ba3 Rb1 13.Qb1; C3) 8...ab5 9.ab5 Ra1 10.Ba1 0–0 11.Bb2 Nbd7 12.Be2 Nb6 13.0–0; D) 8.Nc3 D1) 8...Nbd7 9.Be2 Bd6 10.g3 0–0 11.0–0 e5 12.d3 d4 13.Ne4; D2) 8...Bd6 9.Be2 (9.h3 0–0 10.Qb1 e5 11.ba6 ba6 12.Bd3 Bc7 13.Qa2) 9...0–0 10.0–0 e5 11.d3 Be6 12.h3 Nbd7 13.ba6; D3) 8...0–0 9.Bd3 (9.h4 d4 10.Ne2 de3 11.de3 Nbd7 12.Ng3 Qc7 13.Be2) 9...c4 10.Be2 Nbd7 11.0–0 Nc5 12.Ne5 Bd7 13.f4.

7.ba6 Na6 8.Be2 0–0 +=.

7.Nc3 0–0+= 8.Be2 ab5 (8...Qd6 9.ba6 ba6 10.Rb1+=) 9.Nb5= Nc6 (9...Bd7 10.0–0=) 10.0–0 Qb6 (10...Nd7 11.Nc3=) 11.Rb1 c4 12.Nfd4 (12.d3 cd3 13.Bd3 Nd7=) 12...Bd7 (12...e5 13.Nc6 bc6 14.Nc3+=) 13.d3 (13.f4 Nd4 14.Bd4 Qa5+=) 13...Ne5 (13...Nb8 14.dc4 dc4 15.Bc4+/–) 14.dc4 (14.dc4 Bb5 15.Nb5 Nc4 16.Bc4 dc4 17.Bd4=; 14.Bc3 Rfc8=). Lielmezs,Girts – Oseledchuck,Sergey, IECG, 2004.

7.d4 0–0 8.c4 ab5 9.cb5 Nbd7 (9...c4 10.Qc2–/+) 10.Be2 b6 11.0–0 Qc7 Black prepares the advance c4 12.Qc2 Bb7 13.a4 c4 14.Nc3 Rfc8 15.Rfc1 Bd6 16.Ba3 Re8 17.h3 g6 (17...Ba3 18.Ra3 Rec8 19.Raa1=) 18.Bd6 Qd6 19.Bf1 h6 20.g3 Nh5 21.Bg2 (21.e4 Rec8 22.e5 Qe7+=) 21...f5 (21...Nhf6 22.Rd1=) 22.Qe2 (22.Nd2 Rec8=) 22...Nhf6= 23.Nd2 e5 (23...Ne4 24.Qd1=) 24.Nf3 (better is 24.Nc4 Qe6 25.de5 Ne5 26.Ne5 Qe5 27.Qd1+/–) 24...e4 25.Nh2 g5 26.Nf1 Nf8 27.f4 Re7 (27...g4 28.hg4 fg4 29.Nd2+=) 28.Ra2 (28.fg5 hg5 29.Qf2 Bc8+=) 28...Bc8 (28...g4 29.Rac2+=) 29.Rca1 (29.fg5 hg5 30.Rca1 Rh7–/+) 29...Be6 30.Qb2 Ra5 31.Rb1 Rg7 32.Qe2 (32.Rc1 gf4 33.gf4 Kh7+=) 32...Bf7 (32...gf4 33.gf4 Ng6 34.Kh2+=) 33.Qe1 Bh5 (33...g4 34.Rc1+=) 34.Rf2 (34.fg5 hg5 35.Rf2 Qe6=) 34...Bg6 35.Kh2 Ne6 36.Kh1 Ra8 37.Ra2 Ra5 38.Rf2 Kh8 39.Ra2 Bh7 40.Rba1 Qf8 41.Kh2 Qf7 42.Qe2 Nc7 43.Qd1 Qg6 44.Qe2 Bg8 45.Qe1 Bf7 46.Qe2 Be6 47.Qe1 Nfe8 48.Qe2 Nd6 49.Qf2 0–1. Filippov,Vladimir (1990) – Pozhidaev,Eduard (2100), Voronezh Region–ch Seniors, 2008.

5.b5 b6

6.c4 d4?? 7.ed4?? Bb7 8.Nf3 Nbd7 +=.

6.c4 d4?? 7.ed4?? cd4?? 8.Qf3+– Bb7 9.Qb7 Nbd7 10.Bd4 Be7 11.Nc3 0–0 12.Qf3 Ne8 13.Bd3 e5 14.Be3 f6 15.Be4 Rc8 16.Bd5 Kh8 17.Ne4 Nc5?? 18.Nc5 Bc5 19.Bc5 Rc5 20.Ne2 Nc7 21.Nc3 g6 22.0–0 f5 23.Rfe1 e4 24.Qf4 Nd5 25.cd5 Qf6 26.a4 g5 27.Qe3 Re8 28.d4 Rc4 29.Red1 f4 30.Qd2 Rec8 31.Ne4 Qg6 32.d6 (32...Qe4 33.d7+–; better is 32.Qd3+–) 1–0. revbodio – qtip1, Caissa.com, 2004.

6.c4 d4?? 7.Qf3 Nd5 8.cd5 Bb7 +–.

6.c4 Bd6 7.cd5 ed5 8.Qf3 =+.

6.c4 Be7 7.Nf3 0–0 8.Be2 Bb7 9.0–0 dc4 10.Bc4 Nbd7 11.d4 cd4 12.Bd4 Rc8 13.Nbd2 Ne4 14.Bb2 (14.Ne4 Rc4 15.Qd3 Rc7+=) 14...Ndf6 (14...Nd2!? 15.Nd2 Nc5+=) 15.Rc1= Nc5 16.Nd4 Bd6 17.N2f3 Nce4 18.Qe2 Re8 19.Rfd1 (19.Nc6 Bc6 20.bc6 Rc6=) 19...Qe7 20.a4 Bb4?? (better is 20...Ng4 21.Rf1 Rc7+=) 21.Ne5+/– Bd6 22.Nec6 Bc6 23.Nc6 Qc7 24.h3 h6 (24...Nc5 25.Bf6 gf6 26.Qg4 Kh8 27.Qh4+/–) 25.Bb3 (25.Bd3!? Nc5+–) 25...Nc5+/– 26.Bc2 Nd5? (better is 26...Nfe4!?+/–) 27.Qg4 Bf8 28.Be5 Qb7 29.e4 (29.Bb1!?+–) 29...Ne7+/– 30.Ne7 Qe7 31.Bf4 Kh8 32.Be3 Nb7 33.e5 Nc5 34.f4 (34.Rd4 Red8+/–) 34...Red8 (34...Na4 35.Ba4 Qa3 36.Qe2 Rc1 37.Rc1 Qa4 38.Qd3+=) 35.Bf2 (35.f5 Rd1 36.Rd1 Qc7+=) 35...Rd1 36.Rd1 Nb7 37.Qe2 Nc5 38.Rd2 Qb7 39.Qd1 Kg8 40.Rd8 ˝–˝. algernon (2510) – truss (2600), net–chess.com, 2015.

6.c4 Be7 7.Nf3 Bb7 8.Be2 Nbd7 9.0–0 0–0 10.Qc2 h6 (10...dc4 A) 11.Qc4 A1) 11...Bd6 12.d4 (12.Nc3 Bf3 13.Bf3 Ne5 14.Qe2 Nf3 15.Qf3; 12.Qc2 a6 13.Nc3 Qc7 14.ba6 Ba6 15.Ba6; 12.Ng5 Qe7 13.Nc3 a6 14.Qh4 Rfd8 15.ba6) 12...Rc8 13.Nbd2 Bd5 14.Qd3 cd4 15.Bd4; A2) 11...a6 12.Qf4 ab5 13.Bb5 Ne4 14.d3 g5 15.Qg4; B) 11.Rc1 B1) 11...a6 12.ba6 (12.Bc4 Bd6 13.ba6 Bf3 14.gf3 Qb8 15.f4) 12...Ba6 13.Bc4 Bc4 14.Qc4 b5 15.Qc2; B2) 11...Bd6 12.Qc4 (12.Bc4 a6 13.ba6 Bf3 14.gf3 Qb8 15.f4) 12...a6 13.Nc3 Bf3 14.Bf3 Ne5 15.Qe2; C) 11.Bc4 C1) 11...Bd6 12.d3 (12.Be2 a6 13.Nc3 Qc7 14.ba6 Ba6 15.Ba6) 12...Bf3 13.gf3 Ne5 14.Nd2 Ne8 15.f4; C2) 11...a6 12.ba6 Ba6 13.Ba6 Ra6 14.Nc3 Ra5 15.Rfd1; C3) 11...Qc7 12.Be2 (12.d3 Bf3 13.gf3 Ne5 14.Nd2 Rfd8 15.Rfd1) 12...Ng4 13.e4 f5 14.Qb3 Qd6 15.Bc4; C4) 11...Bf3 12.gf3= Nd5 13.Rd1 Bf6 14.d4 cd4 15.Bd5) 11.cd5= (11.d4 A) 11...dc4 12.Nbd2 (12.dc5 Nc5 13.Rd1 Nd3 14.Nbd2 Nb2 15.Qb2) 12...a6 13.ba6 Ra6 14.Bc4 Ra7 15.Rfd1; B) 11...cd4 12.Nd4 (12.Bd4 dc4 13.Nbd2 a6 14.ba6 Ba6 15.a4) 12...Rc8 13.Nd2 a6 14.Rfd1 Nc5 15.cd5; C) 11...Rc8 12.Nbd2 cd4 13.Nd4 a6 14.Rfd1 ab5 15.Nb5; D) 11...a6 12.cd5 ed5 13.ba6 Ba6 14.dc5 Be2 15.Qe2; 11.d3 Bd6 (11...dc4 12.dc4 Qc7 13.Nc3 Bd6 14.h3 Rfd8 15.Rad1) 12.Nbd2 (12.cd5 ed5 13.Nc3 Re8 14.d4 c4 15.Rfc1) 12...a6 13.ba6 Ra6 14.cd5 ed5 15.Nb1) 11...Bd5 (11...Nd5 12.Nc3= (12.Rd1 Bf6 13.Nc3 a6 14.e4 Nf4 15.d4; 12.d4 Rc8 13.dc5 Rc5 14.Qa4 Qb8 15.Rd1) 12...a6 13.Nd5 ed5 14.Rfc1 Re8 15.a4; 11...ed5 12.Nc3 (12.Rc1 a6 13.Nc3 Re8 14.Qf5 Nf8 15.d4; 12.Qf5 a6 13.Nc3 ab5 14.Bb5 Bd6 15.Rfb1; 12.Re1 Re8 13.Nc3 a6 14.Rab1 ab5 15.Nb5) 12...a6 13.Rfb1 Re8 14.d4 c4 15.a4) 12.Nc3 (12.Rd1 Bb7 13.d4 a6 14.Nc3 ab5 15.Nb5) 12...Bb7 13.a4 (13.Rfd1 a6 14.d4 ab5 15.Nb5) 13...Qc7 14.d3 Rfd8 (14...Bd6 15.Ne4) 15.g3 (15.Rfd1=) 15...Nd5 16.Nd5 Bd5 17.a5 Bf6 (17...ba5 18.e4 Bb7 19.Bc3=) 18.e4 Bb7 19.a6 Bc8 20.d4 g6 (20...e5 21.Rfd1 ed4 22.Bd4+=) 21.Rfd1+/– Bg7 22.e5 Nf8 23.Rac1 Qe7 (23...Rb8 24.Ba1+/– (24.dc5?! Rd1 25.Rd1 bc5+=)) 24.dc5 bc5 (24...Rd1 25.Bd1 (25.Qd1?! bc5 26.Ba3 Nd7+–) 25...bc5 26.Qc5+–) 25.Rd8 Qd8 26.Qc5 Bd7 27.Qc7 1–0. marr – bqyp, internet, 2010.

6.d3 Bb7 7.Nd2 Nbd7 8.c4 Be7 9.Ngf3 Rc8 10.a4 0–0 11.Ra2 Qc7 12.Qa1 Bd6 13.Be2 Rfe8 14.Bc3 e5=+ 15.cd5 Nd5 16.Nc4 Nc3 17.Nd6 Qd6 18.Qc3 Nf6 19.0–0 e4 20.de4 Ne4 21.Qc1 Rcd8 22.Rd1 Qe6 23.Rd8 Rd8 24.Ra3 Qf6 25.Bd3 Ng5 26.Nd2 Rd3! 27.Rd3 Nh3! 28.gh3 Qg6 29.Kf1 Qd3 30.Ke1 Bc8 31.Qd1 Bh3 32.Qf3 Bc8 33.Qc6 Qd7 34.Nc4 Qd8 35.Qa8 Qc7 36.a5 Qb7 37.Qb7 Bb7 38.ab6 ab6 39.Nb6 Kf8? 40.Kd2 Ke7= 41.Nc4 (41...Bd5 42.b6+=). Andersson,Lars H – Persson,Robert, corr SSKK 1–418, 1988.

6.d4 a6 7.Nf3 +=.

6.d4 c4 7.Nd2 (7.Qf3 Qc7=) 7...Qc7 (7...a6 8.ba6 Bd6 9.Ngf3+=) 8.c3 (8.Ngf3!?=) 8...Bd7 9.e4 (9.Qa4+=) 9...a6 (9...Bb5 10.e5 Nfd7 11.Ngf3–/+) 10.ba6 (10.e5 Ng8+=) 10...Ra6+= 11.Ngf3 (better is 11.ed5 ed5 12.Qe2 Be7 13.Ngf3–/+) 11...Bd6?? (11...Ne4 12.Ne4 de4 13.Ne5+=) 12.g3?? (better is 12.e5+–) 12...Qa7 (12...Ne4 13.Ne4 de4 14.Ne5 Be5 15.de5–/+) 13.Bg2 (13.ed5 ed5 14.Qe2 Be7+=) 13...Ba4 (13...Ne4 14.Ne4 de4 15.Ne5 Be5 16.de5+=) 14.Qe2+= (14.Qe2 de4 15.Nc4=). Hoszowski,Piotr – Lach,Zdzislaw, corr 1AMM Poland, 1990.

6.Qf3 a6 =+.

6.Nf3 a6 7.a4 a5 8.Be2 c4 (8...Bd6 9.0–0=) 9.0–0 Be7 10.c3 (10.Nc3!?+=) 10...0–0 11.d3 Qc7 12.dc4 dc4 13.Nbd2 Bb7 14.Qc2 Nbd7 15.Rfd1 Rac8 16.g3 (16.Nd4 Ne5=) 16...Bd5 17.e4 Bb7 18.Nd4 (better is 18.Bc4 Rfd8 19.Bf1=) 18...Qe5 Increases the pressure on e4 (18...Ne5 19.f4 Neg4 20.e5–/+ (20.Bc4?? Ne3 21.Qd3 Nc4 22.Qc4 Qc4 23.Nc4 Rc4–+)) 19.N4f3 (better is 19.f3!?+/–) 19...Qb8 20.Nc4 (20.Bc4!? Qa8 21.Bd3=) 20...Be4+= 21.Qc1?? (21.Qb3 Bd5 22.Nd4 Ne5–+) 21...Qb7 (21...Rc4 22.Bc4 Bf3 23.Rd4–+) 22.Qe3?? (22.Ng5 Bd5 23.Ne3 h6 24.Nd5 ed5+=) 22...Bc2 (better is 22...Rc4 23.Bc4 Bf3–+) 23.Rd2 Bb3 24.Nce5 Ne5 25.Ne5 Qe4 26.Qe4 Ne4–/+ 27.Rd3 Bc2 28.Re3 Bf6?? 29.Rc1 Be5 30.Rc2 f5 31.f3 Nf6?? 32.Re5+– Rfe8 33.Kf2 Rc5 34.Rc5 bc5 35.c4 Rd8 36.Bc3 Ra8 37.Rd2 Kf7 38.Rd6 Ke7 39.Ra6 Ra6 40.ba6 Nd7 41.Ba5 Nb8 42.a7 Nc6 43.a8Q (43.a8Q Na5 44.Qa5+–) 1–0. Neumann,Frank (1650) – Pieleck,Rudi (1770), RSS7E schnell–31, 2008.

6.Nf3 a6 7.Nc3 Bd6 8.ba6 Ba6 9.Nb5 Be7 =.

6.Nf3 c4 7.d3 Bb7 8.dc4 Bc5 9.cd5 Bd5 (9...Qd5 10.Qd5 Bd5 11.Bd3+/–) 10.c4 Bf3 11.Qd8 Kd8 12.gf3 Ke7 13.Bg2 Nbd7 14.Nc3 Ne5 15.f4?? (better is 15.Nd5! ed5 16.Be5 dc4 17.Bf1+=) 15...Nd3–+ 16.Ke2 Nb2 17.Ba8 Ra8 18.Ra2 (18.Rhc1 a6–+) 18...Nc4 19.Na4 Rc8 20.Nc3 Rd8 (< 20...Na3 21.Rha1 Nc4 22.Ra7 Ke8 23.Ra8–+) 21.Rd1 (21.Rc1 Ne8–+) 21...Na3 (21...Rd1 22.Kd1 Na3 23.Rb2–+) 22.Rd8 (better is 22.Rda1 Nc4 23.Ra7 Ke8 24.h3–+) 22...Kd8 23.Rd2 Kc7 24.Na4 (24.Rb2 Kb7–+) 24...Nc4 (better is 24...Nb5 25.Kd3 Nd5–+) 25.Rc2 Na3?? (better is 25...Nd6 26.Nc5 bc5 27.Rc5 Kb7–+) 26.Nc5?? (26.Rd2 Nb5 27.Kd3–+) 26...bc5 (better is 26...Nc2 27.Nd3 Nd7–+) 27.Rc5 Kb7 (27...Kd6 28.Rc8 Nb5 29.Rf8–+) 28.Kd3 (28.f5 ef5 29.h3 g6–+) 28...Nd5 (28...h6 29.e4–+) 29.Rc1? (better is 29.f5–+) 29...Nb5 30.Rb1 a6 31.Ke4 (31.Rg1 g6 32.h3–+) 31...Ndc3 32.Ke5 Nb1 33.f5 ef5 34.Kf5 N5c3 35.f4 (35.Ke5 a5 36.Kd4 a4–+) 35...Nd2 (better is 35...a5 36.Ke5 a4 37.f5–+) 36.Ke5 Nf3 37.Kf5 Nh2 38.e4 Kc7 (better is 38...a5!? 39.Ke5 Nf3 40.Kf5–+) 39.e5 Nd5 40.Ke4 Kc6 41.f5 Ng4 42.e6 Nc3 (42...fe6 43.fe6 Ngf6 44.Kf3–+) 43.Kf4 fe6 44.Kg4 ef5 45.Kf5 a5 46.Ke6 a4 47.Kf7 g6 48.Kg7 a3 49.Kh7 g5 50.Kg6 g4 51.Kf6 g3 52.Ke5 g2 53.Kd4 g1Q 54.Kc3 a2 55.Kb4 a1Q (56.Kc4 Qgd4 57.Kb3 Qab2#) 0–1. OPA – palma22, Live Game Caissa's Web, 2004.

6.Nf3 Bd7 7.a4 a6 8.c4 dc4 (8...Bd6 9.d4+=) 9.Bc4= ab5 10.ab5 Ra1 11.Ba1 Be7 12.0–0 0–0 13.d4 Ne4 14.Nbd2 Nd6 Attacking the isolated pawn on b5 15.dc5 (15.Qb3 Qe8+=) 15...Nc4= 16.Nc4 Bb5 17.Qc2 bc5?? (17...Bc4 18.Qc3 Bf6 19.Qc4 Ba1 20.Ra1+=) 18.Rd1?? (18.Qb2 f6 19.Qb5 Qd7+–) 18...Qc7?? (18...Bc4 19.Rd8 Rd8 20.Ne1+=) 19.Be5?? (better is 19.Qb2 Bf6 20.Qb5+–) 19...Qb7 20.Bd6 Bd6 21.Nd6+= Qa6 22.Nb5 Qb5= 23.Rb1 Qc6+= 24.Ne5 Qd5 25.Nd3 The isolani on c5 becomes a target 25...Na6 26.Rb6 c4 27.Nf4 Qa5 28.Rb1 c3 29.Ne2+= Rb8 30.Rb8= Nb8 31.Qc3 ˝–˝. Hal1958 – Learche, playchess.de, 2006.

6.Nf3 Bd7 7.c4 a6 8.a4 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 Ne4 12.Ne5 Bd6?? (12...Nd6 13.d3 Be7+= (13...Bb5? 14.Bb5 Nb5 15.Qa4+–)) 13.d3?? (better is 13.Qg4 Nf6 14.Qg7+–) 13...Qf6 (13...Nf2 14.Kf2 Qf6 15.Qf3 Be5 16.Qf6 gf6 17.Nc3=) 14.Qf3 (14.de4 Be5 15.Be5 Qe5=) 14...Be5 (14...Nf2 15.0–0 Be5 16.Be5 Qe5 17.Qf2=) 15.Be5= Qe5 16.Qe4 (worse is 16.de4 Qb2 17.0–0 Bb5–/+) 16...Qe4 17.de4 Ke7 18.Ke2 Rd8 19.Nd2 Be8 20.Ra1 Rd7 21.e5 Rc7 22.f4 Nd7 23.Ra6 f6 24.ef6 gf6 25.e4 Rb7 26.h3 e5 27.f5 h6 28.Ke3 Nf8 29.Nb1 Nh7 (better is 29...Nd7!?+/–) 30.Nc3+– Ng5? (better is 30...Kf8+–) 31.Nd5 Kf8 32.Rb6 (better is 32.Nf6!? Bf7 33.Rb6 Rb6 34.Nd7 Ke8 35.Nb6 Bc4 36.Nc4 Nf7+–) 32...Rb6 33.Nb6 Nf7 34.Bf7 Kf7 35.Nc4 Ke7 36.b6 Kd7 37.Na5 Kd6 38.Nb7 (better is 38.g4!? Bb5+–) 38...Kc6 39.Nc5! Kb6 (39...Kc5 40.b7 Passed pawn) 40.Nd3 Kc6? (40...Kc7 41.Nb4 Bf7 42.Nd5 Bd5 43.ed5+–) 41.h4 (41.Nb4 Kd7 42.Nd5 Bf7 43.Nf6 Kd6+–) 41...Bh5? (41...Kd6 42.g4+–) 42.Nf2 (better is 42.Nb4 Kc5 43.Nd5+–) 42...Kd6 43.g4 Be8 44.Nh3 Ke7 45.Kd2 Kf7 46.Kc3 Bc6 47.Nf2 Bb5 (47...Ke7 48.Kd2+/–) 48.Kb4 (48.g5!? hg5 49.hg5 fg5+–) 48...Be2+/– 49.Kc5 Bf3 (better is 49...Ke7!?+/–) 50.Kd6 h5? (50...Be2 51.g5! fg5 52.hg5 hg5 53.Ke5+–) 51.g5 (51.gh5 Bh5 52.Nd3 Bd1+–) 51...Bg2 (51...Be2 52.g6 Kg7 53.Nh1+–) 52.g6 Kg7 53.Kd5 Bf1 54.Nh1 (better is 54.Nd1 Bd3+–) 54...Bg2 55.Ng3 Bf3 56.Kc4 Bd1 57.Kd3 Kf8 58.Nh1 Kg7 59.Nf2 Bb3 60.Kd2 Bc4 61.Nh1 Kh6 62.Ng3 Ba2 63.Kc3 Bg8 64.Kb4 Ba2 65.Kc5 Bb3 66.Kd6 (66.Ne2!? Kg7+–) 66...Bd1 67.Nf1 Bc2 68.Nd2 Bd1?? (68...Kg7+–) 69.Nf1 (better is 69.Ke7 Bc2 70.Kf6 Be4 71.Nc4 (71.Ne4?!) 71...Bf5 72.Kf5 Kg7 73.Kg5 e4 74.Ne3 Kf8 75.Kf6 Ke8 76.g7 Kd8 77.g8Q Kd7 78.Qe6 Kd8 79.Nd5 e3 80.Qd6 Ke8 81.Nc7) 69...Bc2 70.Nd2 Bd3?? (70...Bd1 71.Ke7 Bc2 72.Kf6 Be4+–) 71.Kd5+– Kg7 (71...Bc2+–) 72.Nc4 Bc2 73.Ne5! fe5 74.Ke5 Bb1 75.Kf4 Bd3?? (75...Kh6 76.e5+–) 76.e5 (76.Kg5 Be4 77.f6 Kf8 78.Kh5+–) 76...Kh6 77.e6 Bb5?? (77...Bc2+–) 78.Ke5 Be8 (78...Kg7 79.Kd6 Bd3 80.e7+–) 79.Kd6 Kg7 80.Ke7 (80.Ke7 Bb5 81.f6 Kg6 82.f7+–) 1–0. Kurbatov,Andrei (2135) – Ermolaev,Andrey (2270), Lipetsk op, 2010.

6.Nf3 g6 7.c4 (7.Be2 a6=) 7...Bg7= 8.d4 Nbd7 (8...a6 9.dc5 bc5 10.Be2=) 9.Bd3 (9.dc5 bc5 10.Bd3 Nb6=) 9...0–0 (9...a6 10.cd5 ed5 11.dc5 bc5 12.a4=) 10.0–0 Bb7 11.Nc3 (11.cd5 Nd5 12.Nc3 Nc3 13.Bc3 cd4 14.Nd4 Ne5=) 11...Rc8 (better is 11...dc4 12.Bc4 a6=) 12.Re1 (better is 12.cd5!? Nd5 13.Rc1=) 12...cd4–/+ 13.Nd4 dc4 14.Be2 Qc7 (14...a5 15.ba6 Ba6 16.Qd2–/+) 15.Bf3 (15.Qc2 Rfd8–/+) 15...Bf3 (15...Nc5 16.Qc2–/+) 16.Qf3 Ne5 17.Qd1 (17.Qe2!?–/+) 17...Nd3–+ 18.Re2 Ng4 (18...Nb2?! 19.Rb2 Qc5 20.Qc2–/+) 19.g3 h5 (19...Rfd8 20.Qc2–+) 20.Qa4 (20.Qd2 Rfd8–+) 20...Bd4 (20...h4 21.Ra2–+) 21.ed4 Rfd8 22.Ne4 Nb2 23.Rb2 Rd4 24.Re2 Kg7 25.Qb4 e5 26.Rc1 c3 27.Qc3?? Qc3 28.Nc3 Rdc4 29.Rec2 Nf6 30.Re1 Rc3 31.Rc3 Rc3 32.Re5 Ra3 0–1. Novotny,Vladimir – Tuma,Jiri, Czech Fed–ch U12, 1997.

6.f4 a6 7.Nf3 +=.

6.c4 Bb7

7.d3 Nbd7 8.Nd2 Bd6 9.Ngf3 0–0 10.Qc2 Qe7 11.h3 Bc7 12.a4 e5 13.e4 de4 14.de4 Nh5 15.0–0–0 (15.Rd1!?+=) 15...Nf4 16.g3 Ne6 17.Bd3 a6 18.Nh4 Nd4 19.Nf5 (19.Qc3 Qf6 20.f3 Qg5–+) 19...Qe6 (better is 19...Nf5!? 20.ef5 Bh1 21.Rh1 Rfd8–+) 20.Qb1 ab5 21.ab5 Ra4 22.g4 Rfa8 23.Rde1 Nf8 24.h4 Ng6 25.Rhg1 Nf4 26.Rg3 Rb4 27.Bf1 Qd7 28.Ree3 g6 29.Nh6 (better is 29.Nd4 cd4 30.Re1–+) 29...Kg7 30.g5 Rd8 31.Rd3 f6 32.Qa2 Ra8 33.Ra3 Nfe2 34.Be2 Ne2 35.Kc2 Ng3 36.Ra8 fg5 37.Rg8 Kh6 38.hg5 Kh5 39.fg3+= Qf7 40.Rh8= Qg7?? 41.Qa1+– Rc4 42.Kd3 Qd7 43.Kc4 Qd2 44.g4! Kh4 45.Rh7 Kg3 46.Qa3 Kg4 47.Qh3 Kf4 48.Qh4 Ke3 49.Qg3 Ke4 50.Rh4 Kf5 51.Qg4 1–0. Laco,Giuseppe (2265) – Pavlovic,Dragan (2250), Forli op, 1989. (=1.c4 Nf6 2.b4 e6 3.a3 b6 4.Bb2 Bb7 5.e3 c5 6.b5 d5)

7.cd5 ed5 8.Nf3 Bd6 =.

7.Be2 Bd6 8.Nf3 0–0 9.Nc3 Nbd7 10.0–0 e5 11.cd5 Nd5 12.Bc4 Nc3 13.Bc3 e4 14.Ne1 Be5 15.Qb3 Qf6 16.Be5 (16.f3 Qd6 17.f4 Bf6=) 16...Qe5 (16...Ne5 17.Be2+=) 17.Nc2 (17.d4 cd4 18.ed4 Qd6= (18...Qd4? 19.Rd1 Nc5 20.Rd4 Nb3 21.Bb3+–)) 17...Nf6 18.Be2 Bc8 19.f4 ef3 20.Bf3 Rb8 21.Qa4 Qc7 (21...Bf5 22.Be2=) 22.Rac1+= Be6 23.Nd4 Bd5 24.Bd5 Nd5 25.Nc6 Rb7 26.Qh4 Qd7 27.Rf3 f6 (27...Ne7 28.Ne7 Qe7 29.Qe7 Re7 30.d4+=) 28.Rh3 g5 29.Qc4 Kh8 30.Rf1 Ne7? (better is 30...Qe6!?+/–) 31.Ne5+– Qd5 32.Qd5 Nd5 33.Ng6 Kg8 34.Nf8 Kf8 35.Rf5 Rd7 36.Rhf3 Kg7 37.Rf2 Rd6 38.e4 Nf4 39.Kf1 Re6 40.e5! Re5 (40...Re5 41.Re5 Combination; 40...fe5 41.Rg5 Deflection) 41.Re5 fe5 42.g3 Nd3 43.Rf5 Kg6 44.Rf8 Nb2 45.Ra8 Nc4 46.Ra7 Nd2 47.Ke2 Nc4 48.Kd3 Nd6 49.a4 h5 (better is 49...e4 50.Kc3 e3+–) 50.Ra6 Kf5 51.Rb6 e4 52.Ke2 Ke5 53.a5 c4 (53...Nc4 54.Rc6 Na5 55.Rc5 Kd4 56.Rg5 Nc4+–) 54.a6 c3 55.a7 c2 56.Rc6 Nb5 57.a8Q Nd4 58.Kd2 (58.Kd2 Nc6 59.Qc6+–) 1–0. mikebaldini (1675) – norbertmetzger (1685), gameknot.com, 2015.

7.Nf3 a6 8.a4 ab5 9.ab5 Nbd7 10.d3 (10.Ra8 Qa8 11.d3 Bd6=) 10...Ra1+= 11.Ba1 Bd6 12.Be2 0–0 13.0–0 Qc7 14.Nbd2 Ra8 15.Qc2 e5 16.e4 de4 17.Ne4 Ne4 18.de4 Nf8 19.Rd1 Ne6 20.g3 Nd4 21.Nd4 ed4 22.Bd3 g6 23.Bb2 Kg7 24.Bc1 f6 25.f4 h6 26.Re1 g5 27.e5 fe5 28.fg5 hg5 29.Bg5 e4 (29...Rf8!?=) 30.Be4+= Re8 31.Qf2 Re4 32.Qf6 Kg8 33.Rf1?? (33.Re4 Be4 34.Qe6 Qf7 A) 35.Qd6?! Qf3 (35...Qc4? 36.Qd8 Kg7 37.Qe7 Qf7 38.Qe4+–) 36.Qb8 Kg7 37.Qc7 Kg8 38.Qc8 Kf7 39.Qc7 Kg8 40.Qd8 Kh7 41.Qc7 Kg8=; B) 35.Qe4+/–) 33...Re2–+ 34.Rf5 Bc8 35.Qg6 Qg7 36.Rf6 Bc7 37.Qh5 Re1 38.Kf2?? (better is 38.Kg2 Bb7 39.Kf2+=) 38...Re6–+ 39.Re6 Be6 40.Qe8 (40.Bf4 Qf6 (40...Bc4?! 41.Qe8 Qf8 42.Qf8 Kf8 43.Bc7+=) 41.Kf3 Kf8–+ (41...Bc4?! 42.Qe8 Kg7 43.Qd7 Kg6 44.Qg4 Kh7 45.Qd7 Kh8 46.Qc7–/+)) 40...Qf8 41.Qf8 Kf8 42.h4 Bc4 43.h5 Bb5 44.Bd2 (44.g4 Kg7 45.Bc1 c4–+) 44...c4 45.g4 (45.Bb4 Kg7 46.g4–+) 45...c3 46.Bh6 (46.Be1 Bf4 47.Kf3–+) 46...Kg8 47.Ke1 d3 0–1. Kalanyos,Ferenc (2005) – Tesinszky,Gyorgy (2150), HUN–chT2 Asztalos, 2005.

7.Nf3 dc4 8.Bc4= Bd6 9.0–0 Nbd7 (9...0–0 10.h3+=) 10.d3 (10.Nc3 0–0+=) 10...Qc7 (10...0–0 11.Nbd2=) 11.h3 (11.Nbd2 0–0=) 11...0–0 12.Nbd2 Rad8 (12...h6 13.a4=) 13.Rc1 (13.Qe2 Ne5=) 13...Qb8 (13...Ne5 14.Qe2=) 14.Qb3 h6 15.e4 (15.Qc3 Qa8+=) 15...Rfe8 (15...Nh5 16.Rfe1=) 16.Rfe1 (16.Qc3 Be7=) 16...Bf4 (16...Ne5 17.Qc3 Nf3 18.Nf3=) 17.Qc3 (17.g3 Bc7=) 17...Re7 (17...Qa8 18.g3 Bc7 19.a4=) 18.Rcd1 (18.a4 Ree8+=) 18...Nf8 (18...Qc7 19.g3 Bd2 20.Rd2+=) 19.Bb3 (19.g3 Bc7=) 19...a6 (19...Ng6 20.Nc4=) 20.a4+= ab5 (20...Ng6 21.Nc4 Qc7 22.Qc2=) 21.ab5 Bc8 (21...Ng6 22.Nc4 Qc7 23.Ra1+=) 22.Nc4+/– Bd7 23.Ba4 Bc7 (23...Be8 24.Qb3 Ra7 25.Nce5+/–) 24.Nfe5 (24.d4 Qb7+/–) 24...Be8 (24...Ng6 25.Ng6 fg6 26.d4+/–) 25.Re3 (25.Qb3!?+–) 25...Rd4 26.f4 (26.Nf3 Rd8+/–) 26...Be5 (26...Ng6!? 27.Ng6 fg6+=) 27.fe5+/– N6d7 (27...Nh5 28.Qd2 Ng6+/–) 28.Qc2 (28.Qa3 Ng6 29.Qa1 Rc4 30.dc4 Nde5+/–) 28...Rc4? (better is 28...Ng6!?=) 29.dc4+– Ne5 30.Qc3 (30.Ra3 Nfg6+–) 30...f6+/– 31.Re2 (31.Bb3 Bh5 32.Rd2 Ra7+/–) 31...Bh5 32.g4 Bg6 33.Bc2 (33.Qg3 Nfd7 34.Bb3 Qb7+/–) 33...Nh7 (33...Ra7 34.Qg3 Nfd7 35.Qf4+/–) 34.Red2 (34.Qg3 Re8 35.Be5 fe5+/–) 34...Kf7 (34...Re8 35.h4+/–) 35.Qg3 Ng5 36.Rf2 Nd7 37.Qb8 Nb8 38.Rfd2 Nf3+= 39.Kf2 Nd2 40.Rd2 e5 41.Ke3 Ra7 42.Bb3 Ke7 43.Kf3 Nd7–/+ 44.Bd1 Nf8–+ 45.Be2 Ne6 46.Bf1? Ng5 47.Ke3 Ne4 48.Rg2 Nd6 49.Bd3 Bf7 0–1. Bommert,Christian – Lischer,Thorsten, Dortmund ABC Serie B–22, 2004.

7.Nf3 Bd6 8.Nc3 +=.

7.Nf3 Bd6 8.d4 0–0 9.Bd3 Nbd7 10.0–0 Re8 (10...dc4 11.Bc4 Bf3 12.Qf3 cd4 13.Bd4 Bh2 14.Kh1–/+) 11.Qc2 (11.cd5 ed5 12.dc5 bc5=) 11...e5 (11...dc4 12.Bc4 Bf3 13.gf3+=) 12.de5= Ne5 13.Ne5 Be5 14.Nc3 (14.Be5 Re5 15.Nd2 d4 16.ed4 Qd4=) 14...h6 (14...d4 15.ed4 Qd4 16.Rfb1–/+) 15.cd5= Nd5 16.Nd5 (16.Rfd1 Bc3 17.Bc3 Qg5=) 16...Bb2+= (worse is 16...Bd5 17.Be5 Re5 18.e4+=) 17.Rad1 (17.Qb2?? Qd5 (17...Bd5?! 18.Qc2=) 18.f3 Qd3–+) 17...Ba3 18.Bc4 Bd5?? (better is 18...a6=) 19.Bd5+– (19.Rd5?! Qe7 20.Qd3 Qe4+=) 19...Qe7 20.Ba8 Ra8 21.Rd3 Bb4 22.Rfd1 g6 23.Rd7 Qe8 24.Qd3 (24.Qc4 Qe6 25.Qe6 fe6+–) 24...Kg7 (24...Qe6 25.Qe2+–) 25.Ra1 (better is 25.Qc4!? Kf8+–) 25...Ba5 26.Rd1 Bb4 27.Qd6 Ba5 (27...Bc3 28.Qc6+–) 28.Qc7 (better is 28.Re7 Qf8 29.Qe5 Kg8 30.Rdd7+–) 28...Qf8?? (28...Bc3 29.Rf7 Qf7 30.Rd7+–) 29.Re7 (better is 29.Rd8 Rd8 30.Rd8 Qd8 31.Qd8 h5+–) 29...Re8?? (29...Kg8 30.Rdd7 Qg7 31.h3+–) 30.Rdd7 (better is 30.Qe5! Kh7 31.Re8+–) 30...Re7 31.Re7 c4 32.Qe5 Kh7 33.Re8 (better is 33.Ra7!? c3 34.Qd5+–) 33...Qg7+/– 34.Qg7 Kg7 35.Rc8 c3 36.Kf1 Kf6 37.Ke2 Ke6 38.Kd3 Kd7 (better is 38...Kd6!?+–) 39.Ra8 (39.Rc3?! Bc3 40.Kc3 Kc7=) 39...Kd6 40.Ra7 Kc5? (40...Ke6+–) 41.Rf7 Kb5 42.Rc7 (42.Rf6!? g5+–) 42...Ka4 43.e4 b5 44.e5?? (better is 44.Ra7 Kb4 45.f4+–) 44...Bc7–+ 45.e6 Bd6 46.Kc3 b4 (46...Bh2?? 47.e7 Be5 48.Kd3+–) 47.Kc2 (47.Kb2 Kb5–+ (47...Bh2?? 48.e7 Be5 49.Kb1+–)) 47...Kb5 48.f4 (48.h4 Kc6–+) 48...Kc6 (48...Bf4?? 49.e7 Kc5 50.e8Q Bh2 51.Qe3 Kc6 52.g3+–) 49.g4 (49.g3 Kd5 50.e7 Be7–+) 49...Bf4 50.Kb3 Bd2 0–1. Kelbas,Anastasiya – Degtyaryova,Sofia, Ukraine Chess Championship– U12, 2016.

7.Nf3 Bd6 8.d4 Nbd7 9.Nbd2 (9.cd5 ed5 10.dc5 bc5=) 9...0–0+= 10.Be2 a6 11.a4 (11.cd5 ed5 12.dc5 bc5+=) 11...ab5 12.ab5 Qc7 (12...Ra1 13.Ba1 cd4 14.Bd4+=) 13.0–0 (13.dc5 Bc5 14.0–0 Ra1 15.Ba1 dc4 16.Nc4 Ng4+=) 13...Ra1 (13...cd4 14.Bd4 e5 15.Bc3–/+) 14.Ba1 Ra8 (14...cd4 15.Bd4 e5 16.Bc3–/+) 15.Qb3 (15.dc5!? bc5 16.cd5 ed5 17.Qc2=) 15...cd4–/+ 16.ed4 dc4 17.Bc4 (17.Nc4 Bd5 18.Bb2 Rc8–/+) 17...Ra3 18.Qc2 Ng4 19.h3 (19.Bb2 Bh2 20.Kh1 Ra7–+) 19...Bh2–+ 20.Kh1 Nf2! 21.Rf2 Ra1 22.Nf1 (better is 22.Rf1 Rf1 23.Nf1–+) 22...Bg3 23.Re2?? (23.Rd2 Be4! 24.Qb3–+) 23…Rf1 (23...Rf1 24.Ng1 Bh2–+) 0–1. Loulou – Bauarbeiter, playchess.de, 2003.

7.Nf3 Bd6 8.cd5 ed5 9.Nc3 +=.

7.Nf3 Bd6 8.cd5 ed5 9.Be2 =+.

7.Nf3 Nbd7

8.Qc2 Bd6 9.Be2 Qc7 10.Nc3 dc4 11.Bc4 Ne5 12.Be2 Nf3 13.gf3 Bh2 14.0–0–0 Be5 15.Rh3 0–0–0 16.f4 Bc3 17.Bc3 Qe7 18.a4 h6 19.a5 Rhg8 20.Kb2 Ne4 21.Rh2 f6 22.Ra1 Nc3 23.Qc3 e5 24.Bg4 Kb8 25.ab6 ab6 26.Ra4? (26.fe5 Rd2! 27.Kc1–+) 26...ef4–+ 27.Rf4 Qd6 28.Rh5 Qd2 29.Qd2 Rd2 30.Kc3 Rgd8 31.Bf5 Rd1 32.Bc2 R1d5 33.Rh3 Rg5 34.Rh2 Kc7 35.f3 Rg3 36.e4 Rd6 37.Rf2 Bc8 38.Rh4 Bd7 39.Bd3 Rd4 40.Rh1 Ra4 41.Rb1 Ra3 42.Kd2 h5 43.Rb2 h4 44.Ke2 h3 45.Bc4 Ra4 (better is 45...Rgf3! 46.Rf3 Bg4 47.Kf2 Bf3 48.Kg1–+) 46.Bd5 Ra5 47.Bc4 Kd6 48.Rd2 Ke7 49.Rb2 (49.Rh2–+) 49...Ra3 50.Bd5 Kd6 51.Bc4 Raf3! 52.Rd2 Ke5 53.Rd7 Re3 54.Kd2 Re4?? 55.Rd5= Ke6 56.Rg5 Rc4 57.Rg3 h2 58.Rh3 Rb4= 59.Kc3 Rb5 60.Rfh2 Ra5 61.Rh7 Ra3 62.Kc4 Ra4 63.Kb3 Rb4 64.Kc3 g5 65.Rh8 g4 66.Rf8 g3 67.Rg2 Rg4 68.Rb8 f5 69.Rb6 Kd5 70.Rb1 f4 71.Rf1 Ke4 72.Re2 Kf5 73.Rg2 Rg8 74.Kc4 Kg4 75.Rd2 Rf8 Black intends f3 76.Kc5 f3 77.Kd4? g2–+ 78.Rg2 fg2 79.Rf8 Kg3 80.Rg8= Kf2 ˝–˝. combijack (1760) – abacadabra (1780), gameknot.com, 2010.

8.d3 Qc7 9.Qc2 (9.cd5 ed5 10.Be2 Bd6=) 9...Be7 (9...Bd6 10.cd5 ed5 11.Be2+=) 10.Nbd2 (10.cd5 ed5 11.Be2 a6=) 10...a6 (10...dc4 11.dc4 a6 12.Bd3=) 11.Be2 (11.ba6 Ra6 12.d4 cd4 13.Nd4 Ra8=) 11...0–0 (11...ab5 12.cb5 0–0 13.0–0+=) 12.h3 (12.cd5 Nd5 13.ba6 Ra6+=) 12...ab5+= 13.cb5 Rfc8 14.Ng5 (14.0–0 Qd6+=) 14...h6 (14...d4 15.e4–/+) 15.Ngf3+= Ra5 16.0–0 (16.a4 e5+=) 16...Rca8 (16...Rb5!? 17.Rfb1 Ra5–/+) 17.a4 (17.Qb3 e5+=) 17...Bd6 18.Rfc1 Rc8 (18...R5a7 19.d4+=) 19.Nf1 (19.Bc3 Ra7=) 19...Raa8 (19...Ra7 20.N1d2+=) 20.N3d2 e5 21.Ng3 g6 22.Qd1 (22.Bf3 Re8=) 22...Qd8 (22...e4 23.Ndf1+=) 23.e4 (23.Qc2 Qe7=) 23...Qe7 24.Bf3 d4 (24...Qe6 25.ed5 Bd5 26.Nde4=) 25.Qf1 (25.Nc4 Qe6=) 25...Nh7 (25...Ra7 26.Nc4=) 26.Bd1 (26.Nc4 Bc7=) 26...Rf8 (26...Ra7 27.Nc4=) 27.Bb3 (27.Nc4 Bc7=) 27...Kh8 (27...Ra7 28.Nc4=) 28.Nc4 (28.Qe1 f5=) 28...Bc7 29.Rc2 (29.Qe1 Qd8=) 29...f5 30.ef5 gf5 31.Re1 (31.Bc1 Qh4=) 31...Qh4 (better is 31...e4+=) 32.Rce2? (32.Nd2 Ng5=) 32...Rae8 (32...f4!? 33.Nh1 Bg2 34.Qg2–+) 33.Nd2 (33.a5!? ba5 34.b6 Nb6 35.Ne5 Be5 36.Re5 Re5 37.Re5=) 33...Ng5–/+ 34.Bc4 f4 35.Nge4 f3 36.g3?? fe2 37.Re2 Qh3 38.Qh3 Nh3 39.Kh2 Ng5 40.Ng5 hg5 41.Ne4 Kg7 42.a5 Rh8 43.Kg2 g4 44.a6 Ba8 45.Bc1 Rh5 46.Rc2 Nf6 47.f3 gf3 48.Kf3 Rf5 49.Kg2 Ne4 (49...Ne4 50.de4 Be4 51.Kg1 Bc2–+) 0–1. Eckhoff,Karlheinz – Putz,Georg, Finkenstein op, 1998.

8.d3 Bd6 9.Nbd2 Qe7 10.Be2 e5 (10...a6 11.Qc2=) 11.cd5 Nd5 12.Nc4 Bc7 (12...a6 13.a4=) 13.Qc2 (13.e4 Nf4 14.g3 Ng6=) 13...0–0 14.e4 White threatens to win material: e4xd5 14...Nf4 Black threatens to win material: Nf4xg2 15.Ne3 (15.0–0 h6=) 15...g6 Covers f5 (15...a6 16.Nf5 Qe6 17.ba6 Ba6 18.Bf1–/+) 16.0–0 (16.Bf1 a6 17.g3 Ne6 (17...ab5? is no good 18.gf4 Ra4 19.Ng4+–) 18.ba6 Ba6=) 16...Rad8 (16...Bc8 17.Rab1=) 17.Rad1 (17.a4 f5=) 17...Rfe8 (17...Bc8 18.a4=) 18.Rfe1 (18.g3 Nh3 19.Kg2 Ng5 20.Ng5 Qg5+=) 18...Ne2 (18...Bc8 19.Rd2=) 19.Re2 Black has the pair of bishops 19...Nf8 20.Nc4 The knight likes it on c4 20...f6 Consolidates g5 21.Bc1 (21.Ne3 Rd6=) 21...Ne6 (better is 21...a6 22.Qb3 Kg7=) 22.Be3 (better is 22.Qb3!?= is a viable option) 22...Qd7–/+ 23.a4 (23.Bh6 Qb5 24.Rb1–+) 23...Be4!–+ Deflection: d3 24.Ne1 (24.de4 Qd1 Deflection Pinning) 24...Bb7 (24...Ba8 25.Qb3–+) 25.Qb3 (25.Qa2 Re7–/+) 25...Kg7 26.Qc3 (better is 26.Red2–/+) 26...Nd4–+ 27.Bd4 ed4 (27...cd4?! 28.Qb2–/+; 27...Qd4?! 28.Qd4 Rd4 29.Nc2–/+) 28.Qd2 (28.Qb2 Qg4 29.Rdd2 Bd5–+) 28...Re2 (better is 28...Bf4! makes it even easier for Black 29.Re8 Bd2 30.Rd8 Qd8 31.Rd2–+) 29.Qe2 Re8 30.Qc2?? terrible, but the game is lost in any case (30.Qf1–+) 30...Qg4 31.f3 Qh5 (better is 31...Qh4 and Black has triumphed 32.g3 Bg3 33.hg3 Qg3 34.Qg2 Re1 35.Re1 Qe1 36.Qf1 Qg3 37.Qg2 Qf3 38.Qf3 Bf3–+) 32.h3 Qh4 33.Qd2 (33.Kf1–+) 33...Bf4 34.Qf2 Bg3 35.Qf1 Re1 36.Re1 Be1 37.Nd6 (37.Qe2 doesn't get the bull off the ice 37...Bd5 38.Nb2 Bf7–+) 37...Bd5 38.Qe2 (38.Ne8 is not the saving move 38...Kf7 39.Nd6 Ke6–+) 38...Kh6 (better is 38...Bg3 makes it even easier for Black 39.Ne4 Be4 40.Qe4 Qg5–+) 39.Qe7 (39.Nc8–+ is one last hope) 39...Qf2 40.Kh1 Bf3! Deflection: g2 41.Nf5 (41.gf3 Qf3 Mate attack Deflection) 41...Kg5 42.h4 Kf5 43.Qd7 Kf4 44.Qd6 Ke3 45.Qe6 Kd3 46.Qb3 Ke2 0–1. Kalanyos,Ferenc – Taskovits,Istvan (2305), HUN–chT2 Asztalos, 2003.

8.d3 Bd6 9.cd5 ed5 10.Be2 +=.

8.d4 Rc8 9.Nbd2 Be7 10.Bd3 0–0 11.0–0 cd4 12.Bd4 Nc5 13.Bb2?? (13.Bc2 a6=) 13...dc4 (13...Nd3 14.Bd4–+) 14.Nc4?? (better is 14.Bc4 Bd6 15.Qe2=) 14...Bf3 (14...Nd3 15.Bd4 Bf3 16.gf3–+) 15.Qf3 (15.Bh7 Nh7 16.Qf3–+) 15...Nb3 (better is 15...Nd3 16.Rfd1 Rc4–+) 16.Bf6 (16.Rad1!? Qc7 17.Be5+/–) 16...Bf6+= 17.Qe4?? (better is 17.Rad1 Qe7 18.Qe4+=) 17...g6–+ 18.Ra2 (18.Rad1 Nc5 19.Qf3 Nd3 20.e4 Rc4 21.Rd3–+) 18...Qc7 (better is 18...Nc5 19.Qf3 Nd3–+) 19.Rc2 Nc5 20.Qf3 Bg7 21.Rfc1 0–1. Renkowski,Piotr – Eggink,Mateusz (1730), Poland–sf u11 boys, 2007.

8.d4 Be7 9.Nbd2 (9.cd5 ed5 10.dc5 bc5=) 9...0–0+= 10.Bd3 (10.Be2 a6=) 10...Ne4 (10...dc4 11.Bc4 cd4 12.Bd4=) 11.h4 (11.cd5 ed5 12.dc5 bc5=) 11...Ndf6 (11...cd4 12.Bd4 Ndc5 13.Bc2+=) 12.cd5 (12.0–0 cd4 13.Bd4 Nc5+=) 12...ed5 13.Ne5 (13.dc5 bc5 14.Qc2 Rc8+=) 13...cd4 (13...Nd2!? 14.Qd2 c4+=) 14.Bd4= Bd6 (14...Bc5 15.h5=) 15.Ndf3 (15.Ng4 Be7=) 15...Re8 (15...Qe7 16.h5=) 16.g4 (16.0–0 Qc7 17.Rc1 Nc5=) 16...Bc5 17.Bb2 (17.Qa4 Qc8=) 17...d4+= 18.g5 (18.ed4 Ng4 19.dc5 Nc5 20.Bh7 Kh7 21.Qd8 Rad8–/+) 18...de3 19.fe3 Nd7 20.Rf1 Qc7 (20...Nd6 21.e4 Ne5 22.Ne5 Be4 23.Be4 Ne4–+) 21.Be4+= Ne5 22.Bh7 Kf8 (22...Kh7 23.Ne5 Re5 24.Qh5 Kg8 25.Be5 Qe5 26.Qf7 Kh7 27.Qh5 Kg8 28.Qf7 Kh7 29.Qh5 Kg8 30.Qf7=) 23.Ne5+= Re5 24.Qc2 (24.Be5 Qe5 25.Bd3–+) 24...Re3–/+ 25.Kd1 Rd8 (25...Bf3 26.Kc1 g6 27.Bg6–+) 26.Kc1 Qe7 Threatening mate: Re1 27.Qc4 Re1 (better is 27...Bd5!? 28.Qf4 Ba3 29.Ra3 Ra3–+) 28.Kc2 Re2 29.Kb1 Bd5 30.Qf4? (30.Qd3 Re1 31.Re1 Qe1 32.Kc2 Qf2 33.Kb1 g6 34.Bg6 fg6–+) 30...Be3 (30...Rb2 31.Kb2 Qe2 32.Bc2–+) 31.Qg4 (31.Qb4 Qb4 32.ab4–+) 31...Rg2 (better is 31...Rb2!? 32.Kb2 Qe5 33.Kb1–+) 32.Qb4 Bc5 33.Qc3? (33.Qe1 Re2 34.Qc3 Be4 35.Be4 Qe4 36.Ka2 Rb2 37.Kb2–+) 33...Bd4! 34.Qd4 Decoy theme: d4 34...Ba2! Discovered attack 35.Ka2?? (35.Ra2 Rd4) 35...Rd4 Annihilates a defender: d4 (35...Qe6 36.Kb1 Rd4 37.Ra2–+ (37.Bd4?? Qb3 38.Kc1 Qc4 39.Bc3 Qf1 40.Be1 Qe1)) 36.Rac1 (36.Rab1 Rdd2 (worse is 36...Rh4 37.g6 f6 38.Rg1–+) 37.Rfd1 Rd1 38.Rd1 Qe2–+) 36...Qe6 (better is 36...Qe2 37.Rc8 Ke7 38.Rc7 Kd8 39.Rc2 Qf1 40.Bd4 Rc2 41.Bc2 Qc4 42.Kb1 Qd4 43.g6–+) 37.Ka1 Rdd2 (37...Rh4 38.Bf5 Qe8 39.Rc8 Qc8 40.Bc8 Rg5 41.Bf5+=) 38.Rb1 Rb2! (38...Rb2 39.Rb2 Rb2 40.Kb2 Qe2 41.Kc3 Qf1–+) 0–1. Gaslevich,LW – Lovejoy,David W, Queensland–ch, 1982.

8.cd5 ed5 9.Be2 Bd6 =.

8.Be2 dc4 9.Bc4 Bd6 10.0–0 =+.

8.Be2 Qc7 9.Qc2 Bd6 10.Nc3 dc4 11.Bc4 Ne5 12.Be2 0–0 13.h3 a6 14.0–0–0? (better is 14.ba6 Bf3 15.gf3+=) 14...c4–+ 15.Ne5 Be5 16.d4 cd3 17.Bd3 Rfc8 18.Kd2 Bg2 19.Rhg1 Bh3 20.ba6 Bf5! 21.Ne4?? (21.Bf5 Bc3 Double attack (21...Ra6 Deflection; 21...Bc3 Decoy)) 21...Ne4 22.Be4 Qc2 23.Bc2 Rc2 (23...Rc2 24.Ke1 Bb2–+; 23...Bc2?! 24.Be5 Bd1 25.Rg7 Kf8 26.Kd1–+) 0–1. combijack (1830) – zilak (1840), gameknot.com, 2011.

8.Be2 Qc7 9.Qc2 g6 10.d3 Bg7 11.Ng5 (11.cd5 ed5 12.0–0 0–0=) 11...0–0 12.cd5 ed5 13.Nd2 h6 14.Ngf3 Rfe8 15.Nh4 Ne5 16.h3 Rac8 17.f4?? (better is 17.0–0=) 17...Ned7–+ 18.f5?? (better is 18.Nf1 d4! 19.e4–+) 18...Qg3 19.Kd1 Qh4 20.fg6 fg6 21.Nf1 Qf2 22.e4 (22.Bf3 Qc2 23.Kc2 Ne5–+) 22...de4 23.de4 Ne4 24.Bg7 (24.Bc4 Kh7 25.Bg7 Kg7 26.Ra2 Qd4 27.Kc1–+) 24...Kg7 25.Ra2 (25.Kc1 Qd4 26.Ra2 Nc3–+) 25...Ne5 (25...Qd4 26.Kc1 Nc3 27.Ng3 Na2 28.Qa2 Qc3 29.Kb1 Qg3 30.Rd1–+) 26.Qb3 (26.Kc1 c4 27.Nh2 Nd3 28.Kb1 Qe2 29.Nf3–+ (29.Qe2?? Nc3 30.Ka1 Re2 31.Re2 Ne2–+)) 26...Rcd8 27.Nd2 Rd2 (27...Qg2 28.Re1 Bd5 29.Qe3 Ba2 30.Kc2 Rd2 31.Qd2 Nd2 32.Kb2 Nd3 33.Kc2 Ne1 34.Kb2 Nc4 35.Ka1 Qe2 36.h4 Qb2) 28.Rd2 Nd2 29.Qc3 (29.Kd2 Rd8 30.Kc1 Qe2 31.Qc3–+) 29...Ne4 30.Qb2 Rd8 31.Kc1 Qe3 32.Kb1 Nc3 33.Ka1 Rd2 0–1. Harmsen,Klaas Jaap – Colsen,M, PKS op–B Netherlands, 2003.

8.Be2 Be7 9.0–0 0–0 10.Qc2 Ne8 (10...dc4!? 11.Bc4 Bd6+=) 11.cd5= Bd5 (11...ed5 12.Nc3=) 12.Nc3+= Bb7 13.Bd3 (13.Rfd1 Nd6+=) 13...g6 (13...Bf3 14.gf3 Nef6 15.f4=) 14.Ne4 (14.Be2 a6+=) 14...Nef6 (14...f5 15.Nc3=) 15.h3 (15.Rfb1 Re8=) 15...Ne4 (15...Rc8 16.Rac1=) 16.Be4 Be4 17.Qe4 Bf6 (17...a6 18.a4=) 18.Rab1 (18.Bf6 Nf6 19.Qe5 a6=) 18...Bb2 19.Rb2 Nf6 (19...a6 20.Ra1=) 20.Qe5 (20.Qc4 Qd5 21.Rc1 a6=) 20...Nd7 21.Qc3 Qf6 22.d4 Rac8 (22...Rfd8 23.Rc2=) 23.Rd2+= cd4 (23...Rfd8 24.Rfd1+=) 24.Qd4 Qd4 25.Rd4 (worse is 25.ed4 Nf6=) 25...Nf6 26.Ra4 Rc7 27.e4 Rfc8 28.Rd1 Nd7 (28...Kg7 29.Kf1+=) 29.e5 Kg7 30.Kh2 (30.Rad4!? Nc5 31.Rd8=) 30...Nc5= 31.Rb4 Nd7 (31...h6 32.Rbd4=) 32.Rbd4 (32.Kg3 Nc5+=) 32...Nc5 33.Kg3 (33.h4 a6+=) 33...Nb7 (33...a6 34.ba6 Ra7 35.Rb4 Ra6 36.Rd6=) 34.Rd7 Na5? (better is 34...Nc5 35.Rc7 Rc7+=) 35.Ng5+– Rd7 (35...Kg8 36.Nf7 Nc4 37.a4+–) 36.Rd7 Rf8?? (36...Kg8 37.Nf7 Rc3 38.Kh4 Ra3+–) 37.Ne6 Kg8 38.Nf8 Kf8 39.Ra7 Nc4 40.Kf4 h6 41.Ke4 Ke8 (41...f6 42.Kd5 Ne5 43.Ke6+–) 42.Kd4 Nd2 (42...Nb2 43.Ra6 Nd1 44.Rb6+–) 43.Rb7 Nb1 (43...Nb3 44.Kd5 Na5 45.Rb6+–) 44.a4 Na3 (44...h5 45.Rb6 Nd2 46.a5 Nb3 47.Kc4 Na5 48.Kb4+–) 45.Rb6 Nc2 46.Kd5 Nb4 (46...g5+–) 47.Kd6 Kf8 48.Rb8 (better is 48.a5 Nd3+–) 48...Kg7 49.b6 1–0. marr – gast, internet, 2010.

8.Be2 Be7 9.0–0 0–0 10.d3 a6 =.

8.Be2 Be7 9.0–0 0–0 10.d4 cd4 11.Nd4 Nc5 12.Nd2 Rc8 13.f3 Bd6 14.g4 dc4 15.Nc4=+ Bb8 16.Qe1 Na4 17.Qf2 Nb2 18.Nb2 Qd5 19.h3 Rfd8 20.Nd3 Rc3 21.Nb4=+ Qd6 22.Ndc6 Bc6 23.Nc6= Rc8 24.Rfd1 Qc5 25.f4?? Kf8?? 26.Rd4 Ra3 27.Rad1 Bc7=+ 28.Rc4 Qe3 29.Qe3 Re3 30.Na7 Ra8 31.Rc7 Re2 32.Rc8 Rc8 33.Nc8 Nd5 34.f5 Rb2 35.fe6–/+ fe6 36.Re1 Kf7 37.Nd6–/+ Ke7 38.Nf5 Kf6 39.Nd4 Nf4–+ 40.Re3 Rb4 41.g5 Kg5 42.Ne6 Ne6 43.Re6 Rb5 44.Re7 Kf6 45.Rb7 Rb2 (46.Rb8 h6–+) 0–1. Demoulin,Joachim – Wagener,Claude, Wch U18 Szeged, 1994.

8.Be2 g6 9.d3 Bg7 10.0–0 0–0 11.Nbd2 Qc7 12.a4 Rfd8 13.h3 dc4 14.dc4 Ne4 15.Bg7 Kg7 16.Ne4 Be4 17.Nd2 Bb7 18.Bf3 Bf3 19.Qf3 Ne5 20.Qe2 Rd7 21.Nf3 Nf3 22.Qf3 Rad8 23.Rfd1 Rd2 24.Rd2 Rd2 25.Kf1 (25.a5 ba5 26.Ra4 h6=) 25...Qd7 26.Ke1 (26.Qe4 Qd6 27.Kg1 h6+=) 26...Rc2 (26...Qd3!? 27.Rc1 e5–/+) 27.Rd1+= Qc7 28.Qe4 Ra2 29.g3 Ra4 30.Qc2 Rb4 31.Ke2 Qe5 32.Rb1 Rb1 33.Qb1 Qc3 34.Qa2 h5 35.Kf3 Qd3 (35...Qa5 36.Qb2 f6 37.Qb1+=) 36.Qe2 (better is 36.Qa7!? g5 37.Qb6 g4 38.hg4 hg4 39.Kg2 Qe4 40.Kf1 Qc4 41.Ke1 Qc3 42.Ke2 Qc2 43.Ke1=) 36...Qe2–/+ 37.Ke2 Kf6 38.f4 e5 39.Kf3 Ke6 40.g4 hg4 41.hg4 f5 42.g5 Kd6?? (42...e4 43.Ke2–+) 43.Ke2? (better is 43.e4+=) 43...ef4 44.ef4 Kc7 45.Kd3 Kb7 46.Kc3 a6 47.Kb3 ab5 48.cb5 Kc7 49.Kc3 Kd6 50.Kc4 Ke6 (50...Ke6 51.Kc3 Kd5–+) 0–1. Hal1958 – Matu, playchess.de, 2006.

8.Be2 Bd6

9.0–0 0–0 10.d4 a6 11.ba6 Ba6 12.Nbd2 +=.

9.0–0 0–0 10.d4 dc4 11.Nbd2 (11.dc5 Nc5 12.Nbd2 Qc7=) 11...c3 (11...cd4 12.Nc4 Bf3 13.Bf3 (worse is 13.Nd6 Be2 14.Qe2 Nc5–/+) 13...Bh2 14.Kh1+=) 12.Bc3 Ne4 (12...Nd5 13.Bb2=) 13.Ne4+= Be4 14.Nd2 (14.dc5 Nc5 15.Qd4 f6+=) 14...Bg6 (14...Bd5 15.e4 cd4 16.Bd4=) 15.Nc4+= Be7 (15...Bc7 16.d5 ed5 17.Qd5+=) 16.Bf3 White prepares d5 16...Rc8 17.d5 (17.Rc1 cd4 18.Bd4 Rc7+=) 17...ed5 (17...Bf6 18.Rc1+=) 18.Qd5 Nf6 (18...Bf6 19.Rad1 Bc3 20.Qd7=) 19.Qb7 (19.Qe5 Qd7+=) 19...Rc7 20.Rfd1 (better is 20.Qa6+=) 20...Rb7–/+ 21.Rd8 Rd8 22.Bb7 Bd3 23.Ne5 Bb5 24.a4 (24.e4 Bd3 25.Nc6 Rd7–/+) 24...Be8 (24...Ba4 25.Bf3 b5 26.Nc6–+) 25.a5 (25.Nc6 Bc6 26.Bc6 Nd5–/+) 25...b5–+ 26.a6 (26.Bb2 b4–+) 26...Nd5 (26...b4!? 27.Bb2–+) 27.Ba5 Rd6 28.e4 Nb6 29.Nc6? (better is 29.f4–/+) 29...Nc8?? (better is 29...Bc6 30.e5 Rg6 31.Bb6 Bg2 (31...ab6?! 32.Bc6 Rc6 33.a7=) 32.Bg2 Rb6–+ (worse is 32...ab6 33.a7 Bf8 34.a8Q+–)) 30.Ne7= Ne7 31.Bc7 Re6 (31...Rd3 32.Bb8 Nc6 33.Bc6 Bc6 34.Ba7=) 32.Bb8+= Nc6 33.Bc6 Bc6 34.Ba7 The passed pawn on a6 will quickly become a dangerous weapon 34...c4 35.f3 b4 36.Bc5 b3 37.a7 Re8 38.Bd4 Ba8 (38...Ra8!?+=) 39.Ra4+/– Rc8 40.Rb4 f6?? (better is 40...Kh8+–) 41.Rb8 Rf8 42.Bc5 Kf7 43.Rf8 Kg6 44.Bd4 (44.Bd4 Bb7 45.Rb8+–; better is 44.Ra8 Kh6 45.Rb8+–) 1–0. Stefanova,Milena (2020) – Draganova,Petranka (2080), V. Tarnovo BUL Women Ch, 2005.

9.0–0 0–0 10.d4 Qc7 11.h3 (11.cd5 Bd5 12.Nc3 Bb7=) 11...dc4+= 12.Nbd2 cd4 13.Bd4 (13.Nd4 Ne5 14.Qc2 Rac8+=) 13...Bd5+= 14.Qa4 Can c4 get defended? (14.Bc4 Bc4 15.Rc1 Bf1 16.Rc7 Bb5 17.Rc1 Ba3 18.Rb1–/+) 14...Nc5 (better is 14...c3!? 15.e4 Bb7–+) 15.Bc5= Bc5 16.Bc4 Bc4 (16...Bb7 17.Rfd1=) 17.Qc4 (17.Nc4 a6=) 17...Rac8 (17...Rfc8 18.Rfd1=) 18.Rfc1 (18.Rac1 Rfd8=) 18...Qd7 (18...Rfd8 19.Rc2=) 19.Qb3 Rfd8 20.Rd1 (20.Nc4 Qb7=) 20...Qc7 (20...Qb7 21.Qa4=) 21.Rac1 Qe7 (21...Ra8 22.Qa4=) 22.a4 (22.Ne5 Rd5 (worse is 22...Ba3 23.Nc6 Rc6 24.Rc6+/–) 23.Nc6 Qf8=) 22...Nd7 (22...e5 23.Nc4 Rd1 24.Qd1=) 23.Nc4 (23.Ne4 Nf6 24.Rd8 Rd8 25.Nc5 bc5+=) 23...f6 (23...Qf6 24.Qb2+=) 24.Nd4 (24.Rd3 Kh8+=) 24...Bd4 25.Rd4 (25.ed4 Nf8+=) 25...Nc5= 26.Rd8 (26.Qc2 e5 27.Rd8 Qd8=) 26...Rd8 27.Qa2 White plans a5 (27.Qc2 Qd7=) 27...Kf7 (27...Rd5 28.a5 ba5 A) 29.Qa5?? Nb3 30.Qc3 Nc1 31.Qc1 Qc7–+ (31...Rb5?! 32.Nd2–+); B) 29.Na5=) 28.a5+= Qc7 (28...Nd3 29.Rd1+=) 29.ab6+/– ab6 30.Nd2 (30.Qc2!?+/–) 30...Qd7= 31.Nc4 Qb5 32.Qa7 Kg6 33.Nb6 Nd7?? (33...Ne4 34.Rc7 Rg8 35.Nc8=) 34.Nd7 (better is 34.Rd1 Qc5 35.Qb7+– (35.Rd7?! Rd7 36.Qd7 Qb6=)) 34...Rd7= 35.Qa2 ˝–˝. Schmidbauer,J – Ulmer,H, Landshut, 2000.

9.0–0 0–0 10.cd5 Nd5 11.Qa4 Nc7 =.

9.0–0 dc4 10.Bc4 Ng4 11.h3= (worse is 11.Bg7 Nh2 12.Nh2 Bh2 13.Kh2 Qh4 14.Kg1 Rg8–/+).

9.0–0 Qc7 10.d3 0–0 11.Nbd2 Ne5 12.Ne5 Be5 13.Be5 Qe5 14.Bf3 a6 15.a4 ab5 16.ab5 Qc3 17.Ra8 Ra8 18.cd5 (18.Nb1 Qb4+=) 18...Bd5 (18...ed5 19.d4+=) 19.Bd5 (19.Nc4 Nd7+=) 19...Nd5 (19...ed5!? 20.Nf3 Ra5–/+) 20.Ne4 Qb2 21.Qb1 (21.Nd6 Qf6+=) 21…Qb1–/+ ˝–˝. Hal1958 – Carrillero, playchess.de, 2005.

9.0–0 Qc7 10.h3 0–0 11.d4 dc4 12.Nbd2 cd4 13.Nd4 Ne5 (13...Bh2!? 14.Kh1 Nc5+=) 14.Rc1= c4 seems the pivot of the position 14...Bd5 (14...Rac8 15.Nc4 Nc4 16.Bc4=) 15.f4+= Ned7 (15...Ng6 16.Bc4 Qd7 17.Qe2+=) 16.Bc4 Qb7 (16...Nc5 17.Bd5 Nd5 18.Nc4+=) 17.Bd5 Qd5 18.Qf3 (better is 18.Nc4+=) 18...Qa2? (better is 18...e5 19.Qd5 Nd5+=) 19.Nc4+– Bc5 20.Rc3 (20.Rc2!? Bd4 21.ed4 Rac8+–) 20...Nd5+/– 21.Ra1 (better is 21.Rb3 Bd4 22.ed4+/–) 21...Nc3? (better is 21...Qb2 22.Nb2 Nc3+/–) 22.Ra2+– Na2 23.Qd1 Nf6 (23...Bd4 24.Qd4 Nf6 25.Qd1+–) 24.Qb3 Rfd8 (24...Nd5 25.Qa2 Rfd8 26.Ne5+–) 25.Qa2 (25.Nc6 Rd7 26.Bf6 gf6 27.Qa2 a6+–) 25...Nd5 26.Nc6 (better is 26.Ne5!? Rd6+–) 26...Ne3 27.Nd8 Nc4 28.Kh2?? (28.Kh1 Nb2 29.Ne6 fe6 30.Qb2 Rd8+–) 28...Nb2?? (better is 28...Ne3=) 29.Ne6+– fe6 30.Qb2 Rf8 31.Qe5 Ba3 32.Qe6 Kh8 33.Qa2 Bd6 34.g3 Bb8 35.h4 h6 36.h5 Rf5 37.Qe2 Bd6 38.Qe8 Rf8 39.Qd7 Bc5 40.Qa7 Rf6 41.Qa8 Rf8 42.Qd5 Rf6 43.Kg2 Rd6 44.Qa8 Kh7 45.Qe4 Kg8 46.g4 Rd2 47.Kg3 Rd4 48.Qe6 Kf8 49.Kf3 Rd3 50.Ke2 Rd8 51.Qf5 White prepares the advance g5 51...Kg8 52.g5 hg5 53.fg5 Re8 54.Kd3 Re3 55.Kc4 Re7 56.Kd5 Re1 57.Kc6 Re3 58.Qd5 Kf8 59.Qf5 Ke7?? 60.h6 gh6 61.Qf6 Ke8 62.g6 Rg3 63.Qf7 1–0. Nikolic,Jovane (1695) – Casarin,Luis Marcio Pinhatt (1870), 1st IRT Jarbas Karman, 2013.

9.cd5 Nd5 10.0–0 0–0 =.

9.cd5 Nd5 10.Nc3 0–0 =.

7.Nf3 Be7

8.d4 a6 9.a4 dc4 10.Bc4 0–0 11.0–0 Nd5 12.Nc3 Bf6 13.Ne4 cd4 14.Nf6 Nf6 15.Nd4 Nbd7 16.Qe2 Nc5 17.Ba3 ab5 18.ab5 Qc7 19.Rfc1 Rfc8 20.Bb2 h6 21.Ra8 Ba8 22.Nb3 (22.f3 Bd5=) 22...Qb7 23.f3 Nb3 24.Bb3 Rc1 25.Bc1 Qc7 26.Bb2 Bd5 27.Bd5 Nd5 28.Qd3 Qc5 29.Bd4 Qc1 30.Kf2 Nb4 31.Qe2 Qc2 32.e4 (32.Bb6 Nd3 33.Kg1 Qe2 34.h3 Ne1 35.e4 Qg2) 32...Qb3 33.Qd2 Nd3 34.Ke2 Nc5 35.Bc5 (better is 35.Qb2!? Qc4 36.Ke3=) 35...Qb5–/+ 36.Qd3 Qc5 37.Qa6 (37.h3 b5–/+) 37...g5 (37...Qg1 38.Qc8 Kh7 39.g4 Qh2 40.Ke1–+) 38.h4 (38.h3 b5–/+) 38...b5 (38...Qg1!? 39.Qc8 Kh7 40.g4 gh4 41.Qc7–+) 39.hg5–/+ hg5 40.Qa8 Kg7 41.g3 (41.Qa5 Kg6–+) 41...b4 42.f4? (42.Qa2 Qb5 43.Ke3 b3 44.Qb2 Kg6–+) 42...g4 (42...Qc2 43.Ke3 Qc3 44.Ke2–+) 43.Qa2? (43.Qa1 f6 44.Qd1 Qc4 45.Ke3 Qc3 46.Qd3 Qe1 47.Kd4 Qa1 48.Ke3 Qa7 49.Ke2 e5 50.fe5 fe5–/+) 43...Kh7 44.Qb2 Qc4 45.Ke3 f5 46.ef5 ef5 47.Qf6 (47.Qf6 Qe4 48.Kd2 Qd5 49.Kc2–+) 1–0. Migot,Tanguy (2000) – Forlot,Francois (1910), Avoine op, 2007.

8.cd5 ed5 9.Nc3 0–0 =.

8.cd5 ed5 9.Be2 0–0 =.

8.Be2 0–0+= 9.0–0 dc4 (9...a6 10.cd5 Nd5 11.Nc3+=) 10.Bc4 (10.Ne5 a6 11.ba6 Ra6=) 10...Qc7 11.d3 (11.Be5 Bd6 12.Bf6 gf6+=) 11...Ng4 (11...Nbd7 12.Nbd2+=) 12.e4 (12.Nbd2 Nd7=) 12...Nd7+= 13.h3 Nge5 14.Nbd2 Rfd8 (14...a6 15.ba6 Ba6 16.Ba6 Ra6 17.Qb3=) 15.Qc2 Bf6 (15...Qd6 16.a4=) 16.Ne5 (16.a4 h6=) 16...Be5 (16...Ne5 17.Rad1+=) 17.Be5 (17.Nf3 Bb2 18.Qb2 a5=) 17...Qe5 (17...Ne5!? 18.a4 a6+=) 18.f4 Qd4 19.Kh2 Nf6 (19...a5 20.a4=) 20.Nf3 (20.e5 Ne8=) 20...Qd7 21.Qf2 (21.Qb2 Qc7 22.Qe5 Rd6=) 21...Qc7 22.Ne5 (22.Qe3 Ne8=) 22...Rd4 (22...Nd7 23.Nd7 Rd7 24.Qg3=) 23.g4 (23.Qg3 h6=) 23...Nd7 (23...h6 24.Qg3=) 24.Nd7 (24.Nf3 Rc4 (worse is 24...Qf4 25.Qg3 Qd6 26.Qd6 Rd6 27.e5=) 25.dc4 Qf4 26.Qg3 Qe4=) 24...Qd7+= 25.Rg1? (better is 25.Rfe1+=) 25...Be4!–+ 26.de4 Rc4 27.Rgd1 (27.Qe2 Qb5 28.Rac1 Rb4 29.Qb5 Rb5–+) 27...Qc7 (better is 27...Qb5!? 28.Re1–+) 28.e5 Rd8 (28...g5 29.Rd6 Rf4 30.Qe3–+) 29.Qf3 (29.Qg2 Rcd4 30.Rd4 Rd4–+) 29...Rcd4 (29...g5 30.Qc6 Qb8 31.Rd6–+) 30.Rd4 cd4 31.Qc6 Qe7 32.a4 (32.Qc2 h5! 33.gh5 Qh4–+) 32...h6 (32...d3 33.Qc3–+) 33.Rc1? (33.Rd1 d3 34.Qc3 Qc5–+) 33...Qb4 34.Qc7 Qd2 35.Kh1 Rd5 36.f5 Qe3 37.Kg2 Re5 38.fe6 Re6 39.Rf1 Qe4 40.Kg1 Re7 41.Qc8 Kh7 42.Qf5 Qf5 43.Rf5 Rd7 44.Kf2 d3 45.Ke1 f6 46.Rf4 d2 47.Kd1 Kg6 48.h4 Kf7 49.Re4 g6 50.Rf4 Ke6 51.Re4 Kd5 52.Rf4 Ke5 53.Rf3 Rd4 54.g5 hg5 55.hg5 fg5 56.Rf7 g4 57.Ra7 g3 58.Re7 Kf4 59.Rf7 Kg4 60.Rf1 g2 61.Rg1 Kf3 62.a5 ba5 63.b6 Kf2 64.b7 Rd8 0–1. Holz auf der Heide,Gerhard (1645) – Schuetzhold,Frank (2035), Leipzig VfB op, 2004.

8.Be2 0–0 9.0–0 Nbd7 10.d4 Rc8 11.Nbd2 dc4 12.Bc4 Nd5 13.e4 N5f6 14.e5 Nd5 15.Nb3 cd4 16.Qd4 Nc5 17.Rfd1 Nb3 18.Bb3 Bc5 19.Qd3 Qe7 20.Bc2 g6 21.Qb3 (21.Qd2 Nc7 22.Qe2 Bf3 23.Qf3 Nb5=) 21...Nf4+= 22.Kf1 (22.Rd2 Ng2 23.Rad1 Ne3–+) 22...Rfd8 (better is 22...Bd5!? 23.Rd5 Nd5–/+) 23.Rd8= Rd8 24.Bc1 Bd5 25.Qc3 Bf3 26.Qf3 (worse is 26.Bf4 Bd4 27.Qf3 Ba1–+) 26...Nd5 27.Bb2 Qg5 (better is 27...Nc7!? 28.Bd3 Qh4–/+) 28.Rd1+= Qe7 29.Bb3 Ba3? (better is 29...Nc7 30.Rd8 Qd8=) 30.Ba3+– (30.Bd5? Bb2 31.Qe2 Be5 (31...Rd5?! 32.Rd5 ed5 33.Qb2–/+; 31...ed5?! 32.Qb2 Qh4 33.Kg1–/+) 32.Qe5 Qc5–+) 30...Qa3 31.Bd5 ed5?? (better is 31...Qb2 32.Bc6 Rd1 33.Qd1 Qe5+–) 32.Qa3 1–0. Bonetti,Shane – hwRook (1645), ICC, 2002.

8.Be2 0–0 9.d4 =.

8.Be2 dc4 9.Bc4 0–0 10.0–0 a5 11.Nc3 Nbd7 12.Qe2 Qc7 13.Rac1 Ng4 14.e4 Nge5 15.Bb3 Nf3 16.Qf3 Ne5 17.Qg3 Bd6 18.f4 Ng6 19.e5 Be7 20.d3 Rfd8 (20...Nh4 21.Ne4 Nf5 22.Qh3+=) 21.Ne4 (21.f5!? Bh4 22.Qg4 ef5 23.Rf5+–) 21...a4 22.Bc4 Be4 23.de4 Bf8? (better is 23...Bh4!? 24.Qc3 Qd7+/–) 24.f5+– ef5 25.ef5 Nh8 26.Rcd1 Rd1 27.Rd1 Rd8 28.Rd5 (better is 28.Qg4!?+–) 28...Rd5+= 29.Bd5 c4 30.Bc6 Bc5 31.Kf1 Kf8 (better is 31...Qd8!? 32.Ke1 Bd4=) 32.Qh4+– h6 33.Qc4 f6?? (better is 33...Qd8 34.Bf3 Kg8+–) 34.Qe6 Nf7 (34...g5 35.Qe8 Kg7+–) 35.Qe8 1–0. Clark,Mark – Slavin,Pablo, RE–2008–0–00011, 2008.

8.Be2 dc4 9.Bc4 Nbd7 10.Nc3 0–0 11.Qe2 Qc7 12.0–0 Rac8 13.e4 Ng4 14.h3 Nge5 15.Ne5 Ne5 16.d3 Bf6 17.Nd1 Nd7 18.Bf6 Nf6 19.Ne3 Rfd8 20.Ng4 Qe7 21.Nf6 Qf6 22.a4 Qd4 23.Ra3 g6 (23...Rc7 24.a5=) 24.Rfa1 Kg7 25.Qe3 e5 26.Qd4 (26.a5 Rd7+=) 26...cd4 27.f3 Ra8 (27...Rd7 28.a5=) 28.a5+= Kf6 29.ab6 (29.g3 g5+=) 29...ab6= 30.Ra7 Rab8 (30...Ra7!? 31.Ra7 Rd7=) 31.Kf2 Rd7 32.h4 Ke7 33.g3 f6 34.g4 h6 35.Kg3 Kd6 36.f4 Rc7 37.f5 (37.fe5 Ke5 38.Bd5 f5+=) 37...g5 (37...gf5 38.gf5 Rc4 39.dc4 Be4 40.Rf7 Rg8 41.Kh2=) 38.hg5 hg5 39.Rh1 Be4 (39...Rc4 40.dc4 Be4 41.Rhh7=) 40.Rc7 Bh1 41.Rf7 Bd5 42.Bd5 (42.Rf6!? Kc5 43.Bd5 Kd5 44.Kf3+=) 42...Kd5= 43.Rf6 e4 (43...Ra8 44.Kf2=) 44.de4+= Ke4 45.Re6 Kd3 46.Kf3 Kc4 47.Ke2 Kb5 48.Kd3 Kc5 49.Re5 Kb4 (49...Kc6 50.Kd4 Ra8 51.Re6 Kd7 52.Rb6 Ra4 53.Ke5 Rg4 54.f6+–) 50.Rd5 b5 51.Kd4 Kb3? (better is 51...Ka4+=) 52.f6+– b4 53.Rg5 Rb6?? (53...Rf8 54.Rf5 Ka2 55.Ra5 Kb2+–) 54.Rf5 1–0. Olsen,Michael R. W (2020) – Kallenbach,U (1640), Copenhagen Chess Challenge, 2012.

8.Be2 Nbd7 9.0–0 0–0 10.d3 Ng4 (10...Bd6 11.cd5 Nd5 12.Nbd2=) 11.cd5 ed5 12.h3 (12.Qa4 Ngf6=) 12...Bf6 (12...Ngf6 13.Nc3=) 13.d4 Nh6 14.g4 (14.Nc3 Qe7=) 14...Kh8 (14...c4 15.Nc3+=) 15.Ne5 (15.Nc3 c4=) 15...Be7 (better is 15...Be5!? 16.de5 Qh4+=) 16.Nc6= Bc6 17.bc6 Nb8 18.dc5 bc5 (18...Nc6 19.Bb5 Rc8 20.cb6 ab6 21.Nc3=) 19.Nc3+= d4 20.ed4 Nc6 21.dc5 Bc5 22.Nb5 (22.Qd5 Qd5 23.Nd5 Rab8=) 22...Qb6 (22...Re8 23.Rc1 Qb6 24.Qd2=) 23.Qd2 (23.Rb1 Rad8 24.Qc2 f5=) 23...f6 24.a4 (24.Rac1 Rae8=) 24...Nf7 (24...Rad8 25.Qc2+=) 25.Rab1 (25.a5 Qb7+=) 25…a5 (25...a5 26.Bc3 Ng5=; 25...Rfe8 26.Bf3 Rad8 27.Qf4+=). Kallai,Gabor – Sleisz,T, Szivarvany rapid, 1994.

6.Nf3 Bb7

7.c4 dc4 8.Nc3 Be7 9.Ne5 0–0 10.f4 Qc7 11.Nf3 =.

7.c4 dc4 8.Bc4 Bd6 9.d3 Nbd7 10.Nbd2 Qb8 11.Qb3 0–0 12.Qc3 Kh8 13.h4 Rg8 14.h5 h6 15.Ke2 Nd5 16.Bd5 ed5 17.Kf1 Be7 18.Ne5 Ne5 19.Qe5 Bd6 20.Qf5 Qe8 21.Nf3 d4 (21...Qb5?? 22.Ng5 Qd3 23.Qd3 hg5 24.Qf5+–) 22.ed4 (22.a4!? a6 23.ed4 Bf3 24.Re1 Bg2 25.Kg2=) 22...Bf3–/+ 23.gf3 Qb5 24.Rb1 Qb3 25.Kg2 cd4 26.Rhe1 Qa4 27.Qd5 Bc5 (worse is 27...Ba3 28.Ra1 Qc2 29.Ba3 Qd3 30.Bd6+/–) 28.Rbc1 (28.Qf7!? Rgf8 29.Qe6–/+) 28...Rad8–+ (28...Ba3 29.Ra1 Rad8 30.Qf7+/–) 29.Qf7 Qb5 (29...Ba3 30.Ra1 Qc2 31.Ba3 (worse is 31.Ra3 Qb2 32.Ra7 Qd2–/+) 31...Qd3 32.Be7+– (worse is 32.Qa7 Ra8 33.Qe7 Ra5+/–)) 30.Ba1 (30.Re2 Qd3 31.Rce1 Rdf8–+ (31...Ba3 32.Re8 Rge8 33.Re8 Re8 34.Qe8 Kh7 35.Ba3 Qa3 36.Qe4 Kg8 37.Qd5 Kf8 38.Qf5 Ke8 39.Qc8 Ke7 40.Qb7 Kd8 41.Qb8 Kd7 42.Qb7 Kd6 43.Qg7–/+)) 30...Qd3 31.Rcd1 Qa3 32.Bd4 Bd4 (32...Rd4?! 33.Re8 Re8 34.Qe8 Kh7 35.Qg6 Kg8 36.Qe8 Kh7 37.Qg6 Kh8 38.Qe8 Kh7=) 33.Rd4 Rdf8 34.Qd5 Rf6 35.Re5 Qf8 36.Qe4 Qf7 37.Qg4 Rf8 38.Rd7–/+ Rf4 39.Qh3 Qf6 40.Re6 Qc3 41.Re3 Qa1 42.Ree7 R4f5 43.Re4 Qc3 44.f4 Qc6 45.Rde7 Rf4 46.f3 Re4 47.Re4 Qc2 48.Kg3 Qc7 49.Kg2 Qc3 50.Qe6 Qf3 0–1. Kovar,Vojtech – Decka,Eliska (2105), Klatovy op–A, 1999. (=1.Nf3 Nf6 2.b4 e6 3.a3 b6 4.Bb2 Bb7 5.e3 c5 6.b5 d5)

7.c4 dc4 8.Bc4 Bd6 9.h3 0–0 10.0–0 a5 11.Be2 =.

7.c4 dc4 8.h3 a6 9.Nc3 ab5 10.Nb5 Be7 11.Bc4 =.

7.d3 Bd6 8.Be5 a6 9.Nc3 0–0 10.ba6 Na6 –/+.

7.d3 Be7 8.Nbd2 0–0 9.Be2 Nbd7 10.0–0 Qc7 ˝–˝. Pecorelli Garcia,H (2450) – Zambrana,O (2385), Casa Argentina 3rd, 2002. (=1.Nf3 Nf6 2.b4 e6 3.a3 b6 4.Bb2 Bb7 5.e3 c5 6.b5 d5)

7.d3 Be7 8.Be2 0–0 9.0–0 Nbd7 10.h3 Nh5 =.

7.Bd3 A) 7...Bd6 8.0–0 (8.c4 0–0 9.h3 Nbd7 10.cd5 ed5 11.0–0+=; 8.Nc3 0–0 9.0–0 Nbd7 10.h3 h6 11.Re1+=) 8...0–0 9.c4 Nbd7 10.cd5 ed5 11.h3+=; B) 7...Nbd7 8.0–0 (8.c4 Bd6 9.0–0 Qc7 10.cd5 ed5 11.h3+=) 8...Qc7 9.Be2 Bd6 10.d3 0–0 11.g3+=.

7.d4 c4 8.Nbd2 Qc7 9.Bc3 Be7 10.h3 a5 11.a4 Bd6 12.Rb1 Qe7 13.Ba1 Nbd7 14.Ne5 Ne5?? (better is 14...Rc8+=) 15.de5+– Be5 (15...c3 16.Nf3 (16.ed6?! cd2 17.Qd2 Qd6=; 16.Bc3?! Qc7+–) 16...Bb4 17.ef6 Qf6 18.Qd4 Qd4 19.Nd4+–) 16.Be5 Rc8 17.c3 (17.Nf3 Qa3+–) 17...Nd7 18.Bg7 Rg8 19.Bh6 e5 20.h4 (better is 20.e4!? Rg6 21.Qh5+–) 20...Rg6 21.Bg5 f6 22.Be2 Rg8 (22...d4!? 23.Bh5 Bg2 24.Bg6 hg6+/–) 23.Bh5 Kd8 24.Bh6 Kc7 (24...Rg2 25.Bg4+–) 25.Rg1 Nc5 26.e4! Nd3 (26...Ne4 27.Ne4 Combination; 26...de4 27.Nc4 Deflection) 27.Kf1 Qc5? Black plans d4 (27...f5 28.ed5 Bd5+–) 28.Be3 d4 29.Bh6 Kb8 30.cd4 ed4 (30...Qd4 31.Be3 Qd7 32.Be2+– (32.Bb6?! c3 33.Qc2 Nb4=)) 31.Bf7 Rgd8 (31...c3 32.Nb3 (32.Bg8 c2 33.Qf3 c1Q 34.Rc1 Qc1 35.Ke2 Qg1 36.Qd3 Rg8 37.Qd4 Qg2+–) 32...c2 33.Nc5 cd1Q 34.Rd1 Nc5 35.Bg8 (35.Rd4?! Rgd8 36.Be3 Be4+=) 35...Rg8 36.f3+–) 32.Bc4 Be4 33.Be6 (33.Ne4?! Qc4 34.Nd2 Qe6+–) 33...Nf2 (33...Bd5 34.Bc8 Qc8 35.Qe2+–) 34.Ne4 (better is 34.Kf2 Bb1 35.Bf4 Ka7 36.Qb1 d3 37.Kg3 Rc7 38.Bc7 Qc7 39.Kh3 Qf4+–) 34...Ne4 35.Bc8 (35.Bf4 Ka8 36.Rc1 Nc3+–) 35...Rc8?? (better is 35...Qc4 36.Ke1 Qc3 37.Ke2 Ng3 38.Kf2 Ne4 39.Ke2 Ng3 40.Kf2 Ne4 41.Ke2=) 36.Bf4 Kb7 37.Rc1 Qf5 (37...Ng3 38.Ke1 Re8 39.Kf2 Ne4 40.Kf1+–) 38.Qf3 (38.Rc8 Kc8 39.Qc2 Kd7 40.Qc7 Ke8+–) 38...Re8 (38...Rc1 39.Bc1 Qd5 40.Ke1+–) 39.g4 (39.Rc4!? d3+–) 39...Qd5 40.Kg2 f5 (40...Ka8 41.Kh2+–) 41.Rc7 Ka8 42.g5 Qa2 43.Kh1 d3 (43...Qf2 44.Qf2 Nf2 45.Kg2+–) 44.Rd7 (44.Be3!? Qd5 45.Bb6 Nc3+–) 44...Qa4 45.Rc1 Qb5 (45...d2 46.Bd2 Qb5+–) 46.Rcc7 (46.Rd3? Qd3 47.Qg2 Qd4–+) 46...Qa6 (46...Qd7 47.Rd7 Rc8 48.Qe3+–) 47.Rh7 (47.Kh2 Kb8 48.Ra7 Re5 49.Be5 Kc8 50.Rac7 Kb8 51.Rd8 Qc8 52.Rdc8) 47...a4 (47...Rc8 48.Rce7 d2 49.Bd2 b5+–) 48.Kg2 a3 (48...Rb8 49.Qd3! b5 50.Qd5 Rb7 51.Rb7 Qd6 52.Rb5 Qd5 53.Rb8) 49.Qd3! Qa4 (49...Qd3 50.Ra7 Mate attack) 50.Ra7! Qa7 (50...Qa7 51.Qd5 Mate attack) 51.Ra7 (51.Qd5 Qb7 52.Qb7) 51...Ka7+– 52.Qd7 Ka6 53.Qe8 Ka5 54.Qe5 b5 55.g6 Ka4 56.g7 b4 (56...Ka5 57.g8Q Ka4 58.Qd4 b4 59.Qgc4 a2 60.Qb4) 57.g8Q a2 (57...Nc3 58.Qee8 Ka5 59.Bc7 Ka6 60.Qge6 Kb7 61.Qb8) 58.Qa8 (58.Qa2) 58...Kb3 59.Qed5 Kc3 60.Be5 (60.Qaa2 b3 61.Qab3) 60...Kc2 61.Qaa2 Kc1 62.Qb2 1–0. lemontlasker (1660) – mikebaldini, gameknot.com, 2015. (=1.Nf3 b6 2.b4 Bb7 3.e3 Nf6 4.Bb2 e6 5.a3 c5 6.b5 d5)

7.d4 Nbd7 8.Be2 Qc7 9.0–0 Bd6 10.c3 (10.dc5 bc5 11.Nc3 0–0+=) 10...c4 11.a4 a5 12.Ba3 0–0–0 13.Bd6 Qd6 14.Nbd2 Qc7 15.Re1 Rhg8 16.e4 (16.Qc2!?+=) 16...Ne4+= (worse is 16...de4 17.Ng5=) 17.Ne4 de4 18.Ng5 (18.Nd2 Bd5–/+) 18...Nf6 19.Bf1 h6 20.Nh3 g5 21.g3 (21.Qc1 Ng4 22.g3 e5–+) 21...Nd5–+ 22.f3 (22.Qe2–+) 22...ef3 (22...Nc3 23.Qc2 Qd6 24.Qc3 Qd4 25.Qd4 Rd4 26.Rac1 ef3 27.Bc4=) 23.Nf2 g4 24.Qd2 h5 25.Qh6 Rh8 (25...Nc3?! 26.Rac1 Rh8 27.Qd2–+) 26.Qd2 (26.Qg5 h4 27.gh4 f6–+ (27...Nc3?! 28.Rac1 g3 29.hg3–+)) 26...h4 27.Re5 (27.Nh1–+) 27...hg3 28.hg3 f6 29.Ng4 fe5 (29...fe5 30.Ne5 Qh7 31.Nf3 Qh1 32.Kf2 Rdf8–+) 0–1. Pergel,Laszlo – Pirisi,Gabor (2400), Szivarvany rapid, 1994.

7.Be2 a6 8.0–0 Bd6 9.Nc3 (9.ba6 Ba6 10.Nc3 0–0 11.Nb5 Bb5 12.Bb5 Nbd7 13.d3=) 9...0–0 10.ba6 Ba6 11.Nb5 Bb5 12.Bb5 Nbd7 13.d3 =.

7.Be2 a6 8.ba6 Ba6 9.Nc3 Be2 10.Qe2 Be7 11.0–0 0–0 12.Nb5 Ra5 13.Rfb1 =.

7.Be2 a6 8.Nc3 A) 8...Be7 9.ba6 (9.0–0 0–0 10.ba6 Ba6 11.Ba6 Na6 12.Rb1 Nc7 13.Qe2+=) 9...Ba6 10.Nb5 0–0 11.a4 Nc6 12.0–0 Ne4 13.Qb1=; B) 8...Nbd7 9.Rb1 (9.0–0 Bd6 10.ba6 Ba6 11.Ba6 Ra6 12.Qe2 Ra5 13.Nb5=; 9.ba6 Ba6 10.0–0 Be7 11.Ba6 Ra6 12.Qe2 Ra5 13.Nb5=) 9...Be7 10.0–0 0–0 11.ba6 Ba6 12.Ba6 Ra6 13.Nb5=; C) 8...d4 9.Nb1 (9.Na2 ab5 10.ed4 c4 11.Nc3 Ra5 12.0–0 Bd6 13.d3=) 9...de3 10.fe3 Bd6 11.Nc3 0–0 12.0–0 e5 13.ba6=.

7.Be2 Qc7 8.0–0 Nbd7 9.h3 Bd6 10.d3 0–0 =.

7.Be2 Bd6 8.0–0 A) 8...0–0 9.Ne5 (9.d4 c4 10.a4 a6 11.ba6 Ra6 12.Nc3 Nc6 13.Nb5+=; 9.Be5 a6 10.d4 Ne4 11.Bd6 Qd6 12.Nfd2 Rd8 13.c3+=) 9...Nfd7 10.f4 f6 11.Nf3 a6 12.Nc3 e5 13.Nh4=; B) 8...Nbd7 9.d4 a6 10.dc5 Nc5 11.Bd4 0–0 12.ba6 Ba6 13.Nc3+=.

7.Be2 Bd6 8.Be5 0–0 (8...a6 9.0–0 0–0 10.d4 Ne4 11.Bd6 Qd6 12.Nfd2 Nd2 13.Qd2+=; 8...Be5 9.Ne5 Nbd7 10.Nd7 Qd7 11.0–0 0–0 12.d4 a6 13.dc5+=) 9.d4 a6 10.0–0 Ne4 11.Bd6 Qd6 12.Nfd2 Rd8 13.c3 +=.

7.Be2 Bd6 8.h3 Nbd7 9.0–0 0–0 10.d3 Qe8 =.

7.g3 Nbd7 8.Bg2 a6 9.0–0 ab5 10.Nc3 Bc6 11.Qe2 =.

7.h3 Nbd7 8.c4 dc4 9.Bc4 Bd6 10.0–0 0–0 11.d3 =.

7.c4 Bd6

8.Qc2 0–0 9.Nc3 Nbd7 10.h3 Ne5 11.Ne5 –/+.

8.Nc3 0–0 9.cd5 ed5 10.d4 a6 (10...c4 11.Be2+=) 11.a4 (11.dc5 bc5 12.Be2 Qe7=) 11...Re8 (11...c4 12.Be2+=) 12.Be2 c4 13.0–0 Nbd7 14.Qc2 Ne4 15.Nd2 (15.Ne4 Re4 16.Ba3 Ba3 17.ba6 Ra6 18.Ra3 b5+=) 15...Nc3 16.Bc3 Nf6 17.Bf3 Qd7 18.Rfe1 (18.Rfb1!?+=) 18...ab5–/+ 19.ab5 Qb5 20.e4 (20.Ra8!? Ra8 21.Rb1–/+) 20...Ra1–+ 21.Ra1 (21.Ba1 de4 22.Be2–+) 21...de4 22.Be4?? (22.Be2 e3 23.fe3–+) 22...Ne4 23.Rb1 (23.Ne4 Be4 24.Qc1–+) 23...Nd2 24.Bd2 (24.Rb5?? Re1) 24...Qd5 25.f3 Qd4 26.Kh1 Qh4 27.f4 (27.g3 Bf3 28.Kg1 Bc5 29.Be3 Be3 30.Kf1 Qh3 31.Ke1 Bf4 32.Qe4 Re4 33.Kf2 Qg2) 27...Bf4 28.Bf4 (28.Qh7 Qh7 29.Bf4 Qb1 30.Bc1 Qc1) 28...Re1 29.Re1 Qe1 0–1. wellhairedbeast – cyrano (2610), gameknot.com, 2014. (=1.Nf3 Nf6 2.b4 e6 3.a3 b6 4.Bb2 c5 5.b5 d5 6.e3 Bb7 7.c4 Bd6)

8.Nc3 0–0 9.h3 Nbd7 10.Qc2 Ne5 11.Ne5 –/+.

8.d4 Nbd7 9.Nbd2 0–0 10.Be2 Qc7 11.Rc1 e5 12.de5 Ne5 13.Ne5 Be5 14.Be5 Qe5 15.0–0 Rad8 16.Nf3 Qb2 17.Rb1 Qa3 18.Ra1 Qb4 19.Rb1 Qa3 20.Ra1 Qb4 21.Rb1 dc4 22.Qc2 Be4 23.Rb4 Bc2 24.Rc4 Bd3 25.Bd3 Rd3 26.Ra4 Ra8 27.Rb1 (27.Rfa1!?–/+) 27...Nd5 28.Raa1 Nc3 29.Rb2 Rad8 30.g3 Rd1 31.Rd1 Rd1 (31...Nd1 32.Rc2 h5 33.Kf1=) 32.Kg2 f6 33.Nd2 (better is 33.Rb3 Rc1 34.h4–+) 33...Nb5! 34.Ne4 (34.Rb5 Rd2 Deflection (34...Rd2 Overloading)) 34...Nd6 35.Nc3 Rd3 36.Ne2 g5 37.g4 Nc4 38.Rb1 a5 39.Ng3 a4 40.Nf5 a3 41.h4 gh4 42.f3 (42.Nh4 b5! 43.Rc1–+) 42...a2 43.Ra1 Rd2 44.Kh3 Na5 0–1. Schmidbauer,Josef (1605) – Reich,Markus (1855), Niederbayernliga, 2004.

8.cd5 ed5 9.Bd3 0–0 10.0–0 Nbd7 11.Bf5 +=.

8.cd5 ed5 9.Be2 =.

8.Be2 0–0 9.0–0 Nbd7 10.Qc2 Qc7 11.h3 e5 12.cd5 Nd5 13.d3 a6 14.a4 Nb4 15.Qc3 ab5 16.ab5 Nf6 17.Nbd2 (17.Ne5? Nbd5 18.Qc4 Be5 19.Be5 Qe5 20.Ra8 Ra8–+) 17...Rfe8 18.Ra8 Ba8 19.e4 Nd7 20.Ra1 f6 21.Nc4 Nf8 22.Qb3 Ne6 23.Nfd2 Bf8? (better is 23...Kh8!?=) 24.Bg4 Qd8? (better is 24...Bb7+/–) 25.Be6 Re6 26.Ne5 Bd5 (26...Nd5 27.ed5 Bd5 28.Nec4+–) 27.ed5 Qd5 28.Qd5 Nd5 29.Nd7 Bd6 30.Ne4 Bc7 31.Kf1 Re7 32.Ndc5! bc5 33.Nc5 Bb6 34.Ra8 Kf7 35.Na4 Rb7 36.Nb6 Rb6 37.Ra5 Kg6 38.Bd4 Rb7 39.b6 Nb4 40.Ra3 Nc6 41.Be3 Kf5 42.Ra8 Ne7 (42...Ke5 43.Ke2+–) 43.Ke2 (43.Ra7 Rb6 44.Bb6 Nc8 45.Ra5 Ke6+–) 43...Ke5 (43...Ke6 44.Ra7 Rb8 45.Bc5+–) 44.g4 (better is 44.Ra7 Rb6 45.Bb6+–) 44...Nc6 45.f4 Ke6 46.Rh8 h6 47.f5 Kd7 (47...Kd6 48.Kd2+–) 48.Rh7 (48.Rh7 Kc8 49.Bc5+–) 1–0. Rodriguez,Alberto2 (2350) – Della Morte,Pablo, ARG–chT Buenos Aires, 1997. (=1.Nf3 Nf6 2.b4 e6 3.a3 b6 4.Bb2 Bb7 5.e3 c5 6.b5 d5)

8.Be5 Be5 9.Ne5 Qd6 10.Ng4 Nbd7 11.Nf6 +=.

7.c4 Nbd7

8.d3 Be7 9.Nbd2 0–0 10.Be2 Qc7 11.0–0 Rfd8 12.Qc2 Rac8 13.Rfd1 Bd6 14.g3 Qb8 15.cd5 Nd5 16.Nc4 Bc7 17.d4 Qa8 18.dc5 Nc5 19.Ng5 f5 20.Ne6 (20.Bd4!? h6 21.Bc5 hg5 22.Bd4+=) 20...Ne6+= 21.Qf5 Nf8 22.Qg5 Ng6 23.h4 Nde7 24.h5 Bh1 25.Bf1 Rd1 26.Rd1 h6 (better is 26...Rd8 27.Rd8 Bd8+–) 27.Qg4 Bf3?! (27...Qe4 28.Bh3 Re8+–) 28.Qe6 Kh7 29.hg6 Ng6 30.Rd7 (30.Rd7 Rg8 31.Bd3+–) 1–0. Romero Holmes,Alfonso (2495) – Nunez Perez,Alan, Ponferrada op1, 1992. (=1.Nf3 Nf6 2.b4 e6 3.a3 b6 4.e3 Bb7 5.Bb2 c5 6.b5 d5)

8.d4 cd4 9.ed4 Bd6 10.Nbd2 0–0 11.Be2 Rc8 12.0–0 Re8 13.Ne5 Nf8 (13...a6 14.cd5 Bd5 15.ba6=) 14.Rc1 Ne4 15.Ne4 de4 16.f4 (16.Bh5 Be5 17.de5 Qg5=) 16...Ng6 (16...f6!? 17.Ng4 Ng6=) 17.Qa4+= Nf4 18.Rf4 Be5 19.de5 Qd2 20.Rcf1 Re7 (better is 20...Rc7 21.c5 Bd5 (worse is 21...Qe2 22.R4f2 Qd3 23.Rd1+/–) 22.cb6 ab6=) 21.Qb4+– Rd7 22.Qd2 Rd2 23.Bh5?? (better is 23.Rf7 Re2 24.Bc3+–) 23...e3+= 24.Bf7 Kh8 25.Rg4 Rb2 26.Be6 e2 (26...Rd8!?+=) 27.Re1+/– Rf8 (27...Rd8!?+/–) 28.Rd4+– g5 29.Bd5 Bd5 30.cd5 (30.Rd5?! Rf4+/–) 30...Rb5 31.e6 Kg7 (31...Kg8 32.e7 Re8 33.Re2+–) 32.e7 Rh8 (32...Rf1 33.Rf1 ef1Q 34.Kf1 Rb1 35.Ke2 Rb2 36.Kd3 Rb3 37.Kc4 Re3+–) 33.Re2 Rb1 (33...h5 34.d6 Rc8 35.d7 Rc1 36.Kf2 Rf5 37.Ke3 Re5 38.Re4 Re4 39.Ke4 Rc4 40.Kd3+–) 34.Kf2 Kf7 (34...Rf8 35.ef8R g4 36.Rdf4 Rb2 37.R8f7 Kg6 38.Kg3 Rb3 39.Kh4 Rh3 40.gh3 g3 41.R4f6) 35.d6 (35.d6 Rb2 36.Rb2+–) 1–0. Croy,George – Rivise,Irving, California State–ch, 1949. (=1.Nf3 Nf6 2.b4 e6 3.a3 b6 4.e3 Bb7 5.Bb2 c5 6.b5 d5)

8.d4 Bd6 9.Nbd2 0–0 10.Be2 (10.cd5 Bd5 11.Rc1 Qe7=) 10...Qe7 (10...a6 11.ba6 Ba6 12.0–0+=) 11.Ne5 (11.cd5 Bd5 12.0–0 Rfd8=) 11...dc4 (11...cd4!? 12.ed4 dc4+=) 12.Ndc4= Bg2 (12...Rad8!? 13.Nc6 Bc6 14.bc6 Nb8=) 13.Rg1+= Bd5 14.Nc6 (better is 14.Nd6!? Qd6 15.Nd7 Qd7 16.dc5+/–) 14...Bc6+= 15.bc6 Nb8 (worse is 15...Bh2 16.Rg2 Bc7 17.cd7+/–) 16.Nd6 Qd6 17.dc5 Qh2 18.Rg3 Qh1 19.Bf1 White threatens strongly Rxg7 19...Ne8? (better is 19...Qh6+/–) 20.Qd8+– Qc6 (20...e5 21.c7 Na6+–) 21.Bg7! Ng7 Deflection from f6 (21...Qe4 22.Bh6 Qg6 23.Rg6 hg6 24.Bf8 Kf8+–) 22.Qf6 1–0. b4_player – opponent, gamecolony.com, 2007.

8.d4 Ne4 9.Bd3 Ndf6 10.Nc3 (10.0–0 Bd6=) 10...Nc3 (10...cd4!? 11.Nd4 Nc3 12.Bc3 dc4 13.Bc4 Qc7+=) 11.Bc3= Be7 12.0–0 0–0 13.Ne5 Bd6 14.Bb2 Qc7 15.f4 dc4 16.Nc4 Be4 17.Be2 (17.dc5!? Bd3 18.Qd3 Bc5 19.Bf6 gf6 20.f5+=) 17...Rac8 18.Rc1 Qd7 (18...Be7 19.Bd3=) 19.a4 (19.Nd6 Qd6 20.dc5 Qd1 21.Rfd1 Rc5 22.Rc5 bc5 23.Bf6 gf6+–) 19...Be7 20.Ne5 (20.dc5 Qd1 21.Rfd1 Bc5+=) 20...Qd5 21.Bc4 Qb7 22.Rf2 Rfd8 23.h3 Nd5 24.Qb3 f6 (24...Bd6!?=) 25.Nc6+= Rd7 26.g4 (better is 26.f5!?+/–) 26...Bf8= 27.f5 ef5 28.gf5 (better is 28.Rf4 Qc7 29.Kf1=) 28...Re8?? (better is 28...Qc7+=) 29.Rf4+– Kh8? (better is 29...Qc7 30.Ne5! fe5 31.Re4 Qd8 32.dc5 Bc5 33.Bd5 Kh8+–) 30.Re4! Re4 31.Bd5 Rh4 32.e4 Qc7 33.e5 cd4 34.Be6 d3 35.Bd7 Bc5 36.Kg2 Qd7 37.ef6 (37.ef6 Rd4 38.Nd4 gf6 39.Qd3+–) 1–0. Romero Jaime,Pedro (1735) – Farinas Lucas,Juan Antonio (1770), Madrid Low cost Cup, 2009. (=1.Nf3 Nf6 2.b4 d5 3.e3 e6 4.a3 c5 5.b5 b6 6.Bb2 Bb7)

8.d4 Be7 9.Nc3 0–0 10.Bd3 (10.Rc1 Rc8=) 10...Re8 (10...cd4!? 11.Nd4 dc4 12.Bc4 Qc7+=) 11.0–0= Qc7 12.Rc1 (12.cd5 ed5 13.dc5 bc5=) 12...Bd6 (12...cd4!? 13.Na4 de3 14.fe3 Qd6+=) 13.cd5= ed5 14.dc5 bc5 15.Bf5 Ne5 16.h3 (16.Na4!? c4 17.Nd4=) 16...Nf3–/+ 17.gf3 Re5 18.Bb1?? (better is 18.Qd3!? g6 19.Bg4–/+) 18...Rh5 (18...Rg5 19.Kh1 Qd7 20.Bh7 Nh7 21.Nd5 Qh3) 19.Kg2?? (19.Re1 Qd7 20.Kf1 Re8–+) 19...Qd7 (19...Rg5 20.Kh1 Qd7 21.Bh7 Nh7 22.Nd5 Qh3) 20.Rh1–/+ Rg5 (20...Be5 21.Bd3–/+) 21.Kf1–+ d4 22.Ne4 (22.ed4 cd4 23.Qd4 Bf3 24.Qe3 Bh1 25.Qg5 Qh3 26.Ke1 Re8 27.Kd2–+) 22...Ne4 (22...Qb5?! 23.Bd3 Qb2 24.Ng5 Qa3 25.Rg1–/+) 23.Be4 Qb5 (23...Be4 24.fe4 Qb5 25.Qe2–+) 24.Qe2 Qe2 (24...Qb6 25.Bb7 Qb7 26.ed4 cd4 27.Bd4 Ba3 28.Rd1–+) 25.Ke2 Be4 (25...Ba6 26.Kd1 Rd8 27.f4–+) 26.fe4–/+ de3 27.Ke3 Rb8 28.Rc2 Rb3 29.Ke2 c4 30.Rd1 Be7 31.Rd7= Kf8 32.Ra7+= f6 33.Bc3 Ra3 34.Re7 Rc3 35.Rc3 Ke7 36.Rc4 Rh5 37.Rc3 Rh4 38.Re3 Ke6–/+ 39.Kd3 Ke5 40.Rg3 g5 41.Re3 Rf4 42.Re2? Rf3–+ 43.Kd2 Rh3 44.Re3 Rh4 45.f3 Kf4 46.Ke2 h5 47.Rd3 Rh2 48.Kf1 h4 (48...h4 49.Kg1 Rc2–+) 0–1. bcholy – willow27, ChessWorld.net, 2005.

8.cd5 A) 8...Nd5 9.Nc3 (9.h3 N7f6= 10.Qa4 Be7 11.Bc4=) 9...N5f6 10.Qc2 Bd6 11.Bd3=; B) 8...ed5 9.Be2 Bd6 10.Nc3 0–0 11.0–0=.

8.Be2 dc4 9.Bc4 Bd6 10.d3 (10.Nc3 0–0 11.d3 Re8 12.Ne4 Ne4 13.de4 Qc7 14.Qc2=; 10.0–0 Ng4 11.h3 Nge5 12.Be2 0–0 13.d4 cd4 14.Bd4=) 10...0–0 11.0–0 Qc7 (11...a6 12.Nbd2 Qe7 13.ba6 Ba6 14.Qb3=) 12.Nbd2 Ne5 (12...a6 13.Qc2= Ne5 14.Ne5=) 13.Ne5 (13.Be5 Be5 14.Ne5=) 13...Be5 14.Be5 Qe5 15.Qe2 (15.a4 Qd6=) 15...Nd5 (15...Rfd8 16.a4=) 16.Ne4 f5 (16...Rfd8 17.f4 Qf5 18.g4=) 17.f4 Qc7 18.Ng5 Rf6 (18...Qd6 19.d4=) 19.Rfc1 (19.e4 fe4 20.Qe4 Rg6+/–) 19...Qe7 20.Nf3 Raf8 (20...a6 21.a4+=) 21.Rc2 (21.Ne5 Rh6+=) 21...Rh6 22.Rac1 Rff6 (22...Nc7 23.Ne5+=) 23.Ne5 Qd8 (23...Rf8 24.Qf2+=) 24.Bb3 (24.d4 cd4 25.Bd5 Qd5+/–) 24...Qd6 (24...Rf8 25.d4 cd4 A) worse is 26.ed4 Nf4 27.Qd2 Qh4–/+ (27...Ng2?! 28.Rc7 Be4 29.Rc8 Qc8 30.Rc8 Rc8 31.Qh6 gh6 32.Be6 Kg7 33.Bc8–/+); B) 26.Bd5 Qd5 27.Rc7+=) 25.a4 (25.Qf3 Rf8+/–) 25...Ne7 (25...Rf8 26.a5+=) 26.d4 cd4 27.Qd2 Qa3 28.Qd4 Qb3 29.Rc7 Bd5 30.Re7 Rf8 31.Nf3 (31.e4 Be4 32.Rf7 Rf6 33.Ra7 Rb8+–) 31...Rg6 32.Nh4 Qa2 33.g3 h6 (33...a6 34.Rec7 (34.Qb6?! ab5 35.ab5 Qe2+/–; 34.ba6?! Rgf6+/–) 34...Rgf6 35.ba6+/–) 34.Rcc7 (34.Ra7 Rg4 35.Rac7+/– (35.Qb6 Rh4 36.Qe6 Be6 37.gh4 Bd5–+)) 34...Qb1?? (better is 34...Rff6+/–) 35.Kf2+– Qa2 36.Ke1 Qb1 37.Kd2 Qa2 38.Rc2 Qa3 (38...Qc2 39.Kc2 Be4 40.Kd2 Rgf6 41.Ra7 R6f7 42.Qb6 Ra7 43.Qa7 Rd8 44.Ke1 Rd3+–) 39.Ng6 Rf6 40.Rc8 1–0. Fritz,Harry – Ranby,Hans, corr 3GMMsemi–07, 1998.

8.Be2 dc4 9.h3 Bd6 10.0–0 Qc7 11.a4 =.

8.h3 dc4 9.Bc4 A) 9...a6 10.ba6 (10.Nc3 Bd6 11.ba6 Ba6 12.Ba6 Ra6 13.Qe2 Ra5 14.Nb5 Be7 15.d4=; 10.d4 Be7 11.ba6 Ba6 12.Ba6 Ra6 13.dc5 bc5 14.0–0 0–0 15.Qc2=) 10...Ba6 11.Ba6 Ra6 12.Qe2 Ra5 13.0–0 Bd6 14.e4 e5 15.Nc3=; B) 9...Be7 10.Qe2 (10.0–0 a6 11.d4 ab5 12.Bb5 0–0 13.Qe2 Bd6 14.Nbd2 Qe7 15.Nc4=; 10.Nc3 0–0 11.d4 a6 12.0–0 Qc7 13.dc5 Qc5 14.Be2 ab5 15.Rc1+=) 10...0–0 11.0–0 Bd6 12.d4 Rc8 13.Nbd2 cd4 14.Nd4 Qe7 15.Rfd1=; C) 9...Bd6 10.Nc3 (10.0–0 0–0 11.Nc3 Qe7 12.Qe2 Rfd8 13.Rfc1 Bf3 14.Qf3 Ne5 15.Qe2=; 10.d4 0–0 11.0–0 a6 12.Nc3 Qc7 13.Be2 Rfd8 14.Rc1 cd4 15.Qd4=) 10...0–0 11.0–0 a6 12.ba6 Ba6 13.Nb5 Qe7 14.d3 Rfd8 15.Qe2=.

8.h3 Bd6 A) 9.Nc3 A1) 9...a6 10.d4 (10.cd5 ed5 11.ba6 Ba6 12.Bb5 Bb5 13.Nb5 Bb8 14.0–0 0–0 15.d3+=; 10.Rb1 0–0 11.ba6 Ba6 12.d3 Qe7 13.Qb3 Bb7 14.Nb5 e5 15.Be2=) 10...dc4 11.Bc4 0–0 12.ba6 Ba6 13.Nb5 Bb5 14.Bb5 Ra5 15.a4=; A2) 9...Rc8 10.Be2 (10.Rc1 0–0 11.d4 dc4 12.Bc4 cd4 13.Qd4 Qe7 14.Nb1 Bf3 15.gf3–/+; 10.cd5 ed5 11.Be2 0–0 12.0–0 Re8 13.Qa4 Ra8 14.d4 c4 15.Qc2+=) 10...d4 11.Na4 e5 12.Nh4 0–0 13.Nf5 Ne8 14.0–0 Bc7 15.d3=; A3) 9...0–0 10.cd5 (10.d4 Rc8 11.Rc1 dc4 12.Bc4 cd4 13.Qd4 Qe7 14.Nb1 Bf3 15.gf3–/+; 10.d3 Re8 11.Rc1 Qe7 12.Be2 dc4 13.dc4 Red8 14.0–0 e5 15.Qc2+=) 10...ed5 11.Be2 d4 12.ed4 cd4 13.Na4 d3 14.Bd3 Re8 15.Kf1+=; B) 9.d4 B1) 9...0–0 10.cd5 (10.Nc3 Rc8 11.Rc1 dc4 12.dc5 Bc5 13.Nb1 Bd5 14.Nbd2 a6 15.ba6+=; 10.Be2 dc4 11.Bc4 a6 12.0–0 ab5 13.Bb5 Qe7 14.Qe2 Rfc8 15.Rd1+=) 10...Nd5 11.e4 Nc7 12.Nc3 a6 13.ba6 Ba6 14.Ba6 Ra6 15.0–0=; B2) 9...Rc8 10.cd5 (10.Nbd2 cd4 11.Nd4 0–0 12.Rc1 Ne5 13.cd5 Rc1 14.Qc1 Bd5 15.f4=; 10.Nc3 dc4 11.d5 ed5 12.Bc4 d4 13.Na4 Bf3 14.Qf3 Ne5 15.Qe2–/+) 10...Bd5 11.Nc3 Bf3 12.Qf3 cd4 13.ed4 Rc7 14.Bd3 0–0 15.0–0=; B3) 9...Qe7 10.dc5 (10.cd5 ed5 11.Nh4 Qe4 12.Nf3 c4 13.Nc3 Qe6 14.Ng5 Qf5 15.Nf3+=; 10.Be2 0–0 11.0–0 Rfc8 12.cd5 Nd5 13.Nc3 a6 14.Nd5 Bd5 15.dc5+=) 10...bc5 11.Bd3 dc4 12.Bc4 Nb6 13.Nbd2 0–0 14.Bd3 Rfd8 15.Qc2+=; C) 9.Be2 C1) 9...0–0 10.d3 (10.cd5 Nd5 11.Qa4 Nc7 12.Qg4 Nf6 13.Qh4 Nfd5 14.Qg4 f6 15.d4+=; 10.d4 dc4 11.Bc4 a6 12.Nbd2 cd4 13.ba6 Bc6 14.Bd4 b5 15.Bb3+=) 10...a6 11.ba6 Ra6 12.Nc3 Qe7 13.Nb5 Bb8 14.Qb3 e5 15.0–0=; C2) 9...a6 10.ba6 (10.cd5 ed5 11.0–0 0–0 12.Nc3 Qe7 13.ba6 Ba6 14.Nb5 Rfe8 15.Qc2=; 10.0–0 dc4 11.Bc4 ab5 12.Bb5 0–0 13.Nc3 Qe7 14.d3 Rfd8 15.Qe2+=) 10...Ba6 11.d3 0–0 12.0–0 Qe7 13.Qb3 Bb7 14.Nc3 dc4 15.dc4=; C3) 9...dc4 10.Bc4 (10.0–0 0–0 11.Bc4 a6 12.d4 ab5 13.Bb5 Qe7 14.Qe2 Rfc8 15.Rd1+=; 10.Nc3 Ne5 11.Ne5 Be5 12.Bc4 Bg2 13.Rg1 Bh3 14.Qf3 Bf5 15.Rg7–/+) 10...a6 11.ba6 Ba6 12.Ba6 Ra6 13.Qe2 Ra8 14.e4 Bf4 15.0–0+=; D) 9.cd5 D1) 9...Bd5 10.d4 (10.Be2 e5 11.Nc3 e4 12.Ng5 Bb7 13.d3 ed3 14.Bd3 Ne5 15.Bf5=; 10.Nc3 Bb7 11.Bc4 0–0 12.0–0 Qe7 13.Qe2 Rad8 14.e4 Ne5 15.Rfd1+=) 10...Rc8 11.Nc3 Bf3 12.Qf3 0–0 13.Bd3 e5 14.d5 Rc7 15.Bc4+/–; D2) 9...ed5 10.Be2 (10.Bd3 a6 11.Nc3 0–0 12.0–0 Re8 13.Bf5 Qe7 14.d4 c4 15.ba6+=; 10.Nc3 0–0 11.Be2 d4 12.ed4 cd4 13.Na4 d3 14.Bd3 Re8 15.Kf1+=) 10...0–0 11.0–0 a6 12.Nc3 Qe7 13.ba6 Ba6 14.Nb5 Rfe8 15.Qc2=.

8.h3 Be7 9.Nc3 A) 9...Bd6 10.cd5 (10.d4 0–0 11.Rc1 Rc8 12.cd5 Nd5 13.Nd5 Bd5 14.Bc4 Qf6 15.Qe2+=; 10.Be2 dc4 11.Bc4 0–0 12.0–0 Qe7 13.Qe2 Rfd8 14.Rfc1 Bf3 15.Qf3+=) 10...ed5 11.d4 c4 12.Nh4 g6 13.Be2 0–0 14.Nf3 Qe7 15.0–0=; B) 9...0–0 10.cd5 (10.d4 Rc8 11.cd5 Nd5 12.Rc1 Nc3 13.Rc3 Bd5 14.Bd3 cd4 15.Rc8+=; 10.Rc1 a6 11.cd5 Nd5 12.d4 Nc3 13.Rc3 Bf6 14.ba6 Bf3 15.gf3+=) 10...Nd5 11.Qc2 N5f6 12.Be2 a6 13.ba6 Ba6 14.d3 Bd6 15.0–0=; C) 9...dc4 10.Bc4 (10.Rc1 Bd5 11.Qe2 a6 12.ba6 Ra6 13.e4 Bc6 14.Qc4 Ra5 15.Qb3+=; 10.Rb1 Bd5 11.Qe2 a6 12.ba6 Ra6 13.e4 Bc6 14.Qe3 Ra5 15.Bc4+=) 10...0–0 11.d3 Bd6 12.0–0 Qe7 13.Qe2 Rfd8 14.Rfd1 Bf3 15.Qf3+=.

8.h3 Be7 9.d4 A) 9...0–0 10.cd5 (10.Nc3 Rc8 11.cd5 Nd5 12.Rc1 Nc3 13.Rc3 Bf6 14.Bd3 cd4 15.Rc8+=; 10.Be2 a6 11.Nc3 cd4 12.Qd4 dc4 13.Bc4 Bc5 14.Qh4 Bf3 15.gf3+=) 10...Nd5 11.Bd3 a6 12.Qc2 ab5 13.Bh7 Kh8 14.Bd3 c4 15.Be2=; B) 9...dc4 10.Bc4 (10.Nbd2 a6 11.Bc4 0–0 12.0–0 ab5 13.Bb5 Ra5 14.a4 Ra7 15.Qe2=; 10.dc5 Nc5 11.Qd8 Rd8 12.Bc4 0–0 13.Nc3 Nfd7 14.Ne2 Na4 15.Bd4+=) 10...0–0 11.0–0 a6 12.Qe2 ab5 13.Bb5 Bd6 14.Nbd2 cd4 15.Nd4=; C) 9...cd4 10.Bd4 (10.Nd4 dc4 11.Bc4 Qc7 12.Bf1 Nc5 13.Nc3 0–0 14.Qc2 Rfd8 15.Rc1+=) 10...0–0 11.cd5 Nd5 12.e4 N5f6 13.e5 Nd5 14.Be2 Nf4 15.0–0+=.

8.h3 Be7 9.cd5 A) 9...ed5 10.Be2 (10.Nc3 0–0 11.Be2 Re8 12.0–0 Bd6 13.d4 c4 14.Nh4 Bb8 15.Nf5+=; 10.Qc2 0–0 11.Be2 a6 12.0–0 ab5 13.Bb5 Ra5 14.a4 Re8 15.d4=) 10...a6 11.0–0 0–0 12.Nc3 Re8 13.Qc2 Nf8 14.d4 c4 15.a4=; B) 9...Bd5 10.Nc3 Bb7 11.d4 0–0 12.Rc1 a6 13.ba6 Ba6 14.Ba6 Ra6 15.Nb5=.

8.h3 Be7 9.Be2 0–0 (9...dc4 10.Bc4 (10.Nc3 a6 11.Bc4 0–0 12.d4 cd4 13.Qd4 Qc7 14.ba6 Ba6 15.Ba6+=; 10.0–0 a6 11.Bc4 0–0 12.d3 ab5 13.Bb5 Ne8 14.Nbd2 Nc7 15.Bd7+=) 10...a6 11.0–0 ab5 12.Bb5 0–0 13.d4 Ne4 14.Nc3 Nc3 15.Bc3=; 9...Bd6 10.d4 (10.0–0 dc4 11.Bc4 0–0 12.Nc3 Qe7 13.Qe2 Rfd8 14.Rfc1 Bf3 15.Qf3+=; 10.cd5 Nd5 11.0–0 0–0 12.Nc3 a6 13.Nd5 ed5 14.Qc2 ab5 15.Bb5=) 10...0–0 11.0–0 a6 12.Nc3 dc4 13.Bc4 Qc7 14.Be2 Rfd8 15.Rc1=) 10.0–0 (10.d3 dc4 11.dc4 Qc7 12.Nc3 Rfd8 13.Qc2 a6 14.0–0 Ra7 15.Rad1=; 10.d4 a6 11.cd5 Nd5 12.ba6 Ba6 13.Ba6 Ra6 14.0–0 Qa8 15.Qe2+=) 10...Ne4 (10...dc4 11.Bc4 a6 12.d4 cd4 13.Nd4 Ne5 14.Bb3 Qc7 15.Qe2=) 11.d3 Nd6 (11...Nef6 12.Nc3 a6 13.ba6 Ra6 14.Nb5 Qb8 15.Qb3=) 12.Nbd2 (12.Nc3 Bf6 13.Qc2 d4 14.ed4 cd4 15.Ne4+=) 12...a5 (12...a6 13.ba6 Ra6 14.Qb3 Qa8 15.Rfd1=) 13.a4 (13.Qc2 Bf6 14.Rad1 Re8 15.Bf6=) 13...f5 (13...Bf6 14.Qc2 Re8 15.cd5=) 14.Rb1 (14.Qb3 Bf6 15.Rad1=) 14...Nf7 (14...Bf6 15.Qb3=) 15.d4 (15.cd5+=) 15...Qc7 16.Qc1 Rac8 17.dc5 Nc5 18.Nd4 Nd8 19.Qd1 Ba8 20.N4f3 Bd6 21.Rc1 Qe7 22.cd5 Bd5 23.Bc4 Bb7 24.Be5 Nf7 25.Bd6 Nd6 26.Ne5 Qg5 27.Ndf3 Qe7 28.Nd4 Nc4 29.Rc4 Bd5 30.Rc1 f4 31.Nec6 Qf6 32.Rc5?? (better is 32.ef4 Qh4 33.Qg4 Qg4 34.hg4=) 32...bc5–+ 33.Nb3 Qg5 (33...fe3 34.Nba5 Qb2 35.Ne7 Kf7 36.Nc4–+) 34.Qg4?! (34.f3 Bc6 35.bc6 Rc6 36.Na5 Ra6–+) 34...Qg4 35.hg4 Rf7 (better is 35...Rc6!? 36.bc6 Bb3 37.ef4–+) 36.Nc5? (better is 36.Nba5 fe3 37.fe3 Rf1 38.Kf1–/+) 36...fe3 37.f3 Bc6 38.bc6 Rfc7 39.Nb7 Rc6 40.Na5 Rc2 41.Nb3 R8c4 42.Re1 R2c3 43.Na5 Ra4 44.Nb7 Ra2 45.Nd6 Rd3 46.Ne4 h6 47.Kf1 Kf7 48.Re2 Rd1 49.Re1 Re1 50.Ke1 Rg2 51.Kf1 Rc2 52.Ke1 Kg6 53.Kf1 h5 54.gh5 Kh5 55.Ng3 Kg5 56.Ne2 Re2! 57.Ke2 Kf4 (57...Kf4 58.Ke1 Kf3–+) 0–1. Paschenko,Petr – Kiselyov,Aleksandr, Astrakhan RUS, City Ch, 2011.

8.Be2 Bd6

9.0–0 dc4 10.a4= Qc7 11.Na3 =.

9.0–0 dc4 10.Bc4 Ng4 11.h3 Nge5 12.Be2 0–0 13.d4 cd4 14.Bd4 =.

9.Nc3 0–0 (9...dc4 10.Bc4 0–0 11.d4 cd4 12.Qd4 Qc7 13.Rc1 Rfd8 14.Be2+=) 10.d4 (10.cd5 ed5 11.0–0 Re8 12.Qc2 Ne5 13.Rfe1 Nf3 14.Bf3+=) 10...Rc8 11.cd5 Nd5 12.Rc1 cd4 13.Nd5 Rc1 14.Bc1 +=.

9.cd5 ed5 10.0–0 0–0 11.h3 =.

9.cd5 Nd5 10.0–0 (10.Nc3 0–0 11.Nd5 ed5 12.Qc2 a6 13.0–0 Re8 14.ba6=; 10.d4 0–0 11.Nbd2 a6 12.0–0 ab5 13.Bb5 Ba6 14.a4=; 10.Qc2 0–0 11.Nc3 Nc3 12.Qc3 Nf6 13.Rd1 Qe7 14.0–0=) 10...0–0 11.Qa4 Nc7 12.d4 a6 13.dc5 bc5 14.ba6 =.

9.0–0 0–0

10.d3 a6 11.ba6 Ra6 12.cd5 Nd5 13.Nbd2 Bc6 14.d4 =.

10.d3 dc4 11.dc4 +=.

10.d4 a6 11.cd5 Nd5 12.Nc3 Nc3 13.Bc3 ab5 14.Bb5 +=.

10.d4 dc4 11.Nbd2= c3 12.Bc3 Ne4 (12...Qc7 13.Rc1=) 13.Ne4= Be4 14.Nd2 (14.dc5 Bc5 15.Qa4 f5=) 14...Bg6 (14...Bd5 15.Nc4 Qg5 16.g3+=) 15.Nc4 Be7 16.Bf3 Rc8 17.d5 ed5 18.Qd5 Nf6 (18...Qc7 19.Rfd1 Bf6 20.Bf6 Nf6 21.Qe5=) 19.Qb7 (19.Qe5 Bc2=) 19...Rc7 20.Rfd1 (better is 20.Qa6+=) 20...Rb7–/+ 21.Rd8 Rd8 22.Bb7 Bd3 23.Ne5 Bb5 24.a4 (24.Nc6 Bc6 25.Bc6 Rd6–/+) 24...Be8 (24...Ba4 25.Bf3 b5 26.Nc6–+) 25.a5 (better is 25.Nc6!? Bc6 26.Bc6–/+) 25...b5–+ 26.a6 (26.Rc1 Nd5 27.Be1 b4–+) 26...Nd5 (26...b4 27.Be1–+) 27.Ba5 Rd6 28.e4 (28.Rc1 f6 29.Nd3 c4–+) 28...Nb6 29.Nc6?? (better is 29.Ng4–+) 29...Nc8 (better is 29...Bc6 30.Bb6 Bb7 (worse is 30...ab6 31.Bc6 Rc6 32.a7+/–) 31.Bc5 Ra6 32.Ra6 Bc5–+) 30.Ne7+= Ne7 31.Bc7 Re6 (31...Rd3!? 32.Bb8 c4 33.Ba7 c3=) 32.Bb8+= Nc6 33.Bc6 Bc6 34.Ba7 c4 35.f3 b4 36.Bc5 b3 37.a7 Re8 (37...f6 38.Kf2 Kf7 39.Bd4+=) 38.Bd4 Ba8 (38...f6!? 39.Kf2 Kf7+/–) 39.Ra4+– Rc8?? (better is 39...f5+–) 40.Rb4 f6 (40...Kh8 41.Rb8 Rg8+–) 41.Rb8 Rf8 42.Bc5 Kf7 43.Rf8 Kg6 44.Bd4 (44.Bd4 Bb7 45.Kf2+–) 1–0. Stefanova,M – Draganova,P, V. Tarnovo, 2005.

10.d4 Qc7 11.Nbd2= (11.cd5 Bd5 12.Nc3=).

10.d4 Ne4 11.Nc3 =.

10.cd5 Bd5 11.Nc3 =.

10.cd5 Nd5 11.Qa4 Nc7 12.d4 a6 13.dc5 Nc5 14.Qg4=.

10.cd5 Nd5 11.Nc3 Qc7 +=.

10.cd5 Nd5 11.h3 =.

7.c4 Be7

8.Qb3 0–0+= 9.a4 Nbd7 10.d4 Qc7 11.Nbd2 h6 (11...cd4 12.ed4 Rfc8 13.Rc1+= Qd8 14.Be2 dc4 15.Bc4+=) 12.Rc1 (12.cd5 Bd5 13.Qc2+= Rfc8 14.e4 Bb7 15.Bd3+=) 12...Nh7 (12...Rac8 13.cd5 Bd5 14.Bc4= cd4 15.Bd4=) 13.dc5 (13.cd5 ed5 (13...Bd5 14.Qc2 Nhf6 15.e4=) 14.dc5 bc5= (14...Nc5 15.Qd1+=) 15.Bd3=) 13...Nc5= (worse is 13...Qc5 14.cd5 Qd5 15.Qd5 ed5 16.Rc7+/–) 14.Qc2 (14.cd5 Bd5 15.Qc2 Nf6=) 14...f5 (14...Nf6 15.cd5 Nd5 16.Bc4=) 15.Be2 (15.cd5 Bd5 16.Bc4 Nf6+=) 15...Rad8 (15...Rac8 16.cd5 Bd5 17.Bc4=) 16.0–0 (16.cd5 Bd5 (worse is 16...Rd5 17.Bc4+/–) 17.0–0 Bd6=) 16...Ng5 (16...Bd6 17.cd5 Bd5 18.Bc4+=) 17.Ng5 (17.Be5 Nf3 18.Nf3 Bd6 19.Bd6 Qd6=) 17...hg5 18.Nf3 (18.Rfd1 Bd6 19.h3 Bh2 20.Kh1 g4 21.hg4 fg4 22.cd5 Rd5 23.Bg4 Rf2+=) 18...g4 19.Ne5 (19.Be5 Bd6 20.Bd6 Rd6=) 19...Bf6 (19...Bd6 20.f4 gf3 21.Nf3=) 20.f4 (20.Ng6 Bb2 21.Qb2 Rf6=) 20...gf3 21.Nf3 Bb2 22.Qb2 Na4 23.cd5 Qd6 (23...Qe7 24.Qa1 Nc5 25.Qa7 Rd6 26.Rc5 bc5 27.de6 Rdd8= (27...Re6? 28.Bc4+–)) 24.Qd2 (24.Qd4!? Nc5 25.de6=) 24...Nc5 (24...Bd5 25.Qd4 Bf3 26.Qd6 Rd6 27.Bf3–/+) 25.Bd1 (25.Qb2 Qd5 26.Rc4 Qd6+=) 25...Bd5 26.Ne1 Qe7 27.Qf2 Ne4 28.Qb2 Rc8 29.Rc8 Rc8–+ 30.Qe5 Qg5 31.Qf4 Qf6 32.Nf3 Nc3 33.Nd4 Bc4 34.Re1 Nb5 35.Nf3 Nc3 36.Ne5 Bd5 37.Nd7 Qe7 38.Ne5 Nd1 39.Rd1 0–1. Berger,Gerhard – Sarach,Michael, 10th Open, Bad Zwesten GER, 2006.

8.Nc3 0–0 9.d4 A) 9...cd4 10.Qd4 Bc5 11.Qh4 a6 12.Rd1 Qe7 13.Bd3 (13.Nb1 ab5 14.cd5=) 13...d4 14.Na4 Ba3+=; B) 9...Nbd7 10.cd5 Nd5 11.Bd3 (11.Rc1 Nc3 12.Bc3 a6 13.a4 Qc7 14.Bd3 Rfc8=) 11...c4 12.Be2 a6 13.ba6 Ba6 14.0–0=; C) 9...a6= 10.dc5 C1) 10...bc5 C11) 11.Bd3 ab5 (11...dc4 12.Bc4 ab5 13.Nb5 Qa5 14.Bc3+=) 12.Nb5 dc4 13.Bc4 Qa5 14.Bc3 Qa4+=; C12) 11.Be2 ab5 12.Nb5 dc4 13.0–0 Bd5 14.Qc2=; C2) 10...Bc5 11.cd5 (11.Bd3 dc4 12.Bc4 Qc7 13.Qe2 Rc8 14.Bd3+=) 11...Nd5 12.Qc2 Qe7 (12...ab5 13.Bb5 Nf6 14.Qe2 Na6=) 13.Bd3 f5 14.Nd5=.

8.Nc3 0–0 9.cd5 ed5+= 10.d4 (10.Bd3 a6 (10...d4 11.ed4 cd4 12.Na4 a6 13.ba6 Na6 14.0–0 Nb8+=; 10...Re8 11.0–0 a6 12.Qc2 d4 13.Ne4 ab5 14.Nf6 Bf6+=) 11.0–0 Re8 12.Qc2 d4 13.Ne4 ab5 14.Neg5 Bf3+=) 10...Nbd7 (10...c4 11.Be2+= a6 12.ba6 Na6 13.0–0 Bd6 14.Nb5 Nc7=) 11.Be2 (11.dc5 bc5 12.Be2 Bd6= 13.0–0 Rc8 14.Rc1 Ne5=) 11...Qc7 (11...c4 12.0–0= a6 13.ba6 Ra6 14.Qc2 Qa8=) 12.0–0 (12.dc5 bc5 13.0–0 Bd6 14.Rc1 Rfe8=) 12...Rac8 (12...c4 13.a4= Rfc8 14.Qc2 Bd6=) 13.Rc1 Rfd8 (13...Rfe8 14.Bd3 (14.Qa4= c4=) 14...c4=; 13...c4 14.Qc2 a6=) 14.Na4 (14.Bd3 c4 15.Bf5 Bd6=; 14.Qa4 Qb8=) 14...Qb8 (14...c4 15.Nc3=) 15.Ne5 (15.dc5 bc5 16.Qd3 Bd6=) 15...cd4 (15...c4!?=) 16.Nd7+= Rd7 17.Bd4 (17.Rc8 Qc8 18.Qd4 Rc7+=) 17...Rc1= (worse is 17...Ba3 18.Ra1 Be7 19.Bg4+/–) 18.Qc1 Qd6 19.Bb2 (19.Nc3 Ne4+=) 19...Rc7 (19...Ne4 20.Bd3=) 20.Qa1+= Qe6 21.Rc1 Qc8 (21...Rc1 22.Qc1 Bd6 23.Bd4=) 22.Rc7+= Qc7 23.Qc1 (23.Bd3 Ng4 24.g3 Qd6+=) 23...Qc1= 24.Bc1 Ne4 25.f3 Nc5 26.Nc5 (26.Nc3 Nb3 27.Bb2 Bc5=) 26...bc5+= 27.a4 (27.Bb2 Bd6=) 27...c4= 28.e4 (28.Bb2 Bc5 29.Kf2 f5=) 28...Bc5 29.Kf1 Kf8 (29...de4 30.fe4 c3 31.Bf3+=) 30.Bb2 f6 31.ed5 Bd5 32.Bd1 Ke7 33.Ke2 Kd6 (33...h5 34.Bc2=) 34.Kd2 (34.Bc2 h6=) 34...Bb4+= 35.Bc3 Kc5 36.Bc2 h6 (36...h5 37.h4+=) 37.Bg6= Be6 38.Be4 (38.h4 f5=) 38...f5+= 39.Bc6 g5 40.a5? (better is 40.g3+=) 40...Bc3–+ 41.Kc3 a6! 42.Bb7 (42.ba6 Kc6 Deflection) 42...ab5 (42...Kb5!? 43.g3–+) 43.a6 b4 44.Kd2 (44.Kc2 Kb6–+) 44...Kb6 (44...c3 45.Kc2 Kd4–+) 45.Ke3 (45.g3 c3 46.Kc2 Bc4–+) 45...c3 (better is 45...b3 46.Kd2 b2 47.Kc2–+) 46.Kd3 Bc4!! 47.Kc2 (47.Kc4 c2) 47...Ba6 48.Bd5 Kc5 49.Be6 f4 50.Bf5 (50.Kb3 Bf1 51.g3 Be2–+) 50...Bc4 51.g3 Kd4 (51...Kd4 52.Kc1 b3 53.gf4 Bd3 54.Bd3 Kd3–+) 0–1. Bender,Wolfgang – Karnaoughk,Valerie, Westpfalz op, 1998.

8.d4 0–0 9.Nbd2 Nbd7 10.Be2 Ne4 11.0–0 cd4 12.Ne4 de4 13.Nd4 Nc5 14.Qc2 Bf6 15.Rfd1 Qc7 16.Rac1 Rfd8 17.Bf1 Rd7 18.a4 (18.Nb3!? Bb2 19.Rd7 Nd7 20.Qb2=) 18...Rad8+= 19.Bc3 e5 20.Nf5 Nd3 21.Bd3 ed3 22.Qb3 d2 23.Ra1 Rd3 24.Qb4 (24.Ra2 Bc8 25.Ng3 Bh4=) 24...Qd7 (24...Bc8!? 25.Ng3 Rc3 26.Qc3 e4–/+) 25.Ng3+= Rc3 26.Qc3 e4 27.Qa3 Ba1 28.Qa1 Qd3 29.Nf5 (29.Qa2!?+=) 29...f6= 30.Nd4 Rc8 31.h3 Rc4 32.a5 Bd5 33.ab6 ab6 34.Kh2 Rc5 35.Qb2 Bc4 (35...h6!?=) 36.Rd2+= Qf1 37.Rc2 (37.Qa3 Kf7 38.Qa8+/–) 37...Rg5= 38.f4 ef3 39.Nf3 Rc5? (39...Rg2 40.Rg2 Qf3 41.Qf2 Qf2 42.Rf2+=) 40.Qd4?? (40.Nd2 Rb5 A) 41.Nc4?? Rb2 42.Nb2 Qf5–+; B) 41.Rc4?! Qg2 (41...Rb2? 42.Nf1 b5 43.Rc8 Kf7 44.Rc7 Kg6 45.Ng3+–) 42.Kg2 Rb2+/–; C) 41.Qd4+–) 40...Qd3 (40...Bb5!? 41.Rc5 bc5 42.Qd5 Kf8 43.Qc5 Kg8 44.Qd5 Kf8+/–) 41.Qd3 Bd3 42.Rc5 bc5 43.b6 Ba6 44.Nd2 Kf7 45.Ne4 c4 46.Nc5 Bc8 47.b7 Bb7 48.Nb7 c3 49.Na5 c2 50.Nb3+/– Ke6? 51.Nd4+– Ke5 52.Nc2 Ke4 53.Nd4 g6 54.Kg3 Ke3 55.Ne6 h5 56.h4 Ke4 57.Ng7 Ke3 58.Kh3 Kf4 59.Ne6 Kf5 60.Nd4 Ke4 61.Nf3 Kf4 62.Nd4 Ke4 63.Ne6 Kf5 64.Nc5 Kf4 65.g3 Kf3? 66.Nd7 Ke4 67.Nf6 Kf5 68.Nh7 Ke4 69.Kg2 Ke5 70.Kf3 Kf5 71.Ng5 Ke5 72.g4 hg4 73.Kg4 Kf6 74.Ne4 Kf7 75.Kg5 Kg7 76.Nd6 Kh7 77.Nc4 Kg7 78.Ne5 Kh7 79.Ng6 Kg7 80.h5 Kh7 81.h6 Kg8 82.Ne5 Kh7 83.Nd7 Kg8 84.Kg6 Kh8 85.Ne5 Kg8 86.h7 1–0. Enxtuul,A (1975) – Tsai,C (2150), 1st WMSG Rapid Team w, Beijing CHN, 2008.

8.d4 Nbd7 9.Bd3 0–0 10.Nbd2 Qc7 11.Rc1 Rfe8 12.Qc2 h6 13.e4 (better is 13.0–0!?=) 13...de4+= 14.Ne4 Ne4 15.Be4 Rad8 16.Ne5 (better is 16.Bb7 Qb7 17.0–0=) 16...cd4 17.Nc6 Bc6 18.Bc6 Rb8 (better is 18...Rf8!? 19.Bd4 Ba3–/+) 19.Bd4+= Ba3 20.Rb1 Bc5 21.Bc5 Nc5 (21...bc5 22.Bd7 Qd7+=) 22.0–0?? (better is 22.Be8 Re8 23.0–0+=) 22...Nb7?? (better is 22...Red8–/+) 23.Rfc1 ˝–˝. Lenda,Lukasz (1900) – Paterek,Diana, 2009.

8.cd5 ed5 9.Be2 0–0 =.

8.Be2 0–0 9.0–0 a6 10.ba6 Na6 11.d3 +=.

8.Be2 0–0 9.0–0 dc4 10.Bc4 Nbd7 11.d4 cd4 12.Nd4 Rc8 13.Qb3 Nc5 14.Qa2 Na4 15.Rc1 Nb2 16.Qb2 Nd5 (16...e5 17.Nc6 Bc6 18.bc6 Rc6 19.Nd2–/+) 17.Bd5 (17.Nd2 Bf6+=) 17...Bd5 (better is 17...Qd5!? 18.f3 Qg5–/+) 18.Nc3 Bb7 19.a4 Bf6 20.Qb4 e5 21.Nb3?? (21.Nf5 Qd2 22.Ne7 Be7 23.Qe7 Bg2 24.Kg2 Rc3=) 21...e4?? (better is 21...Be7 22.Qg4 Qd3–+) 22.Rab1? (better is 22.Nd4!?=) 22...Qd3–/+ 23.Na2? (better is 23.Nd4!? Rc4 24.Qb2 Bd4 25.ed4 Qd4 26.Nd1–/+) 23...Rc1–+ 24.Rc1 Bd5 25.Nd2 Ba2 26.Ne4 Qd8 27.h3 Be7 28.Qb2 Be6 29.Qc3 f5 30.Nd2 Bf6 31.Qc2 g6 32.Rd1 Qc8 33.Qb1 Rd8 34.Nf3 Rd1 35.Qd1 Qd7 36.Qc2 Kf7 37.Ne1 Bd5 38.Qd3 Qe6 39.Nc2 Bc4 40.Qd2 Bb3 41.Nd4 Bd4 42.Qd4 h5 43.a5 Bc4 44.ab6?! ab6 45.f4 Bb5 46.Kf2 Bd7 47.Qh8 b5 48.Qh7 Kf8 49.Qh8 Ke7 50.Qg7 Kd8 51.Qf8 Kc7 52.Qc5 Kb7 53.Qd4 Bc6 54.Qg7 Kb6 55.Qd4 Ka5 56.Qa1 Kb4 57.Qb2 Qb3 58.Qd2 Qc3 59.Qd6 Kb3 Black intends b4 60.Qe6 Kb2 61.Kg3 b4 62.Qg6 Qe3 63.Kh4 Be4 64.Kh5 b3 65.g3 Kc1 0–1. retiponziani – kianas, ChessWorld.net, 2012.

8.Be2 0–0 9.0–0 Nbd7 10.d4 (10.cd5 Nd5 11.Nc3 Nc3 12.dc3 Qc7=) 10...cd4 (10...a6 11.Nc3=) 11.Nd4 (11.cd5 Nd5 12.Bd4 Rc8=) 11...Nc5 (11...dc4 12.Bc4 Rc8 13.Qe2=) 12.Nd2 (12.cd5 Nd5 13.Nc3 Nc3 14.Bc3 Qc7=) 12...Rc8 (12...Qc7 13.cd5 Bd5 14.Bf3=) 13.f3 (13.cd5 Nd5 14.Rc1 Bf6=) 13...Qd7 (13...Qc7 14.Rc1+=) 14.cd5= Nd5 15.Nc4 Bf6 (15...Bg5 16.f4 Bf6 17.f5–/+) 16.e4= Nf4 17.e5 Be7 18.Qd2 (18.Rc1 Rfd8+=) 18...Ne2 19.Qe2 Na4 20.Rac1 Bc5 (20...Nb2 21.Qb2 Qd5 22.Nc6 Bc6 23.bc6–+) 21.Nd6 Nb2 22.Qb2 f6 (22...Bd6 23.ed6 Qd6 24.Qb4–/+) 23.f4+= fe5 24.fe5 Rf1 (24...Bd6 25.Rc8 Qc8 26.ed6 Rf1 27.Kf1 Qf8 28.Kg1 Qd6 29.h3–/+) 25.Rf1 Bd6 (25...Rd8 26.Qf2+=) 26.ed6 Qd6 27.Qf2 Qe7 (27...Bd5 28.Qe3–/+) 28.Qe3+= Attacks the isolani on e6 28...Bd5 29.Rd1 (29.Rf2 Qc5 30.h3 Bc4–/+) 29...Rf8 (29...Qf6 30.Ne2–/+) 30.Nc6 Qf6 (30...Qf7 31.Ne5 Qe8 32.a4–/+) 31.Ne5 +=. b4_player – opponent, gamecolony.com, 2007.

8.Be2 0–0 9.d4 dc4 10.Bc4 a6 =.

8.Be2 Nbd7 9.0–0 0–0 10.d4 dc4 11.Bc4 Rc8 12.Nbd2 Ne4 (12...cd4 13.Nd4 Nc5 14.Rc1=) 13.Rc1 (13.Ne4 Be4 14.Rc1 Bf6+=) 13...Ndf6 (13...Nd2 14.Nd2 cd4 15.ed4+=) 14.Qb3 (14.Qa4 cd4 15.Ne4 Ne4 16.Nd4 Nc5=) 14...Nd2= 15.Nd2 Ne4 (better is 15...cd4!? 16.Bd4 Qd6=) 16.Ne4+/– Be4 17.Be6! Rc7 (17...fe6 18.Qe6 Double attack) 18.Rfd1 (18.f3 Bg6 19.Bd5+/–) 18...Bg2 (better is 18...Qd6!? 19.Bg4 c4+/–) 19.Kg2+– fe6 20.Qe6 Kh8 21.dc5 Qe8?! (21...Qa8 22.c6 Bf6 23.Bf6 Rf6+–) 22.c6 (better is 22.Bg7 Kg7 23.Qe5 Kg8 24.Qc7 Bc5 25.Qc6 (25.Qa7 Rf2 26.Kg1 Qe3 27.Qa8 Rf8 28.Kg2 Ra8 29.Rc5 Qe2 30.Kg3 Ra3 31.Rc3 Rc3 32.Kh4 Rc4 33.Rd4 Rd4 34.Kg3 Rg4 35.Kh3 Qf3) 25...Qc6 26.bc6+–) 22...Qh5?? (22...Rf2! 23.Kg1 Rb2–+) 23.Qe5?? (better is 23.Qe4+–) 23...Qf3–+ 24.Kg1 Qf2 25.Kh1 Qf3 26.Kg1 Bh4?? (better is 26...Rf6 27.Qg5 Rg6 28.Qg6 Qe3 29.Kh1 hg6–+) 27.Rf1 Bf2 28.Rf2 Qf2 29.Kh1 Qf3 30.Kg1 Rcf7 31.Qg3 Qe2 32.Qg2 Qe3 33.Kh1 Qc1 (better is 33...Qb3!?–+) 34.Bc1–/+ Rf1 35.Qf1?? (better is 35.Qg1–/+) 35...Rf1–+ 36.Kg2 Rc1 37.Kf2 (37.Kf3 a6! 38.a4 ab5 39.ab5 Rc5–+) 37...Kg8 (better is 37...a6 38.a4–+) 38.Ke3 Kf7 0–1. Valente,Hector Manuel (1805) – Baudel,Simon (1790), Club Argentino de Ajedrez – Torneo Abie, 2013.

7.d3 Nbd7

8.Nbd2 a6 9.ba6 Ra6 A) 10.e4 Be7 (10...d4 11.c3 dc3 12.Bc3 Ra7 13.Be2 Be7=; 10...Ra7 11.e5 Nh5 12.d4 Nf4 13.dc5 Bc5+=) 11.e5 Ng4 12.d4 c4 13.Bc1 Bb4+=; B) 10.c4 Bd6 11.d4 Ra7 12.dc5 Bc5 13.Bd3 (13.Nb3 0–0+=) 13...Qa8 14.cd5=.

8.Nbd2 Bd6

9.Rb1 A) 9...0–0 10.Be2 e5 11.Nh4 Re8 12.Nf5 Bb8 13.0–0 a6 14.ba6=; B) 9...Qc7 10.Be2 (10.c4 0–0 11.Be2 a6 12.ba6 Ra6 13.d4 Raa8 14.dc5+=) 10...0–0 11.c4 a6 12.ba6 Ra6 13.d4 Raa8 14.dc5+=; C) 9...Qe7 10.Be2 (10.c4 0–0 11.Be2 a6 12.ba6 Ra6 13.0–0 Rfa8 14.Qc2+=) 10...0–0 11.c4 a6 12.ba6 Ra6 13.0–0 Rfa8 14.Qc2+=; D) 9...e5 10.Be2 0–0 11.Nh4 Ne8 12.Nf5 Qg5 13.Bg4 Ndf6 14.Bh3+=; E) 9...a6 10.ba6 Ra6 11.Be2 0–0 12.c4 d4 13.ed4 cd4 14.Bd4+=.

9.c4 0–0 10.Be2 a6 11.ba6 Ra6 12.0–0 dc4 13.Nc4 Bc7 14.Qb3 +=.

9.c4 0–0 10.Be2 Qc7 (10...a6 11.ba6 Ra6 12.0–0+=) 11.0–0 Ng4 (11...a6 12.ba6 Ra6 13.h3+=) 12.h3= Nge5 (12...Nh2 13.Re1+=) 13.cd5 (13.Ne5 Be5 14.Qc2 Bb2 15.Qb2 a6=) 13...ed5 (13...Nf3 14.Bf3 ed5 15.Qb3=) 14.Ne5 (14.Nh4 a6 15.Nf5 Nf6+=) 14...Ne5 (14...Be5 15.Be5 Qe5 16.d4=) 15.Rc1 (15.d4 Nd7=) 15...Qe7 (15...Ng6 16.Qb3+=) 16.Qb3 (16.d4 cd4 17.Bd4 Ba3=) 16...Kh8 (16...h6 17.Rfe1=) 17.Qc3 (17.Rfe1 f6=) 17...f5 18.d4 Ng6 19.dc5 bc5 20.Nb3? (better is 20.Rfe1+=) 20...d4!–+ 21.ed4 Nf4 (21...Qe2?! 22.Rfe1 Qb5 23.dc5–/+) 22.Rfe1 Qg5 (worse is 22...Ne2 23.Re2 Qe2 24.dc5=) 23.Bf3 Ng2 24.Bb7 0–1. Karanda,Konstantin (2195) – Brozhik,Vasilij (2140), Kiev Independence Cup 4th, 2004.

9.c4 Qe7 10.Be2 (10.Rb1 0–0 11.Be2 a6 12.ba6 Ra6 13.0–0 Rfa8 14.Qc2+=; 10.cd5 ed5 11.Be2 a6 12.Qa4 0–0 13.Rb1 d4 14.Nc4–/+) 10...0–0 11.Qc2 (11.0–0 a6+= 12.ba6 Ra6 13.Rb1 Rfa8 14.Qc2+=) 11...a6 12.e4 (12.ba6 Ra6 13.0–0 Rfa8+= 14.d4+=) 12...de4 (12...d4 13.ba6 Ra6 14.Rb1+=) 13.de4= e5 (13...Bf4 14.Rd1+=) 14.a4 (14.0–0 Nh5=) 14...g6 (14...Nh5 15.g3+=) 15.0–0= Nh5 16.g3 (16.Rfd1 Nf4 17.Nb1 f5=) 16…Ng7. Schiffler – Burkhardt, Riesa, 1952.

9.Be2 A) 9...0–0 10.c4 (10.0–0 a6 11.ba6 Ra6 12.c4 Qc7 13.d4 Raa8 14.cd5+=) 10...a6 11.ba6 Ra6 12.0–0 dc4 13.Nc4 Bc7 14.Qb3+=; B) 9...a6 10.ba6 Ra6 11.c4 0–0 12.0–0 dc4 13.Nc4 Bc7 14.Qb3+=.

9.g3 0–0 10.a4 Qe7 +=.

7.Be2 Nbd7

8.0–0 Qc7 9.d3 (9.d4 Bd6= 10.dc5 bc5 11.a4 e5 12.Nh4 e4 13.h3+=) 9...Bd6+= 10.Nbd2 (10.d4 cd4 11.Qd4 Qc2 12.Bd3 Qc7 13.Rc1+=) 10...Rc8 (10...0–0 11.c4+= a6 12.ba6 Ra6 13.cd5+=) 11.c4= dc4 (11...0–0 12.cd5 ed5 13.Qb3= (13.Qa4=)) 12.Nc4+= 0–0 13.Nd6 Qd6 14.Nd2 Ne5 (14...e5 15.Nc4 Qe6 16.f4=) 15.Ne4 (15.Nc4 Nc4 16.dc4 Qe7+=) 15...Ne4 (15...Be4 16.de4 Qc7 17.f4=) 16.de4+= Qd1 17.Rfd1 (worse is 17.Bd1 Nd3 18.Bc3 Be4–+; 17.Rad1?! Ng6+=) 17...Ng6 18.f3 Rcd8 (18...Rfd8 19.Bc3=) 19.Bc4+= Rfe8 20.Kf2 Kh8 (20...e5 21.Rac1+=) 21.Ke2 (21.Rac1 Kg8+/–) 21...Nh4 (21...f5 22.Be6 fe4 23.Bf7+=) 22.g3+/– Ng6 23.h4 (23.Rac1+/–) 23...f6 (better is 23...h5!?+/–) 24.Be6+– Rd1 (24...a6 25.a4+–) 25.Rd1 h5?? (25...Nf8 26.Bd5 Re7+–) 26.Bf7 (26.Bf7 Rf8 27.Bg6+–) 1–0. marre (2005) – PVI (1755), gameColony.com, 2003.

8.Nc3 Bd6 9.d4 0–0 10.0–0 Qc7 11.dc5 Nc5 12.Qd4 e5 13.Qh4 +=.

8.0–0 Bd6

9.Nc3 0–0 10.Re1 Qc7 11.d4 cd4 12.Qd4 Ne5 13.Qh4 –/+.

9.c4 0–0 10.Nc3 dc4 11.Bc4 Qc7 (11...Qb8 12.h3 Rd8 13.d3 Qc7 14.Re1 h6 15.Rb1 Bf3=) 12.g3 Rfd8 13.Qe2 Bf3 14.Qf3 Ne5 15.Qe2 Qb7 +=.

9.c4 0–0 10.cd5 ed5 (10...Nd5 11.Qa4 Nc7 12.d4 a6 13.dc5 Nc5 14.Qg4 f6 15.ba6 Ba6=) A) 11.Nc3 Re8 (11...a6 12.ba6 Ba6 13.Nb5 Be7 14.a4 Re8 15.Qc2 Ne4=) 12.Rc1 a6 13.ba6 Ba6 14.Nb5 Qe7 15.Nd6 Be2+=; B) 11.Qa4 a6 (11...Re8 12.Nc3 a6 13.ba6 c4 14.Nb5 Nc5 15.Qc2 Ba6=) 12.ba6 c4 13.Qc2 Ba6 14.Nc3 Nc5 15.Nd4 Re8=; C) 11.d3 Re8 (11...Qe7 12.Nc3 Rfe8 13.Re1 a6 14.ba6 Ba6 15.Qb3 Qe6=) 12.Nc3 Qe7 13.d4 c4 14.Nh4 Qe6 15.Qc2 Bc8+=; D) 11.Nh4 Qc7 12.f4 a6 13.Nf5 d4 14.ed4 Bf4 15.g3 Bd6=.

9.c4 0–0 10.h3 Qe7 (10...dc4 11.Bc4 a6 12.ba6 (12.d4+= ab5 13.Bb5 Qe7 14.Nbd2 cd4 15.Nc4 Bf3+=) 12...Ba6 13.Ba6 Ra6 14.Qc2 Qe7 15.e4 e5+=) 11.d3 (11.Nc3 a6+= 12.ba6 Ba6 13.d3 Bb7 14.Nb5 Rfd8 15.cd5 Nd5+=; 11.cd5 Nd5 (11...ed5 12.Nc3 Rfe8 13.d4 c4 14.Nh4 Qe6 15.Qc2 a6+=) 12.Qc2 e5 13.Nc3 Nc3 14.Qc3 Rfd8 15.Rfd1 a6+=) 11...Rad8 (11...dc4 12.dc4 Rfd8 13.Qb3+= e5 14.Rd1 e4 15.Nfd2 Be5=; 11...a6 12.Nc3 dc4 13.dc4 Rfd8 14.Qb3 e5 15.Rfd1 e4+=; 11...Rfd8 12.cd5 Nd5 13.Nbd2 a6 14.ba6 Ra6 15.Ne4 Bc7+=) 12.Qc2 (12.Qa4 dc4 13.dc4 Ra8 (13...Bb8= 14.Rd1 e5 15.Nc3 e4=) 14.Rd1 a6 15.Nc3 e5=; 12.Nbd2 a6 13.ba6 Ba6 14.Qb3 Bb7 15.a4 Bc6=) 12...Bb8 (12...dc4 13.dc4 e5 14.Rd1= e4 15.Nfd2 Qe6=) 13.Nbd2 (13.Rd1 Rfe8 14.Nc3 Ne5 15.cd5 ed5=) 13...Qd6 (13...a6 14.ba6 Ba6 15.Rfb1= dc4=; 13...Rfe8 14.a4 e5 15.e4 de4=) 14.Rfd1 (14.Rfc1 a6= (14...Rfe8 15.Rab1 e5=) 15.ba6 Ba6=; 14.cd5 ed5 15.a4 Qe6=) 14...e5 (14...Rfe8 15.Rdc1= e5=) 15.cd5 Nd5 16.Nc4 Qg6 17.Nh4 (17.Be5? Be5 18.Nfe5 Ne5 19.Ne5 Qg2 20.Kg2 Ne3 21.Kg3 Nc2–+; worse is 17.Nfe5 Ne5 18.Ne5 Be5–+) 17...Qh6 18.Nf3 Rfe8 19.Nh2 Nc7 (19...a6 20.ba6 Ba6 21.a4=) 20.Qb3 Ne6 (20...Bd5 21.Bf3=) 21.Bf3 Bf3 22.Nf3 Ng5 23.Ng5 Qg5 24.a4 Re6 25.e4 Rh6?? (better is 25...Rg6 26.Ne3 Bc7=) 26.Bc1+– Qg6 (26...Qf6 27.Bh6 Qh6 28.a5+–) 27.Bh6 Qh6 28.Ne3 Nf6 (28...Qg5 29.a5+–) 29.a5 Bc7 30.ab6 Bb6 31.Nc4 Nh5 32.Ne5 Qf6 33.Ng4 Qg5 34.Qc3 Nf4 35.Qe5 Ne2 36.Kf1 Qe5 37.Ne5 Nc3 38.Rdc1 Nb5 39.Nc4 Nd4 40.Rcb1 Nc2 41.Ra2 Nb4 42.Rd2 Rd4 43.Ke2 g6 44.Ne3 Rd8 45.f4 a5 46.Ra1 h5 47.Ra3 h4 48.Ng4 Kg7 49.Rd1 Re8 50.Rc1+– f5 51.Ne5 Re6 52.ef5 gf5 53.Kf3 Re8 54.Nd7 Ba7 55.Nc5 Nc6 56.Ra4 Bb6 57.d4 Nb4 58.Ra3 Nd5 59.Rb1 Kf7 60.Rb5 Rg8 61.Rab3 a4 62.Na4 Rg3 63.Ke2 Nf4 64.Kd2 Bd4?? 65.Rg3 hg3 66.Rf5 (66.Rf5 Ke6 67.Rf4+–) 1–0. Ehrlich,Hans_Georg (1905) – Lueders,Gerhard (2170), 04 sen. DSB–Senioren Derby, 2005.

9.c4= dc4 10.Bc4 Ng4 11.h3 Nge5 12.Be2 0–0 13.d4 =.

9.d3 a6 10.a4 0–0 =.

9.d4 0–0 10.dc5 Nc5 11.Bd4 a6 12.Nc3 Nce4 13.Na4 +=.

6.Nf3 Bd6

7.c4 0–0 8.d4 a6 9.dc5 bc5 10.Nc3 Nbd7 (10...Qa5!?=) 11.cd5+= Nb6 12.de6 Be6 13.Ng5 Qe7 14.Ne6 Qe6 15.Qf3 (15.ba6 Be5+=) 15...Rfd8 (15...Be5 16.Qe2=) 16.Qc6 (16.ba6!? Be5 17.Rc1+=) 16...Nc4= 17.Bc4 Qc4 18.Rc1 Qb3 19.Rb1 Be5 20.Qc5 Nd5 21.0–0 Rac8 22.Qc8 Rc8 23.Ba1 Qc4 24.Nd5 Qd5 25.Rfd1 Bh2 (25...Qe4 26.Be5 Qe5 27.b6–+) 26.Kh2 Qh5 27.Kg1 ab5 28.Rd7 h6 29.Rb7 Rc5 30.Bd4 Rg5 31.g3 Qe2 32.Rb8 Kh7 33.Rc1?? (better is 33.Rc8–/+) 33...Rh5 34.Kg2 (34.Rb5 Rb5 35.a4–+) 34...Rf5 35.Rh8 Kh8 36.Rc8 Kh7 37.Rh8 Kh8 38.e4 (38.Bc5 Rf2 39.Kh3 Rh2) 38...Qe4 39.Kf1 Rh5 40.f3 (40.f4 Rh1 41.Bg1 Qe3 42.Kg2 Rg1 43.Kh3 Qg3) 40...Qd4 41.Kg2 Qd2 42.Kg1 Rh2 43.f4 Qg2 0–1. Pierred (2310) – Schwamkopf,Shredder 9 (2315), Friendly Game, 3m + 0s, 2005.

7.c4 0–0 8.Be2 Bb7 9.0–0 Nbd7 10.d4 Ne4 11.cd5 Bd5 12.dc5 (12.Nbd2 Nd2 13.Nd2 a6=) 12...Ndc5+= White creates threats along the open d–file (worse is 12...Nec5 13.Nc3 Nf6 14.Nd5 Nd5 15.Bc4+=) 13.Nc3 (better is 13.Qd4 f6 14.Nbd2+=) 13...Nf6 (better is 13...Nc3!? 14.Bc3 Qc7+=) 14.Nd5+= Nd5 15.Qd4 Do you see the mate threat? 15...Nf6 (15...Qf6 16.Qf6 Nf6 17.Bf6 gf6 18.Rfd1+/–) 16.Rad1 Nce4 (16...Ne8 17.e4+/–) 17.Ne5 (17.Bd3 Nc5+–) 17...Be5 (17...Qc7 18.Rc1 Nc5 19.Ng4+=) 18.Qe5 Qb8 Black launches an attack 19.Bf3 (19.Qd4 Qc7+/–) 19...Qe5+= 20.Be5 Rad8 21.g4?? (better is 21.Rd8 Rd8 22.Rc1+=) 21...Nd2–/+ 22.Bc6? (better is 22.Rd2!? Rd2 23.Rc1–/+) 22...Nf1–+ 23.Rf1 Ng4 24.Bc3 (24.Bd4 e5 25.Ba1 f6–+) 24...Rd3 25.Bb4 Rc8 26.h3 Nf6 27.Ra1 Nd5 28.Be1 f5?? 29.Bd7–/+ Rc5 30.Be6 Kf8 31.Bf5 Rb3 32.e4 Nc3 33.a4 g6 34.Be6 Rb2 35.f3? Nb1 36.Ra2 Ra2 37.Ba2 Rc1 38.Kf1 Nc3 39.Be6 Na4–+ 40.Ke2 Nc3 41.Kd2 Rd1 42.Kc3 Re1 43.Kd4 Ke7 44.Bc4 Rh1 45.Ke5 Rh3 46.f4 Rc3 47.Bf1 h5 48.f5 gf5 49.Kf5 Rf3 50.Kg5 Rf1 51.Kh5 Rg1 52.Kh4 Ke6 53.Kh3 Ke5 54.Kh2 Rg8 55.Kh3 Ke4 56.Kh4 Kf5 57.Kh3 Kf4 58.Kh2 Kf3 (58...Kf3 59.Kh1 Kf2 60.Kh2 Rh8#) 0–1. Mogstad,Ola P – Svensen,Tarjei Joten, Rose Cup Molde, 2000.

7.c4 Bb7 8.d4 Nbd7 9.Nbd2 Qc7 10.h3 0–0 11.Be2 Rfc8 12.Rc1 Qd8 13.0–0 Qe7 14.a4 Rc7 15.Ne5 Rac8 16.Bd3 Nf8 17.Ng4 (17.dc5 Bc5 18.Qe2 Ba3=) 17...Ng4+= 18.Qg4 Ng6 19.f4 (19.cd5 f5 20.Qh5 cd4 21.Rc7 Bc7=) 19...f5 (19...cd4 20.Bd4 e5 21.fe5 Ne5 22.Be5 Qe5 23.Qf4–+) 20.Qg3 (20.Qe2 cd4 21.Bd4 Bc5+=) 20...Qh4 (better is 20...cd4!? 21.Bd4 Bb4–+) 21.Qh4= Nh4 22.g3 Ng6 23.Kf2 (23.cd5 Bd5 24.e4=) 23...Re8 (23...cd4!? 24.Bd4 Nf8=) 24.Rfe1 (24.cd5 cd4 25.Bd4 Bd5+=) 24...Kf7 (24...cd4 25.ed4 Bb4 26.Bc3=) 25.Re2 (25.cd5 Bd5 26.e4 fe4 27.Ne4 Be7 28.dc5 bc5+/–) 25...Ree7 (better is 25...cd4!? 26.ed4 Rec8=) 26.cd5+/– Bd5 27.e4 fe4 28.Be4 cd4 29.Bd5 Rc1 30.Be6 Re6 31.Bc1 Re2 32.Ke2 Ke6 33.Kd3 Bc5 (33...Kd5 34.Nf3+/–) 34.Ke4 Ne7 35.Nb3 (better is 35.g4+/–) 35...Nf5= 36.g4 (worse is 36.Nc5 bc5 37.g4 Nd6 38.Kf3 g6–/+) 36...Nd6 37.Kd3 Kd5 38.Bb2 Increasing the pressure on the isolated pawn on d4 (38.Nc5? bc5 39.Kc2 Ne4–+) 38...Nc4 39.Ba1 g6 (better is 39...g5!? 40.Nd4 Bd4 41.Bd4 gf4=) 40.Nd4+/– (40.Bd4?! Bd4 41.Nd4 Nb2 42.Ke3 Nc4 43.Kd3 Nb2 44.Ke3 Nc4 45.Kd3=) 40...Bd4 41.Bd4 Nd6 42.h4 Nc4 43.f5 (better is 43.Bc3+/–) 43...Ne5?? (better is 43...gf5 44.gf5 Nd6+=) 44.Be5+– Ke5 (44...gf5 45.Bb8 fg4 46.Ba7 Kc5+–) 45.fg6 hg6 46.Ke3 Ke6 47.Ke4 Ke7 48.Ke5 Kf7 49.h5 g5 50.Kf5 Ke7 51.Kg5 Kd6 52.h6 Kc5 53.h7 Kb4 54.h8Q Ka4 55.Qb2 Ka5 56.Kf5 a6 57.ba6 Ka6 58.Qb4 1–0. Rolka,Anna – Kowacz,Agnieszka, Mistrzostwa Miedzywojewodzkie Juniorek Poland, 2012.

7.c4 Bb7 8.d4 Qe7 (8...0–0 9.cd5 ed5 10.Nc3+=) 9.Nbd2 (9.dc5 bc5 10.Nbd2 Nbd7=) 9...0–0 (9...Nbd7 10.Bd3+=) 10.Be2 (10.dc5 Bc5 11.cd5 Bd5=) 10...Nbd7 11.0–0 Rac8 12.Re1 Ne4 13.Rc1 (13.cd5 ed5 14.Rc1 f5 15.dc5 bc5+=) 13...f5 14.g3 g5 (14...Ndf6 15.dc5 Rc5 16.Ne4 fe4 17.Nd2+=) 15.Bd3 (15.cd5 Bd5 16.Bc4 Bc4 17.Rc4 Qf7+=) 15...Bb8 (15...g4 16.Nh4 Ng5 17.Kf1–/+) 16.Nb3 (16.cd5 ed5 17.dc5 bc5=) 16...Ndf6 (16...g4!? 17.Nh4 cd4 18.ed4 Bd6+=) 17.dc5= bc5 18.Be4 (18.Na5!?+=) 18...Ne4+= 19.Na5 dc4 20.Nb7 Qb7 21.Rc4 Rcd8 22.Qc2 g4 23.Re4 Qe4 (23...fe4?! 24.Qc3 Qe7 25.Qh8 Kf7 26.Qh7 Ke8 27.Qg6 Qf7 28.Qf7 Rf7 29.Ng5=) 24.Qc3 e5 25.Ng5 Qd3 (better is 25...Qd5 26.e4 fe4 27.Ne4 c4–/+) 26.Qa5?? (better is 26.Ne6+=) 26...Qd6–+ 27.e4 (27.f4 h6 28.Be5 Qe7–+) 27...h6 28.ef5 hg5 29.Be5 (29.Qa4 Qf6 30.Qg4 Qf5 31.Qf5 Rf5–+) 29...Qb6 (29...Qd5 30.Qc3 Rf5 31.Bb8 Rb8 32.Qb2–+) 30.Qc3 (30.Qa4 Be5 (30...Rf5?! 31.Bc3 Qb7 32.Re3–+) 31.Re5 Rd4–+) 30...Be5 (worse is 30...Qb5 31.f6 Kh7 32.Bb8 Rb8 33.f4–+) 31.Qe5 (31.Qb3 Kg7 32.Re5 Rfe8 33.Re8 Re8–+) 31...Qd6 (31...Rfe8 32.Qe8 Re8 33.Re8 Kf7 34.Re4 Qb5 35.Re5–+) 32.Qe3 (32.Qe6 Kg7 33.f6 Rf6 34.Qg4 Qd2 35.Re7 Kg8 36.Qc4 Kf8–+) 32...Qf6 (better is 32...Rf5!? 33.Qe2 Qf6 34.a4–+) 33.Qb3 (33.Qc5 Qf5 34.Qa7–+) 33...c4! (33...c4 34.Qc4 Rf7 35.Qg4 Qf5 36.Qf5 Rf5–+) 0–1. Sturmberger,Franz (1800) – Koestler,Norbert (2140), Senioren–LM OOE, 2007.

7.c4 dc4 8.Bc4 (8.a4 Nbd7=) 8...Nbd7 9.0–0 0–0 10.d3 Bb7 11.e4 Qc7 12.g3 Rfd8 13.Nbd2 Be5 14.Qb3 Bb2 15.Qb2 Ng4 16.Rad1 Nge5 17.Ne5 Qe5 18.Qb3 Nf6 (18...Qh5 19.f4+=) 19.Nf3 Qh5 20.Kg2 e5 21.h4 h6 22.Qc3 Re8 23.a4 Bc8 24.Nh2 Ng4 (24...Bd7 25.Rde1+=) 25.Ng4= Qg4 26.Rh1 Qh5 27.f3 Be6 28.Rd2 Rad8 29.Rhd1 (29.a5 Rd6=) 29...Rd4+= 30.Qb3 Bc4 31.dc4 Red8 (31...Qg6 32.a5+=) 32.Rd3 (32.Rd4!? ed4 33.Qd3=) 32...Qg6–/+ 33.Rd4 ed4 (33...cd4!? 34.a5 Qd6–/+) 34.Qd3+= Qe6 35.Re1 Qc8 (35...a6 36.ba6 Ra8 37.Re2+=) 36.Ra1 a6 37.g4 (37.e5 Qe6 38.ba6 Ra8+=) 37...ab5 (37...Qe6 38.ba6 Ra8 39.Rf1+=) 38.ab5= Qb7 39.Ra6 Ra8 40.Qa3 Ra6 (better is 40...Re8!?=) 41.ba6+/– Qa7 42.Kf1 Kf8 43.Ke2 Ke7 44.Kd3 Kd6 45.f4 White intends g5 45...f6 46.Qa4 Ke7 47.Qb5 (47.h5 Kf8+/–) 47...Kd8 (47...Qb8 48.Kc2 Qf4 49.Qb6 Qe4 50.Kb2 Qe2 51.Ka3 Qf3 52.Ka4=) 48.g5 (better is 48.e5!? fe5 49.fe5+–) 48...fg5 49.fg5 hg5 50.hg5 Ke7 (50...Qb8!? 51.e5 Qe5 52.Qb6 Qc7=) 51.e5+= Qb8?? (51...Qa8+=) 52.Ke4 (better is 52.Qc6 Qe5 53.Qe4+–) 52...Qa8= 53.Kf4 Qf8 54.Ke4 Qa8 55.Kf4 Qf8 56.Kg3 Qb8 (56...Qf5 57.Qb6 Qg5 58.Kf2 Qe3 59.Kf1 Qf4 60.Kg1 Qg3 61.Kf1 Qd3 62.Kg1 Qe3 63.Kf1 Qc1 64.Kf2 Qe3 65.Kf1=) 57.Kf4 (57.Qc6 Qe5 58.Kg4+=) 57...Qf8= 58.Kg4 Qc8 59.Kh5 Qh3 60.Kg6 Qe6 61.Kh7?? (better is 61.Kg7 Qe5 62.Kg6 Qe4 63.Kg7 Qe5 64.Kg6 Qe4 65.Kg7 Qe5=) 61...Qf5 (61...Kf7 62.Qb6 Qb6 63.e6 Qe6 64.g6 Qg6 65.Kh8 Qh6) 62.g6 Qh5 (62...Kf8 63.Qe8 Ke8 64.Kg7 d3 65.a7 Qf3 66.Kh7 Qh1 67.Kg7 d2 68.a8Q Qa8 69.Kh7 d1Q 70.Kh6 Qah1 71.Kg7 Qdf3 72.e6 Qf8) 63.Kg7= Qe5 64.Kg8 Qe6 65.Kh7 Qh3 66.Kg7 Qe6 67.a7 Qf6?? (67...Qe5 68.Kh7 Qh5 69.Kg7 Qe5 70.Kh6 Qh8 71.Kg5 Qf6 72.Kh5 Qe5 73.Kh4 Qf6 74.Kh3 Qf3 75.Kh4 Qf6 76.Kg4 Qg6 77.Kf4 Qf6 78.Ke4 Qe6 79.Kf4 Qf6 80.Ke4 Qe6 81.Kf4 Qf6=) 68.Kh6 (better is 68.Kh7 Qh4 69.Kg8+–) 68...Qh4= 69.Kg7 Qf6 ˝–˝. Aguilar Vallcorba,Manel (1845) – Cartanya Caro,P (1860), Individual Tarragona Absolut B, 2015.

7.c4 Nbd7 8.d4 Qc7 9.Be2 Bb7 10.Nbd2 0–0 11.Rc1 Rfe8 12.cd5 ed5 13.0–0 Ne4 14.dc5 bc5 15.Nd4 Bh2 16.Kh1 Nd2 17.Qd2 Be5 18.Bf3 Qb6 19.Nf5 Qf6 (19...Qb5?! 20.Be5 Re5 21.Nd6=+) 20.Be5 Ne5 (20...Qf5?! 21.Bd6 Rac8 22.Qa5=+) 21.Ng3 Nf3 22.gf3 Qf3 23.Kg1 d4! 24.e4 (24.ed4 Qg2) 24...Re4 (25.Rc5 Re6–+; < 24...Qa3 25.Qg5 f6 26.Qg4–+; < 24...Be4 25.Ne4 Re4 26.Rfe1–+) 0–1. Del Corral Abancens,Alfonso – Renaudin,Mathieu (2155), Ardid mem op, 1998.

7.Be2 0–0 8.0–0 a6 9.Be5 Be5 +=.

6.Nf3 Nbd7

7.a4 Bb7 8.c4 (8.g3 Bd6+=) 8...Bd6 9.Be2 Qc7 10.h3 (10.cd5 ed5 11.0–0 0–0+=) 10...Ne5 11.Na3 0–0 12.0–0 dc4 (12...Rae8 13.Ne5 Be5 14.Be5 Qe5 15.Bf3+=) 13.Rc1 (13.Ne5 Be5 14.Be5 Qe5 15.Nc4 Qc7=) 13...Rad8 (13...Nd3!? 14.Nc4 Nc1 15.Qc1 Nd5–/+) 14.Nc4= Nc4 15.Rc4 (15.Bc4 Qe7=) 15...e5+= 16.Qa1 Rfe8 17.d4 ed4 18.Bd4 Qe7 19.Bb2 Bc7 20.Rd1 Rd1 21.Qd1 (21.Bd1 Qd6+=) 21...Rd8 (21...Ne4 22.Bd3–/+) 22.Qa1+= Rd5 (22...Be4 23.Rc1+=) 23.Kf1 Bc8 (23...Rd6+=) 24.Ne1 (24.Rh4 Bf5=) 24...Be5 (24...Ne4 25.Nf3 f6 26.Rc1+=) 25.Bf3 (25.Be5 Re5 26.Nd3 Re6+=) 25...Bb2–/+ 26.Qb2 Qe5 (26...Rd8 27.Kg1–/+) 27.Qc1 (better is 27.Qe5!? Re5 28.Nd3=) 27...Rd8–/+ 28.Bc6 (28.Kg1 Be6 29.Rc3 c4–/+) 28...Bf5 (28...Qh2 29.Rf4–/+) 29.f3 (29.Nf3 Qe6 30.Kg1 h6–/+) 29...Qd6 (29...Qh2 30.e4 Bh3 31.Rc2–+ (31.gh3?? Rd2 32.Qd2 Qd2–+)) 30.e4 Be6 31.Rc3 Qd2 32.a5 Nh5 33.Qd2+= Rd2 34.ab6 ab6 35.Rc2 Rc2 36.Nc2 Kf8 37.Kf2 Ke7 38.g3 Nf6 39.Ne3= Bd7?? 40.e5+– Ne8 41.Nd5 Ke6 42.Bd7 Kd7 43.Nb6 Ke6 44.Nc4 Kd5 45.b6 Kc6 46.Ke3 g6 47.f4 Ng7 48.g4 Ne6 49.f5 Nd8 50.Ke4 g5 51.e6! fe6 52.f6 Kd7 53.Ne5 Ke8 54.Kd3 Nb7 55.Kc4 Kd8 56.Kb5 Nd6 57.Kc6 1–0. Matveenko,Yury (2060) – Shcherbakov,Nikolay (1915), Voronezh RUS, 2014. (=1.Nf3 Nf6 2.b4 e6 3.a3 c5 4.b5 d5 5.e3 b6 6.Bb2 Nbd7)

7.c4 dc4 8.Bc4 Bb7 9.0–0 Bd6 10.Be2 0–0 11.d4 Qe7 12.Nbd2 Rac8 13.h3 Rfd8 14.a4 Bb8 15.Qb1 e5 (15...cd4 16.Nd4 Nc5 17.Rd1+=) 16.de5= Ne5 17.Rd1 Ng6 18.Qf5 Ne4 19.Nc4 f6 20.h4 Qc7 21.Qh3 Nh8 (21...Qf7 22.a5 Rd1 23.Rd1+/– (worse is 23.Bd1 Qc4 24.a6 Nf2–+)) 22.Nfd2 Nf7 (22...Qe7 23.Ne4 Be4 24.a5 ba5 25.Bc3+=) 23.Bf3 (better is 23.Bg4+/–) 23...Nd2= 24.Nd2 c4 25.Bc3 Qe7 26.Be2 Be5 27.Be5 Ne5 28.Qf5 Rc5 29.Qc2 Will c4 fall? 29...Rdc8 30.Qc3 Qe6 31.Rac1 Nd3 32.Rb1 Qf5 33.Nf3 Qg4 34.Rd2 Ne5 35.Ne1 Qh4 36.Rd4 Qh6 37.f4 Ng6 (37...Nf7 38.Rbd1=) 38.Rc4 (38.Bc4 Kh8=) 38...Rc4 (38...Bd5 39.Rc5 Rc5 40.Qd4=) 39.Bc4= Kh8 40.Qd3 Nf8 41.Rd1 Qh5 42.Bb3 Qc5 43.Kf2 ˝–˝. Ehrlich,Hans Georg (1930) – Steves,Dayanand (2005), NRW Class2, 2008.

7.c4 Bd6 8.Nc3 =+.

7.c4 Bd6 8.d4 0–0 9.Nbd2 Bb7 10.Bd3 Qc7 11.Rc1 Rac8 0–1. Wiszniowski,Eugeniusz (1780) – Kwiek,Janusz (1815), 17OBSen–Rowy Poland, 2008.

7.c4 Bd6 8.d4 0–0 9.cd5 ed5 =.

7.d4 Bb7 8.Nbd2 (8.dc5 Nc5 9.Be5 a6=) 8...Qc7 (8...c4 9.Bc3+=) 9.Rc1 (9.c4!?=) 9...c4–/+ 10.c3 Bd6 11.g3 (11.Ra1–/+) 11...Ne4 (11...a6 12.ba6 Ra6 13.Ra1–/+) 12.Ra1 (12.Ne4!? de4 13.Nd2=) 12...Ndf6–/+ 13.Nb1? (better is 13.a4–/+) 13...Ng4–+ 14.Qc2 Nef2 (14...Ngf2 15.Rg1–+) 15.Rg1 Ne4 (15...a6 16.ba6 Ba6 17.Qa4 b5 18.Qc2–+) 16.Bh3 (16.Ke2 a6–+) 16...Ne3 17.Qe2 Nf5 18.Bf5 (18.Nbd2 Nd2 19.Kd2 0–0–+) 18...ef5 19.Nh4 g6 20.Qf3 (20.Kd1 0–0–0–+) 20...Qe7 (20...f4!? 21.Ng2 fg3 22.hg3 Bg3 23.Kd1–+) 21.Kd1 Qg5 (21...f4!? 22.Nd2–+) 22.Bc1 Qg4 23.Rf1 (23.Bh6 0–0–0–+) 23...Qf3 (23...h5 24.Kc2–+) 24.Rf3 (24.Nf3 a6 25.ba6 Ra6–+) 24...Bc8 25.Kc2 (25.Nd2 Bd7–+) 25...Bd7 26.h3 (26.a4 a6 27.a5 ba5 28.Ra5 Bb5–+) 26...Kd8 (26...Bg3 27.Ng2 Bb5 28.a4–+) 27.Nd2 (27.Bf4 Bf4 28.gf4 Re8–+) 27...Re8 (27...Ng3 28.Nf1 Nf1 29.Rf1 Bb5 30.Bf4 Bf4 31.Rf4–+) 28.Nf1 (28.Ne4 de4 29.Bg5 Kc8–+) 28...Bc7 (28...Bb5 29.Bf4–+) 29.Ng2 Bg3 (better is 29...Bb5 30.Bf4–+) 30.Nf4?? (better is 30.Ng3 Bb5 31.Ne4 Ba4 32.Kd2 de4 33.Rf2–/+) 30...Bf4–+ 31.Bf4 (31.Rf4 Bb5 32.a4 Bd7–+) 31...g5 32.Bc1 h6 (32...h6 33.Ne3 f4 (worse is 33...Bb5 34.Rf5 Ba4 35.Kb2–+) 34.Nd5 Bb5–+; 32...f4!? 33.a4–+) 0–1. Shutov,V – Kazakov,Peter (2415), Moscow Region–ch op, 2004.

7.d4 c4 8.Be2 +=.

7.Be2 Bd6 8.0–0 0–0 9.c4 e5 =.

7.g3 Bd6 +=.

7.c4 Bb7

8.d4 dc4 9.Bc4 Be7 (9...Rc8 10.Nbd2=) 10.0–0 0–0 11.Nbd2 (11.Qe2 Rc8=) 11...cd4 (11...a6 12.ba6 Ba6 13.Qc2+=) 12.Bd4 (12.Nd4 a6=) 12...Bc5 (12...a6 13.a4=) 13.Bb2 (13.Nb3 Bd6=) 13...Qe7 14.Qc2 (14.Qe2 Rfd8=) 14...Rac8 (14...a6 15.ba6 Ba6 16.Rfd1=) 15.Rfc1 Rc7 16.Qd1 (16.Ng5 Bd6+=) 16...Rfc8 17.Bd3 Bd6 (17...e5 18.Nb3=) 18.a4 (18.Nc4 Bc5=) 18...Nc5+= 19.Bc2 (19.Be2+=) 19...a6 (19...Bd5!?+=) 20.Nc4+= Rd8 (20...Bf3 21.Qf3 (21.Qd6?! Qd6 22.Nd6 Rd8+–) 21...Ncd7 22.Nd6 Qd6 23.ba6+/–) 21.Qe2 (21.Bd4 ab5 22.ab5 Ng4+=) 21...ab5 22.ab5 (22.Nd6 A) 22...Qd6? 23.Be5 (23.ab5?! Qe7+=) 23...Qe7 24.Bc7 Qc7 25.ab5+–; B) 22...Rd6 23.Be5 ba4 24.Ba4 Na4 25.Rc7 Qc7 26.Bd6 Qd6 27.Ra4 e5+=) 22...Ncd7 23.Rd1 (23.Nd6 Qd6 24.Rd1 Bd5+=) 23...Bc5 (23...Bf3 24.gf3 Bc5 25.Ne5 Ne5 26.Rd8 Qd8 27.Be5=) 24.Nfe5+= Ne5 25.Ne5 (25.Rd8 Qd8 26.Be5 Rd7+=) 25...Nd7 (25...Rd1 26.Rd1 Nd5 27.Qh5=) 26.Nd7 (26.Qh5 g6 27.Qh6 Be3 28.fe3 Rc2+–) 26...Rcd7 27.Qh5 Threatening mate: Qxh7 27...Rd1 28.Bd1 (28.Rd1 Rd1 29.Bd1 Bd6=) 28...Be4 (28...Rd5 29.Qh3 Ba3+–) 29.Qe5+= Threatening mate... how? 29...Qf6 (29...f5 30.Bb3+=) 30.Qf6 (30.Qe4 Qb2 31.Qh4 f6–+ (31...Qa1?! 32.Qd8 Bf8 33.Qd3=)) 30...gf6 31.Bf6 Ra8 (31...Rd2 32.Bc3 Rd3 33.Bc2 Rc3 34.Be4+/–) 32.Ra6 (32.Ra8 Ba8 33.Bc2 h6+/–) 32...Kf8 (32...Bb7 33.Ra8 Ba8 34.Bc2+–) 33.Bf3 Ra6 34.ba6 (worse is 34.Be4 Ra5+=) 34...Bf3 35.gf3 b5 36.Bd4 (36.Bd4 Bd4 37.ed4+–) 1–0. Jirovec,Peter – Porkert,Piet, Vienna op–B, 2003.

8.d4 Bd6 9.Be2 =.

8.d4 Be7 9.Nc3 0–0 10.cd5 Nd5 11.Nd5 Bd5 12.Be2 Bf6 13.0–0 Rc8 14.Rc1 Qc7 15.Nd2 Qb7 16.f3 (16.Bf3 Bf3 17.Qf3 Qd5=) 16...Qa8 (16...cd4 17.Bd4 Bd4 18.ed4 Rc1 19.Qc1+=) 17.Bd3 cd4 18.ed4 g6 (18...Rc1 19.Qc1 Bg5 20.Qe1=) 19.Ne4 Bg7 20.Qd2 Qb8 21.Bb1 (21.Qe3 Nc5=) 21...Bc4 22.Rfe1 (22.Bd3!? Bd3 23.Qd3=) 22...Bb5+= 23.Qb4 Bc6 24.Nd6 a5 25.Nc8 ab4 26.Ne7 Kh8 27.Nc6 Qd6 28.ab4 Nb8 29.Ne5 Qb4 30.Bc3 Qa3 31.Nc4 Qa7 32.Ne5 b5 33.Kh1 h5 34.Bb4 Re8 35.Bc5= Qc7 36.Bf8 Be5 37.Rc7 Bc7 38.Ba3 Rd8 39.Be7 Rd7 40.Bf6 Kh7 41.Bd3 Bd8 ˝–˝. Koester,Roman (1975) – Stojadinovic,Tomislav (1765), Karl Mala mem op, 2004.

8.d4 Be7 9.Nbd2 0–0 10.Qb3 (10.cd5 Nd5 11.Rc1 a6=) 10...Re8 (10...a6 11.ba6 Ba6 12.Be2+=) 11.Bd3 cd4 12.ed4 (12.Bd4 Nc5 13.Bc5 Bc5 14.cd5 Bd5+=) 12...Ne4 (12...dc4 13.Bc4 a6 14.ba6+=) 13.0–0= Ndf6 (13...Nd2 14.Nd2 Bd6 15.Rfe1=) 14.Rac1 (14.Be4 de4 15.Ne5 Qc7=) 14...Nd2 15.Nd2 dc4 16.Bc4 (worse is 16.Rc4 Bd5–/+) 16...Nd5 (16...a6 17.ba6 Ba6 18.Rfe1+=) 17.Nf3 (17.Rfe1 Bd6=) 17...Bd6 18.Ne5 Be5 (18...Nf4 19.f3+=) 19.de5= Nf4 (19...Qg5 20.Qg3 Qg3 21.hg3=) 20.Rfd1+= Bd5 21.Qg3 Bc4 22.Qf4 Bd5 23.h4 (23.Rd3 Rc8+=) 23...Qe7 24.Rd3 Rec8 25.Rdc3 Qb7 (25...Rc3 26.Rc3 Qd7 27.Qb4=) 26.f3 (26.Rg3 Qe7+=) 26...Rc3 27.Rc3 Rc8 28.h5 h6 29.Qc1 Rc3 30.Qc3 ˝–˝. Schoettker,Jochen (1935) – Ehrlich,Sven (2000), Harburg–chC 5th, 2007.

8.cd5 ed5 9.Be2 Bd6 =.

8.Be2 dc4 9.Bc4 Bd6 +=.

8.Be2 Bd6 9.0–0 0–0 (9...dc4+=) 10.d4 Qc7 11.h3 dc4 12.Nbd2 cd4 13.Bd4 Bd5 14.Qa4 Nc5 15.Bc5 Bc5 16.Bc4 Bc4 17.Qc4 Rac8 18.Rfc1 Qd7 19.Qb3 Rfd8 20.Rd1 Qc7 21.Rac1 Qe7 22.a4 Nd7 23.Nc4 f6 24.Nd4 Bd4 25.Rd4 Nc5 26.Rd8 Rd8 27.Qa2 Kf7 (27...Qd7!?=) 28.a5+= Qc7 29.ab6 ab6 30.Nd2 (30.Qc2!?+/–) 30...Qd7= 31.Nc4 Qb5 32.Qa7 Kg6 33.Nb6 Nd7 (33...Rd2 34.Nc8 Ne4 35.Ne7 Kh5 36.Ng8+=) 34.Nd7 (34.Rd1 Qc5 35.Qb7+– (35.Rd7?! Rd7 36.Qd7 Qb6=)) 34...Rd7= 35.Qa2 ˝–˝. Schmidbauer,Josef – Ulmer,Hanno, Niederbayern–chT, 2000.

8.Be2 Bd6 9.Nc3 dc4 =.

8.Be2 Bd6 9.d3 e5 10.cd5 Nd5 11.Nc3 Qe7 12.Ne4 Bc7 13.0–0 0–0 14.Qb3 h6 15.Nfd2 Kh8 16.Bf3 Rfd8 17.Nc4 N7f6 18.Rad1 Bb8 19.Qa2 Re8 20.Nf6 Nf6 21.Bb7 Qb7 22.f4 Qd5 23.Qa1 Nd7 24.e4 Qe6 25.Ne3 f6 26.f5 Qf7 (better is 26...Qb3!?+=) 27.Nd5 Bd6 28.Rf3 Rac8 29.Rc1 c4 (better is 29...a6!?+=) 30.Rc4+– Rc4 31.dc4 Nc5 32.Qe1 Nb7 33.Bc1 Rc8 34.Rh3 Bc5 35.Kh1 Kh7?? (better is 35...Qf8 36.Bd2 Nd6+/–) 36.Qh4 Rh8 37.g4 (better is 37.Bh6 Kg8 38.Rg3+–) 37...Kg8 38.g5! h5? (38...fg5 39.Bg5; 38...hg5 39.Qh8 mate Mate attack) 39.gf6 gf6 40.Nf6 (40.Qf6?! Qf6 41.Nf6 Kf7 42.Rh5 Rh5 43.Nh5 Nd6+–) 40...Kf8 41.Nd5 Rg8 42.Bh6 Ke8 43.Rg3 Rg3 44.Qg3 (44.hg3?! Ba3 45.Qg5 Kd7+–) 44...Bd4 (44...Bd6 45.Qg6 h4+–) 45.Qg6 Qg6 46.fg6 Nc5 47.Nf6 (47.Nf6 Ke7 48.g7+–) 1–0. Magomedov,Murad – Khamelovsky,Anatoly (1820), Kislovodsk RUS, Narzan Open, 2012.

6.Nf3 Be7

7.c4 0–0 8.Nc3 Bb7 9.Be2 dc4 10.Bc4 a6 11.a4 ab5 12.ab5 Nbd7 13.0–0 Qc7 (13...Ra1 14.Ba1 Bf3 15.gf3+=) 14.Ng5 h6 15.Nf3 Ra1 16.Ba1 Rd8 17.Qe2 Bf3 18.Qf3 Ne5 19.Qe2 Nc4 20.Qc4 Rd2 21.Ne2 Rd5 (21...Qd7 22.Nf4–/+) 22.Nf4 Rg5 23.Rd1 Qb7 24.g3 (24.Bf6 Bf6 25.Rd6–/+) 24...Rg4 (better is 24...Qf3 25.Qe2 Qe2 26.Ne2 Rd5 27.Rd5 Nd5–+ (27...ed5?! 28.Nf4+=)) 25.Qe2= Rg5 26.h4 Rf5 27.g4 Rf4 28.ef4 Nd5 29.g5 (better is 29.Qe4!? Bh4 30.g5=) 29...Nf4–/+ 30.Qg4 hg5 31.hg5 Bg5! 32.Bg7?? (32.Qg5 Nh3 Double attack (32...Nh3 Decoy)) 32...f5–+ (32...f5 33.Rd8 Bd8 (33...Kg7? 34.Qg5 Ng6 35.Rd6+–) 34.Qf4 Qg7 35.Kf1 Qd7–+; 32...Kg7?! 33.Qg5 Ng6 34.Rd6+=) 0–1. purplegadge (1735) – masplund (1660), gameknot.com, 2013.

7.c4 0–0 8.cd5 Nd5 9.e4 =+.

7.c4 dc4 8.Bc4 0–0 9.d3 Bb7 10.e4 (10.0–0 a6=) 10...Qd7 11.Qb3 Rd8 12.Ng5 Qd3?? (better is 12...Qd6=) 13.Bd3+– Be4 (13...h6 14.e5 hg5 15.ef6 Bf6 16.Bf6 gf6 17.f3+–) 14.Ne4 Ne4 15.Be4 (15...Nd7 16.Ba8 Ra8 17.0–0+–) 1–0. Diener,Rudolf – Zimmer,Georg, corr SOK–89–43, 1989.

7.Be2 Nbd7 8.0–0 0–0 9.a4 Bb7 10.Re1 Qc7 11.d3 Rad8 12.Nbd2 e5 13.Nh4 Rfe8 14.Nf5 Bf8 15.c4 d4 16.e4 g6 17.Ng3 Bg7 18.a5 Nf8 19.Nf3 Ne6 20.Bc1 Nf4 21.Bd2 Ne2 22.Qe2 Nd7 23.Reb1 f5 24.a6 Ba8 25.ef5 e4 26.de4 (26.Qe4 Be4) 26...d3 27.Qd1 (27.Qd3 Ba1) 27...Ba1 28.Ra1 Be4 29.Ne4 Re4 30.fg6 hg6 31.Bg5 Rde8 32.Qd3 Nf8 33.Be3 Qe7 34.Rd1 Re3 (better is 34...Nh7+/–) 35.fe3+– Qe3 36.Qe3 Re3 37.Rd5 Rc3 38.Ne5 Kg7 (38...Rc1 39.Kf2 Rc2 40.Kf3 Rc3 41.Ke2 Ra3+–) 39.Nc6 Rc4 40.Na7 Rc1 41.Kf2 c4 42.Nc8 c3 43.Nb6 c2 44.Rc5 Rb1 (44...Ne6 45.Rc8 Ra1 46.Rc2 Nd4+–) 45.a7 Ra1 46.a8Q Ra8 47.Na8 Ne6 48.Rc2 Nd4 (48...Nd8+–) 49.Rc7 Kf6 50.b6 (50.b6 Ne6 51.Rc6+–) 1–0. marre (2120) – saxe0 (1755), GameColony.com, 2003.

7.Be5 Nbd7 =.

6.f4 Bb7

7.Nf3= a6 8.Be2 =.

7.Nf3 Qc7 8.Be2 Nbd7 9.0–0 Bd6 10.d3 e5 11.g3 (11.fe5 Ne5 12.h3 0–0+=) 11...d4 (11...ef4!? 12.ef4 0–0–/+) 12.fe5= Be5 13.Ne5 Qe5 14.e4 0–0 15.Nd2 Rad8 16.a4 Qe6 17.Nc4 Ne5 18.Ne5 Qe5 19.Bc1 (19.Bf3 c4=) 19...h6 (better is 19...Ne4!? 20.de4 d3–/+) 20.Rf5 Qe6 21.g4 g6 (21...Bc8!?=) 22.Rf2+= Rfe8 (better is 22...g5!?+=) 23.Bh6+– Nd7 24.Qf1 Ne5 25.Bg5 Rd6 26.Qh3 Nd7 27.Qh6 Qe5 (better is 27...Rf8+–) 28.Raf1 Qg7 29.Rf7 Qf7 (29...Qh6 30.Bh6 g5+–) 30.Rf7 Kf7 31.Qh7 Ke6 32.Qg6 Nf6 33.Qf6 1–0. Ventas Cosano,David (2145) – Garcia Amodia,Daniel (1975), Madrid Low cost Cup, 2009.

7.Nf3 Bd6 8.c4 (8.Be2 0–0=) 8...Nbd7 9.Be2 0–0 10.0–0 Qc7 11.d4 cd4 12.Nd4 dc4 13.Nd2 (13.Nc3!?–/+) 13...c3–+ 14.Rc1 (14.Bc3 Qc3 15.Nc4 Bc5–+) 14...Nd5 (worse is 14...cb2 15.Rc7 Bc7 16.Bf3 Bf3 17.Qf3+/–) 15.Rf3 Qd8 16.Bc3 Ba3 (16...Nc3?! 17.Rc3 Bf3 18.Bf3–/+) 17.Rg3 N7f6 18.Rc2 Bc5 19.Bb2 (19.Kh1 Nc3 20.Rc3 Nd5–/+) 19...Ne3! 20.Re3 Decoy theme: e3 20...Bd4 21.Bd4 Qd4 22.Nf1 Qd1 23.Bd1 Rfd8 24.Bf3 Bf3 25.Rf3 a6 26.ba6 Ra6 27.Rb3 Kf8 28.Ne3 Ne4 29.g3 Nc5 30.Rb1 Rd3 (30...Rc8 31.Rcb2 Ra3 32.Nc4–/+) 31.Nc4 Rb3 32.Rcb2 Rb2 (32...Rb2 33.Rb2 Nd7–+) 0–1. Braeken,Barry – Kuhn,Christian Helmut, C1.1999.0.05, 1999.

7.Nf3 Nbd7

8.Be2 Qc7 9.0–0 Be7 10.a4 a5 (10...0–0 11.Na3=) 11.Na3 (11.ba6 Ba6 12.Nc3 0–0=) 11...h6 (11...0–0 12.Qe1=) 12.c4 0–0 (12...Rd8 13.Ne5=) 13.Qb3 (13.Ne5 Rfd8=) 13...Rfe8 (13...Rad8 14.Rad1=) 14.Rac1 (14.Be5 Qd8=) 14...Bf8 (14...d4 15.Rcd1=) 15.Ne5 Rad8 16.Bf3 (16.Nd7 Qd7 17.Bf6 gf6=) 16...Ne4+= 17.Qc2 Ne5 18.Be5 Qe7 (18...Bd6 19.Bb2=) 19.Nb1 (19.Rcd1 Nd6=) 19...Rd7 (19...Nd6 20.Bd6 Qd6 21.Nc3=) 20.Rcd1 (better is 20.d3 Nd6 21.cd5 ed5 22.Rfe1=) 20...Red8 (better is 20...Nd6!? 21.Na3 Red8=) 21.cd5+/– ed5 (21...Nd6 22.de6 Qe6 23.Bc6 Bc6 24.bc6+=) 22.Bg4 Qh4 (22...Rd6 23.Bd6 Nd6 24.Rde1+/–) 23.Bd7 Rd7 1–0. Hort – Muenster, Cham RS/18/97, 1984.

8.Be2 Bd6 9.0–0 0–0 10.Nc3 =.

8.Be2 Bd6 9.0–0 0–0 10.Ne5 Ne4 11.d3 Nef6 12.Qe1 Ne5?? (better is 12...a6 13.Qg3 Be7=) 13.fe5+– (13.Be5?! d4=) 13...Be5 14.Be5 Nd7 15.Bb2 Qg5 16.Rf3 d4 17.Rg3 (17.ed4?! Bf3 18.Bf3 Rac8+–) 17...Qf6 18.ed4 cd4 19.Qb4 e5 20.c3 dc3 21.Nc3 Rac8 22.Bg4 Rfd8 (22...Rc7+–) 23.Rf1 Qh6 (23...Qh4 24.Rf7! Qg3 25.Rg7 Kg7 26.Qe7 Kh8 27.hg3+–) 24.Qe7 (24.Qe7 Rb8 25.Bd7+–) 1–0. b4_player – hillary, internet, 2013.

8.Be2 Bd6 9.0–0 Qc7 (9...0–0 10.Nc3=) 10.a4 (10.Nc3 0–0=) 10...e5 (10...0–0 11.c4+=) 11.fe5 Ne5 12.Ne5 Be5 13.Be5 Qe5 14.Nc3 (14.Ra3 0–0=) 14...0–0 15.Bf3 Rad8 (15...a6 16.Qe2=) 16.Qe1 (16.Qe2 Bc8=) 16...d4+= 17.Bb7 dc3 18.dc3 (18.d3 Ng4 19.Qh4 Qe3 20.Kh1 Nf6+=) 18...Ng4 19.Qh4 f5 (19...Ne3 20.Rae1 Qc3 21.Qg3–/+) 20.Rae1= Ne3 21.Qg5 (21.Rf3 f4=) 21...Rde8 22.g3? (better is 22.Bd5! Kh8 23.Bc6+=) 22...Qc3–+ 23.Bc6? (better is 23.Qh5–+) 23...Nf1 24.Re8 (24.Rf1 Re1–+) 24...Re8 25.Be8 Qe3 (better is 25...Ne3 26.Bf7 Kf7 27.Qh5 Kf6–+) 26.Qe3–/+ Ne3 27.c3 Kf8 28.Bh5 Ke7 (28...Nd5 29.c4 Nc3 30.Bf3–+) 29.Kf2 Nd5 30.c4 Nf6 (30...Nc3 31.Bf3–+) 31.Bf3–/+ Kd6 32.Ke3 Ke5 33.Bd1 (33.Kd3 Ne4–/+) 33...g6 34.Be2 g5 (34...h5 35.Kd2–+) 35.Bf3 h6 (35...h5 36.Kd3–+) 36.h3 (36.Kd3 f4–/+) 36...h5–+ 37.Be2 (better is 37.Bb7–+) 37...g4 38.hg4 hg4 (38...Ng4?! 39.Kf3–+; 38...fg4?! 39.Bd3 Ne8 40.Bg6–+) 39.Bd3 (39.Kf2 Ne4 40.Kg2 Kd4–+) 39...Ne4 40.Be4 fe4 (40...fe4 41.Ke2 Kd4–+) 0–1. Gravel,Simon M – Leveille,Francois (2350), CAN–ch Toronto, 1996.

8.Be2 Bd6 9.a4 Qc7 10.c4 e5 11.fe5 Ne5 12.cd5 Bd5 13.Qc2 Nf3 14.gf3 0–0–0 (better is 14...Bh2!? 15.Kd1 Qg3–/+) 15.a5 Bh2 16.ab6 ab6 17.Bf6 gf6 18.Nc3 Bb7 19.0–0–0 (19.Kd1 Qe5 20.Kc1 Qg5+=) 19...Be5 (19...h5 20.Qf5 Kb8 21.Qf6–/+) 20.Rh4 Bc3 21.Qc3 (worse is 21.dc3 Qe5–+) 21...Kb8 22.Qf6 Bd5 23.Bc4 Bc4 24.Rc4 Qd7?? (better is 24...Rhe8=) 25.Qb6+– Qb7 26.Qb7 Kb7 27.Rc5 Kb6 28.d4 Rd6 (28...Rc8 29.Rc8 Rc8 30.Kd2+–) 29.Rh5 Rf6 30.f4 Re8 31.Kd2 (31.Rh7?! Re3 32.Kd2 Ra3+/–) 31...h6 32.Ra1 Kb7 33.Ra6! Ra6 34.ba6 Ka6 35.Rh6 Kb7 36.Rf6 Re7 37.Kd3 Kc8 38.e4 Rc7 39.Rd6 Rc1 40.e5 1–0. Pietrzak,Janusz (2090) – Sitek,Dawid, Druzynowe Mistrzostwa Slaska POL, 2007.

8.Be2 Be7 9.0–0 =.

6.f4 Be7

7.Nc3 A) 7...d4 8.ed4 cd4 9.Nce2 d3 10.Nd4 dc2 11.Qc2 Bc5 12.Ngf3 Bb7 13.Be2 0–0; B) 7...a6 B1) 8.ba6 Ba6 (8...Na6 9.Nf3 0–0 10.Be2 Nb8 11.0–0 Nc6 12.a4 Bb7 13.Nb5 Ng4; 8...0–0 9.Nf3 Na6 10.Be2 Bb7 11.0–0 Nc7 12.Bd3 c4 13.Be2 Na6; 8...Nbd7 9.a4 h6 10.Nf3 0–0 11.Bb5 Ba6 12.0–0 Bb7 13.Qe1 Qc7; 8...Bd7 9.Nf3 Na6 10.Ne5 0–0 11.Nd7 Qd7 12.Bb5 Qd6 13.Be2 c4; 8...c4 9.Nf3 Na6 10.Nd4 Nc5 11.Be2 0–0 12.0–0 Qd7 13.d3 Ba6) 9.Ba6 Ra6 10.Qe2 0–0 11.Nf3 Ra8 12.0–0 Nc6 13.a4 Qd7; B2) 8.Nf3 0–0 9.ba6 Na6 10.Be2 d4 11.ed4 Nh5 12.g3 cd4 13.Nb5 Bb7; C) 7...0–0 C1) 8.Bd3 Nbd7 (8...Bb7 9.Nf3 Qc7 10.0–0 Nbd7 11.Qe1 Ne4 12.Be4 de4 13.Ng5 Nf6; 8...Qc7 9.Nf3 Bb7 10.0–0 Nbd7 11.a4 h6 12.Qe1 Ne4 13.Ne2 Rfd8; 8...d4 9.ed4 cd4 10.Nce2 Nbd7 11.Nf3 Nc5 12.0–0 Bb7 13.Bd4 Nd3; 8...a6 9.Nf3 ab5 10.Bb5 Bb7 11.0–0 Nc6 12.Bc6 Bc6 13.Ne5 Qe8; 8...c4 9.Be2 a6 10.Nf3 ab5 11.Nd4 Qd7 12.Ncb5 Ba6 13.a4 Nc6) 9.Nf3 Qc7 10.a4 Bb7 11.0–0 h6 12.Qe1 Ne4 13.Ra2 Bf6; C2) 8.Nf3 h6 (8...Bb7 9.Be2 Qc7 10.0–0 Nbd7 11.Bd3 h6 12.Rc1 Bd6 13.g3 Rfe8; 8...Nbd7 9.Bd3 Qc7 10.0–0 Bb7 11.a4 h6 12.Qe1 Ne4 13.Ne2 Rfd8; 8...Qc7 9.Bd3 Nbd7 10.0–0 Bb7 11.Rb1 h6 12.a4 Bd6 13.g3 Rfe8; 8...a6 9.ba6 Na6 10.Be2 Bb7 11.0–0 c4 12.d3 cd3 13.cd3 Nc5) 9.Bd3 Nbd7 10.0–0 Bb7 11.Qe1 Ne4 12.Ne5 Ne5 13.fe5 Qd7; D) 7...Qd6 D1) 8.Bd3 Nbd7 (8...0–0 9.Nf3 Nbd7 10.0–0 Bb7 11.Qe1 Ne4 12.a4 Qc7 13.Be4 de4; 8...Bb7 9.Nf3 Nbd7 10.Na4 Qc7 11.c4 a6 12.Nc3 0–0 13.0–0 d4) 9.Nf3 0–0 10.0–0 Bb7 11.a4 Qc7 12.Qb1 Bd6 13.Qa2 e5; D2) 8.Nf3 Nbd7 (8...Bb7 9.Bd3 Nbd7 10.0–0 0–0 11.a4 Qc7 12.Qe1 Ne4 13.Be4 de4; 8...0–0 9.Bd3 Nbd7 10.0–0 Bb7 11.a4 Qc7 12.Qe1 Ne4 13.Be4 de4; 8...d4 9.Na4 0–0 10.ed4 Nbd7 11.Bd3 Qf4 12.0–0 Qc7 13.Qe2 Bb7; 8...Qc7 9.Be2 Nbd7 10.0–0 0–0 11.Qe1 Bb7 12.a4 h6 13.a5 ba5; 8...h6 9.Na4 0–0 10.Be2 Qc7 11.Be5 Qd8 12.0–0 Nbd7 13.Qe1 Bb7; 8...g6 9.Bd3 Nbd7 10.0–0 0–0 11.a4 Qc7 12.Qe1 Bb7 13.Qh4 c4) 9.Bd3 0–0 10.0–0 Bb7 11.a4 c4 12.Be2 Qc7 13.Qe1 Nc5; E) 7...Nbd7 E1) 8.Bd3 0–0 (8...Qc7 9.Nf3 Bb7 10.0–0 0–0 11.a4 h6 12.Qe1 Ne4 13.Ne2 Rfd8; 8...Bb7 9.Nf3 Qc7 10.0–0 0–0 11.a4 h6 12.Qe1 Ne4 13.Ne2 Rfd8) 9.Nf3 Qc7 10.0–0 Bb7 11.a4 h6 12.Qe1 Ne4 13.Ne2 Rfd8; E2) 8.Nf3 0–0 (8...Qc7 9.Bd3 Bb7 10.0–0 0–0 11.a4 h6 12.Qe1 Ne4 13.Ne2 Rfd8; 8...Bb7 9.Be2 Qc7 10.0–0 0–0 11.Qe1 h6 12.Rd1 d4 13.ed4 Qf4) 9.Bd3 Qc7 10.0–0 Bb7 11.a4 h6 12.Qe1 Ne4 13.Ne2 Rfd8; F) 7...Qc7 F1) 8.Nf3 Bb7 (8...Nbd7 9.Be2 Bb7 10.0–0 0–0 11.Qe1 h6 12.Ra2 d4 13.ed4 Qf4; 8...0–0 9.Bd3 Bb7 10.0–0 Nbd7 11.Qe1 Ne4 12.Be4 de4 13.Ng5 Nf6; 8...h6 9.Be2 Nbd7 10.0–0 Bb7 11.Qb1 0–0 12.Qe1 Bd6 13.Na4 d4) 9.g3 0–0 10.Bg2 Nbd7 11.0–0 Ne8 12.Qe2 Nd6 13.d3 Bf6; F2) 8.Bd3 Nbd7 (8...0–0 9.Nf3 Nbd7 10.0–0 Bb7 11.a4 h6 12.Qe1 Ne4 13.Ne2 Rfd8; 8...Bb7 9.Nf3 Nbd7 10.0–0 0–0 11.a4 h6 12.Qe1 Ne4 13.Ne2 Rfd8) 9.Nf3 0–0 10.a4 Bb7 11.0–0 h6 12.Qe1 Ne4 13.Ne2 Rfd8; F3) 8.a4 d4 9.ed4 cd4 10.Nce2 Nbd7 11.Nd4 Bb7 12.Ngf3 Qf4 13.g3 Qe4; F4) 8.Rc1 d4 (8...Bb7 9.Nf3 d4 10.ed4 cd4 11.Ne2 0–0 12.Ned4 Qf4 13.Bd3 Nbd7) 9.ed4 cd4 10.Nce2 0–0 11.Nf3 Bb7 12.Ned4 Qf4 13.Be2 Bc5; F5) 8.g3 d4 (8...Nbd7 9.Nf3 0–0 10.Bh3 Ne4 11.0–0 Bf6 12.Qe2 Bb7 13.Bg4 Nc3; 8...0–0 9.Nf3 Nbd7 10.Bg2 Bb7 11.0–0 Ne8 12.Qe2 Nd6 13.d3 Bf6; 8...Bb7 9.Nf3 0–0 10.Bg2 Nbd7 11.0–0 Ne8 12.Qe2 Nd6 13.d3 Bf6; 8...a6 9.Nf3 0–0 10.Bg2 Nbd7 11.0–0 Bb7 12.a4 h6 13.Qe2 a5; 8...h6 9.Nf3 Bb7 10.Bg2 Nbd7 11.0–0 0–0 12.a4 a5 13.ba6 Ba6; 8...a5 9.Nf3 0–0 10.Bh3 Nbd7 11.a4 Bb7 12.0–0 h6 13.Qe2 Bd6; 8...Bd6 9.Nf3 Nbd7 10.Bg2 Bb7 11.0–0 0–0 12.Qe2 h6 13.a4 Rfe8; 8...g6 9.Nf3 0–0 10.Bg2 Nbd7 11.0–0 Bb7 12.Qe2 Rfe8 13.a4 Kg7) 9.ed4 Bb7 10.Nf3 cd4 11.Na4 Nbd7 12.Bd4 Nc5 13.Nc5 Bc5; G) 7...Bb7 8.Nf3 Nbd7 (8...Qc7 9.Bd3 Nbd7 10.0–0 0–0 11.Rb1 c4 12.Be2 Nc5 13.Ne5 Nfd7; 8...d4 9.Na4 0–0 10.ed4 cd4 11.Be2 a6 12.Nd4 ab5 13.Bb5 Bg2; 8...0–0 9.Bd3 Qc7 10.0–0 Nbd7 11.Qe1 Ne4 12.Na4 a6 13.Nc3 Bf6; 8...h6 9.Bd3 0–0 10.0–0 Nbd7 11.Qe1 Ne4 12.Ne5 Ne5 13.fe5 Qd7) 9.Bd3 Qc7 10.0–0 0–0 11.Qe1 Ne4 12.Be4 de4 13.Ng5 Nf6.

7.Bd3 A) 7...c4 8.Be2 a6 (8...0–0 9.Nf3 a6 10.Nc3 ab5 11.Nd4 Qd7 12.Ncb5 Ba6 13.a4 Nc6; 8...Bb7 9.Nf3 a6 10.Nc3 ab5 11.0–0 0–0 12.Nb5 Nc6 13.d3 cd3; 8...Nbd7 9.Nf3 0–0 10.Nc3 Nc5 11.0–0 Qc7 12.Qe1 Bb7 13.Qg3 g6; 8...Qc7 9.Be5 Qb7 10.Nc3 Nbd7 11.Bd4 0–0 12.Nf3 Nc5 13.0–0 Bd7) 9.Nf3 ab5 10.Nc3 0–0 11.Nb5 Bd7 12.a4 Na6 13.0–0 Nc5; B) 7...a6 B1) 8.Nc3 ab5 (8...0–0 9.Nf3 ab5 10.Bb5 Bb7 11.0–0 Nc6 12.Bc6 Bc6 13.Ne5 Qe8; 8...c4 9.Be2 ab5 10.Nf3 0–0 11.0–0 Ra5 12.Nd4 Qd7 13.Qe1 Ba6) 9.Bb5 Bd7 10.Nf3 Nc6 11.0–0 0–0 12.a4 Bd6 13.Be2 c4; B2) 8.Nf3 ab5 (8...0–0 9.Nc3 ab5 10.Bb5 Bb7 11.0–0 Nc6 12.Bc6 Bc6 13.Ne5 Qe8; 8...Bd7 9.Nc3 c4 10.Be2 ab5 11.0–0 0–0 12.Nd4 Qe8 13.d3 Na6; 8...c4 9.Be2 0–0 10.Nc3 ab5 11.Nd4 Qd7 12.0–0 Ra5 13.Qe1 Ba6) 9.Nc3 Bd7 10.Bb5 Nc6 11.0–0 0–0 12.a4 Qc7 13.Bc6 Bc6.

7.Be2 A) 7...Nbd7 A1) 8.Ra2 0–0 (8...Bb7 9.Nf3 0–0 10.0–0 Qc7 11.Qe1 d4 12.ed4 Qf4 13.Ne5 Qg5; 8...Qc7 9.Nf3 0–0 10.0–0 Bb7 11.Qe1 d4 12.ed4 Qf4 13.Ne5 Qg5; 8...h6 9.Nf3 0–0 10.Nc3 Bb7 11.0–0 Bd6 12.Qe1 e5 13.fe5 Ne5; 8...a6 9.Nf3 ab5 10.Nc3 0–0 11.Bb5 Bb7 12.0–0 Bd6 13.Be2 Bc6; 8...Ne4 9.Nc3 Bh4 10.g3 Nc3 11.Bc3 Bf6 12.Bf6 Qf6 13.Nf3 0–0; 8...Bd6 9.Nf3 0–0 10.0–0 Bb7 11.Nc3 h6 12.Qe1 e5 13.fe5 Ne5; 8...a5 9.Nf3 0–0 10.Nc3 Bb7 11.0–0 Qc7 12.Qe1 d4 13.ed4 Qf4; 8...g6 9.Nf3 0–0 10.Nc3 Bd6 11.0–0 Qe7 12.Qa1 Bb7 13.Qe1 d4) 9.Nf3 Qc7 10.0–0 Bb7 11.Qe1 d4 12.ed4 Qf4 13.Ne5 Qg5; A2) 8.Qc1 0–0 (8...a6 9.Nf3 0–0 10.Nc3 ab5 11.0–0 Ba6 12.Nb5 Ne4 13.a4 Bf6; 8...Bb7 9.Nf3 0–0 10.0–0 Qc7 11.Nc3 d4 12.Nd1 de3 13.de3 Rad8; 8...Qc7 9.Nf3 0–0 10.0–0 Bb7 11.Nc3 d4 12.Nd1 de3 13.de3 Rad8; 8...h6 9.Nf3 0–0 10.0–0 Bb7 11.Nc3 Qc7 12.Qe1 Bd6 13.Na4 d4; 8...a5 9.Nf3 0–0 10.Nc3 Qc7 11.0–0 Bd6 12.Na4 Bb7 13.Ne5 d4; 8...Ne4 9.Nc3 Bh4 10.g3 Bf6 11.Ne4 de4 12.Nh3 0–0 13.Nf2 Bb7; 8...Bd6 9.Nf3 0–0 10.0–0 Bb7 11.Nc3 Qc7 12.d4 a5 13.Qd2 h6; 8...g6 9.Nf3 Bb7 10.Nc3 0–0 11.0–0 Qc7 12.Qe1 d4 13.Na4 Rac8; 8...h5 9.Nf3 0–0 10.0–0 Qc7 11.c4 d4 12.ed4 Qf4 13.Ne5 Qh4; 8...d4 9.Bf3 Nd5 10.ed4 cd4 11.Bd4 Bc5 12.Qb2 0–0 13.Bg7 Re8; 8...c4 9.Nf3 0–0 10.0–0 Nc5 11.Ne5 Bd7 12.a4 Nfe4 13.Nc3 Nc3) 9.Nf3 Bb7 10.0–0 Qc7 11.Nc3 d4 12.Nd1 de3 13.de3 Rad8; A3) 8.Nf3 Bb7 (8...Qc7 9.Nc3 0–0 10.0–0 Bb7 11.Qe1 d4 12.Na4 Bd6 13.Qh4 Be4; 8...0–0 9.Nc3 Qc7 10.0–0 Bb7 11.Qe1 d4 12.Na4 Bd6 13.Qh4 Be4) 9.0–0 0–0 10.Nc3 Qc7 11.Qe1 d4 12.Na4 Bd6 13.Qh4 Be4; B) 7...Bb7 B1) 8.Nf3 0–0 (8...Nbd7 9.Nc3 Qc7 10.0–0 0–0 11.Bd3 c4 12.Be2 Nc5 13.Qe1 g6; 8...a6 9.ba6 Ba6 10.Ba6 Ra6 11.0–0 0–0 12.Qe2 Ra8 13.Nc3 Nc6; 8...h6 9.0–0 0–0 10.Nc3 Nbd7 11.Qe1 Qc7 12.Bd3 Ne4 13.Be2 Bf6) 9.0–0 Nbd7 10.Nc3 Qc7 11.Qe1 d4 12.Na4 Bd6 13.Qh4 Be4; B2) 8.a4 Nbd7 (8...Qc7 9.Be5 Bd6 10.Bd6 Qd6 11.a5 ba5 12.Nf3 a6 13.Nc3 d4; 8...a6 9.Na3 Ne4 10.d3 Nd6 11.Nf3 0–0 12.0–0 Nd7 13.Qd2 a5; 8...0–0 9.Nf3 Nbd7 10.0–0 Qc7 11.Ne5 Bd6 12.Nd7 Nd7 13.Qe1 e5; 8...h6 9.Nf3 Nbd7 10.c4 0–0 11.0–0 Qc7 12.Qc2 d4 13.ed4 Qf4; 8...Bd6 9.Nf3 Nbd7 10.0–0 0–0 11.Nc3 Qc7 12.g3 e5 13.fe5 Ne5; 8...Ne4 9.Nf3 Bh4 10.g3 Bf6 11.Nc3 0–0 12.0–0 Nd7 13.a5 ba5) 9.Nf3 0–0 10.0–0 Qc7 11.Ne5 Bd6 12.Nd7 Nd7 13.Qe1 e5; C) 7...0–0 C1) 8.Nh3 Bb7 (8...a6 9.0–0 ab5 10.Nc3 Bb7 11.Nb5 Qd7 12.Nf2 Nc6 13.a4 c4) 9.0–0 a6 10.Nc3 ab5 11.Nb5 Nc6 12.Rf3 d4 13.Nf2 e5; C2) 8.Nf3 Bb7 (8...Nbd7 9.c4 Bb7 10.0–0 Qc7 11.cd5 ed5 12.Qc2 g6 13.g3 Rfe8; 8...a6 9.0–0 ab5 10.Nc3 Nc6 11.Nb5 h6 12.Qe1 Ne4 13.d3 Nd6) 9.0–0 Nbd7 10.Nc3 Qc7 11.Qe1 d4 12.Na4 Bd6 13.Qh4 Be4.

7.Nf3 0–0 A) 8.c4 a6 (8...Bb7 9.cd5 ed5 10.Bd3 a6 11.0–0 ab5 12.Nc3 Ra5 13.Ne5 c4) 9.Nc3 Bb7 10.Bd3 d4 11.ed4 cd4 12.Ne2 ab5 13.cb5 Nbd7; B) 8.Nc3 Nbd7 (8...Bb7 9.Bd3 Qc7 10.0–0 Nbd7 11.a4 Ne4 12.Rb1 c4 13.Be4 de4; 8...Qc7 9.Bd3 Nbd7 10.0–0 Bb7 11.a4 Ne4 12.Rb1 g6 13.Ne5 Nef6; 8...Bd6 9.Bd3 Nbd7 10.0–0 Bb7 11.Qe1 e5 12.Ne5 Ne5 13.fe5 Be5; 8...h6 9.Be2 Qd6 10.Na4 a6 11.0–0 ab5 12.Bb5 Bb7 13.Rb1 Qc7) 9.Bd3 Qc7 10.0–0 Bb7 11.a4 Ne4 12.Rb1 c4 13.Be4 de4; C) 8.Be2 a6 (8...Nbd7 9.Nc3 Bb7 10.0–0 Qc7 11.Qe1 d4 12.ed4 Qf4 13.Na4 Bd6; 8...Bb7 9.0–0 Nbd7 10.c4 Qc7 11.Nc3 d4 12.ed4 Qf4 13.d5 ed5) 9.0–0 ab5 10.Nc3 Nc6 11.Bb5 Bb7 12.Bc6 Bc6 13.Ne5 Qe8; D) 8.a4 Qc7 (8...a6 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Bb7 12.0–0 Nbd7 13.Nc3 Qc7; 8...Nbd7 9.Bd3 Qc7 10.0–0 Bb7 11.Nc3 Ne4 12.Rb1 g6 13.Ne5 Nef6; 8...Bb7 9.Bd3 Nbd7 10.0–0 Qc7 11.Nc3 Ne4 12.Rb1 g6 13.Ne5 Nef6; 8...Bd6 9.Be2 Nbd7 10.0–0 Bb7 11.Qe1 Qc7 12.a5 e5 13.a6 Bc8; 8...h6 9.Nc3 Bb7 10.Bd3 Nbd7 11.0–0 Qc7 12.Qe1 Ne4 13.Rb1 Bf6) 9.Bd3 Nbd7 10.0–0 Bb7 11.Nc3 Ne4 12.Rb1 g6 13.Ne5 Nef6; E) 8.Bd3 Bb7 (8...a6 9.Nc3 ab5 10.0–0 Bd7 11.Qe1 Ra5 12.Qg3 c4 13.Be2 Nc6; 8...Nbd7 9.0–0 Bb7 10.c4 a6 11.cd5 ed5 12.Nc3 ab5 13.Bb5 Qc7) 9.Nc3 Qc7 10.0–0 Nbd7 11.a4 Ne4 12.Ra2 Nd6 13.Qe1 g6.

7.Nf3 a6 A) 8.ba6 Na6 (8...0–0 9.Nc3 Na6 10.Be2 Bb7 11.0–0 Nb8 12.a4 Nc6 13.Ne5 d4; 8...Nbd7 9.Nc3 0–0 10.a4 c4 11.Be2 Ba6 12.0–0 Nc5 13.Ne5 Bb7; 8...Bd7 9.Nc3 Na6 10.Ne5 0–0 11.Qf3 c4 12.Be2 Nc5 13.0–0 Qc7; 8...Ba6 9.Ba6 Ra6 10.0–0 0–0 11.Qe2 Ra8 12.Nc3 Nc6 13.a4 Qd7) 9.Nc3 0–0 10.Be2 Bb7 11.0–0 Nb8 12.a4 Nc6 13.Ne5 d4; B) 8.Be2 ab5 (8...0–0 9.0–0 ab5 10.Nc3 Nc6 11.Nb5 Bd7 12.c4 Ne4 13.Qc2 h6) 9.Nc3 Nc6 10.Nb5 0–0 11.0–0 Bb7 12.a4 h6 13.Ne5 Ne4; C) 8.Nc3 0–0 (8...Nbd7 9.Be2 0–0 10.0–0 Qc7 11.a4 h6 12.Qe1 Bb7 13.ba6 Ba6) 9.ba6 Na6 10.Be2 Nb8 11.0–0 Nc6 12.a4 Bb7 13.Ne5 d4.

7.Nf3 Bb7 A) 8.Nc3 0–0 (8...Nbd7 9.Be2 0–0 10.0–0 Qc7 11.Qe1 d4 12.Na4 Bd6 13.Qh4 Be4; 8...Qc7 9.g3 Nbd7 10.Bg2 0–0 11.0–0 Ne8 12.d3 Nd6 13.Qe2 Bf6) 9.Bd3 Qc7 10.0–0 Nbd7 11.Qe1 Ne4 12.Be4 de4 13.Ng5 Nf6; B) 8.Bd3 0–0 (8...Nbd7 9.c4 a6 10.cd5 ed5 11.Nc3 ab5 12.0–0 0–0 13.Bb5 Qc7; 8...c4 9.Be2 a6 10.Nc3 ab5 11.0–0 0–0 12.Nb5 Nc6 13.d3 cd3) 9.0–0 Nbd7 10.c4 a6 11.cd5 ed5 12.Nc3 ab5 13.Bb5 Qc7; C) 8.Be2 0–0 (8...Nbd7 9.Nc3 0–0 10.0–0 Qc7 11.Qe1 d4 12.Na4 Bd6 13.Qh4 Be4) 9.0–0 Nbd7 10.Nc3 Qc7 11.Qe1 d4 12.Na4 Bd6 13.Qh4 Be4.

7.Nf3 Nbd7 8.Nc3 (8.Be2 Bb7 (8...Qc7 9.Nc3 0–0 10.0–0 Bb7 11.Bd3 c4 12.Be2 Nc5 13.a4 Rad8; 8...0–0 9.c4 Bb7 10.0–0 Qc7 11.g3 dc4 12.Bc4 Ne8 13.a4 Nd6) 9.0–0 0–0 10.c4 Qc7 11.cd5 ed5 12.Qc2 h6 13.g3 a6; 8.a4 0–0 (8...Bb7 9.Bd3 0–0 10.0–0 c4 11.Be2 Qc7 12.Nc3 Nc5 13.Qe1 g6; 8...Bd6 9.Bd3 Bb7 10.0–0 0–0 11.Qe1 h6 12.Qg3 Qc7 13.Ra2 d4; 8...Qc7 9.Bd3 c4 10.Be2 0–0 11.Nc3 Bc5 12.g3 Re8 13.0–0 Bb7; 8...g6 9.Be2 0–0 10.Nc3 Bd6 11.0–0 Re8 12.Qe1 e5 13.Qh4 d4; 8...d4 9.ed4 0–0 10.Be2 Nd5 11.g3 cd4 12.Nd4 Bf6 13.Na3 Qc7; 8...Ne4 9.Bg7 Rg8 10.Bb2 Bf6 11.Nc3 Nd6 12.a5 ba5 13.g3 Rb8; 8...h6 9.Nc3 0–0 10.Bd3 Bb7 11.0–0 Bd6 12.Qe1 e5 13.Nh4 g6; 8...Rb8 9.Be2 0–0 10.0–0 Bb7 11.Qe1 Qc7 12.Nc3 d4 13.ed4 Qf4; 8...a5 9.Be2 0–0 10.0–0 Qc7 11.Qc1 Bd6 12.Nc3 h6 13.d4 Bb7; 8...c4 9.Nc3 0–0 10.Be2 Nc5 11.0–0 Bb7 12.Nd4 Bd6 13.Ba3 Qd7) 9.Be2 Bb7 10.0–0 Qc7 11.Qe1 Bd6 12.Qh4 h6 13.a5 ba5; 8.Bd3 0–0 (8...Bb7 9.0–0 0–0 10.c4 a6 11.cd5 ed5 12.Nc3 ab5 13.Bb5 Bd6; 8...c4 9.Be2 0–0 10.0–0 Bb7 11.Nc3 g6 12.Nd4 Qc7 13.Qe1 Rac8; 8...Qc7 9.c4 0–0 10.0–0 Bb7 11.Nc3 d4 12.ed4 Qf4 13.Qc2 cd4; 8...h6 9.c4 a6 10.cd5 ed5 11.0–0 0–0 12.Nc3 ab5 13.Bb5 Bb7) 9.Nc3 Qc7 10.0–0 Bb7 11.a4 Ne4 12.Rb1 c4 13.Be4 de4) 8...Bb7 (8...0–0 9.Bd3 Bb7 10.0–0 c4 11.Be2 Nc5 12.Qe1 g6 13.Ne5 Qc7; 8...Qc7 9.Bd3 0–0 10.0–0 Bb7 11.Qe1 Ne4 12.Qd1 h6 13.Rb1 Bf6; 8...Bd6 9.Bd3 0–0 10.0–0 Bb7 11.a4 e5 12.Ne5 Ne5 13.fe5 Be5; 8...h6 9.Be2 Bb7 10.0–0 0–0 11.Qe1 Qc7 12.Qf2 Bd6 13.Na4 d4; 8...a6 9.Be2 0–0 10.0–0 ab5 11.Nb5 Ba6 12.a4 h6 13.c4 Ne4) 9.Be2 0–0 10.0–0 Rc8 (10...Qc7 11.Qe1 d4 12.Na4 Bd6 13.Qh4 Rad8) 11.d3 Ng4 (11...Qc7 12.Qd2 h6 13.a4 Bd6) 12.Qd2 Nh6 (12...h6 13.Rad1 Qc7) 13.e4 d4 (13...Qc7=) 14.Nd1 f5 15.e5 Qe8 16.a4 Ng4 (16...Qg6 17.a5+=) 17.h3 Nh6 18.a5 Kh8 19.ab6 ab6 20.c3 Rg8 (20...Qg6!?+/–) 21.cd4+– Bf3 22.Bf3 (22.gf3?! cd4 23.Bd4 Nc5 24.Bc5 Bc5 (worse is 24...Rc5 25.d4 Qd8 26.Ne3+=) 25.d4 Rd8=) 22...g5?? (better is 22...cd4 23.Bc6 Qd8+–) 23.d5 g4 24.de6 Nf8 25.hg4 Ng4 26.Bg4 Rg4 27.Ne3 Rh4 (27...h5+–) 28.Nf5 Rh5 (28...Ne6 29.Nh4 Bh4+–) 29.Nd6 Bd6 30.ed6 Kg8 31.Qc3 Ne6 (31...Rh1 32.Kh1 Qh5 33.Kg1 Ne6 34.Qh8 Kf7 35.Ra7 Rc7 36.Rc7 Nc7 37.Qf6 Kg8 38.Qg7) 32.Qh8 Kf7 33.Ra7 Nc7 (33...Rc7 34.Rc7 Nc7 35.Qf6 Kg8 36.Qg7) 34.Qf6 (34.dc7?! Qe3 35.Rf2 Qe1 36.Rf1 Qe3 37.Rf2 Qe1 38.Rf1 Qe3=) 34...Kg8 35.Qg7 1–0. mrkt – erzetor, internet, 2011.

5.b5 c4?!

6.a4 a5 7.d3= cd3 8.Bd3 b6 (8...Bb4 9.Nd2=) 9.Nf3 Be7 10.0–0 0–0 11.c4 Bb7 (11...dc4 12.Bc4 Bb7 13.Qe2=) 12.cd5 Bd5 (12...Nd5 13.Ne5=) 13.Nc3+= Bf3 (13...Bb7 14.Qe2+=) 14.Qf3+/– (14.gf3?! Nbd7=) 14...Ra7 15.Rad1 (15.Rfd1 Rd7 16.e4 Qc7+/–) 15...Nbd7 (15...Rd7 16.Bb1+=) 16.Ne4 Kh8 (16...Qb8 17.Nf6 Bf6 18.Ba3+/–) 17.Nf6 Bf6 18.Bf6 (18.Qh3 h6 19.Ba3 Be7+=) 18...Qf6 19.Qc6 (19.Qe4 g6+/–) 19...g6 (19...Qe7!?+=) 20.Bg6+/– fg6 21.Rd7 Rd7 22.Qd7 e5 23.Qc6 Kg7 24.Qf6 Rf6 25.Rd1 h5 (25...h6 26.f3+–) 26.Kf1 Kf7 27.Ke2 Ke7 28.f3 g5 29.g3 (29.Rd5 Re6+–) 29...Rf8 (29...h4!? 30.Rc1 hg3 31.hg3+–) 30.Rc1 White fights for the Initiative 30...Rf6 31.Rc7 Kd6 (31...Kd8 32.Rg7 e4 33.fe4+–) 32.Rc6 Ke7 33.Rf6 Kf6 34.Kd3 Kf5 Black prepares the advance g4 35.e4 Kf6 36.Ke3 Ke6 (36...g4 37.f4+–) 37.f4 (37.h3 Ke7+–) 37...ef4 (37...g4 38.f5 Ke7+–) 38.gf4 g4 39.Ke2 h4 40.Ke3 Kf6 41.Kd4 White prepares e5 (better is 41.Kf2+–) 41...g3–+ 42.e5 Ke6 43.hg3 h3 44.g4 (44.f5 Kf5 45.Kd5 h2 46.g4 Kg4–+) 44...h2 45.f5 Ke7 46.f6 (46.e6 h1Q 47.Ke3 Qg1 48.Kf4 Qd4 49.Kf3 Qa4–+) 46...Ke6 47.g5 (47.f7 Kf7 48.Kd5 h1Q 49.Kd6 Qg1–+) 47...h1Q 48.g6 (48.Kd3 Qd5 49.Kc2 Qg2 50.Kc1 Qg5 51.Kc2 Qe5 52.f7 Qe4 53.Kc1 Kf7 54.Kd2 Qa4 55.Kd3 Qb5 56.Kd2 a4 57.Ke3 a3 58.Kd2 a2 59.Ke3 Qe5 60.Kf2 a1Q 61.Kg2 Qe3 62.Kh2 Qag1) 48...Qg1 49.Ke4 Qg6 50.Kd4 Qg4 51.Kc3 Qa4 52.Kd3 Qb5 53.Ke3 Qe5 54.Kd3 Qf6 55.Ke4 Qf2 (55...a4 56.Ke3 Qe5 57.Kf3 a3 58.Kg4 Qe4 59.Kg5 a2 60.Kh6 Qg2 61.Kh5 a1Q 62.Kh4 Qh8) 56.Kd3 Qf4 57.Kc3 Qe4 58.Kd2 Kd5 59.Kc3 1–0. vitorluiz (2350) – nay (2215), net–chess.com, 2007.

6.a4 Bb4 7.Nf3 =.

6.d3 Qa5 7.Bc3 Qb5 8.dc4 dc4 =.

6.d3 Qa5 7.Nc3 cd3 8.Bd3 a6 9.Nf3 Bd7 10.ba6 Na6 11.0–0 Be7 12.Ne2 0–0 13.Ng3 Rfc8 14.Ne5 Ba4 15.Qe2 Nc5 16.Rfc1 Rc7 17.Qe1 (17.Rab1 b5+=) 17...Qe1–/+ 18.Re1 Rac8 19.Rac1 Be8 20.Rb1 Na4 21.Bd4 Nc5 22.Bb2 Ra8 23.Ra1 b5 24.Reb1 Nd3 25.cd3 Rca7 26.Rc1 Ba3 27.Ba3 Ra3 28.Ra3 Ra3 29.Rb1 g6 30.h3 Nd7 31.Nd7 Bd7 32.d4 Kf8 33.Ne2 Ke7 34.Nc1 Kd6 35.Nb3 Kc7 36.Kf1 Kb6 37.Ke1 Bc6 38.Rb2 b4 39.Nc5 Kb5 40.Kd2 Kc4 41.Rc2 Rc3 42.Rb2 Ra3 43.Rc2= Rc3 44.Rb2 e5! 45.g3? ed4–+ 46.ed4 Rf3 47.Rc2 Kd4 48.Nb3 Rb3 49.Rc6 Rb2 50.Ke1 Kd3 51.Kf1 b3 52.Rf6 Rc2 53.Rf3 Kc4 54.Rf4 d4 55.Rf7 b2 56.Rc7 Kd3 (56...Kd3 57.Rb7 Rc1 58.Kg2 b1Q 59.Rb1 Rb1–+) 0–1. Zgarda,Jakub – Kozlowska,Marzena, Poznan op–B Poland, 2003.

6.d3= Qa5 7.Nc3 cd3 8.Bd3 Bc5 9.Qd2 (9.Nf3=) 9...d4 (9...Nbd7!?=) 10.ed4+= Bd4 11.Nf3 Qd8 (11...Bb6 12.0–0+/–) 12.Nd4 Qd4 13.0–0 (13.Qg5 0–0+/–) 13...Nbd7 14.Rab1 (14.Rad1 Qh4+/–) 14...Qd6 (14...Nc5!?+=) 15.Qg5+/– b6 (better is 15...0–0!?+/–) 16.Ne4+– Qe7?? (16...Qf8 17.Qg3 e5 18.Be5 Ne5 19.Qe5 Qe7 20.Nf6 gf6+–) 17.Qg7 Rg8 18.Nf6 Nf6 19.Qf6 Qc5 20.Be4 Rb8 21.Qe5 Qe5 22.Be5 Bb7 23.Bb8 Be4 24.f3 Bc2 25.Rbc1 Ke7 26.Rc2 Rb8 27.Rfc1 (27...Rd8 28.Rc7 Rd7 29.R1c4+–; 27.Rc7 Kf6 28.Rd1 h6+–) 1–0. Serrure – Skowron, 1999.

6.d3 Qa5 7.Nc3 cd3 8.Bd3 e5 =.

6.d3 a6 7.dc4+/– ab5 8.cb5 Be7 9.Nf3 Ne4 (9...Nbd7 10.Bd3+/–) 10.Bd3 (10.Bg7!? Rg8 11.Bd4+/–) 10...Bf6 11.c3 (11.Ra2 Qa5 12.Nfd2 Nd2 13.Qd2 e5+/–) 11...Qa5 12.Nd4 Nc5 13.Be2 Bd4? (13...0–0!?=) 14.ed4 (14.Qd4!? Na4 15.Qg7+–) 14...Na4+/– 15.Qc2 Bd7 16.Qb3 0–0 17.0–0 Rc8 18.Re1 Be8 19.h3 Nd7 20.Ra2 Ndb6 21.Ba1 Nc4 22.Nd2 Bb5 23.Nc4 Bc4 24.Bc4 Rc4 25.Qb7 Rac8 26.Rb1 Nc3 27.Bc3 (27.Rc2!? Rd8 28.Bc3 Rc3 29.Rc3 Qc3 30.Qb4=) 27...Qc3–/+ 28.Rab2 g6 29.Rb3 (29.Rb4!?–/+) 29...Qd4–+ 30.Rf3 R4c7 31.Qb5 Qc4 32.Qb2 d4 33.Qd2 e5 34.Rb4 (34.Rfb3!?–/+) 34...Qc1–+ 35.Qc1 Rc1 36.Kh2 R1c3 37.a4 Rf3 38.gf3 d3 39.Rb1 f5 40.Kg2 Rc3 41.Kf1 Ra3 42.Ke1 Ra4 0–1. Zapasnik,Henryk – Jasinska_Kuzia,Lidia (1775), Ogolnopolski Integracyjny Turniej Szachowy Poland, 2008.

6.d3= cd3 7.Bd3 a6 8.a4 (8.ba6 Na6 9.Nf3 Nc5=) 8...Bd7 (8...Bd6 9.Nf3=) 9.Qe2 (9.Nf3 Bb4 10.Nbd2 ab5 11.ab5 Ra1 12.Qa1 Be7+=) 9...ab5 (9...Bb4 10.Bc3 Bc3 11.Nc3=+) 10.Bb5 (10.ab5 Bb4 11.Nd2 Ra1 12.Ba1 0–0=) 10...Bb4=+ 11.c3 Ba5 12.Nf3 0–0 (12...Bb5 13.Qb5 Qd7 14.Ne5 Qb5 15.ab5=+) 13.0–0 Bb5 14.ab5 Nbd7 (14...Qc7 15.Rd1=+) 15.c4= Rc8 (15...Bb4 16.Ra8 Qa8 17.cd5 Nd5 18.e4=) 16.Nbd2 (16.Rc1 dc4 17.Rc4 Rc4 18.Qc4 Nb6+=) 16...Bb6 (16...Bd2 17.Nd2 e5 18.cd5 Nd5 19.Qf3+=) 17.Ne5 (17.Rfc1 Nc5+=) 17...Nc5 (17...Ne5 18.Be5 Bc7 19.Bd4=) 18.Ng4 (18.Rfc1 Qe7+=) 18...Nce4 (18...Nfe4 19.cd5 Nd2 20.Qd2–/+) 19.Ne4 (19.cd5 ed5 20.Nf6 Nf6+=) 19...Ne4= 20.f3 (20.cd5 Qd5 21.Rfd1 Qf5=) 20...Nd6 (20...Nc5 21.cd5 Nb3 22.Rad1 ed5 23.Qd3+/–) 21.cd5 ed5 22.Kh1 Nc4 23.Bd4 Bd4=+ 24.ed4 Qb6 25.h4 Qb5 26.h5 Rfe8–+ 27.Qf2 Qc6 28.Rfe1 b5 29.Re8 Re8 30.Re1 b4 31.Re8 Qe8 32.h6 f5 33.Nf6? gf6 34.Qg3 Kf7 35.Qg7 Ke6 36.Qh7 b3 37.Qb7 Qh5 38.Kg1 Qh6 39.Qb3 Qe3 40.Qe3 Ne3 41.Kf2 Nc2 42.g4 fg4 43.fg4 Nd4 44.Ke3 Ke5 45.Kd3 Nf3 46.Ke3 Nh2 (47.Kd3 Ng4–+) 0–1. Durez,Cedric – Bosch,Joachim, Open A Bethune FRA, 2002.

6.d3= cd3 7.Bd3 Bd6 8.Nf3 Nbd7 9.0–0 e5 10.Be2 a6 (10...Qc7 11.Nc3=) 11.a4 (11.c4 e4 12.Nd4 Qc7=+) 11...ab5 (11...0–0 12.c4=) 12.ab5 Ra1 13.Ba1 b6 (13...Qc7 14.Nc3 e4 15.Nd4=+) 14.Nbd2 (14.Nc3 Bb7=) 14...0–0 (14...Qc7 15.c4=) 15.c4 (15.Nc4 Qc7 16.Nd6 Qd6=) 15...Bb7 16.Qc2 Re8 17.Qf5 Qc7 18.h3 (18.cd5 Bd5 19.Bb2 e4–/+) 18...h6 (18...Rd8 19.cd5 Bd5 20.Rd1=) 19.Qb1 (19.cd5 g6 (19...Nd5?! 20.Nc4=) 20.Qb1 Bd5=) 19...Kf8 (19...dc4!? 20.Bc4 Bf3 21.gf3 Nc5=) 20.Rc1 (20.cd5 Bd5 21.e4 Bb7=) 20...Rc8 21.Bb2 Qd8 22.Nf1 Kg8 23.Ng3 e4 24.Nd4 Bg3 25.fg3 Qe8 26.Nf5 Qe6 27.g4 dc4–/+ 28.Ba3 Bd5?? 29.Ne7+– Kh8 30.Nc8 Ne5 31.Ne7 Nd3 32.Rf1 Bb7 33.Nf5 c3 34.Bd3 ed3 35.Qd3 Qb3 36.Qd6 Nh7 (36...Kh7 37.Qf8 Ne8 38.Qe8 Qa2+–) 1–0. Reimer,Karl – Ortinau,Peter, Pfalz–op Waldfischbach, 1995.

6.d3= cd3 7.Bd3 Nbd7 8.Nf3 =.

6.d3= cd3 7.Bd3 Be7 8.Nf3 0–0 9.Nbd2 Nbd7 10.c4 Nc5 11.Bc2 Qa5 (11...Bd7 12.Qb1=) 12.0–0 dc4 (12...Bd7 13.a4=) 13.Nd4 c3 14.Nc4 Qc7 15.Bc3 Nce4 16.Be4 Ne4 17.Qd3 (17.Rc1 Nc3 18.Rc3 e5=) 17...Nc3 (17...Nc5 18.Qe2=) 18.Qc3 b6 (18...e5 19.Nf3=) 19.Rfc1 Bb7 (19...a6 20.a4=) 20.Qb2 (20.Na5 Bc5+=) 20...Qb8 (20...Bd5 21.Na5 Qd7 22.Nac6=) 21.f3 (21.Rc3 Bd5=) 21...Rc8 22.Rc2 Bf6 23.Rac1 e5 24.Nf5 e4 25.Qb3 Bd5 (25...Rd8 26.f4=) 26.Nfd6 Bc4 27.Nc4 ef3 28.gf3 a6 29.ba6 b5 (29...Ra6? 30.Nd6!? Rc2 31.Qf7 Kh8 32.Rc2+–) 30.Nd2 Rc2 31.Rc2 Qb6 (< 31...Ra6 32.Qb5 Ra8 33.Qb8 Rb8 34.a4+/–) 32.a4 b4 33.Ne4 (33.Nc4 Qc6 34.Ne5 Qe8=+) 33...Bc3=+ 34.Kf2 Qh6 35.Nc3 Qh2 36.Ke1 (36.Kf1 Qh1 37.Ke2 bc3 38.Qc3 Qg2 39.Ke1 Qg3 40.Ke2 h6=) 36...Qg1 37.Ke2 bc3 38.Qc3 38...Qh2 39.Ke1 Qg3 40.Ke2 Qg2 41.Ke1 Qg3 42.Ke2 ˝–˝. Diener,Rudolf – Kaminski,Roman, corr 3GMM–11, 1996.

6.d4 Qa5–/+ 7.Nc3 Bd7 8.a4?? Bb4–+ 9.Nge2 Ne4 10.f3 Nc3 11.Nc3 Bc3 12.Bc3 Qc3 13.Kf2 0–0 14.Be2 Qa5 15.Qb1 f6 16.Rc1 Be8 17.c3 Bg6 18.Qb2 Nd7 19.Bd1 e5 20.Bc2 Bc2 21.Rc2 Rfe8 22.Qa3 Qc7 23.g3 b6 24.Qc1 a5 25.e4 Qd6 26.Rd2 Nf8 27.Qe1 ed4 28.Rd4 Qc5 29.Qd2 Ne6 30.Rd1 Nd4 31.Qd4 Qd4 32.Rd4 de4 33.Rc4 e3 34.Ke2 Rac8 35.Rc6 Rc6 36.bc6 Rc8 37.Ke3 Rc6 38.Kd4 Rc5 39.h4 Kf7 40.f4 Ke6 41.c4 Kf5 (42.h5 Kg4–+) 0–1. Vaast,Jean – Blard,Laurent, Sainte Marie FRA, Open, 2005.

6.d4 Qa5–/+ 7.Nc3 Ne4 –/+.

6.Nf3 Qa5 7.Bf6 gf6 8.Nc3 =.

6.Nf3 Bd7 7.Nc3 =.

6.Nf3 Nbd7 7.Nc3 e5 =.

6.Nf3 Nbd7 7.Be2 Bd6 8.0–0 0–0 9.d3 cd3 10.cd3 b6 (10...e5 11.Nc3=) 11.Nbd2 (11.Qc2 Bb7=) 11...Bb7 (11...a6 12.Qc2 Bb7 13.ba6 Ba6 14.Rfc1=) 12.Nd4 Rc8 (12...a6 13.N2f3=) 13.N2b3 (13.f4 a6=) 13...Bb8 (13...a5 14.f4=) 14.a4 (14.Rc1 Rc1 15.Qc1 Qe7=) 14...e5 15.Nf5 g6 16.Nh6 (16.Ng3 h5=) 16...Kg7 17.Ng4 Re8 (17...Ng4 18.Bg4 f5 19.Bf3=) 18.Rc1 (18.f4 ef4 19.Nf6 Nf6+=) 18...Qe7 (18...Rc1 19.Qc1 Ng4 20.Bg4=) 19.Qd2 (19.Rc8 Rc8 20.f4 ef4 21.ef4 Re8+=) 19...h5 (19...Bd6!?=) 20.Nf6+= Nf6 21.h3 Qd6 22.f4 ef4 23.Rf4+/– Re6 24.Rc8 Bc8 25.Nd4?? Re5?? 26.Nc6+– Re6 27.Nb8 Qb8 28.Rf6 Rf6 29.Qc3 Qd6 30.Qc8 Qb4 31.Qc3 Qh4 32.Qf6 Qf6 33.Bf6 Kf6 34.Kf2 Ke5 35.d4 Ke6 36.Bf3 h4 37.g4 g5 38.e4 de4 39.Be4 Kd6 40.Ke3 Ke6 41.Bf5 Kd6 42.Kd3 Kd5 43.Bc8 f6 44.Bf5 Kd6 45.Kc4 (45...Ke7 46.Kd5+–) 1–0. BlueNoteTokyo (2295) – PerkNutZ (1970), Dos Hermanas Internet Section, 2003.

6.Nf3 Be7 7.d3 Qa5 8.Nc3 Nbd7 =.

6.Nf3 Be7 7.d3 cd3 8.Bd3 0–0 9.0–0 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Qa5 13.Nbd2 Nbd7 14.Nb3 Qc7 15.Qb1 e5 16.Bf5 e4 17.Nfd4 Nb6 18.Rd1 Bf5 19.Nf5 Rc8 20.Nbd4 Ng4 21.Ng3 Bf6 22.Ndf5 Ba1 23.Qa1 f6 24.h3 Ne5 25.Nd4 Nbc4 26.Nge2 Nd6 27.Qa2 Ndc4 28.Nf4 g5? 29.Nd5+– Qf7 30.Nf5 Kf8 31.Qb3 b6? 32.Qb4+– Ke8 33.Nb6! Rc7 34.Nc4 Nc4 35.Rd4 Qe6 36.g4 Kf7 37.Rc4! Ra7 38.Re4 Ra1 39.Kg2 (39.Kg2 Rb1 40.Qd4+–) 1–0. Dias,Jose OG (1635) – Silva,RuiM (1885), VII Open Figueira da Foz POR, 2010.

6.Nf3 Be7 7.Be2 a6 8.Nc3 (8.ba6 Na6 9.d3 b5=) 8...Bd7 (8...ab5 9.Nb5 0–0 10.a4=+) 9.a4= ab5 10.ab5 (10.Nb5 Na6=) 10...Ra1 11.Qa1 0–0 (11...Qb6 12.d3 Bb5 13.Nb5 Qb5 14.dc4 dc4 15.Nd4=) 12.0–0 Qb6 13.Ba3 Ba3 14.Qa3 Ne8 (14...Rc8 15.Rb1=) 15.Rb1 Nc7 (15...Qd6 16.Qd6 Nd6 17.d4+=) 16.Ne5 (16.d3 cd3 17.Bd3 Rc8+=) 16...Bb5 (16...f6!? 17.Nd7 Nd7+=) 17.Qb4+/– Nc6?? (better is 17...Nba6 18.Qf8 Kf8 19.Nd7 Bd7 20.Rb6 Bc6+=) 18.Qf8!!+– Kf8 19.Nd7 Ke7 20.Nb6 1–0. Wall,Bill – Zadumany, internet, 2004.

5.b5 d4

6.Nf3 de3 7.fe3 b6 8.Be2 Bb7 9.0–0 Be7 10.Ne5 0–0 11.Bf3 Bf3 12.Qf3 (worse is 12.gf3 a6+=) 12...Nbd7 (12...Qd5 13.Qg3+=) 13.Nc6+/– Qe8 14.d3 Nd5 15.Ne7 Qe7 16.Nd2 Qg5 17.Rae1 Ne5 18.Qh3 Rad8?? (better is 18...Ng4+/–) 19.Ne4+– Qg4 20.Be5 Qh3 21.gh3 f6 22.Bg3 e5 23.Kh1 Ra8 24.Rg1 (24.c4!? Ne7+–) 24...a6 25.c4 Nc7 26.a4 ab5 27.ab5 Ra3 (27...Ne6 28.Nc3+–) 28.Rd1 (better is 28.d4 Ne6 29.de5+–) 28...Rd8?? (28...Ne6+–) 29.Nf6! Kf7 (29...gf6 30.Be5 Double attack) 30.Be5 gf6 31.Bc7 Rdd3 32.Rd3 Rd3 33.Bb6 Re3 34.Bc5 Rc3 (34...Rb3 35.b6 f5 36.Bf2+–) 35.Rg4 (better is 35.Rb1 Rc4 36.b6 Re4+–) 35...f5 36.Rh4 Kg6 37.Be7 Re3 38.Bd6 h5 (38...Rb3 39.Kg2+–) 39.c5 Kg5 (39...Rb3 40.c6 Rb1 41.Kg2 Rb2 42.Kf3 Rb5+–) 40.Rb4 (better is 40.Bf4!? Kh4 41.Be3 Kh3+–) 40...Rh3 (40...Re1 41.Kg2 Ra1 42.Be7 Kg6+–) 41.b6 Rc3 42.b7 Rc1 43.Kg2 1–0. mikebaldini (1655) – 12wuxxor (1605), gameknot.com, 2015.

6.Nf3 de3 7.fe3 Be7 8.Bd3 0–0 9.0–0 b6 10.Ng5 g6 11.Qf3 h6?? 12.Qa8 hg5 13.Qb8 Bd6 14.Qa7 Bh2 15.Kh2 Ng4 16.Kg3! f5 17.Qg7# 1–0. marus – sondergaard, internet, 2001.

5.b5 Bd6

6.a4 0–0 7.c4 b6 8.Nf3 Bb7 9.d4 Nbd7 10.Bd3 (10.Nc3 Rc8+=) 10...Rc8 (10...cd4 11.ed4 Bb4 12.Kf1 dc4 13.Bc4–/+) 11.Nbd2 Re8 (11...cd4 12.ed4 dc4 13.Nc4 Bb4 14.Ncd2–/+) 12.Rc1 cd4 13.Bd4? (better is 13.ed4 e5 14.Be2–/+) 13...e5–+ 14.0–0 ed4 15.Nd4 g6 16.N2b3 (16.cd5 Rc1 17.Qc1 Nc5–+) 16...Nc5 17.Re1 (17.cd5 Nd5 18.Nc5 bc5–+) 17...dc4 (better is 17...Nd3 18.Qd3 dc4 19.Rc4 Bh2 20.Kf1–+) 18.Bc4 Be5 19.Nc5 bc5 20.Nb3 Qd1 (20...Qc7 21.f4 Bb2 22.Rc2–+) 21.Red1 Re7 22.f3 Rd7 23.a5 Rd1 24.Rd1 Kf8 25.e4 Ke7 26.g3 g5 27.Kf2 (27.Kf1 g4 28.f4 Bb2–+) 27...g4 28.Bd5 (28.a6 Ba8–+) 28...Nd5 29.ed5 gf3 30.Kf3 c4 31.Na1 (31.Ke4 cb3 32.Ke5 Rc5–+) 31...Ba1 (better is 31...Rc5 32.Rb1–+) 32.Ra1 Bd5 33.Ke3 Kd6 34.Kd4 c3 35.Kd3 c2 36.Kd2 Bc4 (better is 36...Be4 37.b6 ab6 38.ab6–+) 37.Kc2 Bb5 38.Kd2 Kc7 39.Rc1 Kb7 40.Rc8 Kc8 41.Kc3 Kc7 (41...Kb7 42.Kb3–+) 42.h3 (42.Kb4 Bc6–+) 42...Kc6 43.h4 Kc5 44.g4 Bd7 45.g5 Kb5 46.a6 Ka6 47.Kb4 Kb6 48.h5 a5 49.Kc4 a4 50.Kb4 Kc7 51.Ka3 Kd6 52.Kb4 Ke5 53.h6 (53.Kc4 Kf4 54.h6 Kg5–+) 53...Kf5 (53...Kf5 54.Kc3 Kg5–+) 0–1. Van Lit,Mats – Schippers,Philippe, NED–ch U12 Rijswijk, 2007.

6.c4 a6 7.a4 ab5 8.cb5 Nbd7 9.Nf3 e5 10.Be2 e4 11.Ng1 c4 12.Nc3 Nc5 13.f3 Qc7 14.fe4 Bh2 15.Nd5 (15.e5 Be5 16.Nf3 Bc3 17.Bc3 Qg3 18.Kf1 Nfe4–+) 15...Qg3 16.Kf1 Nfe4 17.Nh3 (17.Qe1 Qe1 18.Ke1 Bg3 19.Kd1 Nf2 20.Kc2 Bf5 21.Kc3 Ra4 22.Nf3 Nh1 23.Bc4–+) 17...Qf3!! 18.Bf3 (18.Bf3 Ng3 Mate attack; 18.gf3 Bh3 Mate attack) 18…Ng3 (18...Ng3 19.Ke1 Nd3) 0–1. Rush,Bradley – Hammerschmidt,Volker, OP–2011–0–01682, 2011.

6.c4 a6 7.ba6 ba6 8.d4 0–0 9.Nf3 Nc6 10.Be2 Rb8 11.Qc2 Qb6 (11...cd4 12.Nd4 Nd4 13.Bd4–/+) 12.Bc3 (12.dc5 Qc5 13.Bf6 gf6=) 12...Qb3 (12...cd4!? 13.ed4 dc4+=) 13.Qb3= Rb3 14.dc5 Bc5 15.Bf6 gf6 16.cd5 ed5 17.0–0 Bf5 (17...Ne5 18.Rd1 Rd8 19.Nd4=) 18.Ba6 (18.Rc1!? Rb1 19.Rab1 Ba3 20.Rc6 Bb1 21.Ra6+/–) 18...Rfb8 19.Nbd2 (19.Nfd2 R3b6 20.Rc1 Be3 21.fe3 Ra6+=) 19...Ra3 20.Ra3 Ba3 21.h3 Bd6 22.Rc1 Nb4 23.Be2 Be6 24.Nd4 Kf8 25.N2b3 Ke7 26.Na5 Rb6 27.Nac6 Nc6 28.Nc6 Kd7 29.Nd4 Ke7 30.h4 Bd7 31.g3 Kd8 32.Bf3 Be6 33.Kg2 Kd7 34.Ra1 Bb8 35.Ra5 Kd6 36.Rb5 (36.Be2!?+/–) 36...Rb5= 37.Nb5 Kc6 38.Nd4 Kd6 (38...Kc5!?=) 39.Ne6 ˝–˝. Loulou – Pirco, playchess.de, 2005.

6.c4 a6 7.Nf3 ab5 8.cb5 Nbd7 9.Be2 0–0 10.h3 e5 11.0–0 e4 12.Nh2 Ne5 13.f4 Nd3 14.Bd3 ed3 15.Nc3 Re8 16.Qf3 Bc7 17.Nd1 (17.Rac1!?–/+) 17...Ne4–+ 18.Bc1 Bd7 19.Nf2 Bb5 20.Ne4 Re4 21.Ng4 Ba5 Black prepares the advance d4 22.Qg3 d4 23.Nh6 Kf8 24.Nf5 g6 25.Rb1 Ba6 (25...gf5?! 26.Rb5 de3 27.de3–+) 26.Qh4 (26.ed4 gf5 27.dc5–+) 26...Qh4 (worse is 26...gf5 27.Qh7 de3 28.Bb2–+) 27.Nh4 de3 28.de3 d2 29.Rd1 dc1Q 30.Rbc1 Re3 31.Nf3 Ra3 32.Rd7 Bc3 33.Ng5 Bd4 34.Kh2 h6 35.Nf7 Be3 36.Re1 Bf4 37.Kh1 Bg3 38.Red1 Be2 39.Rb1 Ra1 40.Rdb7 Rb1 (better is 40...Bd3 41.R7b3–+) 41.Rb1 Kf7 42.h4 Bh4 (42...c4 43.Rb7 Kg8 44.Rb1 c3 45.Kg1 c2 46.Re1 Rc8 47.Rc1 Rd8 48.Re1 Rd1 49.Rd1 cd1Q) 43.Kh2 c4 44.Rb2 Bd3 45.Kh3 Be7 (45...c3!? 46.Rb7 Be7 47.Rc7–+) 46.Rf2 Bf6 47.g3 c3 48.Rf3 c2 49.Rd3 (49.Rf4 c1Q 50.Rf6 Kf6 51.g4 Qe3 52.Kh4 g5 53.Kh5 Qh3) 49...c1Q 50.Kg4 (50.Rd7 Ke6 51.Kg2 Ra2 52.Kf3 Qf1 53.Ke4 Qe2 54.Kf4 Be5) 50...Qc4 (50...Ra4 51.Rd4 Qf1 52.Ra4 h5) 51.Rd4 (51.Kf3 Qd3 52.Kg2 Ra2 53.Kh3 Qf5 54.g4 Qd3) 51...Qd4 (51...Qe2 52.Kh3 Qf1 53.Kh2 Ra2 54.Rd2 Rd2) 52.Kh3 Ra3 53.Kg2 Qe3 54.Kh1 Ra2 55.g4 Qe1 0–1. mikebaldini (1655) – banditmysweetdog (1705), gameknot.com, 2015.

6.c4 b6 7.Nf3 Nbd7 8.Nc3 0–0 9.d4 Bb7 10.Bd3 Qc7 11.cd5 ed5 12.0–0 Rfe8 Black intends c4 13.Rc1 Rac8 14.Ne2 g6 15.Ng3 c4 16.Re1 Qd8 17.Bb1 Re7 18.Re2 Qe8 19.Qe1 a6 20.ba6 Ba6 21.Qc3 Qf8 22.e4?? (better is 22.Nd2=) 22...Bc7?? (better is 22...Bg3 23.fg3 de4–+ (23...Ne4?! 24.Be4 Re4 25.Re4 de4 26.Nd2+=)) 23.e5+/– Ng4 24.a4 Qg7 25.Rce1 Rce8 26.Ba3 Re6 27.Ng5 (27.h3 Nge5 28.de5 (28.Ne5?! Ne5 29.de5 Be5=; worse is 28.Re5 Ne5 29.Ne5 Be5 30.de5 Re5–/+) 28...Ne5 29.Ng5+–) 27...Qh6+= 28.Nf3 Qg7 29.h3 Nge5 30.de5 (30.Ne5?! Ne5 31.de5 Be5=; worse is 30.Re5 Ne5 31.Ne5 Be5 32.de5 Re5–/+) 30...Ne5 31.Bb2 (better is 31.Ng5 Rc6 32.f4+–) 31...f6?? (better is 31...Nf3 32.Qf3 Qb2 33.Rb2 Re1 34.Kh2 d4+/–) 32.Nd4+– R6e7 33.Ba3 Rd7 34.f4 Rc8 35.Ne6 d4 36.Ng7 dc3 37.fe5 Kg7 38.ef6 Kf6 39.Ne4 Kg7 40.Nc3 Bf4 41.Re7 Re7 42.Re7 Kh6 43.g4 Bg5 44.Rf7 Rd8 45.Bf8 Rf8 46.Rf8 Bd2 47.Ne4 Be3 48.Kh2 Bb7 49.Rf7 Bd5 50.Re7 Bf4 51.Kg2 Bc6 52.Bc2 Bd5 53.h4 (53.h4 Be4 54.Be4+–) 1–0. Svensek,Marjan (2065) – Plahuta,Darko (2100), SLO–chT1 East, 2008.

6.c4 dc4 7.Bc4 0–0 8.Nf3 b6 9.Qc2 Bb7 10.Ng5 h6?? (Better is 10...Nbd7=) 11.Bf6+– Qf6 (11...hg5 12.Bd8 Rd8+–) 12.Qh7 1–0. avisa10 – MarcusBiMan, Live Game Caissa's Web, 2004.

6.Be2 0–0 7.Nf3 b6 8.c4 Bb7 9.0–0 Qe7 10.d4 Nbd7 11.Nc3 Ne4 12.Ne4 de4 13.Nd2 f5 14.Nb3 Rac8 15.d5? (better is 15.dc5!? Nc5 16.Nc5 Rc5 17.Bd4=) 15...ed5–/+ 16.cd5 (16.f4!?–/+) 16...c4–+ 17.Nd4 c3 18.Bc1 Rf6 (better is 18...c2 19.Qd2 Qe5–/+) 19.Nc6+= Qf7 20.Qb3 (better is 20.Qd4!?+=) 20...Rh6 21.h3 Qg6 (better is 21...Bc6!? 22.bc6 Rc6–+) 22.Kh1+= Bc6?? (better is 22...Qf6+=) 23.dc6+– Kh8 24.cd7 Rd8 25.Qc3 Qe6?! (25...Rh3 26.gh3 Qh6 27.Kg2 Qg5 28.Bg4 fg4 29.h4 Qb5 30.Bb2 Qd7 31.Rfd1+–) 26.Rd1 (better is 26.Bb2 Qe7 27.Rfd1+–) 26...Be5 27.Rd4! Bd4 (27...Rf6 28.Bb2 Bd4 29.Qd4 Rd7 30.Qb4+–) 28.ed4 (28.Qd4?! Qd7 29.Qd7 Rd7+–) 28...Rg6 29.Bh5 Qd7 30.Bg6 hg6 31.Bb2 Qd5 (31...Qb5 32.d5! Rd7 33.Rd1+–) 32.Rd1 (32.a4 g5+–) 32...Kh7 (32...Qb5 33.d5 Rd7 34.Kg1+–) 33.a4 f4 (33...a6 34.ba6 Ra8 35.Rc1 Ra6 36.Qg3+–) 34.Bc1 (34.Re1 Rd6+–) 34...f3 35.g3 (35.Qe3 Rf8+–) 35...g5 (35...Qa2 36.Be3 Qa4 37.Rb1+–) 36.Qe3 Kg6 37.Qc3 Rd6?? (37...Kh7 38.Qc6 Qf5+–) 38.Be3 Kf5 39.Qc8 Kf6 40.Rc1 Qb3 (40...Kg6+–) 41.Qf8 Ke6 (41...Kg6 42.Rc7 Qb1 43.Kh2 Qg1 44.Kg1 Rd7 45.Rd7 Kh5 46.g4 Kh4 47.Qh8) 42.Qg8 1–0. mikebaldini (1645) – tonyh, gameknot.com, 2016.

6.Be2 b6 7.Nf3 Bb7 8.d4 c4 9.Nc3 0–0 10.0–0 h6 11.a4 Nbd7 12.Nd2 Qc7 13.h3 Ne4 (better is 13...a5+=) 14.Nce4+/– de4 15.Bc4 Nf6 16.Bb3 Rac8 17.c4 Rfd8 18.Rc1 Qe7 19.Rc2 Bb8 20.Qc1 Qc7 21.Ba1?? (better is 21.g3+/–) 21...Qh2 0–1. mikebaldini (1705) – simson1107 (1745), gameknot.com, 2014.

6.Ne2 0–0 7.f4 Nbd7 8.Ng3 e5 9.f5 e4 10.Nh5 Ne5 11.Be2 Bf5 12.0–0 Nh5 13.Bh5 Bg6 14.Bg4 Qg5 15.h3 f5 16.Be2 Qg3 17.Bh5 Nf3 18.Bf3 Qh2 19.Kf2 ef3 20.Qf3 f4 21.Nc3 fe3 22.de3 Rf3 0–1. 56ctx56 – patoig, playok.com, 2013.

6.Qf3 e5 7.d3 0–0 8.h3 Re8 (8...Qa5 9.Nd2–+) 9.Qd1 (9.c4!?–/+) 9...Qa5–+ 10.Bc3 Qb5 11.d4 Qd7 12.dc5 Bc5 13.Nf3 d4 14.Bd2 de3 15.fe3 (15.Be3 Be3 16.fe3 Qc7–+) 15...Ne4 16.Be2 Ng3 17.Rh2?! (17.Rg1–+) 17...e4 18.Ng1 Qc7 (18...Ne2?! 19.Ne2 Qe7 20.Nbc3–+) 19.Bg4 Nc6 (better is 19...Nf5!? 20.Rh1 Qg3 21.Kf1 Be3 22.Qe2 Qf4 23.Ke1 Bd2 24.Qd2–+) 20.Bc8 Rac8 (worse is 20...Rec8 21.h4 Ne2 22.Qe2 Qh2 23.Nh3–+) 21.Qg4 Ne5 22.Qh4 (22.Qg5 Be7 23.Qf4 Nh5 24.Qe4 Ng6–+) 22...Rcd8 (22...Be3 23.Ne2 Bd2 24.Nd2 Ne2 25.Ke2–+) 23.Nc3 (23.Ne2 Ne2 24.Ke2–+) 23...Rd2! 24.Kd2 (24.Nge2 Ne2 25.Kd2 Nc3 26.Rhh1 Be3 27.Ke3 Qc5 28.Kd2 Nc4 29.Kc3 Qe3 30.Kb4 a5 31.Kc4 Rc8 32.Kb5 Qc5 33.Ka4 b5 34.Ka5 Ra8) 24...Be3! 0–1. mikebaldini (1690) – wwgia (1705), gameknot.com, 2014.

6.Nf3 b6 7.c4 Bb7 8.d3 0–0+= 9.Be2 Nbd7 (9...dc4 10.dc4 Qe7 11.0–0+=) 10.cd5 Nd5 (10...ed5 11.0–0=) 11.Nbd2 a6 12.a4 (12.ba6 Ra6 13.0–0 Bc6=) 12...ab5+= 13.ab5 Qe7 ˝–˝. Sliwa,Bogdan Stanislaw – Eichhorn,Ernst, corr ICCF Chigorin mem, 1992. (=1.Nf3 Nf6 2.b4 e6 3.a3 d5 4.Bb2 c5 5.b5 Bd6 6.e3)

6.Nf3 b6 7.c4 Bb7 8.d4 0–0 =.

6.Nf3 b6 7.c4 Bb7 8.d4 Nbd7 9.Nbd2 Rc8 10.Qc2 (10.Rc1 0–0=) 10...Qc7 (10...cd4 11.Bd4 0–0 12.Rd1+=) 11.Rc1 Ke7 (11...cd4 12.Nd4 Nc5 13.N4b3=) 12.Bd3 h6 (12...cd4 A) 13.Bd4? e5–+ (13...Ba3?! 14.Ra1 dc4 15.Qc4–/+); B) 13.Nd4?! Nc5=; C) 13.ed4 Qb8 14.Qa4=) 13.cd5+= Nd5 14.g3 (14.e4!? Nf4 15.Qb3+=) 14...N5f6 (14...cd4 15.e4 Qc2 16.Bc2 d3 17.Bd3 Rc1 18.Bc1 Nc5–/+) 15.0–0 h5 16.Ne4 Qb8 17.Qe2?? (better is 17.Nf6 Nf6 18.dc5 Rc5 19.Qe2=) 17...Ne4–+ 18.Be4 Be4 19.Nd2 Bb7 20.dc5 Nc5 21.Bg7 (21.Nc4 f6–+) 21...Rh7 (better is 21...Rhg8 22.Bd4 Bg3 23.f3 Bh2 24.Kh1–+) 22.Bb2 h4 23.Qg4 (23.e4–+) 23...hg3 (better is 23...Rg8 24.Bf6 Kf6 25.Qh3–+) 24.fg3 Rg8 25.Qe2 (25.Bf6 Kf8 26.Bg5–+) 25...Rg3 (25...Bg3 26.Rf7 Rf7 27.Bf6 Rf6 28.Nf3 Bf3 29.Kf1 Bc6 30.Qf3 Rf3 31.Ke2 Rf2 32.Ke1 Nd3 33.Kd1 Bf3) 26.hg3 Rh1 27.Kf2 Bg3 0–1. Van Lit,Mats – Goedegebuur,Richard, NED–ch U12 Rijswijk, 2007.

6.Nf3 b6 7.c4 Bb7 8.Be2 0–0 9.0–0 Nbd7 10.d4 Qc7 11.g3 Ne4 12.Nbd2 Ndf6 13.dc5 Bc5 14.Be5 Qd7 15.Nb3 Rac8 (15...dc4 16.Qd7 Nd7 17.Bc4+=) 16.cd5 Nd5 17.Nc5 Rc5 18.Bd4 Rc7 19.a4 (19.Ne5 Qe8 20.Bd3 Ndc3 21.Bc3 Nc3= (21...Rc3? 22.Be4 Be4 23.Qd4+–)) 19...Rfc8 20.Nd2?? (20.Ne5 Qd6 21.Bf3 Nb4+=) 20...Nec3?? (20...Ndc3 21.Qe1 Ne2 22.Qe2 Nd2 23.Qd2–+) 21.Bc3?? (better is 21.Qe1–/+) 21...Nc3–+ (21...Rc3?! 22.Nb1 R3c7 23.a5+=) 22.Qe1 Ne2 23.Qe2 Rc2 24.Rfd1 Qd5 25.e4+= Qd4 26.Qe3 Qb4 27.f3+= R8c3 28.Qf4 Qd4 29.Kh1 Rd3 30.Qb8 Bc8 31.Rac1 Rdc3 32.Rc2 Rc2+= 33.Qf4?? e5 34.Qg5 f6 35.Qh5 Bd7 36.f4 Rd2 37.Rd2 Qd2 38.fe5 Qe1 39.Kg2 Qe4 (39...Qe4 40.Qf3 Bh3 41.Kf2 Qd4 42.Ke1 Qe5 43.Kf2 Qb2 44.Qe2 Qe2 45.Ke2 Be6–+) 0–1. Hal1958 – Kylejmiles, playchess.de, 2006.

6.Nf3 Qe7 7.Ne5 Be5 8.Be5 Nbd7 9.Bb2 e5 10.Be2 e4 11.0–0 0–0 12.d4 ed3 13.cd3 Ne5 14.a4 Nfg4 15.h3 Nh6 16.d4 Nc4 17.Bc4 dc4 18.dc5 Rd8 19.Qh5 Nf5 20.Nc3 Rd2 21.Bc1 Rd3 22.Ne2 g6 23.Qf3 Qc5 24.Nf4 Rb3 25.Rd1 Qe7 26.Qd5 Be6 27.Ne6 Qe6 28.Qb7 Qe8 29.e4 Ng7 30.Be3 c3 31.Rac1 Rc8 (better is 31...Ra3 32.Rd3 Rc8+–) 32.Rd7 Ne6 (32...Rd8 33.Rd8 Qd8 34.Ba7+–) 33.Rf7! (33.Ba7?! Rc4+–; 33.Qa7?! Ra8 34.Re7 Qc8+–) 33...Rb8 (33...Qf7 34.Qc8 Double attack (34.Qc8 Deflection; 34.Qc8 Overloading)) 34.Qa7 Ra8 35.Qb7 Rb8 36.Re7 Rb7 37.Re8 (37.Rb7? Qa8 38.Re7 Qe4–+) 37...Kf7 38.Rc8 Rb4 39.R1c3 Ra4 40.b6 Re4 41.R8c7! Nc7 42.bc7 (42.bc7 Rb1 43.Kh2+–; 42.Rc7?! Rc7 43.bc7 Rc4+=) 1–0. Garcia Padron,J (2200) – Navarro Guerra Del Rio,C (1875), Gran Canaria ESP 9th Arucas Open, 2013. (=1.a3 d5 2.e3 c5 3.b4 e6 4.Bb2 Nf6 5.b5 Bd6)

6.Nf3 Kf8 7.c4 Nbd7 8.d4 cd4 9.Bd4 Qc7 10.cd5+= e5 11.Bb2+/– e4 12.Nfd2 Bh2 13.Nc3 Nc5 14.Ne2?? Nd3 0–1. touwladder – tonycally, ChessWorld.net, 2004.

6.Nf3 h6 7.c4 Nbd7 =.

6.Nf3 h6 7.d3 Qa5 8.Nbd2 =+.

6.Nf3 h6 7.d3 a6 8.ba6 Ra6 9.Nbd2 b5 10.c4 Bd7 11.Be2 0–0 12.0–0 Re8 13.Ne5 bc4 14.dc4 Qc7 15.f4 Rb6 16.Bc3+= Nc6 17.Nc6 Qc6 18.Bf3 Ne4= 19.Be4 de4 20.a4 Ra6 21.a5 f5 22.Rf2 e5 23.g3 Bc7 24.Ra3 Qe6 25.Qa1 g6 26.Rb3 Bc6 27.Rf1 g5 28.Be5 Be5 29.Qe5 Qe5 30.fe5 Re5 31.Rb6+/– Rb6 32.ab6 Kf8 33.Nb3+– Ke7 34.Na5 Re6 35.Rf5 Kd6 36.b7 Bb7 (36...Kc7 37.Rc5 Rd6 38.b8Q (< 38.Rc6 Rc6 39.Nc6 Kb7 40.Nd8 Kb6+–) 38...Kb8 39.Nc6 (< 39.Rc6 Rd1 40.Kg2 Rd2 41.Kh3 h5+–) 39...Kb7 40.Nd4+–) 1–0. Chernov,Igor (2300) – Novikov,Georgy, Ch Russia (club) (for the Deaf), 1998.

6.f4 0–0 7.Nf3 a6 8.ba6 Na6 9.Be2 b6 10.0–0 Bb7 11.Qe1 d4 12.ed4 Bf4 13.Ne5 Be5 (13...Bh6!?=) 14.de5+= Nd5 15.Qg3 Nac7 16.Bf3 Ba6 17.Rf2 Rc8 18.a4 Ne7 19.Be4 Ng6 20.d3 Nd5 21.c4 Nde7 22.Nc3 (22.Nd2 Qc7+/–) 22...Nc6 23.Nb5 Nd4? (Better is 23...Bb5!? 24.ab5 Nd4+/–) 24.Nd6 Ra8? 25.Ba8 Qa8 26.Bd4 cd4 27.Raf1 Bc8 28.Nf7 Bd7 29.Nh6! Kh8 30.Rf8 Nf8 31.Rf7 g6 32.Qg5 Be8 33.Qf6 1–0. Trkn – evilspock1 (2025), ICC, 2004.

6.f4 0–0 7.Nf3 Nbd7 8.Be2 Qc7 9.0–0 e5 10.fe5 Ne5 11.Ne5 Be5 12.Be5 Qe5 13.Nc3 Re8 14.Rf2 Bf5 15.Ra2 d4–+ 16.ed4 cd4 17.Nb1 Be6 18.c4 dc3 19.d4 Qe3 20.Rc2 Ne4 21.Bf3 Nf2 22.Rf2 Bf5 23.Bd5 c2 24.Bf7 Kh8 (25.Qc2 Bc2–+) 0–1. Kruis,Rudy (2010) – Rummel,Zsolt (2115), First Saturday FM–B Sep, 2006.

6.h3 Nbd7 7.Nf3 e5 8.Be2 e4 9.Ng1 (9.Nh4!?–+) 9...0–0 10.d3 Qa5 11.Nd2 Be5 12.d4 cd4 13.ed4 Bf4 14.c3 Qc7 15.Qc2 Nb6 16.a4 Re8 Black prepares the advance e3 17.a5 Bd2 18.Qd2 (18.Kd2 Nc4 19.Bc4 Qc4 20.Ke1–+) 18...e3! 19.fe3 Ne4 20.Qc2 (20.Qc1 Qg3 21.Kd1–+) 20...Qg3 21.Kd1 Bf5 22.Qb3 (22.ab6 Qe3 23.Bf1–+) 22...Nf2 23.Kd2 Qe3 24.Ke1 Nh1 25.ab6 (25.c4 Qb3 26.Bc1 Qc3 27.Kf1 Qd4 28.Ke1 Qg1 29.Kd2 Qe3 30.Kd1 Qe2) 25...Qg1 26.Kd2 Qe3 0–1. ekosachro (2390) – pierred (2825), net–chess.com, 2015.

6.c4 0–0

7.a4 b6 8.Nf3 Nbd7 9.Be2 Bb7 10.0–0 h6 11.d3 Rc8 12.Nbd2 Bb8 13.Ne1 Qc7 14.f4 Qd8 15.Nef3?? (better is 15.Bf3+=) 15...Ng4–+ 16.Re1 Ne3 17.Qc1 Nf5 (better is 17...Bf4!? 18.g3 Bc7 19.cd5 ed5 20.Nf1–+) 18.Ne5 d4 19.Ndf3 (19.Bf3!? Be5 20.Bb7 Bf4 21.Bc8 Qc8 22.a5–/+) 19...Ne5 20.Ne5 Ne3 21.Qd2? (21.Bf1 Be5 22.fe5 Qg5–+) 21...Qc7 (better is 21...Ng2 22.Rec1 Qf6–+) 22.Bf3 Bf3 23.gf3 Qb7 24.Nc6 (24.Qe2–+) 24...Bf4 25.Qf2 e5 26.Bc1 Rce8 27.Be3 (27.a5 Re6–+) 27...Be3 28.Re3 de3 29.Qe3 Re6 30.Kh1 Rfe8 31.Rg1 Kh8 32.Qe4 Qd7 33.Qg4 g6 (better is 33...f6–+) 34.d4?? (34.Ne5 Qe7 35.f4–+) 34...ed4 (34...cd4?! 35.Ne5 h5 36.Qh3–+) 35.h4 Rd6 36.Qd7 Rd7 37.Kg2 Kg7 38.Rf1 Re2 39.Kg3 Re3 40.Rf2 f5 41.h5 g5 42.Nb8 Rf7 0–1. aniabielak – paco1999 (1630), internet, 2012.

7.Qc2 a6 8.Nf3 ab5 9.Ng5 g6 10.cd5 ed5 11.Bb5 Bf5 12.Qb3 Nc6 13.Nc3 c4 14.Qa2 Nb4! 15.ab4 Ra2 16.Ra2 Bb4 17.0–0 d4 18.ed4 Bc3 19.Bc3 Qd5 20.Rb2 Bd3 21.Nf3 Bf1 22.Kf1 Ne4 23.Ne5 Ra8 24.Bc4 (24.f3 Nd6 25.Ng4–+) 24...Nc3 25.dc3 Ra1 26.Ke2 Qe4 27.Kd2 Qe1 28.Kc2 Qd1 0–1. combijack (1840) – mlacunza (1765), gameknot.com, 2013.

7.Qc2 b6 8.Nf3 Bb7 9.Ng5 Nbd7 10.Nc3 h6 11.Nf3 Qc7 12.Rc1 dc4 13.Ne2 Ne5 14.Ne5 Be5 15.Be5 Qe5 16.Qc4 Rac8 17.Qa4 Rfd8 18.f3 Rd7 19.Rd1 Rcd8 20.Qc2 Nd5 21.Kf2?? Ne3!–+ 22.de3 Rd1 23.f4 Qa1 24.Rg1 Qa3 25.g4 R8d2 (26.Bh3 Rc2 27.Rd1 Qb2–+) 0–1. Franek,Mieczyslaw – Struk,J, Krakow, 1991.

7.Qc2 Nbd7 8.Nf3 Re8 9.Nc3 Ne5 10.Ne5 Be5 11.Be2 b6 12.f4 Bc7 13.0–0 Bb7 14.h3 e5 15.fe5 Be5 16.Bf3 Rb8 17.cd5 Nd5 18.Nd5 Bd5 19.Be5 Re5 20.Qc3 Qe7 21.Rf2 Rd8 22.Raf1 Rf5 23.Bd5 Rfd5 (better is 23...Rf2!? 24.Rf2 Rd5=) 24.Qc4+/– (worse is 24.Rf7 Qf7 25.Rf7 Kf7=) 24...R5d7 (24...Rd2?? 25.Rf7 Rg2 26.Kg2 Qg5 27.Kh2+–) 25.a4 (better is 25.Rf7!? Qf7 26.Rf7 Rf7 27.d4 cd4 28.ed4+=) 25...Rf8 (25...Rd2?? 26.Rf7 Rg2 27.Kg2 Qg5 28.Kh2+–) 26.Qg4 Qd6 27.h4 Re7 28.h5 h6 29.Rc1 Qd5 30.Rc4 Re5 31.Rcf4 Rg5 32.Rf5 Qf5 33.Qf5 (33.Rf5?? Rg4 34.Rf4 Rf4 35.ef4 Rd8–+) 33...Rf5 34.Rf5 Rd8 35.Rf2 Rd5 36.g4 Kf8 37.Kf1 Ke7 38.Ke2 Ke6 39.Rf4 f5 40.e4 fe4 41.Re4 Re5 42.Ke3 Kd5 43.Re5 Ke5 44.d3 Kd5 45.Kf4?? (45.Ke2 Kd4 46.Kd2–+) 45...Kd4–+ 46.Kf5 Kd3 47.Kg6 c4 48.Kg7 c3 49.g5 (49.Kh6 c2 50.g5 c1Q–+) 49...hg5 50.h6 c2 51.h7 c1Q 52.h8Q Qc3 (52...Qc3 53.Kh7 Qh8 54.Kh8 g4–+) 0–1. combijack (1720) – mcbond (1780), gameknot.com, 2012.

7.Qc2 Nbd7 8.Nf3 Re8 9.Be2 e5 10.cd5 e4 11.Ng5 h6 (worse is 11...Nd5 12.Ne4 Ne5 13.Nbc3+/–) 12.Nh3 Nd5 13.f4 N7f6 14.Nf2 Bf5 15.Nc3 The pressure on e4 grows 15...Rc8 16.Bc4 Nc3 17.Bc3 Bc7 18.Qb2 Ba5 19.Bf6 Qf6 20.Qf6 gf6 21.Rc1 (better is 21.g4!? Bh7 22.0–0–0+=) 21...Red8 Attacks the backward pawn on d2 22.Rc2 Bg6 23.g4 f5 24.Rg1 Kf8 25.h4 White plans g5 25...Rd6 26.h5 Bh7 27.g5 Rcd8 28.gh6 Rh6 (worse is 28...Bd2 29.Ke2 Ba5 30.Bf7 Rh6 31.Bb3=) 29.Rg5 Rhd6 30.Nh3 Rd2 31.Rd2 Rd2 32.Kf1 Rc2 33.Bd5 Rc3 34.Rg3 Ra3 (34...Rc1 35.Ke2 Re1 36.Kf2–/+) 35.Bb7?? (better is 35.Ng5 Bg8 36.h6 (36.Bb7? Ra1 37.Kg2 Be1–+) 36...Ra1 37.Kg2=) 35...c4 36.Ng1?? (36.Rg2 Ra1 (36...Re3?! 37.Ng5 Re1 38.Kf2–+) 37.Kf2 Be1 38.Kf1 Bh4 39.Ke2 c3–+) 36...c3 (better is 36...Ra1 37.Kf2 Be1 38.Kg2 Bg3–+) 37.Ne2 c2 38.Kf2 Ra1 39.Rg1 Rg1 (better is 39...Rd1 40.Rf1 Bb6–+) 40.Kg1 Bd2 (40...Bd2 41.Kf2 Kg7–+) 0–1. combijack (1915) – vekiv (2025), gameknot.com, 2013.

7.Qc2 h6 8.Nf3 Nbd7 9.h3 b6 10.cd5 ed5 11.Bd3 Bb7 12.a4 Rc8 13.Kd1 Re8 14.Ne1 Ne5 15.f4? Nd3–+ 16.Qd3 Ne4 17.Rf1 Qh4 18.Kc1 Re7 19.Nc3 Nc3 20.Qc3 d4 21.Qb3 c4 22.Qd1 de3 23.de3 Re3 (24.Qd6 Re1 25.Re1 Qe1 26.Qd1 Qg3–+) 0–1. Van Oosterom,Chiel – Van der Velden,Bram, NED U12 op Hengelo, 1999.

7.Bd3 b6 8.Nf3 a6 =+.

7.Bd3 b6 8.Nf3 Bb7 9.Ng5 Nbd7 10.Qc2 h6 11.Nf3 Qc7 12.Nc3 dc4 13.Bc4 Ne5 14.Be2 Nf3=+ 15.Bf3 Bf3 16.gf3 Bh2 17.0–0–0 Rfd8 18.f4+= Bf4 19.ef4 Qf4 20.Rhf1 Rd7 21.Ne2= Qf3 22.Ng1 Qd3 23.f3 Rad8 24.a4 c4 25.Rf2 Nd5 26.Ne2? Nb4 27.Qb1 Qe3!! 28.Bd4 Rd4 29.Qb4 Qf2 30.Nd4 Qd4 31.Qa3 Qd3 32.Qc3 Qc3 33.dc3 Rd1 34.Kd1 h5 35.Ke2 g5 36.Kf2 Kg7 37.Kg3 Kg6 38.Kh3 f5 39.Kg3 h4 40.Kh3 Kh5 41.Kh2 g4 42.f4 Kg6 43.Kg2 Kf6 44.Kh2 e5 45.fe5 Ke5 46.Kg2 Ke4 47.Kf2 h3 (48.a5 ba5–+) 0–1. O'Brien,E – Meux,D, Flagstaff op, 1991.

7.Bd3 Nbd7 8.Nf3 =+.

7.d4 cd4 8.Bd4 Ne4 9.Qg4 e5 0–1. Ritter,F – van de Born,J, 1999.

7.Nf3 a6 8.a4 d4 9.Bd3 e5 10.e4 Bc7 11.h3 Ba5 12.Ne5 Re8 13.f4 Nbd7 14.Nf3 Nh5 15.f5? (better is 15.0–0!? Nf4 16.Qb3–/+) 15...Ng3–+ 16.Rg1 Ne4 17.Be4 Re4 18.Kf2 Ne5 19.Re1? (better is 19.Ne5 Re5 20.Re1 Re1 21.Qe1 Bf5 22.Kg1–+) 19...Nd3 20.Kg1 Ne1 (20...Nb2?! 21.Qc2 Re1 22.Ne1–+) 21.Ne1 Qd6 22.Nf3 Bf5 23.d3 (23.Qf1 Qg6 24.Kh1 Rae8–+) 23...Re3 24.Nbd2 Bd3 25.Nf1 Be2 Black plans d3 26.Qc2 d3 27.Qc1 (27.Qb3 Ree8 28.N3d2 Bf1 29.Nf1 Re2–+) 27...Rf3 28.gf3 d2 29.Nd2 (29.Qc2–+) 29...Qg3 30.Kh1 Bc7 31.Nf1 Bf3 mate 0–1. Rush,Bradley – Minte,Dieter (2355), OP–2012–0–02221, 2012.

7.Nf3 b6 8.Qc2 a6 9.Nc3 =+.

7.Nf3 b6 8.Qc2 Bb7 9.Nc3 dc4 10.Bc4 Qc7 11.Ng5 h6 12.h4 Nbd7 13.0–0–0 Ne5 14.Be2–+ Qe7 15.f4 Ned7 16.Bf3 Bf3 17.gf3 c4–+ 18.a4 Ba3 19.Rdg1 Bb2 20.Kb2 Nc5 21.Nge4 Nd3 22.Ka1 a6 23.Nf6 Qf6 24.Rg2 ab5 25.Kb1 Qe7 26.Qa2?! Qb4 27.Kc2 ba4 28.Ne4 f5 29.Rhg1 Rf7 30.Nf2 Rd7 31.Nd3 cd3 32.Kd1 Qb3 33.Qb3 ab3 34.Kc1 Ra2 35.Kb1 Rc2 (36.Rc1 Rdc7–+) 0–1. Tomisek,Petr – Zahalka,Frantisek, corr, 1971.

7.Nf3 b6 8.d4 a6 =+.

7.Nf3 b6 8.Be2 Bb7 9.0–0 dc4 10.Bc4 Nbd7 11.d4 Qc7 12.Nbd2 Rad8 13.h3 h6 14.Rc1 Rfe8 15.Nb3 Qb8 16.Qe2 Qa8 17.Nbd2 Ne4 18.Ne4 Be4 19.Rfd1 Bf3 20.gf3 Nf8 21.e4 Ng6 22.Qe3 Bf4 23.Qe2 Bc1 24.Rc1 cd4 25.Rd1 Nf4 26.Qf1 e5 27.Kh2 Qc8 28.Bb3 Qd7 29.Qc4 Qh3 0–1. brozal – leman7 (1695), playok.com, 2013.

7.Nf3 Bd7 8.Be2 Be8 (8...a6 9.Nc3+=) 9.0–0 Nbd7 10.cd5 ed5 11.Nc3 Ne5 Black prepares the advance c4 12.Ne5 Be5 13.Na4 Bb2 14.Nb2 c4 15.a4 Qa5 16.Qc2 Ne4 Black prepares c3 (16...a6!? 17.ba6 Ra6=) 17.Rfd1 (17.Nc4!? Qc7 18.d3+/–) 17...c3 18.dc3 Nc3 19.Rd3 (better is 19.Qd2 Rc8 20.Bf3+=) 19...Ne4?? (better is 19...Ne2 20.Qe2 Bb5+=) 20.Rd5+– Nc3 21.Rc5 (21.Nc4!? Ne2 22.Qe2 Qc3+–) 21...Ne2+/– 22.Qe2 Qb6 23.Rac1 Bd7 24.Nc4?? Qc5–+ 25.Na5 Qc1 26.Qf1 Qf1 27.Kf1 a6 28.Ke1 ab5 29.Nb7 ba4 30.Kd1 a3 31.Nc5 a2 32.Nb3 Rfb8 33.Na1 Rb1 (33...Rb1 34.Kd2 Ra1 35.Ke2 Re1 36.Kd3 a1Q 37.Ke4 Re8 38.Kd3 Bb5 39.Kc2 Rc8 40.Kd2 Qc3 mate) 0–1. Neumann,Frank – Lombardi,Donato, RN–2012–0–00477, 2012.

6.c4 Nbd7

7.a4 b6 8.Nf3 Bb7 9.Na3 0–0 10.Be2 Qc7 11.h3 Rfe8 12.d4 (12.0–0!?+=) 12...cd4–/+ 13.Bd4 Bb4 14.Kf1 e5 15.Bb2 Rad8 16.Qb3 Bf8 17.cd5 Nc5 18.Qc2 Bd5 19.Nd2 Qb7 20.f3 Nh5 21.Kf2 Qe7 22.g3 Qf6 (22...Qg5 23.Rhg1–/+) 23.Bc4 (23.e4 Qg5 24.Nf1 Bb3–/+) 23...Bb7 24.Be2?? (better is 24.Nab1–/+) 24…Rd2!–+ (24...Rd2 25.Qd2 Ne4 26.Ke1 Nd2 27.Kd2 Bb4 28.Bc3 Bc3 29.Kc3 Ng3–+) 0–1. Kalanyos,Ferenc (2000) – Dudas,Eszter (2085), HUN–chT2 Asztalos, 2007.

7.Qc2 0–0 8.Nf3 Re8 9.Be2 e5 10.cd5 Nd5 11.Nc3 N7f6 12.Nd5 Nd5 13.Qe4 Nf6 14.Qh4 Bf5 15.Bc4 Bg6 16.Qg5 e4 17.Nh4 Kf8 18.Ng6 hg6 19.Rd1 Nh5 20.Qd5 Qe7 21.h4 Rad8 22.g4 Nf6 23.Bf6 gf6 24.Be2 c4 25.Qc4 Ba3 26.h5 Kg7 27.h6 Kh7 28.g5 Bb2 (better is 28...fg5!? 29.Qa4 Bb4–/+) 29.Qa2+= Be5 30.gf6 Bf6 31.Bc4 Rd7 32.Qa7 Bg5 33.Qa1 Bh6 34.Ke2 Qe5 35.Rh3 Qa1 36.Ra1 Red8 37.Ra2 Kg7 38.f4 ef3 39.Rf3 Bg5 40.d4 Re7 41.Kd3 f5 42.Rg2 Bh6 43.Rgg3 Rf8 44.d5 f4 45.ef4 Rf4 46.Rh3 Rf3 ˝–˝. combijack (1910) – romast (1830), gameknot.com, 2013.

7.d3 0–0 8.Nf3 Qc7 9.Nbd2 b6 10.Be2 Bb7 11.h3 Rad8 12.Rc1 Ne5 13.d4 Nf3 14.Nf3 Qe7 15.0–0 dc4 16.Qc2 (16.Qa4 Rc8=) 16...Rc8 (16...Bf3 17.Bf3 cd4 18.ed4 Ba3 19.Ba3 Qa3 20.Qc4–/+) 17.Qa4 Rc7 18.Qc4 Rfc8 19.dc5 Rc5 20.Qa2 Ne4 21.Rc5 Rc5 22.Qa1 f6 23.Nd4 Bb8 24.a4 (24.Rd1 Bd5=) 24...Qc7 25.f4 Bd5 26.Bg4 f5 27.Bf3 Qf7 28.Rc1 Bd6 29.Ba3 Rc1 30.Qc1 Ba3 31.Qa3 Nc5 ˝–˝. Schmidbauer,Josef (1660) – Fruehauf,Norbert (1955), Niederbayernliga, 2004.

7.Nf3 0–0 8.Nc3 =+.

7.Nf3 b6 8.d3 Bb7 9.Nbd2 0–0 10.Qc2 Qe7 11.Be2 Rad8 12.a4 Bb8 13.g4 Ng4–/+ 14.Rg1 Nge5 15.0–0–0 g6 16.h4 dc4 17.dc4 Nf3 18.Bf3 Ne5 19.Bb7 Nd3 20.Kb1 Qb7 21.h5 Be5 22.Be5=+ Ne5 23.Rg3 Qd7?? 24.f4+/– Nd3 25.Ne4 Qb7 26.Nf6 (26...Kg7 A) 27.Rd3? Qh1 (27...Kf6?! 28.Rd8 Rd8 29.hg6 hg6 30.Rh3–/+) 28.Ka2 Rd3 (28...Kf6?! 29.Rd8 Rd8 30.hg6 hg6 31.e4–/+) 29.Qd3 Qh2 (29...Kf6?! 30.e4=+) 30.Kb3 Qg3–+ (30...Kf6?! 31.e4=+); B) 27.Nh7 Kh7 28.hg6 (28.Rd3? Qh1 29.Kb2 Rd3–+) 28...Kg7 29.Rd3 Rd3 30.gf7 Kf7 31.Qd3 Qh1 32.Kc2 Qh2 33.Qd2 Qg3 34.Qd7 Kf6 35.Qd6–+; < 26.Rd3 Qe4 27.Rd8 Qc2 28.Kc2 Rd8=+) 1–0. Franek,Mieczyslaw – Laber,Seweryn, corr 1. AMM Poland, 1991.

7.Nf3 b6 8.cd5 ed5 9.Be2 0–0 10.0–0 Bb7 11.d3 Qe7 12.Nbd2 Rfe8 13.h3 d4 14.e4 Bf4 15.Nc4 h6 16.Re1 Nh7 17.Bc1 Bc7 18.Bd2 Nhf8 19.a4 Ng6 20.Qc1 Qf6 21.Nh2 (21.a5 Nf4=) 21...Nde5 (21...Bh2!? 22.Kh2 Qf2+=) 22.Ng4 Ng4 23.Bg4 Ne5 24.Ne5 Qe5 25.g3 Qe7 26.Rf1 (26.a5 ba5 27.Ba5 Ba5 28.Ra5 Qc7+=) 26...Bc8 27.Bc8 Rec8 28.Qc4 Qe6 29.Qe6 fe6 30.f4 Rf8 31.Kf2 g6 32.Ke2 Kg7 33.a5 h5 34.ab6 ab6 35.Ra6 Ra6 36.ba6 Ra8 37.Ra1 Ra7 38.Kf3 Kf6 39.g4 Bb8 40.e5 Kg7 41.Ke4 Kf7 42.f5 hg4 43.hg4 ef5 44.gf5 gf5 45.Kf5 Re7 46.Bf4 Ba7? 47.Rh1 b5 48.Bg5 c4 49.Be7 Ke7 50.Rh7 Kd8 51.Ra7 cd3 52.Rh7 (52.Rh7 Ke8 53.a7 d2 54.a8Q#) 1–0. De Kruif,Kees (2075) – Garcia,Mario, Gibraltar Challengers Week2, 2007.

7.Nf3 Nb6 8.Qc2 0–0 9.Ng5 g6 10.h4 h6 11.h5? (better is 11.Nf3!?+=) 11...hg5–+ 12.hg6 e5 (12...Nc4 13.g7 Nb2 14.gf8R Bf8 15.Qb2+=; 12...dc4? 13.g7 e5 14.gf8R Qf8 15.a4+–) 13.gf7 Kf7 14.Rh6 Ke7 15.Qg6 Qd7 16.Qg5 Qg4 (16...Nc4?! 17.Bc4 dc4 18.Be5 Be5 19.Qe5 Qe6 20.Qc5 Ke8 21.Nc3+=) 17.Rh7 Rf7 18.Rf7 Kf7 19.Qh6? (better is 19.Qg4 Bg4 20.cd5–+) 19...Nc4 20.Bc4 dc4 21.Nc3 (21.Qh2–+) 21...Qg2 22.0–0–0 Qh3 23.Qg5 (23.Rh1 Qf3 24.Rg1–+) 23...Bg4 24.e4 Rg8 25.Qe3 Qe3 26.de3 Bd1 27.Kd1 Rg2 (27...Rg2 28.Ke2 Ng4–+) 0–1. combijack (1835) – closeaccount (1845), gameknot.com, 2011.

7.Nf3 e5 8.d3 d4 9.Be2 a6 10.0–0 ab5 11.cb5 0–0 12.a4 Nb6 13.Re1 Qc7 14.Nbd2 (14.a5 Nbd5 15.Qd2 Re8+=) 14...Ra5 15.Qc2 Bf5 (15...Bd7 16.Rec1 de3 17.fe3+=) 16.Rec1 (16.Nb3 Ra4 17.Ra4 Na4 18.Nbd4 cd4 19.Qa4 de3 20.fe3 Qb6+=) 16...Qe7 17.e4 (17.Nb3 Ra4 18.Ra4 Na4 19.ed4 cd4 (worse is 19...Nb2 20.dc5 Nd3 21.Bd3 Bd3 22.Qd3=) 20.Bd4 Rc8 (worse is 20...ed4 21.Nbd4 Bg4 22.Qa4+=) 21.Qc8 Bc8 22.Rc8 Ne8–+) 17...Be6 18.Ng5 Bd7 19.Nc4 Nc4 20.dc4 Ng4 21.Nf3 f5 (21...Be6 22.h3 Nf6 23.Rd1+=) 22.Bd3 Nf6 23.Nd2 f4 (23...fe4 24.Ne4 Bf5 25.Nd6 Bd3 26.Qd2–/+) 24.Nb3 (24.Rd1 Be6+=) 24...Ra7 25.f3 Be6 26.a5 Nd7 27.Qd2 Qe8 28.Re1 Qh5 29.a6 ba6 30.Ra6 Ra6 31.ba6 Qf7 32.Qa5 Bc4 33.Bc4 Qc4 34.Nd2 Qb4 35.Qa2 c4 36.Ba1 Rc8 37.a7 Qa3 38.Qa3 Ba3 39.Nc4 Bc5–+ 40.Bb2 Ba7 41.Rc1 d3 42.Kf1 Bd4 43.Ba3 Rc6 44.Nd6 Rc2 45.Rd1 Rf2 46.Ke1 Rg2 47.Rd3 Rh2 48.Nf5 Kf7 49.Nd4 ed4 50.Bd6 g5 51.Rd4 Ke6 52.Rd5 h6 53.Kf1 Nb6 54.Rd4 Rc2 55.Bf8–/+ Nc4 56.Bh6 Nd2 57.Rd2 Rd2 58.Bg5 Ke5 59.Bh6 Rd7 60.Ke2 Rh7 61.Bg5 Rh2 62.Kf1 Rh5 63.Bd8 Kd4 64.Bb6 Kd3 65.Bf2 Rb5 66.Bg1 Kd2 67.Bd4 Rb4 68.Bg1 Rb1 69.Kg2 Rb3 70.Kf2 Re3 71.Kg2 Ke2 0–1. Trokenheim,Marek (1800) – Deluchey,Jean_Philippe (1700), FICGS, 2008. (=1.c4 Nf6 2.b4 e6 3.a3 d5 4.e3 c5 5.b5 Bd6 6.Bb2)

7.f4 e5 8.fe5 Be5 9.d4 Bd6 10.Nf3 dc4 11.Bc4 Nb6 12.Nbd2 Qe7 13.Qe2 0–0 14.0–0 Re8 15.Ne5 Nc4 16.Ndc4 Be6 17.Nd6 Qd6 18.dc5 Qc5 19.Rac1 Qe7 20.Qf3 Bd5 21.Qg3 g6 (better is 21...Ne4!? 22.Qg4 f6=) 22.Ng6 hg6 23.Bf6 Qe3 24.Qe3 Re3 25.Rfd1 Be6?? (better is 25...Be4 26.Rd4 Re8+/–) 26.Rd4+– Ra3 (26...Bg4 27.Rg4 Re6+–) 27.Rh4 Rh3 28.gh3 Bh3 (28...a6 29.Rh8) 29.Rh8 1–0. Romsdal,Svein Erik – Rasmussen,Rikard, Alta ASKO Hostturnering, 2004.

6.Nf3 0–0

7.c4 dc4 8.Bc4 a6 9.Nc3 b6 (9...e5 10.d3=) 10.Qc2 (10.d4 Nbd7=) 10...ab5 (10...Bb7 11.Rd1+=) 11.Bb5 (11.Nb5 Be7=) 11...Bd7 (11...Bb7 12.0–0+=) 12.Bd7 (12.0–0 Bc6=) 12...Qd7 (12...Nbd7 13.Nb5 Be7 14.0–0=) 13.Ne4 (13.Ng5!? Qc6 14.Nce4 Ne4 15.Qe4 Qe4 16.Ne4=) 13...Ne4+= 14.Qe4 Ra4 15.Qc2 b5 16.0–0 (16.d3 Rd8+=) 16...Nc6 (16...c4 17.Rfb1+=) 17.Rfd1 Rfa8 18.Ng5 Rh4 (18...f5 19.d3+=) 19.g3 (19.f4 Ra4+=) 19...Rh5 20.Ne4 Be7 (20...Ra4 21.d3+=) 21.Qc3 (21.d3 Ra5+=) 21...e5–/+ 22.Nc5 (22.h4 Qd5 23.Qc2 Na5+=) 22...Qh3 23.d3 (better is 23.Nb3 Qh2 24.Kf1–+) 23...Bc5–+ 24.Qc5 e4! (worse is 24...Qh2 25.Kf1 e4 26.Qc3 Qh1 27.Ke2 Qf3 28.Kd2 Qf2 29.Kc1 Qe3 30.Kb1–+) 25.Qc3 (25.de4 Qh2) 25...Ne5 26.Qe5 Qh2 27.Kf1 Re5 28.Be5 ed3 (28...ed3 29.Rd3 Qh1 30.Ke2 Qh5 31.Ke1 Qe5–+) 0–1. Recio,Luis – Poulsen,Rene (2080), TE.2004.P.01714, 2004.

7.c4 Bd7 8.Nc3 a6 9.a4 ab5 10.ab5 Ra1 11.Qa1 dc4 12.Bc4 Nd5? (better is 12...e5=) 13.Nd5+– ed5 14.Bd5 Bb5 15.Bg7 Re8 16.Bh8 (better is 16.Bb7 Nc6 17.Bc6 Bc6 18.Bh6+–) 16...Kf8?? (better is 16...Bf8 17.Qb1 Qd5 18.Qb5 Qd7 19.Qd7 Nd7+/–) 17.Qg7 Ke7 18.Qf7 1–0. roy1nc6 (1885) – romast (1700), gameknot.com, 2013. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.a3 c5 5.b5 Bd6 6.e3 0–0 7.c4 Bd7)

7.c4 Bd7 8.Be2 a6 9.Nc3 +=.

7.c4 Bd7 8.Be2 Be8 9.0–0 Nbd7 10.cd5 ed5 11.Nc3 Ne5 Black prepares the advance c4 12.Ne5 Be5 13.Na4 Bb2 14.Nb2 c4 15.a4 Qa5 16.Qc2 Ne4 Black prepares c3 (16...a6!? 17.ba6 Ra6=) 17.Rfd1 (17.Nc4!? Qc7 18.d3+/–) 17...c3 18.dc3 Nc3 19.Rd3 (better is 19.Qd2 Rc8 20.Bf3+=) 19...Ne4?? (better is 19...Ne2 20.Qe2 Bb5+=) 20.Rd5+– Nc3 21.Rc5 (21.Nc4!? Ne2 22.Qe2 Qc3+–) 21...Ne2+/– 22.Qe2 Qb6 23.Rac1 Bd7 24.Nc4?? Qc5–+ 25.Na5 Qc1 26.Qf1 Qf1 27.Kf1 a6 28.Ke1 ab5 29.Nb7 ba4 30.Kd1 a3 31.Nc5 a2 32.Nb3 Rfb8 33.Na1 Rb1 (33...Rb1 34.Kd2 Ra1 35.Ke2 Re1 36.Kd3 a1Q 37.Ke4 Re8 38.Kd3 Bb5 39.Kc2 Rc8 40.Kd2 Qc3 mate) 0–1. Neumann,Frank – Lombardi,Donato, RN–2012–0–00477, 2012.

7.c4 Bd7 8.h3 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Ne4 12.Qa4 Na6 13.d3 Nf6 14.Ne5 Be5 (14...Nb4!?=) 15.Be5+= Nb4 16.Be2 dc4 17.dc4 Ne4 18.0–0 f6 19.Bh2 (19.Nc3 Nd2 20.Rd1 Bb5 21.Qb5 fe5 22.Qb7 Qf6 23.Rd2 Qf2 24.Kh2 Qe3+–) 19...Qe7 (19...e5 20.Rd1 Qc7 21.f3=) 20.f3 (20.Bf3!? f5 21.Rd1+/–) 20...Nd6+= 21.Rd1 Nf5 (21...Nf7+=) 22.Qb3 (22.g4 Ne3 23.Bd6 Qf7 24.Bf8 Kf8+–) 22...Ra8?? (22...e5 23.Nd2=) 23.e4?? (better is 23.g4 e5 24.gf5 Bf5 25.e4+–) 23...Nd4= 24.Qe3 Nbc2 25.Qd2 Ne2 26.Qe2 Nd4 27.Qd3 e5 28.f4 Be6 29.fe5 fe5 30.Be5 Rd8 31.Qg3?? Ne2–+ (31...Ne2 32.Kh2 Ng3 33.Rd8 Qd8 34.Bg3 Qd3–+) 0–1. Rush,Bradley – Lombardi,Donato, OP–2012–0–02221, 2012.

7.c4 Qe7 8.Nc3 (8.Bf6 Qf6 9.Nc3 Be5 10.Ne5 Qe5=) 8...b6 9.Be2 Bb7 10.Qb3 Nbd7 11.d3 Consolidates e4 11...Rfd8 12.h3 Controls g4 12...Ne5 13.Ne5 Be5 14.Bf3 (14.0–0 dc4 15.dc4 Ne8+=) 14...dc4 (14...Bc3 15.Qc3 dc4 16.dc4+=) 15.Qc4 (15.dc4 Bc3 16.Bc3 Bf3 17.gf3 Ne8–/+) 15...Bf3 16.gf3 Nd5 (16...Ne8 17.Rg1+=) 17.Nd5 (17.Rg1 Nc3 18.Bc3 Qf6 19.Be5 Qe5+=) 17...ed5–/+ 18.Qc2 (18.Qc1 Qf6 19.Be5 Qe5–/+) 18...Rac8 (18...Re8 19.Ke2–/+) 19.Rc1 (19.Qd2 Bb2 20.Qb2 d4–+) 19...c4 (19...d4!? 20.Qe2 Re8–+) 20.Be5 Qe5 21.d4 Qf6 22.Ke2 (22.f4 Re8 23.0–0 Qe6+=) 22...Re8 23.Qc3 Rc7 (23...Ra8 24.Rhg1–/+) 24.Rhg1 (24.a4!?–/+) 24...Rce7 25.Rg3 Qe6 (25...Qh4!? 26.Rcg1 f5 27.Rg5–+) 26.Rcg1 f5 27.Rg5 Qh6?? Black threatens to win material: Qh6xh3. Black lets it slip away 28.R1g2?? gives the opponent new chances 28...Qh3–+ 29.Qc2? f4 30.Qf5 Qf5 31.Rf5 fe3 32.Rd5 ef2 33.Kf2 Re2 34.Kg3 Rg2 35.Kg2 c3 36.Rh5 Rd8 37.Kf2 Rd4 38.Ke3 0–1. Jovanovic,Momir (1955) – Aicher,Hans (1745), Regionalliga SW, 2002. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.a3 Bd6 5.e3 0–0 6.c4 c5 7.b5)

7.d3 Qa5 8.Nbd2 +=.

7.d3 Re8 8.Nbd2 e5 9.c4 d4 (9...e4 10.de4 de4 11.Ng5+=) 10.e4 Kh8 (10...a6 11.ba6 Ra6 12.Be2+=) 11.Be2 Ng8 (11...a6 12.a4+=) 12.0–0= f5 (12...Nf6 13.Rb1=) 13.a4 (13.ef5 Bf5 14.Ne4 a6=) 13...Bc7 (13...a6 14.ef5 Bf5 15.Ne4=) 14.Bc1 (14.Ba3 Qe7=) 14...Nf6 15.Ng5 Qe7 (15...Kg8 16.ef5 Bf5 17.Nde4=) 16.ef5 Bf5 17.Bf3 (17.a5 e4 18.de4 Be4 19.Nge4 Ne4 20.Ne4 Qe4+–) 17...Ba5 (17...Bd3 18.Bb7 Bf1 19.Ba8=) 18.Nde4+= h6 (18...Rf8 19.Nf6 gf6 20.Ne4+=) 19.Nf6 (19.Nd6 hg5 20.Nf5 Qd7+/–) 19...gf6+= 20.Ne4 Kh7 (20...Kg7 21.Ng3 Be6 22.Bd5+/–) 21.Ng3 (21.Nc5 Qc5 22.Bb7 Nd7+–) 21...Bg6+= 22.Qe2 (22.Bh5 Rg8+=) 22...f5 (22...Bc3 23.Rb1 f5 24.Bd5+=) 23.Bh5 Qf7 24.Bg6 Qg6 25.f3 (25.Qf3 e4 26.Qf5 Qf5 27.Nf5 Bc3+=) 25...Nd7 26.Bd2 ˝–˝. Resch – Goller,Sebastian, NB MII Germany, 1993.

7.Be2 Nbd7 8.0–0 b6 9.c4 Bb7 10.Nc3 Ne5 (10...dc4 11.Bc4 Ng4 12.Be2+=) 11.Ne5= Be5 12.Na4 (12.f4!? Bd6 13.Bf3=) 12...Bb2+= 13.Nb2 Qe7 (13...a6 14.ba6 Ba6 15.Qc2+=) 14.cd5 ed5 15.d4 (15.Qc2 h6+=) 15...Rac8 16.dc5 bc5 17.a4 (17.Bf3 Ne4+=) 17...Qe5 (17...Ne4 18.Bf3+=) 18.Nd3 Qg5 (18...Qd6 19.Rc1+=) 19.Bf3 (19.f4 Qf5=) 19...h5 (19...Rfe8 20.Qd2=) 20.a5 (20.Qd2 c4 21.Nf4 Qe5+=) 20...Rc7 (20...Rfe8 21.Nf4=) 21.b6+= ab6 22.ab6 Rcc8?? (better is 22...Rc6+=) 23.Ra7+– Rb8 (23...c4 24.Rb7 cd3 25.Qd3+–) 24.Nc5 Bc6 25.Qd4 Ne4 26.Nd7 Bd7 27.Rd7 Nf6 28.Rd6 Ne4 29.Be4 de4 30.Qe4 h4 31.Rd5 Qf6 32.Rf5 Qh6? 33.Rf4 g5 34.Rg4 f5 35.Qc4 Kg7? 36.Qc7 Kg6 37.Rd4 Kh5 38.g4! fg4 39.Qe7?? Rb6= 40.Qe4 Qe6 41.Qe6 Re6 42.Kg2 h3 43.Kg1 Rf3 44.e4 Ref6 45.e5 Re6+= 46.Re4 Rf4 47.Ree1 Rf5 48.Re3 Rfe5 49.Rfe1?? Re3–+ 50.Re3?? Re3 51.fe3 Kg6 52.Kf2= Kf5 53.Ke2?? Ke4 54.Kf2= ˝–˝. Neumann,Frank – Molina,Vicente Andres, OP–2012–0–02287, 2012.

7.Be2 Qe7 8.0–0 Nbd7 9.c4 dc4 10.Bc4 Nb6 11.Ba2 Bd7 12.a4 a6 13.Ne5? (13.Nc3 ab5 14.ab5 c4+=) 13...ab5 (13...Be5 14.Be5 ab5–/+) 14.ab5? (better is 14.Nd7 Nfd7 15.ab5+=) 14...Bb5–+ 15.Re1 Na4 16.Nf3? (16.Qc2–+) 16...Nb2 17.Qb3 Bh2! 18.Nh2 (18.Nh2 Nd3 Combination; 18.Kh2 Nd3 Combination) 18...Nd3 19.Rd1 (19.Nc3 Bc6 20.Reb1 Qd6–+) 19...Ba4 20.Qd3 Bd1 21.Nc3 Bh5 22.Qc4 (22.Qb5 Rfd8 23.Qb2 Ra5–+) 22...Rfd8 23.d4 (23.Nf1–+) 23...cd4 24.ed4 (24.Nb5 d3 25.Rf1 Be2–+) 24...Rdc8 25.Qb3 Qa3 26.Qa3 Ra3 27.Nb5 Ra5 28.Nd6 Rc2 29.Nf3 (29.Nf1 Raa2 30.Ra2 Ra2 31.Nb7 Ra4–+) 29...Bf3 30.gf3 Raa2 31.Ra2 (31.Rb1 Rf2 32.Ra1 Ra1 33.Kf2 b6–+) 31...Ra2 32.Nb7 Nd5 (32...Nh5 33.Nd6–+) 33.Nc5 (33.Nd6 Nf4–+) 33...Nf4 34.Nd7 h5 35.Ne5 Ra1 36.Kh2 Rf1 37.Kg3 g5 38.Nc4 Rh1 39.Ne3 Rh3# 0–1. Neumann,Frank (1650) – Boxberg,Marc (2045), RS–Pyramide remoteschach.de, 2009.

7.Be2 Re8 8.0–0 e5 9.d4 e4 (better is 9...cd4!? 10.ed4 e4–/+) 10.Nfd2+= c4 11.Nc3 Bc7 12.Re1 Be6 13.Nf1 Nbd7 14.f3 Ba5 15.Ng3 Nb6 (15...h5 16.fe4 Bc3 17.Bc3–/+) 16.a4+= Qd7 17.fe4 de4 18.Rf1 (18.Nge4 Ne4 19.Ne4 Be1 20.Qe1 Bd5–/+) 18...Bc3 19.Bc3 Nbd5 20.Qd2 Rac8 21.Rf2 (21.Bd1 Bg4+=) 21...Bg4–/+ 22.Raf1 (22.Bf1 h5–/+) 22...Be2+= (22...Nc3?! 23.Bg4 Qg4 24.Qc3=) 23.Re2 (23.Ne2!? Ng4 24.Rf7–+) 23...a6–/+ 24.ba6 ba6 25.a5 Qc7 26.Qe1 Rb8 27.Rf5 (27.Ref2 Rb5–/+) 27...Rb5 28.Qd2 (better is 28.Re5 Reb8 29.Bd2–+ (29.Ne4?? Ne4 30.Re4 Rb1–+)) 28...Reb8 29.Re1 Nc3 (better is 29...h5!?–+) 30.Qc3–/+ Nd5 31.Qd2 g6 32.Rg5 c3 (32...Qd8!? 33.Re5 c3–/+) 33.Qf2+= Re8 (33...h6 34.Re5 f5 35.Rf1=) 34.Rg4 (34.Rf1 Re6 35.Nh5 Qd7=) 34...Ra5+= 35.Re4 Re4 36.Ne4 Qe7 37.Nc5 Ra2 38.Nd3 (38.g3 Nb4 39.Re2 a5+=) 38...a5 39.e4 (39.Qf3!? Nb4 40.Qa8 Qf8 41.Qe4 Nc2 42.Rc1–/+) 39...Nb4–/+ 40.Nb4 ab4 (worse is 40...Qb4 41.e5=) 41.Qf4?? (better is 41.Qe2–/+) 41...Rc2–+ 42.Qb8 Kg7 43.d5 Rd2 44.Qc8 c2 45.Qg4 Rd5 46.Qe2 Rc5 47.Rc1 b3 48.Qe3 b2 49.Qd4 Qe5 50.Qe5 Re5 0–1. Kozlowski,Pawel – Barseghyan,Armen Ash, Al–Ain UAE, World ChampionshipU10, 2013.

7.c4 a6

8.a4 b6 9.d4 =+.

8.a4 d4 9.Bd3 e5 10.e4 Bc7 11.h3 Ba5 12.Ne5 Re8 13.f4 Nbd7 14.Nf3 Nh5 15.f5? (better is 15.0–0!? Nf4 16.Qb3–/+) 15...Ng3–+ 16.Rg1 Ne4 17.Be4 Re4 18.Kf2 Ne5 19.Re1? (better is 19.Ne5 Re5 20.Re1 Re1 21.Qe1 Bf5 22.Kg1–+) 19...Nd3 20.Kg1 Ne1 (20...Nb2?! 21.Qc2 Re1 22.Ne1–+) 21.Ne1 Qd6 22.Nf3 Bf5 23.d3 (23.Qf1 Qg6 24.Kh1 Rae8–+) 23...Re3 24.Nbd2 Bd3 25.Nf1 Be2 Black plans d3 26.Qc2 d3 27.Qc1 (27.Qb3 Ree8 28.N3d2 Bf1 29.Nf1 Re2–+) 27...Rf3 28.gf3 d2 29.Nd2 (29.Qc2–+) 29...Qg3 30.Kh1 Bc7 31.Nf1 Bf3 mate 0–1. Rush,Bradley – Minte,Dieter (2355), OP–2012–0–02221, 2012.

8.a4 Nbd7 9.Na3 Re8 10.d3 d4 11.Nc2 e5 12.Be2 Nf8 13.Nd2 Ng6 14.0–0 Bf5 15.Re1 Qc7 16.Nf1 Rad8 17.Ng3 Bc8 18.Bf3 e4 19.Ne4 Bh2 20.Kh1 Ne4 21.Be4 de3 22.Re3= Bf4 23.Re1 Ne5 24.Ne3 Qe7 25.g3=+ Be3 26.Re3 Bg4 27.Qe1+= Qg5 28.Kg2?? Nd3–/+ 29.Rd3 Rd3–+ 30.Bd3 Re1 31.Re1 Be6 32.Bc3 ab5 33.ab5 h5 34.Re5 Qc1 35.Be1 Bg4?? (36.Re8#; better is 35...Kf8 36.b6 Qd1–+ (36...Bc4?! 37.Rc5 Qe1 38.Rc8 Ke7 39.Rc4–+)) 0–1. Minaya,Juan M (2295) – Moreno,Alejandro (2415), Espe Cup Ecuador, 1999.

8.Qc2 ab5 9.cd5 ed5 10.Bb5 Nc6 11.Ng5 g6 12.h4 Bf5 13.Bd3 Bd3 14.Qd3 c4 15.Qc2 Be5 Black prepares the advance d4 16.f4 Bb2 17.Qb2 Ra6 18.h5 (18.Qb7?? Rb6 19.Qb6 Qb6–+) 18...Rb6 19.Qc2 d4 (19...Qe7 20.hg6 fg6 21.Kd1+=) 20.Qc4 de3 21.de3 Na5 22.Qc2 Rc6 23.Qb2 Nc4 24.Qd4 Ne3! 25.Qd8 (25.Qe3 Re8 Pinning (25...Re8 Decoy)) 25...Rd8 26.Kf2 Neg4 27.Kg3 Rd3 28.Nf3 Ne4 29.Kg4 Nf2 30.Kg5?? (30.Kh4 Nh1 31.Nbd2–+) 30...Rc5–+ (30...Nh1?! 31.Nbd2 Rd5 32.Kg4 Rh5 33.Nd4–+) 31.Kf6 (31.f5 Rf5 32.Kh4 Rh5 33.Kg3 Nh1 34.Kg4–+) 31...Kf8 32.Ne5 (32.hg6 Ne4#) 32…Ne4 0–1. combijack (1770) – the_elite_knight (1675), gameknot.com, 2010.

8.d4 cd4 9.Qd4 dc4 10.Bc4 ab5 11.Bb5 Nc6 12.Bc6 bc6 =.

8.cd5 ab5 9.de6 Be6 10.Bb5 Nc6 11.Nc3 Ne5 12.0–0 Bg4 13.Be2+= Nf3 14.Bf3 Bf3 15.Qf3 Qc7 16.Rfc1 Bh2=+ 17.Kf1 Be5 18.d4 cd4 19.ed4 Bd4 20.Nb5 Qb6=+ 21.Nd4 Qb2–/+ 22.Nf5 Nd7 23.Rcb1 Qe5 24.Qg4 Rab8 25.Re1 Qf6?? 26.g3?? Nc5–/+ 27.Kg2 Nd3 28.Rh1 Qc6 29.Kg1?? Qg6 30.Ne7+– Kh8 31.Ng6 fg6 32.f4 Rf6 33.Qe2 Nc5 34.a4 Rbf8 35.Kg2 Nb3 36.Rab1 Nd4 37.Qb2 Nf5 38.Qb7 Ne3 39.Kf3 Nf5 40.a5 Nd4 41.Kg2 g5 42.Rhf1 gf4 43.gf4 Rg6 44.Kf2 Ne6 45.Ke3 Rg3 46.Kd2 Rd8 47.Kc2 Rg2 48.Qg2 Nd4 49.Kc3 Nf5 50.Rbd1 Rc8 51.Kd2 Rc2 52.Ke1 Rg2 53.Rd8 1–0. wlittle (2165) – ibnquasale (1965), net–chess.com, 2005.

7.c4 b6

8.Qc2 a6 9.Nc3 +=.

8.Qc2 Bb7 9.Nc3 dc4 10.Bc4 Qc7 (10...Nbd7 11.Rd1+=) 11.Ng5 (11.d3 Rd8=) 11...h6 (worse is 11...Bh2 12.Nce4 Ne4 13.Ne4+/–) 12.h4 (12.Nge4 Ne4 13.Ne4 Be5= (13...Bh2? 14.g3+–)) 12...Nbd7 (better is 12...Rd8 13.Nge4 Be5+=) 13.0–0–0 (better is 13.Nge4!?+=) 13...Ne5 (13...a6 14.Nge4–/+) 14.Be2–+ Qe7 (14...c4!?–+) 15.f4 (15.Nge4 Ne4 16.Ne4 a6 17.Nd6 Qd6 18.ba6 Ba6 (18...Bg2? 19.Rhg1+–; worse is 18...Ra6 19.d4 cd4 20.Rd4+/–) 19.Ba6 Ra6+=) 15...Ned7 (15...hg5 16.fe5 g4 17.ef6 Qf6 18.Ne4 Be4 19.Qe4+– (19.Bf6?! Bc2 20.Kc2 gf6+=)) 16.Bf3 (16.Nge4 Rfd8–/+) 16...Bf3 (worse is 16...hg5 17.Bb7 gf4 18.Ba8 Ra8 19.ef4 Bf4 20.g4=) 17.gf3 (17.Nf3 a6–/+) 17...c4–+ (17...hg5 18.hg5 Rfd8 19.Rh3+/– (worse is 19.gf6 Nf6 20.Rdg1 c4+–)) 18.a4 Ba3 (18...hg5 19.hg5 Ba3 20.gf6 Bb2 21.Qb2 Qf6 22.Rh2+=) 19.Rdg1 (19.Nge4!?–+) 19...Bb2 (19...hg5?! 20.hg5 Bb2 21.Kb2=) 20.Kb2 Nc5 (20...a6 21.ba6 Nc5 22.Kb1–+) 21.Nge4 Nd3 22.Ka1 a6 23.Nf6 (23.Rh2 Kh8–+) 23...Qf6 24.Rg2 (24.ba6 Ra6 25.Kb1 Qe7–+) 24...ab5 25.Kb1 Qe7 (25...Kh8 26.Rhg1–+) 26.Qa2?! (26.Rhg1–+) 26...Qb4 (26...Kh8 27.Rhg1 Rg8 28.Rh1–+) 27.Kc2 ba4 28.Ne4 f5 29.Rhg1 Rf7 30.Nf2 Rd7 31.Nd3 cd3 32.Kd1 Qb3 33.Qb3 ab3 34.Kc1 Ra2 35.Kb1 Rc2 (35...Rc2 36.Rc1 Rdc7–+) 0–1. Tomisek,Petr – Zahalka,Frantisek, corr, 1971.

8.Qc2 Nbd7 9.cd5 ed5 10.Nc3 Re8 11.Be2 Ne5 12.0–0 Nc4 (12...Nf3!? 13.Bf3 a6+=) 13.Nd5+= Nb2 14.Nc3 Bb7 15.Qb2 Ng4 16.h3 Ne5 17.Ne5 Re5 18.f4 Re6 19.Bf3 Qc7 20.Nd5 Qd7 21.Qb3 Rf8 (21...Rd8 22.Bg4 c4 A) worse is 23.Be6 Qe6 (worse is 23...cb3 24.Bd7 Bd5 25.Bc6+/–) 24.Qc4 Bd5+= (worse is 24...Qd5 25.Qd5 Bd5 26.Rfc1+=); B) 23.Qc4=) 22.Qd3 (22.Rad1 Rd8+/–) 22...Bd5 (22...Rd8 23.Nc3 Bf3 24.Rf3 Ree8+=) 23.Qd5 (better is 23.Bd5!? Be7 24.Qf5+/–) 23...Qb5= 24.f5 Rf6 25.g4 Bb8 (25...Rd8 26.Qe4 Rh6 27.Kg2+=) 26.Qa2 (26.d3 Rd6 27.Qc4 Qe8–/+) 26...Qd7 27.Rf2 Rh6 28.Bg2 Be5 29.Rd1 Rd6 30.Qc4 (30.Be4 Qa4 31.Bc2 Qe8–/+) 30...Bf6 (30...Rd3 31.Bc6 Qd6 32.Qa4–/+) 31.Qf4 h6 32.Re2 Re8 33.Qc4 Rd3 (33...Re5!?–/+) 34.Bc6+= Qc6 35.Qd3 Rd8 (better is 35...Qf3!?+=) 36.Qa6+= Qf3 37.Rf1 Qh3 38.Rg2 Kh7? 39.Qa7+/– Rd6? 40.Qf7+– Rd8 41.g5! Bg5 42.f6 Rg8 43.Qb7 Qe6 44.f7 Rf8 45.Rf3 c4 46.Qc7 Be7 47.Rgf2 Bd6 48.Qa7 Bc5 49.Kg2 Qc6 50.Kg1 Ra8 51.f8Q Ra7 52.Qf5 Qg6 53.Qg6 Kg6 54.Rg2 Kh7 55.Rf4 Rc7 56.a4 c3 57.d4 Bd6 58.Rff2= g5 59.Rc2 Kg6= 60.Kf2 h5 61.e4 Bf4 62.Kf3 Kf6 63.Rg1= Bd2 64.Rh1 g4+= 65.Kg3? Kg5–+ 66.d5 h4! 67.Kg2 h3 68.Kf2 Bf4?? 69.Rd1 g3–+ 70.Kf3 g2 71.d6?? Bd6! 72.Rg2 hg2 73.Kg2 c2 74.Rd5 Kf4 75.Rb5 c1Q 76.Rb6 0–1. Frank,Detlev – Schroeder,Raymond (2130), Pinneberg–ch op, 1997. (=1.a3 d5 2.b4 Nf6 3.Bb2 e6 4.e3 c5 5.b5 Bd6 6.c4 0–0 7.Nf3 b6)

8.Nc3 Nbd7 9.Be2 Bb7 (9...dc4 10.Bc4 Bb7 11.d4+=) 10.0–0 (10.cd5 ed5 11.0–0 a6=) 10...Rc8 (10...dc4 11.Bc4 Qc7 12.h3+=) 11.cd5= ed5 12.Qc2 (12.Rc1 Qc7=) 12...Re8 (12...d4 13.Nd1+= (13.ed4? Bf3 14.Bf3 cd4–+)) 13.d4 c4 14.Rfd1 (14.Rfc1 Nb8=) 14...Qc7 (14...a6 15.ba6 Ba6 16.Qf5=) 15.Qf5 Nf8 16.a4 Ng6 (16...Qd7 17.Qd7 N8d7 18.a5=) 17.Ba3 Qe7 (17...Ba3 18.Ra3 Qd6 19.Ra2=) 18.Bd6 Qd6 19.h3 (19.Rdc1 a5=) 19...Rc7 20.Rac1 (20.Qc2 Ne4=) 20...Rec8 (20...Bc8 21.Qc2=) 21.Ne5 Ne7 (21...Re7 22.Ng6 fg6 23.Qc2=) 22.Qf4+= Ng6?? (better is 22...Re8+=) 23.Ng6+– Qf4 24.Nf4 (24.ef4?! hg6 25.Bf3 Re8=) 1–0. Wall,Bill – Greatest, internet, 1997.

8.d3 Bb7 9.Nbd2 Nbd7 10.Be2 Qc7 11.Qc2 Rad8 12.h3 Ne5 13.0–0 dc4 14.dc4 Nf3 15.Bf3 Nd7 16.Bb7 Qb7 17.Nf3 f6 18.a4 a5 19.ba6 Qa6 20.Qe4 Rfe8 21.Rfd1 Nb8 22.Bc3 Qc8 23.Rdb1 Bc7 24.g3 (24.a5 ba5 25.Qg4 Nd7+=) 24...f5 25.Qh4 Nc6 26.Qh5 Qd7 27.Kg2 h6 28.Rd1 Qf7 29.Qf7 Kf7 30.Kf1 g6 31.Ke2 e5 32.Rd5 (better is 32.Rd8!? Rd8 33.Nd2+=) 32...e4–+ 33.Nd2 Rd5 34.cd5 Ne7 35.d6 Bd6 36.Nc4 Bc7 37.Rd1 Ke6 38.Be1? (better is 38.f4–+) 38...Ra8 39.Nb2 Nd5 40.f3 (40.Rb1 Be5 41.Nc4 Ra4 42.Nb6 Ra2 43.Kd1 Nc3 44.Bc3 Bc3–+) 40...ef3 41.Kf3 Be5 42.Nc4 Ra4 43.Rd5 Rc4 44.Rd8 b5 45.Re8 Kf6 46.Ba5 Bd6 47.Rd8 Be7 48.Rb8 b4 49.Bc7 Rc1 50.Rb6 Kf7 51.Rb7 Ke8 52.Kf4 (52.Rb6 c4 53.e4 fe4 54.Ke4 Re1 55.Kd4 Rd1 56.Kc4 Rc1 57.Kd5 Rc7 58.Rg6 Rc5 59.Ke4 Rh5–+) 52...Bf6 (52...Re1!? 53.h4–+) 53.g4 Rf1 54.Kg3 Be7 55.gf5 gf5 0–1. Pesotsky,Vitaly (2315) – Bezgodova,Maria (2100), Lipetsk King's Gambit–B, 2009. (=1.Nf3 d5 2.b4 e6 3.a3 Nf6 4.Bb2 c5 5.b5 Bd6 6.e3 0–0 7.c4 b6)

8.Bd3 a6 9.Nc3 +=.

8.Bd3 Nbd7 9.Nc3 Bb7 (9...dc4 10.Bc4 Bb7+=) 10.Ne2 (10.cd5!? Nd5 11.Nd5 Bd5 12.Qc2=) 10...e5–/+ 11.Bf5 (11.Ng3 e4 12.Nf5 Bc7–+ (12...ed3?! 13.Nd6 Qc7 14.Nb7=)) 11...e4 12.Ng5 Be5 (12...h6 13.Nh3 Ne5 14.Be5 Be5 15.Rc1–+) 13.Be5 (13.Bc3 h6 14.Bd7 Nd7–+ (14...Qd7?! 15.Be5 Ng4 16.Bc3+=)) 13...Ne5 14.d4 (14.0–0 Nc4 (14...dc4?! 15.Nc3+=) 15.d3 Nb2–+) 14...Nd3 (14...ed3 15.Bd3 dc4 16.Bf5–+) 15.Kf1 h6 16.h4 (better is 16.Nh3 g6 17.Be4 de4 18.Nhf4 Nf4 19.Nf4 cd4 20.Qd4–+) 16...g6 17.Be4 (17.Bg6 fg6 18.Ne6 Qd6 19.Nf8 Rf8 20.dc5 Qc5–+) 17...de4 (17...Ne4 18.Qd3 dc4 19.Qc2 hg5 20.f3 cd4 21.fe4–+) 18.Nh3 (18.dc5 hg5 19.c6 Bc6–+) 18...Qc7 (18...cd4 19.ed4 Ng4 20.Kg1–+) 19.d5 (19.Nhf4 cd4 20.Nd3 ed3 21.Nd4 Qc4–+) 19...Qe5 (19...a6 20.ba6 Ba6 21.Qb3–+) 20.Nef4 (20.Rb1 Rfd8–+) 20...Nb2 21.Qc2 (21.Qb3 Nc4! 22.Rd1 Nb2–+) 21...Nc4! 22.Rd1 (22.Qc4 Qa1) 22...Na3 (better is 22...Nd6!? 23.h5–+) 23.Qb3 Nb5 24.Qb5 Nd5 (24...Nd5 25.Nd5 Bd5–+) 0–1. Stapinski,R – Lewandowski,K, corr XVII Warsaw ch, 1994.

8.d4 a6 +=.

8.d4 Nbd7 9.Qc2 Bb7 10.Be2 Qc7 11.Nbd2 Ne4 12.Ne4 de4 13.Ng5 Nf6 14.h4 (14.dc5 Qc5 15.Bf6 gf6 16.Ne4 Qe5 17.Nd6 Qa1 18.Bd1 Rab8 (18...Bg2? 19.Rg1 Rfd8 20.Rg2 Kf8 21.c5+–) 19.Nb7 Rb7=) 14...h6 15.Nh3 cd4 16.Bd4 Nd7 17.g4 e5 18.Bb2 g6 19.Qc3 Nc5 20.0–0–0 Na4 21.Qc2 Nb2 22.Kb2 Qc5 23.Qc3 Rad8 24.Rd2 Rd7 25.Rhd1 Rfd8 26.g5 Qa3! 27.Qa3 Ba3 28.Kc2 Rd2 29.Rd2 Rd2 30.Kd2 Bb4 31.Kc2 h5 32.Kd1 Kf8 33.Kc2? (33.Ng1 a6 34.ba6 Ba6–/+) 33...Ke7 34.Kd1 Bc8 35.Ng1 Kd6 36.f3 Bb7 37.f4? (better is 37.fe4 Be4 38.Nh3–/+) 37...ef4–+ 38.ef4 Ke6 39.Bf1 a5 40.Ne2 Kd6 41.Nc1 Bc8 42.Ke2 Bf5 43.Nb3 a4 44.Nc1 Bc5 45.Kd2 Bd4 46.Na2 Kc5 47.Be2 e3 48.Kc1 Ba1 49.Bd1 Bd3 50.Ba4 Bc4 51.Kd1 Ba2 52.Ke2 Bd4 53.Bc2 Bc4 54.Bd3 Bb5 55.Bb5 Kb5 0–1. combijack (1780) – thitho (1680), gameknot.com, 2011.

8.cd5 ed5 9.Be2 +=.

8.cd5 Nd5 9.Be2 (9.d4 a6=) 9...Bb7 10.0–0 Nd7 (10...a6 11.d4=) 11.Nc3 (11.Qc2 f5=) 11...N7f6 (11...Nc3 12.dc3 Qc7 13.Qa4=) 12.Nd5 Bd5 (12...ed5 13.Qc2=) 13.d4 (13.Qc2 Re8=) 13...Rc8 14.Rc1 Ng4 (14...Qe7 15.dc5 Rc5 16.Rc5 Bc5 17.Qa4=) 15.g3 (15.dc5 Bc5 16.Qa4 f5=) 15...Qe7 (15...Nf6 16.Ne5=) 16.dc5 (16.e4!? Bb7 17.Nd2+=) 16...Bc5+= (worse is 16...bc5 17.e4 Ba8 18.Nd2+=) 17.Nd4 Nf6 18.Bf3 (18.Qa4 Ne4+=) 18...Rfd8 (18...Bd4!? 19.ed4 Rc1 20.Bc1 Rc8 21.Bd5 Nd5–/+ (21...ed5?! 22.Bg5+=)) 19.Bd5= Rd5 (19...Nd5 20.e4 Nf6 21.e5 Bd4 22.Rc8 Rc8 23.Bd4=) 20.Qb3 (20.Qf3 e5+=) 20...Qc7 21.Nc6 Ne4 22.f3 (better is 22.Qa4 f5 23.Rfd1+=) 22...Ng3!–/+ 23.Ne7? (23.hg3 Qg3) 23...Qe7–+ 24.hg3 Qg5 25.Kg2 Rcd8 26.Rfd1?? (26.Rcd1–+) 26...Rd2 27.Rd2 Rd2 (27...Rd2 28.Kh1 Qh5 29.Kg1 Qh2 30.Kf1 Qh1#) 0–1. Radecki,Krzysztof – Cieklinski,Pawel, Plock op rapid Poland, 1994.

8.Be2 dc4 9.Bc4 Qc7 (9...Bb7!?+=) 10.Bf6= gf6 11.Nc3 Bb7 12.Nh4 Nd7 (12...Bh2?? 13.Qg4 Kh8 14.Qh3+–) 13.Qh5 Ne5 (13...Bh2?? 14.Nf5 ef5 15.Rh2 (15.Qh2?! Qh2 16.Rh2 Rfe8+=) 15...Qh2 16.Qh2+–) 14.Be2 Kh8 15.f4 Ng6 16.Bd3 f5 17.Nf3 Bf4 18.Ng5? (18.Be2 Rg8 A) 19.ef4?? Nf4 20.Qh6 Rg6 (20...Ng2?! 21.Kd1+=) 21.Qg6 fg6–+; B) 19.0–0+=) 18...Bg5–+ 19.Qg5 f6 (19...Qd8 20.Qd8 Rad8 21.Bf1–+) 20.Qh5 Rad8 21.Bc2 Qe5 22.Rd1 (better is 22.0–0–0–+) 22...Nf4 (22...Bg2?! 23.Rg1 Be4 24.Ne4 fe4 25.Qe5 Ne5 26.Be4–+) 23.Qh6 Ng2 24.Kf2 Rg8 25.Rhg1 Rg4 26.Qh5 (26.Ne2 Rh4 27.d4 cd4 28.Rd4 Rh6 29.Rd8 Kg7 30.e4 Rh2 31.Rg2 Rg2 32.Kg2 Qb5 33.Nd4–+) 26...Rd2! 27.Ne2 (27.Rd2 Qe3 Mate attack) 27…Re2! 0–1. Romero Jaime,Pedro (1730) – Baeza Escudero,Javier (1955), Madrid–ch Previa–A, 2009. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.a3 c5 5.b5 Bd6 6.e3 0–0 7.c4 b6)

8.Be2 Bb7

9.0–0 Nbd7 10.d3 Qc7 11.h3 dc4 12.dc4 Rad8 A) 13.Nbd2 e5 (13...Rfe8 14.Qc2 e5 15.Nh2 e4 16.Ng4 Ng4 17.hg4 Bh2 18.Kh1 Be5) 14.Qc2 e4 15.Nh4 Bh2 16.Kh1 Be5 17.Rad1 Bb2 18.Qb2 Ne5; B) 13.Qc1 e5 (13...g6 14.Nc3 Ne5 15.Ne5 Be5 16.f4 Bd6 17.Qc2 e5 18.f5 e4; 13...Rfe8 14.Nc3 e5 15.Rd1 e4 16.Nh4 Ne5 17.Qc2 g6 18.a4 Be7; 13...Ne4 14.Nc3 Ne5 15.Ne4 Be4 16.Qc3 f6 17.Nd2 Bd3 18.Rae1 Be7; 13...Ne5 14.Nbd2 Ne4 15.Ne4 Be4 16.Ne5 Be5 17.f4 Bb2 18.Qb2 Qb7; 13...h6 14.Nbd2 e5 15.Nh4 e4 16.Nf5 Bh2 17.Kh1 Be5 18.Kg1 Kh7) 14.Nc3 e4 15.Nd2 Rfe8 16.Qc2 Nf8 17.Rfd1 Ng6 18.a4 Nh4; C) 13.Qb3 Ne5 (13...Ne4 14.Nc3 Ndf6 15.Rad1 h6 16.Ne4 Ne4 17.Qc2 f5 18.a4 Ra8; 13...h6 14.Nc3 Nh7 15.Nd2 Rfe8 16.Rad1 Nhf6 17.Qc2 Re7 18.Bf3 Bh2) 14.Nbd2 Nf3 15.Nf3 Ne4 16.Rfd1 Rd7 17.Rd3 Rfd8 18.Rad1 f6; D) 13.Qc2 Ne4 (13...Rfe8 14.Nc3 Ne5 15.Ne5 Be5 16.Rfd1 h5 17.f4 Bd6 18.Bf3 Bf3; 13...e5 14.Nc3 e4 15.Nh4 Ne5 16.Rfd1 Nd3 17.f4 Nb2 18.Qb2 Bf4; 13...Be4 14.Qb3 Ne5 15.Nbd2 Bf5 16.Ne5 Be5 17.Be5 Qe5 18.Nf3 Qc7; 13...Ne5 14.Nbd2 h6 15.Rfd1 Rd7 16.Be5 Be5 17.Ne5 Qe5 18.Nf3 Bf3; 13...h6 14.Nbd2 Rfe8 15.Rad1 e5 16.Nh4 e4 17.Nf5 Be5 18.f4 ef3) 14.Nc3 Ndf6 15.Rad1 Rfe8 16.Rfe1 Nc3 17.Qc3 e5 18.Qc2 h6.

9.0–0 Nbd7 10.d3 Qc7 11.h3 dc4 12.dc4 Rfd8 13.Nbd2 Ne5 14.Qc2 Rd7 (14...a5 15.Rad1 h6 16.Qc3 Nf3 17.Bf3 Bf3 18.Nf3 Qb7) 15.Rfd1 (15.Bc3 Nf3 16.Bf3 Rad8 17.Bb7 Qb7 18.Rad1 Be7) 15...Rad8 16.Bc3 (16.Ne5 Be5 17.Be5 Qe5 18.Nf3 Qb8) 16...Nf3 17.Bf3 Be5 18.Be5 Qe5 19.Bb7 Rd2 20.Rd2 Qa1 21.Kh2 Rd2 22.Qd2 g6 23.Qd3 Qe5 24.g3 Qc7 25.Bc6 Kf8 26.f4 h5 27.e4 h4 28.e5 Nh5 29.gh4 Nf4 30.Qe3 Nh5 31.Qh6 Ke7 32.Qh8 Qd8 33.Qd8 Kd8 34.Bg2 Ke7 35.Be4 Kf8 36.Kg2 Kg7 37.Kf3 f6 38.ef6 Kf6 39.Kg4 Ng7 40.Bd3 Nf5 41.h5 Nh6 42.Kh4 g5 43.Kg3 Nf7 44.h4 Ne5 45.hg5 Kg5+= 46.Be2 Nf7 47.Kf2 Nd6 48.Ke3 Nf5 49.Kd3 Ng3 50.Bf3 Nh5 51.Ke4 Nf4 52.Ke5= Nd3 53.Ke6 Kf4 54.Bd5 Ke3–+ 55.Kd6 Kd4 56.Kc7 Ne5 57.Kb7 Nc4 58.Bc6?? Nd6 59.Ka7 c4 60.Bf3 c3 61.Bd1 Nc4 62.Bb3 Kc5 63.a4 Kb4 64.Bc4?? c2 65.Be6 c1Q 66.Kb6 Qe3 67.Ka6 Qe6 68.b6 Ka4 69.Ka7 Kb5 70.b7 Qa6 71.Kb8 Kc6 72.Kc8 Qb7 73.Kd8 Qd7 0–1. Yang,Yimang – Nikolov,Rumen (1915), Caldas Novas BRA, World Ch U14 (b), 2011.

9.0–0 Nbd7 10.d3 Qc7 11.h3 dc4 12.dc4 Ne4 A) 13.Qc2 Ne5 (13...f5 14.Nc3 Ndf6 15.Rfd1 Rad8 16.Ne4 Ne4 17.Qa4 Ra8 18.Bd3 a6) 14.Nc3 f5 15.Rad1 Rad8 16.Nd2 Nd2 17.Rd2 Ng6 18.f4 Be7; B) 13.Nc3 Rad8 (13...Ndf6 14.Qc2 h6 15.Bd3 Nc3 16.Qc3 a6 17.e4 Bf4 18.ba6 Ra6; 13...Rfd8 14.Qc2 Ndf6 15.Rad1 Nc3 16.Qc3 e5 17.Qc2 Rd7 18.Nh4 Be4) 14.Ne4 Be4 15.Qb3 Be7 16.Rad1 Bf6 17.Nd2 Bb7 18.Bf3 Bb2.

9.0–0 Nbd7 10.d3 Qc7 11.h3 dc4 12.dc4 Ne5 13.Nbd2 Nf3 (13...a6 14.Ne5 Be5 15.Be5 Qe5 16.ba6 Ra6 17.Bf3 Bf3 18.Nf3 Qc3; 13...Rfd8 14.Qc2 Rac8 15.Rfd1 h6 16.Ne5 Be5 17.Be5 Qe5 18.Bf3 Ba8) 14.Bf3 Bf3 15.Nf3 Ne4 16.Qc2 f5 17.Rad1 Rad8 18.Rd3 g5.

9.a4 Nbd7 10.d4 Ne4 11.0–0 f5 12.cd5 ed5 13.Nc3 Ndf6 14.Ne4 fe4 (14...de4 15.dc5 Bc5 16.Bc4 Kh8 17.Ng5+/–) 15.Ne5 Bc8 (Better is 15...Qe8!?=+) 16.Nc6 Qe8 17.dc5 bc5 18.Bf6 Rf6 19.Qd5 Be6?? (Better is 19...Kh8+/–) 20.Qd6+– Bf7 21.Qc5 Rg6 22.Ne7 Kh8 23.Ng6 Bg6 24.Rfd1 Rc8 25.Qd4 h6 26.h3 Bf5 27.Bg4 Bg4 28.hg4 Qg6 29.Qd7 Rf8 30.Rac1 Qf6 31.Rd2 Rf7 32.Rc8 Kh7 33.Qe8 Qa1 34.Kh2 Qf6 35.Qe4 g6+– 36.Qd4 Qh4 37.Kg1 Rg7 38.Rc7 1–0. A – NightClub, Live Game Caissa's Web, 2004.

7.c4 Nbd7

8.a4 b6 9.Na3 Bb7 10.Qc2 Rc8 (10...d4 11.ed4 Bf3 12.gf3+=) 11.Be2 Qc7 12.h4 (12.d3 Rce8+=) 12...Rfe8 13.d3 Ng4 14.Ng5 Ndf6 15.Bf6 (15.d4 g6 16.h5 Bg3 17.Bg4 Ng4 18.hg6 Bf2 19.Qf2 Nf2 20.gf7 Qf7 21.Nf7 Nh1+=) 15...Nf6–/+ 16.Bf3 h6 17.Nh3 dc4 (17...Rcd8 18.Rc1–/+) 18.dc4 (18.Nc4!? Bf3 19.gf3+=) 18...Bf3–/+ 19.gf3 Qb7 20.Ke2 Rcd8 21.Nb1 Be7 (21...Re7 22.a5–/+) 22.Nc3 Nd7 23.f4 Bh4 24.f3 Nf8 25.a5 f5 (25...Qc7 26.ab6 ab6 27.Ne4–/+) 26.a6 Qf7 27.Nf2 Bf6 28.Rad1 g6 29.Rd3 Qg7–/+ 30.Rhd1 Rd3 31.Rd3 g5 32.fg5+= hg5 33.Na4 Ng6 34.Rd6 Ne5 35.Nb6 ab6 36.Rb6–/+ g4 37.fg4 Ng4 38.a7 Nf2 39.Re6? Qg4 40.Kf2?? Bh4–+ 41.Kf1 Rd8 42.Re8 (42.Re8 Re8 43.Qg2–+). Hellmark – Skulason, corr SSKK 1–449, 1993. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.a3 c5 5.b5 Nbd7 6.e3 Bd6 7.c4 0–0)

8.a4 e5–/+ 9.d3 Qe7 (9...dc4 10.dc4 Qc7 11.Nh4–/+) 10.Nfd2 (10.cd5 Nd5 11.Be2 Rd8+=) 10...d4 (10...a6 11.Nc3 d4 12.Nce4+=) 11.e4 (11.a5 Rd8+=) 11...g6 (11...Rd8 12.Be2+=) 12.Be2+= Ne8 (12...Bc7 13.a5=) 13.0–0 (13.a5 Nef6=) 13...f5 (13...a6 14.Na3=) 14.f3 (14.ef5 gf5 15.Bf3 Ndf6=) 14...Ng7 15.Nb3 (15.a5 Qh4+=) 15...Ne6 16.Bc1 Nf6 (16...Nf4 17.a5+=) 17.Rf2 (17.Bh6 Re8=) 17...Bd7 (17...Nf4 18.N1d2+=) 18.Na3 (18.Bh6 Ng7=) 18...Qg7 (18...Nf4 19.a5+=) 19.Nc2 h5 (19...a6 20.b6+=) 20.Bd2 Rf7 (20...Rae8 21.a5=) 21.a5 Kh7 (21...Nc7 22.ef5 Bf5 23.b6 ab6 24.ab6 Ra1 25.Qa1= (worse is 25.Nca1 Na8–/+; worse is 25.Nba1 Na8–/+)) 22.a6 b6 23.Kh1 Rh8 24.Qg1 Kg8 25.Re1 h4 26.h3 Nh5 27.Qh2? Qf8?? 28.Nc1? Ng3 29.Kg1 fe4 30.de4 Ne4! 31.fe4 A pinning theme. 31...Rf2 32.Nd3 Rf7 33.Bf3 Qg7 34.Rf1 g5 35.Nce1 Rh6 36.Kh1 Nf4 37.Bf4 gf4 38.Rf2 Be6 39.Rc2 Qg6 40.Qg1 Rg7 41.Qh2 Qf7 42.Nb2 Rg3 43.Ned3 Rh7 44.Nf2 Rhg7 45.Rc1 Kf8 46.Rc2 Rf3 47.gf3 Rg3 48.Ng4 Rf3 49.Kg1 Rg3 (49...Rg3 50.Kf1 Ke8–+; 49...Qg6 50.Re2–+) 0–1. Voelkel,Gerd – Mueller,M (2325), Sachsen–ch Gruenheide, 1996.

8.a4 Re8 9.Be2 e5 10.d3 d4 11.e4 Nf8 12.Nbd2 Ng6 13.a5 Nf4 14.g3 Ne2 15.Qe2 Bh3 16.Nb3 Bg2 17.Rg1 Bh3 18.0–0–0 Bg4 19.Kc2 Qd7 20.Ra1 a6 21.b6 Rac8 22.Nbd2 h6 23.Qe1 g6 24.Qc1 Kg7 25.Ne1 Ng8 26.f3 Be6 27.Ng2 Ne7 28.f4 Nc6 29.Qf1 Bh3 30.Qf3 Bg4 31.Qf1 Nb4 32.Kb3 Be6 33.Nf3?? (better is 33.f5 gf5 34.ef5 Bf5 35.Ne4–+) 33...Qb5–+ 34.Nd2 (34.Qb1–+) 34...Nd3 35.Kc2 Qb2 (35...Qb2 36.Kd3 Qc3 37.Ke2 Bg4 38.Qf3 d3 39.Kf1 Bf3–+) 0–1. onny555 (1855) – hko61 (2030), gameknot.com, 2012.

8.Qc2 a6 9.Nc3 Ne5 10.Ng5 h6 (worse is 10...Nc4 11.Nd5 Ne4 A) 12.Qc4? ed5 (12...Ng5?! 13.Nc3 e5 14.Qd5=; 12...Qg5? 13.Nb6 Nf2 14.Kf2 ab5 15.Qb5+–) 13.Qd5 Ng5–+ (worse is 13...Qg5 14.Qe4 ab5 15.Bb5+=); B) 12.Ne4 ed5 13.Bc4 de4 14.ba6+=) 11.h4 d4 (11...Nc4 12.Nd5 Ne4 A) 13.Bc4 ed5 14.Bd5 Bf5 (14...Ng5 15.Qg6 Ne6 16.Be6 Qf6 17.Bf6 Be6 18.Qg7) 15.Ne4 Re8+–; B) 13.Qc4 ed5 14.Qd5 Nf6=; C) 13.Ne4?! ed5 14.Bc4 dc4+/–; D) 13.Qe4 hg5 14.hg5+– (14.Qc4?! ed5 15.Qd5 Be7+–; 14.Bc4?! f5 15.Qd3 ab5 16.Bb5 gh4+–)) 12.ed4 cd4 13.Nce4 hg5 14.Nf6?? (better is 14.Nd6 Qd6 15.hg5+=) 14...Qf6–+ 15.hg5 Qg6 16.Qg6 Ng6 17.Bd4 e5 18.Be3 ab5 19.cb5 Ra3 20.Ra3 Ba3 21.Bd3 Rd8 22.Be4 Nf4 23.Bh7 Kf8 24.Be4 Ke7 25.Rh7 g6 (25...Nd3 26.Bd3 Rd3 27.Rg7–+) 26.g3 Nd5 27.Bg6 Be6 (better is 27...Bb4–/+) 28.Be4?? (better is 28.Bf7 Bf7 29.g6=) 28...Ne3–+ 29.de3 Bc4 30.f4 Bb4 31.Kf2 Rd2 32.Kg1 Re2 (32...Bb5?! 33.g6 Bc4 34.g7–/+) 33.Bb7 Re3 (33...Bb5?! 34.g6 Re3 35.Rf7 Kd6 36.Rf6 Kc5 37.Kh2 ef4 38.gf4+=) 34.Kf2 Bc5 35.Kg2 Bb5 (better is 35...Bd3 36.g6 Bg6–+) 36.g6–/+ Re2 37.Kh3 Bd7 38.g4 Kf6?? (38...ef4 39.g7 Bg1–+) 39.Rf7?? (39.g7 Bg4 40.Kg4+–) 39...Kg6= 40.Rd7 ef4 41.Bf3 Re3 ˝–˝. combijack (1765) – the_elite_knight (1695), gameknot.com, 2010.

8.Qc2 b6 9.d3 Bb7 10.Nbd2 Qc7 11.h3 Ne5 12.Ne5 Be5 13.Nf3 Bb2 14.Qb2 dc4 15.dc4 Bf3 16.gf3 Rad8 17.Rg1 Qd6 18.Be2 (18.f4 Rd7+=) 18...e5 19.Rd1 Qe6 20.a4 Rd1 21.Kd1 Qh3 (21...Re8!?–/+) 22.Qe5= Qd7 23.Kc1 Rd8 24.Rg3?? (24.Rd1 Qc8=) 24...Qd6 (24...Qd2 25.Kb1 Qe1 26.Ka2 Qe2 27.Kb3 Qd1 28.Kb2 Rd2 29.Ka3 Qc1 30.Kb3 Qc2 31.Ka3 Qa2) 25.Qc3 Ne8 26.f4 Qf6 27.Qe5 Qe5 28.fe5 Nc7 29.f4 Kf8 30.Rh3 h6 31.Bf1 Ne6 32.Kc2 a6 33.Bg2 ab5 34.ab5 Rd7 35.Bd5 Nc7 36.e4 Ne6 37.Be6 fe6 38.Rd3 (better is 38.Kc3!?=) 38...Rd3–/+ 39.Kd3 Kf7 40.Ke3 g5 41.f5 h5 42.f6 Kg6 43.Kf3 g4 44.Kg3 Kf7 45.Kh4 Kf8 46.Kg3 Kf7 47.Kh4 Kf8 48.Kg3 Kf7 ˝–˝. Hauser,Christow (1610) – Titgemeyer,Sven, Hamburg Robinow op, 2005. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.a3 Bd6 5.e3 0–0 6.c4 c5 7.b5 Nbd7)

8.Qc2 b6 9.cd5 ed5 10.d4 Re8 11.Be2 Bb7 12.0–0 Rc8 13.Qd2 Ne4 14.Qd1 c4 15.Nc3 f5 (15...Ndf6 16.Rc1+=) 16.g3 Secures f4 16...Qc7 17.Nh4 g6 18.Qc2 Ndf6 19.a4 Bb4 20.Na2 Ba5 21.Bc3 (21.Nc3 Kh8+=) 21...Nc3 22.Nc3 Black has the pair of bishops 22...Bb4 23.Rab1 White threatens to win material: Rb1xb4 23...Be7 24.Nf3 Nd7 25.h4 Rf8 (25...Bd6 26.Kg2=) 26.Kg2 Rce8 27.Rh1 Bd8 28.Ra1 Qd6 29.Na2 Bc7 30.h5 Kg7 31.hg6 hg6 32.Nc3 In the style of Nimzovich 32...Qf6 33.Rh3 Rh8 34.Rah1 Rh3 35.Rh3 Rh8 36.Rh4 Rh4 37.Nh4 Nf8 38.Na2 f4 39.Bd1? Ne6 40.Nc1? Qe7?? stumbles just before the finish 41.Nf3?? Qg5 ˝–˝. Bougot,Joel (1880) – Trovalet,Sylvain (1990), FRA–chT4, 2001.

8.Qc2 e5 9.cd5 Nd5 10.Bc4 N5b6 11.Be2 Re8 12.h4 h6 13.g4 e4 14.Ng1 Ne5 15.Be5 Be5 16.Nc3 f5 17.gf5 Bf5 18.0–0–0 (18.Rd1 Rc8+=) 18...Bf6 (18...c4 19.f4 Bf6 20.a4–/+) 19.h5? (19.d3 ed3 20.Bd3 Bd3 21.Rd3 Qe7–/+) 19...Rc8 (19...c4 20.a4–+) 20.f4 c4 21.Nh3 Qe7 22.a4 Qa3 23.Qb2 Qb2 (23...Qc5!? 24.Kc2–+) 24.Kb2 Na4 25.Kc2 Nc5 26.Bc4 Kh8 27.Bf7 (27.Ra1 Nd3 28.Bf7 Re7–/+) 27...Red8 28.Rdg1? (better is 28.Ra1 a6 29.Nf2–/+) 28...Na4–+ 29.Rg3 Nc3 30.dc3 Bc3 (30...Rc3 31.Kb1 Ra3 32.Ng5 Ra1 33.Kc2 Rc8 34.Kd2 Rh1 35.Rh3 Bh3 36.Bd5 Rh2 37.Kd1 Bg4 38.Nf3 Bf3 39.Ke1 Rc1) 31.Kb3 Bd2 32.Bc4 (32.Rd1 Rd3 33.Ka4 Re3–+) 32...a6! 33.ba6 ba6 34.Ba6 (34.Rd1–+) 34...Rc3 35.Kb2 (35.Ka4 Bd7 36.Bb5 Ra8 37.Kb4 Rc1 38.Kb3 Be6 39.Bc4 Bc4 40.Kb2 Ra2) 35...Rb8 36.Ka1 Ra3 0–1. combijack (1815) – romast (1745), gameknot.com, 2013.

8.Nc3 b6 9.Be2 Bb7 10.cd5 ed5 11.0–0 Ne4 12.d3 Ng5 13.a4 d4 14.ed4 Nf3 (14...cd4 15.Ne4 (worse is 15.Nd4 Nh3 16.gh3 Qg5 17.Bg4 Qf4–/+) 15...Nf3 16.Bf3=) 15.Bf3+= Bf3 16.Qf3 Qh4 17.g3 Qd4 18.Nd1 Ne5 19.Qa8 Ra8 20.Bd4 Nf3 21.Kg2 Nd4 22.Ne3 g6 23.Rfb1 f5 (23...Be5 24.Ra2 Re8 25.a5 ba5 26.Ra5+–) 24.Nd5 (24.a5 ba5 25.Ra5 Rb8+–) 24...Kf7 (24...Be5 25.a5 Nb3 26.Rb3 Ba1 27.Ra3+–) 25.a5+– Ke6 26.Ne3 ba5? 27.Ra5+– Bc7 28.b6 Bd8 29.Ra7 Rb8 30.b7 Nc6 31.Ra8 Bc7 32.Nc4 Nb4 33.Rb8 Bb8 34.d4! Kd5 35.Na5 Bc7 36.b8Q! Bb8 37.dc5 Kc5 38.Rb4! Kb4 39.Nc6 Kb5 40.Nb8 Kb6 41.Nd7 (41.Nd7 Kc6 42.Nf8+–) 1–0. Moraes,Maurino – Corvalao,Eder Daniel, Lages CC–ch, 1990.

8.Nc3 b6 9.Be2 dc4 10.Bc4 Bb7 11.0–0 =.

8.Nc3 b6 9.Be2 Re8 10.0–0 Bb7 11.d4 Qc7 12.Rc1 (12.cd5 Nd5 13.Qd3=) 12...e5 (12...dc4 13.dc5 Nc5 14.Bc4–/+) 13.de5= Ne5 14.Nd5 (14.cd5 Nf3 15.Bf3 Bh2 16.Kh1=) 14...Nd5 (14...Nf3 15.Bf3 Nd5 16.cd5 Bh2 17.Kh1=) 15.cd5 (better is 15.Be5!? Be5 16.cd5+/–) 15...Nf3= 16.Bf3 Rad8 (16...a6!?=) 17.g3 (17.h3 a6+/–) 17...a6 (17...Be5 18.Be5 Qe5 19.e4+/–) 18.a4 (18.Qd3 Be5 19.Be5 Re5+/–) 18...Qd7 (18...Be5 19.Rc2+=) 19.Qb3 f6 (19...ab5 20.ab5 Ra8 21.Rfd1+/–) 20.Rfd1 ab5 21.ab5 (21.Qb5 Qb5 22.ab5 Ra8+/–) 21...Qf7 (21...Ra8 22.Bc3+/–) 22.Bg2 Bc8 23.e4 Bd7 (23...f5 24.Qc2+/–) 24.f4 g6 (24...Re7!?+/–) 25.Re1+– Re7 (25...Qg7 26.Qc3 Be7 27.Rcd1+–) 26.e5 fe5 27.fe5 Be5 28.Re5 Re5 29.Be5 Re8 30.Bb2 Re7 31.Qc3 (31.Qc3 Qg7 32.Qg7 Rg7 33.Bg7 Kg7 34.Rc5 bc5 35.b6+–) 1–0. Ranby,Hans – Zimmer,Georg, corr 3GMM–24, 1995.

8.Nc3 Nb6 9.d3 Qe7 10.Be2 e5 11.Nd2 d4 12.Nce4 Ne4 13.Ne4 Bc7 14.a4 Nd7 15.a5 f5 16.Nd2 de3 17.fe3 Qh4 18.g3 Qh6 19.Nf3 (19.e4!?+=) 19...e4–/+ (19...Qe3?? 20.Bc1 Qc1 21.Qc1+– (worse is 21.Rc1 Ba5 22.Nd2 f4+–)) 20.de4 Bg3! 21.Kd2 (21.hg3 Qh1 Pinning (21...Qh1 Deflection)) 21...Bf2 22.Kc2 fe4 23.Qd5 Kh8 24.Rhg1?? (better is 24.Ng5 Qg6 25.Ne6+=) 24...Bg1 25.Rg1 Nf6 (worse is 25...ef3 26.Bg7 Qg7 27.Rg7 Kg7 28.Bf3–+; 25...Rf3 26.Bf3 ef3 27.Qf7 (27.Bg7?! Qg7 28.Rg7 Kg7=) 27...Qh2 28.Kb3 Qb2 29.Kb2 g6 30.Rh1 Nf6 31.Qf6 Kg8 32.Qd8 Kg7 33.Qe7 Kg8 34.Rh7 f2 35.Qf7) 26.Qd6? Bf5 27.Ng5 Bg6 28.Qf4 Nd5?? 29.Nf7!!+– Rf7 30.Qh6 Nb4 31.Kb3 Nd3 32.Rg6 Nb2 33.Qh5 (33.Qh5 Rf2 34.Rh6 gh6 35.Qe5 Kg8 36.Qg3 Kh8 37.Qf2+– (37.Kb2?! Re2 38.Kb3 Re8+=)) 1–0. Auger,Bertrand (2095) – Drolet,Stephane (2120), Quebec City–ch, 2004.

8.Nc3 dc4 9.Bc4 e5 =+.

8.Nc3 Ne5 9.Ne5 Be5 10.Be2 d4 11.Na4 b6 (11...Qc7 12.f4 Bd6 13.0–0+=) 12.Bf3 Rb8 13.0–0 Bc7 14.ed4 cd4 15.d3 Qd6 16.g3 a6 17.ba6 Ba6 18.Bc1 Nd7 19.Bd2 Rfd8 20.Bb4 Qe5 21.Be7 Re8 22.Re1 Qa5 23.Bb4 Qg5 24.Bc6 Red8 25.h4 Qf6 26.Bd2 ˝–˝. Klaric,Zl (2425) – Checiak,K (2160), 20th ICSC TCh–EUR Club, 2011. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.a3 c5 5.b5 Nbd7 6.e3 Bd6 7.c4 0–0)

8.d3 b6 9.Nbd2 Bb7 10.Be2 Qc7 11.0–0 Rad8 12.h3 dc4 13.Nc4 Be7 14.e4 Nh5 15.Re1 Nf4 16.Bf1 Nf6?? (16...a6 17.ba6 Ba6 18.Qc2+=) 17.Qc2?? (better is 17.Be5 Qc8 18.Bf4 Be4 19.Be2+–) 17...Ng6 18.a4 Ne8 19.Bc3 Nd6 20.Nfe5 Nc4 21.Nc4 Rd7 22.g3 Bd6 23.e5 Be7 24.f4 Rfd8 25.a5 Ba8 (better is 25...h5!?=) 26.ab6+/– ab6 27.Ra6 Qb7 28.Bg2 (28.Qh2!? Qc7 29.Nb6+/–) 28...Qg2+= 29.Qg2 Bg2 30.Kg2 Rd3 31.Ba1 (better is 31.Rc1=) 31...Rb3–+ 32.Rb6 Rdd3 33.Rb8 Bf8 34.Re3 Re3 35.Ne3 Re3 36.b6 Rb3 37.b7 f6! 38.ef6 Kf7 39.fg7 Bg7 40.Bg7 Kg7 41.Rc8 Rb7 42.Rc5 Kf6 43.h4 Rd7 44.Kh3 Ne7 45.Rc3 Nd5 46.Rb3 Rc7 47.Kg4 Kg6 48.Kf3 Rc3 49.Rc3 Nc3 50.Ke3?! Kf6 51.Kf3 Nb5 52.g4 Nd6 53.Ke3 Nc8 54.Ke4 Nd6 55.Kd4?? Ne8 56.Ke4 Ng7 57.h5 h6 58.Kd4?? Ne8 59.Ke4 Nc7 60.g5? hg5 61.h6 gf4 62.Kf4 Kg6 63.Ke5 Kh6 64.Kf6 Kh5 65.Ke5 Kg4 66.Ke4 Kh5 67.Kf4?? Kg6 68.Ke5 Kg5 69.Ke4 Kf6 70.Kf4 e5 71.Ke4 Ke6 72.Kd3 Kf5 73.Ke3 Nd5 74.Kf3 e4 75.Ke2 Kf4 Black prepares e3 76.Kf2 e3 77.Ke2 Nc3 78.Ke1 Kf3 79.Kf1 e2 80.Ke1 Nd5 0–1. Holz auf der Heide,Gerhard (1985) – Jaenig,Philipp (1810), Leipzig VfB op, 2006.

8.d3 b6 9.Nbd2 Bb7 10.Be2 Qe7 11.0–0 Rad8 12.h3 Bb8 13.Qb3 Rfe8 14.Rfe1 Qd6 15.a4 h6 16.cd5 ed5 17.Qc2 Nh7 18.Nf1 Qg6 19.Nh4 Qg5 20.g3 Rc8 21.Bg4 Qd8 22.f4 Bd6 (22...c4!?=) 23.Bg7!+/– (23...Bf8 24.Bf8 Nhf8 25.e4+/–) 1–0. Pommerel,Wim – Bennett,Hilton, email 4AMM–F, 1998.

8.d3 b6 9.Be2 Bb7 10.0–0 Qc7 11.h3 Rfe8 12.Nc3 e5 13.cd5 Nd5 14.Nd2 Rad8 15.Nd5 Bd5 16.Bf3 Nf6 17.Bd5 Nd5 18.Qb3 Qb7 19.Rfd1 Re6 20.Qc4 Rg6 21.Qe4 Bb8 22.a4 Qd7 23.Kf1 f5 24.Qc4= Kh8 25.Nf3 Qe6 26.e4 fe4 27.Qe4 Rf6 28.Rd2 (28.Kg1 Nf4 29.a5 Qd7+=) ˝–˝. Schulze,Harald – Heimrath,Reiner, Forchheim op–A, 2003.

8.d3 b6 9.Be2 e5 10.cd5 Nd5 11.0–0 =+.

8.d3 e5 9.Be2 =+.

8.d4 Qa5 9.Qd2 Qc7 10.h3 Ne4 11.Qe2? (better is 11.Qc1+=) 11...Bg3!–+ 12.Nbd2 (12.fg3 Ng3 Double attack) 12…Nf2 (12...Nf2 13.Qf2 Bf2 14.Kf2 a6–+; 12...Bf2?! 13.Kd1 Ng3 14.Qf2 Nh1 15.Qh4–+) 0–1. Rush,Bradley – Lacunza,Mario (1720), 62. LSS No Engine Cup Preliminary, 2012.

8.d4 b6 9.Nbd2 Bb7 10.Be2 Qe7 11.Ne5 Rac8 12.0–0= Rfd8 13.Bd3 Bb8 14.f4 Nf8 15.f5 cd4 16.Ng4? dc4 17.Nc4=+ ef5 18.Rf5 Ne8 19.ed4= Bd5 20.Nce5 f6 21.Nc6 Bc6 22.bc6 Rc6 23.Qb3 Kh8 24.d5 Rcd6 25.Raf1. Pedersen,J – Skov,H, corr, 1986.

8.d4 b6 9.Bd3 Bb7 10.cd5 Bd5 11.Nbd2 =+.

8.d4 b6 9.Bd3 cd4 10.Nd4= Bb7 11.cd5 Nd5 12.Nd2 Ne5 13.N2f3 Nd3 14.Qd3 Rc8 15.0–0= Qd7 16.Rfc1 Nf6 17.Nc6?? Bh2!–+ 18.Nh2 Qd3 (19.Ne7 Kh8 20.Nc8 Rc8 21.Bf6 Rc1 22.Rc1 gf6–+; 18...Bc6?! 19.Qd7 Bd7 20.a4=+) 0–1. Brennecke,Willi – Mueller,Horst, 2005.

8.d4 cd4 9.Qd4 e5 10.Qh4 =+.

8.d4 cd4 9.Nd4 Nb6 10.Qc2 Nc4 11.Bc4 dc4 12.Nd2 c3 13.Bc3 Nd5 14.Nc4 Bc7 15.0–0 (15.Rd1 Bd7=) 15...e5 (15...Bh2 16.Kh2 Qc7 17.f4 Qc4 18.Bb4 Qc2 19.Nc2–/+) 16.Nf3 e4 17.Nfd2 Nc3 18.Qc3 f5 19.Rfd1 Qe7 20.Rac1 Be6 21.a4 Rfd8 22.Nb3 Rd1 23.Rd1 Bh2 24.Kh2 Qc7 25.g3 Qc4 (25...Bc4? 26.Na5 Rc8 27.Nc4+–) 26.Qc4 Bc4 27.Na5 Bd3 28.Nb7 Rc8 29.Nd6 Rc2 30.a5 (30.Kg1 Rc5=) 30...Rf2+= 31.Kh3?? (better is 31.Kg1 Rf3 32.b6 ab6 33.ab6 Rg3 34.Kf2 Rf3 35.Kg1 Rg3 36.Kf2 Rf3 37.Kg1 Rg3=) 31...g5 (31...Be2 32.Rg1 Bg4 33.Kh4–+) 32.b6? (better is 32.g4 Be2 33.Rg1 fg4 34.Kg3 Rf3 35.Kg2–+) 32...ab6 33.ab6 (33.g4 fg4 34.Kg4 Be2 35.Kg5 Bd1 36.ab6 Rb2–+) 33...Be2 34.Nf5 (34.g4 Bd1 35.gf5 Rf3 36.Kh2 Re3–+) 34...Bd1 (34...Rf5?! 35.Rd8 Kg7 36.b7=) 35.b7 Rb2 (35...Rf5 36.b8Q Rf8 37.Qd6 g4 38.Kh4+/–) 0–1. Kalanyos,Ferenc (1995) – Manyoki,Anna (2075), HUN–chT2 Asztalos, 2008.

8.d4 cd4 9.Nd4 Nb6 10.cd5 Nbd5 11.Nd2 +=.

8.d4 cd4 9.Nd4 e5 10.Nf5 Bc7 11.cd5 Nc5 12.Ng3 Nd5 13.Nd2 Ba5 14.Bc1 (better is 14.Be5!? Re8 15.Bd4+=) 14...Be6–+ 15.Qc2 (15.Rg1–+) 15...Rc8 16.Rb1 Nb6 17.Qd1 (17.Kd1 Nca4 18.Qd3 Qc7–+) 17…Nba4 (17...Nba4 18.Be2 Nc3–+) 0–1. Wall,Bill – Plock,Joerg, corr, 2006.

8.d4 Qe7 +=.

8.d4 Re8 +=.

8.cd5 ed5 9.Nc3 Ne5 (9...Nb6 10.Be2+=) 10.Be2 (better is 10.Nd5 Bg4 11.Be2 Bf3 12.Nf6 Qf6 13.gf3 Nf3 14.Bf3 Qb2 15.Bb7=) 10...Bg4?? (better is 10...d4 11.Na4 Qc7+=) 11.Ne5+– Be5 12.Bg4 d4 13.Na4 (13.ed4 cd4 14.Na2 Qd5+–) 13...Qa5 (13...Ng4 14.Qg4 de3 15.fe3 Bb2 16.Nb2 Qd5+–) 14.Be2 (14.Nc5?! Ng4 15.Qg4 de3+–) 14...Rac8 (14...Ne4 15.Bd3 Nd2 16.Qd2 Qa4 17.0–0+–) 15.0–0 (better is 15.Nc5!? Rc5 16.ed4 Ng4+–) 15...Rfd8 16.Qc2 Bh2 (16...c4 17.Bc4 Bh2 18.Kh1 Be5+–) 17.Kh2 d3 18.Bd3 Rd3 (18...Ng4 19.Kh3 Rd3 20.Qd3 Qa4 21.Qd7 Nf2 22.Rf2+–) 19.Qd3 Qa4 (19...Ng4 20.Kg3 Qa4 21.Qd7+–) 20.Bf6 (20.Bf6 gf6 21.Qd7 Qh4 22.Kg1+–) 1–0. Reimer,Karl – Heinz,W, PF–op Mehlingen, 1992.

8.cd5 ed5 9.Bd3 Qe7 10.0–0 Ne5 11.Ne5 Be5 12.Be5 Qe5 13.Nc3 b6 (13...Re8 14.Rc1+=) 14.Bc2 d4 15.ed4 Qd4 16.Qf3 Bg4 17.Qe3 Rad8 (17...Rfe8 18.Qd4 cd4 19.Na2–/+) 18.Qd4 Rd4 19.d3 (19.f3 Be6+= (worse is 19...Rd2 20.Ra2+/–)) 19...Nd5 (better is 19...c4!? 20.h3 cd3 21.hg4 dc2–+) 20.Nd5+= Rd5 21.f3 Bd7 22.a4 Rd8 23.Rfe1 Kf8 24.a5 (better is 24.Re3!?+=) 24...Bb5–+ 25.ab6 a6 (better is 25...ab6!? 26.Rab1 Bd3 27.Bd3 Rd3 28.Rb6 c4–+) 26.Ba4+= Bd3 27.Re3 g6 (better is 27...Rb8!?–/+) 28.Rae1= Bb5 29.Bb5 ab5 30.b7 R5d7? (better is 30...Kg7 31.Re8 Rd1+–) 31.Re8!! Re8 (31...Kg7 32.b8Q Rb8 33.Rb8+–) 32.Re8 Ke8 33.b8Q Ke7 34.Qe5 (worse is 34.Qb5 Rc7+–) 34...Kd8 35.Qc5 1–0. Avdeeva,Veronika (2130) – Karavaeva,Nadezhda (1955), RUS–ch (Women) 1st League, 2007.

8.cd5 ed5 9.Be2 a6 +=.

8.Be2 b6 9.Nc3= Bb7 10.Qc2 (10.cd5 Nd5 11.Nd5 Bd5=) 10...Qe7 (10...dc4 11.Bc4 Re8 12.Be2+=) 11.h4 (11.cd5 ed5 12.Nh4 Qe6=) 11...Rfd8 (11...dc4 12.Bc4 Rfd8 13.Rd1–/+) 12.h5 (12.cd5 ed5 13.Qf5 Rac8+=) 12...h6 (12...dc4 13.h6 g6 14.Bc4+=) 13.cd5+= ed5 14.d4 (14.Nh4 d4 15.Nf5 Qe5=) 14...Ne4 (14...Qe6 15.Kf1+=) 15.Ne4 (15.0–0 Ndf6+=) 15...de4–/+ (15...Qe4?! 16.Qe4 de4 17.Nh4=) 16.Nh4 Qg5 17.g3 (17.Rd1 Rac8 18.Qa4 Bd5–/+) 17...cd4 18.Bd4 Be5 Black is in command (18...Nc5 19.Bc5 Bc5 20.0–0–/+) 19.Qb2 (19.Rd1 Bd5–/+) 19...Bd4 20.Qd4 (better is 20.ed4!? Nf6 21.Rh3–/+) 20...Ne5–+ 21.Qb2 (21.Qb4 Nd3 22.Bd3 ed3–+ (22...Rd3?! 23.Ng2–/+)) 21...Nd3 22.Bd3 ed3 (22...Rd3?! 23.Ng2–/+) 23.0–0 Qh5 24.Qb4 (24.Rad1–+) 24...g5 25.g4 (25.Qe7 Rab8 26.Rfd1–+) 25...Qh4 26.f3 (26.e4 Qg4 27.Kh2 Qf3–+) 26...Qg3 27.Kh1 Bf3 (27...Rac8 28.Qd2 Rc2 29.Rad1 Bf3 30.Rf3 Qf3 31.Kh2 Qd1 32.Kg2 Qd2 33.Kf3 Qg2) 28.Rf3 Qf3 29.Kg1 d2 (29...d2 30.Qa5 d1Q 31.Rd1 Rd1 32.Qe1 Re1 33.Kh2 Rh1#) 0–1. Winsch,Doc – Schulien,Chuck, Zanesville Tornado, 1987.

8.Be2 dc4 9.Bc4 Nb6 (9...e5 10.d3+=) 10.Be2 Nbd5 (10...Qe7 11.0–0+=) 11.0–0 (11.Qc2 Ng4=) 11...b6 (11...a6 12.d4=) 12.Nc3 (12.d4 a6=) 12...Bb7 (12...a6 13.Nd5 Nd5 14.d4=) 13.Qc2 (13.Nd5 Nd5 14.d4 a6=) 13...Qc7 (13...Nc3 14.Bc3 Nd5 15.Rfd1=) 14.Rac1 (better is 14.Nd5 Nd5 15.d4=) 14...Ng4?? Will h2 fall? (better is 14...Nc3 15.Qc3 e5=) 15.Nd5+– Bh2 (15...Bd5 16.Ng5 f5 17.Bg4+/–) 16.Kh1 With the decisive threat Ng5 16...Bd5 (16...Bd5 17.Ng5 f5 18.Bg4 h6+–). NathanStack – DanielMartin, ChessWorld.net, 2004. (=1.c4 Nf6 2.b4 e6 3.a3 c5 4.b5 d5 5.e3 Bd6 6.Bb2 0–0 7.Nf3 Nbd7)

8.Be2 Qc7 9.d4 (9.cd5 ed5 10.Nc3 Re8+=) 9...dc4 (9...cd4 10.Qd4 e5 11.Qh4+=) 10.Nbd2 Qa5 (10...c3 11.Bc3 cd4 12.Bd4=) 11.Bc4 (11.dc5 Bc5 12.Bc4 a6=) 11...Nb6 (11...a6 12.dc5 Nc5 13.Bf6 gf6 14.Qb1=) 12.Qc2 (12.0–0 Na4 (worse is 12...Nc4 13.Nc4 Qb5 14.Nd6 Qb2 15.dc5+/–) 13.Bc1 cd4=) 12...Na4 (12...Nc4 13.Qc4 cd4 14.Bd4=) 13.0–0 (13.dc5 Nc5 (13...Bc5? 14.Bf6 gf6 15.Bb3+–) 14.0–0 a6+=) 13...Nb2= 14.Qb2 Qc7 (14...cd4 15.Nd4 e5 16.N4f3=) 15.dc5 (15.Rfc1 cd4 16.Bd3 Qe7 17.Nd4 Rd8=) 15...Qc5 16.Qd4 (16.Be2 Rd8=) 16...b6 (16...Qd4 17.Nd4 Rd8 18.Rfc1=) 17.Qc5 (17.Rfc1 Rd8 18.Qh4 Qf5=) 17...Bc5 (17...bc5 18.e4 e5 19.Rac1=) 18.Nb3 Be7 19.Ne5 Bb7 (19...a6 20.Nc6 Re8 21.Rfd1=) 20.Nd4 (20.Nc6 Rfe8=) 20...Rfc8 (20...a6 21.ba6 Ba6 22.Rfd1=) 21.Be2 (21.Rfc1 Kf8=) 21...Bd5 (21...Nd5=) 22.Rfc1 (22.Ndc6 Bd6=) 22...Bc5 (22...Rc1!? 23.Rc1 Ba3–/+) 23.Ndc6= Kf8 24.Bf3 (24.Bd3 a6 25.a4 Ne4=) 24...Ke8 25.Rd1 (25.Bd5 Nd5 26.Nd3 Bd6=) 25...Ne4 26.Nd3 Bf8 27.Ndb4 Nc3 28.Nd5 Nd1 29.Rd1 ed5 30.Rd5 Ba3–/+ 31.g3 a6 32.Re5 Kf8–/+ 33.Nd4 a5 34.Ba8+= Ra8 35.Rd5 a4–/+ 36.Nc2 Bc5 37.Rd1 a3 38.Ra1 Ke7 39.Kf1 Ke6 40.Ke2 Kd5 41.Kd3 Be7 42.Nd4 Kc5 43.Rc1 Kd5?? 44.e4 Kd6+= 45.f4 Kd7 46.Ra1= Bc5 47.Ra2 Ra4 48.Nf3 f6 49.h4 h6 50.g4 Ke6 51.f5= Ke7 52.Nd2 Rb4–/+ 53.Ra3 Rd4–+ 54.Kc3 Rd2 55.Ra7 Rd7 56.Ra2 Be3 57.Re2 Bf4 58.h5 Be5 59.Kb3 Rd3 60.Kc4 Rc3 61.Kb4 Rg3 62.Ra2 Rg4 63.Ra7 Kd6 64.Rb7 Bd4 65.Kc4 Bc5 66.Kd3 Ke5 67.Rd7 Rg3 68.Kc4 Ke4 69.Rd5 Rc3! (69...Rc3 70.Kc3 Kd5–+) 0–1. Krois,A – Orth,R, Ruhrgebiet, 1997.

8.Be2 e5 9.d3 b6 10.cd5 Nd5 11.0–0 Bb7 12.Nbd2 f5 13.Nc4 Will e5 fall? 13...Qe7 14.Nd6 Qd6 15.Nd2 Rae8 16.Bf3 N7f6 Black plans e4 17.a4 e4 18.de4 fe4 19.Be2 Kh8 20.a5 Rd8 21.Nc4 Qe6 22.Qa4 Ba8 23.Rad1 Nb4 24.Rd8 Rd8 25.ab6 ab6 26.Qa7 Nd7 27.Qc7 Rg8 28.Qd6 Bd5 29.Qe6 Be6 30.Nd6 Nd3 31.Bc3 c4 32.Bg4 Bd5 33.Bd7 Rd8 34.Nc8 Rd7 35.Nb6 Rd8 36.Nd5 Rd5 37.Ra1 h5 38.b6 Rb5 39.Bd4 c3 40.Bc3 Rb6 41.h4 Kh7 42.Bd4 Rc6 43.Ra7 Rc1 44.Kh2 Nf2 45.Rg7 Kh6 46.Re7 Rf1 47.Re6 Kh7 48.Ra6 Ng4 49.Kg3 Rf5 50.Ra7 Kh6 51.Ra2 Kg6 52.Rc2 Kh6 53.Rb2 Kg6 54.Ra2 Kh6 55.Bb6 Kg6 56.Rc2 Kh7 57.Rc6 Kg7 58.Rc3 Kg6 59.Bc7 Rd5 60.Rc6 Kg7 61.Kf4 Rd2 62.g3 Nf2 63.Be5 Kh7 64.Kf5 Rd5? (64...Rd7+–) 65.Rc8 (65.Rc8 Re5 66.Ke5+–) 1–0. Kosikov,Alexey I (2425) – Shvayger,Yuliya (2160), Kiev Independence Cup–A 9th, 2009.

8.Be2 Qe7 9.0–0 b6 10.Nc3= Bb7 (10...a6 11.d4 dc4 12.Bc4=) 11.d4 (11.cd5 ed5 12.Qa4 Rfe8=) 11...Rac8 12.cd5 Nd5 13.Nd5 (13.Rc1 Rfd8=) 13...Bd5+= 14.a4 (14.dc5 Nc5 15.Rc1 Rfd8–/+) 14...Rfd8 15.Qb1 (15.a5 Nf6+=) 15...f5 (15...Nf6 16.dc5 bc5 17.Rc1+=) 16.Nd2 (16.a5 cd4 17.Bd4 Nc5+=) 16...cd4 17.Bd4 e5 18.Bb2 Qe6 (18...Qg5 19.Nf3 Bf3 20.Bf3+=) 19.e4 fe4 20.Ne4 Nc5 21.Nd6 (21.Bf3 Be7 22.Re1 Bc4=) 21...Rd6+= 22.Rd1 (22.Re1+=) 22...Bb3 (22...Rd7!?+=) 23.Rd6 (23.Bg4 Rd1 24.Qd1 Qc4=) 23...Qd6= 24.Ba3 (24.Qf5 Re8 25.Qh5 Bf7=) 24...Qe6 (24...Bd5 25.Bd3 Qh6 26.Bf5=) 25.Bc5 (25.a5 e4=) 25...Rc5 26.a5 Bc2 27.Qb4 Qd5 28.ab6 ab6 29.h3 h6 30.Qb2 Qd4 31.Ra8 Kh7 32.Qa2 Qd5 33.Qd5 Rd5 34.Rc8 Ba4 35.Bf3 Rb5 36.Be4+= g6 37.Rc7 Kg8 38.Bg6 Rc5 39.Rb7 Rc1 40.Kh2+= b5 41.Be4 Re1 42.f3 Rd1 43.h4 Rd6 44.Kg3 Rd2 45.Rh7 Rd6+= 46.Re7 b4 47.Re5 b3 48.Ra5 Bd7? 49.Bd5?? Rd5!–/+ 50.Rd5 b2 51.Rd1 Bf5 52.Kf4 b1Q 53.Rb1+= Bb1 54.h5 Kg7 55.Ke5 Bd3 56.f4?? Be2–+ 57.Kf5 Bh5 58.g4 Be8 59.Ke5 Kg6 60.Ke4 Bc6 61.Ke3 Kf7 62.Kf2 Ke6 63.Kg3 Be8 64.Kh4 Bf7 65.Kg3 Kd5 66.Kh4 Ke4–+ 67.Kg3 Be8 68.f5 Ke5 69.Kf3 Kf6 70.Kf4 Bc6 71.Kg3 Kg5 72.Kh3 Bf3 (72...Bf3 73.f6 Bg4 74.Kg3 Be6–+) 0–1. Kriegenhofer,Ludwig – Schoeller,Wolfgang (2100), Regionalliga NO, 1997.

8.Be2 Qe7 9.0–0 e5 10.d4 e4 11.Nfd2 =.

8.Be2 Qe7 9.0–0 e5 10.cd5 e4 11.Ne1 Nd5 12.Bc4 (12.Nc3!? Nc3 13.Bc3+=) 12...N7b6–/+ 13.Be2 Bf5 14.Nc3 Nc3 15.Bc3 Rfd8 16.f3 Nd5 17.Bb2 Qc7 18.f4 Be7 19.g3?? (better is 19.Qb3–/+) 19...Ne3!–+ (19...Ne3 20.de3 Rd1 21.Rd1 Qb6–+) 0–1. cristero (2355) – pierred (2825), net–chess.com, 2015.

8.Be2 Re8 9.Qc2 b6 10.d3 Bb7 11.Nbd2 a6 12.a4 e5 13.e4 d4 14.Nh4 g6 15.g4? (better is 15.Nhf3!?+=) 15...Ne4–+ 16.de4 Qh4 17.Qd3 Bf8 18.Bc1 ab5 19.cb5 c4! 20.Nc4 (20.Nc4 Nc5 Combination; 20.Qc4 Rec8 Decoy) 20...Nc5 21.Qg3 Qg3 22.hg3 (22.fg3?? Be4 23.0–0 Nb3–+) 22...d3 23.Bf3 Nb3 24.Rb1 Nd4 25.Bg2 Bc5 26.Bg5? Ra4–+ 27.Nd2 Bb4 28.0–0 Bc8 29.f3 Be6 30.Be3 Nc2 31.Kf2 Ra2 32.Rfd1 Rd8 33.Bb6 Rd6 34.Bc7?? Bc5–+ 35.Kf1 Ne3 36.Ke1 Ng2 37.Kf1 Ne3 38.Ke1 Rd7 39.b6 Bb6! 40.Bb6 Nd1 41.Kd1 Rb7 42.Kc1 Rc2 43.Kd1 Bd7 44.Nf1 Rc6 45.Ne3 Rcb6 46.Rb6 Rb6 47.Nd5 Rd6 48.Kd2 Rd5! 49.ed5 Bb5 50.d6 Kf8 51.g5 Ke8 52.f4 e4 53.g4 Kd7 0–1. Sanchez Rodajo,P (1715) – Sanchez Millan,E (1975), II Patrimon Open, Alcala de Henares ESP, 2007. (=1.Nf3 Nf6 2.b4 e6 3.a3 c5 4.b5 d5 5.e3 Bd6 6.Bb2 Nbd7 7.c4 0–0)

8.Qc2 Re8

9.a4 e5 10.d3 d4 11.e4 Nf8 12.Nbd2 a6 13.g3 b6 14.h4 h6 15.Be2 Bg4 16.0–0 Ne6 17.Rfb1 a5 18.Qd1 Bh3 19.Nh2 Nh7 20.Bg4 Bg4 21.Ng4 h5 22.Nh2 g6 23.Qe2 Kg7 24.Kf1 Nf6 25.Ke1 Qe7 26.Kd1 Rh8 27.Kc2 Nd7 28.Rh1 Raf8 29.Raf1 Rc8 30.Bc1 Rhf8 31.Kb3 f6 32.Ka2 Qf7 33.f3 f5 34.Nb3 f4 35.g4 Rh8 36.Bd2 Nf6 37.Rfg1 Rh7 38.Be1 Rch8 39.Bf2 Be7 40.Qe1 Ne8 41.Kb2 Kf8 42.Rg2 hg4 43.Ng4 Rh5 44.Rhg1 Qg7 45.Na5 ba5 46.Qa5 Bd8 47.Qa8 Qc7 48.Be1 White prepares the advance a5 48...R8h7 49.a5 Qb7 50.Qb7 Rb7 51.a6 Ra7 52.Nh2 g5 53.hg5 Ng5 54.Kb3 Kf7 55.Ka4 Be7 56.Ba5 Ra8 57.Rb2 1–0. Wlasow,Andrey (1920) – Taszi,Arisztid, OP–2009–0–00839, 2009.

9.Be2 Nf8 10.d4 cd4 11.Nd4 dc4 12.Bc4 Ng6 13.Nf3 Qc7 14.Nbd2 Bd7 15.a4 Rac8 16.Rc1 Bb4 17.Qb3 Qa5 18.Bc3 (18.0–0!?+=) 18...Bc3+= 19.Rc3 Ng4 (19...Nd5 20.Rc2+=) 20.Ne4 N4e5 21.Nd6?? (better is 21.Ne5 Ne5 22.0–0+=) 21...Rc4! 22.Nc4 Nc4 23.Ke2? (better is 23.0–0!? Nb6 24.Rc7–/+) 23...Nb6–+ 24.Rc7 Rc8 (better is 24...Na4!? 25.Rd7 Nc5 26.Qb2 Nd7 27.Rd1–+) 25.Rc8 (25.Rb7 e5 26.Ng5 Be8–/+) 25...Nc8 26.Rc1 e5 27.Ng5 Nd6 28.Rd1 Bb5?? 29.ab5+/– Qb5 30.Qb5 Nb5 31.Rd8 Nf8+= 32.Ne4 f6 33.Nc5 Kf7 34.Nb7 Ne6 35.Rd3 Ke7 36.Na5 Nc5 37.Nc6 Ke6 38.Rd2 Nc3 39.Ke1 Nb3?? 40.Rd3+– a5 41.Rc3 a4 42.Nb4 Kd6 43.Rc6 Kd7 44.Ra6 Nc5 45.Ra5 Kd6 46.Ke2 Ne4 47.Na2 Nc5 48.Nc3 Kc6 49.Na4 (49.Na4 Ne6 50.Ra6 Kd7 51.Nb6 Kc7 52.Nd5 Kd7 53.e4+–) 1–0. Wagner,Jean Philippe (1720) – Sicard,Stephane, Champs sur Marne op, 2005.

9.Be2 e5

10.d3 +=.

10.cd5 e4 11.Ng5 Nd5 12.Ne4 Ne5 13.Nbc3 +/–.

10.cd5 e4 11.Ng5 Nd5 12.Ne4 Be5 13.Be5 Re5 14.0–0 +/–.

10.cd5 e4 11.Ng5 h6 12.Nh3 Nd5 13.Nc3 N7f6 14.Ng1 b6 15.Bc4 Bb7 16.Nge2 Qc7 17.Nd5 Nd5 18.0–0–0 Be5 19.Be5 Qe5 20.Kb1 a6 21.f4 ef3! 22.gf3 ab5 23.Bb5 Red8 24.a4 Nb4 25.Qc3 Qc3 (25...Qe6!? 26.Rhg1 g6–+) 26.dc3–/+ Nd5 (26...Bf3?! 27.cb4 Bh1 28.Rh1 cb4 29.Nd4=) 27.e4 Nc7 28.Rd8 Rd8 29.Kc2 Nb5 30.ab5 f5 31.Ng3 (worse is 31.ef5 Bf3 32.Re1 Be4 33.Kb3 Bf5–/+) 31...fe4 32.fe4 Rf8 33.Rd1 Bc8 34.Rd6 Rf6 35.Rd8 Rf8 36.Rd6 Rf6 37.Rd8 Rf8 38.Rd6 Rf6 39.e5 (39.Rf6 gf6 40.Nf5 Bf5 41.ef5+–) 39...Rd6–/+ 40.ed6 g6 41.Kd3 Kf7 42.Ne2 Ke6 43.Nf4 Kd6 44.Ke3 g5 45.Ne2 Bd7 (better is 45...Kd5!?–+) 46.c4–/+ Be6 47.Kd3 Bh3 48.Ng3 Ke5 49.Ke3 Be6 50.Kd3 Bf5 51.Ke3 Bg6 52.Ne2 g4 53.Nc3 Kd6 (better is 53...Bf7 54.Kd3 h5–+) 54.Nd5+= Bf7 55.Nb6 h5 56.Kd3 h4 57.Ke3 Be6 58.Kf4 Kc7 59.Na4 g3 (worse is 59...Bc4 60.Kg4 Bb5 61.Nc5+/–) 60.Kf3 gh2 61.Kg2 Bc4 ˝–˝. combijack (1740) – smokeyred (1755), gameknot.com, 2012.

10.cd5 e4 11.Ng5 h6 12.Nh3 Ne5 13.Nf4 Bd7 14.Nc3 c4 15.0–0 Nd3 16.Nd3 ed3 17.Bd3 cd3 18.Qd3 Rc8 19.f3 Qc7 20.f4 Qc4 21.Qc4 Rc4 22.a4 Bb4 23.h3 Bc3 24.Bc3 Nd5 25.Bd4 a6 26.d3 Rb4 27.Bc5 Rb3 28.e4 Nc3 29.ba6 ba6 30.a5 Ne2 31.Kh2 Rd3 32.e5 g5 33.Rad1 Nf4 34.Bd6 Rd1 35.Rd1 Bb5 36.Bc7 Nd3 37.g4 (37.Kg3 Kg7–+) 37...Rc8 38.Bd6 (38.Bb6 Rc2 39.Kg3 Bc6–+) 38...Rc2 39.Kg3 Nf4 40.Be7 (40.Rg1 Bc6 41.Bb4 Rb2–+) 40...Rg2 41.Kf3 Be2 (41...Be2 42.Ke4 Bd1–+) 0–1. combijack (1790) – meridian_2 (1970), gameknot.com, 2011.

8.Nc3 Re8

9.a4 d4 10.ed4 cd4 (10...e5!? 11.de5 A) worse is 11...Be5 A1) 12.Ne5? Ne5 (worse is 12...Re5 13.Be2+/–) 13.Be2 Nd3 14.Kf1 Nb2–+; A2) 12.Be2+=; B) 11...Ne5 12.Ne5 Be5+= (12...Re5?! 13.Be2=)) 11.Nd4= Nc5 12.Qc2 Bf8 (12...Bf4 13.Nce2 e5 14.Nf4 ed4 15.Kd1–+) 13.Nf3 (13.Nb3!?=) 13...e5+= 14.0–0–0 e4 15.Ng5 (15.d4 Na4 16.Na4 ef3 17.gf3 a6+=) 15...h6 16.Nf7 (better is 16.Nh3!?–/+) 16...Kf7–+ 17.d4 ed3 18.Bd3 Nd3 19.Rd3 Qc7 20.Nd5 (20.Rd4 Bd6 21.Nd5 Nd5 22.cd5 Qc2 23.Kc2 Re2 24.Kb3 Bf5–+) 20...Nd5 21.Rd5 Be6 22.Be5 Qc8 23.Rd4 Ba3 24.Kd1 Rd8 25.Rd8 Qd8 26.Ke2 Qh4 27.f4 Qg4 28.Ke3 (28.Ke1 Bb4 29.Kf2 Rd8–+) 28...Bc5 29.Bd4 0–1. Otte,Marco – van der Harst,Albert, Wag.Intcomp Wageningen, 2000.

9.Qb3 Nb6 10.d3 d4 11.ed4 cd4 12.Ne2 (better is 12.Nd4!? e5 13.Nc2+=) 12...e5–+ 13.g3 (13.Ng3 a6 14.Ng5 e4–+) 13...Bg4 (13...Nbd7 14.Bg2 Nc5 15.Qd1–+) 14.Bg2 e4 15.Nfd4?? (better is 15.de4 Ne4 16.Bd4 Nc4 17.Qc4 Qa5 18.Kf1 Bf3 19.Be3–+) 15...ed3 16.Qd3 (16.f3 Bf5!! 17.Bf1–+) 16...Re2! 17.Ne2 (17.Qe2 Be2 18.Ne2 Nc4–+) 17...Bb4!! 18.Qc3 (18.ab4 Qd3 Discovered attack) 18...Bc3 19.Bc3 Qe7 (better is 19...Qd3 20.0–0 Be2 21.Bf6 gf6 22.Rfe1 Nc4 23.Bb7–+) 20.f3 Re8 21.0–0 Qe3 22.Kh1 Qe2 23.Bf6 gf6 24.fg4 Kg7 25.Bb7 Nc4 26.a4 Qg4 27.Rf4 Qe2 28.Bf3 Qe6 29.Bc6 Rd8 30.Re4 Ne5 31.Ree1 Rd2 32.Bg2 Qg4 33.Rab1 Nd3 34.Rf1 Nf2 35.Kg1 Qd4 36.h4 Ng4 37.Kh1 Ne3 38.Rg1–+ Ng2 39.Rg2 Rg2 40.a5 Qf2 0–1. Da Silva Junior,Marco Aurelio – Correia,Ramon, Imbituba BRA, Open, 2014.

9.Qb3 d4 10.ed4 cd4 11.Na4 –/+.

9.d4 cd4 10.Nd4 dc4 11.Bc4 Nb6 =.

9.Be2 dc4 10.Bc4 b6 (10...Nb6 11.Be2+=) 11.Qc2 (11.d3 Bb7=) 11...Bb7+= 12.Be2 Qc7 13.h3 Rad8 (13...e5 14.e4+=) ˝–˝. Amor Alcalde,Manuel – Bautista Sanchez,Joan (2175), La Pobla de Lillet, 2000.

9.Be2 Qc7 10.h3 b6 11.0–0 Bb7 12.Rc1 e5 13.cd5 e4 14.Ne1 Nd5 15.d3 Nc3 16.Bc3 ed3 17.Bd3 Ne5 18.Bb1 Rad8 19.Qc2 Ng6 20.a4 a6 21.Qb2 f6 22.Qe2 ab5 23.ab5 Qd7 24.Qc4 Kh8 25.h4 Bb8 26.h5 Ne5 27.Qa4 Ng4 28.Qc2 Threatening mate: Qxh7 28...Be4 29.Qe4 Re4 30.Be4 Qb5 31.Nf3 Qe8 32.Rfd1 Bd6 33.Bf5 Qh5 34.Bg4 Qg4 35.Rb1 h6 36.Rdc1 Rb8 37.Rd1 Bc7 38.Ne1 b5 39.Nd3 b4 40.Ba1 c4 41.Ne1 c3 42.Rdc1 Qe2 43.Nf3 Ra8 44.Nd4 Qh5 45.g3 Ra2 46.Kg2 Qd5 47.Nf3 Qd6 48.Bc3 Qg3 (48...Qg3 49.Kh1 Qf3 50.Kg1 Qf2 51.Kh1 Qg2#) 0–1. Kublashvili,Eteri – Mongontuul,Bathuyag (2375), Rudenko mem St Petersburg, 2002.

7.c4 Re8

8.Qb3 b6 9.Be2 Bb7 10.0–0 Nbd7 11.h3 h6 12.d4 Rc8 13.Ne5 Qc7 14.Nd7 Qd7 15.Nd2 Qc7 16.Rac1 Red8 17.Bd3 Re8 18.Bb1 Qe7 19.Qd3 Rc7 20.f3 Rd7 21.Rce1 a6 (21...cd4 22.cd5 de3 23.Ne4 Ne4 24.fe4–/+) 22.a4 (22.e4 de4 23.fe4 e5=) 22...a5 (22...cd4 23.Bd4 e5 24.Bb6 dc4 25.Qc2 ab5 26.ab5–/+) 23.Qc2 (23.dc5!? Bc5 24.Bf6 Qf6 25.Ne4+=) 23...Rc8 24.e4 de4 25.fe4 e5 (better is 25...cd4 26.Bd4 Bc5–/+) 26.de5+= Be5 27.Be5 Qe5 28.Nf3 Qg3 29.Re3?? (better is 29.e5 Bf3 30.ef6 Qg2 31.Qg2 Bg2 32.Kg2+–) 29...Rcd8+= 30.e5?? (better is 30.Qf2 Nh5 31.Qg3 Ng3 32.Rfe1+=) 30...Rd2!!–+ 31.Re2 (31.Qd2 Rd2 Combination; 31.Nd2 Qg2#) 31...Rc2 32.Bc2 Nh5 33.Rff2 (33.Bb3 Nf4 34.Rb2 Nh3 35.Kh1 Bf3 36.Rf3 Qe1 37.Kh2 Qe5 38.Kh3 Qb2–+) 33...Nf4 34.Rd2 Nh3 (better is 34...Rd2 35.Rd2 Kf8 36.Bd1 Bf3 37.Bf3 Qe1 38.Kh2 Qd2 39.Kg1–+) 35.Kf1 Rd2 36.Rd2 g6 37.Bd1 Bf3 38.Bf3 Nf4 (better is 38...Ng5!? 39.Bd5–+) 39.Rd6 Ne6 40.Rb6 Qe5 41.Bd5 Qf4 (41...Nf4 42.Kf2–+) 42.Kg1 (42.Ke1 Qe3 43.Kf1 Nf4 44.Rb8 Kg7–+) 42...Qe3 (better is 42...Nd4!? 43.g3 Ne2 44.Kg2 Qg3 45.Kf1–+) 43.Kh2 Qf4 44.Kg1 Qe3 (better is 44...Nd4!? 45.g3 Ne2 46.Kg2 Qg3 47.Kf1–+) 45.Kh2 Qf4 (better is 45...Nf4 46.Bf3 Ne2 47.Be2 Qe2 48.Rc6 Qc4 49.b6–+) 46.Kg1 Qe3 (better is 46...Nd4 47.g4 Qg4 48.Kf2 Qe2 49.Kg1–+) 47.Kh2 Qf4 (better is 47...Nf4 48.Bf3 Ne2 49.Be2 Qe2–+) 48.Kg1= ˝–˝. Jonsson,Pall G (1800) – Kravchuk,Mykhaylo, Reykjavik ISL, Open, 2014.

8.Nc3 Nbd7=+ 9.Qc2 Ne5 10.Ne5= Be5 11.cd5 ed5=+ 12.Be2 Be6 13.0–0 Rc8 14.f4 Bc3 15.dc3 Bg4 16.Bc1 Be2 17.Qe2 d4 18.cd4 cd4 19.Rd1 Qb6 20.Bb2 Re3–+ 21.Qf2 d3?? 22.Bf6 gf6 23.Kf1?? Rc2–+ 24.Qh4 Ree2 25.Rd3 Rf2 26.Ke1 Qe6 (27.Re3 Qe3 28.Kd1 Rfd2#) 0–1. Margraf,A – Oberhunger, Fuegen/Tirol, 1993.

8.Be2 Nbd7 9.0–0 Qc7 10.d4 cd4 11.cd5 (better is 11.Qd4!? e5 12.Qh4+=) 11...de3–/+ 12.de6 ef2 13.Rf2 Re6 14.Rf1 (14.h3 Ne4 15.Rf1 Bc5 16.Nd4 Qe5–+) 14...Ng4 15.Qd3?? (15.Kh1 Bh2 16.Qd4–+) 15...Bh2 16.Kh1 Rh6 (16...Rh6 17.b6 Nb6–+) 0–1. Moraes,Maurino AD (1695) – Da Silva,Denison KB (1970), Sao Bento do Sul BRA Open, 2013.

8.Bf6 Qf6 9.Nc3 Qf5 =.

8.Bf6 Qf6 9.Nc3 Qg6 =.

6.Nf3 Nbd7

7.a4 0–0 8.c4 e5 9.cd5 Nd5 10.Bc4 N5b6 11.Ba2 (better is 11.d3!?+=) 11...e4–+ 12.Ng1 Ne5 13.Be5 Be5 14.Nc3 Bc3 (14...Qg5 15.g3 Qg6 16.a5+=) 15.dc3 Qf6 (15...Qg5 16.g3–/+) 16.Qc2+= Be6 17.Ne2 Ba2 18.Ra2 Qe5 19.a5 Nd5 20.Ra4 Rfe8 21.0–0 Rad8 22.Rd1 (22.Rc4 Nf6=) 22...Rd6 (better is 22...Nc3!? 23.Nc3 Qc3–+) 23.h3 f5 24.Ra2 Nc7 25.Qb3 Kf8 (25...Qe6 26.Qe6 Ree6 27.Rd6 Rd6 28.c4=) 26.Rad2= Red8 27.Rd6 Rd6 28.Rd6 Qd6 29.Nf4 (29.Ng3 Qd5 30.c4 Qd3+=) 29...g5 30.b6 gf4 31.bc7 Qc7 32.ef4 (32.Qd5 Qc8= (worse is 32...Qa5 33.Qf5 Kg7 34.Qg4 Kf7 35.Qf4 Ke6 36.Qe4 Kd6 37.Qf4 Kd7 38.c4+–)) 32...Qa5 33.Qb7 Qc3 34.Qc8 Kg7 35.Qf5 Qe1 36.Kh2 Qf2 37.Qe4 Qd4 38.Qb7 Kf6 39.Qa7 (39.Kg3 Qe3 40.Kg4 Qe2 41.Kg3 Qe1 42.Kg4 Qe7 43.Qb2 Kf7=) 39...Qf4+= 40.Kg1 Qe3 41.Kf1 Qd3 42.Kf2 c4 43.Qb6 Ke5 44.Qc5 Ke4 45.Qe7 Kd4 46.Qf6 Kc5 47.Qe7 Kb5 48.Qe2 Qd4 49.Ke1 Kb4 50.Qd2 Qd2 51.Kd2 Kb3 52.Kc1 Kc3 53.g4 Kd3 54.h4 Ke4 55.h5 Kf4 56.h6?? (56.Kd2 h6 57.Kc3 Kg4 58.Kc4 Kg5=) 56...Kg4 (better is 56...Kg5 57.Kd2 Kh6–+) 57.Kc2= Kg5 58.Kc3 Kh6 59.Kc4 Kg5 60.Kd3 Kg4 61.Ke2 Kg3 62.Kf1 Kh2 63.Kf2 h5 64.Kf1 h4 65.Kf2 h3 66.Kf1 ˝–˝. Kalanyos,Ferenc (2000) – Gal,Peter (2075), HUN–chT2 Asztalos, 2007.

7.a4 0–0 8.Be2 +=.

7.a4 b6 8.d3 e5 9.Be2 (9.c4 a6+=) 9...Qc7 10.h3 (10.Nbd2 0–0+=) 10...Nf8 (10...a6 11.ba6 0–0 12.Nc3+=) 11.0–0 (11.c4 dc4 12.dc4 Ng6=) 11...Ng6 12.Nbd2 (12.c4 dc4 13.dc4 0–0=) 12...Be6 (12...0–0 13.c4=) 13.c4 d4 (13...0–0 14.Ng5=) 14.Ng5 Bd7 (14...Bf5 15.Bf3 Rd8 16.Nge4=) 15.Nge4 (15.Bf3 Rd8+=) 15...Be7 (15...Ne4 16.Ne4 (worse is 16.de4 0–0+=) 16...Be7 17.Bf3=) 16.Bf3 (16.Nf6 Bf6 17.a5 ba5+=) 16...Rd8 17.Qc2 (17.Nf6 Bf6 18.Be4 Be6+=) 17...0–0= 18.a5 Ne4 (18...ba5 19.Nf6 Bf6 20.Be4=) 19.ab6 ab6 20.Be4 f5 (20...Be6 21.Nf3=) 21.Bd5 Kh8 22.Bf3 (22.Qb3 Bf6=) 22...Nh4 23.ed4 (better is 23.Rfe1=) 23...Bg5 (23...cd4!? 24.Qd1 Nf3 25.Qf3 Rfe8=) 24.de5 (24.dc5!? Bd2 25.Qd2 Nf3 26.gf3+/–) 24...Bd2+= Black gets strong initiative 25.Qd2 Nf3 26.gf3 f4 27.Kh2 Be6 28.Qe2 Qf7 29.Rfd1 Qh5 Threatening mate: Qxh3 30.Qf1 Qf3 Attacking the backward pawn on d3 31.d4 Bc4–/+ 32.Qg2 Qb3 33.Rg1 Rg8–/+ 34.Bc1 Bd5 35.Qg4 Be6 36.Qh4 Rd4–+ Black creates threats along the open d–file 37.Ra7 Rd3 The mate threat is Rxh3 38.Ra3 Qb5 39.Rd3 Qd3 40.Bf4 Qd7 41.Be3 ˝–˝. Solozhentseva,Anna – Grebenshikova,Tatiana, Tula Club–ch op, 2000.

7.c4 0–0 (--> 6.Nf3 0–0 7.c4 Nbd7).

7.c4 a6 8.Nc3 Ne5 (8...0–0!?+=) 9.cd5= ed5 10.Nd5 Bg4 11.Nf6 Qf6 12.Be5 Be5 13.Rc1 0–0 14.ba6 ba6 15.Rc5 Rab8 16.Be2 (worse is 16.Re5 Bf3 17.gf3 Qe5 18.Ba6 Qa5+=) 16...Bf3 17.Bf3 Qd6 (17...Rfe8 18.Rc6 Re6 19.Rc4+/–) 18.Rd5 (18.d4!? Bf6+–) 18...Qe7 19.0–0 Rfd8 (19...Bd6 20.Qa4+–) 20.Rd8 Rd8 21.a4 (21.d4 Qa3 22.Qa1 Bd6 23.Qa3 Ba3+–) 21...Bc3? (better is 21...Qd6!? 22.g3 Qd2 23.Qd2 Rd2+–) 22.d4+– (22.dc3?! Rd1 23.Rd1 Kf8+/–) 22...a5 23.Bc6 Bb4 24.d5 Qe5 25.Qd4 (25.Qf3 Bd6 26.g3 Rb8+–) 25...Qh5 (25...Qd4 26.ed4 Bc3 27.Rb1+–) 26.f3 (26.e4 Qh6 27.Qb6 Rf8+–) 26...Qg5 27.Rc1 h5 (27...Bd6 28.Qe4+–) 28.Qf4 Qf4 29.ef4 Bd2 30.Rc4 Kf8 31.Re4 g6 32.g3 Bb4 33.Kf2 Rb8 34.g4 (34.Ke3 Bd6+–) 34...hg4 35.fg4 Bc5 36.Kg3 Rb3 37.Kh4?? (37.Kg2!? Rb2 38.Kf3 Rh2 39.Re8 Kg7+–) 37...f6?? (better is 37...Bf2 38.Kg5 Kg7–+) 38.Re2 Rf3 39.d6! Rf2?? (39...Bd6 40.Re8 Double attack (40.Bf3 Discovered attack; 40.Re6 Decoy)) 40.Rf2 (better is 40.d7 Bb6 41.d8Q Bd8 42.Rf2+–) 40...Bf2 41.Kh3 ˝–˝. Vasilev,Sergey – Karaiskakis,Petros (1750), FSFMB May, 2012.

7.c4 b6 8.Qb3 Bb7 9.Nc3 0–0 10.Be2 Qc7 11.Rc1 (11.cd5 ed5 12.0–0 Rfe8=) 11...Rac8 (11...d4 12.ed4 cd4 13.Nd4 Bg2 14.Rg1–/+) 12.d3 Rfe8 13.Qc2 d4 14.ed4 cd4 15.Ne4 Ne4 16.de4 Bf4 17.Nd2 e5 18.Bd3 Nc5 19.g3 Bh6 20.f3 Be3 21.Ke2 f5! 22.Rcf1 (22.ef5 Bd2 Combination) 22...Bd2 23.Kd2 fe4 24.fe4 Nd3 25.Kd3 Qd6 26.Rf2 a6 27.Qb3?? (27.a4 Qb4 28.Rd1 Rc7–+) 27...Kh8 (27...Be4 28.Ke4 Qg6 29.Kf3 Rf8 30.Kg2 Qe4 31.Rf3 Qe2 32.Kh3 Rf3 33.Qd1–+) 28.a4?? (better is 28.Rhf1–/+) 28...Be4–+ 29.Ke4 Qg6 30.Rf5 Qg4 31.Kd5 (31.Kd3 Qf5 32.Kd2–+) 31...Qf5 (31...Rc5 32.Kd6 Qf5 33.Bd4 Qe6) 32.Ba3 (32.c5 e4 33.Kd6 Qc5 34.Kd7 Rcd8) 32...Red8 33.Bd6 Rc5 0–1. Kalanyos,Ferenc (2000) – Manyoki,Anna (1975), HUN–chT2 Asztalos, 2008.

7.c4 b6 8.cd5 ed5 9.Bd3 0–0 10.0–0 Re8 11.Qc2 Bb7 12.Bf5 g6 13.Bh3 d4 14.Ne1 (14.ed4 Bf3) 14...de3 (14...a6 15.a4–/+) 15.fe3+= Ne5 16.Nc3 Bc7 17.Ne2 Ne4 (17...a6!?+=) 18.d4= Qg5 19.Bc1 Ng4 (19...Ng4 20.Nf3 Qh5+= (worse is 20...Ne3 21.Qd3 Bh2 22.Nh2+/–)). Sternik,Ryszard – Hind,Alan, corr 3GMMsemi–05, 1999.

7.c4 Qc7 8.d3 0–0 9.Nc3 =+.

7.c4 Qc7 8.d3 a6 9.Be2 0–0 10.Nc3 Rd8 11.Qb3 d4 12.ed4= cd4 13.Nd4 Nc5 14.b6 Qd7 15.Qc2 e5 16.Nb3 Qc6=+ 17.0–0 Bd7 18.Bf3 Qb6=+ 19.Nc5 Bc5 20.Rab1 Qc7 21.Ne4 Ne4 22.Be4 Re8 23.Bc1 Rab8 24.Be3 Be3 25.fe3= Bc6 26.Bc6 bc6 27.Rb8 Rb8 28.d4 Qd6 29.Qf5+= f6 30.de5 Qe5= 31.Qe5 fe5 32.Rf5 Re8 33.g4 Re6 34.Kg2 h6 35.a4 (35.e4 g6 36.Rf3 Rd6=) ˝–˝. Bonetti,Shane (2110) – Schulz,Hans_Juergen (1955), TT–15, ETC, 2005.

7.c4 Qc7 8.cd5 ed5 9.Be2 0–0 =+.

7.d4 0–0 8.dc5=+ Nc5 9.Nc3 Qc7 10.Be2 Rd8 11.Qd4 e5–/+ 12.Qh4 Bf5 13.0–0 Bc2 14.Rac1 Bf5 15.g4 Be6 16.b6? Qb6–+ 17.Nb5?! Bg4 18.Rb1 Bb8 19.Kh1 a6 20.Nbd4 ed4 21.Bd4 Qd6 22.Rg1 Nce4 23.Rb6 Bf3 24.Bf3 Qh2 25.Qh2 Bh2 26.Kh2 Ne8 27.Be4 de4 28.Rg4 Rd7 29.Re4 Nd6 30.Rg4 g6 31.Be5 Nc8 32.Rf6 Ne7 (33.Rd4 Rad8–+) 0–1. Sturm,Max G – Heemsoth,Hermann, corr Dyckhoff mem–A, 1954.

7.d4 0–0 8.Nbd2 cd4 9.ed4 a6 10.c4 ab5 11.c5 Bf4 12.Bb5 Ne4 13.Nb3 Qc7 14.g3 Bh6 15.0–0 b6 16.c6 Nb8 17.Qc2 Ba6 18.a4 Nd6 (18...Rc8 19.Ne5+=) 19.Ba3 (19.Qe2 Nc4 (worse is 19...Nb5 20.ab5 Bb5 21.Qb5 Nc6 22.Ra8 Ra8 23.Bc1+/–) 20.Ne5 Nb2 21.Qb2 Bg5=) 19...Rc8+= 20.Ne5?? (better is 20.Bd6 Qd6 21.Ne5+=) 20...Nb5–+ 21.ab5 Bb5 22.Rfb1 Ba4 23.Bc1 Bc1 24.Rc1 f6 25.Nd3 Nc6 (worse is 25...Qc6 26.Qe2 Qd7 27.Rc8 Qc8 28.Nf4–+) 26.Rab1 Qd7 27.Qb2 Bb3 28.Qb3 Nd4 29.Rc8 Rc8 30.Qb6 e5 31.Qa6 Qf5 32.Rb4 Nf3 33.Kg2 e4 34.Nf4 (34.Ra4 g5 35.Rb4 ed3 36.Qa1–+) 34...Nh4 35.Kf1 (35.Kg1 Rc1 36.Qf1 Nf3 37.Kg2 Rf1 38.Rb8 Kf7 39.Rb7 Ke8 40.Kf1–+) 35...Rc1 36.Ke2 Qg4 0–1. misho56 (2050) – kantlooz (1950), gameknot.com, 2012.

7.d4 c4 8.a4 =+.

7.Be2 0–0 8.0–0 Qc7 9.c4 e5 10.h3 e4 11.Nh4 Be5 12.Qc2 Bb2 13.Qb2 dc4 14.Bc4 Nb6 15.Be2 Qe7–+ 16.g4 Ng4 17.Nf5? Bf5 18.hg4 Bg4!! 19.Bg4 Qg5 20.f3 ef3 21.Rf3 Qg4 22.Kf2 Nc4 23.Qc2 Qh4 24.Kg2 Ne5 25.Rg3 Ng4 26.Qf5 Qh2 27.Kf3 h5 28.Qf4 Rfe8 29.Rg4 hg4 30.Qg4 Re6 (31.Qf4 Qh5 32.Kf2 Rf6 33.Qf6 gf6–+) 0–1. Lielmezs,G – Nemec,Z, IECG, 2004.

7.Be2 0–0 8.0–0 e5 9.c4 e4 10.Ng5 (10.Ne1!?–/+) 10...h6 11.Nh3 dc4 12.Bc4 Ne5 13.Ba2 (13.Be2!?–/+) 13...Bg4 14.Qc2 Nf3! 15.gf3 Bh3 16.Re1 ef3 17.Qc4 (17.Qd1 Bh2! 18.Kh2 Ng4 19.Kg3 Qd6 20.Kf3 Nh2 21.Ke2 Bg4 22.f3 Nf3 23.Rh1 Ne5 24.Kf1 Qf6 25.Kg1 Bd1 26.Be5 Qe5 27.Nc3–+) 17...Ne4!! 18.Qe4 (18.Qe4 Qg5 Mate attack) 18…Qg5 (18...Qg5 19.Qg4 Qg4 20.Kh1 Qg2#) 0–1. Neumann,Frank (1650) – Hahner,Anton (2365), RSS7E schnell–46, 2009.

7.Be2 0–0 8.0–0 e5 9.d4 cd4 10.ed4 e4 11.Nfd2 Qe7 (11...Qc7 12.h3+=) 12.c4 e3 13.Nf3 (13.fe3!? Qe3 14.Kh1+=) 13...ef2 14.Kf2 (14.Kh1!? Re8 15.Nc3–/+) 14...Re8 15.Re1?? (better is 15.c5 Ng4 16.Ke1–+) 15...Qe3 16.Kf1 Ng4 (16...Ng4 17.cd5 Qf2#; 16...Ne4 17.cd5 Qf2#) 0–1. Neumann,Frank (1650) – Boecker,Marcus (2180), RSS7E–76 remoteschach.de, 2008.

7.Be2 Qc7 8.0–0 0–0 9.c4 b6 10.Nc3 Bb7 11.Qc2 Rad8 (11...dc4 12.h3+=) 12.a4 (better is 12.cd5!? Nd5 13.Ne4=) 12...dc4–/+ 13.Ng5 Bh2 14.Kh1 Bd6 15.Nf3 Ng4?? (15...Bf3 16.Bf3 Ne5–+) 16.g3?? (better is 16.Ng5 Ndf6 17.Bg4+=) 16...Nge5 17.e4 Nf3 18.Bf3 Ne5 19.Bg2 Nd3 20.Kg1 Rd7 21.Ne2 Nb2 22.Qb2 Be5 23.Nc3 Rfd8 24.Rad1 Rd3 25.Rfe1 Bc3 26.dc3 Rd1 27.Rd1 Rd1 28.Kh2 Qe5 29.Qe2 Rd3 30.Qc2 Qc3 31.Qc3 Rc3 32.Kh3 Rc2 33.f3 Rd2 34.g4 c3 (34...c3 35.a5 ba5–+) 0–1. Neumann,Frank – Marino,Thierry, RN–2011–0–00434, 2011.

7.Be2 Qc7 8.c4 0–0 +=.

7.Be2 Qc7 8.d4 c4 9.0–0 Ne4 10.Nc3 f5 (10...Ndf6+=) 11.Ne4 (better is 11.a4=) 11...fe4–/+ 12.Ng5 Nf6 (12...Bh2 13.Kh1 Nf6 14.Bh5 g6 15.Be2–/+) 13.f4 (13.h4 c3 14.Bc1 0–0–/+) 13...ef3! 14.Bf3 (14.Bf3 Bh2 Combination; 14.Rf3 Bh2 Combination; 14.gf3 h6 Combination; 14.Nf3 Ng4 Combination) 14...Bh2 15.Kh1 0–0 16.Bg4 (16.e4 Bf4 17.Bc1 Bc1 18.Qc1 h6–+) 16...Qg3–+ (16...Ng4?! 17.Rf8 Kf8 18.Qg4=) 17.Ne6? (better is 17.Bh3 Qg5 18.Kh2 Qe3 19.Qe1–+) 17...Re8 18.Bc3 (18.Rf6 gf6 19.Qf3 Be6 20.Be6 Re6 21.Qd5–+) 18...Be6 (18...Ng4 19.Be1 Qe3 20.Qg4 Be6 21.Qh4–+) 19.Be6 Re6 20.Rf4 (20.Rf3 Qc7 21.Rh3–+) 20...Re3 21.Bd2 Qf4 22.Be3 Qe3 (22...Qe3 23.Qf3 Qd4–+) 0–1. Stefanova,Milena (2045) – Purtseladze,Maka (2325), WYG18, Batumi GEO, 2006.

7.c4 e5

8.d3 0–0 9.Be2 =+.

8.d3 d4=+ 9.Be2 0–0 =+.

8.d3 d4 9.Be2 a6 10.0–0 (10.ba6 Ra6 11.0–0 0–0=+) 10...ab5 11.Nbd2 (11.cb5 Nd5=+) 11...bc4–/+ 12.Nc4 Bc7 13.Qb3 0–0 14.a4 Nd5 15.Rfc1 (15.a5 Re8–/+) 15...Re8 16.a5 b5 (16...Ra6 17.Qb5–/+) 17.Na3 Bb7 18.Nb5 de3 19.fe3 (19.Nc7 Qc7 20.fe3 Ne3–/+) 19...Ne3 (< 19...Ba5 20.Nd6 Bc6 21.e4+/–) 20.Nc7 Qc7 21.Bc3 Bd5 22.Qb2 (22.Qa4 Qd6–/+) 22...Qd6 23.Qd2 Nf5 24.Bd1 (24.Ng5 Nd4 25.Bd4 cd4–/+) 24...Nd4 25.Nh4 (25.Ng5 Nf6–/+) 25...Nf8 (25...Be6 26.Nf3–/+) 26.Bd4 cd4 27.Bf3 (27...Bf3 28.Nf3–/+). Bonetti,Shane – Zmolil,Josef, TT–12 ETC, 2004.

8.d3 d4=+ 9.e4 a6 10.ba6 Qa5 11.Nbd2 Ra6 12.Be2 =+.

8.d3 d4=+ 9.e4 Nf8 10.g3 (10.Be2 a6=+) 10...Bg4 (10...Ne6 11.Bh3–/+) 11.Bg2 (11.Be2 Bd7=+) 11...Ne6 12.Qc2 (12.h3 Bh5=+) 12...Bc7 (12...a6 13.ba6 Qa5 14.Nbd2 Ra6 15.h3=+) 13.Nbd2 (13.0–0 0–0=+) 13...Bf3 (13...0–0 14.0–0=+) 14.Nf3 Ba5 (14...0–0 15.0–0=) 15.Kf1 Qc7 (15...Nd7 16.Bh3=) 16.Bh3= Rd8 (16...0–0 17.Kg2=) 17.Kg2 (17.Qa4 0–0=) 17...h6 (17...0–0 18.Qa4=) 18.Be6 fe6 19.h4 Ng4 20.h5 Rf8 21.Raf1 Qf7 22.Qe2+/– Bc7 23.a4 a6 24.Ba3 Bd6 25.Nd2 Nf6= 26.Nb3 ab5 27.ab5 b6 28.f3 Ra8 29.Ra1 Nh5 30.Rhg1 Qg6 31.Kf2 Be7–+ 32.Bc1?? Ra1 33.Na1 Nf6 34.Nb3 Nh7 35.Qa2 Ng5 36.Bg5 Qg5 37.Qe2 Qh5 38.Kg2 Bg5 39.Ra1 Kf7 40.Ra7 Kg8 41.Rb7 Bd8 42.Nd2 Qg5 43.Nf1 h5 44.Qd2 Qg6 45.Qe2 h4 46.g4 Qf6 47.Nh2 Qf4 48.Qf2 h3 49.Kh3=+ Rf6 50.Kg2= Rh6 51.Nf1 Bh4 52.Qd2+/– Qf6 53.Rb6 Bg5 54.Qd1 Bf4+= 55.Qe1 Be3 56.Ne3+– de3 57.Qe3 Qh4 58.Qg1 Qd8 59.Rc6= Qd3 60.Rc5 Qd2 61.Kg3 Qf4 62.Kg2 Qd2 63.Kg3 Rf6?? 64.b6?? Qf4–+ 65.Kf2 Qf3 66.Ke1 Qe4 67.Kd2–/+ Qf4 68.Kc3=+ Qf3 69.Kb4= Qb7 70.Rc7 Qb8 71.Qc5 Kh7 72.Qd6 Kh6 73.Kb5 e4 74.g5 Kg5 75.Rg7 (75...Kh6 76.Qb8 Kg7 77.b7+–; 75.Rc5 Kg4 76.Qb8 Rf1+–) 1–0. Glaria,Salvador (1865) – Barcena,Francisco (1985), Cto Autonomico Equipos, 2006.

8.cd5 Nd5 9.Qc2 Qe7 =.

8.cd5 e4 9.Ng1 Nb6 =.

8.cd5 e4 9.Ng5 0–0 (9...h6!? 10.Nh3 0–0+=) 10.d3 (10.Nc3 Re8 11.Qc2 Be5+=) 10...ed3 11.Bd3 h6 12.Ne4 Ne4 13.Be4 f5 14.Bf3 Ne5 15.0–0 f4 16.e4 Nf3 (16...Bd7!? 17.a4 a6+/–) 17.Qf3+/– Qg5 18.h3 Bd7 19.Nd2 Bb5 20.Rfe1 Rae8 (better is 20...Rfe8+/–) 21.Qg4 (better is 21.Qb3!? Ba6 22.e5+–) 21...Qg4+= 22.hg4 Bc7 23.Rac1 Ba5 24.Bc3 Bc3 25.Rc3 Bd7 (better is 25...b6!?+=) 26.Rc5+/– Bg4 27.f3 Rc8 (27...Bh5 28.d6 Bf7 29.Rc7+–) 28.Rec1 Rc5 29.Rc5 Rc8 30.Rc8 (30.Ra5 Rc1 31.Kf2 Bc8 32.Ra7 Rc2+–) 30...Bc8+/– 31.Nc4 b6 (31...Bd7 32.Ne5 Ba4 33.Ng6+–) 32.Ne5+– Kf8 (32...a5 33.d6 b5 34.Kf2+–) 33.Ng6 Kf7 34.Nf4 Kf6 (34...g5 35.Nd3+–) 35.Kf2 g5 36.Nd3 h5 37.Ke3 Ba6 (37...Ke7+–) 38.e5 Kf5 39.e6 Bb5 (39...Kf6+–) 40.g4! hg4 41.fg4 Kf6 42.Kd4 Ba4 (42...Ke7 43.Nf2+–) 43.Nf2 Bc2 (43...Ke7+–) 44.Ne4 Ke7 45.Ke5 (45.Ke5 Kd8 46.Ng5+–) 1–0. Gankin,Stanislav (2265) – Kovalev,Evgeny (2210), Sukharev Memorial – Open, 2008.

7.Be2 e5

8.0–0 0–0 =+.

8.0–0 e4 9.Ne1 0–0 10.Nc3 d4 11.ed4 cd4 12.Na2 Qc7 13.Bd4 Bh2 (worse is 13...Ba3 14.Nc3 Bd6 15.Kh1+=) 14.Kh1 Qf4 15.Be3 Qh4 16.d3?? (16.Bg5 Qg5 17.Kh2–+) 16…Bb8 (16...Bb8 17.Kg1 Qh2 mate; 16...Be5 17.Kg1 Qh2 mate) 0–1. Neumann,Frank – Vodicka,Milan (1990), OP–2012–0–02122, 2012.

8.d3 Qa5 9.Nbd2 –/+.

8.d3 0–0

9.c4 d4 =+.

9.0–0 Qc7

10.g3 b6 11.c4 e4 12.de4 de4 13.Nfd2 Ne5 14.Nc3 Qb7 15.a4 (15.Qb3 Be6–/+) 15...Bh3 16.Re1 Rad8 17.a5 Rfe8 18.a6 (18.Qb3 ba5 19.Nd5 Nd5 20.cd5 Bc7 21.Be5 Re5+=) 18...Qa8–/+ 19.Bf1? (better is 19.Qb3–/+) 19...Bf1–+ 20.Kf1 (20.Rf1 Bc7 21.Bc1 Nf3 22.Kg2 Be5–+) 20...Qc8 21.Qe2 (21.Qc2 Qh3 22.Ke2–+) 21...Qh3 22.Kg1 Nfg4 23.f3 Nf3 24.Nf3 ef3 (24...ef3 25.Qf3 Qh2 26.Kf1 Qb2 27.Qg4 Qc3–+) 0–1. Neumann,Frank (1650) – Wiese,Uwe (2330), RS–Pyramide remoteschach.de, 2008.

10.h3 e4 11.Nfd2 A) 11...ed3 12.cd3 (12.Bd3 c4 13.Be2 Bh2 14.Kh1 Be5 15.Be5 Ne5 16.Nc3) 12...h6 13.Qc2 a6 14.Nc3 Re8 15.ba6 ba6 16.Nf3; B) 11...Rd8 12.Nc3 (12.Qe1 ed3 13.cd3 Re8 14.Nc3 Ne5 15.Rc1 Ng6 16.Na4; 12.de4 de4 13.Qc1 b6 14.Nc4 Bb7 15.Nd6 Qd6 16.Nd2) 12...Nb6 13.a4 Bf5 14.a5 Nc8 15.de4 de4 16.Qe1.

10.h3 Re8 11.Nc3 A) 11...d4 12.Ne4 Ne4 13.de4 Nf6 14.Qd3 Bd7 15.c3 a6 16.a4; B) 11...Nb6 12.Nd2 (12.a4 e4 13.Nh4 Be6 14.a5 ed3 15.cd3 Nbd7 16.a6; 12.Qc1 e4 13.de4 de4 14.Nd2 Bf5 15.Nc4 Nc4 16.Bc4; 12.Rb1 e4 13.Nd2 Bf5 14.Bg4 Bg4 15.hg4 ed3 16.cd3) 12...e4 13.de4 de4 14.Qe1 Bf5 15.Nc4 Nc4 16.Bc4; C) 11...b6 12.Re1 (12.Nd2 Bb7 13.Qb1 h6 14.Qa2 d4 15.Nce4 Bd5 16.Qb1; 12.a4 Bb7 13.Nd2 h6 14.Qb1 e4 15.Rd1 Re7 16.Qa2; 12.Nh4 d4 13.Ne4 Ne4 14.de4 Nf6 15.Qd3 Bb7 16.f3; 12.Ra2 Bb7 13.Nd2 h6 14.Re1 Rad8 15.Qb1 e4 16.a4; 12.Qe1 Bb7 13.Nd2 c4 14.dc4 d4 15.Na2 Nc5 16.Nb4; 12.Qb1 Bb7 13.Nd2 e4 14.Re1 ed3 15.cd3 Nf8 16.Qc2; 12.Qc1 Bb7 13.Nd2 e4 14.de4 d4 15.Nd5 Nd5 16.ed5; 12.Rb1 Bb7 13.Nd2 Rad8 14.Qc1 e4 15.Re1 Ne5 16.de4) 12...Bb7 13.Nd2 Rad8 14.a4 h6 15.Qb1 e4 16.a5; D) 11...e4 12.Nh4 (12.Nd2 Nb6 13.de4 de4 14.Qb1 Bf5 15.Qa2 Rad8 16.Rfd1) 12...Nb6 13.a4 d4 14.a5 dc3 15.ab6 Qe7 16.Bc3.

10.h3 Re8 11.c4 d4 (11...e4 12.de4 de4 13.Nfd2 Bh2 14.Kh1 Be5 15.Nc3 b6 16.Qc2; 11...dc4 12.dc4 e4 13.Nfd2 b6 14.Nc3 Bb7 15.Qb3 Be5 16.Rfd1) 12.e4 (12.Nbd2 Rd8= (12...h6 13.Qb3 Nb6 14.a4 a5 15.ba6 Ra6 16.a5) 13.Ng5 Nb6 14.Nge4 Ne4 15.Ne4 Be7 16.ed4; 12.Qc2 h6 13.Nbd2 Nb6 14.a4 a5 15.ba6 Ra6 16.a5) 12...Nf8 13.Nh4 (13.a4 a6+= (13...h6 14.Nh4 Ne6 15.Nf5 Bf8 16.Nd2) 14.ba6 Ne6 15.ab7 Qb7 16.Bc1) 13...Ne6 (13...g6 14.Nd2 Ne6 15.Ndf3 Nf4 16.Qd2) 14.Nf5 (14.Bf3 Nf4+= 15.Qc2 g6 16.Nd2; 14.Nd2 Nf4 15.a4 g6 16.Nb3) 14...Bf8 15.Bc1 (15.Nd2 g6 16.Ng3) 15...a6 (15...Nf4 16.Bf4) 16.Nd2 (16.ba6 ba6 17.Ng3 Rb8+=; 16.Qc2–/+) 16...Nf4 (16...ab5 17.cb5 Nf4 18.Ng3–/+) 17.Ng3 ab5 18.cb5 Bd7 19.Rb1 Qc8 (19...b6 20.Nc4+=) 20.Nc4= Bh3 (20...Qd8 21.Bf3=) 21.gh3 Qh3 22.Bf4 ef4 23.Nh5 Nh5 24.Bh5 Re6 25.Bg4 (25.Qf3 Rg6! 26.Bg6 Qf3–+) 25...Rg6 26.f3 Qg3 (26...Qg3 27.Kh1 Rh6 28.Bh3 Rh3#) 0–1. Vrbica,Dragan – Brindza,Istvan (2070), 8th Open ch–Bajmok, Bajmok SCG, 2005.

10.h3 Re8 11.Nbd2 A) 11...b6 12.Nh4 (12.Nh2 a6 13.a4 ab5 14.ab5 Ra1 15.Qa1 Bb7 16.Ng4; 12.Re1 Bb7 13.Nh4 g6 14.a4 a5 15.ba6 Ba6 16.Nhf3; 12.a4 e4 13.de4 de4 14.Nh4 Rd8 15.f4 ef3 16.Bf3; 12.c4 e4 13.de4 de4 14.Nh4 Bh2 15.Kh1 Be5 16.Qc2; 12.c3 e4 13.de4 de4 14.Nh4 Ne5 15.Qc2 g5 16.f4; 12.Kh1 Bb7 13.a4 a6 14.ba6 Ra6 15.c4 e4 16.de4; 12.Rb1 Bb7 13.Re1 e4 14.de4 de4 15.Nh4 Rad8 16.Nf5; 12.Qe1 a6 13.a4 e4 14.de4 de4 15.Nh4 Ne5 16.Nc4; 12.Nb3 e4 13.de4 de4 14.Nfd2 Bh2 15.Kh1 Be5 16.c3) 12...a6 13.ba6 g6 14.c4 Ba6 15.cd5 Nd5 16.a4; B) 11...h6 12.Nh4 (12.Re1 Nb6 13.c4 a6 14.a4 ab5 15.ab5 Ra1 16.Qa1; 12.c4 e4 13.de4 de4 14.Nh4 Bh2 15.Kh1 Be5 16.Qc2) 12...Nb6 13.a4 Be6 14.a5 Nbd7 15.a6 Rab8 16.c4; C) 11...e4 12.de4 (12.Nh4 Bh2 13.Kh1 Be5 14.Qc1 Nb6 15.a4 Be6 16.a5) 12...de4 13.Nh4 Rd8 14.f4 ef3 15.Nhf3 Ne5 16.Ne5; D) 11...a6 12.a4 (12.ba6 Ra6 13.a4 Rb6 14.Rb1 e4 15.de4 de4 16.Nh4) 12...b6 13.Nh4 g6 14.c4 ab5 15.ab5 Ra1 16.Qa1.

10.h3 Re8 11.Nfd2 A) 11...b6 12.e4 (12.Nc3 Bb7 13.Re1 Rad8 14.a4 h6 15.Qc1 e4 16.de4; 12.a4 Bb7 13.Nc3 h6 14.Kh1 Rad8 15.Qb1 e4 16.a5; 12.Re1 a6 13.ba6 Ba6 14.Nc3 e4 15.de4 de4 16.Ba6; 12.Kh1 Bb7 13.Nc3 h6 14.Re1 Rad8 15.Qb1 e4 16.de4) 12...a6 13.a4 ab5 14.ab5 Ra1 15.Ba1 c4 16.Nc3; B) 11...Nb6 12.Nc3 (12.a4 d4 13.Ne4 Ne4 14.de4 Be6 15.Nd2 a5 16.ba6; 12.c4 d4 13.a4 Bf5 14.a5 Nbd7 15.a6 b6 16.e4) 12...e4 13.de4 de4 14.Qe1 Bf5 15.Nc4 Nc4 16.Bc4.

6.f4 Nbd7

7.Nf3 0–0 8.Be2 b6 9.0–0 Bb7 10.c4 dc4 11.Bc4 Bd5 12.Bd5 Nd5 13.Nc3 Nc3 14.Bc3 Nf6 15.Ne5 Be5 16.Be5 Qd3 17.Bf6+= gf6 18.Qg4 Kh8 19.Qh4 Rg8 20.Qf6 Rg7 21.Rf3 Kg8 22.Rf2 Qb5 23.f5 ef5 24.Qf5 Qb2 25.Raf1 Rf8 26.a4+= Qb4 27.Qd7 a6 28.Rf4 Qb3 29.h4 b5= 30.h5 h6 31.ab5+= ab5 32.Qd6 Qc2+= 33.R4f2 c4 34.Qh6 Qd3 35.Qb6 c3 36.dc3 Qc3 37.h6 Rg6 38.Rf6 Rf6+/– 39.Rf6 b4 40.Rf4 b3 41.Rg4 Kh8 42.Rb4 Qe1? 43.Kh2 b2?? 44.Qf6 Kh7 45.Qg7# 1–0. Rohrbacher – Kroner, Mannheim–Oftersheim, 1989.

7.Nf3 Qc7 8.c4 0–0 9.Be2 e5 10.fe5 Ne5 11.Qc2 dc4 12.Bc4 Nf3 13.gf3 Bg3 14.hg3= Qg3 15.Kf1 Qf3 16.Kg1 Qg3 17.Kf1 Bh3 18.Rh3 Qh3 19.Ke2 Qg2 20.Kd1 Qh1 21.Ke2 Nd5 22.Bd3 Qg2 23.Kd1 Qg1 24.Ke2 Rfe8 25.Qc4 Rad8 26.Bc1 g5–+ 27.Kf3 Nf4! 28.Bf1 Rd6 (29.Bb2 Rd2 30.Qe6 Qf1 (30...Rb2 31.Qe8 Kg7 32.Qe5 Kg6 33.Nd2 g4 34.Kf4 Qh2 35.Ke4 Qe5 36.Ke5 Rd2 37.Rc1=+) 31.Ke4 Qg2 (31...Rb2 32.Qe8 Kg7 33.Qe5 f6 34.Qb2 Qd3 35.Kf3 Qd1 36.Kf2 Nd3 37.Kg3 Nb2 38.b6–+) 32.Kf5 fe6 33.Kf6 Nh5 34.Ke5 Qd5#) 0–1. Pierred (2190) – Fernspiel (2475), Rated game, 5m + 0s, 2005.

7.Nf3 Qe7 8.Be2 0–0 A) 9.Nc3 e5 (9...g6 10.0–0 e5 11.fe5 Ne5 12.Qe1 Bf5 13.Qh4 Nf3 14.Rf3 d4) 10.fe5 Ne5 11.0–0 Bd7 12.Qe1 h6 13.Qh4 Ng6 14.Qe1 Be6; B) 9.Ne5 h6 (9...Rd8 10.0–0 Re8 11.a4 Bc7 12.Qe1 a6 13.Qh4 ab5 14.ab5 Ra1; 9...c4 10.0–0 a6 11.ba6 Ra6 12.Bd4 Ne4 13.d3 cd3 14.cd3 Nec5; 9...Nb6 10.0–0 Na4 11.Qc1 Qc7 12.Ra2 Ne4 13.d3 Nb2 14.Qb2 Ng5; 9...Bc7 10.0–0 a6 11.ba6 ba6 12.c4 Bb7 13.Nd7 Nd7 14.Qc2 Rab8; 9...Re8 10.0–0 h6 11.c4 Rf8 12.Qc2 Rd8 13.Nd7 Bd7 14.Nc3 a6) 10.0–0 Rd8 11.Qe1 Re8 12.a4 Bb8 13.Bf3 a6 14.Na3 Nb6; C) 9.Bf6 Qf6 (9...Nf6 10.0–0 Bd7 11.Ne5 d4 12.Bd3 g6 13.Qf3 Rab8 14.Bc4 Nh5) 10.Nc3 b6 11.0–0 Bb7 12.Bd3 h6 13.Qe1 c4 14.Be2 Nc5; D) 9.Ra2 e5 (9...Rd8 10.0–0 e5 11.fe5 Ne5 12.Nc3 Qc7 13.h3 Nf3 14.Bf3 Be6) 10.fe5 Ne5 11.0–0 Nf3 12.Bf3 Be6 13.Ra1 a6 14.Nc3 Be5; E) 9.Qc1 e5 (9...h6 10.0–0 e5 11.fe5 Ne5 12.Nc3 Be6 13.Qe1 Qc7 14.h3 Rfd8) 10.fe5 Ne5 11.0–0 Nc4 12.Nc3 Nb2 13.Qb2 d4 14.Nd1 Re8; F) 9.0–0 e5 10.fe5 Ne5 11.Nc3 Bd7 12.Qe1 h6 13.Qh4 Ng6 14.Qe1 Be6.

7.Nf3 Qe7 8.Be2 c4 A) 9.Nc3 0–0 (9...Nc5 10.0–0 0–0 11.Ne5 Be5 12.fe5 Nfd7 13.Na2 f6 14.ef6 Nf6; 9...h6 10.0–0 0–0 11.d3 cd3 12.cd3 e5 13.Qd2 ef4 14.ef4 Nc5) 10.Nd4 Nc5 11.0–0 Bd7 12.Bf3 e5 13.fe5 Qe5 14.g3 h5; B) 9.Nd4 Nc5 (9...0–0 10.0–0 Nc5 11.Nc3 Bd7 12.Qe1 a6 13.a4 ab5 14.Ncb5 Na4; 9...g6 10.Nc3 0–0 11.0–0 Nc5 12.Qe1 Bd7 13.Bf3 a6 14.a4 Nfe4) 10.0–0 Na4 11.Bc3 0–0 12.Bb4 Bd7 13.Bf3 a6 14.ba6 Ra6; C) 9.Bd4 a5 (9...h6 10.Nc3 Ba3 11.0–0 0–0 12.Qe1 Bc5 13.Qg3 Bd4 14.ed4 b6; 9...0–0 10.Nc3 Ba3 11.0–0 h6 12.Qe1 Bc5 13.Qg3 Bd4 14.ed4 b6; 9...e5 10.fe5 Ne5 11.Nc3 0–0 12.0–0 Bd7 13.Qe1 a6 14.Ne5 Be5; 9...b6 10.Ne5 Bc5 11.Nc3 Bb7 12.0–0 0–0 13.Qe1 a6 14.Qh4 ab5) 10.0–0 0–0 11.a4 e5 12.fe5 Ne5 13.Nc3 Bd7 14.Qe1 Rfe8; D) 9.Ra2 a6 (9...0–0 10.0–0 a6 11.Nc3 e5 12.fe5 Ne5 13.Nd4 Bd7 14.a4 g6; 9...e5 10.fe5 Ne5 11.0–0 0–0 12.Bd4 Ne4 13.Nc3 Nc3 14.Bc3 Bd7; 9...g6 10.Nc3 0–0 11.0–0 e5 12.fe5 Ne5 13.Qe1 Re8 14.Qh4 Nf3; 9...Nc5 10.Nc3 0–0 11.0–0 h6 12.Ne5 Be5 13.fe5 Nfe4 14.Ne4 Ne4; 9...h6 10.0–0 0–0 11.Nc3 e5 12.fe5 Ne5 13.Nd4 Bd7 14.Nf5 Bf5) 10.Nc3 0–0 11.0–0 e5 12.fe5 Ne5 13.Qe1 Bg4 14.Nd4 Rfe8; E) 9.g3 0–0 (9...Nc5 10.Nc3 0–0 11.a4 Nfe4 12.0–0 Bd7 13.Ne5 f6 14.Nd7 Qd7; 9...h6 10.Nc3 0–0 11.0–0 Nc5 12.a4 Qd8 13.Nd4 e5 14.fe5 Be5; 9...a6 10.Nc3 Nc5 11.0–0 0–0 12.a4 Bd7 13.Ne5 ab5 14.Nb5 Na4; 9...e5 10.0–0 0–0 11.Nc3 h6 12.Ne5 Ne5 13.fe5 Be5 14.Qe1 Be6; 9...g6 10.Nc3 0–0 11.0–0 Nc5 12.Ne5 Qc7 13.d3 Rd8 14.Rc1 a6) 10.Nc3 Nc5 11.0–0 a6 12.Ne5 Bd7 13.a4 ab5 14.Nb5 Na4; F) 9.0–0 0–0 (9...e5 10.fe5 Ne5 11.Bd4 0–0 12.Nc3 Bd7 13.Qe1 a6 14.Ne5 Be5; 9...h6 10.Qe1 0–0 11.Qg3 Nh5 12.Qh3 Nhf6 13.Qg3 Nh5 14.Qh3 Nhf6) 10.Nc3 e5 11.fe5 Ne5 12.Nd4 h6 13.a4 Bd7 14.Nf5 Bf5.

7.Nf3 Qe7 8.Be2 e5 9.g3 (9.fe5 Ne5 10.0–0 0–0+= (10...Bd7 11.Nc3 0–0 12.Qe1 h6 13.Qh4 Ng6 14.Qe1 Be6) 11.Nc3 Bg4 12.a4 h6 13.a5 Bf3 14.Bf3 Nc4; 9.Nh4 g6 10.0–0 ef4 11.ef4 0–0 12.g3 Re8 13.Re1 Nb6 14.Nf3 Bg4) 9...0–0 (9...e4 10.Nh4 Nb6 11.Bf6 Qf6 12.Nc3 0–0 13.a4 Qe6 14.0–0 d4; 9...h6 10.0–0 0–0 11.Nh4 g6 12.Re1 b6 13.c4 Bb7 14.cd5 Nd5) 10.0–0 Re8 (10...e4 11.Ng5–/+ (11.Nh4 Nb6 12.Bf6 Qf6 13.Nc3 Re8 14.a4 Bh3) 11...h6 12.Nh3 Nb6 13.Nf2 Bd7 14.Bf6 Qf6) 11.Re1 (11.Nh4 Nb6 12.fe5 (12.Be5 Be5 13.fe5 Qe5 14.c3 Ne4) 12...Be5 13.Be5 Qe5+= 14.c3 Ne4) 11...b6 (11...e4 12.Nh4 Nb6 13.Qc1 h6 14.a4 Bd7) 12.Nh4 (12.Nc3 Bb7 13.Nh4 Qe6 14.Bf3 e4) 12...g6 (12...Qe6 13.fe5 (13.f5 Qe7 14.c4 Bb7) 13...Ne5 14.Ng2+= (14.Nf3 Bb7) 14...g5) 13.Ng2 (13.Nc3 Bb7 14.Bf3 e4) 13...Bb7 14.Bf3 (14.Nc3 d4) 14...Rac8 (14...Qe6–/+) 15.c4 Qe6 (15...e4 16.Be2+=) 16.Qc2 (16.fe5 Ne5 17.Be5 Qe5=) 16...Qh3 17.cd5 ef4 18.ef4 Bf4 (worse is 18...Nd5 19.Re8 Re8 20.Qd3+=) 19.Nc3? (better is 19.Bf6 Nf6 20.Nc3+=) 19...Ne5–+ 20.Re5 Be5 21.Rf1 Bd4 22.Kh1 Ng4 23.Bg4 Qg4 24.Rf4 Qh3 25.Ne3 (25.Qd3–+) 25...Be3 26.de3 Re3 27.Qf2 Rce8 28.Ne4 R8e4 29.Re4 Re4 (better is 29...Bd5 30.Kg1 Be4 31.Bc3 Rc3 32.Qe2 f5 33.g4 Rc1 34.Kf2 Qh2 35.Ke3 Rc3 36.Kd2 Rc2 37.Ke1 Qe2) 30.Bc3 Bd5 31.Kg1 f5 (better is 31...Re3! 32.Bd2 Ra3–+) 32.Qd2 Re1! (32...Re1 33.Qe1 Qg2) 0–1. Khropova,L (2065) – Marin,Ir (2180), IX EICC w, Plovdiv BUL, 2008.

7.Nf3 Qe7 8.Be2 h6 A) 9.Nc3 g5 (9...0–0 10.0–0 e5 11.fe5 Ne5 12.Qe1 Bd7 13.Qh4 Ng6 14.Qe1 Be6) 10.g3 gf4 11.ef4 Rg8 12.d4 h5 13.Qd2 cd4 14.Nd4 h4; B) 9.0–0 0–0 (9...c4 10.Qe1 0–0 11.Qg3 Nh5 12.Qh3 Nhf6 13.Qg3 Nh5 14.Qh3 Nhf6; 9...g5 10.Be5 gf4 11.ef4 d4 12.Re1 0–0 13.Bd3 b6 14.a4 Nd5; 9...e5 10.Nh4 Nb6 11.fe5 Be5 12.Be5 Qe5 13.Nc3 0–0 14.Nf3 Qd6; 9...a5 10.c4 0–0 11.Nc3 b6 12.Qc2 Bb7 13.Bd3 Rfe8 14.Rae1 dc4) 10.Nc3 e5 11.Re1 e4 12.Nh4 Nb6 13.d4 g5 14.Nf3 ef3.

5.b5 Bd7

6.a4 Bd6 7.d3 a6 8.c4 dc4 9.dc4 Qc7 10.Be2 Bh2 11.Nf3 Bd6 12.Nbd2 e5 13.Ne4?? (better is 13.b6 Qb6 14.Be5 Be5 15.Ne5–/+) 13...Ne4–+ 14.Nh4 (14.Bd3 Nf6–+) Qa5 (14...Qa5 15.Kf1 Qb4–+) 0–1. aliwood – Scarian, SchemingMind.com, 2005.

6.a4 Bd6 7.Nf3!? =.

6.c4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 Bd6 10.d3 dc4 11.dc4 e5?? (better is 11...Bc7=) 12.Qd6+– Ng4 (12...Be6 13.Qd8 Kd8 14.Nf3+–) 13.Be5 Ne5 14.Qe5 Be6 15.Qg7 Qa5 (15...Ke7 16.Qg5 Kd6 17.Qf4 Ke7 18.Nf3+–) 16.Qc3 (better is 16.Nd2 Rf8 17.Qh7+–) 16...Qa2 (16...Qc3 17.Nc3 Nd7+–) 17.Qh8 Ke7 18.Nd2 Qa1 19.Qa1 1–0. misho56 (1660) – e_yahoo, gameknot.com, 2007.

6.c4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 Bd6 10.Be2 0–0 11.Nf3 dc4 12.Bc4 b6 (12...Nd5 13.Nc3=) 13.Na3 (13.0–0 Qe7=) 13...Nd5 (13...Qe7 14.0–0=) 14.0–0 Bc8 15.Be2 Bb7 (15...f6 16.Nc4=) 16.Nc4 Bc7 17.Bb2 (17.d4 Nd7=) 17...Nd7 18.Qb3 (18.d4 Qe7=) 18...N7f6 (18...Qe7 19.Ra1=) 19.Ra1 Bb8 (19...Qb8 20.Nfe5+=) 20.g3 (20.d4 Ne4+=) 20...h5 (20...Re8!?=) 21.Nfe5 h4 22.Nc6 Qc7?? (better is 22...Qd7+=) 23.Be5+– (23.Be5 Qc8 24.Nb8 (24.Bb8?! Bc6 25.Bd6 Bb7+–) 24...hg3 25.fg3+–; 23.Nb8?! Qb8 24.Be5 Qd8+/–) 1–0. Janek – ijmagen, internet, 2017.

6.c4 Qb6 7.a4 a5 8.Nf3 Be7 9.Qc2 h6 10.Be2 0–0 11.h4 Rd8 12.g3 Be8 13.Ng5. Villamil,Edison Enrique – Ruiz,Melissa (1900), Bogota COL, McGregor Open, 2011.

6.c4 dc4 7.Nc3 =.

6.c4 dc4 7.Bc4= a6 8.Qb3 Qc7 (8...ab5 9.Bb5 Bb5 10.Qb5 Qd7 11.Qb3=+) 9.Bf6 (9.Nc3 Be7=) 9...gf6 (9...ab5 10.Bb5 gf6 11.Nf3=) 10.Nc3 (10.b6 Qd6 11.Nf3=) 10...Qe5 (better is 10...Rg8!? 11.g3 Qb6=) 11.Nf3+= Qh5 (better is 11...Qc7!?+=) 12.ba6+– ba6? (better is 12...b5 13.Bb5 Bd6+–) 13.0–0?? (better is 13.Qb7 Bc6 14.Qc8 Ke7 15.Qc7 Ke8 16.Rb1 Bf3 17.Rb8 (17.gf3?! Nd7+/–) 17...Rb8 18.Qb8 Kd7 19.gf3 Qf3 20.Rg1+–) 13...Nc6 (13...Bc6 14.e4+=) 14.Qb7 (14.Be2 Qg6+=) 14...Rb8 (14...Ra7!? 15.Qb6 Rg8+=) 15.Qa6+/– Rg8 16.Kh1 (16.Be2 Qh3 17.g3 Bd6+/–) 16...Qg6 (better is 16...Rg2! 17.Kg2 Qg4 18.Kh1 Qf3 19.Kg1 Qg4 20.Kh1 Qf3 21.Kg1 Qg4 22.Kh1 Qf3=) 17.g3 Qh5 (18.Be2 Qg6+/–; 17...Qf5 18.Nh4 Qc2 19.Ra2+/–). SilentPlayer – maze, Live Game Caissa's Web, 2005.

6.c4 dc4 7.Bc4 a6 8.Nc3 ab5 9.Nb5 Be7 10.Nf3 Nc6 11.Qc2 0–0 12.Ng5 h6 13.h4 e5 (worse is 13...hg5 14.hg5 g6 15.gf6 Bf6 16.Nd6+/–) 14.0–0–0 (14.f4 e4 15.Bf6 hg5 16.Bg5+/–) 14...Qc8 (worse is 14...hg5 15.hg5 e4 16.gf6 Bf6 17.Qe4 Bb2 18.Kc2+=) 15.Ne4 Ne4 16.Qe4 Bf5 17.Qf3 Bg4 18.Qg3 Bd1 19.Kd1 Qf5 20.d3 Rfd8 21.Ke2 Kh8 22.Nc7 Ra4 23.Rc1?? (better is 23.Qf3 Qf3 24.Kf3 e4 25.Ke4–+) 23...Rc4!–+ 24.dc4 (24.Rc4 Qd3 Double attack (24...Qd3 Decoy); 24.dc4 Qh5 Double attack) 24...Qd3 25.Kf3 (25.Ke1 Qd2 26.Kf1 Qb2 27.Re1–+) 25...e4 26.Kg4 Qd7 (26...Qd7 27.Kf4 Bd6 28.Ke4 Bg3–+) 0–1. combijack (1695) – 121103 (1755), gameknot.com, 2010.

6.c4 dc4 7.Bc4= a6 8.Nc3 Bd6 =.

6.c4 Nbd7 7.Nf3 Bd6 8.Be2 0–0 9.0–0 dc4 10.Bc4 ab5 11.Bb5 b6 12.a4 Be7 13.d4 Ba6 14.Qb3 Bb5 15.Qb5 Qc7 16.Rc1 Qb7 17.dc5 Ra5 18.c6 Rb5 19.cb7 (19.Bf6!? Rc8 20.Nc3 (20.cb7?? Rc1 21.Ne1 Re1) 20...Qc6 21.ab5+=) 19...Rb2–/+ 20.Rc8 Nb8 (20...Ne4 21.Ne5 Nb8 22.Nd3+=) 21.Nbd2 Rb4 22.Ne5 Nd5 23.Ndf3 Bc5 (23...g5 24.h3–/+) 24.Nc6 (better is 24.a5 Na6 25.Nd7 ba5 26.Nc5 Nc5 27.Rc5 Rb7 28.Rca5=) 24...Na6?? (better is 24...Nc6 25.Rc6 Be7+=) 25.Nfe5 Ne7 (25...Rb2 26.Nd7 g6 27.Nf8 (27.Rf8 Bf8 28.Nf8 Kf8+=) 27...Bf8 28.e4+–) 26.Ne7 (26.Ne7 Be7 27.Nd7+–) 1–0. mikebaldini (1660) – atlas1 (1605), gameknot.com, 2016.

6.Be5 a6 7.Nc3 c4 =.

6.Be5 c4 +=.

6.Be5 Be7 =.

6.Nf3= a6 7.ba6 Na6 8.Be2 =+.

6.Nf3 a6 7.c4 dc4 8.ba6 ba6 (8...Na6 9.Nc3+=) 9.Bc4 Bb5 10.Qc2 Bc4 11.Qc4 Nbd7 12.0–0 Bd6 13.h3 0–0 14.Qc2 Qc7 15.Nc3 Ne5 16.Ne5 Be5 17.f4 Bc3 18.Bc3 (worse is 18.dc3 c4+=) 18...Qc6 (18...Nd7 19.Rab1=) 19.Bf6+= gf6 20.Rf3 Kh8 (better is 20...Qd6!?+=) 21.Qc3+– e5 22.fe5 Rg8 23.Raf1 fe5 24.Qe5 f6 25.Qf6 Qf6 26.Rf6 Rgd8 27.R1f2 Rd3 28.Rc6 Ra3 29.Rc5 Ra1 30.Kh2 Ra2 31.g4 (31.Rc7 a5+–) 31...Rb8? (better is 31...Rd8+–) 32.Kg3 a5 33.d4 Ra1 (33...Ra3 34.Kf4+–) 34.Re2 (34.Rf7 Re8+–) 34...Rg1 (34...a4 35.e4+–) 35.Kh2 Ra1 36.d5 a4 37.Rcc2 Rd8 (37...a3 38.e4+–) 38.e4 Re8 39.e5 a3 40.d6 a2 (40...Rd1+–) 41.Ra2 Ra2 42.Ra2 Re5 (42...Kg7 43.Ra7 Kg6 44.d7+–) 43.d7 (43.d7 Rd5 44.Ra8 Kg7 45.d8Q Rd8 46.Rd8+–) 1–0. mikebaldini (1700) – pedoncio (1720), gameknot.com, 2016.

6.Nf3= Be7 7.c4 0–0 8.Nc3 a6 9.a4 Qc7 (9...b6 10.d4=+) 10.Qb3 (10.Be2 Bd6=) 10...Rd8 (10...ab5 11.ab5 Ra1 12.Ba1=) 11.Be2 (11.cd5 ed5 12.Nd5 Nd5 13.Qd5 Bb5=) 11...Be8 (11...dc4 12.Bc4 ab5 13.Nb5=) 12.d4 (12.0–0 d4 13.b6 Qd7 14.ed4 cd4 15.Nd4 Qd4=) 12...dc4 (12...cd4 13.ed4 dc4 14.Bc4 ab5 15.ab5 Ra1 16.Ba1=+) 13.Bc4 (13.Qc4 Nd5=) 13...Nbd7 14.0–0 Nb6 (14...cd4 15.ed4 Rac8 16.Be2= (16.ba6? Qc4 17.Qc4 Rc4 18.ab7 Rb8–+)) 15.Be2 c4 16.Qc2 Nbd5 17.Rfb1 (17.ba6 ba6 18.Rfc1 Nb4+=) 17...Nc3 18.Bc3+= ab5 19.ab5 Nd5 20.Ne5 Nc3 21.Qc3+/– Ra1 22.Qa1 c3 23.b6 Qc8 24.Nc4 c2 25.Rc1 Qa8 26.Qc3 Rc8 27.Qc2 Bb5 28.Qb3 Qa6+= 29.Bf1 g6 30.Rc3 Bd8 31.h3 Bb6?? 32.Nb6+– Rc3 33.Qc3 Bf1 34.Qc8 Kg7 35.Nd7 Kh6 36.Qf8 Kh5 37.Nf6 Kg5 38.Ne4 (38...Kf5 39.f3 e5 40.Qf7 Qf6 41.Qf6#) 1–0. Sass,Andreas – Martens,Dirk, Schleswig Holstein–ch cand, 1991.

6.Nf3= Be7 7.Be2 0–0 =.

6.f4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 Qb6 10.Be5= Bd6 11.Nc3 Be5 (11...d4 12.Na4 Qc7 13.ed4 cd4 14.b6=) 12.fe5+= Ne4 13.Ne4 de4 14.Qg4 0–0 (14...Bb5!? 15.Qg7 Rf8=) 15.c4+= (worse is 15.Qe4 Bb5 16.Nf3 Bc6+=) 15...f5 16.ef6 Rf6 (16...Rf6 17.Be2 Combination) 17.Nh3 e5 18.Qe4 Bh3 19.gh3 Qa5? (better is 19...Qc7!?+/–) 20.Bd3 (worse is 20.Qb7 Rd6 21.Bd3 Qd8+–) 20...g6 21.Qb7 Qa1?? (better is 21...Qd8 22.Rf1 Rf1 23.Bf1 Qh4 24.Kd1 Qd8+–) 22.Ke2 Qh1 (22...Qb2 23.Rb1 Rf2 24.Kf2 Qd2 25.Be2+–) 23.Qh1 (23.Qh1 Nd7 24.Qb7+–; 23.Qb8?? Rf8 24.Qf8 Kf8–+) 1–0. Fritz 11 – anony, internet, 2013.

6.f4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 c4 10.Nc3 Bb4 11.Nf3 Bc3 12.Bc3 Bb5 13.Nd4 Bc6 14.d3 cd3 15.cd3 (worse is 15.Qd3 Ne4–/+) 15...0–0 16.Qd2 Na6 17.Be2 Nc5 18.Bb4 Qb6 19.0–0 Ra8 20.Rc1 Ncd7 21.Bd6 Qa5 22.Qa5 Ra5 23.Nc6 bc6 24.Rc6 g6 25.Rc2 Ra6 26.Bb4 Rb6 27.Bc3 Rc6 28.Bd1 Ra6 29.Kf2 h5 30.Bd4 Ng4?? (better is 30...Ra3+/–) 31.Bg4+– hg4 32.Rc8 Nf8 33.Bc5 Ra2 34.Kg3 f5 (34...Kg7 35.Bf8 Kh7 36.Bd6+–) 35.Rf8 Kg7 36.Rb8 Rc2 37.Rb7 Kg8 38.Bd4 Rd2 (38...Kf8 39.Rb2 Rc1 40.Rb8 Ke7 41.Rb7 Kd8 42.Bf6 Kc8 43.Re7+–) 39.Re7 Rd3 40.Re6 Kf7 41.Rf6 Kg7 42.Rd6 Kf7 43.Rd5 Ke6 44.Rd8 g5 (44...Rd2+–) 45.fg5 Rd1 46.g6 Rf1 47.g7 f4 (47...Rf3 48.gf3 f4 49.Kf4 gf3 50.g8Q Ke7 51.Qe8#) 48.Kg4 fe3 49.g8Q (49.g8Q Rf7 50.Qe8 Re7 51.Qg6#) 1–0. Janek – Evandro, internet, 2016.

6.a4 a6=+

7.c4 Be7 8.d4 =+.

7.c4 Be7 8.Nf3 =+.

7.Nf3 c4 =+.

7.Nf3 Bd6 =+.

7.c4 Bd6

8.Qf3 h6 =+.

8.Nf3 0–0

9.d4 b6 +=.

9.Be2 dc4 10.Na3 ab5 11.ab5 b6 +=.

9.Be2 dc4 10.Bc4 ab5 11.ab5 Ra1 12.Ba1 Re8 (12...Qe7 13.Be5=) 13.0–0 e5 (13...Nd5 14.Qc2=) 14.Qb3 (14.Ng5 Rf8=) 14...Be6 15.Be6 Re6 16.d3 h6 (16...Nbd7 17.Nc3=) 17.e4 (17.Nc3 Nbd7=) 17...Nh5 (17...Nbd7 18.Bb2=) 18.Nc3 Rg6 (18...Nd7 19.Nd5=) 19.Nd5+= Nd7 20.Bc3 Nhf6 21.Ra1 Nd5 22.Qd5 Now all is on e5 22...Qf6 (22...Qb8!?+=) 23.Ne1 (23.Kh1 Qf4 24.Qb7 Qg4+–) 23...b6 24.Qb7 Qe6 25.Ra8 (25.Ra7 Qb3 26.Qd7 Qc3 27.Qf7 Kh7+–) 25...Kh7 26.Qc8 (26.Bd2 Qg4 27.f3 Qe6+/–) 26...Nf8+= 27.Qe6 (27.Qd8 f5 28.Qb6 fe4 29.de4 Qc4=) 27...Ne6 (27...fe6? 28.Rd8 Be7 29.Rb8+–) 28.Ra6 Bc7 (28...Nd4 29.Bd4 ed4 30.Nf3=) 29.Nf3 (better is 29.Kf1+=) 29...Ng5? (better is 29...Nf4 30.Kf1 A) 30...Ng2? 31.Be5 Bd8 32.Bg3+–; B) worse is 30...Rg2 31.Ra7+/– (worse is 31.Be5 Be5 32.Ne5 Rh2–/+); C) 30...Re6+=) 30.Ng5+– (30.Ne5? Be5 31.Be5 Nf3 32.Kf1 Ne5–+) 30...hg5 31.Ra7 Bd8 (better is 31...Bd6+–) 32.Rd7 (32.Rf7?! Re6+–; 32.Be5?! Re6 33.Bb8 Kg6+/–) 32...Bf6 33.Rf7 g4 34.Rd7 (34.Rb7 Bg5 35.Be5 Re6 36.Bg7 Kg6+–) 34...Bg5 35.Rd5 (35.Be5 Bf6 36.Bg3 Bc3+–) 35...Bf6 (35...Bf4 36.Be5 Be5 37.Re5+–) 36.Be5 (36.Rd6 Bg5 37.Rg6 Kg6 38.Be5 Bd8+–) 36...Be5 37.Re5 Rd6 38.Rd5 (38.Kf1 Rd3 39.Re6 Rd4+–) 38...Rd5 39.ed5 Kg6 40.f3 (40.Kf1 Kf5 41.Ke2 Ke5+–) 40...gf3 41.gf3 Kf6 42.f4 Ke7 43.Kf2 Kd6 44.Ke3 (44.Kf3 Kd5 45.Ke3 g6+–) 44...Kd5 45.h3 c4 (45...g6 46.h4+–) 46.d4?? (46.dc4 Kc4 47.f5 Kb5 48.h4+–) +–. Potter,M – Lugo,R, Box Hill, 2004.

9.Be2 dc4 10.Bc4 Nd5 11.0–0= ab5 (11...Nb6 12.d3=) 12.ab5 Ra1 13.Ba1 Qb6 (13...Nb6 14.Be2=) 14.Qa4 (14.Nc3 Nc3 15.Bc3 Qc7+= (15...Bb5? 16.Qb1+–)) 14...Na6 (14...Nc7 15.Qc2 h6= (15...Bb5? 16.Qb2 f6 17.Nc3+–; 15...Nb5? 16.Qb2 f6 17.Nc3+–)) 15.d4 (better is 15.Bg7!? Kg7 16.Qa1 Nf6 17.ba6+=) 15...Nac7–/+ Increasing the pressure on the isolated pawn on b5 16.Na3 (16.dc5 Bc5 (worse is 16...Qc5 17.Bd4 Qb4 18.Qb4 Nb4 19.Nc3+=) 17.Nbd2 Ra8–/+) 16...Ra8 17.Qb3 Qa5 (17...cd4 18.Bd4 Qa5 19.Nc2 Bb5 20.Ra1 Bc4 21.Qc4=) 18.Bb2 cd4 (18...Qb4–/+) 19.b6 (19.Nd4!? Qa4 20.Ra1+=) 19...Nb6 (19...Qb6 20.Qb6 Nb6 21.Bd4 Ra3 22.Bb6–/+) 20.Nd4 (20.Bd4 Ncd5 21.Bd5 Qd5 (21...Qa3?! 22.Qa3 Ra3 23.Bb7=) 22.Qb6 Ba3–/+) 20...Ba3 (20...Qb4 21.Ra1–/+) 21.Ba3–/+ Nc4 (21...Qa3?! 22.Qb6 Ne8 23.Qb7=) 22.Qc4 Nb5 (22...e5 23.Nb3 Qb6 24.Bc5–+) 23.Bb4 Qa4 (better is 23...Qc7 24.Qc7 Nc7–/+) 24.Rb1?? (better is 24.Nb3 Nd6 25.Qd4 Qb3 26.Bd6–/+) 24...Na3–+ 25.Qb3 (25.Qc1 Nb1 26.Qe1 Na3–+) 25...Nb1 26.Qb1 Qb4 (26...Qb4 27.Qc1 Qd2–+) 0–1. Lange,David – Baasto,Espen Peder, NM Moss Norway, 2006.

9.Be2 dc4 10.Bc4 Qe7 11.0–0 =.

9.Be2 Re8 10.0–0 +=.

6.c4 a6

7.a4 a5 8.Nf3 Bc8 9.Be2 Nbd7 10.0–0 Be7 11.d3 0–0 12.Nbd2 b6 13.d4 Bb7 14.Rc1 cd4 (14...Rc8 15.cd5 Nd5 16.Nc4=) 15.Bd4 (15.Nd4 Nc5+=) 15...Rc8= 16.cd5 Rc1 17.Qc1 Bd5 18.Ne5 (18.Bc4=) 18...Nc5 (18...Ne5 19.Be5 Qa8 20.f3=) 19.Qa1 (19.Nc6 Bc6 20.bc6 Na4+=) 19...Nfe4 (19...Qc7!?=) 20.Ne4+/– Be4 21.Bf3 (21.Nc6!? Bc6 22.bc6+/–) 21...Bf3= 22.Nf3 f6 23.Rd1 Qe8 (23...Qc7 24.Bc5 Bc5 25.Nd4=) 24.Qa2 (24.Bc5 Bc5 25.Qb1 e5=) 24…Qf7 ˝–˝. De Kruif,Kees (2075) – De la Rubia Ramirez,Dulce Nombre (1850), Gibraltar Challengers Week2, 2007.

7.a4 ab5 8.ab5 Ra1 9.Ba1 Bd6 =.

7.a4 ab5 8.ab5 Ra1 9.Ba1 Be7 10.Nf3 0–0 11.Be2 dc4 12.Bc4 Nd5 13.0–0 Bf6 14.Bf6 Qf6 15.d4 Nb6= 16.Qd3 cd4 17.Nd4 e5=+ 18.Ne2 Bf5 19.e4 Rd8 20.Qc2 Rc8 21.ef5 Nc4 22.Rc1= h6 23.Qe4+/– Nd6 24.Rc8 Nc8 25.Qb7 Qd8 26.Nbc3 Nd6 27.Qd5 Qe7 28.h3 Nf5+= 29.b6 Qd6 30.Qd6 Nd6+= 31.Nd5 Kf8 32.Nec3 Ke8= 33.Kf1 Kd7 34.Nb4 Nc6 35.Nbd5 Nb8 36.Nb4 Nc4 37.Ncd5 Kd6–/+ 38.Nc7 Nb6 39.Ne8=+ Kc5 40.Nd3 Kd4 41.Ke2 g6–/+ 42.Nd6 f6 43.f4 N8d7 44.Nf7 e4 45.Nf2 h5 46.g4 h4 47.Nd6 Nc5 48.Nb5–/+ Kc4 49.Nd6 Kd5 50.Nb5 Nba4 51.Ke3=+ f5 52.gf5 gf5 53.Nd4 Nb6 54.Nf5 Nc4 55.Ke2 Ne6 56.Ne3 Kd4 57.Nf5 Kd5 58.Ne7 Kd4 59.Nc6?? Kd5?? 60.Nb4 Kd4 61.Nc2?? Kd5?? 62.Ne3= Kd4 63.Nf5 ˝–˝. Kuipers,Stefan – Miedema,Roi, NED–ch U14 Schagen, 2003.

7.a4 ab5 8.cb5 Qa5 9.Bc3= Qc7 10.Nf3 Be7 11.Ne5 (11.Be2 0–0=) 11...0–0=+ 12.Nd7 Nbd7 13.a5 b6 14.a6= Rfd8 15.d4 Ne4=+ 16.Bb2 Rdc8 17.Bd3 Ndf6 18.0–0 c4 19.Bc2 c3 20.Ba3+= Qd7 21.Be7+/– Qe7 22.f3 Nd6 23.Qd3 Qd7 24.Nc3 Rc7 25.e4 Nc4? 26.e5+– Nh5?? 27.Qh7 Kf8 28.Qh5 Raa7 29.Qh8 Ke7 30.Qg7 Ne3 31.Qf6 Ke8 32.Qh8 Ke7 33.Qf6 Ke8 34.Qh8 Ke7 35.Qh4 Ke8 36.Rfc1 Rc3 37.Ba4 Rc4 38.Rc4 Nc4 39.Rc1 Qe7 40.Qh8 Kd7 41.Qb8 Qb4 42.Qa7 Ke8 43.Qb8 Ke7 44.Qc7 Kf8 45.Qd8 Kg7 46.Qg5 1–0. maxii – symbol, Live Game Caissa's Web, 2004.

7.a4 ab5 8.cb5 Bd6 9.Nf3 =+.

7.a4 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 Be7 11.Nf3 0–0 12.0–0 Ne4 13.Qb3 Nd6 14.d3 Bf6 15.Be5 Qe7 16.Nbd2 Be5 17.Ne5 Rd8 18.Rb1 Be8 19.Qa2 Nd7 20.Nd7 Qd7 21.Nf1 Qc7 22.Qa7 White plans b6 22...Nc8 23.b6 Qe7 24.Qa5 Bc6 25.e4 Qg5 26.Nd2 Nd6 27.Qa2 Nc4 28.Nf3 Qe7 29.Qc4 Ra8 30.Ne5 Be8 31.d4 Ra4 (better is 31...cd4 32.Qd4 Rd8=) 32.Qc5+– Qd8 33.Nc4 Bc6 34.f3 h6 35.Rd1 (35.Na5!? Ra5 36.Qa5 Qd4 37.Kh1 Qd6+–) 35...Qh4 36.Na5 (better is 36.Ne5 Ra2 37.Kh1+/–) 36...Ra2 37.Rf1 Qf4 38.Nc4 Rc2 (better is 38...Be4!? 39.Qe5 Qe5 40.Ne5 f6 41.fe4 fe5=) 39.Qe5+/– Qh4 40.Ne3 Rb2? (better is 40...Rd2+/–) 41.d5+– Bb5 (41...Rb6 42.Qb8 Kh7 43.dc6 Qg5+–) 42.Qb2 Bf1 43.Nf1 ed5 44.ed5 Qc4 45.Ne3 Qd3 46.Kf2 f5 (46...h5 47.Qe5 Qd2 48.Kg3+–) 47.Qc2 (47.Qc2 Qc2 48.Nc2+–) 1–0. Dzuris,Ivan (1775) – Brutovsky,Frantisek (1895), SVK–chT2D, 2007.

7.ba6 Na6 8.Be5 =+.

7.cd5 ed5 8.a4 ab5 9.ab5 Ra1 10.Ba1 Bd6 11.f4 0–0 12.Nf3 Bg4 13.Be2 Nbd7 14.0–0 c4 15.Bf6 Qf6 (worse is 15...gf6 16.Nd4 Be2 17.Qe2+/–; 15...Nf6?! 16.Nc3+=) 16.Nc3 Nb6 17.d4 Qe6 18.Ne5 Be2 19.Qe2 f6 20.Nf3 Re8 21.Kf2 Bb4 22.Rc1 Bd6 (22...Bc3!? 23.Rc3 Qe7–/+) 23.Re1 (23.Rf1 Ra8–/+) 23...Qf5 24.Rd1? (better is 24.e4 Qc8 25.e5=) 24...Bf4!–+ 25.Qb2 (25.ef4 Re2 Pinning (25...Re2 Deflection)) 25...Be3 26.Kf1 g5 27.h3 h5 28.Ne2 h4 29.Qa3 Qe6 (29...g4 30.hg4 Qg4 31.Qd6–+) 30.Ra1 (30.Re1 Qe7 31.Qa7 Nc8–+) 30...Ra8 31.Qb2 Ra1 32.Qa1 Qd6 (better is 32...Qe4!?–+) 33.Qa7–/+ Qc7 34.Nc3? (better is 34.Qa3!? Bf4 35.Nf4 gf4 36.Qc5 Qc5 37.dc5–+) 34...Bf4 35.Kf2 Bd6 36.Ke2 Qe7 37.Kd2 Qc7 38.Ke2 Bb4 39.Kd2?! Qf4 40.Kc2?? Qc7 41.Kb2?? Kg7 42.Kc2 Kg6 43.g4 hg3 44.Ne2 g2 45.Qa1 Qe7 46.Neg1 Qe4 47.Kc1 Qe3 48.Kc2 Qd3 49.Kc1 Ba3 0–1. Uguzel,Pinar – Alev,Gonulden Seda, TUR–ch (Women), 2008.

7.cd5 ed5 8.ba6 Na6 9.Nf3 =+.

6.c4 Be7

7.Qc2 0–0 8.Nf3 Ne4 9.cd5 ed5 10.Nc3 Nc3 11.Bc3 b6 12.Be2 Bf6 13.Bf6 Qf6 14.0–0 Bf5 15.Bd3 Bd3 16.Qd3 Rd8 17.Qc2 Nd7 18.a4 Ne5 19.Ne5 Qe5 20.Rad1 Rac8 21.d3 Rd6 22.d4 Qh5 23.dc5 Rh6 24.h3 Rc5 25.Qd3 Rg6 26.e4 h6 (better is 26...Qg5!? 27.Qf3 Rd6+=) 27.ed5+/– Rd5 1–0. combijack (1745) – latinoeh (1665), gameknot.com, 2010.

7.Nf3 0–0 8.Qc2 a6 9.Ng5 h6 10.Bf6 hg5 11.Be7 Qe7 12.Nc3 d4 13.Ne4 f5 14.Ng3 e5 Black prepares f4 15.ed4 ed4 16.Kd1 f4 17.Ne4 Bf5 18.Bd3 Bg4 19.f3 Bh5 20.h3 Nd7 21.Kc1 ab5 22.cb5 Ne5 23.Bc4 (23.Nc5? Rfc8 24.Kd1 Qc5 25.Bh7 Kf8 26.Qc5 Rc5–+) 23...Kh7?? (better is 23...Nc4 24.Qc4 Bf7–/+) 24.Nf6 1–0. combijack (1780) – cviersen (1885), gameknot.com, 2011.

7.Nf3 0–0 8.d4 a6 9.dc5 Bc5 10.Nc3 =.

7.Nf3 0–0 8.d4 Ne4 9.Nc3 Qa5=+ 10.Qa4 Qa4 11.Na4= dc4 12.Bc4 Nd6 13.Be2 cd4 14.Nd4 e5 15.Nf3 Bb5 16.Bb5+= Nb5 17.Ne5 Bf6 18.0–0 Re8= 19.Rfd1? Be5?? 20.Be5= Nc6 21.Bb2 Rad8 22.Nc3 Nd6 23.Ne2 Nc4=+ 24.Bd4 Nd4 25.Rd4 Rd4 26.Nd4= g6 27.a4 Rc8 28.Rc1 Nb6 29.Rc8+= Nc8 30.Kf1 Nb6 31.a5 Nc4 32.Nb3 Kf8 33.Ke2 Ke7 34.h3 Kd6 35.Kd3 b5 36.ab6 Nb6 37.Kd4 Nd7 38.Nd2 f5 39.e4 fe4 40.Ke4 Nc5 41.Kf4 Kd5 42.Ke3 a5 43.Nb1 Kc4 44.f4 Na4 45.Nd2= Kb4 46.Kd3 Nc3 47.g4=+ a4 48.Kc2? Nd5 49.f5 gf5 50.gf5 Ne3 51.Kb2 Nf5 52.Nb1 Ne3 53.h4 Nf5 54.Nc3? Ne3?? 55.Na2 Ka5–+ 56.Nc3 Nc4 57.Ka2 Kb4 58.Nd5 Kc5 59.Nf6 ˝–˝. Van Splunter,Arjen – Vanderhallen,Nicolas, Hengelo op U14, 2001.

7.Nf3 0–0 8.Be2 Qb6 9.a4 dc4 10.Bc4= a6 11.a5 Qd8 12.b6 Nd5 13.0–0+= Bf6 14.d4 cd4 15.Bd4 Bd4 16.Nd4 Nc6 17.Bd5+/– ed5 18.Nc3 Nd4 19.Qd4 Bc6 20.Rfd1 Qg5 21.Nd5 Rad8 22.e4 Rd7 23.Qc4 Rfd8 24.h3 h6 25.Rd4 Kh7 26.Rad1+/– f6 27.Ne7 Rd4 28.Rd4+– Rd4?? 29.Qg8# (29.Qd4?! Qc1 30.Kh2 Qf4 31.g3 Qe4 32.Nc6 Qc6 33.Qd3 g6+=) 1–0. Schmidbauer,Josef (1635) – Leibl,Ludwig (1865), RLSO_Freyung–Straubg, 2002.

7.Nf3 a6 8.Qa4 =+.

5.b5 Nbd7

6.c4 Qa5 7.Nf3 Bd6 8.a4 0–0 9.Be2 e5 10.cd5 e4 11.Ng5 h6 12.Nh3 Nd5 13.Bc4 Nb4 14.Bc3 Ne5 15.Na3 Nbd3 16.Bd3 Nd3 17.Kf1 Qd8 18.Qh5 Kh7 19.Nc4 Bc7 20.f4 g6 21.Qe2 Be6 22.Nb2 Ba5 23.Nd3 ed3 24.Qf3 Bc3 25.dc3 d2 26.Nf2 Bc4 27.Kg1 Qa5 28.e4 Bb5 29.g4? Rad8 30.f5 Bc6 31.h4 c4 32.Kh2 Qe5 33.Kg2 Kg7 34.Rhd1 Rd7 35.Ra2 Rfd8 36.Qe3 Rd3 37.Nd3 Rd3 38.Qf2 Qe4 39.Kh2 Qg4 (40.Qd4 Rd4 41.f6 Kf8 42.Rdd2 Qh4 43.Kg1 Qe1 44.Kh2 Rh4#) 0–1. Mandak,P – Voracek,Miroslav (2160), CZE–chT2 Czechia, 1999.

6.c4 b6 7.Nf3 Bb7 8.Be2 Bd6 9.d3 Qc7 10.h3 (10.cd5 Nd5 11.Qc2 0–0+=) 10...0–0 11.Nbd2 a6 12.a4 ab5 13.ab5 e5 14.cd5 Nd5 15.Rc1 Ra5 16.d4 ed4 17.Bd4 Qb8 18.Bc3 (18.Bb2!?=) 18...Nc3–/+ 19.Rc3 Ne5 20.Qb1 Nf3 21.Bf3 Be5 22.Rb3?? (better is 22.Rc1–/+) 22...Ra1–+ 23.0–0 Rb1 24.Rfb1 Rd8 25.Nc4 Bf3 26.Ne5 (26.gf3 Bc7 27.Ra3 Qb7–+) 26...Qe5 27.gf3 Qf5 28.Kg2 Rd6 29.f4 (29.e4 Rg6 30.Kf1 Qh3 31.Ke2 f5–+) 29...Rg6 30.Kf1 Qh3 (30...Qh3 31.Ke2 Qg4 32.Kf1 Rh6–+) 0–1. Kowal,Agnieszka – Wierzbowska,Aleksandra, d16 Poland, 2014.

6.c4 b6 7.Nf3 Bb7 8.Be2 Be7 9.0–0 0–0 10.d4 Qc7 11.Nbd2 Rad8 12.Rc1 dc4 (12...a5 13.Bd3=) 13.Bc4 Ne4 (13...Bd6 14.Qe2=) 14.Qc2 (14.Bd3 Nd2 15.Nd2 f5+=) 14...Nd2= 15.Nd2 Nf6 (15...Bd6 16.h3=) 16.h3 (16.Be2 Bd6 17.f4 Qd7+=) 16...Qd7 (better is 16...cd4!? 17.Bd4 Ba3–/+) 17.Rfd1+= Rc8 (17...cd4 18.Bd4 Ba8 19.Qa4+=) 18.dc5+/– bc5 (18...Rc5? 19.Bf6 Bf6 20.Nb3+–) 19.Nf3 Qc7 (19...Qe8 20.Ng5 g6 21.e4+/–) 20.Be5 (better is 20.Ng5 h6 21.Bf6 hg5 22.Bc3+/–) 20...Qa5? (better is 20...Be4 21.Bc7 Bc2 22.Rc2 Rc7+=) 21.Ng5+– g6? (21...Rfd8 22.Rd8 Bd8 23.Ne6 fe6 24.Be6 Kh8 25.Bc8 Bc8 26.Qc5+–) 22.Qb2 (22.Ne6 fe6 23.Be6 Kh8+–) 22...Ne4 (22...Ne8 23.Ne6! Qb6 24.Nf8 Kf8+–) 23.Rd7 (better is 23.Ne6 Rfe8 24.Rd7+–) 23...Bg5+= 24.Rb7 Rfd8 25.Be6 (better is 25.Ra1!?+/–) 25...fe6= 26.Rg7 Kf8 27.Rh7 Do you see the mate threat? 27...Qd2?? (better is 27...Kg8 28.Rg7 Kf8 29.Rg6 Rd7+/–) 28.Bd6!! Qd6 (28...Rd6 29.Qh8 Theme: Double Attack) 29.Qh8# 1–0. Gross – Tischel, tt Dt.Bank–Bundesbank, 1987.

6.c4 Bd6 7.Nc3 =+.

6.c4 Bd6 7.Nf3 +=.

6.c4 Bd6 7.f4 0–0 8.Nf3 Qe7 9.Ne5 Bc7 10.Bd3 Ne5 11.fe5 (11...Nd7 12.cd5 ed5 13.Qc2 Qh4 14.g3–/+). bentengutama – rajbajaj (2370), net–chess.com, 2002.

6.c4 Be7 7.Nf3 0–0 8.Qc2 h6 (8...a6 9.Nc3+=) 9.Bd3 (9.Be2 dc4 10.Bc4 a6=) 9...Nb6 (9...Bd6 10.0–0=) 10.a4 (10.cd5 ed5 11.0–0 c4=) 10...Nc4+= 11.Bc4 dc4 12.Qc4 Qd5 (12...b6 13.Nc3=) 13.Qc2 (13.Qd5 Nd5 14.d4 Nb4=) 13...Rd8 (13...a6 14.Nc3 Qh5 15.Ne2+=) 14.Nc3 (14.Bf6 Bf6 15.Nc3 Qc4+=) 14...Qh5 15.Ne2 Nd5 16.Ng3 (16.0–0 Nb4 17.Qc3 f6=) 16...Nb4+= 17.Qc3 Threatening mate: Qxg7 (17.Nh5? Nc2 18.Ke2 Na1 19.Ra1 f6–+) 17...Qg6 18.Ne5 Qc2 19.Rc1 (19.Nc6 Bf6 20.Nb4 Qb2 21.Qb2 Bb2 22.Rb1+=) 19...Qc3 (better is 19...Qa4 20.Qc4 f6–+) 20.dc3= (worse is 20.Rc3 Bf6 21.Rb3 Be5 22.Be5 Nd3 23.Rd3 Rd3–+) 20...Nd3 (20...Nd5 21.c4 Nb6 22.a5=) 21.Nd3 Rd3 22.Ke2 c4 23.Rhd1 Rd1 24.Rd1 e5 25.Ne4 Bf5 26.f3 a6+= 27.b6 a5 28.Rd5 Ra6 29.Re5+= Rb6 30.Bc1 Be6 31.Ra5 Rb1 32.Bd2 Ra1 33.Rb5 Bc8 34.a5+/– Ra3 35.Nc5 Bf6? 36.Nb7 Bc3 37.Bc3+– Rc3 38.a6 Ra3 39.Rc5 Bd7 40.Na5 Ra2 41.Ke1 c3 42.a7 Ra1 43.Kf2 c2 44.a8Q (44.a8Q Kh7 45.Qe4 g6 46.Qc2+–) 1–0. Tomicek,Alfons – Svarovsky,Miroslav, MOR–chT2N, 2002.

6.c4 Be7 7.Nf3 0–0 8.d4 a6 +=.

6.c4 Be7 7.Nf3 0–0 8.d4 Qc7 9.cd5 Nd5 10.Be2 Bf6 11.0–0 b6 12.Nc3 Bb7 13.Ne4 Be7 14.Ng3 Rac8 15.Rc1 Qb8 16.Nh5 N7f6 17.Ne5 Rfd8 18.Qa4 Nh5 19.Bh5 g6 20.Be2 Bd6 21.Ng4 f5 22.dc5 bc5 23.Nf6 Nf6+= 24.Bf6 Rf8 25.Qh4 Bh2 26.Kh1 Bd6 27.Rfd1 Rf7 28.Bc4 Re8 29.Rd2 Be5 30.Be6 Bf6?? 31.Qf6+– Re6 32.Qe6 (32.Qe6 Qc7 33.Rd6+–) 1–0. Cagara,Paulina (1800) – Paterek,Katarzyna, Poland–ch U16 Girls, 2000.

6.c4 Be7 7.Nf3 Nb6 8.cd5 ed5 9.Be2 +=.

6.d3 Be7 7.c4 0–0 8.Nf3 Qc7 9.d4 b6 10.Ne5 Bb7 11.f4 Rfd8 12.Qc2 cd4 13.ed4 dc4 14.Qc4 Qc4 15.Nc4 Nd5 16.Bc1 Rac8 17.Bd3 (17.Bd2 Bh4 18.g3 Be7–/+) 17...N7f6 (Better is 17...Bf6!?–+) 18.0–0–/+ Nc7 19.a4 Rd4 20.Rd1 (20.Ba3 Bc5 21.Bc5 bc5 22.Be2–+) 20...Rcd8 21.Ne5 Be4 22.Bb2 (22.Ba3 Bc5 (22...Bd3?! 23.Be7 Be4 24.Rd4 Rd4 25.Nc3–/+; 22...Rd3?! 23.Nd3 Bc5 24.Bc5=) 23.Bc5 bc5–+ (23...Rd3?! 24.Nd3 bc5 25.Nf2 Rd1 26.Nd1=)) 22...Rd3 (22...Bd3 23.Bd4 Rd4 24.Rd3=+) 23.Nd3 Bc5 24.Kh1 Ng4 25.Nc3 Bd3 26.Ne4 Be7 27.h3 Ne3 (27...Be4?! 28.Rd8 Bd8 29.hg4–+) 28.Re1 Nc2 (29.Nc3 Na1 30.Ra1 Nd5 31.Nd5 ed5–+; 28...Be4?! 29.Re3 Bg2 30.Kg2 Rd2 31.Kf3 Rb2 32.Rd1–+) 0–1. Rempe,Torge – Prosch,Sebastian (1760), Schleswig Holstein–chA U16, 2000.

6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.e3 c5 6.b5).

6.f4 Bd6 +=.

6.c4 dc4

7.Bc4 Nb6 8.Qc2 Nc4 9.Qc4 a6 10.Nf3 =+.

7.Bc4 Nb6 8.Qc2 Nc4 9.Qc4 Bd6 10.Nf3 0–0 11.0–0 b6 12.d4 Bb7=+ 13.Nbd2 Rc8 14.dc5 Rc5 15.Qe2 Bb8 16.Rac1 Rc1 17.Rc1 Ne4 18.Ne4 Be4 19.Bd4 Qd6=+ 20.g3 Qa3–/+ 21.Bb2 Qd6 22.Nd4 Bb7 23.f4 h6 24.Qd3? Qd5–+ 25.e4 Qe4 26.Qe4 Be4 27.Nc6 Bc6 28.Rc6 Rd8–+ 29.Bc3 Bd6 30.Kf2 Kf8 31.Kf3 Kg8 32.Ke4 f6 33.Bd4 Kf7 34.Kd3?? Bb8 35.Ke4 g6 36.Be3 g5 37.fg5 hg5 38.Bf2 f5 39.Kf3 Rd3 40.Ke2 Rd8?? 41.Bb6?? ab6–+ 42.Rb6 Be5 43.h4 gh4 44.gh4 Rh8 45.Rc6 Rh4 46.b6 Rh8 47.b7 Rh2 48.Kd3 Rb2 (49.Ke3 Rb7–+) 0–1. von Herman,A – Oldenburg,A, 2.DBLNO, 1993.

7.Bc4 Nb6 8.Qc2 Nc4 9.Qc4 Bd7 10.Nf3 Qb6 11.a4= Be7 12.Ne5 0–0 13.Qc3 Rac8?? 14.Nd7+– Qd6 15.Nf6 Bf6 16.Qc2 Bb2 17.Qb2 Rfd8 18.0–0 c4 19.Qc3 Qc7 20.Rd1 Rd3 21.Qb4?? a5?? 22.ba6?? ba6? 23.Nc3 a5 24.Qb5 Rb8 25.Qg5 Rb2 26.Ra2 Ra2 27.Na2 c3 (28.Nc1 Rd2+–). SilentPlayer – maze, Live Game Caissa's Web, 2005.

7.Bc4 Nb6 8.Be2 Bd6 =+.

7.Bc4 Nb6 8.Be2 Be7 9.Nf3 0–0 10.Ne5 Nbd7 11.f4 Nd5 12.0–0 Bf6 13.Qb3 Qc7= 14.d4 cd4=+ 15.ed4 Be5 16.fe5+= Qb6 17.a4 a5 18.Kh1 Qd8 19.Nd2 N7b6 20.Ne4 Nb4 21.Nd6 N6d5 22.Rf3 f5 23.Ba3 Kh8 24.Bc4 Qe7 25.Bd5 ed5 26.Bb4 ab4 27.Qb4 Be6 28.b6 Bd7 29.a5 Bc6 30.Qc5 Ra6 31.Nb7!! (31...Qe8 32.Nd6+–) 1–0. Czernicki,Bogdan (2000) – Frey,M, Rudnik, 1992.

5.b5 Be7

6.c4 a6 7.a4 0–0 8.Nf3 Nbd7 9.Be2 dc4 10.Bc4 Nb6 11.Be2 ab5 12.ab5 Ra1 13.Ba1 Ne8 14.0–0 Bf6 15.Nc3 Nd6 16.Qc2 Bd7 17.Rb1 Qc7 18.Rb2 (better is 18.Ne4!? Ba1 19.Ra1 Ne4 20.Qe4=) 18...Ra8 19.Ra2 Ra2 20.Qa2 Bc3 21.Bc3 Nd5 (better is 21...Bb5!? 22.Bb5 Nb5 23.Bg7 Kg7 24.Qb2 Nd4 25.ed4 c4+=) 22.Be5+/– Nb4 (22...b6 23.Bc4 Ne7 24.Ng5+/–) 23.Qa8 Qc8 24.Qa5 Ne8 25.e4 f6 26.Bc3 Nd6 27.e5 fe5 28.Ne5 (worse is 28.Bb4 cb4 29.Ne1 b3+=) 28...Be8 29.Bb4 (29.Qb6!? Ne4 30.Bb4 cb4 31.Bc4+/–) 29...cb4+= 30.Qb4 Qc1 31.Bf1 Bb5 32.d3 Qc7 33.h3 Be8 34.Qb3 Qe7 35.g3 Nf7 36.Nf7 Kf7 37.d4 Bc6 38.Bc4 Qd6 39.Qd3 Qb4?? (better is 39...Kf6=) 40.Qe2?? (better is 40.Qf5! Ke8 41.Qe6 Kd8 42.Qg8 Be8 43.Kg2+–) 40...Qb1–/+ 41.Qf1 Qe4 42.Kh2 Qd4 43.Qe2 Qe4 44.Qe4 Be4 45.f4 Kf6 46.g4 Bc6 47.Kg3 b5 48.g5 Ke7 49.Bd3 g6 50.h4 b4 51.h5 Kf7 52.hg6+= hg6 53.Kf2 Bd5 54.Ke2 Bg2 55.Kd2 Bh3 56.Kc1 Bf5 57.Bc4 Ke7 58.Kb2 Kd6 59.Kb3 Kc5 60.Bf1 Kd4 61.Kb4 Ke4 62.Kc4 Kf4 63.Kd4 e5 64.Kc3 Kg5 65.Kd2 Kf4 66.Ke2 e4 67.Kf2 e3 68.Ke2 Bd7 69.Bg2 Bb5 70.Ke1 g5 71.Bh1 Kg3 72.Be4 g4 (72...g4 73.Bf5 Kf4–+) 0–1. Holz auf der Heide,Gerhard (1985) – Schumann,Martin (1730), Leipzig VfB op, 2006.

6.c4 a6 7.Qc2 ab5 8.cb5 0–0 9.Nf3 b6 10.Ng5 Nbd7 11.h4 h6 12.f3 e5 (12...hg5?! 13.hg5 Re8 14.gf6 Bf6 15.Nc3=) 13.Nh3 Nh5 14.Ng5 (14.Rh2 Bh4 15.Nf2 Ng3–+) 14...Bg5 (better is 14...hg5!? 15.hg5 g6 16.f4 ef4 17.ef4–+) 15.hg5 Qg5 16.g4 Ng3 17.Rh3 Nf1 18.Kf1 f5 19.Rh5 Qg6 20.Rf5 1–0. combijack (1720) – la_vidas, gameknot.com, 2012.

6.c4 b6 7.Nf3 0–0 8.Qc2 Nbd7 9.Be2 h6 10.Nc3 Bb7 11.d4 cd4 12.ed4 dc4 13.Bc4 Bf3 14.gf3 Rc8 15.Ne4 Qc7 16.Rc1 Qf4 17.Qd3 Rfd8 18.Qe3 Qh4 19.Ke2 Nh5 20.Rc3 Nf4 21.Kd1 Ne5 22.Nd2 Nc4 23.Rc4 Rc4 24.Nc4 Bg5 25.Qd2?? (25.Qe4–+) 25...Nh3 26.Ne3 (26.f4 Bf4 27.Qe1 Qh5 28.Kc2–+) 26…Nf2 (26...Nf2 27.Ke2 Nh1–+) 0–1. combijack (1715) – sacrifice (1685), gameknot.com, 2012.

6.c4 b6 7.Nf3 Bb7 8.Be2 0–0 9.0–0 Nbd7 10.d3 dc4 11.dc4 Qc7 12.h3 Rfd8 13.Qb3 Ne4 14.Nc3 Ndf6 15.Rfd1 Rd1 16.Rd1 Rd8 17.Qc2 Rd1 18.Nd1 h6 19.Bd3 Bd6 20.Nc3 Nc3 21.Qc3 Bf3 22.gf3 Bf8 23.Qc2 Qd8 24.Bf1 Be7 25.f4 Ne8 26.f5 ef5 27.Qf5 Bf6 28.Be5 Be5 29.Qe5 Qg5 30.Qg5 hg5 31.Kg2 ˝–˝. Schulze,Harald (2105) – Moroz,Grigorij (1915), Regionalliga NO, 2008.

6.c4 dc4 7.Bc4 0–0 8.Nf3 a6 9.Qc2 ab5 10.Bb5 Bd7 11.Nc3 Bb5 12.Nb5 Qa5 13.a4 Nc6 14.Ng5 g6 15.h4 Rad8 16.Bc3 Qb6 (better is 16...Nb4 17.Bb4 Qb4+=) 17.h5+= Nb4 18.Bb4 cb4 19.hg6 hg6 20.Nd4 Rd4 21.ed4 Qd4 22.0–0 b6 23.a5 (23.Nf3!? Qd6 24.Rfe1+=) 23...ba5 24.Ra5 Nd5? (24...Rd8 25.Nf3 Qd3 26.Qc7=) 25.Nf3 (better is 25.Ne6!? Qb6 26.Rd5 Qe6 27.Qd3+/–) 25...Qg4 26.Ne5 Qg5 27.Nf3 Qg4 28.Nh2 Qh4 29.g3 Qh5 30.Qe4 Bf6 (better is 30...Nf6!? 31.Qe5 Qe5 32.Re5 Rb8–/+) 31.Rb1 Qf5 (31...Rb8 32.Ng4 Bd8 33.Ra4=) 32.Qf5 gf5 (32...ef5?? 33.Rd5 Rb8 34.Rb3+–) 33.Nf3 Rb8 34.Rb3 Rc8 35.Kg2 Kg7 36.Ra7 Rc2 37.d4 Rd2?? (37...Rc4 38.Rd3 Rc3 39.Rc3 bc3=) 38.Ne5 (better is 38.Nd2 Bd4 39.Rd7+–) 38...Be7 39.Nc6 Bf6 40.Ne5 Be7 41.Nf3 Rc2 42.Rd7 Bf6 (42...Kf6 43.Ne5=) 43.Ne5 (better is 43.Rd5!? ed5 44.Rb4+=) 43...Be5+= 44.de5 Rc3 45.Rb2 f4 46.g4 Kg6 47.f3 Re3 48.Rd5 ed5 ˝–˝. combijack (1825) – romast (1665), gameknot.com, 2011.

6.c4 d4 7.Qc2 e5 8.ed4 ed4 9.Nf3 Nbd7 10.d3 b6 11.g3 Bb7 12.Bg2 0–0 13.0–0 Re8 14.Nbd2 Qc7 15.Rae1 Bd6 16.Bc1 h6 17.a4 Ne5 18.Ne5 Bg2 19.Kg2 Re5 20.Re5 Be5 21.f4 Bd6 22.Re1 Ng4 23.Nf3 Kf8 24.Qe2 Qe7 25.h3 Qe2 26.Re2 Nf6 27.g4 Re8 28.Re8 Ke8 29.Ne5 Be5 30.fe5 Nd7 31.Bf4 Ke7 32.Kf3 Ke6 33.Ke4 g5 34.Bg3 Nf8 (34...h5 35.Bh2= (35.gh5?? Ne5 36.Be5 f5 37.Kf3 Ke5–+)) 35.Be1 (35.h4 Ng6 36.h5 Nf8=) 35...Ng6 36.Bg3 Nf8 (better is 36...h5!?–/+) 37.Bh2 Nd7 38.Bg3 Nb8 (better is 38...h5!?–/+) 39.h4= a6 40.h5 ab5 41.cb5 Nd7 42.Bh2 Nb8 43.Bg1 Nd7 44.Bh2 Nb8 45.Bg3 Nd7 46.Be1?? (46.Bh2 f6 47.ef6 Nf6 48.Kf3–/+) 46...Ne5–+ 47.a5 ba5 48.Ba5 Ng4 49.Bc7 (49.Kf3 Ne5 50.Ke2 Nd7–+) 49...f5 (better is 49...Ne5! 50.Be5 f5 51.Kf3 Ke5–+) 50.Kf3 Ne5 51.Ke2 f4?? (better is 51...Nf7–+) 52.b6 Nc6 53.b7 Kf5 54.b8Q Nb8 55.Bb8 Kg4 56.Ba7 Kh5 57.Bc5 g4 58.Bd4 f3 59.Kf2 Kg6 60.Be5 Kf5 61.Bc7 h5 62.Kg3 h4 63.Kf2 Ke6 64.Bf4 Kf5 65.Bb8 Ke6 66.Bc7 Kd5 67.Bb6 Ke5 68.Be3 Kd5 69.Bb6 Ke5 70.Ke3 Kd5 71.Bd8 h3 72.Bc7 Kc5 73.Bf4 Kd5 74.Bg3 Kc5 75.Bf4 Kd5 76.Bh2 Kc5 77.Bg3 Kd5 78.Bh2 Kc5 79.Be5 Kd5 80.Bf4 Ke6 81.Bg3 ˝–˝. combijack (1770) – luker67 (1645), gameknot.com, 2012.

6.Be2 0–0 7.Nf3 b6 8.0–0 Bb7 9.d4 c4 10.a4 Ne4 11.c3 f5 12.Nbd2 Rf6 13.Ne4 fe4 (worse is 13...de4 14.Nd2+/–) 14.Nd2 Rh6 15.f4 Nd7 16.g4 Bd6 (16...Rh3!?–/+) 17.g5= Rh4?? (better is 17...Rh3 18.Bc4 Qf8=) 18.Qe1+– Rh3 19.Bg4 Re3 (19...Rf3 20.Nf3 (20.Bf3?! ef3 21.Ba3 Ba3 22.Ra3 a6+–) 20...ef3 21.Be6 Kh8 22.Rf3+–) 20.Be6 Kh8 21.Qe3 Nf8 22.Bg4 Bc8 23.Bc8 Qc8 24.Rf2 (better is 24.f5!? a6+–) 24...Qg4 25.Kh1 Ng6 26.Raf1 Rf8 (26...Qf5 27.Nb1+–) 27.f5 Nh4 28.Rg1 (28.f6 gf6 29.h3 Qh5 30.gf6 Nf3 31.Rf3 ef3 32.Qf3 Qf7+–) 28...Qh5 (28...Nf5 29.Rg4 Ne3 30.Rf8 Bf8 31.Rg1+–) 29.f6 (29.Qh3 e3 30.Qe3 Nf5+–) 29...gf6 (29...Nf5 30.Qe2 Qe2 31.fg7 Kg7 32.Re2 Kg6+–) 30.Rf6 (better is 30.gf6 Ng6 31.Nf1+–) 30...Rf6+/– 31.gf6 Nf5 32.Qf2 Ng3?? (better is 32...e3 33.f7! Qf7+– (33...ef2?? 34.Rg8)) 33.Rg3+– Bg3 34.Qg3 (better is 34.f7 Qh2 35.Qh2+–) 34...Qd1 35.Qg1 Qd2 (35...Qg1 36.Kg1 Kg8+–) 36.Qg7 1–0. mikebaldini (1745) – suppressor (1650), gameknot.com, 2013.

6.Be2 0–0 7.Nf3 Nbd7 8.c4 Qc7 9.Nc3 b6 10.d4 Bb7 11.cd5 Nd5 12.Nd5 Bd5 13.Rc1 Rac8 14.Nd2?? (better is 14.Bc4=) 14...Bg2–+ 15.Rg1 (15.Rf1–+) 15...Qb7 (better is 15...Qh2 16.Rf1 Bf1 17.Bf1 Qh1–+) 16.dc5+/– Nc5 17.Rc5?? (17.e4!? Ne4 18.Rg2+/–) 17...Bc5 (better is 17...Rc5!? 18.Bf3 Bf3 19.Rg7 Kh8 20.Rf7 e5 21.Rf8 Bf8 22.Nf3 Qe4+=) 18.Bf3 Bf3?? (better is 18...Qe7 19.Rg2 e5+/–) 19.Rg7+– Kh8 20.Nf3 (20.Nf3 Qc7 21.Qd3 Bb4 22.Kf1 Qc1 23.Kg2+–; 20.Qf3?! Qf3 21.Rf7 Qf6 22.Bf6 Kg8 23.Rg7 Kh8 24.Rg6 Rf6 25.Rf6 Ba3 26.Re6 Rc5 27.Re8 Kg7 28.Re7 Kg6 29.Ra7 Bb4+/–) 1–0. mikebaldini (1620) – jabir6510 (1635), gameknot.com, 2015.

6.f4 0–0=+ 7.Nf3 a6 8.ba6 Na6 9.Be2 =+.

6.f4 0–0=+ 7.Nf3 Nbd7 8.Be2 a6 9.a4 b6 10.0–0= a5 11.Qe1 c4 12.Qg3 g6 13.Nc3 Nc5 14.Nd1 Nfe4 15.Qe1 Bf6 16.Ne5 Bb7 17.d3+= cd3 18.cd3 Nd6 19.Nf2 Nf5 20.Bd1 Nd6 21.Ra3 Rc8 22.Nfg4 Bg7 23.Qg3 Qe7 24.Qh3 h5 25.Nf2 Nf5 26.g4 hg4 27.Bg4 Be5 28.fe5 Kg7 29.d4 Ne4 30.Ne4 de4 31.Bf5 ef5= 32.Qg3? Bd5?? 33.Rf5?? Rh8?? 34.Ra1 Qh4 35.Rf4 Qh3 36.Qh3 Rh3= 37.Rc1 Rhh8 38.Rf2 Rhe8 39.Rfc2+/– Be6 40.Ba3 Rc2+= 41.Rc2 Rc8? 42.Rc6 Bd7 43.Rb6+– Rc3 44.Be7 Re3 45.Bf6 Kh6 46.Rb8 Kh5 47.b6 Kg4+/– 48.Rh8 Kf3= 49.Bh4 Rb3–/+ 50.Kf1?? Rb6 51.Be1–+ Rb1 52.d5 e3 (53.h3 e2 54.Kg1 Re1 55.Kh2 Rf1 56.Rc8 Rf2 57.Kg1 e1Q#) 0–1. Fontes,Carlos – Castanheira,Antonio (2015), Campo Grande, 2001.

6.c4 0–0

7.Qc2 a6 8.Nc3 Bd7 9.Nf3 b6 10.Be2 Qc7 11.Ng5 h6 12.h4 d4 (12...hg5 13.hg5 Rd8 14.cd5+–) 13.ed4 cd4 (13...hg5 14.hg5 g6 15.gf6 Bf6 16.dc5+–) 14.Nce4 ab5?? (14...Nd5 15.Qd3 hg5 16.hg5 f5 17.Qd4 Nf6 18.gf6 Rf6+–) 15.Nf6 Bf6 16.Qh7 1–0. combijack (1810) – romast (1760), gameknot.com, 2012.

7.Bd3 b6 8.Qf3 Bb7 9.Ne2 Nbd7 10.0–0 Qc7 11.Qh3 dc4 12.Bf6 (12.Bc4 a6=) 12...Nf6 13.Bc4 Rfd8 14.f4 Be4 15.Nbc3 Rd2 16.Rad1 Rad8 17.g4 Qb7 18.g5 Bf5 19.Qg3 Nh5 20.Qf2 g6 21.Rd2 Rd2 22.Rd1 Qd7 23.Qe1 Rd1 24.Qd1 Qd1 25.Nd1 e5 26.Ndc3 ef4 27.e4? Bg4 28.Kf2 Bg5 29.Nd5 Be6 30.Kf3 Kg7 31.Nec3 Bf6 32.Nf6 Kf6 33.Be2 Kg5 34.Nd5 Bg4 35.Kf2 Be2 36.Ke2 Kg4 37.Kf2 Ng7 38.Nf6 Kh3 39.Kf3 Ne6 40.Nh7 c4 41.Nf6 c3 42.Ng4 c2 43.Nf2 Kh2 44.Nd3 g5 45.Ke2 g4 46.Kd2 Nd4 47.Nf4 g3 48.e5 g2 49.Ng2 Kg2 50.Kc1 Kf3 51.a4 Ke4 52.e6 fe6 53.Kd2 e5 54.Kc1 Ke3 55.Kb2 Kd2 56.Ka3 c1Q 57.Kb4 Qc3 0–1. willi_weizenkeim – POGE, HCL–B1749 playchess.de, 2003.

7.Nf3 a6 8.Qb3 ab5 9.Qb5 Qc7 10.Be5 Qc6 11.Qb3 Nbd7 12.Nc3 Ne5 13.Ne5 Qc7 14.f4=+ Bd6 15.Nb5 Qb8 16.Nd6 Qd6 17.Be2 Nd7 18.Ng4 f5 19.Nf2= d4 20.0–0 b6 21.Bf3+= Rb8 22.ed4 Qd4 23.Kh1 Bb7 24.Bb7= Rb7 25.Nh3 Nf6 26.Qb5 Ng4 27.Qc6 Rd7 28.Qb6 Qd2 29.Qe6 Kh8 30.Ra2 Qa2=+ 31.Qd7 Qc4 32.Re1 h6 33.Qe7 Rb8 (34.Qd6 Rg8=+; 33...Rg8 34.a4=+). HMBCHESS2 – roswitha, Live Game Caissa's Web, 2005.

7.Nf3 b6 8.Bd3 Nbd7 9.Qc2 dc4 10.Bc4 Bb7 11.Nc3 Qc7 12.Bd3 Ne5 13.Be2 Nf3 14.gf3 Rad8 15.0–0–0 Rfe8 16.Rdg1 Bf8 17.Rg3 g6 18.h4 Bg7 19.Qd1 h5 20.Rhg1 e5 21.e4 Bh6 22.Nb1 Re6 (better is 22...Bf4 23.R3g2 Bc8–/+) 23.Bc4+= Red6? (better is 23...Bc8+=) 24.Rg6+– Kh7 25.Rh6! Kh6 26.Be5 Qe7 27.Bf4 Kh7 28.e5 Rd4 29.Qc2 Ne4 30.Bg5 Rc4 31.Qc4 Ng5 32.Rg5 Bf3 33.Qf4 Bg4 34.f3 Rd4 35.Qg3?? Rd3+= 36.Qf4 Rf3?? 37.Qe4+– Kh6 38.Rg8 Rf1–/+ 39.Kb2 Bf5 40.Qe3 Kh7 41.Rg1 Rg1 42.Qg1 Qe5 43.Nc3 Bg4 44.Qb1 Kg7 45.Qf1 Qf6 46.Qe1 Qe6 47.Qf2 Qf6 48.Qe1 Bf5 49.Qg3 Bg6 50.Qe1 Qd8 51.Qe5 Kh7 52.Nd5 Kg8 53.Ne7+= Kf8 54.Ng6 fg6 55.Qh8 Ke7 56.Qg7 Ke6 57.Kc2 Kf5 58.Qf7 Qf6 59.Qd7 Kf4 60.Qa7 Kg4 0–1. Havlicek,P (1735) – Hybl,V (1925), Ricany CZE, Open, 2011.

7.Nf3 Nbd7 8.Qc2 Nb6 9.Ng5 Re8 10.Be2 Nc4 11.Bc4 dc4 12.Qc4 Qd5 13.Qd5 ed5 14.0–0 a6 15.a4 ab5 16.ab5 Ra1 17.Ba1 Bd7 18.Nc3 d4 19.ed4 cd4 20.Nd1 Bb5 21.Re1 Bc5 22.Re8 Be8 23.d3 Bc6 24.f3 h6 25.Ne4 Ne4 26.fe4 b5 27.Kf2 Kf8 28.Bb2 Ke7 29.g4 Ke6 30.Kf3 b4 31.Nf2 Ke5 32.Nh1 Bb5 33.Nf2 Be7 34.Kg3? (34.g5 hg5 35.Ng4 Ke6 36.Bd4–+) 34...Bg5 35.h4 Bf4 (better is 35...Be3–+) 36.Kf3 Bd2 37.g5 hg5 38.hg5 Bg5 (better is 38...Bc3!? 39.Bc1 b3 40.Ng4 Ke6 41.Ke2–+) 39.Ng4 Ke6 40.Bd4 Bd3 41.Bg7 Bc1 42.Ne5?! (42.Nf2 Bc2 43.Ke2–+) 42...Bb5 43.Ng4 b3 44.Bd4 b2 45.Bb2 Bb2 46.Nh6 (46.Ke3 f5 47.ef5 Kf5–+) 46...Bc6 47.Nf7 (47.Ke2 Be4 48.Ng4–+) 47...Kf7 48.Kf4 Ke6 49.Ke3 Ke5 50.Kd2 Ke4 51.Kc2 Bd4 52.Kb3 Kd3 53.Kb4 Bb6 54.Kb3 Bc5 55.Kb2 Ba4 56.Ka2 (56.Kc1 Kc3 57.Kb1 Be3 58.Ka2 Bc6 59.Kb1 Bd5 60.Ka1 Kb3 61.Kb1 Be4 62.Ka1 Bd4) 56…Kc2 (56...Kc2 57.Ka1 Bd4 58.Ka2 Bb3 59.Ka3 Bc5) 0–1. combijack (1820) – lawjam (1840), gameknot.com, 2011.

7.Nf3 Nbd7 8.Be2 b6 9.0–0 Bb7 10.d3 Qc7 11.h3 Rad8 12.Qc2 dc4 13.Qc4 Rfe8 14.e4 Bd6 15.Nbd2 Nh5 16.Rfe1 Nf4 17.Bf1 e5 18.Qc3 Ne6 19.Nc4 Nd4 20.a4 Nf3 21.gf3 Bf8 22.Kh1 (22.a5 f6=) 22...f6 23.Be2 (23.a5 Bc8=) 23...g6 24.Rg1 Bg7 25.Rg2 Nf8 26.Rag1 Ne6 27.Rg3 Nf4 28.Bf1 Qd7 29.Ne3 Nd3 30.Nf5 Nf2 (30...gf5 31.Rg7 Qg7 32.Bd3+/–) 31.Kh2 Nd3 (better is 31...gf5 32.Bc4 Kh8 33.Rg7 Qg7 34.Rg7 Kg7–+) 32.Rg6 hg6 33.Rg6 Nb2 34.Rg7 Qg7 35.Ng7 Kg7 (better is 35...Nd1!? 36.Bc4 Kg7–+) 36.Qb2–/+ Rd4 37.Qg2 Kh7 38.Qg4 Rg8 39.Qh5 Kg7 40.h4?? (40.Qg4 Kf7 41.Qh5 Rg6 42.Qh7 Rg7 43.Qh5 Ke7 44.Qh8 Rd2 45.Kh1+=) 40...Bc8–+ (40...Ra4?! 41.Qg4 Kh8 42.Qe6+=) 41.f4 (41.Bh3 Rh8 (41...Ra4 42.Bc8 Rc8 43.Qg4 Kf7 44.Qc8+–) 42.Qh8 Kh8 43.Bc8 c4–+) 41...Rh8 42.Qe2 Rh4 43.Kg1 Rf4 44.Bg2 Bg4 45.Qe3 Ra4 46.Qb3 Ra1 47.Kh2 Rf2 48.Qg3= Rf4 49.Qb3 Rd1 50.Qa2 Rd7 51.Qc4 Rd2 52.Qa4 Rff2 53.Qa7 Kg6 54.Qb8 Rg2 55.Kh1 Rh2 56.Kg1 Rdg2 57.Kf1 0–1. Holz auf der Heide,Gerhard – Langer,Wolfgang (1855), Leipzig VfB op, 2003.

7.Nf3 Nbd7 8.Be2 Nb6 9.Qc2 dc4 10.Bc4 Nc4 11.Qc4 b6 12.d3 Bb7 13.e4 Ne8 14.Nbd2 Nc7 15.a4 a6 16.0–0 ab5 17.ab5 Qd7 18.Ne5 Qb5 19.Qb5 Nb5 20.Nd7 Ra1 21.Ra1 Rd8 22.Nb6 Rd3 23.Nbc4 Nd6 24.f3 Nc4 25.Nc4 Rd8 26.Kf2 Ra8 27.Ke3 Ra1 28.Ba1 f6 29.g3 Ba6 30.Nd2 Kf7 31.f4 g6 32.e5 fe5 33.Be5 Bb7 34.h4 h5 35.Nc4 Bd5 36.Nd2 Bf6 37.Nb1 Bd8 38.Bc3 Bb6 39.Ke2 Be4 40.Nd2 Bd5 41.Nb1 Bb3 42.Nd2+= Ba2 43.Kf3 Bd8 44.Ke2 Bd5 45.Nb1 Ke7 46.Be5 Kd7 47.Nc3 Kc6 48.Kd3 c4 49.Kd2 Bf3 50.Ke3 Bd5 51.Kd2 Ba5 52.Ke3 Bg2 53.Bd4 Bf1 54.Be5 Bd3 55.Bd4 Bb4 56.Be5 Ba3 57.Bd4 Bc1 58.Kf3 Bd2 59.Kf2 Kb7 60.Na4 Bf5 61.Ke2 Ba5 62.Nc3 Ka6 63.Ke3 Bb4 64.Ke2 Ka5 65.Ke3 Ba3 66.Be5 Bc1 67.Kd4 Bd3 68.Nd1 Kb4–+ 69.Bd6 Kb3 70.Nf2 Bf5 71.Nd1 Kc2 72.Ne3–/+ Kd2 73.Nc4 Ke2 74.Ne5 Be3 75.Kc4 Kf2 76.Bb4 Kg3–+ 77.Be1 Kf4 78.Nd3 Kf3 79.Ne5 Ke2 80.Ba5 g5 81.hg5 Bg5 82.Bb6 h4 83.Bg1 Bf4 84.Kd4 h3 85.Nc4 h2 86.Bh2 Bh2 87.Kc5 Bd3 88.Nb2 e5 89.Na4 Kd2 90.Kd5 e4 91.Nc5 e3 92.Nb3 Kc3 93.Nd4 e2 94.Ne2 Be2 95.Ke4 Bg1 96.Kd5 Bd3 97.Ke5 Be3 98.Kd5 Kb4 99.Ke5 Kc5 100.Ke6 Bf4 101.Kf6 Kd5 102.Ke7 Be5 103.Kd7 Bd6 104.Ke8 Ke6 105.Kd8 Bb5 106.Kc8 Bc6 107.Kd8 Bd5 108.Kc8 Be5 109.Kd8 Bc6 110.Kc8 Kd6 111.Kd8 Bd4 112.Kc8 Bb6 113.Kb8 Bd7 114.Kb7 Kc5 115.Ka6 Bc8# 0–1. Holz auf der Heide,Gerhard (1645) – Herfurth,Thomas (1890), Leipzig VfB op, 2004.

7.Nf3 Ne4 8.Bd3 Nd7 9.Qc2 f5 10.Nc3 Ndf6 11.0–0 Nd6 ˝–˝. Svensek,Marjan (2075) – Brinovec,Franc Jr (2100), SLO–chT1 East, 2007.

6.Nf3 0–0

7.c4 dc4 8.Bc4 b6 9.0–0 Bb7 10.d3 Nbd7 11.e4 Qc7 12.Re1 Ng4 13.h3 Nge5 14.Qe2 Nf3 15.Qf3 (worse is 15.gf3 Bf6–/+) 15...e5 (15...a6 16.ba6 Ba6 17.Ba6 Ra6 18.Nc3=) 16.Nc3+= Nf6 17.g4 g6 (17...Qd6 18.Qg3=) 18.Bc1+= Kg7 19.Bd2 a6 20.a4 a5 21.Kg2 Rad8 22.Rad1 Rd7 23.Rg1 Qd6 24.Bc1 Qd4 25.Ne2 Qc4?? (better is 25...Qd6=) 26.Qf6?? (better is 26.Bh6! Kg8 27.dc4 Rd1 28.Bf8 (28.Rd1?! Be4 29.Bf8 Bf3 30.Kf3 Kf8+/–) 28...Kf8 29.Qe3+–) 26...Bf6 27.dc4 Rd1 28.Rd1 Be4 ˝–˝. Koerner,Helmut (1980) – Mildenberger,Hans, Berlin Lichtenberger op 7th, 2008.

7.d3 a6 8.c4 ab5 9.cb5 Qa5 10.Nc3 Bd7 11.Qb3 Be8 12.Be2 Nbd7 13.0–0 Nb6 14.a4 Nfd7 15.Ba3 Rc8 Black prepares c4 16.Nd2 Bf6 17.Bb2 h6 18.h3 Ne5 Black plans c4 19.f4 (19.Qc2!?=) 19...c4+= 20.dc4 Nec4 (worse is 20...dc4 21.Qc2 Ned7 22.Rfc1+=) 21.Nc4 Nc4 (worse is 21...dc4 22.Qc2=) 22.Bc4 Rc4 23.Rfc1 Bd7 0–1. Zakarlyuk,Roman – Amanbaev,Sino (2105), Pavlodar op, 2008.

7.Be2 a6 8.a4 ab5=+ 9.ab5 Ra1 10.Ba1 Nbd7 11.0–0 Qc7 12.c4 b6 13.Nc3 dc4 14.Qa4 Bb7 15.Qc4 Ra8 16.Bb2 h6 17.Ra1 Ra1=+ 18.Ba1 Qd6 19.Nb1 Bf3 20.gf3 Nd5 21.Nc3 Nc3 22.Bc3 Qd5 23.Qd5 ed5 24.d3 Bf6=+ 25.Bd2 Kf8 26.f4 Ke7 27.Kg2 Nf8 28.f5= g6 29.Kg3 gf5=+ 30.Kf4 Ke6 31.Bh5 Be5–+ 32.Kf3 Bh2 33.e4 fe4 34.de4 de4 35.Ke4 f5 36.Kd3 Nd7 37.Bh6 Nf6 38.Bd1 Nd5 39.Bb3=+ Be5 40.Bc4 Bc7 41.Bb3 Be5 42.Bc4 Bf6 43.Bf4 Be5 (43...Bd4!? 44.Bc7 Bf2 45.Bb6 Kd6–/+) ˝–˝. Honos,Attila – Halasz,Attila, HUN tt2, 1998.

7.Be2 a6 8.ba6 b6 =.

7.Be2 a6 8.c4 ab5 9.cb5 c4 (9...Nbd7 10.0–0+=) 10.Nc3 (10.d3 Qa5 11.Nc3 cd3 12.Qd3 Nbd7=) 10...Nbd7 11.0–0 (11.d3 cd3 12.Bd3 Bd6=) 11...b6 (11...e5 12.Qc2+=) 12.Nd4 (12.d3 cd3 13.Bd3 Bd6=) 12...Bb7 13.f3 (13.d3 Ne5=) 13...Nc5 14.d3 (14.f4 Ra7+=) 14...cd3 (14...e5 15.Nc6 Bc6 16.bc6+=) 15.Bd3+= Nd3 16.Qd3 Bd6 17.g3 (17.f4 Qe7+=) 17...Qc7 (17...Qe7 18.Rfc1–/+) 18.a4 (18.Rfc1 Qd7+=) 18...e5 (18...Nd7 19.Nb3–/+) 19.Nf5+= Bc5 20.g4 (20.Ba3 g6 21.Nh6 Kg7–/+) 20...e4 (20...Bc8!?–/+) 21.fe4= Ng4 (21...de4 22.Qe2+=) 22.Qe2 Ne3 23.Ne3 d4 24.Ncd5 Bd5 25.ed5 de3 26.Rf5 g6 (26...Qd7 27.Qg2 f6 28.Rf4–+) 27.Re5 Rfe8 28.Re8 Re8 29.Kg2 Qb7 (29...Qf4 30.Qf3 Qc4 31.Re1–+) 30.Qc4 (30.Rd1 Qe7 31.Kg1 Rd8–+) 30...Qe7 (30...Qd7 31.Bf6 e2 32.Bh4–+) 31.Qf4 (better is 31.Qg4–+) 31...e2 32.Re1 Bb4 33.Kf2 Qe4 (better is 33...g5 34.d6 Be1 35.Ke1 gf4 36.de7 Re7 37.Bd4–+) 34.Qe4 Be1 (34...Re4 35.Re2 Bc5 36.Kf3 Re2 37.Ke2+=) 35.Ke1 Re4 36.Bf6 Ra4 (36...Kf8 37.Bd8 Ra4 38.Bb6–+) 37.d6 Ra7 38.Ke2? (38.Bd8 Rd7 39.Bb6 Rd6 40.Bc7 Rd1 41.Ke2–+) 38...Rd7 39.Be7 (39.Be5 f5–+) 39...f5 40.Kd3 (40.Bg5 Rd6 41.Be3 Re6–+) 40...Kf7 41.Kd4 (41.Bg5 Ke6–+) 41...Ke6 (worse is 41...Re7 42.de7 Ke7 43.Ke5–+) 42.Kc4 Re7 43.de7 Ke7 44.h4 f4 45.Kd3 Kf6 46.Ke4 g5 47.Kf3 Kf5 48.hg5 Kg5 (48...Kg5 49.Ke4 h5–+) 0–1. glennobrien (1960) – soltpl (2040), gameknot.com, 2016.

7.Be2 b6 8.0–0 Bb7 9.d3 Nbd7 10.Nbd2 Qc7 11.c4 a6 12.a4 ab5 13.ab5 Ra1 14.Ba1 Ra8 15.Qc2 h6 16.Bc3 Nf8 17.Qb2 Ng6 18.Ra1 Ra1 19.Qa1 Qb8 20.h3 Qa8 21.Qa8 ˝–˝. Hal1958 – Baggur, playchess.de, 2005.

7.Be2 b6 8.c4 Bb7 9.h3 (9.d4 dc4 10.Bc4 a6=) 9...Nbd7 10.0–0 dc4 11.Bc4 Nd5 (11...a6 12.d4+=) 12.Ne5 (12.Qe2 Bf6 13.Nc3 Nc3 14.Bc3 Bc3 15.dc3 Qf6=) 12...Ne5+= 13.Be5 Bf6 14.Bf6 Qf6 15.Ra2 Qg6 16.Qg4 Qf6 17.f4 (17.Qd1 a6 18.ba6 Ba6+=) 17...g6 (17...a6 18.ba6 Ba6 19.f5+=) 18.f5 (18.Qg5!?=) 18...ef5+= 19.Qg3 Qe7 (19...Rfd8 20.Rf2–/+) 20.Nc3 (20.Rb2 Qc7 21.Qg5 Qe5 22.Bd5 Bd5+=) 20...Nc3 21.dc3 Rad8 (21...Qe4 22.Qf4 Rad8 23.Re2–/+) 22.Raf2 (22.Rf5 Be4 23.Re5 Qc7=) 22...Kg7 (22...Qe4!? 23.Ba2 Bd5 24.Bd5 Rd5–/+) 23.Rf5= Rd2 (23...f6 24.Kh2=) 24.R1f2 (24.Rf7!? Rf7 25.Rf7 Qf7 26.Bf7 Rg2 27.Qg2 Bg2 28.Kg2 Kf7 29.Kf3=) 24...Rf2 25.Rf2 f5 26.h4 Rd8 27.h5 Rd1 28.Bf1 Qf7 29.hg6 hg6= 30.Qe5 Kg8 31.Qb8 Kg7+= 32.Qe5 Kh6?? 33.Qh8+– Qh7 34.Qf8 Qg7+= 35.Qg7 Kg7–/+ 36.Kh2 Kf6 37.g4 Kg5 38.gf5 gf5 39.Kg3 Be4–+ 40.c4 Re1 41.Bg2? Re3 42.Kh2 Bd3 43.Bd5 f4 44.Rg2 Kh4 45.Ra2 Rh3 46.Kg2 Rg3 47.Kh2 Rh3 48.Kg2 Bf5 49.a4 Rg3 50.Kf2–/+ Bh3 51.a5 Rg6 52.a6 Rg3 53.Re2 Bg4 Black plans f3 54.Re7= Ra3 55.Ra7?? Ra2–/+ 56.Ke1 f3 57.Rh7? Kg3–+ 58.Bf3 Bf3 59.Rg7? Kf4 60.Rg6 Ke4 61.Rb6 Kd4 62.Rf6 Be4 63.Rf4? Ke3 64.Re4 Ke4 65.Kd1 Kd4 66.Kc1 Kc4 0–1. Rush,Bradley – Jaszczowski,Zdzislaw, 54. LSS No Engine Cup Preliminary, 2011.

7.Be2 Bd7 8.0–0= a6 9.a4 c4 10.Na3 (10.Nc3!?+=) 10...ab5 11.ab5 (11.Nb5 Nc6=) 11...Qe8 (11...Bb4 12.Qc1+=) 12.Ne5 Bb5 (12...Bc8 13.d3 c3 14.Nb1 Ra1 15.Ba1 Qb5 16.Nc3+=) 13.Nb5+= Ra1 14.Qa1 Qb5 15.d3 (15.Rb1 Qa6+=) 15...cd3= 16.Bd3 Qb6 17.Rb1 Qc7 18.h3 (18.Bd4 Nc6 19.Qc3 Ra8=) 18...Nc6 (18...Na6 19.Nf3=) 19.Ng4 (19.Nc6 bc6 20.Be5 Qd7=) 19...Nh5 (19...Ng4 20.hg4 f6 21.g5+=) 20.Qa4 (20.Be2 f5 21.Nh6 gh6 22.Bh5 Rc8=) 20...f5+= 21.Nh2 f4 (21...Nf6 22.c4+=) 22.e4= Bc5 23.Qb5 (23.ed5 ed5 24.Qb3 Nb4=) 23...Nb4 24.Be2? (24.Ng4 Nd3 25.cd3 f3=) 24...Ng3 (better is 24...de4!? 25.Ng4 f3–/+ (25...Nc2?! 26.Rc1+=)) 25.ed5–/+ Nd5 (25...ed5 26.Ba3 Na6 27.Bc5 Qc5 28.Ng4 Qb5 29.Bb5–/+ (29.Rb5?? Ne2 30.Kh2 Nc3–+)) 26.Bd3+= b6 (26...Nb4 27.Bc4 Ne4 28.Ng4=) 27.Nf3= Qd8 (27...Qe7 28.Nd4=) 28.Re1 Kh8 (28...Qe7!?=) 29.Re6 Nc7 30.Rh6 Nf5?? (better is 30...Nb5 31.Rh7 Kg8 32.Rg7 Kh8=) 31.Qc6+– Bd6 (31...Qe8 32.Bf5 Rf5 33.Qc7 Rf7+–) 32.Bf5 Rf5 33.Rd6 Qe7 34.Rd7 1–0. Tirado Parra,Alberto (1880) – Juarez De Vena,A (1610), 5th Madrid Los Angeles op, 2011.

7.Be2 Nbd7 8.0–0 b6 9.h3 (9.d3 a6 10.ba6 Ba6=) 9...Bb7 10.d3 Re8 11.Nbd2 Bd6 12.Nh2 e5 13.Ng4 Ng4 14.Bg4 Nf6 15.a4 Bc7 16.Be2 e4 17.f4? (17.de4 de4 18.Nc4 Qe7=) 17...ef3 18.Bf3 (18.Nf3 Re3 Discovered attack; 18.Bf3 Re3 Discovered attack; 18.Rf3 Qd6 Combination; 18.gf3 Re3 Discovered attack) 18...Qd6 19.Kf2? (19.Bf6 gf6 20.c4 Qh2 21.Kf2 Bg3 22.Ke2 Bf4–/+) 19...Re3 (19...Qg3 20.Kg1 Re3 21.Re1 Qh2 22.Kf1–+) 20.Re1? (20.Ke3 Re8 21.Be4 de4 22.Nc4 Nd5 23.Ke2 ed3 24.Kd2 Qh6 25.Kd3 Qg6 26.Kd2 Qg5 27.Kd3–+) 20...Ree8 21.Bf6 (21.Kf1 Qh2 22.Re8 Re8 23.Bf6 Bg3–+ (23...gf6?! 24.Bh5–+)) 21...Qf6 (21...gf6?! 22.Nf1–/+) 22.Rc1?? (22.Kg1–+) 22...d4 (better is 22...Qd4 23.Kf1 Bh2–+) 23.Kg1–/+ Bf3 24.Nf3 h6 25.Rf1 Qg6 26.Qd2 Re3 27.Rce1 Rae8 28.Re3 Re3 29.g4 (29.Nh4 Qg3 30.Nf3 Kh7–+) 29...Qe6 30.Nh4?? (30.Qg2 Qa2–+) 30...Rh3 (better is 30...Re2 31.Qc1 Qe5–+) 31.Nf5 Qe5 (31...Rh2 32.Rf2 Rf2 33.Qf2–+) 32.Rf2 Kh7 33.Re2 (33.Qe2 Qd5 34.Qe4 Qe4 35.de4 Be5–+) 33...Qd5 34.Re4 g6 (34...Rh2 35.Qd1–+) 35.Ne7 Qd6 36.Qf2 Kg7 37.Nc6 (37.Nc8 Qd7 38.Na7 f5–+) 37...Rh2 38.Qf3 Rc2 39.Ne5 (39.Re5 c4 40.Kf1 cd3–+) 39...Qd5 (better is 39...Rc1 40.Kg2 f6 41.Qe2–+) 40.Nc6 (40.Qd1 Qb3 (40...Be5?! 41.Qc2 Bd6 42.Kf1–+) 41.Re2 Rc3 42.Qb3 Rb3–+) 40...Rc1 (better is 40...Qg5 41.Re2 Rc1 42.Kg2–+) 41.Kg2 Qa2 42.Re2 Rc2 (42...Qa4 43.Rf2 f5 44.Qd5 Rg1 45.Kg1 Qd1 46.Rf1 Qg4 47.Qg2=) 43.Kf1 Qa4 44.Rc2 Qc2 45.Na7 (45.Qe4 Qb1 46.Kf2 Qb5 47.Na7 Qb2 48.Qe2 Bg3 49.Kf3 Qe2 50.Ke2 h5–+) 45...Qb1 46.Kg2 Qa2 47.Kf1 Qa7 48.Qc6 Bh2 49.Kg2 (49.Qe4 Qa1 50.Qe1 Qb2–+) 49...Qc7 (better is 49...Qa2 50.Kh1 Bf4 51.Qg2 Qb1 52.Qg1 Qd3 53.Kg2 Qe4 54.Kf1–+) 50.Qf3 Qg3! 51.Qg3 Bg3 52.Kg3 f5 53.Kf4 fg4 54.Kg4 c4! 55.dc4 d3 (better is 55...Kf6 56.c5 Ke6 (56...bc5?? 57.b6+–) 57.cb6 h5 58.Kf3 Kd7–+) 56.c5 (56.Kf3 Kf6 57.c5–+) 56...d2 57.cb6 d1Q 58.Kf4 Qd6 (58...Qd6 59.Ke4 Qb6–+) 0–1. mikebaldini (1685) – aitrie (1700), gameknot.com, 2013.

7.Be2 Nbd7 8.0–0 Qc7 9.c4 Bd6 10.cd5 ed5 11.Nc3 d4 12.ed4 cd4 13.Na4 Nd5 14.Rc1 (Game adjourned by mutual agreement). Machete99 (2165) – Pinhead (2050), ICC, 2002.

7.Be2 Nbd7 8.c4 b6 9.Qc2 h6 10.d4 Bb7 11.Nbd2 dc4 12.dc5 Nc5 13.Bc4 Rc8 14.Rd1 Nce4 15.Ne4 Be4 16.Rd8 Bc2 17.Rf8 Bf8 18.Ne5 Ba4 19.Bd3 Rc5 20.Kd2 Bb5 21.Bd4 Rd5 22.Bc2 (better is 22.Bb5!? Rb5 23.Nc6–/+) 22...Ba3–+ 23.Bb3 Rd8 24.Ra1 Bd6 25.Nf3 Ne4 26.Kc1 Rc8 (26...Nf2?! 27.Ra7 Rc8 28.Kb1–+) 27.Kb2 Rc7 28.g3 Nf2 (28...Nf2 29.Bc2 Bd3–+) 0–1. combijack (1765) – voulagx (1900), gameknot.com, 2010.

7.c4 a6+=

8.a4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.Be2 b6 12.Nc3 (12.d3 Qc7=) 12...Bb7 (12...dc4 13.Bc4 Bb7 14.d3+=) 13.d4 (13.cd5 Nd5 14.0–0 Nc3 15.Bc3 Qc7=) 13...cd4 (better is 13...dc4 14.dc5 Bf3 15.gf3 Bc5 16.Bc4 Qc7–/+) 14.ed4? (better is 14.Qd4!? dc4 15.0–0+=) 14...Qc7 (14...dc4 15.Bc4 Qc7 16.Be2–/+) 15.Qc2 (15.Qd3 Bb4–/+) 15...dc4–+ 16.0–0 Bd6 (16...Nd5 17.Nd5 Bd5 18.Ne5–+) 17.g3–/+ Bd5 (17...Re8 18.Nd2 Bd5 19.Nd1–+) 18.Nd2 (18.Nd5 ed5 (18...Nd5?! 19.Qc4 Qb8 20.Rc1=) 19.Nd2 Re8–+) 18...h5 (18...Rc8 19.Nd5 ed5 20.Bc3–/+) 19.Bf3 (19.Nd5 ed5 (19...Nd5?! 20.Nc4 N7f6 21.Rc1=) 20.Bf3 Re8–/+) 19...h4 (19...Bf3 20.Nf3 Rc8 21.Rd1–/+) 20.Nde4 (20.Nd5 ed5 (20...Nd5?! 21.Nc4 Rc8 22.Rc1=) 21.Nb1 Bb4–/+) 20...Ne4 21.Be4 Nf6 22.Bd5 ed5 23.Qf5 hg3 24.fg3 Bg3 25.hg3 Qg3 26.Kh1 Qh4 27.Kg2–/+ Qd4 28.Na4= Qg4 29.Qg4 Ng4 30.Bd4 Re8 31.Nc3 Ne3= 32.Be3 Re3 33.Nd5 Re5 34.Nc3 Re3 35.Rf3+/– Rf3 36.Kf3+– g5 37.Ke4 g4 38.Kd4 f5 39.Kc4 f4? 40.Ne2 (better is 40.Nd5+–) ˝–˝. Nobile,Salvatore – Canal, corr Italy, 1971.

8.a4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.Be2 dc4 12.Bc4 Nb6 (12...b6 A) 13.d3 Bb7 (13...Qc7 14.0–0 Bb7 15.Nbd2 Ra8; 13...Bd6 14.0–0 Bb7 15.Nbd2 Qc7) 14.0–0 Qc7 15.Nbd2 Ra8; B) 13.0–0 Bb7 14.d3 Qc7 15.Nbd2 Ra8) 13.Be2 (13.d3 Nfd7 (13...Nc4 14.dc4 Qa5 15.Bc3 Qa2) 14.Bb3 Nd5 15.Nc3 Qa5) 13...Nbd5 (13...Bd7 14.Qc2 Nfd5 15.0–0 Nb4) 14.0–0 Qa5 (14...Qb6 15.d4 Bd7) 15.Nc3 (15.Be5 Ng4) 15...Rd8 (15...Bd7=) 16.Ne5 Qc7 17.Nc4 Bd7 (better is 17...Nb6!?=) 18.Nd5+/– Nd5 19.Be5 Qc8 20.Qb3 (20.e4!? Bb5 21.ed5 ed5 22.Nb6+/–) 20...b6 21.e4 Nb4? (better is 21...Nf6+/–) 22.Qg3+– f6 23.Nb6 Qb7 24.Nd7 (better is 24.Bc7 Bb5 25.Bb5 Rd2 26.Bc4 Qe4 27.Qf4 Qf4 28.Bf4+–) 24...Rd7+= 25.Bc3 Qe4 26.Bf3 Qd3 27.b6 Qd6 28.b7+/– e5 29.Ra1 Rd8 30.Ra8 Qb6?? 31.Bb4 cb4 32.Rc8 Bd6 33.Qh3 Qa5 34.Qe6 Kf8 35.Qd6 Kf7+– 36.Rc7 Kg6 37.Be4 Kh6 38.Qc5 Qc5 39.Rc5 b3 40.g3 b2 41.Rb5 1–0. Blaszczak – Pikulinski, Miedzyrzec Podlaski Poland, 1996.

8.a4 b6 9.Be2 +=.

8.a4 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.Nc3 b6 13.Bb2 Bb7 14.0–0= Bd6 15.d4 cd4 16.Qd4 Qc7 17.Qh4 Bf3=+ 18.gf3 Bh2 19.Kh1 Be5 20.Rc1 Qd6 21.Bb3 Rc8 22.Kg2 Nc5 23.Bc2 Nd3 24.Rd1 Qb4 25.Ne4? Qb2 26.Bd3–/+ h6 27.Nf6 Bf6 28.Qe4 Qc3 29.Qh7 Kf8 30.Be4 Qc7 31.Bc6 Rd8 32.Rd8 Qd8 33.Qe4 h5 34.Qa4 g5 35.Qa7 h4–+ 36.Qb7 Be5 37.Qa7 Bc7 38.Qb7 Qd6 39.Qa7 h3 (40.Kh3 Qh2 41.Kg4 Qh4#) 0–1. Ranby,Hans – Busch, corr SOK–90–59, 1990.

8.ba6 Na6 9.d4 b6 +=.

8.ba6 b6 9.Ne5 +=.

7.c4 b6

8.d4 Bb7 9.Nc3 Nbd7 10.Be2 Rc8 (10...dc4!? 11.Bc4 cd4 12.Qd4 Qc7–/+) 11.cd5+= Nd5 12.0–0 Bf6 13.Qd2 Nc3 14.Bc3 Qe7 15.Rfd1 Rfd8 16.Qb2 g6 17.Rac1 Bg7 18.dc5 Bc3 19.Qc3 Bf3 20.Bf3 Nc5 21.Rd8 Rd8 22.Ra1 Rd3 23.Qc4 (23.Qe5!?+=) 23...Qf6–/+ 24.Qa2 Qc3 25.a4? (25.Rb1 Qa3 26.Qa1 Rb3–/+) 25...e5?? (25...Rd2 26.Qb1 Nb3–+) 26.Rb1–/+ e4 27.Be2 Rd2 28.Qc4 Qc4 29.Bc4 Na4 30.Ra1 Nb2 31.Bb3 Rd7 32.g3 Kf8 33.Ra2 Nd3 34.Bc4 Ke7 35.Kf1 Kd6 36.Rc2 Rc7 37.Ke2 (37.f4!?–/+) 37...Ne5–+ 38.Rd2 Kc5 39.Bd5 f5 40.Rc2 Kd6 41.Rd2? (41.Rc7 Kc7 42.Bg8–+) 41...Nf3 42.Rd1 Rc2 43.Kf1 Nd2 44.Ke2 Kd5 0–1. Svensek,M (2055) – Ivanec,D (2175), TCh–SLO East 1st League, Sentjur SLO, 2009.

8.d4 Bb7 9.Nbd2 Nbd7 10.Bd3 dc4 11.Nc4 Be4 12.0–0 Bd3 13.Qd3 cd4 14.ed4 (14.Nd4 a6+=) 14...Nd5 15.Nfe5 Ne5 16.Ne5 Bd6 17.Rac1 Be5 18.de5 Qd7 19.Rfd1 Rac8 20.a4 Rc1 21.Rc1 Rc8 22.Qd2 Rc1 23.Qc1 Qc7 24.Qc6 Qc6 25.bc6 Kf8 26.Ba3 Ke8 27.Kf1 Kd8 28.Bd6 Nc3 29.a5 ba5 30.Ke1 Nb5 31.Kd2 Nd4 32.c7 Kc8 33.Kc3 Nb5 34.Kb3 Nc7 35.Ka4 Kb7 36.Ka5 Kc6 37.Bf8 g6 38.f3 h5 39.Bh6 Kd5 40.Be3 Ke5 41.Ba7 Nd5 42.Kb5 (42.g3 Ne7 43.Bc5 Nf5–+) 42...g5 (42...Kf4 43.Bf2–+) 43.Kc4 g4 44.Bb8 Kf5 45.fg4 Kg4 46.Kd4 h4 47.Ke4 f5 48.Ke5 f4?? (better is 48...Nf4 49.g3 Nd3 50.Kd4 Ne1 51.gh4 Nf3 (51...Kh4?! 52.Bg3 Kh3 53.Ke5=) 52.Ke3 Nh4 53.h3 Kh3–+) 49.Ke4 ˝–˝. Kalanyos,Ferenc (1995) – Erdelyi,Sandor (1935), HUN–chT2 Asztalos, 2008.

8.cd5 Qd5 9.Qc2 Bb7 10.Nc3 Qh5 11.Be2 Rd8 12.d4 cd4 13.Nd4 Qg6 (13...Qg5!? 14.Bf1 a6+= (14...Bg2? 15.Rg1+–)) 14.Qg6+= hg6 (worse is 14...fg6 15.Ne6 Rc8 16.0–0+–) 15.Bf3 Bf3 16.Nf3 a6 17.0–0 ab5 18.Nb5 Na6 19.Nfd4 Rac8 20.Rac1 Nb8 21.Na7 Rc1 22.Rc1 Bc5 23.h3 Kf8 24.Nb3 Na6 25.Nc5 Nc5 26.Bd4 Ra8 27.Nb5 Nfd7 28.Bc5 ˝–˝. Bender,Wolfgang (1755) – Perman,Torvald (2080), Saarlouis op 6th, 2003.

8.Be2 a6 9.a4 Nbd7 10.0–0 Bb7 11.d3 Qc7 12.Nbd2 Rfd8 13.Nb3 (13.ba6!? Ra6 14.cd5 Nd5 15.d4=) 13...dc4–/+ 14.dc4 Ng4 15.h3 (better is 15.Nbd2!?–/+) 15...Ndf6–+ 16.Qc2? (better is 16.Qe1 Bf3 17.hg4 Ng4 18.g3–/+) 16...Be4 17.Qc1 (17.Qe4 Ne4 18.hg4–+) 17...Bf3 18.hg4 Ng4 19.g3 Be2 20.Re1 Bf3 21.Nd2 Bb7 22.Bc3 Ne5 23.Qc2 Rd2! 24.Bd2 (24.Qd2 Nf3 Double attack (24...Nf3 Decoy); 24.Bd2 Nf3 Double attack) 24...Nf3 25.Kf1 Be4! 26.Qb2 (26.Qe4 Nd2 Double attack (26...Nd2 Deflection; 26...Nd2 Decoy)) 26...Bd3 27.Kg2 Qb7 28.Kh3 (28.e4 Be4 29.Re4 Qe4 30.Bc3 Ne1 31.Kf1–+) 28...Bf5 29.g4 Bg4! 30.Kg4 (30.Kg4 Qe4 Mate attack) 30...Qe4 31.Kg3 Bd6 32.Kg2 (32.Qe5 Be5 33.Kg2 Qg4 34.Kh1 Qh3) 32...Qg4 33.Kf1 Nh2 0–1. Hal1958 – Peter_Richard (1745), playchess.de, 2006.

8.Be2 Bb7 9.0–0 Nbd7 10.d4 Ne4 11.Nbd2 cd4 12.Bd4 (12.Nd4 Bd6=) 12...Ndc5+= 13.Ne4 (13.Qc2+=) 13...Ne4 (13...de4 14.Ne5 Qc7 15.Bc5 Bc5 16.Qd7 Qe5 17.Qb7–/+) 14.a4 (14.Ne5 Rc8=) 14...Bf6 (14...Rc8 15.Rc1+=) 15.cd5= Bd5 16.Rc1 Rc8 17.Qd3 Qe7 ˝–˝. Svensek,Marjan – Ivanec,Dezider (2175), SLO–chT East, 2005.

8.Be2 Bb7 9.0–0 Nbd7 10.h3 Qc7 11.d4 dc4 12.Bc4 cd4 13.Qd4 Bf3 14.gf3 Bc5 (14...Rfd8 15.Rc1+=) 15.Qd3 (15.Qh4!?=) 15...Ne5+= 16.Be5 Qe5 17.Qc3 Qh5 18.Kh2 (18.Kg2 Bd6 19.Ra2 a6 20.ba6 Qg5 21.Kh1 Qh4–/+) 18...Bd6 19.f4 Rac8 (19...Ne4 20.Qc2 Ng5 21.Be2 Qh3 22.Kg1–+) 20.Qd3 (20.Nd2!?–/+) 20...Rfd8–+ 21.Qe2 Qh6 22.Nd2 (22.Bb3 e5 23.Qf3 ef4 24.ef4 Rc5–+) 22...e5 (22...Bf4 23.Kg2–+) 23.fe5 (23.Qf3!?–/+) 23...Be5–+ 24.f4 Ba1 25.Ra1 Qh5 26.Qe1 (26.Ra2 Re8 27.Nf1 Qc5–+) 26...h6 (26...Qc5 27.Rd1–+) 27.Be2 (27.Rc1 Rc7–+) 27...Qc5 28.Bf1 (28.Nc4–+) 28...Qc3 (better is 28...Qc2 29.Rd1 Ne4–+) 29.Nf3 Qb2 30.Kh1 Rc2 (30...Nd5 31.Rd1 Qa3 32.Rd3–+) 31.Nd4 Rh2 (better is 31...Rc3!? 32.Nf5–+) 32.Kg1 Rd2?? (32...Ne4 33.Rb1 Qd2 34.Qd2 Nd2 35.Kh2 Nb1 36.a4–+) 33.Nc6?? (better is 33.Rb1 Qc3 34.Rc1=) 33...R8d7 34.Ne5 Rc7 35.Nc4?? Rc4! 36.Bc4 Ne4 37.Bf1? g5?? 38.Rd1?? Rh2 39.fg5 Ng5 40.Qg3+= Kh8? 41.Rd8+– Kg7 42.h4?? Qf6?? 43.hg5+– hg5 44.Rd6 Qb2 45.Qg5 1–0. Hal1958 – Andy1, playchess.de, 2005.

7.c4 Nbd7

8.Qc2 b6 9.Be2 Bb7 10.0–0 h6 11.Qb3 Rc8 12.d4 cd4 13.Bd4 Nc5 14.Bc5 Rc5 15.Nbd2 Ne8 (15...Qc7 16.Rfd1+=) 16.Rad1 (16.cd5 Bd5 17.Qa4 Qc7=) 16...Qb8 17.Rc1 Nd6 18.Ne5 (18.cd5 Bd5 19.Qa4 Qb7=) 18...Rd8 19.Ndf3 (better is 19.cd5!? Bd5 20.Nc6 Rc6 21.bc6 Bb3 22.c7+=) 19...dc4–+ 20.Bc4 (20.Nc4 Nc4 21.Bc4 Bf3 22.gf3 Qe5–/+) 20...Nc4 (20...Bf3!? 21.Nf3 Qc7 22.Nd2 Nc4 23.Nc4–+) 21.Nc4 Qc7 22.a4? (better is 22.Rc2–/+) 22...Bf3–+ 23.gf3 Rc8 24.Qb4 (24.Rfd1 Bf6 25.Nb6 ab6 26.Rc5 Qc5 27.Rd2–+) 24...Rg5 25.Kh1 Bb4 0–1. Kowacz,Agnieszka – Jedrocha,Katarzyna (1665), Indywidualne Mistrzostwa Polski Juniorek Poland, 2013.

8.Nc3 Nb6 +=.

8.d3 a6 9.ba6 ba6 10.Nc3 +=.

8.d3 a6–/+ 9.Nc3 Bd6 (9...Qb6!?–/+) 10.Be2= Qc7 11.Qb3 (11.0–0 b6=) 11...Nb6 (11...d4 12.ed4 cd4 13.Nd4=) 12.a4 a5 13.h3 (13.0–0 h6=) 13...dc4 (13...Rd8 14.Rd1=) 14.dc4+= e5 15.g4 (15.Nd2 Bf5+=) 15...Be6 (15...h6 16.e4=) 16.Ng5+= h6? (better is 16...Bd7!?+=) 17.Ne6+/– fe6 18.0–0–0 (18.h4 Nh7+/–) 18...Nh7 (18...Rad8 19.h4 Nh7 20.Ne4+/–) 19.Ne4 Be7 20.h4 Rad8 21.Rdg1 (21.g5 hg5 22.Bg4 gh4 23.Be6 Kh8 24.Bc3+–) 21...g6? (21...Nf6 22.Ng3 Nh7+–) 22.Qc2 Rf7 23.f3 Rdf8 24.Nd2 Rg7 25.g5! hg5 26.h5 gh5 27.Rh5 Rgf7?? 28.Rgh1 Bf6 29.Bd3 e4 30.Be4 Bb2 31.Kb2 Qe5 32.Kb1 (32.Kb1 Rg7 33.Bh7 Kf7 34.Ne4+–) 1–0. Spanoghe,Ivan (2195) – Lenoir,Thierry (1730), BEL–ch op, 2007.

8.d3 Qc7 9.Nc3 dc4 (9...Rd8 10.cd5 Nd5 11.Be2=) 10.dc4= Rd8 11.Qc2 (11.Bd3 Ne5 12.Ne5 Qe5=) 11...b6 12.Bd3 Bb7 13.0–0–0 (13.Ne4 Be4 14.Be4 Ne4 15.Qe4 Bf6 16.Bf6 Nf6=) 13...a6 (13...h6 14.Rd2+=) 14.h4 (14.ba6 Ra6 15.Kd2 Bf3 16.gf3 Ne5+=) 14...h5 (14...Qb8 15.Kd2–/+) 15.Ng5 (15.ba6 Ra6 16.Nb5 Qb8+=) 15...Ne5–/+ (worse is 15...Bg2 16.Rhg1 Qh2 17.f3+/–) 16.Bh7 (16.Be2 Bg2 17.Rhg1 Bb7+=) 16...Kf8 17.Nce4 (17.Ne2 ab5 18.Nf4 Bc8–/+) 17...Nh7 (17...ab5 18.cb5 Nd5 19.Ng3–+) 18.Nh7 Ke8 (18...Kg8 19.Nhg5–/+) 19.f4 (19.Neg5!? Rd1 20.Rd1+=) 19...Ng4–/+ 20.Neg5 (better is 20.ba6 Ra6 21.Neg5 Rd1 22.Rd1–/+) 20...Ne3?? (better is 20...Bg5 21.hg5 Rd1 22.Qd1 Ne3–+) 21.Ne6!+– Qf4 (21...fe6 Theme: Deflection from g6 22.Qg6 The nicest combinations are those leading to mate) 22.Ng7 (22.Nf4 Nc2 23.Nh5 f6 24.Kc2 Be4 25.Kb3 ab5 26.Rd8 Rd8 27.N7f6 gf6 28.Bf6 bc4 29.Kc4 b5 (worse is 29...Bg2 30.Re1 Rd7 31.Nf4+–) 30.Kb5 Bd3 31.Kc6 Rd6 32.Kc7 Rd7 33.Kb6 Rd6 34.Kc7 Rd7 35.Kc6 Rd6 36.Kc7=) 1–0. Stapleton,I – Shearer,H, Adelaide, 1947.

8.d4 a6 =.

8.d4 Ne4 9.Nbd2 b6 10.Ne4 de4 11.Ne5 Ne5 12.de5 Qd1 13.Rd1 a6 14.Be2 Rd8 15.0–0 Bb7 16.Rd8 Rd8 17.Rd1 Rd1 18.Bd1 ab5 19.cb5 Bd5 20.Be2 g5 21.Kf1 Kg7 22.Ke1 Kg6 23.g4 ˝–˝. Mitrovic,Zivadin (2185) – Kokeza,Mirko (2280), Stari Banovci SER, Vojvodina Ch Div2, 2013.

8.Be2 b6 9.Qc2 Bb7 10.0–0 Rc8 11.d3 Qc7 12.Nbd2 Rfd8 13.Rfd1 e5 (13...Bd6!?=) 14.cd5+= Nd5 15.Nc4 f6 (15...Bd6 16.a4+=) 16.Rac1 (16.g3 Bd6+/–) 16...Nf8 (16...a6 17.ba6 Ba6 18.a4=) 17.Qb3 Kh8 18.g3 Qd7 19.e4 Nc7 20.d4?? (20.a4 Nfe6+=) 20...Be4?? (better is 20...ed4 21.e5 Qb5 22.Qb5 Nb5 23.ef6 gf6–+) 21.de5 (21.dc5 Qb5 22.Rd8 Rd8 23.Qb5 Nb5+=) 21...Qb5 22.Qe3 (22.Qa2 Bd5=) 22...f5= 23.Nd6?? (better is 23.Ng5 Bg5 24.Qg5=) 23...Qb2–+ 24.Nf7 Kg8 25.Nd8 Rd8 26.Rd8 Bd8 27.Rd1 Be7 28.Bc4 Nce6 29.Ng5 Qc2 30.Rc1 Bg5 31.Qg5 Qc4! (31...Qc4 32.Qg7 Kg7 33.Rc4 Nd4–+) 0–1. Cernik,Lukas (2055) – Lacina,Adolf (2210), Klatovy op–A, 2000.

6.Nf3 Nbd7

7.c4 0–0 8.Qc2 b6 9.h4 Bb7 10.Ng5 g6 11.h5 Nh5 12.Nh7 Re8 13.g4 d4 14.Rh3= Nhf6 15.Ng5 Qc7 16.Ne6+= Qe5 17.Nf4 Kg7 18.d3 Ng4 19.Nd2 Ndf6 20.0–0–0?? Nf2–+ 21.Nf3?? Qe3 22.Kb1 Nh3 23.Nh3 Bf3 24.Rd2 Qe1 25.Ka2 Qf1 26.Rh2 Bd6 27.Rd2 Qh3 28.Bc1 Bf4 (29.Rf2 Bc1 30.Qc1 Re2 31.Re2 Be2–+) 0–1. Motley,G – Bostic,D, Detroit–ch MI opB, 1994.

7.c4 b6 8.Nc3 Bb7 9.d4 (9.cd5 ed5 10.Be2 Bd6=) 9...a6 (9...0–0!?+=) 10.cd5= Nd5 11.Nd5 ed5 12.ba6 Ba6 13.Ba6 Ra6 14.dc5 Nc5 15.Bg7 Rg8 16.Be5 h5 (16...Rg2 17.Bg3 Qd7 18.Qd4+=) 17.0–0 1–0. marekt – TenYearsAfter, chessworld.net, 2015.

7.c4 Nb6 8.cd5 ed5 9.Be2 =+.

7.c4 dc4 8.Bc4= Nb6 9.Be2 Nbd5 10.0–0 0–0 11.d3 Nd7 12.Nc3 Bf6 13.Qc2 b6 14.Rfd1 Bb7 15.d4 Rc8 16.Nd5 Bd5 17.Qd2 Qc7 18.Rdc1 Qb7 19.Ne1 e5 20.de5= Ne5 21.f4 Nd7 22.Bf3 Bb2 23.Qb2 Nf6 24.Rd1 Bf3 25.gf3 Rcd8 26.Kf2 Rd7 27.Qc2 Rfd8 28.Nd3 Qd5 29.Kg3? Qf5–+ 30.e4 Ne4! 31.fe4 Qe4 32.Re1 Rd3 (33.Qd3 Rd3 34.Kf2 Rd2 35.Kg3 Rg2 36.Kh3 Qf3 37.Kh4 Qg4#) 0–1. Bartle,Georg – Alix,Pascal, Baden–ch HT1, 2003.

7.Be2 Qc7 8.0–0 e5 9.d4 (9.d3!?=) 9...cd4–/+ 10.ed4 e4 11.Ne5 0–0 (11...Bd6 12.f4 ef3 13.Rf3–/+) 12.f4 ef3 13.Bf3 (13.Nf3 Re8 14.Nc3 Bd6–/+) 13...Bd6 14.Re1 Re8 15.Qe2 Nf8 (15...a6 16.Kh1 Ne5 17.de5 ab5 18.Nc3 Re5 19.Qf1 Re1 20.Re1+=) 16.Nc3 The isolani on d5 becomes a target (16.Kh1 Be6+=) 16...Be6 (16...Ng6 17.Kh1 Be6+= (worse is 17...Be5 18.de5 Bf5 19.Nd5 Nd5 20.Bd5+=)) 17.g3 Rac8 18.Qg2 Qa5 (18...N8d7 19.Nd7 Qd7 20.Nd5 (worse is 20.Bd5 Nd5 21.Nd5 Qb5–+) 20...Nd5 21.Bd5 Bd5 22.Qd5 Rc2 23.Qb3+=) 19.Nd5+= Nd5 20.Bd5 Bd5 21.Qd5 Be5 22.Re5 (worse is 22.de5 Rc2 23.Rf1 Re7–/+) 22...Re5 23.Qe5?? (better is 23.de5 Rc2 24.Rf1+=) 23...Rc2–+ 24.d5 (24.Qe1 Qb5 25.Bc3 Qd3–+) 24...f6 25.Qd4 Qb5 (25...Qb5 26.Rf1 Rb2–+) 0–1. Yearwood,R (2080) – Li,Kevin (2095), Victoria CAN, 2012.

7.Ne5 Ne5 8.Be5 0–0 =.

5.b5 g6

6.Nf3 Bg7 7.c4 0–0 8.Nc3 Qd6 9.d3 e5 10.Nd2 d4 11.Nce4 Ne4 12.Ne4 Qe7 13.Qe2 b6 14.0–0–0 (14.Nd6! de3 15.Nc8 ef2 16.Qf2 Rc8 17.g3+=) 14...a6–/+ 15.a4 Bb7 16.Nd2 Re8 17.Rg1 ab5 18.ab5 Nd7 19.g3 Nf6 20.Re1 Qd7 21.Bg2 Bg2 22.Rg2 Rad8 23.e4 Nh5 24.Kc2 Ra8 25.Rgg1 Ra2 26.Ra1 Rea8 27.Ra2 Ra2 28.Ra1 Ra1 29.Ba1 Nf6 30.Bb2 Ng4 31.Nf1 f5 32.f3 Nf6 33.Kb1 fe4 34.fe4 Qg4 35.Qc2? (better is 35.Qg4!? Ng4 36.Bc1=) 35...Qf3–/+ 36.Nd2 Qe2 37.Nb3 Qc2 38.Kc2= Bh6 39.h3 Nh5 40.g4 Nf4 41.Nc1?? Kg7?? 42.h4 g5–/+ 43.hg5 Bg5 ˝–˝. David,Bogdan Emanuel (1705) – Straze,Matija, Wch U10 Maribor, 2012.

6.Nf3 Bg7 7.Be2 0–0 8.0–0 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 c4 12.d3 Qa5 13.Nc3 cd3 14.Bd3 Nfd7 15.Ne2 Nc5 (15...e5!? 16.Bc3 Qa3=) 16.Bg7+= Kg7 17.Qa1 Qa1 18.Ra1 Nd3 19.cd3 Bd7 20.Rb1 Bc8 (20...Rc8 21.e4=) 21.Ne5 (21.Nf4 Bd7+=) 21...Nd7 22.Nd7 Bd7 23.d4 Ra8 24.g3 b6 25.Kg2 Ra5 Attacking the isolated pawn on b5 26.Nc3 Ra3 27.Rc1 Rb3 28.Kf3 Bb5–/+ 29.h4 Bc4 30.Nb1 b5 31.Nd2 Ra3 32.Nb1 Ra2 33.Nc3 Rb2 34.Nd1 Ra2 35.Kg2?? b4–+ 36.Rb1 b3 37.Nc3 Rd2 38.Na4 h5 39.Rb2?? Rd1?? 40.Nc3?? Rc1 41.Na4 Ra1 42.Nc3 Ra8 43.Nb1 Ra2 (43...Ra2 44.Rd2 f6–+) 0–1. Fournier,Frederic – MARCELO9, Active, 2008.

5.Bb5 Bd7

6.Bd7 Nbd7 7.c3 Bd6 8.bc5 Bc5 9.d4 Bd6 10.Nf3 0–0 11.0–0 Ne4 12.Nbd2 f6 13.Ne4= de4 14.Nd2 f5 15.c4 Qh4 16.g3 Qh6 17.c5 Bc7 18.Kg2 Nf6 19.Rh1 Nd5=+ 20.Nc4 f4 21.ef4 Bf4 22.gf4?? Nf4–+ 23.Kf1 Qh3 24.Ke1 Nd3 (25.Qd3 ed3–+) 0–1. alaamattar (2205) – atkins (2020), net–chess.com, 2005.

6.Bd7 Nbd7 7.bc5 Bc5 8.Ne2 0–0 9.Nbc3 Qe7 10.0–0 Ne5 (10...Nb6 11.d3+=) 11.Qc1 (11.Nd5 ed5 12.Be5 Qe5=) 11...Nc4+= 12.d3 Nb2 13.Qb2 a6 14.Na4 b5 15.Nc5 Qc5 16.h3 ˝–˝. Yannick – Drift, playchess.de, 2005.

6.Bd7 Nbd7 7.bc5 Bc5 8.Nf3 a6 9.0–0 0–0 10.c4 (10.Qe2!?+=) 10...dc4–/+ 11.Qc2 b5 12.d3 Rc8 (12...cd3 13.Qd3 Nb6 14.Qb3–/+) 13.dc4 bc4 (13...Be7 14.Nbd2 Nb6 15.Ne5–/+) 14.Nbd2 (14.Qc4 Ba3 15.Bf6 Qf6+= (15...Rc4? 16.Bd8 Bb2 17.Ra2+–; 15...Nf6?! 16.Qe2 Bb4 17.Ra6=)) 14...Qc7 (14...Nb6!?–/+) 15.Rfc1 Be7 16.Nc4 Nb6 17.Nfe5 Nfd7 (17...Nc4 18.Qc4 Qc4 19.Nc4=) 18.Nd7 (18.Nb6 Qb6 19.Qc8 (19.Nd7?! Rc2 20.Nb6 Rb2+=) 19...Rc8 20.Rc8 Nf8 21.Bd4+/–) 18...Qd7? (better is 18...Nd7 19.Qe2 Rfd8=) 19.Nb6+– Rc2 20.Nd7 Rb2 21.Nf8 Bf8 22.h3 g6 23.Rc6 a5 24.Ra6 Rb5 25.Ra7 h5 26.Kf1 Bg7 (26...Kg7 27.a4 Rd5 28.Rc1+–) 27.Rd1 Bb2 (27...Bc3 28.Rdd7 Rb1 29.Ke2 Rb2 30.Kd3+–) 28.a4 (28.Rb1 Kg7+–) 28...Rc5 (28...Rf5 29.g4 hg4 30.hg4+–) 29.Rdd7 Rf5 30.Rab7 (30.g4 Rf3 31.Kg2 Rf6 32.Rd8 Kg7+–) 30...Bc3 31.Ke2 Kg7 32.Rb5 Rf6 33.Rc7 Bb4 34.Rc4 Kf8 35.Rb7 (35.Rb8 Ke7+–) 35...Rf5 (35...e5 36.g4+–) 36.Rcc7 (36.g4 hg4 37.hg4 Rd5+–) 36...Bd6 37.Rd7 Bb4 38.e4 (better is 38.g4!? hg4 39.hg4 Rc5+–) 38...Rf4 (38...Rf6 39.Rb5+–) 39.Ke3 (better is 39.g3!? Re4 40.Kf3 Re5 41.Rf7 Kg8 42.Rg7 Kh8 43.Rg6 Bc5+–) 39...Rf6 40.Rbc7 g5 41.Rf7?? (better is 41.Rd8 Kg7 42.Rcc8+–) 41...Rf7–+ 42.Rc6 Re7 43.f4 gf4 44.Kf4 Bd2 45.Ke5 Kf7 46.g4 hg4 47.hg4 Bg5 48.Ra6 Bf6 49.Kd6 Bc3 50.Rc6 Bb4 51.Ke5 Re8 52.Rc7 Kg6 53.Rc1 Kg5 54.Rg1 Bc3 55.Kd6 e5 56.Rg3 Bd4 57.Kc6 Kf4 58.Rg2 Rg8 59.Kb5 Rg4 60.Rc2 Ke4 61.Ka5 Kd3 62.Ra2 e4 63.Kb5 e3 64.Rh2 e2 (64...e2 65.Re2 Ke2–+) 0–1. Yannick – Matu, playchess.de, 2005.

6.Bd7 Nbd7 7.bc5 Nc5 8.Nf3 Bd6 =+.

5.c3 b6

6.Bb5 Bd7 7.Be2 =+.

6.Bb5 Nbd7 7.Bc6 Rb8 =.

6.Bb5 Nbd7 7.Nf3 a6 8.Be2 Bb7 9.0–0 Bd6 10.h3 Qc7 11.d4 c4 12.Re1 0–0 13.Nbd2 b5 14.Nf1 a5–/+ 15.Qc2 ab4 16.cb4 Ra7 17.N1d2 Rfa8 18.Bf1 Nb6 19.Nb1 Na4 20.Be2 Ne4 21.Nbd2?? Nb2–+ 22.Qb2 c3 23.Qc2 cd2 (24.Qc7 de1R (24...de1N?! 25.Qc1 Nf3 26.gf3–+) 25.Ne1 Bc7–+) 0–1. Queenwomen – tossubanaani, ChessWorld.net, 2005.

6.Bb5 Nbd7 7.Nf3 Bb7 8.0–0 =+.

6.bc5 Bc5 7.c4 0–0 =+.

6.bc5 Bc5 7.d4 Bd6 8.c4 Bb7 9.Nf3 0–0 10.cd5 Bd5 11.Nc3= Bb7 12.Qa4 a6=+ 13.Bd3 Nbd7 14.Be2 b5 15.Qb3 Nb6 16.0–0 Nfd5 17.Ne4 Nf4–/+ 18.Nd6? Ne2–+ 19.Kh1 Bf3 20.gf3 Qd6 21.Rae1 Nf4 22.ef4 Qf4 23.Rg1 Nc4 24.Bc1 Nd2 25.Qd3?? Qf3–+ 26.Qf3 Nf3 27.Bh6 g6 28.Bf8 Kf8 29.Rgf1 Ne1 30.Re1 Rd8 31.Re4 Ke7 32.Kg2 f5 33.Rh4 h5 34.Kf3 Rc8 35.Kf4 Kf6 36.Rh3 g5 37.Kf3 Rc3 38.Kg2 Rh3 39.Kh3 a5 40.Kg3 b4 41.ab4 ab4 42.h4 b3 43.hg5 Kg5 44.f4 Kg6 (45.d5 ed5–+) 0–1. Onoprienko,A – Gergelits,Vaclav, Czech–ch U14, 2000.

6.Nf3 Bd6 =+.

5.c3 c4

6.d3= cd3 7.Bd3 Be7 8.Nf3 0–0 9.0–0 Nbd7 10.Nbd2 a6 (10...e5 11.e4=) 11.Qc2 g6 12.c4 dc4 13.Nc4 b5 (13...b6 14.e4+/–) 14.Na5 Qb6 (14...Nd5 15.Be4+/–) 15.Nc6 Bd6 16.Rac1 Re8 17.Rfd1 Bb7 18.Bg6 Bh2 19.Nh2 hg6 20.Rd6 Rac8 21.Bf6 Rc6 22.Rc6 Qc6 23.Qc6 Bc6 24.Rc6 Nf6 25.Ra6 Rc8 26.Rb6 Rc1= 27.Nf1 Ne4 28.Rb8 Kg7 29.Rd8 Nc3 30.g4= Ra1 31.Ra8 Ne4 32.Kg2 Ra2 33.Ng3 Nf2 34.Kf3 Nd3 35.Ne4 Ne5 36.Kf4 Nc4 37.Nc3 Ra3 38.Ra3 Na3 39.Ke5 g5–/+ 40.e4 Nc2 41.Nb5 Nb4 42.Kd6 Nd3 43.Ke7? Ne5 44.Nd6 Kg6 45.Kf8 Ng4 46.Nf7 Kf6 47.Nd6 Nf2 48.Nc4 g4 49.e5 Kf5 50.Ke7 g3 51.Ne3 Ke5 52.Ng2 Nh3 0–1. Wall,Bill – Daisy, Internet, 2003.

6.Nf3 Bd6 7.Be2 0–0 8.0–0 e5 9.a4 Nc6 10.b5 Na5 11.Ba3 Nb3 12.Bd6 Qd6 13.Ra3 Bf5 14.d3 cd3 15.Rb3 de2 16.Qe2 Bg4 17.h3 Bh5 18.g4 Ng4 19.Ne5 Nf6 20.Ng4 Ne4 21.Qe1 f5 22.Nh2 Qg6 23.Kh1 Qh6 24.f3 Ng5 25.Qg3 Rf6 26.a5 Rg6 27.Qe5 Nh3 28.Qd5 Kh8 29.Qf5 Bf3 30.Qf3 Ng5 31.Qf8 1–0. Machete99 – guest1856, ICC, 2002.

5.c3 Nc6

6.Bb5 Bd7 7.Nf3 Qb6 8.Ba4 Bd6 =+.

6.Bb5 Bd7 7.f4 Qb6 8.Bc6 Bc6 9.Nf3 –/+.

6.Bb5 Bd7 7.f4 Ne4 8.Bc6 Bc6–/+ 9.Nf3 Qb6 10.0–0 a5 11.d3 Nf6 12.Ne5 Be7 13.Nd2 cb4–/+ 14.ab4 Qe3 15.Kh1 Qb6 16.ba5?? Qb2–+ 17.Nc6 bc6 18.c4 Qb7 19.cd5 cd5 20.Qa4 Nd7 21.Rfb1 Qa7 22.Rb5 0–0 23.a6 Nc5 24.Qa3 Ne4 25.Qa2 Nf2 26.Kg1 Nd3 27.Kf1 Qf2# 0–1. vidyashankarh (1930) – wlittle (2100), net–chess.com, 2002.

6.Nf3 Qc7 7.d3 Bd7 8.Be2 Be7 9.Nbd2 0–0 10.0–0 Bd6 11.b5 Ne5 12.c4 Neg4 13.h3 Bh2? 14.Kh1+– Be5 15.Ne5 Ne5+/– 16.a4 b6 17.d4 Ng6 18.dc5+/– bc5 19.Rc1 Qc8 20.Ba3 e5 21.cd5+– Bh3? 22.Bf3 Nh4? 23.gh3 Qh3 24.Kg1 Ng4!? (25.Re1 Qh2 26.Kf1 Qf2#) 0–1. Reimer,Karl – Strauss,Mathias, PF–op Bellheim, 1994.

5.c4 cb4

6.ab4 dc4 7.Bc4 Be7 8.Nf3 0–0 9.Qb3 Nbd7 10.Na3 Nb6 11.Bd3 Nfd5 12.b5 Bf6 13.Ne5 Nd7 14.Nac4 Nc5 15.Qc2 h6 16.Qb1 Bd7 17.Nd7 Qd7 18.Bf6 Nf6 19.Be2 Rfd8 20.d4 Nce4 21.Ra3 Qc7 22.0–0 Nd6 23.Nd6 Qd6 24.Qa2 Qb6 25.Ra1 Rdc8 26.Ra7 Ra7 27.Qa7 Rc1 28.Bf1 Qa7 29.Ra7 Ne4 30.Ra2 Rb1 31.f3 Nd6 32.Kf2 g6 33.Ra7 Rb2 34.Kg3 g5 35.e4 Kg7 36.Bd3 Rd2 37.Ra3 Rb2 ˝–˝. Brown,P – Mather,W, ECC 4th FIDE, 1996.

6.cd5 ba3 7.Bb5 Bd7 8.Bd7 Qd7 (8...Nbd7!? 9.Bf6 Qf6 (< 9...gf6 10.de6 fe6 11.Qh5 Ke7 12.Nf3=) 10.Na3 ed5–/+) 9.de6= Qe6 10.Na3 Nc6 11.Nf3 Be7 12.0–0 (12.Nb5 Qd7=) 12...0–0 13.Qc2 (13.Nb5 Rfc8=) 13...Rac8 (13...Rfc8!?=) 14.Ng5+= Nd4 (14...Nb4!? 15.Ne6 Nc2 16.Nf8 Na1 17.Nh7 Ne4 18.Ra1 Kh7+=) 15.Bd4+/– (15.ed4?! Qd5 (< 15...Rc2 16.Ne6 Rb2 17.Nf8+/–) 16.Qa4 Qg5 17.Qa7 Nd5=+) 15...Qg4 (15...Qd5 16.Qb2 Qg5 17.Qb7+/–) 16.Qb3 Qg5 17.Qb7 Bd6 18.Ba7 (better is 18.f4 Qh4 19.g3+/–) 18...Bh2?? (18...Qa5 19.Nb5 Qd8 20.Bb6+–) 19.Kh2+= Qh4 20.Kg1 Ng4 21.Rfb1 (21.Bb8! Rb8 22.Qc7+=) 21...Qf2=+ 22.Kh1 Qh4 23.Kg1 Qf2 24.Kh1 Qh4 25.Kg1 Qf2 ˝–˝. mgriffin – fled, net–chess.com, 2001.

6.cd5 ed5 7.ab4 Bb4 8.Qa4 Nc6 9.Bb5 Be7 10.Bc6 bc6 11.Qc6 Bd7 12.Qc1 0–0 13.d3 Qb6 14.Nf3 Rab8 15.0–0?? (better is 15.Bd4 Qb5 16.0–0=) 15...Qb2–+ 16.Ra7 Qc1 17.Rc1 Bd6 18.Nbd2 Bf5 19.d4 Ne4 20.Ne4 Be4 21.Ng5 Rb1 (21...Bd3!? 22.h3–+) 22.Rb1 Bb1 23.Rd7 Bc7?? (better is 23...Rc8 24.g4 Rc6–+) 24.Rc7+/– h6 25.Nf3 Rb8 26.Ne5 Bf5 27.g3 (27.g4!? Be6+–) 27...Bh3 28.Rc1 f6 29.Nd3 Bf5 30.Nf4 Be4 31.h4 g5 32.hg5 hg5 33.Ne2 Kg7 34.Rc7 Kg6 35.Rc1 Rh8 36.Kf1 Rh1 37.Ng1 g4 38.Ke2 Kf5 39.Rf1 Bg2 40.Re1 Ke4 41.Kd2 Kf5 42.Ne2 Rh2 43.Nf4 Be4 44.Rf1 Bf3 45.Kc3 Bg2 46.Ng2 ˝–˝. Bopeep – craig4000, ChessWorld.net, 2012.

6.cd5 ed5 7.ab4 Bb4 8.Bd4 –/+.

6.cd5 ed5 7.ab4 Be7 8.b5 (8.Bb5 Bd7 9.Bd7 Nbd7 (< 9...Kd7 10.Qa4 Nc6 11.Nf3=) 10.Bf6 Nf6 11.Qa4 Qd7=) 8...0–0=+ 9.Nf3 b6 (9...Bg4 10.Bd4=+) 10.Be2 Bb7 (10...a5 11.0–0=) 11.0–0 a6 12.ba6 Ba6 (13.Ba6 Ra6 14.Ra6 Na6=). Drefke,A – Zimmer,Georg, corr SOK–89–39, 1989.

6.cd5 Qd5 7.ab4 Bb4 8.Nc3 Bc3 9.Bc3 0–0 (9...Qd8 10.Bd4=+) 10.Bf6= gf6 11.Qg4 Qg5 12.Be2 (12.Qc4!?=+) 12...Qg4–/+ 13.Bg4 Nc6 14.Ne2 (14.Bf3 Nb4 15.Ke2 Rd8=+) 14...Ne5 15.Bh5 (15.Bf3 Nd3 16.Kf1 Rd8–/+) 15...Nd3–+ 16.Kd1 0–1. wlittle (1890) – nhoj (1680), net–chess.com, 2001.

6.cd5 Nd5 7.ab4 Nb4 8.Nf3 Nd7 9.Bb5 a6 10.0–0 Rb8 11.Bc4 (11.Be2 b5=+) 11...b5–/+ 12.Bb3 (12.Be2 Nf6–/+) 12...Nf6 (12...Bb7 13.d4–/+) 13.Nc3 (13.Be5 Bd6=+) 13...Nd3–+ 14.Qc2 Nb2 (14...Bb7 15.Nd4 Nb2 16.Qb2–+) 15.Qb2 Be7 16.Rfc1 Bb7 17.Ne5 Nd5 (better is 17...0–0!?–/+) 18.Bd5 (18.Nd5 ed5 19.Nc6 Bc6 20.Rc6 Bf6=) 18...ed5 19.Nb5 0–0 (19...ab5 20.Qb5 Kf8 21.Nd7 Kg8 22.Rab1+/– (< 22.Nb8 Qb8 23.Rcb1 f5+–)) 20.Nd4 Bd6 21.Ndf3 (21.Nd3 Qg5=) 21...Qe7 (21...f6 22.Nd3=) 22.d4 Rfc8 23.Qd2 f6 24.Ng4?? (24.Rc8 Bc8 25.Nc6+–) 24…h5 0–1. wlittle (2300) – danielmarcolino (2355), net–chess.com, 2004.

6.ab4 Bb4

7.Qa4 Nc6 8.cd5 ed5 9.Bb5 Qd6 10.Bf6 Qf6 11.Nf3 0–0 12.0–0 Bg4 13.d4 Bf3 14.gf3 a5 15.f4 Qg6 16.Kh1 Qe4 17.Kg1 Rfe8 18.h4 Qg6 19.Kh2 Qg4 20.Bc6 Qh4 21.Kg2 Qg4 22.Kh2 Re6 0–1. McCarthy,Mike – Beltran Oliver,Jorge, IECG, 2000.

7.Qa4 Nc6 8.cd5 ed5 9.Bb5 Be7 10.Bc6 bc6 11.Qc6 Bd7 12.Qc1 0–0 13.Nf3 Bb5 (13...Rc8 14.Nc3+=) 14.Nd4 (14.Nc3 a6=) 14...Qb6 (14...Rc8 15.Nc3 Bd3 16.Ra7–/+) 15.Nb5 Qb5 16.Nc3 Qd3 (16...Qd7 17.0–0+=) 17.Qb1= Qb1 18.Rb1 a5 (better is 18...Rab8=) 19.0–0 (19.Na4!?+=) 19...Rfb8 (19...a4 20.Ba1–/+) 20.Ba1 Bb4 21.Rfd1 (21.Rb2 Ra7+=) 21...Kf8 (21...a4 22.Na2 Bd2 23.Rb8 Rb8 24.Kf1–/+) 22.f3 (22.Na4 Bd2 23.Rb8 Rb8 24.Bf6 gf6=) 22...Ke7 (22...a4 23.Kf2+=) 23.Kf2 (23.Na4 Ra6=) 23...Ke6 (23...a4!?+=) 24.Na4 (24.Ne2 g5+=) 24...g6 25.Bd4 Nd7 26.Ke2 Kd6 (26...Bd6 27.Ra1=) 27.Bc3 Nc5 (27...Bc3 28.Nc3 Rb1 29.Rb1=) 28.Bb4 (28.Nc5 Kc5 29.Bd4 Kb5=) 28...ab4+= 29.Nc5 Kc5 30.Rdc1 Kd6 31.Rb3 Ra3 32.Rcb1 Rb3 33.Rb3 Kc5 34.d3 Ra8 35.Rb2 Ra1 36.Rc2 Kb5 37.Rc7 (37.d4!?+=) 37...Ra2–/+ 38.Kd1 Rg2 39.Rc2?? (39.Rf7 b3 40.Rb7 Ka4 41.Kc1 (41.Rh7?? b2 42.Rb7 Ka3–+) 41...Rh2 42.e4 de4 43.de4–+) 39...Rg1 (better is 39...Rc2 40.Kc2 Ka4–+) 40.Kd2 b3 (better is 40...Rh1 41.Rc7 Rh2 42.Kc1 f5–+) 41.Rc1?? (41.Rc7 Kb6 42.Rc8 Rg2 43.Kc1 b2 44.Kb1 Rh2 45.e4 de4 46.fe4–+) 41...Rg2 (better is 41...Rc1 42.Kc1 Kb4 43.Kb2–+) 42.Kc3 b2 43.Rb1 Rh2 44.Rb2 (44.e4–+) 44...Rb2 45.Kb2 h5 46.e4 h4 0–1. Vasilev,Sergey – Szurkos,Andras (1705), First Saturday FM–B Oct, 2014.

7.cd5 0–0 8.de6+= Be6 9.Nf3 Nc6 10.Bb5 Bd7 11.0–0 a6 12.Ba4 (12.Bc6 Bc6 13.Nd4 Rc8=) 12...b5+= 13.Bc2 Be7 14.Nc3 (14.Bf6 Bf6 15.d4 a5=) 14...Bg4 15.h3 Bh5 16.g4 Bg6 17.Bg6 hg6 18.g5 (18.d4 Re8+=) 18...Nh5 (18...Nh7 19.Qc2+=) 19.Ne4 (19.Qc2 b4 20.Ne4 Qd7=) 19...Qd7 20.Kg2 Qf5 (20...a5 21.d4+=) 21.d3 Qe6 22.h4 (better is 22.Nd4!? Nd4 23.Bd4=) 22...Rfd8 23.Nd4 Nd4 Black gets the initiative 24.Bd4 Nf4! 25.ef4 Rd4 26.Qf3 Rad8 27.Rfd1 b4 28.Ra5 (28.Ng3 Qd6–/+) 28...R4d5 29.Rd5 Rd5 30.Re1 Qd7 31.Rd1 a5 32.Qh3? (better is 32.h5–/+) 32...Qh3–+ 33.Kh3 a4 34.f3 a3 35.d4 b3 36.Nc3 Ra5 37.Na2 ba2 38.Ra1 Rd5 39.Ra2 Rd4 40.Kg3 Bd6 41.Rc2 Bf4 (41...Bf4 42.Kh3 Rd2 43.Rc8 Kh7–+) 0–1. Regniez,Jeremy (1790) – Bessat,Remy (2030), Fenain FRA, 2007.

7.cd5 ed5 8.Qa4 Nc6 9.Bb5 Be7 10.Bc6 bc6 11.Qc6 Bd7 12.Qc2 Rc8 13.Qd1 Bb5 14.Ra7 0–0 15.Nc3 Bd3 16.Nge2 Rb8 17.Bc1 Bc5 18.Ra1 Re8 19.0–0 d4 20.Na4 Ra8?? (better is 20...Bd6 21.Nb2 Bb5 22.Nd4 Bf1 23.Qf1 Qc7+=) 21.Nc5+– Be2? (better is 21...Ra1 22.Nd3 de3 23.de3 Qc7+–) 22.Ra8 Bd1 23.Rd8 Rd8 24.Rd1 de3 25.fe3 h6 26.d4 Nd5 27.Rf1 Nc3 28.Rf2 Nd5 29.g3 Nf6 30.Kg2 Ng4 31.Ra2 h5 32.h3 Nf6 33.Kf3 g5 34.Ra6 Kg7 35.Ra7 Kg6 36.Nd3 g4 37.hg4 Ng4 (37...hg4 38.Kf4 Nd5 39.Kg4 f5 40.Kf3+–) 38.Nf4 Kh6 39.Rf7 Rc8 40.Bd2 Rc2 (40...Nh2 41.Ke2 Rc2 42.Rf6 Kh7 43.Nh5+–) 41.Ke2 (41.Bb4!? Nh2 42.Ke4 Rc8 43.Bf8 Rf8 44.Rf8 Kg7 45.Ne6 Kg6+–) 41...Ra2 42.Rf5 Ra6 (42...Nf2 43.Kf2 Rd2 44.Kf3+–) 43.Rh5 Kg7 44.Rg5 Kf6 45.Rg6 Ke7 46.Ra6 1–0. combijack (1815) – shortsell (1660), gameknot.com, 2012.

7.cd5 ed5 8.Nf3 –/+.

7.cd5 Nd5 8.Bg7 Rg8 9.Bb2 Nc6 10.Qh5 Nf6 11.Qh4 Be7 12.Nf3 Rg4 13.Qh3 e5 14.Bc3 Qb6 15.Qh6 (15.Be5?? Ra4!! 16.Bd3 Ne5 17.Ne5 Ra1–+) 15...Bf5 16.Na3 (16.Be5? Ra4 17.Na3 Ra3–+) 16...Rg6 17.Nc4 Qb3 18.Qh4 Ne4 (18...Rg4 19.Nd6 Kd7–/+ (worse is 19...Bd6 20.Qf6 Qe6 21.Qh8 Bf8 22.Ne5 Ne5 23.Be5+/–)) 19.Qh7+= Nc3 20.Nce5 Ne5 21.Qh8 Bf8 22.Qe5 Be6 23.Qc3 Qc3 24.dc3 Rc8 (24...Bg7 25.Kd2+–) 25.Ne5 Rg5 26.f4 Rh5 27.Bb5 Ke7 28.Ra7 Bd5 29.0–0 Rc3 30.e4! Be4 31.Re1 (better is 31.Ra8!? Rc2 32.Re1+–) 31...Ke6+/– 32.Nd7 Rb5 33.Nf8 Kf5 34.Ra2 Rd5 35.Rf2 Bc2 36.Nh7 b5 37.h4 b4 38.h5 Rb5 39.Kh2 Rc6?? 40.Kh3+– Rc3 41.Kh4 (41.Kh4 Be4 42.g4 Ke6 43.Re4 Kd6 44.Rd2 Kc6 45.Ng5+–) 1–0. Kaczmarek,Aleksander (1835) – Kuciel,Wladyslaw (2145), Chorzow, 2008.

5.c4 Nbd7

6.Qa4 Be7 7.Nf3 0–0+= 8.Be2 dc4 (8...Nb6 9.Qb3+= (9.Qc2 Nc4 10.Bc4 dc4 11.Qc4 cb4 12.ab4) 9...dc4 10.Bc4 cb4 11.ab4 Nc4 12.Qc4) 9.Bc4 (9.bc5 Nc5 10.Qc4 b5+= (10...b6 11.Nc3 Ba6 12.Nb5) 11.Qc2 Bb7 12.Nc3) 9...Nb6 (9...a6 10.bc5 (10.Qc2 b5 11.Bd3 h6 12.Bf6) 10...Nc5 11.Qc2–/+ b5 12.Be2) 10.Qb3+= (10.Qc2 cb4 11.ab4 Nc4 12.Qc4) 10...Nc4 11.Qc4 cb4 12.ab4 Bd7 13.b5 (13.Ne5 a6 14.Nc3 Rc8+=) 13...Qb6 14.Nc3 Rfc8 15.Qh4 (better is 15.Qd4!? Qd4 16.Nd4–/+) 15...Bb5–+ 16.Ng5 (better is 16.Ne5–+) 16...Bd3 17.Na4 (17.Nd1 Nd5 18.e4 Be4 19.Qe4 Bg5–+) 17...Qb3 18.Nf3 (18.e4 h6 19.Nf3 b5–+ (worse is 19...Be4 20.Qf4–+)) 18...Rc4 19.Nd4 Ra4 20.Nb3 (20.Qh7 Kh7 21.Nb3 Ra1 22.Ba1 Rc8–+) 20...Rh4 21.Bd4 a6 22.f3 Rh5 23.Nc1 Bb5 24.Kf2 Rd5 25.Nb3 Rdd8 26.Rhc1 Rdc8 27.Na5 Bc6 28.Nc4 Re8 29.e4 Nd7 30.Na5 Rec8 31.d3 e5 32.Be3 Bb4 33.Nc4 a5 34.Bb6 a4 35.Be3 f6 36.Rab1 Be7 37.Ra1 Kf7 38.Rc2 b5 39.Nb2 Bb7 40.Re2 a3 41.Nd1 b4 42.Bc1 Bc5 43.Kg3 Bd4 44.Ba3 ba3 45.Raa2 Nc5 46.Nf2 Bc6 47.Red2 Bd7 48.Nd1 Be6 0–1. Kabera,Godfrey – Kumar,M (2025), 37th Olympiad, Turin ITA, 2006.

6.Qb3 a6 7.cd5 ed5 8.Nc3 +=.

6.Qb3 b6 7.d4 Qc7 8.Nf3 Bb7 9.Nc3 Bd6 (9...cd4 10.Nb5 Qd8 11.Nbd4=) 10.h3 (10.Nb5 Qb8+/–) 10...0–0 (10...dc4!? 11.Qc4 a6+=) 11.Nb5+= Qb8 12.Be2 (12.Nd6 Qd6 13.dc5 bc5 14.Bf6 Nf6 15.bc5 Qc7=) 12...Bc6 (12...Be7 13.bc5 bc5 14.dc5+=) 13.Nd6= Qd6 14.Ne5 (14.dc5 bc5 15.Qc3 cb4 16.ab4 dc4 17.Qc4 Rfb8=) 14...dc4 15.Nc4 Qc7 16.Rg1 (16.0–0!?=) 16...Bd5 17.Qd3 Rfd8 18.Nd2 Qb7 (18...Qh2 19.Kf1–/+) 19.Bf3 (19.dc5 bc5 20.Bf6 Nf6 (20...gf6? 21.e4+–) 21.bc5 Rac8=) 19...Bf3+= 20.Nf3 (20.gf3 e5+=) 20...cb4 (20...e5 21.Qb5 a6 22.Qc4 ed4 23.ed4 Re8 24.Kf1–/+) 21.ab4+= Rac8 22.Ke2 Nd5 23.Qb3 (23.b5 e5 24.Kf1 ed4 25.Qd4 N5f6+=) 23...Rc7 (23...Qc6!? 24.Kd1 Qb5–/+) 24.Rgc1= Rdc8 25.Kf1 N5f6 26.Nd2 (26.b5 Ne4=) 26...Qd5 (26...Rc1 27.Bc1 Ne4 28.Ne4 Qe4 29.f3=) 27.Qd1 (27.Rc7!? Rc7 28.Qd5 ed5 29.b5+=) 27...Qb5+= Black fights for the Initiative 28.Kg1 Rc1 29.Bc1 Rc7 30.Rb1 Nd5+= 31.Qf1 Qf1–/+ 32.Kf1 Nb4! 33.Rb4 Rc1 34.Ke2 Rc7 35.Ne4 Kf8 36.Nd6 Rc2–+ 37.Kf3 Ra2 38.Rc4–/+ a5 39.Nb5 Ke7–/+ 40.Rc7 Rb2 41.Na3 Kd6 42.Ra7–/+ Kc6 43.Nc4 Rb4 44.Na5 ba5 45.Ra5 Nf6 46.Ra7 Rb7 47.Ra6 Kb5 48.Ra1 Nd5 49.Rb1 Kc6 50.Rc1 Kb5?? 51.Rb1 Nb4 52.Ra1 Rc7 53.Ra8 g6 54.Rb8 Ka4 55.Ra8 Kb3 56.Rb8 Kc3 57.Ra8 Kd2 58.Ra4 Nd5 59.Ra2 Rc2 60.Ra7 Rc7?? 61.Rb7?? Kd3 62.Rb3 Rc3 63.Rb7 Rc1 (63...f5 64.g3 Rc2 65.Rh7–+) ˝–˝. Dessing,B – Langerak,W, Rijswijk, 2000.

6.bc5 Bc5 7.d4 Bd6 =.

5.Bd3 cb4=+

6.Nf3 Nc6 7.0–0 ba3 8.Na3 a6 9.Nb5 Be7 10.Nbd4 0–0 11.Nc6 bc6 12.c4 Bb7 13.Qb1 Qc7 (13...Rb8 14.Qc2=) 14.Be5 Qd7 15.cd5 cd5 (15...ed5?? 16.Bf5 Qd8 17.Qb7+–) 16.Rc1 Rfc8 17.Qb2 Rc1 18.Rc1 (worse is 18.Qc1 Ne4–/+) 18...a5?? (better is 18...Rc8 19.Rb1 Bc6 20.Ba6 Ra8+=) 19.Rc7+– Qa4 (19...Qe8 20.Qb7 Rb8+–) 20.Qb7 Qd1 (20...Rf8 21.Re7 Ne4 22.Bf1+–) 21.Bf1 Re8 (21...Rf8 22.Re7 a4 23.Ng5+–) 22.Re7 (22.Re7 Re7 23.Qe7+–) 1–0. capablancaven (1760) – romast (1755), gameknot.com, 2011.

6.Nf3 Nc6 7.0–0 Bd6 8.ab4 Nb4 (8...Bb4 9.Ne5=+) 9.Nc3 (9.Bb5 Bd7 10.Bd7 Qd7 11.Bf6 gf6=+) 9...Bd7 (9...Nd3 10.cd3 a6 11.Nb5–/+) 10.Nb5=+ Bb8 11.Be2 0–0 12.Ba3 (12.Nfd4 Ne4=+) 12...Bb5 13.Bb5 Bd6 14.d3 (14.Nd4 Qc7 15.c3 Nc6 (< 15...Bh2 16.Kh1+/–) 16.Bd6 Qd6 17.Bc6 bc6=+) 14...Qb6 (14...a6 15.c3–/+) 15.Ba4 Rfc8 16.Rb1 a5 (16...Qa5 17.c4 Rd8 18.Bb4 Bb4 19.Qb3–/+) 17.Bb2 Qc7 18.c3 (18.Bf6 gf6 19.c4 dc4 20.dc4 f5–/+) 18...Na6 19.c4 dc4 20.Rc1 (20.Bf6 gf6 21.dc4 Nc5–/+) 20...Qc5 (20...Qe7!? 21.Rc4 Rc4 22.dc4 Nc5–/+) 21.Rc4=+ Qh5 22.Bf6 gf6 23.Rh4 Qd5 24.Bb3 Qc5= 25.Nd2 Qf5 26.Ne4 Be7 27.Rf4 Qb5 28.Nf6 Bf6 29.Rf6 Qd7 30.Qg4 Kh8 31.Qf4 Qc7 32.Qh4 Rg8 33.Rf3 b5 34.Qf6 Rg7 35.Rg3 Rag8 36.Rg7 Rg7= 37.Ra1 Nb4 38.d4 a4 39.d5 ed5=+ 40.Bd1 Qc6 41.Qe5 d4 42.e4= d3 43.Ba4 f6 44.Qb5 Qe4 45.g3 d2 46.Bb3 Re7 47.Rf1 Nc6 48.Qa6 Rd7 49.Rd1 Re7 50.h3 Kg7 51.Qa8 Nd4 52.Qg8 Kh6 53.Qf8 Kg6 54.Qg8 Rg7 55.Qd5 Qd3 56.g4=+ Rd7 57.Qg8 Kh6 58.Qf8 Kg5 59.Bf7 Qh3–+ 60.Qg8 Kf4 61.Qb8 Kg4 62.Be6 Ne6 63.Qg3 Qg3 64.fg3 Kg3 65.Kf1 Kf3 (66.Kg1 Ke2–+) 0–1. Pierred (2165) – Irae (2580), Rated game, 5m + 0s, 2005.

4...c6

5.c4 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.c4 e6 5.a3).

5.d4 a5+= 6.ba5 (6.b5 Bd6+=) 6...Qa5 7.Nd2 b5 (7...Bd6 8.Ngf3+=) 8.Ngf3 Qc7 (8...Bd6 9.Bd3+=) 9.Ne5 (9.Bd3 Bd6=) 9...Be7+= 10.Bd3 0–0 11.0–0 Bd6 (11...Nbd7 12.Ndf3+=) 12.Ndf3 (12.Qf3 Nbd7 13.Qg3 Bb7=) 12...Ba6 (12...Nbd7 13.Qe2+=) 13.Qe2 g6 (13...Ne4 14.Rfb1=) 14.h3 (14.Rfb1 Ne4 15.Be4 de4+=) 14...Nbd7 (14...Ne4 15.Be4 de4 16.Nd2+=) 15.Rab1 (15.a4 Rfb8=) 15...Bb7 16.Ra1 c5 (better is 16...Ra4!?+=) 17.Nd7 (17.Bb5 Rfb8+/–) 17...Nd7+= 18.Bb5 c4 (18...cd4 19.Nd4 e5 20.Nf3+=) 19.Bd7 (19.a4 Bc6+=) 19...Qd7 20.c3 (20.Rfb1 Rfb8+=) 20...Rfb8= 21.Qc2 (21.Rfb1 Ra4=) 21...Qe7 22.Qc1 (22.Rfb1 Qf6=) 22...f6 (22...Qf6 23.Qc2+=) 23.Re1 (23.Qc2 Bc6=) 23...e5+= 24.Kf1 (24.Qc2 e4 25.Nd2 Bc6+=) 24…e4 (24...e4 25.Nd2 Ra4+=). Davis,David Neville – Wijenayake,Sandaruwan, IECG, 2002.

5.Be2 c5 6.b5 Bd6 7.Nf3 Nbd7 8.0–0 e5 9.Nh4 Nb6 10.g3 (10.a4 0–0+=) 10...0–0 11.a4 Bh3 12.Re1 Be6 13.d3 Nbd7 14.Nd2 Qa5 15.Nb3 Qd8 16.Nf3 (16.Nd2!?=) 16...Qc7+= 17.Rc1 (better is 17.Ng5!?+=) 17...c4–+ 18.Nbd2? (better is 18.dc4 dc4 19.Na1–+) 18...c3 19.Ba1 cd2 20.Nd2 Qa5 21.c3 Ba3 22.Rb1 Nc5 23.c4 Bb4 24.cd5 Bd5 25.Be5 (25.Rb4 Qb4 26.Be5 Na4 27.Bf6 gf6–+) 25...Bd2 26.Rf1 Nfd7 (26...Na4?! 27.Ra1 Qb5 28.Qd2–+) 27.Bd6 Rfd8 28.d4 Na4 (better is 28...Ne4!? 29.Bf3–+) 29.Ra1 Ndb6 30.Bc7 Rdc8 (30...Bc3!? 31.Bd8 Rd8 32.Rc1–+) 31.Bb6 ab6 (31...Qb6?! 32.Ra4 Bc3 33.Bd3–+; 31...Nb6?! 32.Ra5 Ba5 33.Bf3–/+) 32.Qb1 (32.Ra4 Qa4 33.Qd2–+) 32...Nc3 33.Ra5 (33.Bg4 Nb1 34.Ra5 ba5 35.Bc8–+) 33...Ne2 (33...Nb1?! 34.Ra8 Ra8 35.Rb1–+) 0–1. mikebaldini (1655) – motto63 (1745), gameknot.com, 2014.

5.Be2 g6 6.Nf3 Bg7 7.0–0 0–0 8.d3 Nbd7 9.Nbd2 Qc7 10.h3 (10.d4 a5+=) 10...e5= 11.e4. mikebaldini – fannibaws, gameknot.com, 2015.

5.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 e6 5.a3).

5.f4 Nbd7 6.Nf3 Bd6 7.c4 dc4 8.Bc4 b5 9.Bb3 c5 10.0–0 c4 (10...cb4 11.Nd4 ba3 12.Na3=) 11.Bc2= Bb7 (11...0–0 12.d3 Qb6 13.Bd4+=) 12.Nc3 a6 13.Ne2 (13.Rc1 0–0=) 13...0–0 14.Qe1 (14.d3 Rc8=) 14...Be4=+ 15.Qb1 Bc2 16.Qc2 Be7 17.Nfd4 Qb6 18.Nc3 Nd5 19.Rf3 Nc3 20.Bc3 Bf6 21.h4 (21.d3 e5 22.Ne2 ef4 23.Nf4 cd3 24.Qd3 Bc3 25.Qc3 Rfe8=) 21...e5 (21...Rfd8 22.h5–/+) 22.Nf5 ef4 23.Rf4 Bc3 (23...Qe6 24.a4=+) 24.Qc3= Qf6 25.Nd4 Qg6 26.Rf5 h6 (26...Qh6 27.Rf4=+) 27.Raf1 (27.a4!?+=) 27...Nf6 28.Nc6 Qg3 29.Ne7 Kh7 30.Rf6 gf6 31.Nd5 Qh4?? 32.Nf6+– Kh8 33.Nh5 f6= 34.Nf6 Rf6 35.Rf6 Kg8 36.Rg6 Kf8 37.Qh8 Ke7 38.Qh7 (38...Ke8 39.Rg8#; 38.Qa8?! Qe1 39.Kh2 Qh4 40.Kg1 Qe1 41.Kh2 Qh4 42.Kg1=) 1–0. Benoit,H (2040) – Chauveau,Philippe (1740), Syre mem op Issy les Moulineaux, 1994.

5.g4 a5 6.g5 Nfd7 7.h4 (7.f4 ab4 8.ab4 Ra1 9.Ba1 A) worse is 9...Bb4 10.Bg7 Rg8 11.Bc3 Bc3 12.Nc3+= (worse is 12.dc3 e5+=); B) 9...Qe7+=) 7...ab4 8.ab4 Ra1 9.Ba1 Qb6 (9...e5 10.b5+=) 10.f4 (10.b5 e5+=) 10...Qb4–/+ 11.Nf3 Qa5 (11...b5 12.h5–/+) 12.Nc3 (12.Bc3 Qc7+=) 12...b5 13.Ne2 c5 14.Ng3 (14.h5 h6+=) 14...Nc6 (14...Bb7 15.Bg2–/+) 15.Bh3 (15.Qb1 c4–/+) 15...Qc7 (15...Qa4 16.Rh2–+) 16.Qe2 (16.h5 h6+=) 16...b4 (16...Nb4 17.d3–/+) 17.0–0 (17.h5 b3 18.cb3 Nb4–/+) 17...Rg8 (17...Qd6 18.Nh5 Rg8 19.Bg2–/+) 18.Nh2 (18.h5 Bd6–/+) 18...g6 (18...Qd6 19.e4–/+) 19.Ng4 Bg7 (19...Bb7 20.Qb5–/+) 20.Bg7+= Rg7 21.Qb5 (21.Ra1 Kf8+=) 21...Qb7 22.Qa4 Qa6 23.Qb3 Qa3 24.Qa3= ba3 25.Ra1 White fights for the Initiative 25...Ke7 26.Ra3 f5 27.gf6 Nf6 28.Ne5 Ne5 29.fe5 Ne8 30.c4+/– dc4 31.Ne4 Kd8 32.Nc5 Nc7 33.Ra7 Re7 34.Kf2 Ne8 35.Ra8 Kc7 36.Rc8?? Kc8= 37.Be6 The passed pawn on e5 will quickly become a dangerous weapon 37...Kc7 38.Bc4 Re5 39.d4 Rh5 40.Kg3 Nd6 1–0. Fullbrook,Nigel (2225) – Gentes,Kevin (2325), CAN–ch Brantford, 1999.

5.g4 h6

6.c4 dc4 7.Bc4 b5 (7...Bd6 8.Bf6 Qf6 9.Nc3 Qd8 10.d4 0–0 11.Ne4 b5) 8.Bb3 a5 9.ba5 c5 10.Qf3 Ra5 11.Bc3 Ra6.

6.c4 Nbd7+= 7.d4 (7.d3 a5 8.b5 cb5 9.cb5 Bd6 10.Nc3 Nb6 11.Bg2 e5; 7.cd5 ed5 8.h3 Bd6 9.Nf3 0–0 10.g5 hg5 11.Ng5 Qe7) 7...dc4 8.Bc4 Bd6 9.Nd2 Nb6 10.Bd3 a5 11.ba5 Ra5.

6.Be2 a5 7.b5 cb5 (7...Bd6 8.Nf3 cb5 9.Bf6 Qf6 10.Nc3 b4 11.Nb5 Qd8; 7...Bd7 8.a4 Bd6 9.Nf3 cb5 10.ab5 a4 11.c4 Ng4) 8.Bb5 Bd7 9.Nc3 e5 10.h3 Bd6 11.Rb1 Qe7.

6.Nf3 Ng4–/+ 7.Rg1 (7.Be2 Nf6 (7...Rg8 8.Rg1 Nf6 9.Ne5 Nbd7 10.d4 a5 11.b5 Qb6) 8.Nc3 Bd6 9.Nb1 Nbd7 10.Rg1 0–0 11.d4 b5) 7...Nf6 8.c4 (8.Ne5 Rg8 9.Qf3 Nbd7 10.c4 Ne5 11.Be5 Nd7) 8...dc4 (8...a5 9.b5 dc4 10.Nc3 cb5 11.Nb5 Nbd7) 9.Bc4 b5 10.Be2 Bb7 (10...a5 11.ba5 (11.Qc2 ab4) 11...Qa5 12.Ne5–/+) 11.a4+= (11.d3 a5) 11...a6 (11...Rg8+=) 12.Nc3 (12.Qb3 Rg8+=) 12...Nbd7 (12...a5 13.ba5 b4 14.Nb1–/+) 13.Na2 (13.d4 Bb4 14.Rg7 Ne4–/+) 13...Nb6 14.a5 Na4 15.Bf6 Qf6 (worse is 15...gf6 16.d4+=) 16.d4 Rd8 17.Ne5 (17.Rb1 c5! 18.bc5 Nc5–/+) 17...Bd6–+ 18.Ng4 Qh4 19.Qb1 (better is 19.Qc1 h5 20.Ne5 Be5 21.de5 Qh2 22.Rg7–+) 19...h5 20.Ne5 Be5 (20...Be5 21.de5 Qh2 22.Rg7 Qe5–+) 0–1. Lisakowski,Christof (2260) – Taulien,Hans_Juergen (2350), RS6D – A00 – Sokolsky Alt–1, 2004.

6.f4 e5 7.h3 Ne4 8.Nf3 ef4 9.ef4 Be7 10.Rg1 Bh4 11.Ke2 Qe7.

4...Nc6

5.Bb5 a5 6.ba5 Ra5 7.Nc3 –/+.

5.Bb5 Bd6 6.c4 =.

5.c4 Ne7 6.Nf3 Ne4 7.d3 Nf6 8.Be2 Ng6 9.Nbd2 Be7 10.0–0 c6 11.Rc1 Bd6 12.c5 Bc7 13.e4 Nf4 14.ed5 (14.e5 Nd7+=) 14...cd5 (14...N6d5 15.Re1= (worse is 15.Bg7 Rg8 16.Bb2 Rg2 17.Kh1 Rg6–/+)) 15.d4 Ne4 16.Ne4 de4 17.Nd2 Qh4 18.g3?? (18.Bb5 Kf8 19.h3 Nh3 20.gh3 Qg5 21.Qg4 Qd2 22.Rb1+=) 18...Nh3?? (better is 18...Qh3 19.Bf3 ef3 20.Qf3 Nd5–+) 19.Kg2 (19.Kh1 Qh6 20.Bb5 Bd7 21.Bd7 Kd7 22.Ne4 Qg6+–) 19...Qh6? (better is 19...Nf4!? 20.gf4 Bf4 21.Ne4 Qh2 22.Kf3 Bc1 23.Bc1 Qh3 24.Ng3 Bd7+/–) 20.Ne4 0–0 21.Bg4 Ng5 22.Ng5 Qg5 23.Bf3 f5 24.Qd3 f4 25.Rce1 fg3 26.fg3 Bd7 27.Bc1 Qd8 28.Be4 h6 29.Bh7 Kh8 30.Be4 Rb8?? 31.Rf8+– Qf8 32.Rf1 Qe7 33.Qf3 b6?? 34.c6 Bc6 35.Bc6 Rc8 36.b5 Bd6 37.a4 e5 38.de5 Qe5 39.Bf4 Qb2 40.Kh1 Bf4 41.Qf4 Rg8 42.Qf7 1–0. Fournier,Frederic – igor20, KasparovChess.com rated blitz game, 2002.

5.d4 Bd6 6.Nf3 Ne4 7.Nbd2 Nf2?? (Better is 7...Nd2 8.Qd2 0–0=) 8.Kf2+– e5 (8...0–0 9.c4+–) 9.de5 Ne5 (9...Be7+–) 10.Ne5 Qf6 11.Nef3 Qb2 12.Nb3 Qf6? 13.Qd5 Qa1 14.Na1 0–0 1–0. slavisa3 – kilmer48, Live Game Caissa's Web, 2004.

5.Be2 Bd6 =.

5.Nf3 Ne4 6.d3 Nf6 7.Be2 Bd6 8.Nbd2 0–0 9.0–0 e5 (9...a5 10.b5 Nb8 11.c4+=) 10.c4 (10.b5 Nb8 11.Be5 a6+/–) 10...dc4 11.Nc4 Will e5 fall? 11...Nd5 12.Nce5 Ne5 13.Ne5 Be5 14.Be5 Re8 15.Bb2 Be6 16.Bf3 c6 17.Re1 Qd6 18.Rc1 Rad8 19.d4 Rc8 20.Qd2 b5 21.Rc5 Ra8 22.Rec1 Bd7 23.e4 Nf6?? (better is 23...Qf4 24.Bc3 Re4 25.Qf4 Nf4 26.Be4 Ne2 27.Kf1 Nc1 28.Rb5 f5+–) 24.e5 Qe6 (24...Qe7 25.ef6 gf6 26.Bc6 Bc6 27.Rc6+–) 25.ef6 Qf6 26.Bc6 Bc6 27.Rc6 Qf5 28.R6c5 Qe4 29.Kf1 Re6 30.Re1 Qg4 31.Re6 Qe6 32.Qc3 h6 33.d5 Qg4 34.h3 Qd1 35.Qe1 Qd3 36.Kg1 Rd8 37.Qe5 Qd1 38.Kh2 f6 39.Qe6 Kh7 40.Qf7 Rd5 41.Rd5 Qb3 42.Rd7 Qb2 43.Qg7 1–0. Fournier,Frederic (1770) – torreta, Active, 2006.

5.f4 Ne4 6.b5 (6.Nf3 a6=) 6...Na5 (6...Ne7 7.Nf3=) 7.Nf3 c6 8.Be2 (8.Nc3 Be7=) 8...Bd6 (8...Qb6 9.a4=) 9.d3 (9.0–0 0–0=) 9...Nc5 (9...Nf6 10.a4=) 10.Nd4 (10.0–0 0–0=) 10...e5 (10...Na4 11.Bc1+=) 11.fe5 (11.Nb3 Nab3 12.cb3 ef4 13.ef4 cb5+=) 11...Be5+= 12.0–0 (12.bc6 bc6 13.0–0 Na4–/+) 12...cb5 (12...Na4 13.Bc1 c5 14.c4–/+) 13.Nd2 (13.Nc3!?=) 13...Na4–/+ 14.Qc1 Qg5 (14...Nb2!? 15.Qb2 Qg5–/+) 15.N2f3= Qe3?? (better is 15...Qe7=) 16.Qe3+– (16.Qe3 f6 17.Ne5+–) 1–0. Wall,Bill – Valjvo, chess.com, 2008.

5.f4 Be7 6.Nf3 =.

5.b5 Na5

6.a4 Nc4 7.Bc4!? dc4 8.Qe2 =.

6.a4 Nc4 7.Bd4 e5=+ 8.Bc4 ed4 (Worse is8...dc4 9.Be5 Nd7 10.Bd4–/+) 9.ed4?? (Better is 9.Bd3=+) 9...dc4–+ 10.c3 (10.Ne2 Bd6–+) 10...Be6 11.Nf3 Bd6 12.0–0 0–0 13.Qe2 (13.Re1 a6 14.ba6 Ra6–+) 13...Re8 14.Ne5 Be5 (14...a6 15.Na3 Ba3 16.Ra3 ab5 17.Rb1–+) 15.de5 Nd5 16.f4 Qe7 17.Na3 Qc5 18.Kh1 Rad8 19.Nc4 Nf4?? 20.Rf4+= Bc4 21.Rc4 Re5= 22.Rc5 Rc5?? 23.Re1 h6 24.Qf2 Rg5 25.Re7 f6 26.h4 Rgd5 27.Re2 b6 28.c4 Rc5 29.Re7 Rc4 30.Qe3 Ra4 31.Kh2 Kf8 32.Rc7 Rh4 33.Kg3 Re8 34.Qa3 Kg8 35.Kh4 Re5 36.Kg3 Re8 37.Kh2 h5 38.Kg3 h4+– 39.Kf2 h3 40.gh3 Re5+– 41.Qg3 Rf5 42.Ke3 Re5 43.Kd4 Rg5 44.Qd6 Re5 45.Qd7 Re7 46.Qe7 1–0. b4_player – Prashant_Dohe (1675), GameColony.com, 2002.

6.a4 Bd6 7.Nf3 =+.

6.Nf3 Bd6 =.

5.Bb5 Bd7

6.Bd3 Bd6 7.f4 Qe7 =.

6.d4 a5 7.c3 +=.

6.d4 Be7 7.c3 a6 8.Ba4 b5 9.Bb3 0–0. Treaclebelly – pieeater, ChessWorld.net, 2013.

6.Nf3=+ a5 7.ba5 Ra5 8.c4 =+.

6.Nf3=+ Bd6 7.0–0 a6 8.Ba4 0–0=+ 9.Bb3 Qe7 10.d3 Ng4 11.h3 Nf6 12.Nbd2 Rfe8 13.Re1 a5 14.b5 Na7 15.a4 c6 16.c4 Bb4 17.b6 Nc8=+ 18.d4 dc4–/+ 19.Bc4 Nb6 20.Bb3 Nbd5 21.Qc2 Rec8 22.Re2 c5 23.Qd3 cd4 24.Bd5 Nd5–+ 25.Qd4 Bc3 26.Bc3–/+ Nc3 (27.Ree1 b5–+) 0–1. Rocha,Katiucia – Morais,Thais, Catarinense–ch (Women), 2003.

5.c4 b6

6.b5 Na5 7.cd5 ed5 =.

6.cd5 ed5 7.Qc2 Bd7 8.Ba6 (8.Bb5 Nb8 9.Bd7 Nbd7+=) 8...Rb8 (8...Bd6 9.Bb7 Ne5 10.f4+–) 9.Nf3 (9.b5 Na5+=) 9...Be7 (9...Bd6 10.b5 Ne7 11.Bf6 gf6 12.0–0+/–) 10.Bb5 Bb4? (better is 10...Ne5! 11.Be5 Bb5 12.Qc7 Qc7 13.Bc7 Rc8+=) 11.Bc6+– Bd2 (11...Bd6+–) 12.Nbd2 (12.Qd2?! Bc6 13.0–0 Ne4+–) 12...Bc6 (12...0–0 13.Bd7 Nd7 14.0–0+–) 13.Qc6 Qd7 14.Rc1 Qc6 15.Rc6 Rb7 16.Ke2 (16.Bf6 gf6 17.e4 Rg8+–) 16...Ke7 (16...Kd7 17.Rhc1+–) 17.Bf6 gf6 18.Rhc1 Rg8 (18...Rc8 19.e4 Rg8 20.Rc7 Rc7 21.Rc7 Ke6 22.ed5 Kd5 23.Ra7+–) 19.Rc7 Rc7 20.Rc7 Kd6 21.Ra7 Rg2 (21...Rg7 22.Rb7 Kc6 23.Re7+–) 22.Rf7 (22.Rf7 b5 23.Rf6 Kc5 24.Nd4 Rf2 25.Kf2 b4 26.Rc6#) 1–0. Marinelli,Giorgio – Spadavecchia,Giovanni, Asigc CEM01, 1997.

6.cd5 Nd5 7.b5 Nce7 8.e4 +=.

6.Nf3 Bd6 7.d4 0–0 8.c5 Be7 9.Bb5 Bd7 10.0–0 bc5 11.bc5 Rb8 12.Qe2 Rb5–/+ 13.Qb5 Ne4?? 14.Qd3+– e5 15.Ne5 Ne5+/– 16.de5 Qb8 17.Bc3 Qb7 18.Bd4+– Bb5 19.Qb3 Qc6 20.Rc1 Bh4 21.g3 Bc4 22.Qc2 Be7 23.Nc3 Nc3 24.Qc3 Rd8 25.Rab1 Be2 26.Kg2 Qa6 27.a4 Bd3 28.Rb2 Bc4 29.Qb4 (29...Bd3 30.Ra1+–) 1–0. PeterRs – Whiterose, ChessWorld.net, 2006.

5.c4 dc4

6.Bc4 Bd6 7.Nf3 0–0 8.0–0 h6 9.Nc3 e5 10.Nd5 Nd5 11.Bd5 Bg4 12.h3 Bh5 13.d4 ed4 14.ed4 Qf6 15.Be4 Rab8 16.Qe2 Rfe8 17.d5 Bf3 18.Bf6 Be2 19.Rfe1 gf6 20.Re2 Nd4 21.Rd2 Re4 22.f3 Ne2 23.Kf1 Ng3 24.Kg1 Re5 25.Kh2 Rg5 26.Rad1 Ne4 27.Kg1 Nd2 28.Rd2 Re8 29.a4 Bg3 30.Rd1 Rd5 31.Rb1 Rde5 0–1. Nautiluschess – contrary, ICS blitz, 2001.

6.Bc4 Be7 7.Nf3 Bd7 8.0–0 0–0 9.Nc3 a6 10.d4 b5 11.Bd3 a5 12.ba5 (12.Nb5?! ab4 13.Qd2 Rb8+=) 12...Ra5 13.Bb5 Nd4? (better is 13...Qa8+/–) 14.Nd4+– (14.ed4?! Bb5 15.Nb5 Rb5=) 14...Bb5 15.Ncb5 1–0. Fournier,Frederic (1875) – Monti12 (1750), Active (5/0), 2005.

5.Nf3 a5

6.b5 Ne7 7.c4 dc4 8.Bc4 c6 9.0–0 cb5 10.Bb5 Bd7 11.Nc3 Bb5 12.Nb5 Qb6 (12...Ned5 13.Bf6 gf6 14.Rc1+/–) 13.Qa4+/– Nc6 14.Nfd4 (14.Be5 Ke7 15.Bd6 Kd7 16.Rfb1+–) 14...Nd4?? (better is 14...Rd8+=) 15.Bd4+– (15.ed4?! Kd8=; 15.Nd4?! Nd7 16.Rab1 Rc8+/–) 15...Qc6 (15...Bc5 16.Bf6 gf6+–) 16.Nc7 (16.Rac1!? Rd8+–) 16...Kd7 17.Qc6 Kc6 18.Rfc1 Kd7 19.Na8 Ne4 (19...Nd5 20.Rcb1 Ba3 21.Ra3 Ra8 22.Rb7 Kd6 23.f4+–) 20.d3 Nd2 (20...Bc5 21.de4 Bd4 22.Rc7 Kd6 23.ed4 Ra8 24.Rf7+–) 21.Rc7 Kd6 22.f4 Nb3 (22...e5 23.fe5 Ke6 24.Rb7 a4+–) 23.Be5 Kd5 24.Nb6 1–0. Fournier,Frederic – Zavattiero,Romain, Match Senlis FRA, 2007.

6.b5 Na7 7.c4 c6 8.bc6 Nc6 9.cd5 Qd5 (9...Nd5 10.Bb5=) 10.Nc3 Qd7 11.Bb5 Be7 12.0–0 0–0 13.d4 Qc7 14.a4 Na7 15.Qe2 Nb5 16.Nb5 Qb6 17.Rfc1 Bd7 18.Nc3 Rac8 19.Ne5 Bc6 20.Nc6 (20.Rab1 Qd8+=) 20...Rc6= 21.Rab1 Qc7 22.Nb5 Rc1 23.Rc1 Qb6 24.Qc4 Bb4 25.Ba3 Ba3 26.Na3 Qb2 27.Nb5 Ne4 (27...Nd5 28.Nd6+=) 28.Qc2+/– Qb4?? (better is 28...Qc2 29.Rc2 f5+/–) 29.Qe4 1–0. Fournier,Frederic (1685) – vini (1640), ChessOK.com, 2013.

5.Nf3 a6

6.c4 b5 7.cb5+/– ab5 8.Bb5 Bd7 9.Qc2 Na7 10.Bd7 Nd7 11.Nc3 c5 12.b5 Nb6 13.0–0 Bd6 14.a4 d4 (better is 14...Nc4+–) 15.Ne4 e5 (15...Nd5 16.Nd6 Qd6 17.Rfc1+–) 16.Ba3 (16.Nc5?! d3 17.Qd3 Bc5 18.Qd8 Rd8 19.Be5 Nc4 20.Bg7 Rg8+–) 16...Rc8 17.ed4 0–0 (17...ed4 18.a5 Nb5 19.Nd6 Qd6 20.Qe4 Qe7 21.Qe7 Ke7 22.ab6 Na3 23.Ra3 Rb8 24.Ra7 Kf6+–) 18.de5 Be7 19.Bc5 Bc5 20.Nc5 Qd5 21.Rfc1 Nd7 22.d4 Rc7 (22...Rfd8 23.Ng5 Nc5 24.dc5+–) 23.Ng5 g6 24.Nd7 Qg2 (24...Rd7 25.Ne4 f5+–) 25.Kg2 Rc2 26.Rc2 Rd8 27.Nf6 Kg7 28.Rc7 Nc8 29.Rf7 Kh6 30.Ra3 Kg5 (30...Rd4 31.Rh3 Rh4 32.f4 Rh3 33.Rh7 mate) 31.Nh7 Kg4 32.Rh3 Rd4 33.f3 mate 1–0. Valverde,Mario (1910) – Tortoza,Carlos, CiF–11er/0036, 2011. (=1.a3 Nf6 2.b4 d5 3.Bb2 e6 4.Nf3 Nc6 5.e3)

6.c4 dc4 7.Bc4 Bd7 8.Nc3 Bd6 9.d4 0–0 10.0–0 e5 11.de5 Be5 12.Ne5 Ne5 13.Be2 Be6 14.Qd8 Rad8 15.Rfd1 (15.Nb5 ab5 16.Be5 c6+=) 15...Rd1 16.Rd1 Bc4 17.Bc4 Nc4 18.Bc1 g6 19.Nd5 (19.e4 Re8 20.Rd4 b5+=) 19...Nd5= 20.Rd5 c6 21.Rd4 Ne5 (21...b5 22.e4=) 22.f4 Ng4 23.h3 Nf6 24.Kf2 Nd5 25.Kf3 (25.e4 Nc3+/–) 25...Kg7 26.g4 Kf6 27.e4+/– Ne7? 28.Rd7+– Re8 29.Bb2 Ke6 30.Rb7 Rd8 31.Ke3 Kd6 32.Bf6 Re8 33.Be7 Re7 34.Re7 Ke7 35.Kd4 Kd6 36.e5 Ke6 37.Kc5 f6 38.ef6 Kf6 39.Kc6 Ke6 40.Kb6 Kd5 41.Ka6 Kc4 42.b5 Kc5 43.b6 Kc6 44.b7 Kc7 45.Ka7 h5 46.b8Q Kc6 47.Qe5 hg4 48.hg4 g5 49.f5 (49.f5 Kd7 50.Kb7 Kd8 51.f6 Kd7 52.Qe7) 1–0. Fournier,Frederic (1615) – juanex, Active, 2007.

6.c4 Be7 7.Nc3 dc4 8.Bc4 0–0 9.0–0 b5 10.Be2 Bb7 11.d4 Qd7 12.Rc1 Bd6 13.h3 Ne7 (13...Rfd8 14.Qc2=) 14.Qc2 Rac8 15.Nd2 Ng6 16.Bf3 Bf3 17.Nf3 c6 18.Ne4 Ne4 19.Qe4 Bb8 20.Rc2 Ne7 21.Rfc1 Qd6 22.g3 (22.Ng5 Qh2 23.Kf1 Nf5+/–) 22...f6 23.Kg2 h6 24.Nd2 Nd5 25.Nb3 Ba7 26.Na5 f5 27.Qe5 Qe5+= 28.de5 Bb8? 29.Nc6 g5 30.Nb8 Rb8 31.Rc6 f4 32.ef4 gf4 33.Re6 fg3 34.fg3 Ne3 35.Kg1 Rf3 36.Rf6 Rg3? 37.Kf2 Rg2 38.Ke3 Rb2 39.Rg1 Kh7 40.Rf7 Kh8 41.Rgg7 Rb3 42.Ke4 Rh3?? 43.Rh7 Kg8 44.Rfg7 Kf8 45.Ra7 Ra3 46.Rh8 1–0. Fournier,Frederic (1635) – lucky64 (1735), Active, 2007.

6.Be2 Bd6 7.c4 b6 (7...dc4 8.Bc4 b5 9.Be2=) 8.Nd4 (8.cd5 ed5 9.0–0 Bd7=) 8...Bb7 9.Nc6 Bc6 10.Qc2 Ne4 (better is 10...dc4!? 11.0–0 a5+=) 11.d3 Nf6 12.0–0 (better is 12.cd5!? Bb7 13.e4+/–) 12...dc4+= 13.dc4 Be4 14.Qc3 c5 15.Nd2 Bb7 16.Nf3 Qc7 17.h3 a5 18.b5 0–0–0 19.Ne5?? (better is 19.Rad1=) 19...Ne4–+ 20.Qc2 Be5 21.Be5 Qe5 22.f4 (22.Bd3 Rd7–+) 22...Qf6 23.Bf3 Rd2 24.Qc1 Rhd8 25.Qb1 Qg6 26.g4 (26.Rd1 Qg3 27.Rd2 Rd2–+) 26...Nc3 (better is 26...Qh6 27.Be4 Qh3 28.Bb7 Kb7 29.Qe4 Ka7 30.Qa8 Ka8 31.Rf2 Rd1 32.Rf1 R8d2 33.Rad1 Qg2) 27.Qg6 hg6 28.Bb7 Kb7 29.f5 (29.Rf2 R2d3 30.f5 Nd1–+) 29...ef5 30.gf5 gf5 31.Rf5 Ne2 (31...Ne2 32.Kg2 Nd4 33.Rf2 Nc2–+) 0–1. mikebaldini (1670) – ahmadrz (1670), gameknot.com, 2015.

6.Be2 Ne4 7.d3 Nd6 8.c4 f5 (8...Be7!?+=) 9.0–0+/– h6 10.Nc3 dc4 11.dc4 Bd7 12.b5 Ne7 13.Ne5 b6?? (better is 13...Rg8+/–) 14.Bh5+– g6 15.Ng6 Ng6 16.Bg6 Nf7 17.Qh5 Qe7 18.Rfd1 Bg7 19.Bf7 Qf7 20.Qf7 Kf7 21.Rd7 Kg6 22.Rg7! Kg7 23.Nd5 Kf7 24.Nc7 Rad8 (24...Rac8 25.Bh8 Rc7 26.Rb1 ab5 27.cb5+–) 25.Bh8 Rh8 (25...ab5 26.Be5 bc4+–) 26.ba6 Ke7 27.Rd1 Rd8 28.Rd8 Kd8 29.a7 (29.a7 Kc7 30.a8Q+–) 1–0. marekt – Papa Lazarou, ChessWorld.net, 2012. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nc6 4.a3 Nf6 5.e3 a6)

5.Nf3 b6

6.Bb5 Bb7 7.c4 (7.Ne5!? Qd6 8.Qf3+=) 7...a6= 8.Ba4 Bd6 (8...dc4!? 9.b5 ab5 10.Bb5 Bd6+=) 9.cd5 ed5 10.Nc3 0–0 11.0–0 b5 12.Bb3 Ne5 13.Ne5 Be5 14.d4 Bd6 15.Qe2 Ne4 16.Ne4 de4 17.Rac1 Qh4 18.g3 Qh3 19.f4 (better is 19.d5=) 19...Bc8?? (better is 19...ef3!? 20.Rf3 Bf3 21.Qf3 Ra7+=) 20.Qg2 (20.Bd5 Bg4 21.Qc2 Ra7+/–) 20...Qh5 (20...Qf5=) 21.Qf2 (better is 21.Qe4!? Bf5 22.Qc6+/–) 21...Bg4 22.Bd5?? (better is 22.Qc2=) 22...Qd5–+ 23.Rc3 Qh5 24.Rfc1 Bf3 25.Rc6 Qh3 26.d5 Bh5 27.Be5 Be5 28.fe5 Qg4 (28...Rfe8!? 29.Qf4 Bf3 30.R1c2–+) 29.Rc7 Qf3 30.Qf3–/+ Bf3 31.d6 Bg4 32.Rb7 Rac8 33.Rcc7 Rc7 34.Rc7 Rc8 35.Kg2?? Rc7–+ 36.dc7 Kf8 37.h3 Be6 38.g4 Ke7 39.Kg3 Kd7 40.c8Q Kc8 41.Kf4 Bd5 42.h4 Kd7 43.g5 Ke6 44.h5 h6 45.gh6 gh6 (45...gh6 46.Kg3 Ke5–+) 0–1. Fournier,Frederic (1785) – adrinolink, unrated blitz game (2/12), 2002.

6.d4 a5 7.b5 Na7 8.Nbd2 Bd7 9.c4 dc4 10.Bc4 (10.a4 c6 11.bc6 Bc6 12.Bc4 Rc8=) 10...Bb5+= 11.Qb3 Bc4 12.Qc4 Bd6 13.0–0 0–0 14.Rac1 c5 (14...b5!? 15.Qc2 b4+=) 15.dc5= Bc5 (worse is 15...bc5 16.Bf6 Qf6 17.Ne4+=) 16.Nb3 Rc8 (16...Be7!?+=) 17.Qa6+= Rc7 18.Nc5 bc5 19.Qa5 (19.Be5 Rd7 20.Rc5 Ne4 21.Ra5 Nc8+/–) 19...Qd6?? (better is 19...Ne4+=) 20.Be5+– (20.Be5 Qc6 21.Bc7+–) 1–0. Fournier,Frederic (1825) – BLACKMEN, Club Owl21 Owl21.com, 2008.

5.Nf3 Bd6

6.Bb5 Bd7 7.d4 e5?? (better is 7...a6 8.Bd3 b5=) 8.Bc6+– Bc6 (8...e4 9.Bd7 (9.Bb7?! Rb8 10.Bd5 Nd5+–) 9...Nd7 10.Nfd2+–) 9.de5 (9.Ne5?! Bb5+=) 9...Ng4 (9...Bb4 10.ab4 Ne4 11.Qd4+–) 10.ed6 Qd6 11.g3 (11.Bg7 Rg8 12.Bd4 Nf6+–) 11...0–0–0 (11...0–0 12.Qd4 Nf6 13.Nbd2+–) 12.Bg7 Rhg8 13.Bd4 Kb8 14.h3 (14.Qd3 h6+–) 14...Nf6 (14...Nf2 15.Kf2 Qg3 16.Ke2 Bb5 17.Kd2 Qf2 18.Kc1+–) 15.Ne5 Qe6 16.Nc6 Qc6 17.Nd2 Ne4 18.Ne4 de4 19.Qe2 (19.Qh5 Rd4 20.ed4 Qc3 21.Ke2 Qc4 22.Ke3 Qc3 23.Ke4 Re8 24.Qe5 Qc2 25.Ke3 Re5 26.de5 Qc3 27.Ke4 Qc2 28.Kf3 Qc6 29.Kf4 Qh6 30.Ke4 Qc6 31.Kd4 Qb6 32.Kd3 Qf2=) 19...f5?? (better is 19...Rd4 20.0–0 Rd7+=) 20.b5+– Qd6 21.c4 Rg6 22.c5 Qd5 23.0–0 (23.Qh5 Qd7+–) 23...h6 (23...f4 24.Kh2 Rdg8 25.Rg1+– (25.gf4 Rg2 26.Kh1 Qf5 27.Qg4 R2g4 28.hg4 Rg4 29.Bf6 Qh5 30.Bh4 Qh4)) 24.a4 (24.Rfd1 Qg8+–) 24...h5 (24...f4 25.Kh2 Rdg8 26.Rg1 (26.gf4 Rg2 27.Kh1 Qf5 28.Qg4 R2g4 29.hg4 Rg4 30.Bf6 Qh5 31.Bh4 Qh4) 26...fg3 27.fg3+–) 25.Qh5 Rdg8 26.Rad1 (26.Qh4 Qe6 27.Qf4 Rh6+–) 26...b6 (26...Qe6 27.Qh4 Rh6 28.Qf4 Rh3 29.b6+–) 27.cb6 cb6 28.Bb6! Qc4 (28...ab6 29.Rd5 Discovered attack; 28...Rb6 29.Rd5 Discovered attack) 29.Rd8 Rd8 30.Bd8 Kb7 (30...Qe6+–) 31.Qg6 Qa4 32.Qf5 (32.Qc6 Kb8 33.Qc7 Ka8 34.Qc8) 32...Qa5 33.Ba5 Black resigned 1–0. Uplander – pieeater, ChessWorld.net, 2012.

6.c4 0–0 7.c5 Be7 8.d4 Ne4 9.Nc3 Nc3 10.Bc3 b6 11.Bd3 Bb7 12.0–0 f6 13.Qc2 h6 14.Rac1 e5 15.de5 Ne5 16.Ne5 fe5 17.Bh7 Kh8 18.Be5 Bf6 19.Bf6 Qf6 20.Bd3 c6 21.Be2 Rad8 22.Bf3 d4 23.ed4 Qd4 24.Rcd1 Qf6 25.Rd8 Rd8 26.Rd1 Rd1 27.Qd1 Qb2? 28.Qd8 Kh7 29.Be4 g6 30.Qd7 Qg7 31.Qg7 Kg7 32.cb6 ab6 33.f3 Kf6 34.Kf2 g5 35.Ke3 Ke5 36.g3 b5 37.h3 h5 38.Bc2 Bc8 39.h4 gh4 40.gh4 Be6 41.Be4 Bd7 42.f4 Kf6? 43.Kd4 Bf5 44.Bc6 Bg4 45.Bb5 Kf5 46.Bd7 Kf4 47.Bc6 Kg3 48.Be8 Kh4 49.Bh5 Kh5 50.b5 Bf3 51.a4 Kg6 52.a5 Kf6 53.Kc5 Ke7 54.Kb6 Kd8?? 55.Ka7 Kc7 56.b6 Kc8 57.a6 1–0. Fournier,Frederic – marc4ever, Active, 2007.

6.c4 0–0 7.c5 Be7 8.Be2 b6 9.d4 bc5 10.dc5 Re8 11.0–0 Ne4 12.Nbd2 Bf6 13.Bf6 Nf6 14.Qc2 (14.Qa4 Ne7+/–) 14...e5 15.Qb2 e4 16.Nd4 Nd4 17.Qd4 Bg4 18.Bg4 Ng4 19.Rad1 Qh4 20.h3 Nf6 21.Nb3 c6 22.Na5 Rac8 23.Nb7 Re6 24.Nd6 Rc7 25.Rfe1 (25.b5 cb5 26.Nb5 Rd7+=) 25...Qh5 (25...Ne8 26.Ne8 Re8 27.Rb1=) 26.Qb2 (26.b5 cb5 27.Nb5 Rd7+/–) 26...Re5 27.Qe2 Qh6 28.f4 Re6 29.Nf5 Qg6= 30.Nd6 Qh6 31.Qa6 Nh5?? 32.Qa5?? Rce7?? 33.Qd8+– Re8 34.Ne8 g6 35.Nf6 Kg7 36.Nh5 Qh5+– 37.Qg5 Qg5 38.fg5 Re5 39.h4 Re6 40.Rf1 Re7 41.Rf6 h6 42.Rc6 hg5 43.hg5 Re5 44.Rd6 Rg5 45.R1d5 Rd5 46.Rd5 Kf6 47.Kf2 Ke6 48.Rd4 Ke5 49.c6 Ke6 50.c7 Ke5 51.c8Q Kf6 52.Qd8 Kf5 53.Kg3 f6 54.Rd5 Ke6 55.Qd7 1–0. Fournier,Frederic (1790) – Gabs (1650), Active (5/0), 2005.

6.c4 0–0 7.Be2 Bd7 (7...dc4 8.Bc4 e5 9.d3=) 8.0–0 Qb8 (8...dc4 9.Bc4 e5 10.d4 ed4 11.Nd4=) 9.Nc3 (9.Bf6!? gf6 10.c5+/–) 9...a5 10.c5 ab4 11.ab4 Be7 12.b5 Ra1 13.Qa1 Nb4 14.d4 Ne4? (better is 14...b6 15.c6 Be8+/–) 15.Qa4 Nc3 16.Bc3 Na6 17.Ne5 Be8 18.c6 f6 19.Nd3 (19.ba6?! fe5 20.ab7 Qb7 21.cb7 Ba4 22.de5 Rb8+–) 19...e5? (19...Qd8 20.ba6 Bc6 21.Qa5 ba6 22.Qa6+–) 20.ba6 (better is 20.cb7!? ed4 21.Bd4 Qb7 22.ba6 Qa8+–) 20...Bc6 21.Qa5 b6 22.Qa2 e4 23.Nb4 Bb4 24.Bb4 Rd8 25.Rc1 Qa8 26.Qc2 Bd7 27.Qc7 Rc8+/– 28.Qd7 Rc1 29.Bf1 Qc6?? 30.Qc6+– Rc6 31.a7 Rc8 32.Bd6 Ra8 33.Bb8 Kf8 34.Bb5 h6 35.Bc6 Ra7 36.Ba7 b5 37.Bb5 1–0. Fournier,Frederic (1990) – COMP Sensor Chess, Match France (FRA), 2003.

6.c4 a6 7.c5+= Be7 8.d3 0–0 9.Be2 Re8 10.Nbd2 Bf8 11.0–0 e5 12.Qc2 Bg4 13.Rfe1 h6 14.h3 Bh5 15.Rad1 Bg6 Black intends e4 16.Qb3 Bh7 17.Nh2 Rb8 18.Ng4 Ng4 19.Bg4 e4? (better is 19...d4+=) 20.de4+– Be4 (20...Ne5 21.Be2+– (21.ed5?! Nd3+/–; 21.Qd5?! Nd3+=)) 21.Ne4 Re4 22.Bf3 Qg5? 23.Rd5 Qg6 24.Be4 Qe4 25.Red1 Qg6 26.Qd3 Qe6 27.Qf5 Qe8 28.Rd7 Rc8 29.Qf4 Ne7 30.Rc7 Rc7 31.Qc7 Qa4 32.Qd7 Qc2 33.Qd2 Qf5 34.Qd7 Qg6?? 35.Qg4 Qc2 36.Be5 f5 37.Qd4 Nc6 38.Qd5 Kh8 39.Bd6 Bd6 40.cd6 Nd8 41.d7 b5 42.Qd6 Kh7 43.Rd2 Qb1 44.Kh2 1–0. Fournier,Frederic (2000) – reusman (2015), Echecs21, 2003.

6.c4 Ne7?? 7.c5 Ne4 (7...e5+–) 8.cd6 Qd6 (8...cd6 9.Bg7 Rg8 10.Bb2+–) 9.Nc3 (better is 9.Bg7!? Rg8 10.Be5 Qd8+–) 9...Nc3 10.Bc3 Bd7 11.Be2 f6 12.0–0 Nc6 13.d4 e5 14.de5 fe5 15.b5 Ne7 16.Be5 Qh6 17.Bc7 0–0 18.b6! a6 19.Qd4 Rae8 20.Qh4 Qg6 21.Ne5 Qe6 22.Nd7 Nf5 23.Qh3 Qd7 24.Bd3 d4 25.ed4 Qd5 26.Rac1 Rf6 27.Bc4 Qc4 28.Rc4 Kh8 29.Rc5 Nd4 30.Qd7 Ne2 31.Kh1 Ng3 32.hg3 Rh6 33.Kg1 Rg8 34.Bf4 Rg6 35.Qb7 h6 36.Rc7 Kh7 37.Qa6 h5 38.Qd3 h4 39.Rc6 hg3 40.Qg6 Kh8 41.Qh5 1–0. Fournier,Frederic – NAUTILOS, Active, 2009.

6.d4 0–0 7.c4 e5?? (better is 7...dc4!? 8.Bc4 Qd7=) 8.c5?? (better is 8.de5 Ne5 9.Be5 Be5 10.Ne5+–) 8...Be7 9.de5 Ne4 10.Nbd2 Bg4 11.Be2 b6 12.cb6 ab6 13.0–0 Bg5 (13...Nb8 14.Qc2 Nd2 15.Qd2+/–) 14.h3 Bh5 (14...Bf3 15.Bf3 (15.gf3?! Nf2 16.Kf2 Bh4 17.Kg1 Qg5 18.Kh1 Qg3=) 15...Nd2 16.Qd2+–) 15.Qc2 Na7 16.Ne4 de4 17.Nd4 Bg6 18.Rfd1 Qe7 19.Nc6 Qe6 20.Na7 Ra7 21.Rac1 Rc8? 22.Bc4 Qe7 23.Be2 Kh8?? 24.Bg4 f5?? 25.ef6 gf6 26.Bc8 1–0. Fournier,Frederic – austincollins, Active, 2009.

6.Be2 0–0 7.0–0 e5 8.d3 e4 9.de4 de4 10.Ng5 (better is 10.Nd4!?=) 10...h6–/+ 11.b5 Ne5 (worse is 11...hg5 12.bc6 bc6 13.Nd2=) 12.f4 ef3 (12...hg5? 13.fe5 (worse is 13.Be5 Bc5+=) 13...Bc5 14.ef6 Be3 15.Kh1 gf6 16.Qe1+–) 13.Nf3 Neg4 14.Qd3 Qe7 15.Bf6 Qf6 16.Nc3 Bf5 17.e4 (17.Qd4 Rae8 18.Qf6 Nf6–/+) 17...Bg6 18.Qd2 (18.Rad1!?–/+) 18...Rad8 19.Bd3 Bf4 (19...Bc5!? 20.Kh1 Nf2 21.Rf2 Bf2 22.e5–/+) 20.Qe1–/+ Qc3?? (better is 20...Be3 21.Kh1 Bf2–/+) 21.Qc3+– Ne3 (21...Be3 22.Kh1+–) 22.Rf2 (22.Rfe1!? Ng4+–) 22...Ng4 23.Re2 White plans e5 23...Be3 (23...Rfe8 24.Rf1+–) 24.Kf1 Bb6 25.h3 (25.Rae1!? f6+–) 25...Nf6 (25...Ne3 26.Ke1 Rfe8 27.e5 Bd3 28.cd3+–) 26.e5 (26.e5 Nd5 27.Qb3 Bd3 28.cd3+–) 1–0. Wall,Bill – Zkmool, chess.com, 2009.

6.Be2 0–0 7.0–0 e5 8.d3 Bg4 9.Nbd2 d4 10.e4 (better is 10.b5!? Na5 11.ed4 ed4 12.Nd4 Be2 13.Ne2+/–) 10...a5 11.b5 Ne7 (11...Na7!? 12.Nd4 ed4 13.Bg4 Nb5=) 12.Nd4+= Be2 13.Ne2 Qd7 14.Nf3 Ng6 15.c4 Rfd8 16.Qc2 Qe6 17.Rad1 (17.c5 Bf8+/–) 17...Bc5 18.d4 (18.Ng3!?+/–) 18...ed4+= 19.Ned4 Qg4 (19...Qe4 20.Rfe1 Qc2 21.Nc2 Rd1 22.Rd1=) 20.h3 (20.Rfe1!? Nf4 21.g3 Nh3 22.Kf1 Bd4 23.Nd4+=) 20...Qd7?? (better is 20...Qe4 21.Qe4 Ne4=) 21.Nf5 (21.Nf5 Qe6 22.e5+/–) 1–0. Fournier,Frederic (1905) – sicotropicos (1830), Echecs21, 2003.

6.Be2 0–0 7.0–0 Re8 8.c4 1–0. Fournier,Frederic (2450) – Yogodo, echecsemail.com, 2010.

6.c4 dc4

7.Bc4 a6 8.0–0 0–0 9.Nc3 b5 10.Be2 Bb7 11.d4 Ne7 12.Rc1 Ne4 13.Ne4 Be4 14.Bd3 Bb7 (14...Bd3 15.Qd3 a5 16.Qb5 ab4 17.ab4+=) 15.Qc2 (15.Ng5 h6 16.Ne4 Be4 17.Be4 Nd5+=) 15...g6 (15...Bf3 16.gf3 (worse is 16.Bh7 Kh8–+) 16...f5 17.f4=) 16.Be4 (16.e4!? Bf4 17.Rce1+=) 16...Be4= 17.Qe4 Nf5 (17...a5 18.ba5 Ra5 19.Qd3=) 18.h3 a5 19.ba5 Ra5 20.Qc2 Nh4 21.Nh4 Qh4 22.Qc3 Raa8 23.d5 e5 24.f4 f6 25.fe5 Be5 26.Qb3 Bb2 27.Qb2 Qg5 28.Qb3 Rad8 29.d6+– Kh8 30.dc7 Rd2 31.Rf2 Rf2 32.Kf2 Rc8 33.Qd3 Qe5 34.Qd8 Rd8 35.cd8Q Kg7 36.Rc7 Kh6 37.Qe7 Qb2 38.Kg1 Kg5 39.Rc5 Kh6 40.Qf8 1–0. Fournier,Frederic (1715) – jhobb (1730), Active (4/2), 2004.

7.Bc4 a6 8.0–0 b5 9.Be2 Bb7 10.Nc3 0–0 11.d4 Ne7 12.Rc1 Ned5 13.Nd5 Nd5 14.Ne5 Be5 15.de5 Qg5 16.Bf3 c6 (16...Rad8 17.Qb3=) 17.Bd4 h6 (17...a5 18.Qd2+=) 18.g3 Rad8 19.Be4 g6 (better is 19...Rd7!?+/–) 20.f4+– Qh5 21.Bf3 Qf5?? (21...Ne3 22.Qe2 Nf1 23.Bh5 Rd4 24.Rf1 gh5 25.Qh5 Rd2+–) 22.e4 Qh3 23.ed5 Rd5 24.Bg4 Rd4 25.Bh3 Rd1 26.Rfd1 Kg7 (26...g5 27.Rd7 Ba8 28.fg5 hg5 29.Rf1+–) 27.Rd7 Bc8 28.Rc7 g5 (28...Rd8 29.R1c6 Rd1 30.Kf2 Rd2 31.Kf3 Rd3 32.Ke4+–) 29.R1c6 Kg6 30.Rc8 (30.Rc8 Kg7 31.Rf8 Kf8 32.Ra6 gf4 33.gf4+–) 1–0. Fournier,Frederic (2155) – Saludo,Jack (1750), chess.com, 2013.

7.Bc4 a6 8.d4 =.

7.Bc4 Bd7 8.0–0 Qe7 9.Qc2 0–0–0 (9...a6 10.Nc3=) 10.d3 h6 11.Nbd2 g5 (11...e5!?+/–) 12.b5+– g4? (better is 12...Na5+–) 13.bc6 Bc6 14.Nd4 Qd7 (14...Bd7+–) 15.Nc6 Qc6 16.Bf6 h5 17.Bh8 Rh8 18.Rfc1 Qe8 19.Ne4 Be5 (19...Qe7 20.Rcb1 Be5 21.d4+–) 20.Rab1 (20.d4 Bh2 21.Kh2 Qd8+–) 20...h4 (20...Qc6 21.Rb5 Bd6 22.Qb2 Bh2 23.Kh2+–) 21.d4 g3 22.de5 gf2 23.Kf2 Qg8 24.Be6! 1–0. Subedei – pieeater, ChessWorld.net, 2013. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.a3 Nc6 5.e3 Bd6 6.c4 dc4)

7.Bc4 Ne4 8.d3 Ng5 9.Nbd2 Nf3= 10.Nf3 0–0 11.0–0 Re8 12.Qc2 e5 13.Bb5 f6 14.Bc6 bc6 15.Qc6 Bd7 16.Qc3 e4 17.de4 Re4 18.Ng5 Re5?? 19.Qc4 Be6 20.Ne6 Qd7 21.Be5 Qe7 22.Bd6 Qf7 23.Bc7 Rc8 24.Rac1 h6 25.Rfd1 Kh7 26.Ng5! (26...hg5 27.Qf7 Rf8 28.Qf8 Kh6 29.Qh8 Kg6 30.g4 Kf7 31.Rd7 Ke6 32.Qe8) 1–0. wlittle (1965) – plalor, net–chess.com, 2002.

7.Bc4 Ne5?? 8.Be2 (better is 8.Be5 Bd7 9.d4+–) 8...Nf3= 9.Bf3 c6 10.Nc3 e5 11.d4 ed4 (11...Bf5 12.Nb5 e4 13.Nd6 Qd6 14.Be2=) 12.Qd4+= Ng4?? (better is 12...Qe7+=) 13.0–0 (better is 13.Bg4 Be7 14.Qd8 Kd8+–) 13...0–0 14.h3?? Ne5+= 15.Be2 Qf6?? 16.Ne4+– Qg6 17.Nd6 f6 18.Kh1 Be6 19.f4 Bd5 20.Bf3 Nf3+/– 21.gf3 Qg3 22.e4 Qh3 23.Kg1 Qg3 24.Kh1 Qh4?? 25.Kg2+– Qf4 26.ed5 Qd6 27.dc6 Qc6 28.Rac1 Qe8 29.Rg1 Qe2 30.Qf2 Qe5?? 31.Kh1 Qh5= 32.Kg2 Qg5 33.Qg3+– Qd2 34.Qf2 Qg5 35.Kf1 Rae8?? 36.Rg5+– fg5 37.Re1 Re1 38.Ke1 Re8 39.Kf1 h5 40.Qd4 Re7 41.Qd8 Kf7 42.Qd5 Re6 43.Qg5 Rg6 44.Qh5 b5 45.Qb5 Rg3 46.Kf2 Rh3 47.Qf5 1–0. Fournier,Frederic (1700) – forza2012, chessOK.com, 2013.

7.Bc4 Qe7 8.0–0 Bd7 9.d4 Ne4 10.Nbd2 Nd2 11.Qd2 Nd8 12.Qc3 c6 13.Rac1 b5 14.Bd3 Bc7 15.Bb5 a6? (better is 15...Bh2 16.Kh2 cb5+/–) 16.Bd3+– Qd6 17.g3 Bc8 18.Ne5 f6 19.Nc6 Bb7 20.Nd8 Rd8?? (20...Kd8 21.Rc2 Rc8+–) 21.Qc7 Qd5 22.e4 Qd7 23.Qd7 Rd7 24.Rc5 0–0 25.Rfc1 Rfd8 26.Rc7 Rc7 27.Rc7 Ba8 28.Ba6 Be4 29.Rc8 Rc8 30.Bc8 Kf7 31.b5 Ke7 32.b6 Kd8 33.b7 Kc7 34.a4 1–0. Fournier,Frederic (1805) – mio1976 (1635), Active (5/0), 2005.

7.Bc4 Ne7 8.d4 Ng6 9.Nbd2 c6 10.0–0 0–0 11.Rc1 Qc7 12.h3 Ne7 13.Bd3 Ned5 14.Ne4 (14.Nc4!? Be7 15.Nfe5+/–) 14...Ne4+= 15.Be4 f5 16.Bd5 (16.Bd3 a5 17.b5 Qb6+=) 16...ed5= 17.Qd3 f4 18.ef4 Bf4 19.Rce1 Bf5 20.Qb3 Be4?? (20...Bd6 21.Re3+=) 21.Ne5?? (21.Re4 Qf7 22.Ne5 Qf5+–) 21...Bh6?? (21...Kh8 22.b5+=) 22.f3 (better is 22.Re4 a5 23.Bc1 ab4 24.Bh6 Ra3 25.Qb4 de4 26.Qa3 gh6 27.Qg3 Qg7 28.Qg7 Kg7 29.Rb1+–) 22...Bf5= 23.Bc1 Bc1 24.Rc1 Qd6 25.Rfe1 Rae8 26.Re3 Qe6 27.Ng4 Qg6= 28.Re8 Re8+= 29.Qc3 Qg5 30.Re1 Re1 31.Qe1 Kf8 32.Qe3 Qe3 33.Ne3 Bd3 34.Kf2 Ke7 35.Ng4 Ke6 36.Ne5 Kf6?? 37.g4 Bb5 38.f4 g6 39.h4 h6 40.Kg3 Ba4? 41.Nd7+– Kg7 42.Nc5 Bc2 43.Nb7 h5 44.gh5 gh5 45.Nc5 1–0. Fournier,Frederic – capablanca81, Active, 2008.

7.Bc4 0–0

8.0–0 Bd7 9.Nc3 Qe7 10.d4 Rad8 11.Qc2 e5 12.de5 (12.d5!? Nb8 13.e4+=) 12...Ne5= (12...Be5? 13.b5 (13.Ne5?! Ne5 14.Ne4 Nfg4+=) 13...Na5 14.Ne5 Qe5 15.Nd5+–) 13.Ne5 Be5 14.Nd5 Nd5 15.Bd5 Bb2 16.Qb2 Qd6? (16...c6 17.Bf3=) 17.Rad1 (better is 17.Bb7!? Qb6 18.Bf3+/–) 17...Qe7 18.Bb7 Rb8 (better is 18...Bb5!? 19.Rd8 Rd8=) 19.Bf3+/– a5 20.Qd4 Rbd8 21.Qc5 Qe6? (better is 21...Qc5!? 22.bc5 Bf5+/–) 22.Qa5 (better is 22.Qc7 ab4 23.Rd6+–) 22...Qc4 23.Qc5 Qa6 24.Ra1 Bb5 25.Rfc1 c6 26.Bc6 Bc6= 27.Qc6 Qd3?? 28.g3 h6 29.b5 Rb8 30.b6 Qb3 31.Rcb1 Qd3 32.b7 Qd8 33.a4 Qe7 34.a5 Rfd8 35.a6 Rd6 36.Qc8 Rc8 37.bc8Q Rd8 38.Qb7 Qd6 39.a7 Kh7 40.a8Q Ra8 41.Ra8 Qe5 42.Qc8 Qe4 43.Qh8 Kg6+– 44.Ra6 (44.Ra6 f6 45.Rb5+–) 1–0. Fournier,Frederic (1940) – jessicah (1725), Active (5/0), 2004.

8.0–0 e5 9.b5 Na5 10.Be2 Bf5 (better is 10...e4!? 11.Ng5 h6 12.Ne4 Ne4+=) 11.Be5 Be5 12.Ne5 Ne4 13.d4 a6 14.f3 Nd6 15.ba6 Ra6? (better is 15...b6 16.Nd2 Bc8+/–) 16.Ba6+– ba6 17.e4 Be6 18.d5 Bd7 19.Nd7 Qd7 20.Nc3 Ndc4 21.Re1 c6 22.dc6 Qc6 23.Rc1 (23.Kh1 Rb8+–) 23...Qc5 24.Kh1 Ne3 (24...Qa3 25.Nd5 Qc5 26.Re2+–) 25.Qe2 Nb3 26.Qe3 (26.Rb1 Ng4 27.Nd1+– (27.Rb3?! Nf2 28.Qf2 Qf2+=; 27.Qa6?? Nf2 28.Kg1 Nh3 29.Kh1 Qg1 30.Rg1 Nf2)) 26...Qe3+/– 27.Re3 Nc1 28.Nd5 Rb8 29.h3 Rb1 30.Kh2 Ra1 31.Nb4 Na2? (better is 31...a5!? 32.Nc6 a4+–) 32.Na6 Rd1 33.Rb3 Rc1 (33...g5+–) 34.Rb8 Rc8 1–0. Fournier,Frederic – Robbo, Rated Game fr.lichess.org, 2011. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.a3 Nc6 5.e3 Bd6)

8.0–0 Re8 9.d3 a6 10.Nbd2 b5 11.Bb3 Bb7 12.e4 e5 13.Rc1 a5 14.ba5 Na5 15.Ra1 Qd7 16.Bc3 Nb3 17.Qb3 Ra7 Attacks the isolani on a3 (17...Bc6 18.Rfe1+=) 18.Bb4 (better is 18.Qb2!?=) 18...c5–/+ 19.Bc3 Bc6 20.Qb2 Qe7 21.h3 Nd7 22.Nb3 f6?? (better is 22...Rea8–/+) 23.Na5+= Ba8 24.Qb5 Rb8 25.Qc4 Kf8 26.Rab1 Nb6 27.Qa2 Bc7 28.Nc4 (28.Qc2!?+/–) 28...Nc4+= 29.Qc4 Ra3 30.Rb8 Bb8 31.Ra1 Ra1 32.Ba1 Qc7 33.Qa6 Bb7 34.Qa3 Qe7 35.Nd2 Bd6 36.Nc4 Bc7 (36...Qe6!?=) 37.Bc3+/– g5 38.f3 h5 39.Kf2 (39.Bd2 Ke8+/–) 39...g4 40.fg4 hg4 41.hg4 Bc6 42.Qa7 Qh7?? (better is 42...Bb5+/–) 43.Qc5+– Kg8 44.Kg3 Qd7 45.Nb2 Bb7 46.Bb4 Bc8 47.Qf8+– Kh7 48.Qe7 Qe7 49.Be7 Kg6 50.Nd1 Ba6 51.Nb2 Ba5 52.Kf3 Bc3 53.Nc4 Bb5 54.Ke3 Bd4 55.Ke2 Ba4 56.Nd6 Bc5 57.Nf5 Bb6 58.Ne3 Bd7 59.Nd5 Bd4 60.Bf6 Bg4 61.Kd2 Be6 62.Bd8 Ba1 63.Ne3 Bd4 64.Bc7 Kg5 65.Nc4 Kf6 66.Ne3 Bb3?? 67.Nf5 Bb2 68.Bb6 Be6 69.Nd6 Bd7 70.Nc4 Ba1 71.Ke3 Bc3 72.d4 ed4 73.Bd4 Bd4 74.Kd4 Bc6 75.e5 Kf5 76.Ne3 Ke6 77.g4 Bf3 78.g5 Kf7 79.Kc5 Kg6 80.e6 Kg5 81.Kd6 Bh5 82.e7 Kf6 83.Kd7 Bg6 84.Nd5 Kg7 85.Nf4 Bf7 86.Ne6 Kf6 87.Nf8 Kg7 88.Kd6 Be8 89.Nd7 Kf7 90.Ne5 Kf6 91.Ng4 Kg7 92.Ke6 Kg6 93.Ne5 Kg7 ˝–˝. Hal1958 – Adamant, playchess.de, 2005.

8.0–0 Ng4 9.h3 Nf6 10.d4 e5?? (better is 10...a6=) 11.de5+– (11.Ne5?! Ne7+/–) 11...Be5 (11...Ne5 12.Ne5 Qe7 13.Nd3+–) 12.Ne5 Qd1 13.Rd1 Ne5 14.Be5 Ne4 15.Nc3 Nc3 16.Bc3 Bf5 17.Rd2 Rad8 18.Rad1 Rd2 19.Rd2 h6 20.Bd3 Be6 21.Be4 c6 22.Bd4 a6 23.Bc5 Re8 24.f4 Bh3 25.gh3 Re4 26.Rd8 Kh7 27.Rd7 f6 28.Rb7 Rc4 29.a4 Rc1 30.Kf2 Rc2 31.Kf3 Rb2 32.Rb6 Ra2 33.a5 1–0. Fournier,Frederic – gutiliza, Active, 2008.

8.Qc2 =.

8.d4 a6 9.0–0 b5 10.Bd3 Re8 11.Qc2 e5? (11...Bb7 12.Nc3+=) 12.de5 (12.Qc6 Bd7 13.Qa8 Qa8 14.de5+– (worse is 14.Ne5 Be5 15.de5 Ng4+=)) 12...Ne5+= 13.Ne5 Be5 14.Be5 Re5 15.Nd2?? (better is 15.Rc1+=) 15...Rd5–+ 16.Ne4 Rd3 17.Nf6 gf6 18.h3 (18.Rfd1 Bf5 19.Rd3 Bd3–+) 18...Bf5 19.Qc5 Rd5 20.Qc6 Rd6 21.Qf3 Bg6 22.Rfc1 Rc8 23.Qg3 Qe7 24.h4 Kh8 25.Qg4 Qe6 26.Qg3 Rc6 27.Rd1 Rg8 28.Qf3 Be4 (28...Be4 29.Rd8 Bf3 30.Rg8 Kg8 31.gf3 Qb3–+) 0–1. Fournier,Frederic – Mattoderwas, Partie amicale, 6m + 2s, 2007.

5.Nf3 Bd7

6.c4 dc4 7.Bc4 Bd6 8.Nc3 Qe7 9.d4 0–0–0 10.Qa4 (10.b5 Na5 11.Be2 c5+/–) 10...a6 11.b5 Nb8 (11...Na7!?+=) 12.Qb3 ab5 13.Bb5 Bb5 14.Nb5 Nc6 15.0–0 h5 16.Rac1 h4 17.h3 Ne4? (17...Qe8+/–) 18.Ne5?? (better is 18.Rc6 bc6 19.Na7 Kd7 20.Qc2+–) 18...Be5+= 19.de5 Nd2 (better is 19...Nc5!? 20.Qc4 Nd3 21.Nd6 cd6 22.Qd3 de5+/–) 20.Qa4+– Nf1 21.Qa8 (21.Qa8 Nb8 22.Kf1+–) 1–0. Fournier,Frederic – edn (1705), Active, 2008.

6.c4 dc4 7.Bc4 Be7 8.d4 Nb8 9.0–0 a6 10.Nbd2 Bb5 11.Bb5 ab5 12.Qe2 c6 13.Rfc1 Nbd7 14.Nb3 Qb6 15.Nc5 Bc5 16.dc5 Qc7 17.Rd1 0–0 18.Rd2 Rad8 19.Rad1 Ne5?? (better is 19...Ne4 20.Rd3 Kh8+/–) 20.Ne5 (20.Be5 Rd2 21.Qd2 Qc8+–) 20...Rd2 21.Rd2 (21.Qd2 Nd5+–) 21...Ne4 22.Rd1 Qe7 (22...Rd8 23.Qg4 Nf6 24.Qf3+–) 23.Nf3 (better is 23.Rd7!? Qe8 24.Rb7 f6+–) 23...Ng5 (23...Rd8 24.Nd2 Nd2 25.Rd2+–) 24.Ng5 Qg5 25.Qd3 f6 26.Qd7 Qg4 (26...Qf5 27.Ba1+– (worse is 27.Qb7 Qc2 28.Qd7 Qb2 29.Qe6 Kh8+–)) 27.Qb7 (better is 27.h3 Qe2 28.Qe6 Kh8 29.Qd6+–) 27…Qd1 0–1. Fournier,Frederic – negotiate, chess.com, 2013.

5.Nf3 Be7

6.Bc3 Bd7 7.b5 Nb8 8.a4 0–0 9.h4 (9.Be2 Ne4=) 9...Bd6 10.Bd4 c6 11.Be5 Be5 12.Ne5 Re8 (12...Ne4 13.d4+=) 13.h5 c5 14.Qf3 b6 (14...a6 15.g4 Rf8 16.Na3=) 15.g4 (better is 15.h6 g6 16.Rh4+=) 15...d4?? (better is 15...Rf8=) 16.Qa8+– de3 17.de3 Ne4 (17...Qc7 18.Nd7 Nbd7+–) 18.Qe4 a6 (18...Bc8 19.a5!+–) 19.Nc3 (19.ba6 Qc7 20.Nd7 Nd7+–) 19...a5 (19...Bc8 20.Rd1 Qf6 21.f4+–) 20.Rd1 Re7 (20...Qc7 21.h6 Bc8 22.hg7+–) 21.g5 (21.Nc6 Nc6 22.bc6 h6+–) 21...Qe8 22.Bd3 g6 23.Qh4 Bc8 24.hg6 fg6 25.Bg6! hg6 (25...hg6 26.Qh8#) 26.Qh8 1–0. Bandy 1 – pieeater, ChessWorld.net, 2013.

6.c4 0–0 7.Nc3 Bd7 8.Be2 a6 9.0–0 Re8 10.Re1 Bf8 11.cd5 Nd5 12.Nd5 ed5 13.Qb3 Be6 14.Nd4 Ne5 (14...Nd4 15.Bd4 Bd6 16.f4=) 15.Ne6 Re6 16.Be5 Re5 17.d4 Re6 18.Bf3 Rd6 19.Rac1 c6 20.a4 Qg5 21.g3 Re8 22.b5 ab5 23.ab5 Ree6 24.bc6 bc6 25.Rc2 g6 26.Rec1 Rf6 27.Bg2 Qf5 28.Qc3 h5 29.Qe1 h4 30.Qf1 hg3 31.hg3 g5 32.Bh3 g4 33.Bg2 Qh5 34.Qd3 Rh6 35.Kf1 Rdf6 36.Ke2 Qf5?? 37.Qf5+/– Rf5 38.Rc6 Rh2 39.Rg1 Kg7 40.Ra6 Bb4 41.Rb6 Be7 42.Rb5 Bf6 43.Rd5?? Rg2= 44.Rf5 Rg1 45.d5 Kg6 46.e4 Ra1 47.d6 Ra7 48.Rd5 Bd8 49.e5 Kf5 50.Kf1? Ke4 51.Rb5 Rd7 52.Ke2 Kd4 53.f4 Kc4 54.Rb8 Kc5 55.Kd3 Kd5 56.Rb5 Kc6 57.Rb8 Kc5 58.Rc8 Kb6 59.Rc4 Kb7 60.Ke4+/– f6 61.Kf5+– fe5 62.fe5 Rg7 63.Rd4 Kc6? 64.Rg4+– Rf7 65.Ke4 Kd7? 66.Rf4 Rg7 67.g4?? Bg5? 68.Rf5+– Bc1? 69.Kd5 Rg4 70.e6 Ke8 71.e7 Kd7 72.Re5 (72.Re5 Rg8 73.e8B Re8 74.Re8 Ke8 75.Ke6=) 1–0. Fournier,Frederic (2010) – REHSIF (1980), Echecs21, 2003.

6.c4 0–0 7.cd5 Qd5 8.Nc3 Qh5 9.Be2 Qg6 10.0–0 Rd8 11.d4 Bd6 12.Bd3 Qh6 13.e4?? (13.Nb5 Bd7+=) 13...e5?? (better is 13...Nd4 14.g3 Ng4–+) 14.d5 Nd4 15.Nd4?? (better is 15.Bc1 Qg6 16.Nd4 ed4 17.e5=) 15...ed4–+ 16.Ne2?? (16.h3 dc3 17.Bc3 Bh3 18.e5 Bg2 19.Kg2 Qg5 20.Kh1 Be5 21.Be5 Qe5 22.Qf3–+) 16…Qh2 0–1. Fournier,Frederic (1845) – play2win (1715), Active (5/0), 2005.

6.c4 dc4 7.Bc4 a5 8.b5 Na7 9.Nc3 c6 10.bc6 Nc6 11.0–0 e5 12.Bb5 Bg4 13.d3 0–0 14.h3 Bh5 15.Qc2 (better is 15.g4!? Bg6 16.Bc6 bc6 17.Ne5+/–) 15...Bf3+= 16.gf3 Nd7 17.Bc6 bc6 18.Ne4 Nf6 (better is 18...f5!? 19.Nd2 Nc5=) 19.Be5+/– Ne4 20.fe4 Bh4 (20...Bd6 21.Bd6 Qd6 22.Rfc1+/–) 21.Bg3 (better is 21.Qc3!? f6 22.Bd4+–) 21...Qg5+= 22.Kh2 Bg3 23.fg3 Qe3 24.Rae1 Qh6 25.Rf4 Ra6 26.Ref1 c5 27.Qc5+/– Qc6 28.Qc6 Rc6 29.h4 Rc3+= 30.d4 Ra3 31.d5 Rd3 32.Ra1 Ra8 33.Ra4 Rb3 34.Kh3 Rb4 35.Rb4 ab4 36.Rf3 Rb8 37.Rb3 Kf8 38.Kg4 Ke7 39.Kf4 f6 40.g4 g6 41.Ke3 Kd6 42.Kd4 h6 43.Ke3 g5 44.hg5+/– hg5 45.Kd3 Ke5 46.Ke3 Rb7 47.Rb1 b3–/+ 48.Rb2 Rb4 49.Kf3 Re4 50.Rb3–/+ Kd5?? 51.Rb6 Re6 52.Rb5 Kd6 53.Rf5 Ke7 54.Ra5 Kf7 55.Rf5? Re5–+ 56.Re5 fe5 57.Ke4 Ke6 58.Kd3 Kd5 59.Ke3 e4 60.Kd2 Kd4 61.Ke2 e3 62.Ke1 Ke4 63.Ke2 Kf4 64.Kd3 Kf3 (64...Kf3 65.Kc3 Kg4–+) 0–1. Fournier,Frederic (1670) – polgita (1650), Active, 2006.

6.c4 dc4 7.Bc4 Bd7 8.d4 0–0 9.Nbd2 a6 10.0–0 b5 11.Bd3 Bd6 12.Qc2 e5?? (better is 12...a5+/–) 13.de5+– (13.Ne5?! Ne7+–) 13...Be5 (13...Ne5 14.Ne5 h6 15.Nd7 Nd7 16.Bh7 Kh8 17.Be4+–) 14.Ne5 Ne5 15.Be5 Qe7 16.Nf3 g6 17.Qb2 (17.Qc7 Rfd8+–) 17...Kg7 (17...Ne8 18.Bd4+–) 18.Rac1 c6 19.Rc2 (better is 19.Ng5 Rfe8 20.Bd4+–) 19...Bg4 (19...a5 20.Ng5 Rfe8 21.Rc5+–) 20.Be2 (better is 20.Rc6 Be6 21.Ng5 Kg8 22.Bf6 Qd7+–) 20...Bf3 21.Bf6 (21.Bf3!? Rac8+–) 21...Qf6 22.Qf6 (worse is 22.gf3 Qb2 23.Rb2 Rfd8+–) 22...Kf6 23.Bf3 a5 (23...Rfc8 24.Rfc1 Ra7 25.Rc6 Rc6 26.Rc6 Kf5 27.Rb6+–) 24.Rc6 Kg7 25.Rc5 ab4 26.Ba8 Ra8 27.ab4 Rb8 28.Ra1 h5 29.Ra5 h4 30.Rab5 Ra8 31.Ra5 Rd8 32.Rc1 Rb8 33.Rb1 White intends b5 33...f5 34.h3 Kh6 35.b5 Kh5 36.b6 Rb7 37.Ra7 Rb8 38.b7 f4 39.ef4 g5 40.fg5 Kg5+– 41.Ra8 Rb7 42.Rb7 Kf4 43.Ra4 Kg5 44.Rb5 Kf6 45.Ra6 Ke7 46.Rb7 (46.Rb7 Ke8 47.Ra8) 1–0. Fournier,Frederic – citizenkane, Active, 2008.

6.c4 d4 7.Nd4 Nd4 8.Bd4 0–0 9.Be2 Bd7 10.0–0 a6 11.d3 Bc6 12.Bf3 Bf3 13.Qf3 (13.gf3?! a5+=) 13...c6 14.Rd1 Qc7 15.Nc3 Rad8 16.Ne4 White plans c5 16...Ne4 17.de4 e5 18.Bc3 Rd1 19.Rd1 Rd8 20.c5 f6 21.Qe2 Rd1 22.Qd1 Qd8 23.Qd8 Bd8 24.f4 Bc7 25.g3 Kf7 26.Kf2 g6 27.Kf3 Ke6 28.g4 Bb8 29.h4 White prepares the advance g5 29...h6 30.g5 f5?? 31.gh6+– Kf7 32.fe5 Kg8 33.ef5 gf5 34.e6 1–0. Fournier,Frederic – rauso, Active, 2007.

6.d4 Ne4 7.Bd3 0–0 8.0–0 Bf6 (8...Nd6 9.Nbd2+=) 9.Nbd2 a6? (9...Nd2 10.Nd2 a6 11.c4+=) 10.c4 (better is 10.Ne4!? de4 11.Be4+–) 10...Nd2+= 11.Qd2 Qd6 12.Rad1 Rd8 13.c5 Qe7 14.Bb1 e5 15.de5 Ne5 16.Ne5 Be5 17.Bd4 Bg4 18.f3 Bd4 19.ed4 Bh5 (19...Be6!?+=) 20.Rfe1 Qf6 21.Re5 (21.Re5 Bg6 22.Bg6 Qg6 23.Re7+/–) 1–0. aga2013 (1770) – bondefanger (1785), gameknot.com, 2014.

6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.Be2 Nc6).

5.Nf3 g6

6.c4 Bg7 7.cd5 Qd5 8.Nc3 Qf5 9.d4 0–0 10.Bd3 Qg4 11.0–0 Ne7 12.Ne5 Qd1 13.Rfd1 Nfd5 14.Nd5 Nd5 15.Nf3 c6 16.Rdc1 f5 17.Rc2 f4 (17...Bd7 18.Ne5 Be5 19.de5+=) 18.e4+/– Nf6 19.Rac1 Ng4 20.h3 Nf6 21.Ne5 f3? (better is 21...a5!?+/–) 22.Nf3+– (22.gf3?! Nd7+/–) 22...Nh5 23.e5 Rf3 24.gf3 Nf4 25.Bf1 Bh6 26.Rd1 Nd5 27.Bc1 Bg7 28.Bc4 Nb6 29.Be2 Bd7 30.Rd3 Rf8 31.Be3 Nd5 32.Rd1 Ne3 33.fe3 Rf5 34.f4 g5 35.Bg4 Rf7 36.fg5 h6 37.h4 hg5 38.hg5 Bf8 39.Rf1 Rg7 40.Rf4 Rg5 41.Rg2 Bh6 42.Rf6 Bg7 43.Rf3 Rg6 44.Rfg3 Kh8 45.Be6! Rg3 46.Bd7 Re3 47.a4 Re1 48.Kf2 Rd1 49.Rg4 Rd2 50.Ke3+– Bh6 51.Ke4 Re2 (51...Re2 52.Kf5 Rd2+–). Fournier,Frederic (1775) – start5, Active (5/0), 2005.

6.d4 Bg7 7.c4 0–0 8.Nc3 Bd7 9.cd5 ed5 10.Be2 Bf5 11.0–0 Ne4 12.Bd3 Nc3 13.Bc3 Bd3 14.Qd3 Qd7 15.Rac1 Rae8 (15...Ne7 16.Ne5 Qe6 17.Rfe1=) 16.Rfe1 (16.b5 Ne7+/–) 16...Bh6 (16...a6 17.a4+=) 17.Bb2 Re4 18.h3 Rfe8 19.Re2 Qf5? (19...Nd8 20.Rec2 c6 21.b5+=) 20.Rce1 (better is 20.Qb5!?+–) 20...Bf8 (20...Qh5 21.Rc2 Bf4 22.b5+= (worse is 22.ef4 Re1 23.Ne1 Re1 24.Kh2 a6=)) 21.Qc2 (21.Nd2 R4e6 22.Qf5 gf5+=) 21...Bd6 22.Kf1 g5 23.Rc1 g4= 24.hg4 Qg4 25.Nd2 Qh4 26.Nf3?? Qh1–+ 27.Ng1 Rg4 28.f3?? Rg6 29.f4 Kh8 30.Rce1 Reg8 31.Bc1 Be7 32.g4?? Rg4–+ 33.Rf2 Rg1 34.Ke2 Re1 35.Kd3 Qe4 36.Kd2 Rgg1 37.Qe4–+ de4 38.Bb2 Rd1 39.Kc2 Bh4 40.Re2 Rge1 41.Rg2 Rd3 42.d5 f6 43.dc6 bc6 44.Rh2 Rde3 45.Rh4 R1e2 46.Kb1 Re1 47.Ka2?? R3e2–+ 48.Kb3 Rb1 0–1. Fournier,Frederic – margapreciosa (1700), Active, 2008.

4...Bd6

5.Bb5 c6 6.Ba4 0–0 7.Nf3 b5 8.Bb3 a5 9.0–0 Nbd7 (9...ab4 10.ab4 Ra1 11.Ba1 Bb4 12.Ne5–/+) 10.ba5=+ Ra5 11.Bc3 Ra8 12.a4 Re8 13.a5? (better is 13.ab5!? Ra1 14.Ba1 cb5 15.Nd4=+) 13...b4 14.Bb2 Ra5 15.Ba4 Bb7 16.c3 c5 17.cb4 cb4 18.d4 Nb6?? (better is 18...Qc7–+) 19.Be8+/– Ra1 20.Ba1 (better is 20.Bf7!? Kf7 21.Ba1+/–) 20...Qe8=+ 21.Qb3 Ba6 22.Rc1 Bc4 23.Qd1 Ne4 24.Nbd2 Qb8 25.Ne4 de4 26.Ng5 Bh2 27.Kh1 h6 28.Ne4 Bd5 29.Qg4 (29.Nc5 Bd6+=) 29...Be4 (29...f5!? 30.Qh3 Be4 31.Qh2 Qh2 32.Kh2 Nd5=) 30.Qe4+= Nd5? (30...Bc7 31.Qg4 Nd5 32.e4+=) 31.Rc5?? (better is 31.g3 Bg3 32.fg3+–) 31...Bd6+= 32.Ra5 b3 33.Qd3?? (33.Bb2 g6+=) 33...Nc7?? (33...b2 34.Bb2 Qb2 35.Ra8 Bb8 36.Kg1–+) 34.Qc4?? (better is 34.Bb2+/–) 34...Qb6 35.Qd3?? (better is 35.Rc5 Bc5 36.dc5–/+) 35…b2 (36.Bb2 Qa5–+ (36...Qb2?! 37.Qf1–+); better is 35...Qa5 36.Qd1 Qa2–+) 0–1. tromar (1685) – Groteherm (1615), GameColony.com, 2002.

5.Bb5 Bd7 6.Bd3 0–0 7.Nf3 Ba4 8.Nc3 Qd7? (8...Bc6 9.b5 Bd7 10.0–0=) 9.Ng5?? (9.b5 a6 10.Na4 ab5 11.Bf6 Ra4 12.Nd4 Rd4 13.Bd4+– (13.ed4?! gf6 14.Qe2 c6+/–)) 9...h6 (9...e5 10.b5 e4 11.Bf1+– (11.Na4?! ed3 12.Bf6 gf6=)) 10.Nf3 (better is 10.Na4 Qa4 11.Bf6 gf6 12.Nh7+/–) 10...Ng4? (10...a6 11.Na4 Qa4 12.Bf6 gf6 13.Nd4+=) 11.0–0 (better is 11.b5 a6 12.Na4 ab5 13.Nc3+–) 11...Nc6?? (better is 11...a6+=) 12.Na4+– Nce5 13.Nc5 Bc5 14.bc5 Qc6 15.Ne5 Ne5 16.Be5 Qc5 17.Qg4 g5 18.Qh5 f6 19.Qg6 Kh8 20.Qh7# 1–0. Wloka,Frank – Schroth,Andreas, remoteschach.de, 2004.

5.Nc3 a5 =+.

5.c4 a6 6.Qc2 (6.c5 Be7=) 6...dc4 7.Bc4 b5 8.Bb3 (8.Be2 Bb7 9.Bf3 Bf3 10.Nf3 0–0=) 8...Bb7 9.f3 (9.Nf3 Nbd7=+) 9...a5 (9...Ng4 10.Ke2 Qh4 11.Nh3–/+) 10.Nc3 ab4 (10...Bc6 11.ba5 Ra5 12.d3=+) 11.Nb5= 0–0 (11...ba3 12.Nd6 cd6 13.Ba4 Nbd7 14.Ba3=) 12.Ne2 (12.Nd6 Qd6 13.ab4 Na6 14.Bf6 Nb4=) 12...ba3= 13.Ba3 Ba3 14.Ra3 Ra3 15.Na3 Ba6 16.Bc4 Qd6 17.0–0?? (better is 17.Qc3=) 17...Qa3–+ 18.Ba6 Na6 19.Rb1 Rd8 20.Nd4 Qc5 21.Qb2 e5 22.Rc1 Qb4 23.Qb4 Nb4 24.Nb3 Nfd5 25.e4 Nd3 26.ed5 Nc1 27.Nc1 Rd5 28.d3 f5 29.Kf2 Rd6 30.g3 g5 31.h3 Kf7 32.Ke3 Rh6 33.Ne2 Rh3 0–1. wlittle (2180) – xxwidowmakerxx (2000), net–chess.com, 2004.

5.c4 Nbd7 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7 6.c4).

5.c4 e5 6.cd5 Nd5 7.e4 =+.

5.c4 Be7 6.Nf3 c5 (6...a5 7.Qa4 Bd7 8.b5=) 7.bc5 (7.cd5 ed5 8.bc5 Bc5=) 7...Bc5 (7...dc4 8.Qa4 Nbd7 9.c6 bc6 10.Qc6=) 8.d4 (8.cd5 ed5 9.Qb3 Be7+=) 8...Be7= 9.Bd3 (9.Nbd2 Nc6=) 9...0–0 (9...dc4 10.Bc4 0–0 11.0–0=) 10.Nc3 (10.Nbd2 Nc6=) 10...Nbd7 (10...dc4 11.Bc4 a6 12.Bd3=) 11.c5 Qc7 12.Nb5 (12.0–0 b6 13.Nb5 Qb7+/–) 12...Qc6= 13.Rc1 a6 14.Qa4 (14.Nc3 Rb8=) 14...Ne4 (14...e5 15.Ne5 Ne5 16.de5=) 15.Nc3 Nc3 16.Qc6 bc6 17.Bc3 Nf6? (17...Re8!?=) 18.Ba5 Rb8 19.Bb6 Nd7+= 20.Bc7 Rb7 21.Bd6+/– Re8? 22.Ba6+– (22...Ra7 23.Bc8+–) 1–0. jpettit (2365) – geebs (2275), net–chess.com, 2005.

5.d3 0–0 6.e4 de4 7.de4 Ne4 8.Qg4 Nf6 9.Qh4 Nbd7 10.Bd3 Be5 11.Nc3 c5 12.Nf3 cb4 13.ab4 b6 14.Ng5 h6 15.Nge4 Bb7 16.Nf6 Nf6 17.Rd1 Qc8 18.Qh3 Bc3 19.Bc3 Qc3 20.Kf1 Qb4 21.Qe3 Rfd8 22.Ke2 Be4 23.Rb1 Qa4 0–1. Galagus – Omni, playchess.de, 2001.

5.Bd3 e5 6.c3 0–0 7.Ne2 Nbd7 8.Ng3 e4 9.Bc2 Ne5 10.h3 (10.0–0 Nfg4 11.h3 Qh4–+) 10...c6 11.a4 Qc7 12.Qe2 (12.Na3 Be6–/+) 12...Nc4–+ 13.Bc1 Bg3 14.fg3 Qg3 15.Qf2 Qf2 16.Kf2 Ne5 17.Ke2 Bf5 18.Ba3 b5 19.Rf1 Bg6 20.Rg1 a6 21.a5 Ne8 22.Bb2 Bh5 23.g4 Bg6 24.Na3 f5 25.Raf1 fg4 26.Rf8 Kf8 27.hg4 Ng4! 28.Ke1 (28.Rg4 Bh5 Pinning (28...Bh5 Decoy)) 28...Ne5 29.c4 (29.Ke2–+) 29...Nf3 30.Kf2 Ng1 31.Kg1 dc4 32.Bd4 Nc7 33.Bd1 h5 34.Nc2 Ne6 35.Be5 (35.Bb6 Kf7–+) 35...Kf7 36.Be2 Rd8 37.Nd4 (37.Bc3 c5–+) 37...c5 38.bc5 Nc5 39.Bc7 Rd7 40.Bb6 Nb3 (40...Na4 41.Kf2–+) 41.Kf2 Kf6 42.Ke1 Nd4 43.ed4 Bf7 44.Bc5 g5 45.Kf2 g4 46.Bf1 h4 47.Bg2 Bd5 48.Ke2 (48.Bf1 Kg5–+) 48...Kf5 (48...h3 49.Bh1–+) 49.Kf2 (49.Bf1 h3 50.Ke3 Ke6–+) 49...g3 50.Ke3 Kg4 51.Bf1 Rf7 52.Be2 Rf3! 53.Bf3 ef3 54.Bd6 h3 0–1. Aslan,Ziver – Ceylan,Imamettin (1910), TUR–ch op Antalya, 2008.

5.d4 b6 6.c4= dc4 (6...0–0 7.Nc3=) 7.Bc4 Bb7 8.Nf3 0–0 9.Nc3 a6 10.0–0 Nbd7 11.Re1 e5 (11...b5 12.Bd3=) 12.e4 White plans d5 12...Qe7 (12...Re8 13.Qb3 Qe7 14.Rad1=) 13.d5 (13.Qd3 Rae8+=) 13...Nh5 (13...Rfc8 14.Qd3=) 14.Nd2 (14.Qc2 b5 15.Bb3 Nf4+=) 14...g6 (14...Nf4 15.Ne2 Ne2 16.Qe2=) 15.Re3 (15.Nf3 b5 16.Bb3 Rac8+=) 15...Ng7 (15...Rfd8 16.Rc1+=) 16.Ne2 (16.Rc1 Rfd8+/–) 16...a5 (16...b5 17.Bb3+=) 17.b5 Kh8 (17...Bc5 18.Rf3+/–) 18.Kh1 (18.Nc3 f5+/–) 18...f5 (18...Bc5 19.Rf3+=) 19.Rh3 (19.Nc3 Bc5 20.Re2 Nh5+=) 19...Nc5 (better is 19...Nf6 20.Nc3 Bc5+=) 20.f3 (better is 20.Nc3!?+=) 20...Bc8+= 21.Rh6 (21.ef5 Bf5 22.g4 Bd3+=) 21...Qg5 (21...fe4 22.Ne4 Nf5 23.Qd2 Ne4 24.fe4 Nh6 25.Qh6–/+) 22.Rh3+= fe4 23.Rg3 Qh4 24.fe4 Ne4 25.Ne4 Qe4 26.Bd3 Qh4 27.Re3 Qh6 28.Re5 Bb7 29.Qc1= Qh4 30.Qg5 Qg5 31.Rg5 Rae8 32.Rd1? Rf2–/+ 33.Bd4? Rfe2 34.Be2 Re2 35.Kg1 Kg8 36.Kf1 Re4 37.Kf2 Nf5 38.Re1 Rf4 39.Ke2 Bd5 40.Kd2 Rd4 41.Kc2 Kf7 0–1. Wilk,Adam – Sawczuk,Czeslaw (2060), Poland–chT region, 1999.

5.d4 Nc6 6.Bb5 Bd7 7.Nc3 a6 8.Bc6 Bc6 9.Nf3 Qe7 10.h3 0–0–0 11.0–0 h6 12.a4 (better is 12.Ne5 Qe8 13.Qe2=) 12...g5?? (12...Bb4 13.Ne5 Be8 14.Qf3–/+) 13.Ba3 (better is 13.b5!? Be8 14.ba6 ba6 15.Qe2+/–) 13...g4 14.hg4 Ng4 (14...Be8 15.Ne5+=) 15.Qc1? (15.b5 Ba3 16.bc6 bc6=) 15...h5 (15...Bb4 16.Bb4 Qb4 17.Qd2–/+) 16.g3 (16.b5 Be8=) 16...Rdg8 (better is 16...Bb4 17.Bb4 Qb4–/+) 17.Re1?? (better is 17.b5 Ba3 18.Ra3–/+) 17...h4 (17...Qf6 18.b5 Qf3 19.Qd2 Bg3 20.fg3 Ne3 21.Bc5 Rg3 22.Kh2 Ng4) 18.Kf1 (18.b5 Qf6 19.Qd1 hg3 20.fg3 Bg3–+) 18…hg3 0–1. 488 – pieeater, ChessWorld.net, 2012.

5.d4 e5?? 6.de5+– Ne4 (6...Bg4 7.f3 Be5 8.Be5+–) 7.ed6 Qd6 8.Nf3 (8.Bg7 Rg8 9.Bb2 Nc6+–) 8...f5 (8...0–0 9.Nbd2+–) 9.Bd3 (better is 9.Bg7!? Rg8 10.Be5 Qd8+–) 9...Nd7 10.0–0 Ndf6 11.Nbd2 Be6 12.Ne4 fe4 13.Bf6 gf6 14.g3 0–0–0 15.Nh4 Bh3 16.Re1 ed3 17.Qd3 d4 18.Qd4 Qc6? 19.Qf4?? Rhf8 20.Qf3 Qc2? 21.Rac1 Qb3 22.Qf4?? Rd7 23.Nf5 Bf5 24.Qf5 Rfd8 25.Qf6 h5 26.h4 b6 27.Rf1 Kb7 28.Qf5 Qd5 29.Qd5+– Rd5. Fournier,Frederic – Luckyplayer vol2 (1845), Partie amicale, 1m + 0s, 2007.

5.f3 0–0 6.c4 c6 (6...dc4 7.Bc4 a5 8.b5=+) 7.d4 (7.c5 Bc7=+) 7...dc4–/+ 8.Bc4 Nd5 9.Bd5 ed5 10.Nc3 Bf5 11.Nge2 Qh4 12.g3 Qh3 (better is 12...Qe7 13.Bc1 Re8–/+) 13.Nf4?? (13.e4!? de4 14.fe4=+) 13...Bf4 14.ef4?? (14.gf4 Qg2 15.Rf1 Qb2 16.Qc1 Qh2 17.e4 Qg3 18.Ke2–+) 14...Qg2–+ 15.Qe2 Qh1 16.Kd2 Qa1 17.Ba1 Na6 18.b5 Rfe8 19.Qe8? Re8–+ 20.ba6 b6 21.a4 Bc8 22.g4 Ba6 23.h4 f6 24.f5 Bf1 25.f4 Bh3 26.g5 fg5 27.fg5 Bf5 28.Ne2 Re4 29.Ng3 g6 30.Ne4–/+ de4 31.Ke3 Kf7 32.Kd2 Ke6 33.Bc3 Kd5 34.Ke3 Kc4 35.Bd2 a5 36.Be1 Kb3 37.Kf4 Ka4 38.Ke5 Kb3 39.d5 cd5 40.Kd5 a4 41.Bf2 b5 42.Kd4 a3 43.Kc5 a2 44.Bd4 e3! 45.Be3 a1Q 46.Kb5 Bd3 47.Kb6 Qa6 (48.Kc7 Qc4 49.Kd6 Qh4–+) 0–1. Charlemagne – tonjan (1675), internet, 2007.

5.f4 a5 6.b5 =+ .

5.f4 c5 6.bc5 Bc5 7.d4 Bb6 8.Bd3 Nc6 9.Nc3 (9.Nf3 Ba5 10.Bc3 Bc7=) 9...Qc7 10.Nf3 Ne7 11.Nb5 Ba5 12.Kf2 (12.Ke2!? Qd8 13.Bc3 Bc3 14.Nc3=) 12...Qb6–/+ 13.Bc3 (13.Qe2 a6 14.Nc3 Qb2 15.Na4 Ne4 16.Be4–+) 13...Ne4–+ 14.Be4 Qb5?? (better is 14...de4 15.Rb1 ef3 16.Ba5 Qa5 17.Nd6 Kf8 18.Qf3 Qa3 19.Nb7 Qc3–+) 15.Bd3+= Qb6 16.Rb1 Qc7 17.Ba5 Qa5 18.Qc1 0–0 19.Rb4 a6 20.c4 dc4 21.Rc4 Bd7 (21...b5 22.Rc5=) 22.Rc5+= b5 23.Ne5 Qd8 24.Qc2 g6 25.h4 Rc8 26.h5 Nf5 27.hg6 fg6 28.g4 Ne7 29.Bg6! Nf5?? (29...Ng6 30.Ng6 Decoy; 29...hg6 30.Ng6 Decoy) 30.Bh7 Kg7 31.gf5 ef5 32.Qc1 Rh8 33.Qg1 Kf8 34.Qg6 Qe7 35.Nd7 Qd7 36.Qf6 Qf7 37.Rc8 1–0. marekt – minka, internet, 2013.

5.f4 c6 6.Nf3 Qc7 7.Be2 (7.Bd3 Nbd7 8.Nd4 a5=) 7...Nbd7 8.0–0 0–0 9.h3 (9.Nd4 a5 10.Nc3 b5+=) 9...e5 10.fe5 Ne5 (worse is 10...Be5 11.Ne5 Ne5 12.Qe1+=) 11.d3 Nf3 12.Bf3 Be5 13.d4 (13.Nc3 a5+=) 13...Bd6 (13...Bh2!? 14.Kh1 Re8–/+) 14.Qd3 Re8 15.Nd2 Bd7 (15...Qe7 16.Rae1 Ne4 17.Be4 de4 18.Qb3–/+) 16.Rae1 (16.e4 de4 17.Ne4 Ne4 18.Be4 g6=) 16...Re7 (16...a5!? 17.e4 Qb6= (worse is 17...ab4 18.e5+=)) 17.e4= de4 18.Ne4 (worse is 18.Be4 Rae8–/+) 18...Ne4 19.Be4 h6 (19...Kh8 20.Bh7 Re1 21.Re1+=) 20.Bh7+= Kf8 21.Re7 Be7 22.Bg6 (22.d5 Qd6 23.Be4 f6+=) 22...f6 (22...Bf6 23.Be4=) 23.Qc4 (23.Bh5!? Kg8 24.d5=) 23...Be8= 24.Be8 Ke8?? (better is 24...Re8 25.d5 Rd8 26.dc6 Qb6 27.Kh1 Rc8=) 25.Qg8+– Bf8 (25...Kd7 26.Qa8 a6 27.Re1+–) 26.Re1 Qe7 27.Re7 Ke7 28.Qc4 Rb8 29.Qc5 Kd7 30.Qa7 Kc7 31.Qa5 b6 32.Qf5 Re8 33.Qg6 Re7 34.Kf2 Rd7 35.c4 Re7 36.c5 b5 37.Qg3 Kb7 38.Qb3 g5 39.a4 Rd7 40.ab5 cb5 41.Qe6 Kc7 42.Qf6 Bg7 43.Qb6 Kc8 44.c6 Rc7 45.Qb5 Kd8 46.Qc5 Rc8 47.Qd5 Ke8 48.Qd7 Kf8 49.Qc8 Kf7 50.Qd7 Kg6 51.c7 g4 52.c8Q Kh5 53.Qg4 1–0. Gusson,Jurgen – Wagner,Leopold Franziskus (1625), Mureck AUT, 2014.

5.f4 Nc6 6.Nf3= Bd7 (6...Ne7 7.Nc3=) 7.Be2 a6 (7...a5 8.b5 Ne7 9.0–0=) 8.0–0 0–0 9.c4 (9.Ne5=) 9...b5 (better is 9...dc4!? 10.Bc4 b5=) 10.cb5+/– ab5 11.Bb5 Rb8 (11...Ne7 12.Bd3+/–) 12.Bd3 (12.Be2 Qe7+/–) 12...Re8 (12...Qe7 13.Ne5+–) 13.Ne5+– Ne5? (better is 13...Ne7+–) 14.fe5 (14.Be5?! Bb5 15.Bb5 Rb5+/–) 1–0. Wall,Bill – Flyer, internet, 2002.

5.g4 e5 6.g5 Nfd7 =+.

5.g4 Qe7 6.g5+= Ne4 (6...Nfd7 7.Bg7 Rg8 8.Bh6+=) 7.h4 (7.d3 Bb4 8.Ke2 Bd6 9.de4 Qg5+/–) 7...Rg8 (7...e5!?=) 8.d3 Ng3? (better is 8...Bb4!? 9.Ke2 Nf2 10.Kf2 Bc5+/–) 9.fg3+– Nd7 10.Ne2 e5 11.e4 d4 12.c4 c5 13.Bh3 Nb6 14.Bc8 Rc8 15.b5 a5 16.a4 g6 17.Bc1 f5 18.gf6! Qf6 19.Rf1 Qd8 20.Qd2 Nd7 21.Qh6 Nf6 22.Bg5 Be7 23.Nd2 Qd7 24.Bf6 Bf8 25.Qg5 h6 26.Qe5 Be7 27.Nf4 b6 28.Nd5 Qd6 29.Nf3 Qe5 30.Ne5 Bd6 31.Nb6 Rc7 32.0–0–0 Be5 33.Be5 Rb7 34.Rf6 Ke7 35.Rdf1 Rg7 36.Nd5 Kd8 37.Rf8 Kd7 38.Bg7 (38...Rb5 39.R1f7 Kc6 40.Rc7 Kd6 41.e5 Ke6 42.Re7; 38.R1f6 Rb6 39.Nb6 Ke7 40.Bd6) 1–0. bentengutama (1965) – bienopia (2105), net–chess.com, 2003.

5.h3 Nc6 6.c4 Qe7?? (better is 6...dc4 7.Bc4 e5+=) 7.c5+– Be5 8.Be5?? (better is 8.d4 Nd4 9.ed4+–) 8...Bd7?? (better is 8...Ne5 9.d4 Ned7=) 9.d4 (9.Bc7 Ne4 10.d4 0–0+–) 9...0–0 (9...Ne5 10.de5 Ne4 11.Nd2+–) 10.Bd3 (10.Bc7 Rfc8 11.Bd6 Qd8+–) 10...Ne4 11.Be4 de4 12.Qg4 g6? 13.Qe4 Rad8 14.Bc7 Rc8 15.Bd6 Qe8 16.Nf3 f5 17.Qf4 Rf7 18.Nbd2 a5 19.Ne5 Rg7 20.Ndf3 ab4 21.0–0 b3 22.Nc4 Ra8 23.Be5 Ne5 24.Nfe5 Bc6 25.Rfd1 Bd5 26.Nb6 Rb8 27.Nbd7! Ra8 28.Nf6 Kf8 29.Ne8 Re8 30.Nd3 h6 31.Qh6 Ree7 32.Ne5 b2 33.Rab1 Bb3 34.Rd2 Kg8 35.Rbb2 Bd5 36.Ng6 Ref7 37.Qh8 1–0. 488 – pieeater, ChessWorld.net, 2012.

5.b5 0–0

6.Nf3 a6 +=.

6.f4 Nbd7 7.Nf3 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 c5 11.Be2 c4 12.Bd4 Qa5 13.Nc3 Bc5 14.0–0 Ne4 15.Qa1 Qa1 16.Ra1 Bd4 17.Nd4 Nc3 18.dc3 Nc5 19.Bf3 b6 20.Ra8 Bb7=+ 21.Ra7 Ra8 22.Ra8 Ba8 23.h4 f6 24.g4 Kf7 25.Kf2 Na4 26.Ne2 e5 27.g5 h6 28.gh6 gh6 29.Ke1 Ke6 30.Kd2 Bb7 31.Bg4 f5 32.Bf3 Nc5 33.fe5 Ke5 34.Nd4 Ne4 35.Be4 Ke4 36.Ke2 Bc8 37.Nf3 f4 38.Nd2 Kf5 39.Kf3 fe3 40.Ke3 h5 41.Kd4 Be6 42.Nf3 Kg4 43.Ke3 Kg3 44.Nd4 Bd7 45.Ne2 Kh4 46.Nd4 Kg4 47.Kf2 h4 48.Kg2 h3 49.Kh2 Kf4 50.Nc6 Ke3 51.Nb4 Be6 52.Na6 Kd2 53.Nc7 Bf7 54.Na8 Kc3 55.Nb6 d4 56.Nc8 Kc2 57.Ne7 d3 58.b6 d2 59.b7 d1Q 60.b8Q Qe2 61.Kh3 Qe7 62.Qf4 c3 63.Qf2 Kb1 64.Qb6 Kc1 65.Qg1 Kb2 66.Qg2 0–1. Mosley,Gene – Ehrlich,Stefan, 2005.

6.Bf6 gf6?! 7.c4 =.

6.Bf6 Qf6–/+ 7.Nc3 c6 8.a4 e5 9.d3?? (better is 9.Nge2–/+) 9...Bb4–+ 10.Ra2 (10.Nge2 d4 11.Rb1 Bc3 12.Nc3 dc3 13.Rb3–+) 10...Bc3 (10...Bc3 11.Ke2 d4–+) 0–1. overtoom – rayz88 (1800), gameknot.com, 2014.

5.c4 0–0

6.Qb3 c6 7.Qc3 Nbd7 8.Nf3 dc4 9.Bc4 b5 10.Be2 Bb7 11.0–0 Nb6 12.e4 Nc4 13.Qd4?? (13.Qc4 bc4) 13...Nb2 14.e5 Be5 15.Qe5 Na4 16.Rd1 Rc8 17.Nc3 Nb6 18.a4 a6 19.Qe3 Nbd5 20.Nd5 Nd5 (20...cd5?! 21.ab5 ab5 22.Nd4=) 21.Qb3 Qe7 22.Rdb1 Nb6 23.ab5 cb5 24.Rb2 Rc7 25.Qd1 Rfc8 26.h3 Na4 27.Rb3 Bd5 28.Rbb1 Rd8 29.Ne5 f6 30.Nd3 Be4 31.Qb3? (31.Rb3–+) 31...Rcd7 32.Nf4 Bd5?? (better is 32...Bb1 33.Rb1 Qf7–+) 33.Qe3–/+ e5 34.Nd5 Rd5 35.Qb3 ˝–˝. Diederich,Hauke – Brodt,Dominik, GER–chT WK II schools U18, 1999.

6.Qc2 b6 7.Nf3 Bb7 8.Ng5 g6 9.h4 Nbd7 (better is 9...Qe7!?=) 10.h5+= Nh5? (better is 10...Qe7+=) 11.Rh5+– Be7?? (11...e5+–) 12.Rh7 e5 13.Nf7! Rf7 (13...Rf7 14.Qg6 Mate attack) 14.Qg6 Kf8 (14...Rg7 15.Qg7) 15.Rh8# 1–0. combijack (1920) – chris_jz0pkr (1625), gameknot.com, 2013.

6.c5 Be7 7.d4 a6 8.Bd3= Nc6 (8...a5 9.b5+=) 9.Qc2 h6 (9...Ne4 10.Nf3=) 10.Nf3+= Nd7 11.e4 (better is 11.0–0+/–) 11...f6?? (better is 11...de4 12.Be4 Nf6=) 12.ed5+– ed5 13.Bh7 (better is 13.Nc3!? Rf7 14.Bh7 Kh8 15.Bg6+– (15.Nd5 Nf8+=)) 13...Kh8+/– 14.0–0 (14.Nbd2 Re8 15.0–0 Nf8+/–) 14...f5+= 15.Bf5 Nde5 16.Ne5 Bf5 17.Nc6 Bc2 18.Nd8 Rad8 19.Nd2 Rfe8 20.Rfe1 Bf6 21.g3 Kg8 22.h4 c6 23.f3 Kf7 24.Kf2 g6 25.Nf1 h5 26.Ne3 Ba4 27.Ng2 g5 28.Re8 Re8 29.Re1 (29.hg5 Bg5 30.Bc1 Bf6+=) 29...Re1= 30.Ke1 gh4 31.gh4 Bc2 32.Kf2 Bg6 33.Kg3 Bg7 34.Nf4 Kf6 35.Ne2 (35.Bc1 Bh6+=) 35...Bd3= 36.Nc3 Bh6 37.Kf2 Bd2 38.Na4 Bf5 39.Ke2 Bf4 40.Bc3 Bc7 41.Be1 Bc2 42.Nb2 Bf4 43.Bd2 Kf5? (43...Bh2 44.Bg5 Ke6 45.Nd3=) 44.Be3 (better is 44.Bf4!? Kf4 45.Kf2+/–) 44...Bg3 45.Bg5 Bf4? (better is 45...Bb3!?=) 46.Bf4+/– Kf4 47.Kf2 Bb1 48.Nd1 Bd3 49.Ne3 Bb5? (better is 49...Bg6!?+/–) 50.Ng2+– Kf5 51.Kg3 Kg6 52.Nf4 Kh6 53.Ne6 1–0. Barbarickiy,Yuri – Panchenko,Sergey, Championship Salekhard, 2007.

6.c5 Be7 7.Nf3 Nc6 8.Ne5 (8.d4 a5 9.b5 Na7+=) 8...Bd7 (8...Ne5 9.Be5 Nd7 10.Bg3+=) 9.Nd7= Qd7 10.Bb5 a6 11.Be2 Rfe8 12.d4 Bd8 13.0–0 e5 14.Nd2 e4 15.Bc3 Re7 16.a4 White plans b5 16...b6 17.cb6 cb6 18.b5 ab5 19.Bb5 (19.ab5 Ra1 20.Qa1 Na7=) 19...Bc7= 20.Bb4 (20.Rc1 Qd6 21.f4 ef3 22.Nf3+=) 20...Ree8?? (better is 20...Bh2 21.Kh2 Qc7 22.Kg1 Nb4–/+) 21.Rc1+/– Bd6?? (better is 21...Re6+/–) 22.Bc6+– (worse is 22.Rc6 Bb4 23.Rf6 Qd8+–) 22...Qd8 23.Be8 Qe8 (23...Bb4 24.Bb5 Rc8+–) 24.Bd6 Ra4 25.Be5 Nd7 (25...Ra8 26.Bf6 gf6 27.Qg4 Kh8+–) 26.Qa4 h6 27.Rc7 Ne5 28.Qe8 Kh7 29.Qe5 f6 (29...h5 30.Qh5 Kg8 31.Rc8#) 30.Qf5 (30.Qg3 b5 31.Qg7#) 30...Kh8 (30...Kg8 31.Ra1 b5 32.Ra8#) 31.Rc8# 1–0. rayzrating – pieeater, ChessWorld.net, 2012.

6.cd5 ed5 7.Nc3 a5 8.Nb5 =+.

6.cd5 ed5 7.Nc3 Nbd7 8.Bb5 (8.Nb5 Be7=+) 8...c6 9.Bd3 (9.Be2 b5=+) 9...Ne5–/+ 10.Bc2 (10.Be2 Nc4 11.Bc4 dc4=+) 10...g6 (10...d4!? 11.Na4 b5–/+) 11.Nge2. mgriffin (1765) – strainor, net–chess.com, 2001.

6.cd5 ed5 7.Nc3 Re8 8.Nf3 Bg4 (8...a5 9.ba5 Na6 10.Be2=+) 9.Be2 c5 (9...a5 10.b5=) 10.0–0 (10.bc5!? Bc5 11.Qb3=) 10...cb4=+ 11.ab4 Bb4 12.Nb5 (12.h3 Bf3 13.Bf3 Nc6=+) 12...Nc6 (12...Ne4!? 13.Nfd4 Be2 14.Qe2 Nd2–/+) 13.Bf6= gf6 14.Nfd4 Be2 15.Qe2 a6 16.Qg4 Kh8 17.Nc6 bc6 (17...ab5?? 18.Nd8 (18.Qb4?! bc6 19.Ra8 Qa8+=; 18.Nb4?! Ra1 19.Ra1 Re4+/–) 18...Rad8 19.Qb4+–) 18.Qb4 ab5 (18...cb5 19.Rfc1=) 19.Qc3 (19.Ra8 Qa8 20.Rc1 Rb8+=) 19...Qd6 20.Rfc1 (20.d4 f5=) 20...Ra1 (20...b4 21.Qc2=+) 21.Ra1 (21.Qa1 c5=) 21...b4=+ 22.Qb2 (22.Qc2 c5=+) 22...c5–/+ 23.d3 Qe5 24.Qb3?? (better is 24.Qc1–/+) 24...Qa1 (25.Qb1 Qb1) 0–1. wlittle (2300) – netcheck (2330), net–chess.com, 2004.

6.Nf3 c5 7.b5 b6 8.Bd3 Nbd7 9.Nc3 Bb7 10.Ne2? e5 11.Bf5 e4 12.Ng5 Be5 13.Be5 Ne5 14.d4 Nd3 15.Kf1 h6 16.h4 g6 17.Be4 de4 18.Nh3 Qc7 19.d5 Qe5 20.Nef4 Nb2 21.Qc2 Nc4 22.Rd1 Na3 23.Qb3 Nb5 24.Qb5 Nd5 0–1. Stapinski – Lewandowski, corr XVII Warszawa ch 1993–94.

5.c4 a5

6.ba5 Ra5=+ 7.Nf3. wlittle (2180) – coqui (2245), net–chess.com, 2004.

6.c5 Be7 7.Nf3 ab4 8.ab4 1–0. Bonatti,Aldo (1755) – Moen,Ketil (1785), corr WS/O/534 ICCF, 2012.

5.c4 b6

6.Qa4 Bd7 7.b5 c6 =+.

6.cd5 ed5 7.Qf3 Nbd7 8.Bb5 0–0 (better is 8...Bb7=) 9.Nc3 (better is 9.Bd7!? Nd7 10.Qd5+=) 9...Ne5 (9...c6 10.Bf1–/+ (10.Bc6? Ne5–+)) 10.Qd1 c6 11.Be2 Re8 (11...Nc4 12.Bc4 dc4 13.d3 cd3 14.Qd3=+) 12.d4 (12.Nf3 Nc4 13.Bc4 dc4=+) 12...Ng6 (12...Nc4 13.Bc4 dc4 14.Nf3–/+) 13.Bd3 (13.Nf3 b5=+) 13...Nf8 (13...Nf4!? 14.Bf1 Bf5–/+) 14.Nf3= Qc7 (14...b5 15.Qc2=) 15.Qc2 (15.Rc1 a6=) 15...a5 (15...Ng6 16.Ne2=) 16.b5 c5 17.dc5 bc5 (< 17...Qc5 18.Na4 Qc2 19.Bc2+/–) 18.0–0 (18.Rd1 Rb8=) 18...Bb7 (18...Bg4 19.Be2=+) 19.Na4= N8d7 (19...Ne4 20.Rfd1=) 20.Bf6 (20.Rfc1!? Ne4 21.Rab1=) 20...Nf6=+ 21.b6 Qc6 22.Rfb1= c4 (Black is in command) 23.Bf5 Re5 24.Ne5+/– Be5 25.Ra2 d4 26.f4+/– d3 27.Qd1 Bd6= 28.Rc1 Ba3 29.Rc4 Qc4 30.Ra3 Qd5 31.e4?? Qd4–+ 32.Kh1 Ne4 33.Be4 Qe4 34.Qd2 Rc8 35.h3 h6 36.Kh2 Qd4 37.Qd3 Qf4 38.Qg3 Qc1 39.Rc3=+ Qa1 40.Nc5 Bg2= 41.Qd3?? Qh1–+ 42.Kg3 Bf1 43.Qf3 Qg1 (44.Qg2 Qg2 45.Kf4 g5 46.Ke5 Qh2 47.Rg3 Qg3 48.Kd5 Rd8 49.Kc6 Qd6 50.Kb7 Rb8 51.Ka7 Qb6) 0–1. Bartsch – Garofalo,Pietro, corr DDR–ITA, 1982.

6.Qf3 a5 =.

6.Nf3 0–0=+ 7.cd5 Nd5 8.e4 Nf4 =.

6.Nf3 0–0=+ 7.Be2 Bb7 8.0–0 Nbd7 (8...dc4 9.Bc4 a5 10.b5=) 9.d3 (9.d4 dc4 10.Bc4 a5=) 9...c5 10.cd5 (10.b5 a6=) 10...Nd5=+ 11.b5 (11.bc5 Nc5 12.e4 Nf4–/+) 11...a6 12.d4 (12.Qa4 ab5 13.Qb5 Ra5=+) 12...ab5 (12...Qf6 13.Nc3 Qh6 14.e4 Nc3 15.Bc3=+) 13.dc5 Bc5 (13...Nc5 14.Bb5 f6 15.Bd4=+) 14.Bb5 N7f6 15.Qe2 Qe7 16.a4 (16.e4 Nf4 17.Qd2 Ng6=+) 16...Rfd8 17.Ne5 (17.Rd1 Ne4=) 17...Rac8 18.Nd2 Bb4 19.Ndf3 (19.Rfd1 Nc3 20.Bc3 Bc3–+ (20...Rc3?! 21.Ndc4=)) 19...Nc3 20.Bc3 Bc3 21.Rad1 Qc5 22.Rc1 Bf3 23.Nf3= Rd5 24.Rc2 Qb4 25.Rfc1 Rcc5 26.h3 Ne4 27.Bd3 Ng5 28.Ng5+= Rg5 29.Qf3 g6 30.Bb5 Kg7 31.e4 Bd4 32.Rc4 Rc4=+ 33.Rc4 Qe1 34.Kh2 Qf2 35.Qf2 Bf2 36.Rc2 Bd4 37.Rd2 Be5 38.Kh1 f5 39.ef5 ef5 40.Rd7=+ Kh8 41.Rd8 Kg7 42.Rd7 ˝–˝. Schmidbauer,Josef – Watzenberger,Stefan, Niederbayern–chT, 2001.

6.Nf3 0–0=+ 7.Be2 dc4 8.Bc4 a5 9.ba5 Ra5 10.Bc3 =+.

6.Nf3 c5 7.bc5 Bc5 8.d4 0–1. Fournier,Frederic (1975) – ClaimOFF (1850), Active (1/0), 2005.

6.Nf3 Nbd7 7.Nc3 0–0 8.Be2 c5 9.b5 Bb7 10.d3 e5 11.d4 e4 12.Nd2 cd4 13.ed4 Re8 14.Nb3 dc4 15.Bc4 e3 16.f3 Qc7 17.Qd3 Bh2 18.0–0–0 Rac8 19.Bf7 Kf7 20.Kb1 Bg3 21.Rc1 Qc4 22.Qc4 Rc4 23.Nd2 ed2 0–1. Rush – Sollars, email IECG 1995.

5.c4 dc4

6.Bc4 a5 7.b5 Nbd7 8.a4 b6 9.Nf3 Bb7 10.Nc3 0–0 11.Qe2 Qe7 12.0–0 Rad8 13.e4 Ne5 14.Ne5 Be5 15.d3 Nd7 16.f4 Bd4 17.Kh1 Nc5 18.f5 Kh8 19.Rf3 Qd6 20.Raf1 Nd7 21.Rh3 Bc8 22.g4 ef5 23.gf5 Qe5 24.Qd2 Nf6 25.Rg3 Bb7 26.Kg2 Rd7 27.Kh3 h6 28.Rfg1?? Bg1–+ 29.Rg1 Qc5 30.Qg2 Ne8 31.Nd5+= f6?? 32.Nf4+/– Qe3 33.Qg3 Qg3 34.Kg3 Kh7 35.Ng6 Rg8 36.Kf4 Nd6 37.Be6 Rgd8?? 38.Bd7 1–0. Tiller,B (2370) – Arvola,B (2140), Arctic Chess Challenge, Tromso NOR, 2009.

6.Bc4 b6 7.Qf3 c6 8.Bf6 Qf6 9.Qf6 gf6 10.Be2 Nd7 11.Nc3 Rg8 12.Bf3 Ne5 13.Ne4 Nf3 14.Nf3 Be7 15.Ng3 Bb7 16.Ke2 Ba6 17.d3 Rd8 18.Rhd1 c5 19.bc5 Bc5 20.Ne1 f5 21.f4 Ke7 22.Kf2 Bb7 23.d4 Bd6 24.a4 Bb4 25.Nd3 Bd6 26.a5 Rc8 27.Ne1 b5 28.Rdb1 a6 29.Rb2 Rc4 30.Ne2 Rgc8 31.g3 Rb4 32.Rd2 Rcc4 33.Nd3 Ra4 34.Rda2 Ra2 35.Ra2 Bd5 36.Nec1 Rc3 37.Rd2 Ra3 38.Rc2 Be4 39.Ke2 Kd8 40.Kd2 Ra5 41.Nc5 Bc2 42.Nb7 Kc7 43.Na5 Be4 44.Kc3 Kb6 45.Nab3 b4 46.Kb2 a5 47.Nd2 Bd5 48.Nd3 f6 49.Nb3 a4 50.Nbc5 a3 51.Kc2 Kb5 52.Nb3 Be4 53.Kd2 Ka4 54.Ndc5 Bc5 55.Nc5 Kb5 56.Nb3 a2 57.Kc1 Bd5 58.Na1 b3 59.h3 Kc4 60.Kb2 Kd3 61.g4 fg4 62.hg4 Ke3 63.g5 fg5 64.fg5 Kd4 65.Nb3 Bb3 66.Ka1 e5 (66...e5 67.Kb2 e4 68.Kb3 a1Q 69.Kc2 Qa2 70.Kc1 Kd3 71.g6 Qc2) 0–1. Buck,K1 (1835) – Wicklund Hansen,R (1890), TCh–Eur Seniors, Dresden GER, 2010.

6.Bc4 b6 7.Nf3 Bb7 8.0–0. Goldmund,Heike – Beeck,Tim, FICGS, 2015.

6.Bc4 Bd7 7.Nc3 0–0 8.Nf3 Re8 (8...a5 9.b5=) 9.0–0= a6 (9...a5 10.b5=) 10.d4 Bc6 (10...Nc6 11.Qc2=) 11.Re1 Nbd7 12.e4 Nb6 13.Bd3 Be7 (13...a5 14.b5 Bd7 15.e5+–) 14.Qc2 h6 (14...Bd6 15.Ne5 Be5 16.de5=) 15.Rad1 Ng4 (15...Bd6 16.Ne5 Bd7 17.f4+/–) 16.d5 (better is 16.Ne5!? Ne5 17.de5+/–) 16...ed5= 17.ed5 Bd7 (17...Nd5 18.Bh7 Kh8 19.Be4+–) 18.b5 (18.Bh7 Kh8 19.Bf5 Nc4+=) 18...ab5+= 19.Nb5 Rc8 20.a4 Nf6 21.Ne5 (21.Bf6 Bf6 22.Re8 Be8 23.Bh7 Kh8=) 21...Bb4 (21...Nbd5? 22.Nd7 Qd7 23.Bf5+–) 22.Nd7 Re1 (22...Be1 23.Nf6 gf6 24.Bf5+/–) 23.Re1+= Nbd7 (23...Be1 24.Nb6 cb6 25.Bf6 gf6 26.Qd1+=) 24.Rd1 Bc5 (24...Nc5!?+=) 25.Bf6+/– Qf6 1–0. Rohde,Friedhelm – Ralphs, corr 3GMM–28, 1995.

6.Bc4 Nbd7 7.Qc2 Ne5 8.Nf3 Nc4 9.Qc4 0–0 10.Qh4 Be7 11.Ng5 h6 12.Nf3 b6 13.Nc3 Bb7 14.Qg3 Qd3 15.Rc1 (better is 15.Qc7 Bf3 16.gf3+=) 15...Rad8 16.Nb1? (better is 16.Nd4 c5 17.bc5 bc5 18.Nb3–+) 16...Nh5 (better is 16...Ba6 17.Nc3 Ne4–+) 17.Qg4= (17.Qc7? Ba6 18.Nc3 Rd7–+) 17...Bf3 18.gf3 Bf6 19.Bf6 Nf6 20.Qg3 Rc8 21.Rg1 Attacking the backward pawn on c7 21...g6 22.Qe5 Nd5 23.Nc3 Rfd8 24.Rg4? (24.e4 Ne7 25.Qf4 Nc6+=) 24...Nc3?? (24...Nb4 25.Ne2 Nc2 26.Kf1 Na3–+ (26...Qd2?! 27.Rg6 fg6 28.Qe6 Kg7 29.Qe7 Kh8 30.Qf6 Kh7 31.Qf7 Kh8 32.Qf6 Kh7 33.Qf7 Kh8 34.Qf6=)) 25.Qc3+= Qf5 26.Rf4 1–0. combijack (1790) – donprez2 (1815), gameknot.com, 2011.

6.Bc4 0–0

7.Nc3 Nc6 8.d4 Bd7 (8...a6 9.Nf3=) 9.Nf3 a5 10.b5 Ne7 11.a4 (11.e4 Bf4+=) 11...Bb4 (11...Rc8 12.e4 Bf4 13.0–0=) 12.0–0+= c6 13.Qe2 Ned5 14.Rac1 Nc3 (14...Bc3 15.Bc3 cb5 16.Bb5=) 15.Bc3+= Be7 16.Rfd1 (16.Ne5 cb5 17.Nd7 Qd7 18.Bb5 Qd5+=) 16...cb5= 17.Bb5 b6 (17...Qe8 18.Rb1=) 18.Ne5 Bb5 19.Qb5 Ne4 20.Be1 Bd6 (20...Nd6!? 21.Qb3 b5+/–) 21.Nd7+– Re8 22.Nb6 Rb8+/– 23.Ba5 Qh4 24.Be1?? Qh2–/+ 25.Kf1 Qh1 26.Ke2 Qg2 27.a5 Ng3 28.Kd2–/+ Ne4 29.Kd3?? Qf1–+ 30.Ke4 Qb5 (31.Kf3 Qh5 32.Kg2 Red8–+) 0–1. C_D_B7 – fiddler, chessHere.com, 2006.

7.d4 a6 8.Nf3 Nc6 9.Nc3 Re8 10.0–0 e5 11.Ng5 Rf8 12.Qb3 Be6?? (better is 12...Qd7 13.d5 Ne7+=) 13.Be6+– (13.Ne6?! fe6 14.Be6 Kh8+–) 13...fe6 14.Ne6 (14.Qe6?! Kh8 15.Nf7 Rf7 16.Qf7 ed4 17.ed4 Nd4+–) 14...Qe7 15.Nc7 Kh8 16.Na8 Ra8 17.d5 Nd8 18.f3 e4 19.Ne4 Ne4 20.fe4 Nf7 21.Qc3 Qd7 (21...Ne5+–) 22.Qg7# 1–0. dont – goldenbear, Live Game Caissa's Web, 2004.

7.Ne2 Nbd7 8.0–0 a5 =+.

7.Ne2 Nbd7 8.Nbc3 Ne5 9.d3 Nc4 10.dc4= c6 (10...Bd7 11.c5 Be7 12.0–0=) 11.Qc2 Qc7 12.c5 Be7 (< 12...Bh2 13.g3 Ng4 14.Ne4+=) 13.Rd1 (13.Ne4 Nd5=) 13...e5 (13...a5 14.0–0=) 14.Ng3 (14.Ne4 Nd5=) 14...Be6 (14...Bg4 15.f3 Be6 16.Nf5=) 15.0–0 (15.Nce4 a5=) 15...Nd5 (15...b6 16.Nge4=) 16.Nce2 (16.Nf5 f6=) 16...Rad8 (16...a5 17.e4 Nf6 18.Qc3 ab4 19.ab4=) 17.Kh1 (17.Qe4 f6+=) 17...Nf6 (17...f5 18.Rde1=) 18.h3 (18.Nf5 Rd5=) 18...Rd1 (18...b5 19.Nf5 Bc4 20.f4 ef4 A) < 21.Ne7 Qe7 22.Bf6 Qf6=+ (< 22...gf6 23.Rf4 Qe3 24.Rg4 Kh8 25.Nd4+=); B) 21.ef4=) 19.Rd1 Rd8 20.Rd8 Bd8 21.Qc3 Qd7 (better is 21...Nd7!?=) 22.Qe5+/– Bc7 23.Qc3 Qd1= 24.Ng1 Bg3 25.fg3 Bd5 26.Qd4 Qd4 27.Bd4 Ne4 28.Kh2 Nd2 29.Bb2 Nf1–/+ 30.Kh1 Ng3 31.Kh2 Nf1 32.Kh1 Ne3 33.Nf3 Bf3 34.gf3 f6 35.Bc1 Nd5 36.Kg2 Kf7 37.Bd2 Ke6 38.Kf2 Ke5 39.h4 h5 40.Bc1 Nf4 41.Be3 Nd5?? 42.Bc1 Kd4 43.Ke2 Kc4 44.Kd2 Nf4 (45.Ke3 Ng2 46.Ke4 b6 47.cb6 ab6–+; 44...a5!? 45.ba5 Nf4 46.Ke3 Ng2 47.Ke4 Kc5 48.f4–+) 0–1. Ackermann,Robert – Schmitt,Harald, Kleve op, 1999.

7.Nf3 a5 8.b5 c6 9.Nc3 Nbd7 10.bc6 bc6 11.0–0 Ba6 12.d3 Bc4 13.dc4 Qc7 14.Qd3 Rab8 15.Qc2 Ng4 16.g3 Nge5 17.Ng5 Ng6 18.h4 Be7 19.h5 (19.Rab1!?+=) 19...Bg5–/+ 20.hg6 fg6 21.Ne4 Be7 22.Qc3 Bf6 23.Nf6 gf6 24.Rfd1 Nc5 25.Qc2 e5 26.a4 Rfd8 27.Ba3 Ne6 28.f3 e4! 29.f4 f5 30.Qc3 Qg7 31.Qa5 Rd3 32.Rab1?? Rb1–+ 33.Rb1 Ra3 34.Qa8 Nf8 35.Kg2 Ra2 36.Kf1 Qh6 (36...Qh6 37.Qf8 Kf8 38.Rb8 Ke7 39.Rb7 Ke6 40.Rh7 Qh7 41.Kg1 Qh2 42.Kf1 Qf2#) 0–1. Tiedemann,Joern (2125) – Scholz,Sascha (2205), RSX9E – A00 – Sokolsky–2, 2004.

7.Nf3 a6 8.d4 b6 9.0–0 Bb7 10.Nc3 Qd7 11.Qe2 Nc6 12.Rfd1 Rad8 (12...b5!? 13.Bd3 Rad8+=) 13.Ba6+/– Ba8 (13...Ba6 14.Qa6 Nd5 15.Qc4+/–) 14.Bd3 Nd5 15.Qc2 g6 16.Bb5 Qe7?? (better is 16...Qe8+–) 17.Nd5 ed5 18.Bc6 Bc6 19.Qc6 Qe6 20.Rdc1 g5 (20...Rfe8 21.b5+–) 21.Ng5 Qh6 22.Nf3 Rde8 (22...Rfe8 23.b5+–) 23.Qd5 Kh8 (23...Re6 24.Qg5 Qg5 25.Ng5+–) 24.Qf5 f6 25.a4 Re7 (25...Qg7 26.Bc3+–) 26.a5 Rg7 (26...Bb4 27.a6+–) 27.a6 Rfg8 28.g3 Bb4 29.a7 Ba5 (29...Ra8 30.d5 Be7 31.Rc7+–) 30.Ra5 (better is 30.d5 Rf8+–) 30...ba5 31.d5 Rf7 (31...c5 32.Qf6 Qf6 33.Bf6+–) 32.Rc6 (better is 32.Ng5 Rg5 33.a8Q Kg7+–) 32...Rgf8 (32...Re8 33.Ng5 Kg8 34.Nf7 Qh3 35.Qf6 Re5 36.a8Q Re8 37.Qe8) 33.Rf6! Rf6 (33...Qf6 34.Bf6) 34.a8Q! Ra8 35.Bf6 Kg8 36.Qe6 Kf8 37.Ne5 Qh5 (37...Qg7 38.d6 Qg3 39.hg3 cd6 40.Nd7) 38.Nd7# 1–0. Taulien,Hans_Juergen – Scheidgen,Hubert, remoteschach.de, 2003.

7.Nf3 c6 8.0–0 =.

7.Nf3= c6 8.Qc2 =.

7.Nf3= Nc6 8.0–0 a6 9.d4 =.

7.Nf3= Nc6 8.0–0 Re8 9.Qb3 (9.d4 a6+=) 9...Bd7 (9...a6 10.d4=) 10.d3 (10.d4 a6=) 10...Ng4 (10...a6 11.e4=) 11.d4 Ne7 (11...a6 12.Rd1=) 12.e4 Ng6 13.h3 Nh6 14.Bc1 Bf4 15.Nc3 Bc1 (15...a6 16.Rd1+=) 16.Rac1 c6 17.Rfd1 Qe7 18.a4 Rad8 19.e5 (19.b5 e5+=) 19...Nf4 20.Ne4+/– Nd5 21.Bd5 cd5 (Opening the c–file gets White a lot of play) 22.Nd6 Rf8 23.b5 Bc8 24.Qc3 Qd7 25.Qc7 Nf5 26.Qd7 (26...Bd7 27.Nb7+–) 1–0. Wlasow,Andrey (2220) – Howes,Tony, IECG, 2004.

7.Nf3= Nc6 8.Qc2 Bd7 =.

7.Nf3 Nbd7 8.0–0 Nb6 9.Be2 Bd7 10.Nc3 e5 (10...a5 11.b5=) 11.Qc2 (11.d4 e4 12.Nd2 Re8=) 11...Qe7 (11...a5 12.ba5 Ra5 13.d4 ed4 14.Nd4=) 12.d4 e4 13.Nd2 (13.Ne5 Bf5=) 13...Rfe8 14.Nc4 (14.Rfc1 a5=) 14...Nc4 15.Bc4 c6 16.Rfc1 a6 17.h3 Bc7 18.Bf1 (18.d5 Qd6 19.dc6 Qh2 20.Kf1 bc6=+) 18...Bf5 (18...h5 19.b5=+) 19.Rab1 (19.Na4 Nd5=+) 19...Qd6= 20.g3 Qe6 21.Kh2 h5 (21...Bd6 22.Na4=+) 22.Na4 Nd5 (22...h4 23.Nc5 hg3 24.fg3=+) 23.Nc5= Qg6 24.Kg1 (24.Nb7 h4 25.Qc6 hg3 26.Kh1 Qh7 27.fg3 Bh3–+) 24…h4 (25.g4 Bc8=+; 24...Ne3 25.fe3 Qg3 26.Qg2 Qe3 27.Kh1=+). Zmolil,Josef – Woelfelschneider,Peter, TT–12 ETC, 2004.

7.Nf3 Nbd7 8.0–0 e5 9.Qc2 =.

7.Nf3 Nbd7 8.d4 Qe7 9.Ne5 Ne5?? (Better is 9...a5=) 10.de5 +–. Woelfelschneider,Peter – Melia,Ken, T16–05.68, 2002.

7.f4 c5 8.bc5= Bc5 9.d4 Be7 10.Nf3 Qa5 11.Bc3 Qc7 12.Qd3 Nd5 13.0–0 (13.Bd2!?=) 13...Ne3!–/+ 14.Be6? (14.Qe3 Qc4) 14...Nf1–+ (14...fe6?! 15.Qe3 Qf4 16.Qf4 Rf4 17.Bd2=+; 14...Be6?! 15.Qe3 Nc6 16.Re1=+) 15.Bc8 Rc8 16.Kf1 Qf4 17.Nbd2 Nd7 18.g3 Qg4 19.Kg2 Nf6 20.h3 Qh5 21.g4 Qh6 22.g5 Nd5 23.gh6 Nf4 24.Kf1 Nd3 25.Ne4 f5 26.Nc5 gh6 27.Nd3 Rc3 28.Ke2 Ra3 29.Ra3 (29.Rg1 Kf7–+) 0–1. thotares (1645) – CODD (1770), internet, 2007.

7.f4 c6 8.Qf3 =+.

5.c4 c5

6.cd5 ed5 7.Bb5 (7.Bf6 Qf6 8.Nc3 cb4 (8...Be6 9.bc5 Bc5 10.d4 Bb6) 9.Nd5 Qe6 10.Nb4 a5; 7.bc5 Bc5 8.Bf6 Qf6 9.Nc3 Be6 10.d4 Nc6) 7...Nc6 (7...Bd7 8.bc5 Bc5 9.Qb3 0–0 10.Nf3 Nc6) 8.bc5 (8.Bc6 bc6 9.bc5 Bc5 10.Qc2 Qd6) 8...Bc5 9.Qc2 Qb6 (9...Be7 10.Bc6 bc6 11.Qc6 Bd7 12.Qa6=) 10.Bf6+= gf6 11.Nc3 a6? (better is 11...Be6!?+=) 12.Nd5+– (12.Nd5 Qd8 13.Qc5 ab5 14.Ne2+– (worse is 14.Qb5 Ra5 15.Qb2 Qd5 16.Qf6 Rg8–/+)) 1–0. Wall,Bill – Spartakus, Microsoft Gaming Zone, 1996.

6.cd5 Nd5 7.bc5 Bc5 8.Bb5 Nd7 9.Bd7 Bd7 10.Bg7 Rg8 11.Be5 Rg2 12.Nf3 Bb5 13.Bg3 Qf6 14.Nc3 Nc3 15.dc3 Qc3 16.Nd2 0–0–0 17.Rc1 Qa3 18.Ra1 Qb4 19.Ra2 b6 20.Qc2 Kb7 21.Rb2 Qa4 22.Qa4 Ba4 23.Nc4 Rd3 24.Kf1 Rg3 25.hg3 Rd1 26.Kg2 Rh1 27.Kh1 1–0. Nautiluschess – vade, ICS blitz, 2001.

5.c4 c6

6.c5 Bc7 7.Nf3 0–0 8.Be2 Nbd7 9.d3 Ng4 10.0–0 f5 (10...e5 11.Nbd2=) 11.h3+= Ngf6 12.Nbd2 (12.Nd4 Qe7+=) 12...e5 13.e4 fe4 14.de4 de4 (14...Qe7!?=) 15.Ng5 (15.Bc4 Nd5 16.Ne4 N7f6+/–) 15...Qe8 (15...Nb8!?+=) 16.Bc4+/– Nd5 17.Nge4 (better is 17.Nde4!? N7f6 18.Nf6 gf6 19.Bd5 cd5 20.Qd5 Kg7 21.Ne4+/–) 17...N7f6 18.Nd6 Bd6 19.cd6 Qd7? (better is 19...b5!? 20.Bb3 a5+=) 20.Be5+– Re8 (20...Qf7 21.Nf3+–) 21.f4 (21.Bf6 gf6 22.Qf3 Qd6+–) 21...b5+/– 22.Bb3 Qf5 (22...Kh8 23.Re1+/–) 23.Nf3+– Be6? (better is 23...Kh8 24.Nd4 Qd7+–) 24.Nd4 Qg6 (24...Qe4 25.Qe1 (25.Nc6?! Ne3 26.Be6 Re6+/–; 25.Ne6?! Re6 26.Re1 Qg6+–) 25...Bd7 26.Bf6 gf6 27.Qe4 Re4 28.Nb5+–) 25.Ne6 (better is 25.f5!? Bf5 26.Rf5 Kh8 27.Bd5 Nd5+–) 25...Re6 26.Bd5 (26.f5 Qh6 27.Bf6 Rd6+–) 26...cd5?! (26...Nd5 27.f5 Qg5 28.fe6 Qe3 29.Kh1 Qe5 30.Qf3 Qe6 31.Rac1+–) 27.Bf6 Rf6 (27...Rd6 28.Bd4 Re8+–) 28.Qd5 Qf7 (28...Kf8 29.Qa8 Qe8 30.Qe8 Ke8 31.Rae1 Kd8 32.Re7 Rd6 33.Ra7+–) 29.Qa8 Qf8 30.Qf8 (better is 30.Qd5 Kh8 31.d7 Rd6+–) 30...Kf8 (30...Rf8 31.Rac1 Rd8 32.Rfd1+–) 31.d7 (better is 31.Rfd1!? Rd6 32.Rd6 h5+–) 31...Ke7 32.Rad1 Kd8 33.Rfe1 Rf8 34.Re5 g6 35.Rb5 Kc7 36.Rc5 Kb8 37.d8Q (37...Rd8 38.Rd8 Kb7 39.Rd7 Kb6 40.Rdc7 a5 41.a4 ab4 42.R5c6 Ka5 43.Ra7) 1–0. maxii – Diggy, Live Game Caissa's Web, 2004.

6.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7 6.c4 c6).

5.d4 0–0

6.c4 c6 7.c5 Bc7 8.Bd3 Nbd7 9.Nf3 Re8 10.0–0 e5 11.de5 Ne5 12.Ne5 Be5 13.Qc2 Qc7 14.Be5 Qe5 15.Nd2 Bg4 16.Nb3 Rad8 17.Nd4 g6 18.Rae1 Qh5 19.f3 Bd7 20.Qf2 b6 21.cb6 (21.Qc2!?+=) 21...ab6= 22.Qg3 Qe5 23.Qe5 Re5 24.f4 Ree8 25.Nf3 (25.f5!? g5 26.Bc2–/+) 25...Ra8–/+ 26.Ne5 Ra3 27.Bc2 (27.Ra1!? Rea8 28.Ra3 Ra3 29.Rc1–/+) 27...c5–+ 28.bc5 bc5 29.h3 Bb5 30.Rf2 Nd7 31.Nd7 Bd7 32.e4 d4 33.e5 d3 34.Bb1 c4 35.Ba2? (35.Rd2–+) 35...c3 36.Bb1 (36.Bc4 d2 37.Rd1 Ba4 38.Rfd2 cd2 39.Rd2 g5 40.fg5 Re5–+) 36...Bf5 (36...d2!? 37.Rd1 Ba4 38.Rfd2 cd2 39.Rd2–+) 37.Bd3 Bd3 38.Kh2 c2 39.Rd2 (39.Rc1–+) 39...Rc8 40.Rc1 h5 41.h4 Bf5 (better is 41...Rb3!? 42.Rf2–+) 42.g3 (42.Re2–+) 42...Rb3 43.Kg2 Rb1 (43...Rb1 44.Rdc2 Rc2 45.Rc2 Bc2–+) 0–1. Trujillo Vasquez,Orlando – Guzman,Arcadio (1920), Bucaramanga COL, Senior Ch, 2013. (=1.d4 Nf6 2.e3 e6 3.a3 d5 4.b4 Bd6 5.Bb2 0–0)

6.c4 c6 7.c5 Be7 =.

6.c4 c6 7.Nf3 Nbd7 (7...dc4 8.Bc4 a5 9.b5=) 8.c5 Bc7 9.Nbd2 (9.Bd3 Qe8=) 9...Ne4 (9...b6 10.Bd3=) 10.Bd3+= f5 11.0–0 Rf6 (11...Qf6 12.Qc2+=) 12.Ne5 (12.a4 Rf7+=) 12...Rh6 (12...Ne5 13.de5 Rh6 14.Bd4=) 13.f4+= Ne5 Black terminates the opponent with strong threats 14.fe5 Qh4 Threatening mate... how? 15.Nf3 Qh5 16.a4 g5 17.g3 (17.h3 g4 18.Be4 de4 19.hg4 Qg4=) 17...g4+= 18.Nh4 Bd8 19.Rf2?? (better is 19.Be4 de4 20.Qe2+=) 19…Nf2–+ (19...Nf2 20.Kf2 Bh4–+) 0–1. Odachowski,Marian (1800) – Krzyzanowski,Antoni (2210), PolandchT14, 2001.

6.Nd2 a5 7.b5 (7.c4 dc4 8.b5 Bd7 9.Bc4 c6 10.bc6 Bc6 11.Ngf3; 7.ba5 Ra5 8.c4 b6 9.Bd3 Ba6 10.Ngf3 Qe7 11.0–0) 7...Nbd7 8.c4 (8.Ngf3 c5 9.dc5 Nc5 10.Be2 Qe7 11.c4) 8...c5 9.Ngf3 (9.cd5 ed5 10.dc5 Nc5 11.Ngf3) 9...cd4 (9...Qe7 10.cd5 ed5 11.dc5 Nc5 12.Be2=) 10.ed4 (10.Nd4 Nb6= (10...e5 11.Nf5) 11.cd5) 10...b6+= 11.Bd3 (11.Ne5+=) 11...Bb7 (11...Bf4 12.0–0=) 12.0–0 (12.Ne5 Qc7 13.Nd7 Nd7+=) 12...Bf4 (12...Qb8 13.h3+=) 13.g3 (13.Qe2 Rc8=) 13...Bh6+= 14.cd5 (14.Re1 Rc8+=) 14...Nd5 (14...Bd5 15.Ne5+=) 15.Nc4 N7f6 16.Nfe5 Rc8 17.f4 g6 18.Rc1 Bg7 19.Qe2 Ne7 20.Ne3 (20.g4 Nfd5=) 20...Rc1 21.Rc1 Nfd5 ˝–˝. Winiger,Albert (2340) – Skamper,Bernd (2285), RSS7E adv–7 remoteschach.de, 2004.

6.Bd3 a5 +=.

6.Bd3 Nbd7 7.Nf3 Qe7 8.Nbd2 e5 9.de5 Ne5 10.Ne5 Be5 11.Be5 Qe5 12.Rb1 Bg4 13.Be2 Bf5 14.Nf3 (14.0–0!?=) 14...Qc3–/+ 15.Nd2 c6 (worse is 15...Qc2 16.Qc2 Bc2 17.Rc1+=) 16.Bd3 Bd3 17.cd3 Qd3 18.Rb3 Qg6 19.0–0 Rfe8 20.h3 Rad8 21.Nf3 Ne4 22.Nh4 Qe6 23.Nf3 h6 24.Re1 Re7 25.Nd4 Qf6 26.f3 Ng5 27.f4 (27.Qd3!?–/+) 27...Ne4–+ 28.Nf3 Nd6 29.a4 Nc4 30.g3 (better is 30.Qd4–+) 30...Rde8 31.b5 Re3 (31...Ne3 32.Qd3–+) 32.Rbe3 Re3 (32...Ne3?! 33.Qd2 cb5 34.Re3 Re3 35.Qe3+=) 33.bc6 (33.Re3 Ne3 34.Qb3 Qa1 35.Kf2 Nd1 36.Ke2 Nc3 37.Kf2 c5–+ (37...Na4?! 38.bc6 bc6 39.Qb8 Kh7 40.Qa7–+)) 33...Re1 34.Ne1 Qc6 35.Nd3 Nb6 36.a5 Nc4 37.Qe1 Qe6 (37...Qa4 38.Kf2–+) 38.Ne5? (38.Qe6 fe6 39.Nc5 Na5 40.Ne6–+) 38...f6 39.Qb4 (39.Nd3 Qe1 40.Ne1 Na5 41.Kf2–+) 39...fe5 40.fe5 (40.Qb7 ef4 41.Qb8 Kh7 42.Qb1 Qg6 43.Qg6 Kg6 44.gf4 Na5 45.f5 Kf5 46.Kf2–+) 40...Qe5 41.Qb7 Qg3 (41...Qg3 42.Kf1 Qh3 43.Kf2 Qe3 44.Kg2 Qd2 45.Kf3 Qa5 46.Qb8 Kh7 47.Qb1 g6 48.Qb7 Kg8–+) 0–1. pittol – davewolfe, gameknot.com, 2014.

6.Be2 a5–/+ 7.b5 Nbd7 (7...Ne4 8.Nd2+=) 8.Nf3 Nb6 (8...c5 9.dc5 Nc5 10.0–0=) 9.Nc3 (9.0–0 Na4 10.Ra2 Nb2 11.Rb2 Ne4+=) 9...c5 (9...a4 10.0–0+=) 10.Ne5 (10.dc5!? Bc5 11.0–0=) 10...Qc7 11.f4 cd4 (11...Bd7 12.0–0=) 12.ed4 (12.Qd4 Nbd7+=) 12...Ne8 (12...Rd8 13.0–0+=) 13.0–0= f6 14.Nd3 g6 (14...Nc4 15.Na4+=) 15.Qe1 Ng7 (15...Nc4 16.Bc1=) 16.Bg4 (16.Qg3 Nf5 17.Qf2 Nc4–/+) 16...a4 17.Qf2 (17.Qg3 Nc4=) 17...e5 18.Bc8 (18.Be2 e4 19.Nc5 Nf5+=) 18...Rac8 19.Kh1 (19.de5 fe5 20.Rae1–/+) 19...e4–/+ 20.Nb4 Bb4 21.ab4 Rfe8 22.Rfe1 Qc4 (22...Nf5–/+) 23.Na4–+ Na4 24.Ra4 Qc2 25.Qc2 Rc2 26.Ba1 (26.Bc1 Nf5 27.Ra7 Nd4–+) 26...Rec8 (26...Ne6 27.g3–+) 27.b6 (27.Ra7 Ne6 28.f5 Rc1–+) 27...Nh5 (27...Ne6 28.g3–+) 28.g3 Rf2 (28...Kf7 29.Ra7 Rb8 30.Kg1–/+) 29.Ra3 Rcc2–+ (29...Rcc2 30.h3 Rh2 31.Kg1 Rhg2 32.Kh1 Ng3 33.Rg3 Rg3–+) 0–1. Moeckel,Jean – Woelfelschneider,Peter, TT–05 TSC, 2003.

6.Nf3 a5 7.ba5 Nbd7 8.Bd3 =+.

6.Nf3 c6 7.c4 dc4 8.Bc4 b5 9.Bd3 Re8 (9...a5 10.Qb3=+) 10.Qc2 (better is 10.0–0=) 10...Nbd7?? (better is 10...a5=) 11.Qc6+– Nb6 12.Qb5 Bd7 13.Qa5 Nbd5 14.Qd8 Red8 15.Nc3 a5 16.ba5 Ra5 17.Ne2 Bb5 18.Kd2 Ng4 19.Rhf1 Bd3 20.Kd3 Rda8 21.h3 Ngf6 22.e4 Ba3 23.ed5 Nd5? 24.Ba3 Ra3 25.Ra3 Ra3 26.Ke4 Ra2 27.Nfg1 f5 28.Ke5 Kf7 29.Rb1 Nf6 30.Rb7 (30...Kg6 31.Nf4 Kh6 32.Ne6 Ra5 33.Nc5+–) 1–0. Diener,Rudolf – Zimmer,Georg, corr SOK–92–86, 1992.

5.d4 a5

6.b5 0–0 7.c4 b6 8.Nf3 Bb7 9.Nbd2 Nbd7 10.cd5 ed5 11.Be2 Ne4 12.0–0 Qe7 13.Re1 f6 14.Nb3 Qf7 15.Nc1 Rae8 16.Nd3 g5 (16...c5 17.bc6 Bc6 18.a4=) 17.Nd2 Qg7 18.Nf1 f5 19.Qc2 f4 20.f3 Nef6 21.ef4 gf4 22.Bd1 (22.Nf2 Rc8+=) 22...Nh5 (22...Re1 23.Ne1 Rc8 24.Qf5=) 23.Re8 Re8 24.Nf2 Kh8 25.Rc1 Nhf6 26.Qd2 Nf8 27.Nd3 Attacking the isolated pawn on f4 27...Ng6 28.Bc2 Bc8 29.Re1 Rg8 30.Re2 Nh4 31.Ne1 Bd7 32.Bd3 Nh5 33.Qc2 Qh6 34.Bc1 Ng7 35.Kh1 Ne6 36.Bb2 Bc8 37.Qd2 Ng5 38.Qc2 Qg7 (38...Ne6 39.Nd2+=) 39.Rf2 (39.Qc6 Bh3 40.Qd5 Ngf3=) 39...Bh3 40.Qe2 (worse is 40.gh3 Ngf3 41.Nf3 Nf3–+) 40...Bg2 41.Rg2 Ng2 42.Ng2 (worse is 42.Qg2 Qe7 43.Qd2 Ba3 44.Ba3 Nh3+=; 42.Kg2?? Nh3 43.Ng3 fg3–+) 42...Qf7 43.Qf2 Qh5 The isolani on f3 becomes a target 44.Nd2 Nh3 45.Qf1 Be7 46.Bc2 Bh4 47.Bb1? (better is 47.Qc1+=) 47...Bg3!–+ 48.Ne4 (48.hg3 Nf2 Double attack (48...Nf2 Decoy; 48...fg3 Passed pawn)) 48…Nf2!! (48...Nf2 49.Qf2 Qh2#; 48...de4 49.d5 Rg7 50.Bg7 Kg7 51.Nh4 Qh4 52.Qg2–+) 0–1. Alipov,Anatoli Al (2145) – Alikhanov,Felix (2340), Serpukhov–C, 2004.

6.b5 0–0 7.Bd3 +=.

6.b5 Ne4 7.c4 dc4 (7...Qh4 8.Nh3+=) 8.Bc4= 0–0 9.Qc2 f5 (9...Nf6 10.Nf3=) 10.Ne2 Qh4 11.g3 (11.Nec3 Qg4 12.0–0 Nc3 13.Nc3 f4+/–) 11...Qh6 (11...Qh5 12.Nd2 Nd2 13.Qd2=) 12.Nec3 Nc3 (12...Qh3 13.Ne4 Qg2 14.Rf1 fe4 15.Nd2+/–) 13.Nc3 Nd7 14.Bf1 (14.Rc1 Nb6 15.Bb3 Qg6+=) 14...b6 (14...Qg6 15.Bg2+=) 15.Bg2 Rb8 (15...Ra7 16.Rc1+=) 16.Rc1 (16.Na2 Bb7 17.Bb7 Rb7+–) 16...Bb7 17.Bb7 Rb7 18.0–0 Nf6 19.Rfe1 (19.Rfd1 Nd5+=) 19...Ng4 20.f4 Qg6 21.Qg2 Rbb8 22.e4 Rfd8 (22...Rbd8 23.Qe2+=) 23.Rc2 (23.h3 Nf6+=) 23...Rd7 (23...Rbc8 24.ef5 ef5 25.Qd5 Kh8 26.Re6=) 24.Rce2 Rbd8 (24...Re8 25.ef5 Qf5 26.Qc6+=) 25.ef5 (25.h3 Nh6+=) 25...ef5 26.Qc6 Qf7 27.Nb1 Qh5 28.Nd2 Re7 29.Nf3 Re2 30.Re2 Nf6 31.Qc4 Kh8 32.Ne5 Rf8 33.Re1 Ng4 34.Qe2 a4 35.Nc4 Be7+– 36.Bc1 Rd8 37.Ne5 Bf8 38.Bb2 Bd6 39.Nc6 Ra8 40.Rc1 Qf7 41.Ne5 Qb3 42.Rc3 Qd5 43.Qc4 The backward pawn on c7 becomes a target 43...Nf6 44.Nf7 Kg8 45.Nd6 cd6 46.Bc1 Qc4 47.Rc4 Ra5 48.Rb4 (48.Rb4 Ne4 49.d5=; 48.Rc6 Rb5 49.Rd6 Rb1+=). Baer,Werner – Hohlstein,Walter, TT–07 TSC, 2003.

5.d4 c6

6.Nd2 Ne4 7.c4 0–0 8.Ngf3 f5 (8...Nd2 9.Qd2 dc4 10.Bc4+=) 9.c5 Bc7 10.Ne5 (10.Bd3 b6=) 10...Nd7 11.f4 (better is 11.Be2=) 11...Qh4 (11...Qh4 12.g3 Ng3–/+) 0–1. Janek – Tundja, internet, 2017. (=1.d4 d5 2.a3 Nf6 3.b4 e6 4.Bb2 Bd6 5.e3 c6)

6.Bd3 0–0 7.Nf3 Qc7 8.Ne5 Nbd7 9.Nd7 Bd7 10.g3 (10.Nd2 b6+= (worse is 10...Bh2 11.g3+/–)) 10...Rfe8 11.0–0 e5 12.de5 Be5 13.Be5 Qe5 14.Nd2 b6 15.Nf3 Qe7 16.Re1 Bg4 17.Rb1? (17.Be2 Ne4+=) 17...Rab8 (17...Ne4 18.Be2 Nc3 19.Qd3 Nb1 20.Rb1–+) 18.c4 (better is 18.Be2!?+=) 18...Rbd8 19.Kg2?? (better is 19.cd5 Nd5 20.h3–+) 19...dc4 20.h3 (20.Bh7 Nh7 21.Qc2 Bf3 22.Kf3 Ng5 23.Ke2 Qf6–+) 20...Bh5 (20...Rd3 21.Qe2 Be6 22.Ra1–+) 21.g4 (21.Bh7 Nh7 22.Qc2 Bf3 23.Kf3 Ng5 24.Ke2 Qf6–+) 21...Bg6 (21...cd3?! 22.gh5 Qe4 23.b5–+) 22.g5 (22.Bg6 Rd1 (22...fg6?! 23.Nd4–/+; 22...hg6?! 23.Qa4–/+) 23.Bh7 Kh7 24.Rbd1 Ne4–+) 22...Rd3 23.gf6 (23.Qc1 Be4 24.Qc4 Nd7–+) 23...Qf6 (better is 23...Rd1 24.fe7 Rb1 (24...Bb1?! 25.Rd1 Bd3 26.Ne5 Re7 27.Nd3 cd3 28.Rd3+=) 25.Rb1 Bb1–+) 24.Qc1 (24.Qe2 Be4 25.Rg1–+) 24...Be4 25.Kf1 Qf3 26.Qc4 Rd2 27.Qf7 Kf7 28.Kg1 Qg2# 0–1. Gorniak,Weronika – Bartosiewicz,Julia, Mistrzostwa Miedzywojewodzkie Juniorek POL, 2012.

5.d4 Nbd7

6.c4 0–0= 7.c5 Be7 8.Bd3 (8.Nf3 a5 9.Bd3 c6 10.ba5) 8...Qe8 9.Nf3 a5 10.b5.

6.c4 0–0 7.Nf3 dc4 8.Bc4 Nb6 9.Nbd2 Bd7 10.Bb3 Bb5 11.Qc2 Qd7 (11...a5 12.ba5 Ra5 13.e4=) 12.Rc1 (12.e4!? Nh5 13.a4+/–) 12...Rfc8 13.Nc4 (13.Ne5 Qd8=) 13...Nc4 14.Bc4 Bc6 15.Ne5 Be5 16.de5 Nd5 (16...Bg2 17.Rg1 Be4 18.Qd1 Qd1 19.Rd1=) 17.0–0+= Ba4 18.Bb3 Bb3 19.Qb3 b5 20.Rfd1 Qe8 21.g3 (21.Bd4!?+=) 21…Nb6 ˝–˝. Williams,Barry M – Welsh,Craig, NZCCA HT corr New Zealand, 2004.

6.c4 a5 =.

6.c4 c6 7.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7 6.c4 c6 7.d4).

6.Bd3 0–0 7.Nf3 a5 (7...c6 8.0–0=) 8.c3 (8.b5 Qe8=) 8...e5+= 9.de5 Ne5 10.Ne5 Be5 11.Nd2 (11.Qc2 Re8+=) 11...Re8 12.Be2 (12.0–0 Ne4+=) 12...ab4 13.ab4 Ra1 14.Qa1 Ne4 15.Ne4 de4 16.0–0 Qh4 (16...Qd2 17.Bc4+=) 17.g3 Qf6 18.Rb1 Rd8 (18...Qc6 19.c4 Bb2 20.Qb2=) 19.Rd1 (19.c4 Bb2 20.Qb2 Qg5=) 19...Re8 (19...Bd7 20.Qa5=) 20.Rd2 (20.Rb1 Qg6+=) 20...Qe7 21.Qd1 (21.Rd1 Kh8=) 21...Bf5 22.c4 (22.Qb3 Ra8=) 22...Bb2+= (22...Qb4? 23.Rd8 Rd8 24.Qd8 Qf8 25.Qf8 Kf8 26.Be5+–) 23.Rb2 Rd8 (23...Ra8 24.Rd2=) 24.Rd2 Ra8 25.Qb3 (25.c5 b6=) 25...b6 (25...Be6 26.Qc3=) 26.b5 (26.c5 Be6 27.Qc3 bc5 28.bc5 Rb8=) 26...h6 (26...Ra1 27.Rd1 Qf6 28.Ra1 Qa1 29.Kg2=) 27.Qc3 Ra3 28.Qc2 ˝–˝. pascals1975 – byron_de (2170), ChessWorld.net, 2003.

6.Nf3 a5 7.b5 =+.

6.Nf3 Qe7 7.c4 (7.Bd3 a5=) 7...c6 (7...dc4 8.Qa4=) 8.Nbd2 (8.c5 Bc7=) 8...0–0 9.Qc2 (9.Bd3 b6=) 9...e5 10.Be2 (10.cd5 ed4 11.Bd4 cd5=) 10...e4=+ 11.Nh4 g6 (11...Qe6 12.0–0=+) 12.g3 (12.0–0 Ne8 13.g3 Qg5=) 12...Ne8 (12...Qe6 13.cd5 cd5 14.Rc1=+) 13.Bg4 (13.0–0 Qg5=) 13...f5 14.Be2 Ng7 (14...f4 15.ef4 Bf4 16.Rc1=+) 15.Qb3 (15.0–0 a5=) 15...Nf6 16.0–0–0 (16.0–0!?=) 16...dc4 17.Bc4 (17.Nc4 Be6 18.Qc2 Bc7–/+) 17...Be6 18.h3 (18.Ng2 a5 19.Nf4 Bf4 20.gf4 b5 21.Be6 Ne6–/+) 18...Nd5 19.Bd5 (19.b5 Rac8 20.Kb1 Qd7–/+) 19...Bd5–+ 20.Qc3 a5 21.ba5 Qf7 (21...Ne6 22.Ng2–+) 22.Kc2 (22.Rdf1 Qc7–+) 22...Ra6 23.Ra1 Rfa8 (23...g5 24.Ng2–+) 24.Nb3 (24.Kd1 Ra5 25.Ke1 Qd7–+) 24...Bb3 (24...g5!? 25.Ng2 Qe6–+) 25.Qb3–/+ Qb3 (25...Ne6 26.Kd1–/+) 26.Kb3 Ra5 ˝–˝. Diener,Rudolf – Graefrath, corr SOK–99–133, 1999.

6.f4 Ne4 7.Nf3 b6 8.Nbd2 Ndf6 9.Ne5 0–0 10.Bd3 Nd2 11.Qd2 c5 12.c3 c4 13.Bc2 Be5 14.de5 Ne4 15.Be4 de4 16.Qd4 Qd4 17.cd4 Bb7 18.Bc3 f6 19.0–0 f5 20.b5 a5 21.ba6 Ra6 22.Rfb1 Rfa8 23.Bb4 Bc6 24.Rc1 b5 25.Rc2 Ra4 26.Raa2 Bd5 27.Rab2 Bc6 28.Bc5 Kf7 29.h3 h6 30.Rc3 g6 31.g4 R4a6 32.Bd6 Rg8 33.Rg2 g5 34.gf5 ef5 35.fg5 hg5 36.Rcc2 Ke6 37.h4 g4 38.Rgf2 Rh8 39.Rh2 Be8 40.Kg2 Bh5 41.Kg3 Rg8 42.Rhf2 Rga8 43.Rc3 R8a7 44.d5 Kd5 45.Rf5 Be8 46.Rf8 Bd7 47.Rf6 Be6 48.h5 b4 49.Bb4 Ke5 50.Rf8 Rh7 51.Kh4 g3 52.Rc2 Bf7 53.Rf7 Rf7 54.Rc4 Rh6 55.Rc5+= Kf6 56.Rg5?? Ke6?? 57.Rg3 Rf5 58.Rg5 Rf3 59.Bc5 Rf1 60.Bd4 Rf5? 61.Kg4 Rf1 62.Ra5 Rh7 63.Re5 Kd6 64.Re4 Rg1 65.Kf3 Rh5 66.Rf4 Kd5 67.Kf2 Rg8 68.Ke2 Ra8 69.Bb2 Rh2 70.Rf2 Rh7 71.Kd3 Rd7 72.Rf4 Rb7 73.Rb4 Rh7 74.Rd4 Kc5 75.Rc4 Kb5 76.Rb4 Ka5 77.Bc3 Raa7 78.Rb7 Ka6 79.Ra7 Ka7 80.Bb4 Rh3 81.Kd4 Re3 ˝–˝. Woloszyn,Piotr (1660) – Prazmowski,Bartosz (1890), ch–city open–B, 2011.

6.c4 dc4

7.Bc4 a5 8.ba5 0–0 9.a6 +=.

7.Bc4 a5 8.b5 0–0 9.Nf3 c6 10.Nc3.

7.Bc4 e5

8.Qb3 0–0 9.Nf3 e4 10.Ne5.

8.Nd2 0–0 9.Ne2 a5 10.ba5.

8.Ne2 0–0 9.0–0 a5 10.b5.

8.Nf3 ed4 9.Nd4 (9.Bd4 Nb6 10.Bb6 ab6=) 9...Ne5 10.Be2 a6 (10...a5 11.Nb5=) 11.Qc2 (11.0–0 0–0=) 11...0–0 12.Nf5 (12.0–0 Be6=) 12...Re8 (12...Bf5 13.Qf5 g6 14.Qg5=) 13.Nd6 Qd6 14.Nd2 (14.Qc5 Qc5 15.bc5 Bg4=) 14...Bg4 15.Be5 (15.f3!? Be6 16.Qc5 Qc5 17.bc5=) 15...Qe5+= 16.Rc1 Be2 17.Ke2 a5 (17...Qb5 18.Ke1 Nd5 19.Rd1+=) 18.Qc7= Qh5 (18...Qd5 19.Rhd1=) 19.Nf3 (19.Ke1 ab4 20.ab4 b5+=) 19...ab4= 20.Rhd1?? (20.ab4 Qb5 21.Qc4 Ra2 22.Nd2 Qa4=) 20...Nd5?? (20...Qb5 21.Ke1 ba3 22.Rb1–/+) 21.Rc5?? (21.Qc5 Ra5!? 22.Qc8 Nc3 23.Rc3 Qb5 24.Ke1 bc3 25.Rd8–/+) 21...Nc7–+ 22.Rh5 ba3 23.Rc5 Ne6 24.Rb5 Rec8 (24...Nf4 25.Kf1 a2 26.Ra1+=) 25.Ne1 (better is 25.Rb7!? Nc5 26.Re7–/+) 25...Ra7 26.Ra1 Nc5 (26...Nc7 27.Rb6–+) 27.f3 (27.Ra2 Ne4 28.Kd3 Nc3 29.Ra3 Nb5 30.Ra7 Na7–+) 27...Kf8 (27...a2 28.Nd3 Nd3 29.Kd3–+) 28.Kd2 (28.Nd3 Nd3 29.Kd3 Rd8 30.Kc3 a2–+) 28...Ke7 (28...Rd8 29.Kc3 b6 30.Ra2–+) 29.Nc2 a2 30.Rb2 Rca8 31.Nb4 Rd8 32.Ke2 Rda8?? 33.Rba2 Ra2+= 34.Ra2 Ra2 35.Na2 Kd6 36.Kd2 b5 37.Nb4 Nd7 38.Kc3 Kc5 39.Nd3= Kc6 40.Kb4 f6 41.Nf4 Nb6 42.Ne6? Nd5–/+ 43.Kb3 Ne3 44.Ng7 Ng2 45.Nh5 f5 46.Nf6 Nh4 47.Nh7 Nf3–+ 48.h3 Kc5 49.Nf8 Nd4 50.Kc3 Ne2 51.Kb3 f4 52.Ne6 Kd5 Black gets the initiative 53.Ng5 Nd4 54.Kb4 Ne6 55.Nf3 Ke4 56.Ne1 Nd4 Black prepares the advance f3 57.Kc5 b4! 58.Kc4? Nc2!? 59.Nc2 Theme: Deflection from f3 59...f3 (59...f3 60.Nb4 f2–+) 0–1. Bott,Hans Joachim – Solomunovic,Igor (2330), Badenweiler op, 1994.

8.Nf3 e4 9.Ne5 0–0 10.0–0 =.

8.Nf3 e4 9.Ng5 0–0 10.Nc3.

6.Nd2 a5+=

7.ba5 A) 7...0–0 8.c4 (8.Ngf3 c5 9.Bc3 cd4 10.ed4) 8...Ra5 9.c5 Be7 10.Ngf3; B) 7...Ra5 8.c4 b6 9.Ngf3 Qe7 10.Ne5.

7.c4 0–0 8.c5= Be7 9.b5 c6 (9...Rb8 10.Qc2+=) 10.Rc1 Qc7 11.b6 Qb8 12.Bd3 (12.Be2 Re8+=) 12...e5= 13.Ne2 Ng4 (13...Re8 14.Ng3+=) 14.h3 (14.Ng3 Nh6+=) 14...Ngf6 (14...Nh6 15.e4+=) 15.0–0 Re8 16.Qa4 (16.Ng3 a4+=) 16...Nf8 (16...e4 17.Bc2+=) 17.Rfe1 (17.Ng3 Ne6+=) 17...ed4 (17...Ne6 18.de5 Nd7 19.Qc2=) 18.ed4 (18.Nd4 Ng6+/–) 18...Be6 (18...Ne6 19.Nb3+/–) 19.Rc3 N6d7 (19...Qd8 20.Bc2+/–) 20.Bc1 h6 (20...Nf6 21.Bc2+/–) 21.Nf3 Nf6 (21...Qd8 22.Bf4+/–) 22.Ng3 N8d7 23.Rc2 Bf8 24.Rce2 g5 (24...Qd8 25.Qc2+–) 25.h4 (25.Bd2 Qc8+–) 25...g4+/– 26.Nh2 h5 (26...Qc8 27.Qc2+–) 27.Bg5 Bg7 28.Qd1 Kh8 (28...Kf8 29.Qd2+–) 29.Qd2 Rg8 30.Bf6 Nf6 31.Re5 Re8 32.Nh5 Nh5 33.Rh5 Kg8 34.Rh7 Do you see the mate threat? 34...Qd8 35.Ng4! Bg4 Exploits the pin 36.Re8 A double attack 36...Qe8 37.Qg5 White intends h5 37...Qf8 38.Qg4 Re8 39.h5 Re1 40.Kh2 Re6 41.h6 Rh6 42.Rh6 Qe8 43.Rh7 Qf8 44.Kh1 f5 45.Bf5 Qe7 46.Rh5 Kf8 47.Bg6 Bf6 48.Qf5 Kg8 White now must not overlook the idea Bg7 49.Rh7 Qh7 50.Bh7 Kf7 51.Qg6 Ke7 52.Bg8 (52.Bg8 a4 53.Qf7 Kd8 54.Bh7 Be7 55.Bf5 Bc5 56.Qd7#) 1–0. Krasny,Henryk Jan – Laurent,Claude, corr TKM/A007, 2000.

7.c4 0–0 8.c5 Be7 9.Bd3 c6 10.Ngf3.

7.c4 0–0 8.Ngf3 dc4 9.Nc4 ab4 10.Nd6.

7.c4 ab4 8.c5 Be7 9.ab4 Ra1 10.Ba1 (10.Qa1=) 10...c6 11.Ngf3 0–0 12.Bd3 Qc7 13.0–0 b6 14.Nb3 Bb7 15.cb6 (15.Ne5 Ra8+=) 15...Qb6= 16.Nc5 Qb4 17.Nd7 Nd7 18.Qc2 Nf6 19.Rb1 Qa5 20.Rb7 Qa1 21.Bf1 Bd6 22.Rb6 Ra8 23.Rc6 Bf8 24.Qc1 g6 25.Bd3 Qc1 26.Rc1 Ra3 27.Bc2 Bd6 28.h3 Kg7 29.Kf1 h6 30.Rb1 Ra2 31.Bb3 Ra7 32.Bc2 Rc7 33.Bd3 Kf8 34.Rb8 Ke7 35.Ra8 Rb7 36.g3 Rb2 37.Ra7 Nd7 ˝–˝. Zednik,Martin – Hemzo,Miguel Angelo, Orang Utan Invitational, 2000.

5.Nf3

(--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3).

5...a5 6.b5 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 a5 5.b5 Bd6 6.e3).

5.f4 0–0

6.Be2 c5 7.Nf3 Nbd7 8.bc5 Bc5 9.0–0 Qb6 10.Qc1 Qd8 11.c4 b6 12.cd5 Nd5 13.d4 Bd6 (better is 13...Be7!?=) 14.Qc6+/– (14.Qc6 Qc7 15.Qa8+/–) 1–0. Jaeger,Eric – Kristensen,Benny (1945), corr WS/O/146 ICCF, 2007.

6.Nf3 a5 7.b5 Nbd7 8.Be2 Qe7 9.0–0 e5 10.fe5 Ne5 11.Nc3 Bd7 12.Nd4.

6.Nf3 a5 7.Nc3+= ab4 8.ab4 Ra1 9.Qa1 Bb4 10.Bd3 c5 11.0–0 Nc6 12.Ba3.

6.Nf3 c5 7.b5 a6 8.c4 dc4 9.Bc4 ab5 10.Bb5 Bd7 11.Nc3 Bb5 12.Nb5 Be7 13.0–0 Nc6 14.Ne5 Ne5 15.fe5 Nd5 16.a4 Nb4 17.d4 Qb6 18.Rc1 Ra4?? (better is 18...Qc6=) 19.Qa4+– 1–0. pierred (2755) – aleandy (2240), net–chess.com, 2013. (=1.f4 d5 2.b4 e6 3.Bb2 Nf6 4.a3 Bd6 5.e3 0–0 6.Nf3 c5)

6.Nf3 c5 7.b5 Bd7 8.a4 a6 9.Be2 ab5 10.ab5 Ra1 11.Ba1 c4 12.Nc3 Qb6 13.Qb1 Bc5 (13...Ne8 14.Qb2=) 14.0–0 d4 (better is 14...Bd6=) 15.Na4+/– (15.ed4?! Bd4 16.Nd4 Qd4 17.Rf2 Rd8=) 15...Qb5? (better is 15...Qa7 16.Nc5 Qc5 17.Nd4 Nd5+/–) 16.Qb5+– Bb5 17.Nc5 d3 18.cd3 cd3 19.Nd3 Rd8 20.Nd4 Ba6 21.Bc3 Nbd7 22.Rc1 Ne4 23.Ba5 Rb8 (23...Ra8 24.Ne5 Be2 25.Nd7+–) 24.Nf2 Nd2 (24...Be2 25.Ne4 Bd3+–) 25.Bd2 1–0. Janek – hobbyview, internet, 2016.

6.Nf3 c5 7.bc5 Bc5 8.d4 Bd6 9.Bd3 b6 10.Qe2 Bb7 11.0–0 Nbd7 12.c4 dc4 13.Bc4 Ne4 14.Ne5 Qe7 15.Nd2 f6 (better is 15...Rac8!? 16.Ne4 Be4=) 16.Nd7+= Qd7 17.f5 Qc7 18.Be6 Kh8 19.Nf3 Ng5 20.h3 (better is 20.Rfc1!? Qb8 21.Ng5 Bh2 22.Kh1 fg5 23.Qh5+/–) 20...Ne6= 21.fe6 Bd5 22.Rac1 (22.e4 Bc4 23.Qc2 Rac8=) 22...Qb7 23.Nh4 Be6 24.Qh5 (24.e4 Rfe8=) 24...Bf7 (24...Qe4!?–/+) 25.Qg4= Qd5 (25...Bd5!?=) 26.Nf5+= g6 (26...Bg6!?+=) 27.Nd6+/– Qd6 28.d5 (28.e4!? Be6 29.Qf3+–) 28...Bd5+= 29.Qh4 f6 seems the pivot of the position (better is 29.Qd4 Qe5 30.Rf6 Qd4 31.Bd4 (31.ed4?? Rf6 32.Bc3 Rc6–+) 31...Rf6 32.Bf6 Kg8 33.Rc7+/–) 29...Kg7? (29...Kg8 30.e4 Bb7 31.Bf6=) 30.Rcd1?? (better is 30.Rfd1 Qe6 31.Rd5 Qe3 32.Kh2+–) 30...Qe6= 31.Rf6 Rf6 (31...Qe3 32.Kh2 Kg8 33.Rd5+–) 32.Rd5 Qe3?? (better is 32...Raf8 33.Bf6 Rf6+=) 33.Kh2+– Raf8 (33...Qe6 34.Bf6 Kf7+–) 34.Rd7 1–0. craig4000 – whitecat25, ChessWorld.net, 2015.

6.Nf3 c6 7.Be2 (7.Bd3 a5 8.Nc3 ab4 9.ab4 Ra1 10.Qa1 Na6 11.b5 Nc5 12.0–0; 7.c4 c5 8.bc5 Bc5 9.Qc2 Bb6 10.Bd3 Nbd7 11.cd5 Nc5 12.Bf6; 7.Nc3 Nbd7 8.Be2 e5 9.f5 Qc7 10.g3 Nb6 11.0–0 Bf5 12.Rf2; 7.Bd4 Nbd7 8.Nc3 Qc7 9.Bd3 e5 10.Ne5 Ne5 11.fe5 Be5 12.Be5; 7.Be5 Be5 8.fe5 Ne4 9.Bd3 Nd7 10.0–0 Qc7 11.Qe2 Ne5 12.Be4) 7...Nbd7 8.0–0 Re8 (8...a5 9.Nc3 e5 10.Nb5 cb5 11.fe5 Ne5 12.Be5) 9.d4 (9.Bd4 e5 10.fe5 Ne5 11.Nc3 Nf3 12.Bf3) 9...Ne4 (9...a5 10.b5= h6 11.Nc3 c5 12.a4) 10.c4 (10.Nc3 Ndf6 11.Ne4 Ne4 12.c4) 10...dc4 (10...Ndf6 11.c5 Bc7 12.Ne5= 0.21/9 (12.Nfd2=)) 11.Bc4+= f5 (11...Nb6 12.Bd3) 12.Ne5 (12.Nbd2 Ndf6+=) 12...Ndf6 (12...Nb6 13.Bd3 Be5 14.de5+=) 13.Nd2 Kh8. Ustinov,Alexey (2190) – Krol,Dmitry V, Dmitrov RUS, Open, 2011. (=1.f4 d5 2.b4 e6 3.Bb2 Nf6 4.a3 Bd6 5.e3 0–0 6.Nf3)

6.Nf3 Qe7 7.c4 dc4 8.Bf6 Qf6 (worse is 8...gf6 9.Bc4 a5 10.b5=) 9.Nc3 c6 10.Bc4 Bd7 11.Ne4 Qe7 12.0–0 Bc7 13.Qc2 b5 14.Bd3 g6 15.Qc3 f5 16.Nc5 Bb6 17.Nd7 Nd7 18.Qc6 (18.Qc6 a6 19.Rfc1+/–) 1–0. b4_player – waldemar, internet, 2013.

6.Nf3 Nc6

7.b5 Na5 8.Ne5 (8.Bd3 c5=) 8...Be5 (8...Ne4 9.Qh5=+) 9.Be5 Ne4 10.Qh5 Nc4 (better is 10...f6 11.Bc3 Nc3 12.Nc3 Bd7=) 11.Bg7?? (better is 11.Bc4 dc4 12.Bd4=) 11...Kg7–+ 12.d3 c5?? 13.de4 Ne3–/+ 14.Qe2 Qa5 15.Kf2= Nc4 16.e5 Qb5 17.Nd2 b6 18.Nc4= Ba6?? 19.Nd6 Qa4 20.Qa6?? Qf4–+ 21.Ke1 Qe5 (22.Kd2 Qa1–+ (22...Qd6?! 23.g3=)) 0–1. cucumber (2305) – gautamg, net–chess.com, 2001.

7.c4 dc4 8.Bc4 Be7 (8...Re8 9.0–0=) 9.Nc3 e5 (better is 9...a6!?=) 10.fe5+/– Ng4 11.Ne4 Bf5 12.Qc2 b6 (12...Kh8 13.0–0+/–) 13.Nf6 (better is 13.0–0+–) 13...Nf6?? (better is 13...Bf6 14.Qf5 Nce5 15.Be5 Ne5 16.Ne5 Be5 17.Qe5 Qh4 18.Qg3 Qc4=) 14.Qf5+– Nd7 (14...Nd5 15.0–0 Nb8 16.e4 Nb4 17.ab4+–) 15.0–0 Kh8 (15...a5 16.e6 Bf6+–) 16.Bd3 Nde5 (16...g6 17.Qd7! Qd7 18.e6 f6 19.ed7 Rad8+–) 17.Qh7 1–0. Krambambuli – blanco2003, ChessWorld.net, 2016.

7.c4 Bd7 8.Qc2 =.

7.Bd3 Qe7 8.b5 Na5 9.Nc3 a6 10.Qe2 c5 11.bc6 Nc6 12.0–0.

7.Be2 a6 =.

7.Be2 Bd7 8.0–0 a5 9.b5 Ne7 10.Bf6 gf6 11.Nc3 Ng6 12.f5.

6.Nf3 Nbd7

7.c4 b6 8.d4 Bb7 (8...c5 9.Bc3+=) 9.c5= Be7 10.Bd3 c6 11.0–0 a5 12.Nc3 b5 (12...ab4 13.ab4 Ra1 14.Qa1=) 13.ba5 (13.Ne5 ab4 14.ab4 Ra1 15.Qa1 Qe8+=) 13...Ra5= 14.Na2 (14.Ne5 Qc7=) 14...Qc7 15.Nb4 Rfa8 Attacking the isolated pawn on a3 16.Ne5 Bf8 17.Qf3 g6 18.g4 Bg7 19.Rad1 Rf8 20.h4 (20.g5 Nh5=) 20...Raa8 21.Qh3 Ne5 22.fe5 Ne4 23.Be4 de4 24.g5 h6 25.h5 (25.Qg4 hg5 26.Qe4 gh4 27.Qh4 Qd8+=) 25...Qe7 (worse is 25...hg5 26.hg6 fg6 27.Qe6 Kh7 28.Qg4+/–) 26.Rf6 (26.gh6 Qg5 27.Kh2 Qh6 28.hg6 fg6 (worse is 28...Qg6 29.Rf4 f5 30.ef6 Rf6 31.Rg1+/–) 29.Rf8 Rf8=) 26...Kh7 27.Rd2 Rh8 (27...Bf6 28.ef6 Qc7 29.hg6 Kg6 30.Qh6 Kf5 31.Rf2 Kg4 32.Rg2 Qg3 33.Rg3 Kg3+–) 28.hg6+/– fg6 29.Re6 Qg5? (better is 29...Qd7 30.Rh2 h5+/–) 30.Rg2+– Qf5? (30...Qd8+–) 31.Qf5 gf5 32.Re7 (32.Nc6?! Rhg8+–) 32...Rhg8 33.Rb7 Rac8 34.d5 (34.d5 cd5 35.Nd5+–) 1–0. Sternik,Ryszard – Bakkers,Max, corr SOK–90–57, 1990.

7.c4 dc4 8.Bc4 Nb6 9.Be2 =+.

7.c4 c5 8.b5 Nb6 (8...a6 9.Qc2+=) 9.Qc2 Bd7 10.Ng5 g6 11.Qc3 (11.a4 a6+=) 11...d4 (11...Be7 12.a4+=) 12.Qc2 (12.Qb3 h6 13.Nf3 de3 14.de3 a6=) 12...e5 (12...a6 13.ed4 cd4 14.Bd4 Bf4 15.Nf3+=) 13.fe5 Be5 14.ed4 (14.Nf3 Ng4 15.Ne5 Ne5 16.ed4 cd4 17.Bd4 Re8–/+) 14...Bf4 (14...Bd4!? 15.Bd4 Bf5–/+) 15.Nf3= (15.dc5 Re8 16.Be2 Bf5 17.Nh7 Kh7 (17...Bc2?! 18.Nf6 Kf8 19.Nh7 Kg8 20.Nf6 Kf8 21.Nh7 Kg8 22.Nf6=; 17...Nh7?! 18.Qc3 Be5 19.Qe5 Re5 20.Be5 Nc4 21.Bc3–+) 18.Bf6 A) 18...Bc2 19.Bd8 Rad8 20.cb6 Bb1 A1) 21.ba7 Rd2 22.Rb1 Ree2 (worse is 22...Rde2 23.Kf1 R2e6 24.g4–+) 23.Kf1 Rf2 24.Ke1 Rde2 25.Kd1 Re8–+; A2) 21.Rb1 Rd2 A21) 22.ba7? Ree2 (22...Rde2?! 23.Kf1 R2e6 24.g3–+) 23.Kf1 Rf2 24.Ke1 Rde2 25.Kd1 Re8–+; A22) 22.0–0 Ree2 23.Rf4 Rg2 24.Kf1 Rh2 25.Ke1+= (25.Rf7? Kg8 26.Kg1 Rdg2 27.Kf1 Kf7 28.ba7 Rc2–+); B) 18...Qf6–+) 15...Qe7 16.Be2 Rfe8 Do you see the mate threat? 17.0–0?? (17.Nc3 Bf5 18.d3 Nc4 19.dc5 Qc5 20.Na4–+) 17...Qe2–+ 18.Re1 (18.Nc3 Qc4 19.d3–+) 18...Bh2! (worse is 18...Qc4 19.Re8 Re8 20.Qc4 Nc4 21.Bc3–+) 19.Kh2 Decoy to h2 (19.Nh2 Theme: Deflection from e1 19...Qe1 Eliminates the defender e1) 19...Ng4 (19...Qc4?! 20.Qc4 Nc4 21.Re8 Re8 22.Bc3 cd4 23.Bd4 Ng4 24.Kg3–/+) 20.Kh1 (20.Kh3 Ne3 21.Kg3 Qg2 22.Kh4 Qg4) 20…Qe1 (20...Qe1 21.Ng1 Qh4 22.Nh3 Re1) 0–1. Simoncini,M – Lorinczi Retek,Pedro (2205), Thessaloniki ol (Men), 1984.

7.c4 c5 8.bc5 Nc5 9.Nc3 Bd7 10.Ne5 Be5 11.fe5= Nfe4 12.g3 Bc6–/+ 13.Ne4 Ne4 (Black fights for the initiative) 14.Rg1 Qa5 15.Qc2 dc4 16.Bg2 Ng5 17.h4 Bg2–+ 18.hg5 Bd5 19.a4 Rac8 20.Rf1 Qd8 21.e4 Bc6 22.Qc4 Qg5–+ 23.Rf3 Rfd8 24.Re3 Qh6 25.Qe2 b6 26.d3–/+ b5 27.ab5 Bb5 28.Rf3 Rc7 29.Rd1 Ba4 30.Rd2 Rdc8 31.Rf4 Rc2 32.Ba3 a5 (33.Rc2 Rc2–+ (33...Bc2?! 34.Rf2–/+); 32...Qg5 33.Qg4 Qe5 34.Bd6 Qa1 35.Qd1–+) 0–1. Villar,Nelson Alvarez – Woelfelschneider,Peter, TT–16 ETC, 2005.

7.c4 c6 8.Nc3 b6 9.Rc1 (9.cd5 ed5 10.Be2 a5=) 9...Bb7+= 10.cd5 cd5 (better is 10...ed5!? 11.Bd3 a5+=) 11.Nb5+= Bb8 12.Bd3 a6 13.Nbd4 Bd6 14.0–0 Rc8 15.Qe2 b5 16.Ng5 (16.Nb3 Rc1 17.Rc1 Qb8+=) 16...Rc1 17.Rc1 Qa8 18.Nde6 (18.Qe1!?+=) 18...fe6+= 19.Ne6 (19.Qf3 Rc8 20.Rd1 d4+=) 19...Rc8 20.Rf1 Re8 21.Bf5 g6 22.Bh3 Bc8 (22...Re7!?+=) 23.f5= gf5?? (23...Qb8 24.fg6 Bh2 25.Kh1+=) 24.Bf5?? (24.Qf3 f4 25.Nf4 Ne5 26.Qg3 Ng6 27.Bf6 Bh3 28.Qh3 Bf4+–) 24...Be5?? (24...Ne5 25.Qf2 Be6 (25...Re6?? 26.Be6 Be6 27.Qf6+–) 26.Qg3 Kf7 27.Bh7 d4 28.Bd4 Bc4=) 25.Qf2 (better is 25.Be5!? Ne5 26.Nc7+–) 25...Qb8 26.Qh4 Kf7 27.Nd4 Qd6 28.Bh7 Nf8 29.Bd3 Ke7? 30.Rc1 Bd7?? 31.Rc6!!+– Bh2 32.Kh1 Bg3 33.Qg5 Ne6 34.Nf5 (34.Nf5 Kd8 35.Bf6 Re7 36.Be7 Qe7 37.Qe7) 1–0. Ackermann,Robert (1845) – Petersammer,Georg (1675), 9th Mittelfranken–ch HT, 2000.

7.Bd3 a5 8.b5 Qe7 (8...c5 9.0–0 (9.Be2 Qb6 10.0–0 Rd8 11.c4 a4 12.Qc2=; 9.a4 Qc7 10.0–0 Re8 11.Qe1 e5 12.fe5+=) 9...c4 10.Be2 a4 11.Bd4 Re8 12.d3=) 9.0–0 (9.Be2 e5 10.fe5 Ne5 11.0–0 Re8 12.Bd4+=) 9...e5 10.Nh4 (10.fe5 Ne5 11.Ne5 Be5 12.Be5=) 10...g6 (10...Nc5 11.fe5 Be5 12.Be5=) 11.fe5 Ne5 12.Nf3 (12.Be2=) 12...Bg4 13.Be2 Rae8 14.Nc3 Bf3 15.gf3 Ned7 16.f4 Bc5 17.Kh1 Nb6 18.Bd3 c6 19.Qf3 Ne4 20.Qg2 f5 21.Ne4 fe4 22.Be2 Na4 23.Be5 Bd6 (worse is 23...Ba3 24.Rfb1+/–) 24.Bd6 Qd6 25.Rab1 c5 26.f5 Kh8 27.fg6 Qg6 28.Qh3 Qd6 29.Bh5 Rf1 30.Rf1 Rf8 31.Bf7 Nb6 32.Rf5 Qe7 33.Qf1 (33.Bd5?! Nd5 34.Rd5 Qf6=) 33...Nc4 34.Bd5 Rf5 35.Qf5 Nd6 36.Qf4 Kg7 37.b6 h5 38.Qg3 Kh6 39.d3 Qf6 40.Kg1 ed3 41.cd3 Nc8 42.Bb7 Nb6 43.Bg2 h4 44.Qg4 Qa1 45.Kf2 Qa2 46.Kf3 Qf7 47.Qf4 Qf4 48.Kf4 Kg6 49.e4 Kf7 50.Bh3 Ke7 51.Ke5 c4 52.Kd4 cd3 53.Kd3 Na4 54.Bf5 Nb2 55.Kd4 Nd1 56.e5 Nf2 57.Kc5 Nd1 58.e6 Nc3 59.Kb6 a4 60.Ka5 Kf6 61.Bh3 Ke7 62.Kb4 Ne2 63.Ka4 Kd6 64.Kb5 Nf4 65.Bf5 Nd5 66.a4 Nc3 67.Ka5 Nd5 68.Ka6 Kc7 69.Be4 Nc3 70.e7 Kd7 71.Bc6! Ke7 72.a5 (72.a5 Kd6 73.Kb7+–) 1–0. Baer,Werner – Buczinski,Henryk, corr TT–19, 2006.

7.Bd3 c5 8.bc5 Nc5 9.Be2 b6 10.0–0 Ba6 11.Ba6 Na6 12.Nc3 =.

7.d4 a6 8.c4 c6 9.Qc2 Ne4 (9...dc4!? 10.Bc4 Nb6+=) 10.c5 Bc7 11.Bd3 f5 12.g3 Ndf6 13.Ne5 Bd7 14.Qg2 a5 15.0–0 ab4 16.ab4 Ra1 17.Ba1 Qe8 18.Rc1 Be5 19.de5 Ng4 20.Bd4 Qg6 21.Nd2 h5 (21...Ngf2!? 22.Be2 Ra8=) 22.Ra1+/– Kh7 23.Nf3 Qe8 24.Ra2 Qe7 25.Ra7 Rb8 26.h3 Nh6 27.Nh2 g5 28.Be4 de4 29.Qa2 gf4 30.ef4 Be8 31.Kf2 Qd7 32.Be3 Ng8 33.g4 Ne7 34.g5 Nd5 35.Qd2 Rd8 36.Nf1 Qc8 37.Bd4 (better is 37.Qb2!?+=) 37...Nc7+= 38.Ra5 Nb5 39.Rb5 cb5 40.h4 Qc6 41.Qb2 Qd5 42.Be3 Qd1 43.Qe2 Qe2 44.Ke2 Bc6 45.Ng3 Kg6 46.Kf2 Bd5 47.Ne2 Bc4 48.Nd4 Ra8 49.c6 bc6 50.Nc6 Kf7 (better is 50...Ra2!? 51.Kg3 Bf1–+) 51.Nd8 0–1. Stolzenwald,Frank – Moeller,Fritz, Hamburg League qual, 2004.

7.Be2 a5 8.b5 a4 =.

7.Be2 a5 8.b5 c5 9.0–0 Qc7 10.Qe1 e5 11.fe5 Ne5 12.b6 Qb8 13.Be5 Be5 14.Ne5 Qe5 15.Nc3 Bf5 16.Bd3 Bd3=+ 17.cd3 Rac8 18.Nb5 c4 19.Nd4 cd3 20.Qb1 Ng4 21.Nf3 Qe4 22.h3 Nf6 23.Nd4 Nh5 24.Qb5= Ng3 25.Rf4 Qg6 26.Rg4 Qd6 27.Qd3 Qe5 28.Rb1+= Rfd8 29.Rf4 Ne4 (29...Rc4 30.Nf3 Qe7 31.Rc4 dc4 32.Qc4 Qa3 33.Qc7+/–) ˝–˝. Baumann,Heinz – Woelfelschneider,Peter, TT–17 ETC, 2005.

7.Be2 c5 =.

7.Be2 Qe7 8.0–0 =.

5.f4 Nbd7

6.c4 dc4+= 7.Bc4 a5 8.ba5 e5 9.Ne2 +=.

6.c4 dc4 7.Bc4 e5 8.Ne2 +=.

6.c4 dc4+= 7.Bc4 e5 8.fe5 Ne5 9.Be2 (9.Be5 Be5 10.d4+=) 9...Ne4 (better is 9...0–0+=) 10.Qa4?? (10.Nf3!? Qf6 11.Nc3=) 10...c6 (better is 10...Bd7!? 11.b5 Bf5–+) 11.b5–/+ Bf5 (11...Nc5 12.Qc2 g6 13.Be5 Be5+/–) 12.bc6–+ 0–0?? (better is 12...bc6!? 13.Bc3 Rb8–+ (13...Nc3?! 14.Nc3 Qg5 15.g3=)) 13.Qd4 (13.cb7 Rb8 14.Qd4 Rb7+=) 13...Qg5 (13...bc6 14.Nc3 Nc5–+) 14.Nc3?? (14.cb7 Rad8 15.Nf3 Qg2 16.Rf1–/+) 14...Qg2–+ 15.0–0–0 (15.Ne4 Qh1 16.Qd6 Qg1 17.Bf1 Nf3 18.Ke2–+) 15…Nc4 (15...Nc4 16.Bc4 Bc5+–; better is 15...Nc5 16.Bc4 Nc4 17.Qc4 Nd3 18.Qd3 Bd3–+ (18...Qh1 19.Qd6 Qc6 20.Qc6 bc6 21.Nge2+=)) 0–1. Schiffler,L – Heilemann,Paul G, corr Dyckhoff Memorial, 1954.

6.c4 c5 7.bc5 Nc5 8.Nf3 0–0 9.Be2 (9.Nc3 b6=) 9...dc4+= 10.Bc4 b6 (10...a6 11.d4 Nce4 12.Bd3+=) 11.0–0 (11.Nc3 Bb7+=) 11...Bb7 12.Ne5 (12.d4 Nce4+=) 12...Rc8 13.Ng4 (13.Nc3 a6+=) 13...Be7 (13...Nd5 14.Nh6 Kh8 15.Qh5+=) 14.Ne5 (14.Bf6 Bf6 15.d4 Ne4 16.Nf6 Qf6+=) 14...Nd5 (14...Bd5 15.Bd5 Nd5 16.Qg4+=) 15.Rf3 (15.Qg4 f6 16.Nd3 Rf7+=) 15...f6–/+ Black is in command 16.Ng4 (16.Nd3 b5 17.Nc5 Bc5+=) 16...Qd7 17.Rh3 (17.Qe2!?–/+) 17...Na4–+ 18.Bd3 g6 (18...f5 19.Nh6 gh6 20.Rg3 Bg5 21.Be5–/+) 19.Rh7 Nf4! (worse is 19...Kh7 20.Ne5 Nf4 21.Nd7 Nb2 22.Nf8 Bf8 23.Bg6 Ng6 24.Qh5 Kg7 25.Nc3=; 19...Nb2?? 20.Bg6 Rf7 21.Rf7+–) 20.Bg6 (20.ef4 Nb2 Eliminates the defender b2) 20...Ng6 21.Nf6 Rf6 (21...Bf6 A pinning theme 22.Rd7) 22.Bf6= Qd3 23.Rg7 Kf8 24.Nc3 Nc3 25.dc3?? Qe3–+ 26.Kh1 Qe4 27.Qf1 Qg2! 28.Qg2 A pinning theme 28...Bg2 29.Kg2 Nf4 30.Kh1 Bf6 31.Ra7 Rc3 32.Rf1 e5 33.a4 Be7 34.a5 ba5 35.Ra5 Bc5 36.Ra4 Bd6 37.Ra7 Bc7 38.Ra6 Ke7 39.Rh6 Bd6 40.Rb1 e4 41.Rb7 Bc7 (41...Bc7 42.Rh7 Kd6–+) 0–1. Schiffler,L – Maricic,Ivan, corr Dyckhoff mem–B corr5456, 1954.

6.Nf3 0–0 (--> 5.f4 0–0 6.Nf3 Nbd7).

6.Nf3 c5 7.b5 0–0 8.Be2 b6 9.0–0 Bb7 10.Ne5 Qc7 11.d4 (11.Nd7 Nd7 12.c4 d4=) 11...Ne4 12.Nd7 Qd7 13.Nc3 Nc3 14.Bc3 c4 15.Qb1 a6 16.ba6 Ra6 17.Bb4 Rfa8 18.Qb2 Qc6 19.c3 Qd7 20.Bg4 Qe7 21.g3 Bc6 22.h4 f5 23.Bf3 Bb4 24.ab4 Qd7 25.Ra6 Ra6 26.Ra1 Ra1 27.Qa1 Ba4 28.Kg2 g6 29.h5 Kg7 ˝–˝. pierred (2755) – cristero (2465), net–chess.com, 2014. (=1.f4 d5 2.b4 Nf6 3.Bb2 e6 4.a3 Bd6 5.e3 Nbd7)

6.Nf3 c5 7.bc5 Nc5 8.Be2 b6 9.0–0 0–0 10.c4 dc4=+ 11.Bc4 Ba6 12.Ba6= Na6 13.Nc3 Nc5 14.d4 Nce4 15.Ne4 Ne4 16.Rc1 Rc8 17.Rc8 Qc8 18.Qc1 Qd7 19.Ne5 Be5 20.fe5 Rc8 21.Qd1 Qd5 22.a4 Nc3 23.Qc2+/– Qe4 24.Qf2 Rc7?? 25.Bc3+– (25...Qc6 26.Qh4+–) 1–0. Eralos (2020) – zorrocain (1930), ajedrez21.com, 2001.

4...Bd7

5.c4 Be7 6.Nf3= 0–0 (6...a5 7.b5=) 7.c5 (7.Qc2 Re8=) 7...a6 (7...a5 8.Ne5=+) 8.Nc3 (8.Qc2 Ne4=) 8...Nc6 (8...a5 9.Ne5=) 9.Be2 (9.d4 a5 10.b5 Na7+=) 9...e5= 10.d4 e4 11.Nd2 (11.Ne5 Na7=) 11...Bf5 12.0–0 Qd7 13.Rc1 Rad8 (13...Qe6 14.Rb1=) 14.f3 (14.Rb1 Qe6=) 14...ef3=+ 15.Nf3 (15.Rf3 Qe6=+) 15...Ne4 (15...Qe6 16.Qd2=+) 16.Bd3 (16.Ne4 de4 17.Nd2 Bg5=) 16...Bg6 (16...Qe6 17.Kh1=+) 17.Nd2 (17.Qc2 Qe6=) 17...Nc3 (17...Ng3 18.Bg6 Nf1 19.Bh7 Kh7 20.Qh5 Kg8 21.Rf1=+) 18.Rc3= Qe6 (18...Rde8 19.Qf3=) 19.Bg6 (19.Qf3 Bg5 20.Bg6 Qg6=) 19...fg6=+ 20.Nf3 Rf7 (20...g5 21.Qd3=+) 21.Qd3 Qe4?? (better is 21...Rdf8!?=+) 22.Qe4+/– de4 23.Nd2 Bf6 24.Ne4+– Rdf8 25.Nf6 gf6 26.Rcc1 Ne7 27.Rce1 Re8 28.h3 f5+/– 29.e4 f4 30.d5+– Nc8 31.Bc1 g5 32.h4 h6 33.hg5 hg5 34.g3 Ref8 35.gf4 gf4 36.Kf2 Ne7 37.Ke2 Ng6 38.Rf2 Re8 39.Kd3 Ne5? 40.Kd4 Ng6 41.Ref1 Rd8? 42.Bf4 Nf4 43.Rf4 Rf4 44.Rf4 c6 45.Kc4 cd5 46.ed5 Kg7 47.d6 Rf8 48.Rf8 Kf8 49.Kd5 Ke8 50.c6 bc6 51.Kc6 Kd8 52.d7 (52...Ke7 53.Kc7+–) 1–0. Szymanska,Maria – Szydlowska,Malgorzata, Grudziadz, 1993.

5.d4 Bd6 6.Nf3 a5 7.b5 c6 8.a4 Qb6 9.Ba3 cb5 10.Bd6 Qd6 11.Bb5 (11.ab5!? Qb4 12.Nbd2=) 11...Bb5=+ 12.ab5 Qb4 13.Qd2 Qb2 14.Qc3 Qc1 15.Ke2 Qh1 16.Qc8 Ke7 17.Qh8 Qg2 18.Qc8 Ng4 19.Qc7 (19.Nbd2 Qf2 20.Kd1 Ne3 21.Kc1=) 19...Nd7–+ 20.Qg3 Qg3 21.fg3 Ndf6 22.Nbd2 Ne4 23.Ne4 de4 24.Nd2 f5 25.c4 Nh2 26.Rh1 Ng4 27.Rh7 Kf7 28.Rh4 a4 29.c5 a3 30.Rh1 a2 31.Ra1 g5 32.Nc4 Ke7 33.Kd2 Kd8 34.Kc2 Nf2 35.Kb3 Nd3 ˝–˝. Loulou – EmK, HCL–M428 playchess.de, 2003.

5.Be2 Bd6 6.f4 a6 7.Nf3 c5 8.bc5 Bc5 9.0–0 Bb5 (9...0–0!?=) 10.Bb5+= ab5 11.Nc3 Qb6 12.Qe2 Ra5 13.Rfb1 Nbd7 14.Bc1 Increasing the pressure on the isolated pawn on b5 14...b4 (better is 14...0–0+=) 15.Nd1?? (better is 15.ab4!? Bb4 16.Ba3 Bc3 17.Rb6 Ba1 18.Rb3+–) 15...0–0 (15...Qa7!?+=) 16.ab4= Ra1 17.Ra1 Qb4 18.d4 Bb6 (18...Be7 19.Ba3 Qa5 20.Bb2=) 19.c3 Qb3 20.Qd3 Ne4 Attacks the backward pawn on c3 21.Rb1 (21.Ra3!? Qc4 22.Qc4 dc4 23.Nb2+=) 21...Qa4 22.Rb4 (22.Nb2 Qc6 23.c4 Ba5+=) 22...Qc6 23.Ne5 Ne5 24.fe5 Ra8 25.Rb1 h6 26.Nf2 Nc3 27.Rb6 Qb6 28.Qc3 Qb5 29.Nd3 Qa4 30.Bb2 b5 31.Nc5 b4 (better is 31...Qd1!? 32.Kf2 Ra2+=) 32.Na4+/– bc3 33.Nc3 Rb8 34.Nd1 Kh7 35.Kf2 g5 (35...Rb3 36.Kf3+/–) 36.Kf3 Kg6 37.Ba3 Rb3 38.Bc5 h5 39.h3 f5 40.ef6! Kf6 41.Bd6 Rb7 42.Nf2 Rb1 43.g4 h4 44.Bc7 (better is 44.e4+–) 44...Re1? (44...Rb3 45.Bd8 Kg6 46.Be7+/–) 45.Ba5 (better is 45.Nd3!? Ra1 46.Bd8 Kg6 47.Ne5 Kh6 48.Nf7 Kg6 49.Ng5 Ra8 50.Ne6 Kf7+–) 45...Rb1 46.Nd3 Rd1? (46...Ke7 47.Bb4 Kf7 48.Bd6+–) 47.Ne5 (47.Bd8 Kg6 48.Ne5 Kg7 49.Bg5 Rh1+–) 47...Rg1?? (better is 47...Ke7!?+/–) 48.Bd8+– Kg7 49.Bg5 Rg3 (49...Rf1 50.Kg2 Re1 51.Nd3+–) 50.Kf2 Rh3 51.Kg2 (51.Kg2 Rg3 52.Kh2+–) 1–0. mikebaldini (1675) – tedfisher (1675), gameknot.com, 2015.

5.Nf3 Ba4 6.Qc1 Nc6?? (better is 6...Bd6=) 7.Nc3+– b5 (7...Nb4 8.Na4 Nc6+–) 8.Nb5 (better is 8.Na4 a6 9.Nc3+–) 8...Bb5?? (better is 8...Nb8+/–) 9.Bb5+– Qd7 10.Ne5 (better is 10.Nd4 Qc8 11.Bc6 Nd7 12.c4 dc4 13.Nf3+–) 10...Qd6 (10...Ne5 11.Bd7 Nfd7+–) 11.Bc6 Kd8 (11...Ke7 12.Ba8 Nd7 13.Nc6 Ke8+–) 12.Ba8 (12.Ba8 Ke7 13.Bd4+–) 1–0. Fournier,Frederic (1670) – finegold@chesscube.com, Active, 2011.

5.Nf3 a6 6.c4 c5 7.Qb3 (7.bc5 Bc5 8.cd5 ed5=) 7...Bc6 8.Nc3 (8.bc5 Bc5 9.d4 dc4 10.Bc4 Bd6=) 8...dc4+= 9.Bc4 b5 10.Be2 c4 11.Qc2 Be7 12.h3 (12.Rd1 a5 13.d3 cd3 14.Rd3 Nbd7=) 12...0–0 (12...a5 13.a4 ba4 A) worse is 14.Bc4 ab4 (worse is 14...Bb4 15.Ne5=) 15.Na4 Nbd7+=; B) 14.b5+=) 13.g4 (13.0–0 Ra7=) 13...h6 (13...a5 14.ba5 Na6 15.0–0 Qa5 16.Ne5+=) 14.g5 hg5 15.Ng5?? (better is 15.Rg1+=) 15...Bh1–+ 16.Nd5 (16.Nb5 Ne4 17.Ne4 ab5–+) 16...g6 (better is 16...Bd5 17.Bf6 g6 18.Be7 Qe7 19.h4–+) 17.Nf6 Bf6 18.Ne6 Qe7 19.Nf8 Kf8 20.0–0–0 Bb7 21.Bc3 Nd7 22.f4 Rd8 23.Rf1 White intends f5 23...Nb6 24.f5 Be4 25.Bf6–/+ Qf6 26.Qe4 ˝–˝. Serowy,Reinhold – Rogala,Jan (1635), Brandenburg Seniors op, 2003.

5.Nf3 Bd6 6.c4 dc4 7.Bc4 Bc6 8.0–0 a6 9.d4 Nbd7 10.Nbd2 0–0 11.Bd3 e5?? (better is 11...Nb6=) 12.de5+– (12.Ne5?! Ne5 13.de5 Be5 14.Bh7 Nh7 15.Be5 Qg5+/–) 12...Ne5 13.Ne5 (better is 13.Be5 Bf3 14.Nf3 (worse is 14.Qf3 Be5 15.Qe2 Ba1 16.Ra1 Qd5–/+) 14...Be5 15.Ne5+–) 13...Be5+/– 14.Be5 Qd3 15.Nf3 Qf5 16.Bf6 (16.Bc7 Rac8 17.Nd4 Qe4 18.Nc6 Rc7+=) 16...Qf6= 17.Qe2 (17.Nd4 Bd5=) 17...Bf3 (better is 17...Bb5 18.Qc2 Bf1 19.Rf1 c6–+) 18.Qf3= Qf3 19.gf3 Rad8 20.Rfd1 Rd6 (20...Rfe8!?+=) 21.Rd6+= cd6 22.Rd1 Rd8 23.Rd5 Kf8 24.e4 Ke7 25.f4 g6 26.f3 Rc8 27.Kf2 Rc3 28.a4 White plans b5 28...Rc4–/+ 29.b5 Ra4 30.ba6 Ra6 31.Rb5 Ra2 32.Kg3 Ra7 33.Kg4 White intends f5 33...Kd7 34.Kg5 Ke6 35.f5 gf5 36.ef5 Ke7 37.Kh6 Ra2 38.Kh7? Rh2–+ 39.Kg7 Rg2 40.Kh6 Kf6 41.Rb7?? Rh2 0–1. Fournier,Frederic (1730) – chessintrepid (1685), Active, 2007.

5.c4 a6

6.cd5 Nd5 7.Nf3 Nf6 8.Nc3 Nc6 9.d4 Be7 10.Bd3 0–0 11.0–0 b5 12.Qc2 g6 13.Ne4 Ne4? (better is 13...Nd5+/–) 14.Be4+– Rb8 (14...Bb4 15.ab4 Nb4 16.Qc5+–) 15.Bc6 Bc6 16.Qc6 Rb6 17.Qc3 Qd5 (17...f6 18.e4+–) 18.Rac1 (18.Qc7 Bd8 19.Qc5 Rc6 20.Qd5 ed5+–) 18...c6 (18...Bd6 19.Ne5+–) 19.Rfe1 (19.e4 Qe4 20.d5 f6+–) 19...f5 20.Ne5 Rc8 21.Nd3 Bf6 22.Nc5 h5 23.f3 h4 24.e4 fe4 25.fe4 Qg5 26.Ne6 Qg4 27.Nc5 h3 28.Qh3 Qh3 29.gh3 Rd8 30.e5 Bg7 31.Ne6 Rd7 32.Ng7 Rg7 33.e6 Re7 34.Rc5 Kf8 35.Rg5 Kg7 36.d5 Kh6 37.h4 cd5 38.Rd5 Rbe6 39.Rde5 Re5 40.Re5 Rd7 41.Re2 Rd3 42.Kg2 Kh5 43.Rf2 Kh4 44.Bf6 Kh5 45.Rf3 Rd2 46.Kg3 g5 47.h3 Rd1 48.Rc3 Rg1 49.Kh2 Ra1 50.Rg3 Ra2 51.Kg1 Kh4 52.Rg5 Kh3 53.Rh5 Kg4 54.Rg5 Kf4?? 55.Rg2 Ra3 56.Be7?? Ra4? 57.Bc5?? Ke4?? 58.Rg4?? Kd5? 59.Kg2 1–0. Fournier,Frederic (1885) – michaelc, Active (5/0), 2006.

6.Nf3 dc4 7.Bc4 Bd6 8.0–0 =.

6.Nf3 Nc6 7.Qb3 (7.d3 Qe7=) 7...h6 (7...Be7 8.d4=) 8.Be2 (8.d4 Ne7+=) 8...b6 (8...dc4 9.Qc4 Nd5 10.d3=) 9.Nc3 (9.cd5 Nd5 10.0–0 b5+=) 9...Ne7 (9...dc4 10.Qc4 b5 11.Qh4+=) 10.Ne5 (10.cd5 ed5 11.0–0 c5+=) 10...c6 (10...dc4 11.Qc4 b5 12.Qd3+/–) 11.Bf3 (11.0–0 dc4 12.Qc4 Ned5+/–) 11...Nf5= 12.cd5 ed5 (12...cd5 13.0–0=) 13.e4 (13.Nd7!? Qd7 14.Rc1+=) 13...Nd4= 14.Qd1 Qe7 (14...Be6 15.0–0=) 15.Nd7 Nd7 16.0–0 Qg5? (better is 16...Nf3!? 17.Qf3 d4=) 17.ed5+/– Kd8?? (better is 17...c5+/–) 18.dc6+– Ne5 19.c7! Kc7 20.Nd5 Kd6 21.Bd4 Nf3 22.Qf3 Qd5 23.Qf4 Kd7 24.Rac1 Bd6 25.Qg4 f5 26.Qg7 Be7 27.Rfe1 Rhe8 28.Bf6 Qd6 29.Be7 Re7 30.Re7 Qe7 31.Rc7! (31...Kc7 32.Qe7 Kb8 33.d4+–) 1–0. Gross – Lorscheid, NW Frankfurt–Bonames, 1979.

5.c4 dc4

6.Bc4= a5 7.b5 c6 8.a4 (8.Nc3 Be7=) 8...Be7 (8...Bd6 9.Nf3=+) 9.Nf3= Qc7 10.Nc3 cb5 11.Bb5 Nc6 12.Na2 Nb4 (12...0–0!?=) 13.Nb4+= Bb5 14.ab5 (14.Bf6 gf6 15.Nd5 ed5 16.ab5 Qc4+=) 14...Bb4 15.Rc1 (15.Bf6 gf6 16.0–0 Rc8+=) 15...Qd7 16.b6 Rc8 (16...a4 17.Rc7 Qd5 18.Bf6 gf6 19.Qa1=) 17.Rc8+= Qc8 18.Qa4 Qd7 19.Qd7 Kd7 20.0–0 (20.Ke2 Bc5=+) 20...Rc8 21.Rc1 (21.Ra1!?=+) 21...Rc1–/+ 22.Bc1 Ne4 (22...Kc6 23.Ne5 Kb6 24.d3–/+) 23.d3 Nc3 24.Ne5 Kd6 25.Nc4 Kc5 26.Ba3 Ba3 27.Na3 Kb6 28.Kf1 Kc5 29.Nc2 b5 30.Ke1 b4 31.Kd2 a4 32.Na3 Nb5 33.d4 Kc6 34.Nc4 b3 35.Kc1 a3?? 36.Na5–/+ Kd5 37.Nb3 Kc4 38.Kc2 Nc7 39.Nd2 Kb4 40.Kb1 Nd5 41.Ne4 Kb3 42.Nc5=+ Kb4 43.Ne4–/+ h6 44.g4 f5 45.gf5 ef5 46.Nc5 f4 47.Nd3 Kc3 48.e4 Nf6 49.Nf4 Ne4 50.d5 Kb3 (51.Ne2 Kc4–/+ (51...Nf2?? 52.d6+–); 50...g5!? 51.Ne6 Kc4–/+ (51...Nf2 52.d6+–)) 0–1. Turudic,M – Soln,Primoz, Pokljuka op, 1991.

6.Bc4 a6 7.d4 Bd6 =.

6.Bc4 a6 7.Nf3 Nc6 8.d4 =.

6.Bc4 a6 7.Nf3 Bd6 8.Nc3 0–0 (8...b5 9.Be2=) 9.0–0 (9.d4 Nc6=) 9...b5 (9...Re8 10.d4=) 10.Be2 c5 11.bc5 Bc5 12.Rc1 (12.d4 Be7=) 12...Qe7 13.a4 (13.Qb3 Nc6=) 13...b4 14.Na2 Bd6 15.Ne5 Be5 (15...Nd5 16.d4=) 16.Be5 Nc6 17.Bg3 (17.Bf6 Qf6 18.Bf3 Rac8=) 17...Rfc8 (17...Ne4 18.d4=) 18.Bf3 (18.d4 Ne4=) 18...e5=+ 19.Bh4 (19.d4 e4 20.Be2 Be6=+) 19...Rab8 20.Qe2 (20.d4 b3 21.Nc3 b2=+) 20...Rb6 (20...e4 21.Bh5–/+) 21.Bd5 (21.Be4 h6=+) 21...Qd6–/+ 22.Bb3 (22.Bc4 a5 23.d3–/+) 22...e4 (22...Na5!? 23.Rc8 Bc8–/+) 23.f3 (23.Bf6 gf6 24.f3 Na5 25.Rc8 Bc8=+) 23...Be6 24.Be6= Qe6 25.Bf6 Qa2 26.Bd4 Rbb8 27.Qa6 Qe6= 28.Bb2 Qd5?? 29.fe4+/– Qe4 30.Rf4 Qe6 31.Rfc4 Ne7 32.Rc8 Rc8 33.Rc8 Qc8 34.Qc8 Nc8 35.a5 b3 36.Kf1 f6 37.Ke2 Na7 38.Kd3 Kf7 39.Kc4 Ke6 40.Kb3 Kd5 41.Bd4 Nc6 42.a6 Ke4 43.Kc4 (43...h6 44.d3 Kf5 45.Kb5 Nd4 46.ed4+–) 1–0. Bender,Wolfgang – Mueller,Alwin, Westpfalz op, 1998.

6.Bc4 b5 7.Be2 c5 (7...a5 8.Nc3=) 8.bc5 Bc5 9.Nc3 (9.Qc2 Bf8=) 9...Bc6 (9...a6!?=) 10.Bb5+= 0–0 11.Nf3 Bb5 12.Nb5 Nc6 (12...Nbd7 13.Rb1+=) 13.Qc2 (13.Bf6 Qf6 14.Rc1 Ne5+/–) 13...Nd7 14.0–0 Bb6?? (better is 14...Rb8 15.Nc3 Bd6+/–) 15.Qc6+– Rc8 16.Qe4 Nc5 17.Qd4 (17.Qg4 f6+–) 17...f6 18.Qd8 Rcd8 (18...Rfd8 19.Rab1+–) 19.d4 Ne4 20.Rac1 a6 (20...Rc8 21.Nc3 Nc3 22.Bc3+–) 21.Nc7 (21.Rc6 ab5 22.Rb6 Nd6+–) 21...Bc7 22.Rc7 h5 23.Nh4 Rfe8 24.f3 Ng5 25.Ng6 Kh7 26.Nf4 Kh6 27.h4 Nh7 28.g4 hg4 29.fg4 e5 30.Nh5 ed4 31.Bd4 Re4 32.Nf4 g5 33.hg5 Ng5 34.Bf6 Nh3 35.Kg2 Nf4 36.ef4 Rd2 37.Kg3 Re3 38.Rf3 Ree2 39.f5 Rg2 40.Kf4 (40...Rg4 41.Kg4 Rg2 42.Kf4 Rg3 43.Rg3 Kh5 44.Rh3) 1–0. Bazza3 – patman007, ChessWorld.net, 2005.

6.Bc4 Nc6 7.Nf3 Be7 8.0–0 0–0 9.Nc3 a6 10.Rc1 b5 11.Bb3 (11.Be2 Bd6+=) 11...Na7 (11...a5 12.Nb5 ab4 13.Bf6 Bf6 14.ab4 Nb4 15.Bc4=+) 12.Ne5 Nc6 (12...a5 13.ba5 c5 14.Nd7 Nd7 15.d3=) 13.Nd7 (13.d4 Ne5 14.de5 Ne8+/–) 13...Qd7 14.Qf3 (better is 14.d4+/–) 14...Ne5=+ (< 14...Qd2 15.Ba1 (< 15.Qc6 Qb2 16.Be6 Qa3=+) 15...Qd7 16.Ne2+=) 15.Qg3 Bd6 (better is 15...Nd3!? 16.Rb1 c5=+) 16.f4+= Nd3 (16...Ng6+=) 17.Rb1 (17.Ne4 Nh5 18.Nf6 Nf6 19.Bf6 g6+–) 17...c5?? (17...Nb2 18.Rb2 c5 19.d4 cb4 20.ab4 Bb4 21.Ne2–/+) 18.bc5 (18.Ne4 Nh5 19.Qg5 Nb2 20.Rb2+/– (< 20.Nd6 Nd3+=)) 18...Nc5 19.Bc2 Rfc8 20.e4 e5?? 21.fe5+– Bc7 22.Qe3 Be5–/+ 23.Rfd1?? Bd4–+ 0–1. thedesertfox (2155) – deafstrong (2000), net–chess.com, 2004.

6.Bc4 Bd6 7.Nf3 0–0 8.0–0 Bc6 (8...b5 9.Bd3=) 9.d4 (9.Nc3 a6=) 9...Nbd7 (9...Bd5 10.Bd3=) 10.Nbd2 (10.Nc3 a6=) 10...Bd5 (10...a5 11.b5 Bd5 12.Bd3+=) 11.Qc2 (11.Bd3 Nb6+=) 11...Bc4 (11...Nb6 12.Bd3 a6 13.e4+–) 12.Nc4+= Be7 (12...Nb6 13.Nb6 cb6 14.Rfc1+=) 13.Rac1 c6 14.Na5 (14.Nfe5 Nb6+=) 14...Rb8 15.e4 c5? (better is 15...Qc7!?+=) 16.dc5+/– Nc5 17.Rfd1 (17.Qc5 Bc5) 17...Ncd7 18.Bf6 Bf6 (18...gf6 19.Qc7 Rc8 20.Qg3 Kh8 21.Nb7+–) 19.e5! Be7 (19...Ne5 20.Rd8) 20.Qc7 Rc8 21.Qb7 Rc1 22.Rc1 Bg5? (22...Nb8 23.Qa7 Bg5 24.Ng5 Qg5+–) 23.Nc6 Qb6 24.Qb6 ab6 25.Ng5 h6 26.Ne7 Kh8 27.Nf3 Re8 28.Rc8 Rc8 29.Nc8 Kh7 30.a4 (30...Kg8 31.a5 ba5 32.ba5+–) 1–0. Forman,Stepan – Blecha,Miroslav, CZE Czechia–ch U14, 1993.

5.c4 c5

6.b5 a6 7.cd5 ed5 8.Nc3 =+.

6.b5 a6 7.cd5 ed5 8.Bf6 Qf6 9.Nc3 =+.

6.bc5 dc4 7.Qc2 Bc5 8.Bc4 (8.d4 Be7=) 8...Be7 (8...Bc6 9.Nf3 Nbd7 10.Nc3=+) 9.Nc3 (9.Nf3 Nc6=) 9...Bc6 (9...a6 10.Nf3=) 10.Nf3 (10.Nge2 0–0 11.0–0 Qd6=) 10...Nbd7 (10...Bf3 11.gf3 Nbd7 12.d4=) 11.Nb5 (11.Nd4 Rc8 12.Nc6 Rc6=) 11...0–0 (11...a6 12.Nc3=+) 12.Nbd4 Be4 (12...Bf3 13.Nf3 Rc8 14.Qd3=+) 13.d3= Bg6 (13...Bf3 14.gf3 Rc8 15.Qb3=+) 14.0–0 Rc8 15.Qe2 Bh5 (15...e5 16.Nb3 Bh5 17.Nbd2=) 16.Rac1 Ne5? (better is 16...a6=) 17.Ne6!+– Nf3 18.gf3 Qa5 19.Nf8 Qg5= 20.Kh1 Qf5 21.Rg1?? Bf3–+ 22.Rg2 Be2 23.Ne6 Bf3 24.Nd4 Bg2 25.Kg2 Qg4 26.Kf1 Rc5 27.e4 Rh5 28.Ke1 Rh2 29.Kd2 Rf2 30.Kc3 Qg3 31.Bd5 Nd5 32.ed5 Qc7 (33.Nc6 bc6 34.Rc2 Qa5 35.Kb3 Qd5 36.Rc4 Qd3 37.Ka4 Qc4 38.Ka5 Qb5#) 0–1. Williams,Barry M – Edwards,Bevan J, corr NZCCA TT res, 2001.

6.bc5 dc4 7.Bc4 Bc5 8.d4 Bd6 =.

6.cd5 ed5 7.bc5 Bc5 8.Bf6 Qf6 9.Nc3 =.

6.cd5 Nd5 7.bc5+= Qa5 8.Qc2 +=.

6.cd5 Nd5 7.bc5+= Nc6 8.Nf3 (8.d4!?+/–) 8...Qa5= 9.Nc3 Be7? (better is 9...Qc5 10.Rc1 Qb6=) 10.Nd5+– ed5 11.Bg7 Rg8 12.Bc3 Qc5 13.Qb1 0–0–0 (better is 13...f5+–) 14.Qh7 Rdf8 (14...Qd6 15.h4+– (15.Qf7?! Rdf8 16.Qh7 Bf5=)) 15.Qd3 Kb8 (15...Qd6 16.h4+–) 16.h4 Bg4 17.Ne5 Ne5 18.Be5 Bd6 (18...Ka8 19.h5+–) 19.Qc3 Rc8 (19...Qb6+–) 20.Qc5 Rc5 (20...Be5 21.Qd5 Ba1+–) 1–0. "lasker" (2030) – Cimmeria, internet, 2007.

6.b5 Bd6

7.Nc3 0–0 8.d4 dc4 9.dc5 Bc5 =.

7.Nc3 0–0 8.Nf3 a6 9.Qb3 =+.

7.Nc3 0–0 8.Nf3 Re8 9.Be2 (9.Qb3 e5 10.Nd5 Nd5=) 9...e5 10.Nd5 (10.cd5 e4 11.Ng1 Nd5 12.Nd5 Qg5 13.Nf6 gf6=) 10...Nd5 11.cd5 e4 12.Ng1 b6 (12...Qg5 13.g3 Qd5 14.f3–/+) 13.Qc2 (13.Qb3 a6=) 13...a6 (13...Qg5 14.Bf1=+) 14.ba6 Na6 15.f3 Bf5=+ 16.g4 Bg6 17.h4 h6 18.h5 Bh7 19.d3?? Bg3 20.Kf1 Qd5?? 21.Kg2?? Be5?? 22.Be5?? Qe5 23.Rb1 f5?? 24.Rb6 Nc7 25.Rc6 Nd5–/+ 26.Qc5 fg4 27.fg4? ed3–+ 28.Bf3 Ne3 29.Kf2 Qb2 30.Ke1?? d2 31.Kf2–+ d1Q (32.Ne2 Qde2 33.Be2 Rf8 34.Qf8 Rf8 35.Kg1 Qe2 36.Rh6 Rf1#) 0–1. Rempe,Torge – Hunkel,Pascal, Schleswig Holstein–ch U14, 1999.

7.Nc3 d4 8.ed4 cd4 9.Nce2 =+.

7.Be2 0–0 8.d3 a6 9.Qa4 =+.

7.Be2 0–0 8.d3 Re8 9.Nf3 e5 10.0–0 e4 (better is 10...dc4 11.dc4 Qc7=+) 11.de4+/– Ne4 12.Qd5 (better is 12.Nc3 Nc3 13.Bc3+/–) 12...Qc7?? (12...Bb5 13.Qb7 Bc6 14.Qb3+=) 13.Ng5?? (better is 13.Bd3 Nf6 14.Bf6 gf6 15.Qh5+–) 13...Ng5 14.Qg5 Be5? (better is 14...Bh2 15.Kh1 Be5 16.Be5 Re5+= (< 16...Qe5 17.Qe5 Re5 18.Bf3+/–)) 15.Be5+– Qe5 (better is 15...Re5 16.Qg3 Bf5+–) ˝–˝. Rempe,Torge – Schmueser,Florian, Schleswig Holstein–ch U14, 1999.

7.Be2 0–0 8.Nf3 dc4 9.Bc4 a6 =.

7.Be2 a6 8.Qa4 =+.

7.Qf3 a6 =.

7.Bf6 Qf6 8.Nc3 Be5 =.

5.c4 c6

6.cd5 cd5 7.Nf3 a6 8.d4 Qb6 9.Bd3 Bb4?? (better is 9...Bd6=) 10.ab4+– Qb4 11.Qd2 Nc6 12.0–0 Qd2 13.Nbd2 Nb4 14.Be2 0–0 (14...Rc8!?+/–) 15.Ba3+– a5 16.Rfb1 Rfb8 17.Bb4 ab4 18.Ra8 Ra8 19.Rb4 Ra1 20.Rb1 Rb1 21.Nb1 b5 22.Nfd2 Kf8? (22...b4 23.Nb3+–) 23.f3 (23.Nc3 b4 24.Na2 Ne4 25.Ne4 b3+–) 23...Ke7? (23...b4 24.Kf2+–) 24.Nb3 (24.Nc3 b4 25.Na2 Kd6+–) 24...Kd6 (24...Ne8 25.Bd3+–) 25.Nc5 Bc6 26.Na3 b4 27.Nc2 b3 28.Nb3 Ba4 29.Nca1 Nd7 30.Kf2 Nb6 31.Nc5 Bc6 32.Nc2 e5 33.Nb4 ed4 34.ed4 Be8 35.f4 Nc4 36.g3 f6 37.Bc4 dc4 38.Ke3 Bf7 39.Kd2 Bg6 40.Kc3 Bf7 41.Nc2 Kd5 42.Ne3 Kc6 43.Nc4 Bc4 44.Kc4 g6 45.d5 Kd6 46.Ne4 Ke7 47.Kc5 f5 48.Ng5 h6 49.Ne6 Kd7 50.Nf8 Ke7 51.Ng6 Kf6 52.d6 1–0. Fournier,Frederic – Berger, Active, 2007.

6.Nf3= dc4 7.Bc4 b5 8.Bb3 a5 9.ba5 Ra5 (9...c5 10.0–0=) 10.0–0 Be7 (10...c5 11.d4=) 11.d4 0–0 12.Nbd2 (12.Qc2 Na6=) 12...Ra8 (12...c5 13.dc5 Bc5 14.Bc2+=) 13.Qc2 (13.Ne5 c5+=) 13...Na6= 14.Rfc1 (14.Ng5 Qc7 15.e4=) 14...Nc7 (better is 14...c5!?=) 15.Ne5+/– Ra6 16.a4 ba4 (16...Bd6 17.Ne4 Be5 18.de5 Ne4 19.Qe4+=) 17.Ba4 Ncd5 18.Qc4 Rb6 19.Ba3 Ba3 20.Ra3 Rb2 21.Nd7 Nd7 22.Rc2 Rc2 23.Bc2 Qb8 24.Rb3 Qa8 25.Qd3 g6 26.Ra3 Qb8 27.Rb3 Qc7 28.g3 c5= 29.Rb2 cd4 30.Qd4 Rd8 31.Qc4 Qa5 32.Nf1 Ne5=+ 33.Qa2 Qc7 34.Bb3 Nb4–/+ 35.Qa1 Nbd3 36.Ra2 Qb7 37.Bd1–/+ Nf3 38.Bf3 Qf3 39.Rd2 Ra8 40.Qd1=+ Ne5 41.Rd8 Rd8 42.Qd8= Kg7 43.Qd4 f6 44.Qf4 Qe2 45.e4 h5 46.Qe3 Qd1 47.Kg2 Ng4 48.Qa7 Kh6 49.h3 Ne5 50.Qe3 g5 51.Nh2 Nd3 52.Nf3 Ne5 53.Ne5+/– fe5 54.h4 Qd4? 55.Qg5+– Kh7 56.Qh5 Kg7 57.Qg4 Kf6 58.h5 Qd2 59.Qg6 Ke7 60.h6 (60...Qa2 61.Qg5 Kd7 62.h7+–) 1–0. Bartle,Georg – Lukic,Branislav, Baden–ch HT1, 2003.

6.Nf3 h6 7.Nc3 b5 8.cb5+/– c5 9.bc5 Bc5 10.Qc2 0–0 (better is 10...Qe7!?+/–) 11.Nd5!+– Ba3?? (11...Nd5 12.Qc5) 12.Nf6 (12.Ra3?! Nd5 13.Bc4 Qc8+–) 12...gf6 13.Ra3 (better is 13.Ba3!? f5 14.Bf8 Kf8 15.Ra7 Ra7 16.Qc5 Kg8 17.Qa7 Qc8+–) 13...e5 (13...f5+–) 14.Qe4 (14...Qb6 15.Bd3+–) 1–0. Ziese,Gerhard2 – Schmidt,Erwin, Bahn–chG Fuessen, 1993.

6.Nf3 h6 7.Nc3 dc4!? 8.Bc4 b5 =.

5.Nf3 a5

6.ba5 Ra5 7.Nc3 Ra7 (7...Bd6 8.a4+=) 8.Be2 Bd6 9.d3 (9.a4 c6=) 9...e5+= 10.0–0 Qe7 11.d4 e4 12.Nd2 Nc6 (12...c6 13.a4+=) 13.f3 (13.Nb5 Ra8=) 13...Be6 (13...ef3!? 14.Rf3 Bg4–/+) 14.fe4= Ne4 (14...de4 15.Nb5 Nd5 16.Ne4 (worse is 16.Nd6 cd6 17.Rf2 Ne3+=) 16...Ne3 17.Ned6 cd6 18.Qd3 Nf1 19.Rf1+–) 15.Nce4 (15.Nde4!? de4 16.Nb5+= (16.Ne4?! Bh2 17.Kh2 Qh4 18.Kg1 Qe4=)) 15...de4= 16.Ne4 Bd5?? (better is 16...Bh2!? 17.Kh2 Qh4 18.Kg1 Qe4=) 17.Nd6+/– cd6 18.Qd2 (18.c4!? Qe3 19.Rf2+–) 18…Be4 0–1. Fournier,Frederic (1630) – Pi_Qui (1615), rated lightning game (1/0), 2002.

6.b5 a4 7.c4 dc4 8.Bc4 c6 9.Nc3 Be7 (9...cb5 10.Nb5 Be7 11.0–0=) 10.Ne5 (10.Na4 cb5 11.Nb6 Qb6–+) 10...cb5= 11.Nb5 (11.Bb5 Bb5 12.Nb5 0–0=) 11...0–0 12.Nd7 Nbd7 13.Nc3 (13.Rc1 Nb6 14.Bf6 Bf6=) 13...Ne5=+ 14.Bb5 Nd3 15.Bd3 Qd3 16.Na4 Qe4 17.Nc3 (17.Bf6 Bf6 (17...Qa4?? 18.Qa4 Ra4 19.Be7+–) 18.d4 Qg2–/+) 17...Qg2–/+ 18.Ke2 Qg4 (18...Rfd8 19.h3–/+) 19.Kf1 (19.Ke1 Qg2 20.Ke2 Rfc8–/+) 19...Qh3 20.Ke2 Rfd8 21.Qg1 Qf5 22.Qd1 (22.Qb1 Qh5 23.Ke1 Qf3–/+) 22...Qd3 (22...Ng4 23.Qe1–+) 23.Ke1–/+ Nd7 24.Qe2 Nc5 25.Rg1? Qc2–+ 26.Rg7 Kg7 27.Nd1 Kf8 28.Bc3 Ne4 29.Bd4 Ra3 30.Ra3 Ba3 31.f3 Nc5 32.Qg2 Nd3 33.Ke2 Nf4! 34.ef4 Rd4 35.Ke3 Rd3 (36.Kf2 Rd2 37.Kg3 Rg2 38.Kh3 Rh2 39.Kg4 Qg6#) 0–1. Reimer,Karl – Kratz,Roland, PF–op Mehlingen, 1992.

6.b5 Bd6 7.Be5 =.

6.Nc3 ab4+= 7.ab4 Ra1 8.Qa1 Bb4 9.Be2 0–0 10.0–0 c5 11.d4 (11.Rb1 c4+=) 11...c4 (11...cd4 12.Nd4 Qc7 13.Ncb5 Bb5 14.Bb5–/+) 12.Ne5 Be8 13.f4 (13.Ba3 Ba3 14.Qa3 Nbd7+=) 13...Nc6 14.Qd1 (14.Ba3 Ba3 15.Qa3 Ne7–/+) 14...Qa5 15.Nb1? (15.Qa1 Bd7–/+) 15...Ne5?? (better is 15...c3 16.Bc3 Bc3–+) 16.fe5–/+ Ne4 17.c3 (17.Qc1!?–/+) 17...Nc3–+ 18.Nc3 Bc3 19.Bc3 Qc3 20.Rf3 Bc6 0–1. dsteel (2105) – gfry (2150), net–chess.com, 2016.

5.Nf3 c5

6.b5 Be7 7.c4 b6 8.Qc2 (8.d4 a6 9.dc5 bc5 10.ba6 Na6=) 8...0–0 9.g3 (9.d4 a6=) 9...Bc8 (9...a6 10.Ng5 g6 11.a4=+) 10.Bg2 Bb7 11.0–0 Nbd7 12.Nc3 (12.d3 a6=) 12...Rc8 (better is 12...dc4!? 13.Qa4 a6 14.ba6 Ba6–/+) 13.d3= Bd6 14.a4 Ne5 15.Ne5 Be5 16.cd5 (16.f4 Bd6=) 16...Bc3 (16...ed5 17.Rfc1=) 17.Bc3 (17.Qc3 ed5 18.Qd2 Re8+=) 17...ed5 (17...Nd5 18.Bb2=) 18.Bf6 (18.a5 Nd7+/–) 18...Qf6+= 19.Qb3 (19.a5 Rc7=) 19...c4= 20.dc4 dc4 21.Qc2 Bg2 22.Kg2 Rfd8 23.Rac1 Qe6 24.Rfd1 Rd1 25.Rd1 c3 (25...Qe7 26.Rd4 c3 27.Rh4=) 26.Qd3 (better is 26.Qc3! h6 27.Qd3+/–) 26...g6 27.Qc2 Qc4 28.Rc1 Qc7 29.Kg1 Qc4 30.Kg2 Qd5 31.Kg1 Kf8 32.h4 (32.Rd1 Qe5=) 32...Ke7 33.Kh2 (33.Rd1 Qe5=) 33...Ke6 (33...Qd2!?=) 34.Rd1+= Qc4 35.Rc1 (better is 35.Rd4 Qc7 36.Re4 Kf6 37.h5=) 35...Rd8 (35...Kf6 36.e4=) 36.h5 (better is 36.Qc3 Qc3 37.Rc3+/–) 36...Rd3 (< 36...gh5 37.Qc3 Qc3 38.Rc3+/–) 37.Rd1?? (better is 37.h6=) 37...Rd1–+ 38.Qd1 c2 39.Qc1 Qa4 (better is 39...Qe2 40.hg6 hg6–+) 40.hg6 (40.h6–+) 40...hg6 41.g4 (41.Qh1 Qc4 42.Qc1 Qe2–+) 41...Qb3 42.g5 (42...Qb1 43.Qc2 Qc2 44.Kg3–+; 42.Qa1 Qd5 43.Qa7 c1Q 44.Qb6 Ke7 45.Qa7 Kf8 46.Qb8 Kg7 47.Qe5 Qe5 48.Kg2 Qd1 49.f4 Qe3 50.b6 Qdg1) –+. Slavisa2 – January, Live Game Caissa's Web, 2004.

6.c3 b5 7.d3 a5 =.

6.c3 b5 7.Be2 a5 8.Ne5 (8.bc5!? Bc5 9.a4 ba4 10.Ba3 Ba3 11.Na3=) 8...c4=+ (< 8...cb4 9.ab4 Bd6 10.Nd7 Nbd7 11.Na3+/–) 9.Nd7 Nbd7 10.d3 Nb6 (10...Ne5 11.d4 Nc6 12.0–0=+) 11.Nd2 a4 (11...Na4 12.Ra2=+) 12.Qc2 (12.dc4 bc4 13.e4 Qc7=) 12...Qc7 (12...Bd6 13.0–0=+) 13.d4 (13.dc4 bc4 14.Rb1 Bd6=+) 13...Bd6 14.Bf3 0–0–0 15.0–0–0 h5 (< 15...Bh2 16.g3 Bg3 17.fg3+/–) 16.Kb1 h4 17.g3 hg3 18.fg3 g5 19.Rdf1 g4 20.Be2 Rh6 21.Rf2 Bg3 22.Rg2 Bd6 23.Nf1 Rg8 24.Bc1 g3?? 25.e4–/+ Ne4?? 26.Bh6+– Rh8 27.Bg7 Rh7 28.Be5! Be5 29.de5 gh2 30.Rhh2+– Rh2 31.Nh2 Qe5 32.Kb2 Nd7 33.Nf3 Qf6 34.Nd2 Nd6 35.Rg8 Kc7 36.Nf3 e5 37.Bd1 d4 38.cd4 ed4+/– 39.Ka2 d3 40.Qh2 c3 41.Qf2 Qe6 42.Ka1+/– Qc4 43.Qa7 Nb7 44.Qa8 Nb6?? 45.Qb8 Kc6 46.Ne5 Kd5 47.Nc4 Nc4 48.Qb7 Kd4+– 49.Rd8 Ke3 50.Qf3 Kd2 51.Qd3 (51...Ke1 52.Qe2) 1–0. mic (2270) – vitorluiz (2270), net–chess.com, 2006.

6.c3 b5 7.Be2 c4 8.d3 =.

6.bc5 Bc5 7.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 6.Nf3 0–0 7.c4 Bd7).

6.bc5 Bc5 7.d4 Be7 8.c4 0–0 9.Nbd2 Nc6 10.Bd3 h6 11.0–0 dc4 12.Nc4 b5 13.Nce5 a6 14.Qe2 Ne5 15.Ne5 Bd6 16.Rfc1 Be5 17.de5 Nd5 18.a4 Nb4 19.Be4 Rc8 (19...Rb8 20.Bd4 Qh4 21.Qf3 ba4 22.Bc5+=) 20.Rc8 (20.Ba3 a5 21.ab5 Qb6 22.Bb4 ab4+/–) 20...Qc8 21.Rc1 Qb8 22.Qd2 a5?? (better is 22...Nd5 23.Bd5 ed5+/–) 23.Qd7+– ba4 24.Qa4 Nd3 25.Bd3 Qb2 26.Qa1 Qb4 27.Rb1 Qd2 28.Rd1 Qb4 29.h3 g6 30.Rb1 Qd2 31.Be4 Rc8 32.Qa3 Rc3 (32...Kg7+–) 33.Rb8 Kh7 34.Qf8 (34.Qf8 Rc1 35.Kh2 Rh1 36.Kh1 Qe1 37.Kh2 Qh1 38.Kh1 a4 39.Qf7) 1–0. Fournier,Frederic (1650) – salmija (1605), rated blitz game (2/12), 2002.

6.bc5 Bc5 7.Ne5 0–0 8.Nc3 a6 9.Be2 Be8 10.0–0 Nc6 11.Nc6 Bc6 12.Bf3 Rc8 13.Ne2 Ba4 14.Nc3 Bc6 15.Re1 (15.Ne2 Bd6+=) 15...Rc7 16.d3 Ba7 (16...b5 17.Na2+=) 17.Qd2 (17.Ne2 Rc8=) 17...Qe7 (17...d4 18.Ne2 Bf3 19.gf3 de3 20.fe3–/+) 18.Rec1 (18.e4 de4 19.Ne4 Be4 20.Be4 Rfc8+=) 18...Rd8 (18...d4 19.Nd1 Bf3 20.gf3–/+) 19.Ne2 e5 20.g3 (20.Qa5 b5+=) 20...Nd7 21.c4 (21.Bg2!?+=) 21...dc4–/+ 22.Bc6 Rc6 (22...bc6?! 23.Rc4 Nc5 24.Nc1+=) ˝–˝. Fernandez Zubitur,J (1905) – Aguado Zabaleta,F (1775), 33rd Open, Donostia ESP, 2010.

6.bc5 Bc5 7.Ne5 0–0 8.Be2 Nc6 9.Nd7 Nd7 10.Nc3 a6 11.0–0 Bd6 12.f4 Nf6 13.Rb1 Qa5 14.Bd3 Bc5 15.Qf3 b5 16.Qh3 h6 (16...Ba3 17.Nd5 ed5 18.Bf6 g6 19.Qh6 Qd2 20.Qg7) 17.g4 d4 18.g5 dc3 19.Bc3 Be3 20.Qe3 Nd5 21.Qe4 Qb6 22.Kh1 g6 23.Ba1 h5 (23...Qa5 24.gh6 Qd2 25.h7 Kh7 26.Rf3+–) 24.f5 (24.c4!? Nde7 25.Rfc1+–) 24...gf5+/– 25.Rf5 Nce7?? (25...ef5 26.Qf5 Rfd8+–) 26.Qe5 f6 27.Rf6 Rf6 28.gf6 Kf8 29.fe7 Ke7 30.Be4 Rf8 31.Qg5 Ke8 32.Bd5 Qd6 (32...Rf5 33.Qg8 Kd7 34.Rg1 Qg1 35.Qg1 Rd5 36.Qa7 Kc6 37.Qa6 Kc7 38.Bc3+–) 33.Re1 1–0. pierre – bencare, internet, 2015.

5.Nf3 Nc6

6.b5 Na5 7.Ne5 c5 8.a4 Bd6 9.Nd7 Qd7 10.d3 e5 11.Nd2 0–0 12.g3 Rac8 13.c4 d4 14.e4 a6 15.h4 Ra8 16.Bh3 Qc7 17.g4 Rfd8 18.g5 Nd7 19.h5 Nf8 20.Bf5 Ne6 21.g6 h6 22.gf7 Qf7 23.Nf3 Nf4 24.Bc1 b6 25.Bf4 ef4 26.Nh4 Qf6 27.Qg4 Re8 28.Rg1 ab5 29.ab5 Ra7 30.Qh3 g5? 31.hg6+– Rg7 32.Kd1 Nc4? 33.Nf3 Ne5 34.Ne5 Be5 35.Qh6 c4 36.Rh1 Rc7 37.dc4 d3 38.Ra6 Qd6 39.Ra4 Qd4?? 40.Qh3 Bg7?? 41.Be6+– Kf8 42.Qf5 Qf6 43.Qf6 Bf6 44.Bf5 Bd4 45.Rh4 Be5 46.Rh7 Ree7 47.Ra8 Re8 48.Re8 Ke8 49.Rc7 Bc7 50.Kd2 Be5 51.Kd3 Ke7 52.c5! bc5 53.b6 Kd6 54.Bc8 Bd4 55.f3 Be5 56.Kc4 Bf6 1–0. Wiszniowski,Eugeniusz (1780) – Kowalska,Elzbieta (1940), Warszawa ch41 op A Poland, 2008.

6.c4 dc4 7.Bc4 Qe7 (7...Bd6!?=) 8.0–0+= 0–0–0 (8...Ne4 9.d4+/–) 9.Nc3 (9.b5 Na5 10.Be2 b6+–) 9...Nd5 (better is 9...e5!?+=) 10.Nd5 ed5 11.Be2 (11.Bd5 f6+–) 11...Rg8 (11...f6 12.d4+/–) 12.d4 (12.b5 Nb8+–) 12...g5 (better is 12...Bg4+/–) 13.Qa4?? (13.b5 Nb8 14.Ne5+–) 13...Kb8?? (13...g4 14.Nd2 Nd4 15.Qa7 Ne2 16.Kh1 Bc6=) 14.Ne5?? (better is 14.b5 g4 15.Nd2+– (15.bc6?! gf3 16.Bf3 Bc6=)) 14...Nd4 15.Qa7?? (15.Bd4 Ba4) 15...Ka7–+ 16.Bd4 b6 (16...Kb8 17.Nd7 Qd7 18.a4–+) 17.a4 (17.Rfc1 Kb8 18.Bg4–+) 17...Qf6 (better is 17...c5 18.Bb2 Bg7–+) 18.a5= Qg6?? (better is 18...Qf5 19.ab6 Kb8 20.bc7 Kc7=) 19.ab6 Kb7 (19...Kb8 20.bc7 Kc7 21.Rfc1 Kb8 22.Ng6 Rg6+–) 20.Ng6 (20.Ra7 Kb8 21.bc7 Kc8 22.cd8R Kd8 23.Rd7 Ke8 24.Rc1 Qb1 25.Rb1 f6 26.Bh5 Rg6 27.Rh7 fe5 28.Bg6 Kd8 29.Bb6 Kc8 30.Rc1 Bc5 31.Rc5 Kb8 32.Ba7 Ka8 33.Rc8) 20...hg6 (20...cb6 21.Ba6 Kc7 22.Nf8 Rdf8 23.Rfc1 Kd6 24.Bb6+–) 21.Ra7 Kc6 22.b5 Kd6 23.Rc7 (better is 23.bc7 Rc8 24.b6+–) 23...Ke6 (23...f5 24.Rfc1 Ke6 25.e4+–) 24.b7 (better is 24.e4!? Bd6 25.Bg4 Ke7+–) 24...Bd6 25.Bg4?? (better is 25.Rc6+–) 25...f5= 26.Rd7 Rd7 27.b8Q Rb8 28.Be2 Rh8?? (28...Rc7 29.h3=+) 29.h3?? (better is 29.Bh8 Rh7 30.h3 Rh8 31.Rb1+/–) 29...g4?? (better is 29...Be5=+) 30.Bh8+– Rb7 31.hg4 (better is 31.Bd4 Rh7+–) 31...fg4 (31...Rh7 32.gf5 gf5+–) 32.Bg4 Ke7 33.f4 (better is 33.Rb1 Bc5+–) 33...Rb5 34.Bd4 Rb8 (34...Bc5 35.Re1+–) 35.f5 (35.Ra1!? Rb7+–) 35...gf5 36.Bf5 (36.Rf5 Rb5+–) 36...Rf8 (36...Bg3 37.Bg6+–) 37.g4 Rf7 (37...Rg8 38.Rb1+–) 38.Bg6 (better is 38.g5 Rf8 39.g6 Rg8+–) 38...Rf8 (38...Bh2 39.Kg2 Rf1 40.Kf1+– (< 40.Kh2 Rf2 41.Kg3 Rf1+–)) 39.Rf8 Kf8 40.Bg7 (better is 40.Bf5 Be7 41.Be6+–) 40...Ke7?? (41.g5 Ke6+–; better is 40...Kg7 41.Bf5 Kf6=) +–. maaxa – oooo, Live Game Caissa's Web, 2004.

5.Nf3 Be7

6.c4 dc4 7.Bc4 0–0 8.d4 h6 9.0–0 Bc6 10.Nbd2 Nbd7 11.Qc2 a6 12.Bd3 Rc8 13.Ne4 Be4 14.Be4 b6? (better is 14...Ne4!? 15.Qe4 c6=) 15.Bb7+/– Rb8 16.Ba6 (16.Qc6+/–) 16...Ra8 (16...b5 17.Ne5 Rb6=) 17.Bb7 Ra7 18.Bc6 Bd6 19.h3 (19.e4 Be7+–) 19...Nb8 20.Bb5 Nd5 21.Bc4 Nf6 22.Rfd1 c6 23.e4 b5 24.Bd3 Be7 25.Ne5 Qc7 26.Rac1 Bd6? (better is 26...Rc8+–) 27.Nc6 Nc6 28.Qc6 Qc6 29.Rc6 Be7 30.e5 Nd5 31.Bb5 Rc8 32.Rc8 Kh7 33.Bd3 g6 34.Be4 Rc7 35.Rc7 Nc7 36.Rc1 Nb5 37.Bd3 Bg5 38.Bb5 Bc1 39.Bc1 Kg7 40.a4 Kf8 41.a5 Ke7 42.a6 Kd8 43.a7 Kc8 44.a8Q Kc7 45.Qc6 Kd8 46.Qd7 1–0. Fournier,Frederic – pespincano, Active, 2008.

6.Be2 Nc6 7.d4 Ne4 8.0–0 Ng5 (8...0–0 9.c4=) 9.Nbd2 a6 10.c4 0–0 11.Rc1 dc4 12.Bc4 b5 13.Bd3 f5 14.Nb3 Bf6 15.Nc5 Bc8 16.Ng5 Bg5 17.Ne6! Be6 18.Rc6 Bd5 19.Rc5 (19.Rc1 Qd7+/–) 19...Be7 20.Rc1 Qd6 21.Qc2 Rac8?? (better is 21...Qg6 22.f3 Bg5+/–) 22.Bf5+– Rcd8 23.Bh7 Kh8 24.Be4 Bc4 25.Bd3 Bd3 26.Qd3 Rc8 27.Rc5 g6 (27...Qh6 28.Rc2 Rce8+–) 28.d5 (28.Rc6! Qc6 29.d5 Qf6 30.Bf6 Rf6+–) 28...Bf6 29.Rc6 Qe7 30.Bd4 Qg7 (30...Bd4 31.Qd4 Kh7 32.Rfc1+–) 31.Bc5 Rf7 32.e4 Ra8 (32...Qh7 33.f4 Bg7 34.Rf3+–) 33.f4 Rd8 34.e5 Bh4 35.Rg6 Qh7 36.f5 Rg8 37.Rf4 (better is 37.Qd4 Rg6 38.e6 Bf6 39.fg6 Qg7 40.gf7 Bd4 41.Bd4 Qd4 42.Kh1 Kg7 43.f8Q Kg6 44.e7 Qg7 45.e8Q Kh6 46.Rf6 Kg5 47.Qg7 Kh4 48.Qg3#) 37...Rfg7 38.Qd4 Bg5 39.Rg7 (39.Rg5 Rg5 40.Rh4 Rg2 41.Kf1 Rg1 42.Ke2 R1g2 43.Kf3 Rh2 44.e6 Rg7 45.Rh7 Kh7+–) 39...Qg7 40.Rf2 Qh6 41.f6 Bh4 42.Rf1 Qg5 43.Qe4 Qg4 44.Qg4 Rg4 1–0. onny555 (1635) – faustix, gameknot.com, 2009.

4...Nbd7

5.c4 a5 6.c5 c6 7.Nc3 g6 8.f4 Bg7 9.Nf3 0–0 10.Be2 b6 11.cb6 Nb6 12.0–0 Nfd7 13.Na4 Bb2 14.Nb2 Qf6 15.Nd3 (15.d4 Ba6+=) 15...Nc4 16.Nc5 Nc5 17.bc5 Qe7 18.Bc4 dc4 19.Ne5 Qc5 20.Qc2 Rd8 21.d4 (21.Nc4 Ba6 22.Rfc1 Qc4 23.Qc4 Bc4 24.Rc4 Rd2–/+) 21...Qd5 22.Nc4 (worse is 22.Qc4 f6 23.Qd5 cd5=) 22...Rb8 23.Ne5 Bb7 24.Rfc1 Kg7 25.Qc5 Qe4 26.Kf2 Ba6 27.Qc2 Qd5 28.Rab1 Rb1 29.Qb1 Bb5 30.Rc5 Qd6 31.Qe4 Rb8 32.Nc6 Bc6+= 33.Rc6 Rb2 34.Kf3 Qa3 35.Qe5 Kh6 36.Qg5 Kg7= 37.Qe5 ˝–˝. Rabbitte,L (2030) – Merriman,J (2250), Barcelo Lancashire Open, 2011.

5.c4 c6 6.d4 Bd6 7.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7 6.c4 c6 7.d4).

5.c4 Bd6 6.c5= Be7 7.Nf3 0–0 8.d4 Ne4 9.Nbd2 c6 10.Bd3 Ndf6 11.Qc2 Nd2 12.Nd2 Bd7 13.0–0 Qc7 14.e4 de4 15.Ne4 Ne4 16.Be4 f5 17.Bf3 Bg5 18.Qc3 Bf4 (18...Rad8 19.Rfe1+=) 19.g3 (19.d5!? Bh2 20.Kh1+/–) 19...Bg5 20.h4 Bf6 21.Rfe1 Rac8 (21...f4 22.Be4=) 22.Rad1 (22.Bc1!?+/–) 22...f4+= 23.g4 (23.Be4 fg3 24.fg3 Be8+=) 23...Bh4= 24.Kg2 Qd8 25.Rh1 Rf7 26.Rh3 Bf6 27.Rdh1 g6 28.Qd3 Qe7 29.Be4 Be8?? (29...Kf8 30.Rh6 Rg7 31.Qf3=) 30.Bc1?? (better is 30.Bg6 Rg7 31.Bh7 Kf7 32.Kf3+–) 30...Qc7 (better is 30...Qd8 31.Bf4 Bd4=) 31.Bg6?? (better is 31.g5 Bg5 32.Bg6+/–) 31...hg6–/+ 32.Qg6 Kf8 33.g5 Bd4 34.Qe6 f3 35.Kf1 Kg8? (35...Qe5 36.Rh8! Qh8 37.Rh8 Bh8=) 36.g6+– (36.g6 Bg7 37.Rh7 Qe5 38.gf7 (38.Qc8 Qe2 39.Kg1 Qe1 40.Kh2 Qf2 41.Kh3 Qg2 42.Kh4 Bf6 43.Bg5 Qg5 44.Kh3 Qg2) 38...Kf8 39.Rg7 Qe2 40.Kg1 Qe1 41.Qe1 Kg7 42.Qe5 Kf8 43.Qf6 Bf7 44.Rh8) 1–0. Fournier,Frederic – COMP Now, France (FRA), 2000.

5.c4 Be7 (--> 4.a3 Be7 5.c4 Nbd7).

5.c4 g6 6.Nf3 Bg7 7.cd5 ed5 8.Be2 0–0 9.0–0 Nb6 10.d3 Bd7 11.a4 (11.Bd4 a6+=) 11...a5 12.b5 c6 13.bc6 Bc6 (13...bc6 14.Ne5=) 14.Nc3 Nh5 15.d4 (15.g3+=) 15...f5? (15...Nc4!? 16.Qb3 Rc8=) 16.Ne5 (16.Qb3 Kh8+/–) 16...Be5 17.de5 Ng7 (17...Nc4 18.Rb1 (18.Bh5?! Nb2 19.Qe2 Nc4=) 18...Ne5 19.Qd4+/–) 18.g3 (18.Ba3!? Re8+/–) 18...Ne6 (18...Nc4 19.Qc2 Qc7 20.Nd5 Bd5 21.Rfd1+/–) 19.Nb5 (better is 19.Ba3 Rf7 20.Qb3+/–) 19...f4? (better is 19...Nc4 20.Ba3 Na3 21.Ra3 Qe7+/–) 20.ef4+– d4? (20...Nc4 21.Bc3 Bb5 22.ab5 Re8+–) 21.Nd4 Nf4 (21...Nd4 22.Bd4 Qd5 23.f3+–) 22.Nc6 (better is 22.gf4 Rf4 23.Nc6 bc6+–) 22...Ne2 23.Qe2 bc6 24.e6 Qc7 (24...Rf5+–) 25.e7 Rfe8 (25...Nd5 26.ef8Q Rf8 27.Qe6 Rf7+–) 26.Qe6 1–0. Ilovenko,Ruslan – Badalian,Daniel, Novorossiisk RUS, Malaya Zemlya, 2014.

5.d3 a5 6.b5 =+.

5.d3 b6 6.c4 dc4 (6...Bd6 7.Nc3=) 7.dc4= Bb7 (7...a5 8.b5=) 8.Nf3 Bd6 (8...a5 9.b5=) 9.Nc3 (9.Be2 a5 10.b5 0–0=) 9...0–0 (9...a5 10.Nb5 Be7 11.Qb3=+) 10.Be2 Qe7 (10...a5 11.b5=) 11.0–0 (11.Nb5 a5=) 11...c5 12.b5 (12.Nb5 Bb8 13.Qb3 a6=) 12...Rfd8 (12...e5 13.Nh4 Qe6 14.Nf5=+) 13.Qc2= Ne5 (13...a6 14.Rad1=) 14.Ne5 Be5 15.f4 Bc7 (15...Bc3 16.Qc3 Be4 17.Rad1=) 16.Bf3 (16.Rad1 a6=) 16...Bf3 17.Rf3 Rd7 18.Rh3 (18.e4 Qd8 19.Bc1 a6=) 18...h6 (18...Rad8 19.Rd1=) 19.Rg3 (19.Rd1 Rad8=) 19...e5 (19...Rad8 20.Rd1=) 20.Ne4 Ne4 21.Qe4 Rad8 22.Bc3 (22.Rf1 Qe6=) 22...f6 23.f5 Rd3 ˝–˝. Dvorak,Tomas – Mach,M, Czech Fed–ch U16, 1997.

5.Bd3 Bd6 6.c4 (6.Nf3 e5 7.Bf5 e4=+) 6...Ne5 7.Be5 Be5 8.Nc3 (8.Ra2=+) 8...dc4 (8...d4 9.ed4 Bd4 10.Be2=+) 9.Bc4= 0–0 10.Nge2 (10.d4 Bd6=) 10...Qe7 (10...Ng4 11.d4 Bd6 12.Ng3=) 11.d4 Bd6 12.0–0 Bd7 (12...a5 13.Qa4=) 13.e4 e5 14.d5 (14.f4 ed4 15.Nd4 a5=) 14...c6 (14...a5 15.ba5 Ra5 16.Rb1=+) 15.f3 (15.dc6 bc6 16.Qd3 Rfd8=+) 15...Rfd8 (15...a5 16.dc6 bc6 17.ba5 Ra5 18.a4–/+) 16.Qb3 (16.dc6 Bc6 17.Qb3 a5=+) 16...a5 17.dc6 bc6–/+ 18.b5 cb5 19.Nb5 a4 20.Qa2 Bc5 ˝–˝. 73DADDELDU37 – Augarian, mySchach.de, 2005.

5.d4 a5 6.b5 =+.

5.d4 a6 6.c4 dc4 7.Bc4 b5 8.Ba2 (8.Bd3 Bd6= 9.Nf3 Bb7 10.0–0 0–0 11.Nc3 e5 12.Ne5 Ne5=) 8...Bb7 (8...a5 9.ba5 Bb7 10.Nf3 Ra5 11.Bc3 Ra7 12.Qe2 Bc6+=) 9.Nf3 Bd6 (9...a5 10.ba5 Ra5 11.Bc3 Ra7 12.Qe2 Bc6+=) 10.Nbd2 (10.0–0 a5= (10...0–0 11.Nc3 Nb6 12.Ne5 a5=) 11.Nc3 c6 12.Qb3 ab4=; 10.Nc3 0–0 11.0–0 Nb6 12.Ne5 a5=) 10...0–0 (10...a5 11.ba5 Ra5 12.Qe2 Qa8+=) 11.0–0 Ra7 (11...a5 12.a4+= ba4+=) 12.Rc1 (12.Qc2 a5=; 12.Bb1 Nb6=) 12...Qa8 (12...a5 13.ba5 Ra5 14.Bb1+=) 13.Nb3 Ng4 (13...Nb6 14.Na5=) 14.Nc5 Nc5 15.bc5 Be7 16.Ne1 Nh6 17.f3 Bg5 18.Qd3 Nf5 19.Nc2 Nh4 20.Rce1 (20.Bb3 Rd8=) 20...Bf3 21.gf3 Nf3 22.Rf3 Qf3 23.Re2 Rd8 24.Rf2 Qh5 25.Nb4 White prepares the advance d5 25...Raa8 26.Nc6 Rd7 27.Qe4 Re8 28.d5 Bh4 29.Rf4 f5 30.Qd3 Bg5 31.Rf3?? Kh8 32.Ne5= Rdd8 33.d6 cd6 34.cd6 Bf6 35.Bb3?? a5 36.Bd1?? Qh4? 37.Nf7+/– Kg8 38.Nd8 Bd8? 39.Qb5 Qg5 40.Kf1 Rf8 41.Rg3 f4 42.Rg5 (42.Rg5 Bf6 43.Bf6 Rf6 44.Qe8 Rf8 45.Qe6 Kh8 46.d7 fe3 47.Rf5 e2 48.Ke2 g6 49.Qe5 Kg8 50.Bb3 Rf7 51.d8Q#) 1–0. Vukovic,Ljubomir (1980) – Jovanovic,Ivan, Jezero Open, Belgrade YUG, 2003.

5.d4 b6 6.c4 c5 7.cd5 Nd5 (7...ed5 8.dc5 (8.bc5 bc5 9.dc5 Rb8 10.Bd4 Nc5 11.Nc3 Nce4 12.Nge2 Bd7 13.Ra2 Bc5=; 8.Qa4 c4 9.Nc3 Bb7 10.Nf3 Bd6 11.Be2 0–0 12.Nh4 Rc8 13.Rc1 a6=) 8...bc5 9.Nc3 Rb8 10.Nd5 Nd5 11.Qd5 cb4 12.Qe4 Qe7 13.Qe7 Be7=) 8.bc5 (8.dc5 bc5 9.b5 Bb7 10.Nf3 Rc8 11.Nbd2 Qa5 12.Qb3 N5b6 13.Bc3 Qa4=; 8.e4 N5f6 9.bc5 bc5 10.Nd2 cd4 11.Bd4 e5 12.Bc3 Bc5 13.Bc4 Qe7+=; 8.b5 cd4 (8...Bb7 9.Nf3 a6 10.ba6 Ba6 11.Ba6 Ra6 12.0–0 c4 13.e4 Nf4=; 8...Be7 9.e4 Nf4 10.g3 Ng6 11.dc5 Bf6 12.e5 Nge5 13.c6 Nc5=; 8...a6 9.Nc3 ab5 10.Nd5 ed5 11.Bb5 Qf6 12.Ne2 Bb7 13.Nf4 c4+=; 8...a5 9.Nf3 Bb7 10.Nbd2 Rc8 11.Rc1 N7f6 12.Nc4 Be7 13.Bd3 cd4+=) 9.Bd4 e5 10.Bb2 Bb7 11.Nf3 e4 12.Nd4 Rc8 13.Nd2 Nc3=) 8...bc5 9.Nf3 Bb7 (9...Rb8 10.Ra2 Ba6 11.Ba6 Qa5 12.Nbd2 Qa6 13.Qe2 Rb6=) 10.Be2 (10.dc5 Rc8= 11.Nbd2 Nc5 12.Bb5 Bc6 13.Bc6 Rc6=) 10...N5f6 (10...Qb6 11.Qd2 (11.Qc2+= Rc8 12.dc5 Bc5 13.Nc3 Be3–/+) 11...Rb8 12.dc5 Nc5 13.Bd4 a6=; 10...Rb8 11.Qd2 Qb6 12.dc5 Nc5 13.Bd4 a6=) 11.0–0= a6 (11...Rb8 12.Bc3= Qc7 13.Nbd2 Nd5=) 12.Nbd2 cd4 (12...Be7 13.Rc1= (13.Bd3 cd4=) 13...0–0=) 13.Bd4+= Bc5 14.Nb3 (14.Rb1 Bd5+=) 14...Bd4 15.Nbd4 0–0 16.Rb1 Nc5 17.Nb3 Nb3 18.Rb3 Qe7 19.Qa1 Bd5 20.Rb6 Rfb8 21.Ra6 (21.Rb8 Rb8 22.Rc1 a5=) 21...Ra6+= 22.Ba6 Ra8 (22...Bf3 23.gf3 Ra8 24.Qc3=) 23.Be2 Qa3 ˝–˝. Krc,Milan – Dupak,Jaroslav (1985), Open, Znojmo CZE, 2005.

5.d4 c6 6.Bd3 Bd6 7.Nd2 a5 8.b5 e5 9.de5 Be5 10.Be5 Ne5 11.bc6 bc6 12.Ngf3 Bg4 13.h3 Bh5 14.Be2 Bf3 15.Nf3 Nf3 16.Bf3 0–0 17.c4 dc4 18.0–0 Rc8 19.Rc1 Qb6 20.Rc4 Rfd8 21.Qc2 c5 22.Rc1 Nd7 23.Bg4 Ne5 24.Rc5 Rc5 25.Qc5 Qc5 26.Rc5 Ng4 27.hg4 Ra8 28.Kf1 Kf8 29.Ke2 Ke7 30.Kd3 Kd6 31.Kc4 Ra7 32.Rh5 h6 33.Kb5 a4 34.Kb4 Re7 35.Rc5 Ra7 36.Ra5 Rb7 37.Ka4 Rb2 38.Rf5 Ke6 39.Ka5 g6 40.Rf4 g5 41.Rf5 Rb8 42.Rb5 Ra8 43.Kb4 Kd6 44.a4 Kc6 (44...Rc8 45.a5 Rc2 46.a6+–) 45.a5 Kc7 46.Rb6 Rh8 47.Kb5 h5 48.Rc6 (48.a6 hg4 49.Rb7 Kc8 50.Rf7 Kb8+–) 48...Kb7 49.a6 Kb8 50.gh5 Rh5 51.Kb6 Rh8 52.Rc5 (52.Rf6!? Rf8+–) 52...Rh6 53.Rc6 Rh8 54.Rd6 Rf8 55.Rd5 f6 56.a7 Ka8 57.Kc7 Rf7 58.Rd7 (58.Rd7 Rf8 59.Rd8 Rd8 60.Kd8+–) 1–0. Seslavin,Maxim (1960) – Silin,Sergey (1880), Novokuznetsk RUS, Summer Open, 2013.

5.d4 Be7 6.Nf3 0–0 7.c4 a6 8.Nc3 c6 9.c5 Qc7 10.Bd3 e5 11.de5 Ne5 12.Ne5 Qe5 13.Na4 Qc7 (13...Qg5!? 14.Qf3 Bg4=) 14.Nb6+/– Rb8 15.Qc2 (15.Nc8 Rfc8 16.Bd4 Re8+/–) 15...Bd7 (15...Be6 16.Bd4+=) 16.0–0–0 (16.Nd7 Qd7 17.Be5 Rbe8+/–) 16...Bc8 (16...h6 17.h3+=) 17.h4 Ne4? (better is 17...a5+=) 18.Be4+– de4 19.Qe4 Be6?? (19...Bf6 20.Bf6 gf6+–) 20.Qe5 (better is 20.Be5 Bd5 21.Qf4+–) 20…Bf6?? (better is 20...Qe5 21.Be5 Rbe8+–) 1–0. serbiansaint – jury, Caissa's Web, 2004.

5.Be2 a6 6.Nf3 Be7 7.0–0 0–0 8.c4 c6 9.c5 b6 10.Nd4 Bb7 11.cb6 Nb6 (11...c5 12.bc5 Bc5 13.Nb3=) 12.Qc2+= Rc8 13.Nc3 (13.Nb3!?+=) 13...c5= 14.bc5 Bc5 15.Nf3 Ne4 16.Qb3 Rb8 17.Ne4 (17.Rfc1 Bd6=) 17...de4+= 18.Qc3 f6 19.Ng5? (better is 19.Nd4!? Bd4 20.Qd4+=) 19...Na4–+ 20.Qc2 fg5 (20...Nb2 21.Ne6 Qd5 22.Nf8+–) 21.Qa4 (better is 21.Be5 Qd7 22.Bb8 Rb8 23.Rab1–/+) 21...Bd5?? (better is 21...Qd2 22.Ba6 Ba6 (22...Qb2?! 23.Rab1 Qb1 24.Rb1 Ba6 25.Qe4–/+) 23.Qa6 Rb2 24.Qe6 Kh8 25.Qe4 Qc3–+) 22.Bc3 Qc7 23.Qd1 (23.Qa6? Ra8 24.Ba5 Qa5 (24...Ra6 25.Bc7 Ra3 26.Ra3 Ba3 27.d4=) 25.Qa5 Ra5–+) 23...a5 24.a4 Bd6 25.h3 e5 26.Bb5 Be6 27.Rc1 Qe7 (27...Rfc8!?=) 28.Ba5+/– Qf6 29.Qe2 Qg6 (29...Rfc8 30.Rc6 Bd5 31.Rc8 Rc8 32.Bc3+/–) 30.Rc6 Be7?? (30...Bd7 31.Ra6 Bc8 32.Qc4 Rf7 33.Rd6 Qd6 34.Be8+–) 31.Bc3 (better is 31.Re6 Bf6+–) 31...Qf6?? (better is 31...Rbc8+–) 32.Bc4 (better is 32.Re6 Qe6 33.Bc4+–) 32...Bc4 33.Qc4 (33.Rc4?! Qa6 34.Re1 Qg6+–) 33...Qf7 34.Qe4 Bf6 35.Qc4 Qc4 36.Rc4 Ra8 37.a5 Rfd8 38.Ra1 h6 39.Ra2 Kh7 40.Rc7 Rd6 41.Rc5 Rda6 (41...e4 42.f3 Bc3 43.Rc3+–) 42.Be5 Be5 43.Re5 g6 44.d4 h5 (44...Kg7 45.Kf1+–) 45.Kf1 Kh6 46.Ke2 Rd6 47.Rc5 Raa6 48.Kd3 Rf6 49.f3 Rf5 50.e4 Rf4 51.Rb5 g4 52.Ke3 Rff6 53.e5 Rf5 54.f4 gh3 55.gh3 h4 (55...g5 56.Rf2 Ra8 57.Rb6 Kh7 58.a6+–) 56.Rb6 Ra8 (56...Rb6 57.ab6 Rf8 58.d5+–) 57.a6 Rf7 58.Ke4 (better is 58.Rg2 Rg8+–) 58...Kh5 (58...Raf8 59.Rf2 Kg7 60.d5+–) 59.d5 (better is 59.Rb7 Rf4 60.Kf4 g5 61.Kf5 Rf8 62.Ke6 Ra8+–) 59...g5 (59...Raf8 60.Rf2+–) 60.fg5 Kg5 (60...Rf1 61.Rg2 Re1 62.Kd3 Ra6 63.Ra6 Re3 64.Kc4 (64.Ke3?!) 64...Rc3 65.Kb5 (65.Kc3?!) 65...Rc5 66.Ka4 (66.Kc5?!) 66...Rc4 67.Ka3 Rc3 68.Ka2+–) 61.e6 (61.Rg2 Kh5 62.Rbg6 Rf5 63.Kf5 Rf8 64.Rf6 Rf6 65.ef6 Kh6 66.Rg6 Kh7 67.a7 Kh8 68.a8Q Kh7 69.Qg8) 61...Rc7 62.Ra3 Kf6 (62...Rc1 63.a7 Kf6 64.Rb8 Rc4 65.Kd3+–) 63.Rf3 Kg7 64.Ke5 Rca7 (64...Kg8 65.Rb7 Rc2 66.a7 Ra7 67.Ra7 Rb2 68.Rff7 Rb8 69.Rg7 Kh8 70.Rh7 Kg8 71.Rag7 Kf8 72.Kf6 Ke8 73.Rh8) 65.Rf7! Kg8 (65...Rf7 66.ef7 Passed pawn) 66.Ra7 Ra7 (66...Rd8 67.Rf7 Re8 68.a7 Kh8 69.Rb8 Rg8 70.Rg8 Kg8 71.a8Q) 67.d6 1–0. mikebaldini – fairpoint, gameknot.com, 2014.

5.Be2 Bd6 6.Nf3 a5 7.b5 e5 8.0–0 0–0 9.c4 dc4 10.Bc4 e4 11.Nd4 Bh2 (better is 11...Ne5 12.Be2 Qe7=) 12.Kh1?? (better is 12.Kh2 Ne5 13.Be2 Nfg4 14.Bg4 Ng4 15.Kg3=) 12...Ne5 13.Be2 Nfg4 14.g3 Qg5 15.Kg2 Nf2! 16.Rf2 (16.Rf2 Nd3 Double attack (16...Nd3 Decoy); 16.Kf2 Qg3) 16...Qg3 17.Kh1 Qf2 18.Qf1 Qh4 19.Qg2 Bg3 20.Kg1 Bh3 21.Qh1 Bf2 22.Kh2 Qg3 0–1. mikebaldini (1685) – jww66 (1900), gameknot.com, 2014.

5.f3 a6 6.Bf6 (6.g4 h6+=) 6...Nf6 7.Nc3 g6 (7...Bd6!?–/+) 8.Nge2 Bg7 9.g3 b6 10.Nd4 Bb7 11.Be2 0–0 12.d3 (12.Nb3 e5–/+) 12...b5 (12...e5!? 13.Nb3 d4–+) 13.Qd2 h6 14.e4 (14.Nb3 e5+=) 14...Rc8 (14...de4 15.de4 c5 16.bc5 Ne4 17.Ne4 Be4 18.Rd1–/+) 15.0–0–0? (better is 15.e5!?+=) 15...c5–+ 16.Ne6? (better is 16.Nb3 cb4 17.ab4–+) 16...fe6 17.h4 (17.e5 d4 18.Ne4 Ne4 19.fe4 Qc7–+) 17...de4 (17...Nh5 18.bc5 Ng3 19.Rh2–+) 18.Ne4 (18.de4 Qc7 19.Na2 cb4 20.Nb4 Nh5–+) 18...cb4 (18...Ne4 19.de4 Qf6 20.Qe3 Qb2 21.Kd2 cb4 22.Bd3–+) 19.Nf6 (19.Qb4 Qc7 20.Rd2 Ne4 21.de4 Bc3–+ (worse is 21...Qg3 22.Qd6 Be5 23.Qe6 Kh8 24.Rd3–+)) 19...Qf6 20.ab4 (20.d4 ba3 21.h5–+) 20...Qb2 0–1. nimzou (1745) – beammeupscotty (2160), net–chess.com, 2014. (=1.a3 d5 2.b4 e6 3.Bb2 Nd7 4.e3 Ngf6)

5.Nf3 a5 =.

5.f4 Nb6 6.Nc3 Bd7 7.Nf3 c5 8.bc5 Bc5 9.Ne5 0–0 10.g4 (10.Qf3 Rb8=) 10...d4 11.ed4 Bd4 12.g5 (12.Rb1 Nfd5 13.Nd5 Qh4 14.Ke2 Bb5 15.c4 Nc4 16.Bd4 Nb2 17.d3 Nd1 18.Rb5 ed5 19.Kd1 f6 20.Rb7 fe5 21.Be5 Rf7 (21...Qg4 22.Be2 Qg2 23.Rg7 Qg7 24.Bg7 Kg7 25.Rg1 Kh8 26.Rg5–/+) 22.Rf7 Kf7–+) 12...Bc3 (12...Ne4 13.Ne4 Bb2 14.Ra2 Be5 15.fe5–/+) 13.dc3 Nfd5 14.Qf3 Na4 Attacks the isolani on c3 15.Rb1 Nb2 16.Rb2 Qc7 (better is 16...Bc6!?–/+) 17.c4= Nb6 18.Bd3 Bc6 19.Qh3 (19.Nc6!? bc6 20.Qe4=) 19...g6+= 20.Rb6? (better is 20.0–0+=) 20...ab6 21.Ng4 h5 22.Nf6 Kg7 23.0–0 White prepares the advance f5 23...Ra3 24.f5? (24.Qe3 Rd8–+) 24...ef5 (24...Qe5 25.Qg3 Qg3 26.hg3 gf5 27.Nh5 Kg6 28.Nf4 Kg5 29.Nh3 Kf6 30.Kh2–+) 25.Qe3 Qd6 26.Qb6 Qe5 27.Qf2 Ra1 28.Ra1 Qa1 29.Bf1 Qe5 30.Qd2 (30.Be2 Ra8–+) 30…Qc5 (30...Qc5 31.Qf2 Qf2 32.Kf2 Rd8–+) 0–1. Pilotte,Benoit (1685) – Lopez,Jose Luis (1675), Sherbrooke Perpetuelles, 2003.

5.f4 Bd6 6.Nf3 =+.

5.f4 Ne4 6.Nf3= a5 7.b5 Be7 (7...f6 8.Be2=) 8.Bg7+= Rg8 9.Be5 c6 (9...Ne5 10.Ne5 Bf6 11.Qh5+=) 10.g3 (10.d3 Nd6+=) 10...Ne5 11.Ne5 Rg7 (11...Qb6 12.c4+=) 12.bc6+/– Qb6 13.cb7 Bb7 14.c4 (14.Qe2!?+=) 14...Qb2= 15.Qa4 Kf8 16.Qb5 Qa1 17.Qb7 Rd8 18.Nc6 Re8 19.Qb3 (19.Ne7!? f5 20.cd5 Rge7 21.Qb6+=) 19...a4=+ 20.Qc2 (20.Qd3 Rc8 21.cd5 ed5 22.Ne7 Ke7=) 20...Ba3 21.cd5 (21.Bg2 Rc8 22.cd5 ed5=+) 21...ed5= 22.Bb5 Qb2 (22...Ra8 23.0–0 Qb2 24.Ba4 Qc2 25.Bc2=) 23.Nd4 (23.Ba4 Qc2 24.Bc2 Bb2=) 23...Rb8=+ 24.Na3 Qa3 25.0–0 (25.Qc7 Qd6 26.Qd6 Nd6 27.Ba4 Rb1 28.Bd1 h6=) 25...Rg6 (25...Qc5 26.Qd3=+) 26.Rc1 (26.Ba4 Rgb6=+) 26...Rgb6= 27.Nf5 (27.Ba4 Rb4 28.Bb5 Rd4 (< 28...R8b5 29.Qc8 Kg7 30.Qg4 Kf8 31.Rc8 Ke7 32.Rc7 Kf8 33.Ne6 fe6 34.Qg7 Ke8 35.Qe7; 28...R4b5?! 29.Nb5 Rb5 30.Qc8 Kg7 31.Qg4 Kf6 32.Rc6 Ke7 33.Rc7 Kf8 34.Qd7=) 29.ed4 Rb5 30.Qc8 Kg7 31.Qg4 Kf6 32.Rc6 Ke7 33.Rc7 Kf8 34.Rc8 Ke7+–) 27...Nc3 (27...Qc1 28.Qc1 Rb5 29.Qa3 Rb4+=) 28.Bf1+/– Qc1? (28...Rf6 29.g4 Rf5 30.gf5+=) 29.Qc1+= Ne2 30.Be2 Rb1 31.Qf1 Rf1 32.Bf1 a3 33.Nd4 Rb2 (34.Bd3 a2–+) 0–1. Osthus,Reinhard – Woelfelschneider,Peter, TT–04 TSC, 2002.

5.f4 Be7 6.Bd3 (6.Nf3 0–0=) 6...a5 7.b5 0–0 8.Nf3 c5 (8...Nc5 9.Be2=+) 9.0–0= a4 (9...c4 10.Be2=) 10.Qe1 (10.Nc3 c4 11.Be2 Qb6=) 10...Ne4 (10...c4 11.Be2=) 11.Nc3 Nd6 (11...Ndf6 12.Ne5=) 12.Rb1 (12.Qg3 Bf6+=) 12...c4= 13.Be2 Qb6 (13...Nf5 14.Ne5=) 14.Qg3 Nf6 (14...Nf5 15.Qg4=) 15.Ne5 (15.Nd4 Nde4 16.Ne4 Ne4=) 15...Ra5 16.Bf3 (16.d3 Nf5 (16...Nb5?! 17.dc4 Nd6 18.Bd3=) 17.Qf2 Ne3 18.dc4 d4–+) 16...Nb5 17.Nb5 Rb5 (17...Qb5 18.Bc3 Qc5 19.Ba5 Qa5 20.Rf2=) 18.Bd4 Qa6 (< 18...Rb1 19.Bb6 Rb6 20.Ra1=) 19.Qg5 (19.Bb2 Rd8=+) 19...Bc5 (19...Rb1 20.Rb1 h6 21.Qg3=+) 20.Nc6 h6 21.Qg3 Bd4 22.Nd4 Rb6 23.Rfd1 Bd7 24.Ne2 Rc8 25.Qe1 Rcc6 26.Ra1 Rb2 27.Nd4 Rc7 28.Rdb1 Rb1 29.Rb1 Qd6 30.Rb4 Ne4 31.Qd1 f6 32.Ne2 Bc6 33.Qe1 Nc5 34.Qb1 e5 35.f5 Rd7 36.Qa2 b5 37.Qa1 Rd8 38.h3 Kh7 39.Rb1 d4 40.Bc6=+ d3 41.cd3 Qc6=+ 42.d4 Nb3 43.Qc3 ed4 44.Nd4 Qe4 45.Rb2 Nd4 46.ed4 Rd4 47.Qg3? Rd3 (48.Qg6 Kg8 49.Rb5 Rb3–+; 47...Qf5 48.Qb8–+) 0–1. Baumann,Heinz – Woelfelschneider,Peter, TT–16 ETC, 2005.

5.c4 b6

6.d3 a5 7.cd5 ed5 8.Qa4 =+.

6.d3 Bb7 7.cd5 Nd5 8.e4 N5f6 =+.

6.d3 Bb7 7.Nf3 c5 8.bc5 Bc5 9.cd5 Bd5 10.Nc3 =.

6.d3 Bb7 7.Nf3 Bd6 8.Be2 (8.cd5 ed5 9.Be2 c5=) 8...0–0 (8...dc4 9.dc4 a5 10.b5=) 9.Qc2 (9.0–0 c5=) 9...h6 (9...dc4 10.dc4 c5 11.b5=+) 10.Nbd2 (10.cd5 Nd5 11.b5 a6=) 10...Qe7 (10...c5 11.b5=) 11.0–0 (11.cd5 Nd5 (< 11...Bd5 12.e4+–) 12.Nc4 a6=) 11...Rac8 (11...c5 12.b5=) 12.d4 (12.e4 Bf4+=) 12...c5= 13.dc5 (13.Qa4 a6=) 13...bc5 14.b5 (14.Rfb1 Rfd8=) 14...Bc7 (14...e5 15.cd5 Bd5 16.Nc4=) 15.Qc3 (15.Rfd1 Rfd8=) 15...Qd6 (15...Rcd8 16.cd5 ed5 17.Rfd1=) 16.Bd3 Rfe8 17.e4 d4 18.Qc2 Ng4 19.h3 Nge5 20.Ne5 Ne5 21.f4 Nd7 22.e5= Qe7 23.Be4 Be4 24.Qe4 f6 25.Nf3 Rf8 26.Rae1 f5 27.Qd3= Rf7 28.Bc1 Nb6 29.Qc2 Qd8 30.Bd2 Na8 31.Qa4 Bb6 32.g3 Qd7 33.Ba5 Rb8 34.Rd1 Ba5 35.Qa5 Nb6 36.Rc1 Qb7 37.Nd2 Rc7 38.Rfe1 Ra8 39.Rc2 a6 40.Rb2 ab5=+ 41.Qb5 Ra3 42.Qb6?? Rg3 (43.Kh2 Qg2#) 0–1. Faas,Dominik – Kupsch,Wolfgang, Saarland–chC, 1993.

6.d4 Bb7 7.Nf3 c5 8.bc5 bc5 9.Nbd2 (9.Qa4 Qb6 10.Bc3 Bc6=) 9...Nb6 (9...Qa5 10.Rb1=) 10.dc5 (10.cd5 Qd5 11.Bb5 Bc6 12.Bc6 Qc6 13.dc5 Qc5 14.Bf6 gf6+=) 10...Bc5 11.Nb3 (11.cd5 Nbd5 12.Qa4 Kf8+=) 11...Na4 (11...Be7 12.cd5 Bd5 13.Bb5 Nbd7 14.0–0=) 12.Nc5 (12.Bf6 Qf6 13.cd5 0–0 14.Nc5 Qc3 15.Nd2 Nc5 16.de6 fe6=+) 12...Nc5 13.cd5 Qa5 14.Qd2 Qd2 15.Nd2 Bd5 16.Bf6 (16.f3 Rc8+=) 16...gf6= 17.Bb5 (17.f3 f5=) 17...Ke7 18.0–0 Rhg8 19.f3 f5 20.Rac1 Rac8 21.Rc3 Nd7 (21...Rc7 22.Rfc1 Rgc8 23.e4 fe4 24.fe4=) 22.Rfc1 Rc3 23.Rc3 Rb8 24.a4 Kd8 25.Kf2 Rc8 26.Rc8 Kc8 27.Ke2 Kc7 28.Kd3 Nc5 29.Kd4 Kd6 30.Be8 e5 31.Kc3 Ke7 32.Bb5 a6 33.Bc4 Kd6 34.Be2 Bc6 35.a5 Bb7 36.Nc4 Kd5 37.Nb6 Kc6 38.Bc4+/– f6 39.Bd5 Kc7 40.Bb7+= Kb7 41.Kc4 Kc7?? 42.Kd5 h6?? 43.Nc4 Nb7 (43...Nd7!? 44.f4 ef4 45.ef4+–) 1–0. Jozwik,A – Reszka,Malgorzata (1800), Poland–chT2 U18 Girls, 1996.

6.cd5 ed5 7.Bb5 Bb7 =.

6.cd5 ed5 7.d4 c5 8.bc5 bc5 9.Nc3 (9.dc5 Rb8 10.Bd4 Nc5=) 9...cd4 (9...Rb8 10.Bc1=+) 10.ed4 (10.Qd4 Rb8 11.Bb5 Qa5 12.Bd7 Kd7=) 10...Bd6=+ 11.Nf3 0–0 12.Be2 Nb6 13.Nd2 Re8 14.0–0 a5 15.h3 Ba6 16.Ba6 Ra6 17.a4 (17.Qf3 Nc4 18.Nc4 dc4=+) 17...Bb4 18.Qc2 Qd7 19.Qd3 (19.Rfc1 Ra7=+) 19...Raa8–/+ 20.Nb3 Nc4 21.Bc1 Rac8 22.Nd1 (22.Nb5 Ne4–/+) 22...Re7 (22...Ne4 23.Qf3–/+) 23.Bg5=+ Qd6 24.Ra2 Rce8 25.Ne3=+ Ne3 26.Be3 Ne4 27.Rc1 Nc3?? 28.Rc3+– Bc3 29.Qc3 Rc7 30.Qd2 Rb8?? 31.Nc1 Rb1+/– 32.Rc2 h6 33.Rc7 Qc7+= 34.g3 Rb4 35.Qa2 Qc6 36.Nd3 Ra4 37.Qb3 Ra1 38.Kg2 a4 39.Qb2 Rd1 40.Nb4 Qb5 41.Kf3 Qf1 42.Kg4 Rb1 43.Qc3 Qe2 44.Kf4 Rb3 45.Qc8+/– Kh7 46.Qf5 Kg8 47.Qc8 Kh7 ˝–˝. Andersson,Lars H – Jordahl, Sweden (year?).

6.cd5 ed5 7.d4 Bd6 8.Nf3 =.

6.cd5 ed5 7.Nf3 a6 =.

6.cd5 Nd5 7.Bb5 Bb7 =.

6.Nf3 Be7 7.cd5 ed5 8.Nc3 0–0 9.Be2 c5 10.b5 (10.0–0 g6=) 10...Bb7 11.0–0 Bd6 12.d4 c4 Black gains space 13.a4 Qe7 14.Qc2 g6 15.Nh4 (15.h3 Qd8=) 15...Rfe8 16.Bf3 Qd8 17.g3 Secures f4 17...Nf8 18.Bg2 ˝–˝. Weigel,Hans Juergen (1955) – Weise,Martin2, EU–chT Seniors, 2001.

5.c4 dc4

6.Bc4 Bd6 7.Nc3 0–0 8.Nf3 c5 (8...Nb6 9.Be2=+) 9.bc5= Bc5 10.0–0 Qa5 (10...Nb6 11.Be2=) 11.d4+= Be7 12.Qd2 b6 13.Qe2 (13.Rfd1 Bd6+=) 13...Bb7= 14.e4 Rac8 15.Rfc1 Qh5 16.Ba6 Ba6 17.Qa6 Qg4 (17...Rc7 18.e5 Ng4 19.Ne4=) 18.Re1 (18.Qa7!? Rfd8 19.Qb7+/–) 18...Nh5= 19.Qf1 (19.Qa7 Nf4 20.g3 Qf3 21.gf4 Bh4=+) 19...Nf4 20.Rad1 Rfd8 21.Kh1 (21.Re3!?=) 21...Ba3!–/+ 22.Ba1 (22.Ba3 Rc3) 22...Bb4 23.Re3 Qh5 24.g3 Ng6 25.Ne2 a5 26.h4 Qb5 27.Qh3 Nf6 28.d5–/+ ed5 29.e5?? Ne4 30.Kg2 Qe8 31.h5 Nf8 32.h6 Qe6 33.Qh4 Qh6 34.Qh6 gh6 35.Nfd4? Ne6 36.Nf5 Bf8 37.f3 N4c5 38.f4 d4?? 39.Nfd4 Nd4 (Black gets in control) 40.Rd4 Ne6 41.Rd8 Rd8 42.Nc3 Bc5 43.Rf3 Bd4 44.Rd3 f5 45.ef6 Bf6 46.Rd8 Nd8 47.Bb2 Kf7 48.Kf3 Nb7 49.Ke4 Nc5 50.Ke3 h5 51.Kd2?! Bc3 (52.Kc3 h4 53.gh4 Na4 54.Kc2 Nb2–+) 0–1. Blumenberg,Walter – Niesel,Matthias, Porz op, 1990.

6.Bc4 Bd6 7.Nf3 =.

6.Bc4 Be7 7.d4 0–0 8.Bd3 b6 9.Nf3 Bb7 10.Nbd2 c5 11.bc5 bc5 12.0–0 cd4 13.ed4 Nd5 14.Rc1 N7b6 15.Re1 Nf4 16.Bf1 Bf6 17.Ne4 Be4 18.Re4 Nbd5 19.g3 Ng6 20.Re2 Qb6 21.Rec2 Rfd8 22.Qe2 Rab8 23.Qe4 Nde7 Increasing the pressure on the isolated pawn on d4 24.g4 Nh4 25.Nh4 Bh4 26.f4 Bf6 27.Re2?? (27.Rd2 Qd6 28.Rcc2 Nd5+=) 27...Qa5?? (better is 27...Bd4 28.Bd4 Rd4–+ (28...Qd4?! 29.Qd4 Rd4 30.Rc7–/+)) 28.Rf2?? (better is 28.Kh1+=) 28...Rb2!–+ 29.Rc5 (29.Rb2 Bd4 Decoy) 29…Qb6 (29...Qb6 30.Rb2 Qb2–+) 0–1. Organisciak,Wojciech (2030) – Janzer,Hubert (1815), V Otwarte Mistrzostwa Rzeszowa Poland, 2012.

6.Bc4 Be7 7.Nf3 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2 c5 11.bc5 Nc5 12.d4 Nce4 13.Ne4 Ne4 14.Bd3 Qd5 15.Be4 Qe4 16.Rc1 g5 17.Qc2 Qg4 18.h3 Qh5 19.Qd1 g4 (better is 19...Rfc8!?+=) 20.Nh2 Bg2 21.Kg2 Qh3 22.Kg1 f5 23.Qb3 Rf6 24.Rc6 Rh6 25.Rfc1 (25.Qe6 Re6 26.Re6–+) 25...g3 26.fg3 Qh2 27.Kf1 Qh1 28.Ke2 Qe4 (better is 28...Rh2 29.Kd3 Qe4 30.Kc3 Qe3 31.Kc4 b5 32.Kb5 Qb3 33.Ka6 Rb2 34.Rc8 Kf7 35.Rf8 Rf8 36.Ka7 Qa3) 29.Rc8 Kf7 (29...Kf7 30.Rf8 Rf8–+) 0–1. Hal1958 – M_L, playchess.de, 2005.

6.Bc4 Be7 7.Nf3 0–0 8.d4 Nb6 9.Bd3 Nbd5 10.Qc2 c6 11.Ne5 a5 12.ba5 Qa5 13.Nd2 h6 14.h4 c5 15.g4 cd4 16.Bd4 Nd7 17.Nec4 Qa4 18.Bh7 Kh8 19.Qa4 Ra4 20.Bc2 Ra8 21.g5 h5 22.Ne4 b5 23.Ncd2 (better is 23.Ncd6+=) 23...Ra3–/+ (23...Ba3 24.Bb2 b4 25.Nc4+=) 24.0–0 Bb7 25.Bb2 Ra1 26.Ra1 Kg8 27.Ng3 g6 28.Ra7 Rb8 29.e4 Nb4 30.Bb1 Nc6 31.Ra1 Nde5 32.Nb3? (better is 32.Kf1–/+) 32...Nf3–+ 33.Kf1 Nh4 34.f4 e5! 35.Bc1 (35.Be5 Ne5 Combination; 35.fe5 Nf3 Double attack (35...Bg5 Deflection; 35...Nf3 Decoy)) 35...Nf3 36.Ne2 ef4 37.Bf4 Re8 (37...Bg5 38.Bb8 Nb8 39.Ra7=) 38.Bd3 b4 (38...Ng5?! 39.Bb5 Ne6 40.Bh2–+) 39.Kf2 Ng5 40.Bh2 (40.Ke3 Bd8 41.Bd6 Bb6 42.Bc5 Ne4 43.Be4 Re4 44.Ke4 Na5 45.Kd3 Nb3 46.Ra8 Ba8 47.Bb6 h4–+) 40...Bf6 41.Rc1 Ne5 42.Bb5 Ne4 43.Kf1 Rd8 44.Nbd4 Nd2 (44...Nd2 45.Kg1 Ndf3 46.Nf3 Nf3 47.Kg2 Nd4 48.Kf2 Nb5–+) 0–1. Furseev,Evgeniy – Soloviova,Elizaveta (2045), Rodatychi op, 2006.

6.Bc4 Nb6

7.Ba2 a5 8.b5 +=.

7.Ba2 c5 8.bc5= Bc5 9.Nf3 0–0 10.0–0 Bd7 11.Nc3 Qe7 12.Ne5 Rad8 (12...Rac8 13.Qe2=) 13.Nd7 (13.Bb1 Bc6+=) 13...Rd7= 14.Qc2 Nbd5 (14...Rc8 15.Rfc1=) 15.Nd5 Nd5 (15...ed5? 16.Bf6 gf6 17.Bb1+–) 16.Bb1 (16.Rfc1 Rc7 17.Qe4 Rd8=) 16...g6 17.Ba2 Bd6 18.g3 Rc7 19.Qa4 b5 (19...Bc5 20.Rfc1=) 20.Qd4+/– f6 21.Bd5 Be5 22.Be6 Qe6 23.Qe4 Qc4 24.Qc4 (24.d4 Bd6+/–) 24...bc4 25.Be5 fe5 26.Rab1 (26.Rfc1 Rd8 27.Ra2 Rd3+/–) 26...Rd8 27.Rfd1 Rd3 28.a4 Ra3 29.Rb5 Ra4 30.Re5 Ra2 31.Rd5 (31.Re4 a5+=) 31...a5= 32.Rc1 a4 33.Rd4 Exerts pressure on the isolated pawn 33...a3 34.Rdc4 Rc4 35.Rc4 Rd2 36.Ra4 a2 37.Kg2 Kf7 38.Ra6 Ke7 39.Kf3 Kd7 40.h4 Kc7 41.e4 Kb7 42.Ra4 Kb6 43.Ke3 Rb2 44.f3 (44.e5!?=) 44...Kb5–/+ 45.Ra8 (better is 45.Ra7–/+) 45...Kb6?? (45...Kb4 46.e5 Rb3 47.Kd4 Ra3 48.Rb8 Ka4+=) 46.Kf4 Kc5 47.Kg5 Rg2 48.Kh6 Kb4 49.g4 Rh2? (better is 49...g5!? 50.h5 Rc2+=) 50.Kh7+/– Rh4?? (better is 50...Rc2!?+/–) 51.Kg6+– Rh2? (51...Kb3 52.e5 Rh3+–) 52.e5 Kb3 (52...Re2 53.Kf5+–) 53.f4 (53.f4 Rh4 54.Ra2 Ka2 55.Kf5+–) 1–0. Ivanets,Vladimir (2185) – Lyubokhiner,Leonid M (1770), Moscow Open E, 2011.

7.Bb3 a5 8.ba5 Ra5 9.Nc3 +=.

7.Bb3 a5 8.b5 a4 9.Ba2 Ne4 10.Qc2 Nd6 11.Nc3 Qg5 12.g3 Bd7 b5 seems the pivot of the position 13.f4 Qg6 14.Rc1? (better is 14.e4!?–/+) 14...Qc2–+ (worse is 14...Bb5 15.e4–/+) 15.Rc2 Bb5 16.Nf3 Bd3 17.Rc1 Nbc4 18.Bc4 Nc4 (18...Bc4?! 19.d4–/+) 19.Nd1? (19.Nb5 Rc8 20.Na7–+) 19...Nb2 (19...Ba3?! 20.Ba3 Na3 21.Nf2–+) 20.Nb2 Be4 (20...Ba3?! 21.Nd3 Bc1 22.Nc1–+) 21.0–0 (21.Rc7 Ba3 22.Nc4 Be7–+ (22...Bf3?! 23.Rf1–+)) 21...Ba3 22.Ng5 Bb2 23.Ne4 Bc1 24.Rc1 a3 25.Nc3 Kd7 26.Kf2 Rhb8 27.Nb5 Ra5 28.Rc7 (28.Nd4 a2 29.Ra1 b5–+) 28...Kd8 29.Rf7 Rb5 0–1. combijack (1795) – boirix (1725), gameknot.com, 2009.

7.Bb3 Bd7 8.Nc3= c5 (8...a5 9.b5=) 9.b5 (9.bc5 Bc5 10.Nf3 0–0=) 9...Be7 (9...Bd6 10.Nf3+=) 10.Nf3= 0–0 11.Qc2 (11.0–0 c4 12.Bc2 a6 13.ba6 Ra6=) 11...Nfd5 (11...c4 12.Ba2+=) 12.Nd5= Nd5 13.Bc4 Bf6 (13...a6!? 14.ba6 b5=) 14.Ne5 Be8 15.Bd3 Qd6 16.f4 g6 (16...Qb6 17.0–0 Be5 18.Be5+=) 17.Ng4 (17.0–0 Qb6 18.Rab1 Be5 19.Be5 f6+=) 17...Bb2= 18.Qb2 h5 (18...f6 19.0–0+=) 19.Ne5 (19.Nf2 f5+=) 19...Nc7 (19...Nf4 20.ef4 f6 21.Ng6 Qd3 22.Nf8 Bb5 23.0–0–0 Rf8 24.Rde1 Qc4 25.Qc2+=) 20.Be2 (20.0–0 f6 21.Ng6 Qd3 22.Nf8 Qd6+/–) 20...f6 21.Nf3 Rd8 (21...Qb6 22.a4+=) 22.0–0 a6 (22...Rf7 23.Rac1+=) 23.b6 (better is 23.ba6!? ba6 24.Qc2+/–) 23...Nd5= 24.Rab1 Bc6 (24...Rc8 25.Qc2=) 25.Qc2+= Ne7 (25...Be8+=) 26.Rfd1 (26.Rfc1 Nf5+/–) 26...Nf5 27.a4 Kg7 28.a5 Nh6 29.Rbc1+/– Qd7 30.Qc3 Ba4+= 31.Re1 Rc8 32.Bc4 Nf7 33.Ng5+/– Ng5 34.fg5 Rcd8 35.Re2+/– Bb5? 36.gf6 Kf7 37.Rf2 Bc4 38.Qc4 Rc8 39.Qf4 Qb5?? 40.Qd6 Rfe8 41.h3 Qc6 42.Qe5 Qd5 43.d4 Red8? 44.Qg3?? c4 45.Rfc2 Qa5?? 46.Rc4+– Rc4 47.Rc4 Qb6 48.Rc7 (48.Rc7 Kf8 49.Rg7 Qb1 50.Kh2 Qf5 51.Rg6 Qf6 52.Rf6 Ke7 53.Qg7 Kd6 54.Qg5 Rc8 55.Qe5 Ke7 56.Qe6 Kd8 57.Rf7 Rc2 58.Qd7#) 1–0. Dillimann,Hans Peter (1715) – Furlong,Kevin, Afro op Augsburg, 1998.

7.Be2 a5 8.b5 Bd6 =.

7.Be2 Bd6 8.Nf3 =.

7.Be2 Bd7 8.Nc3 Rc8 (8...a5 9.b5=) 9.Nf3 c5 10.bc5 Bc5 11.0–0 0–0 12.Ne5 Be8 (12...Bd6 13.Nd7 Qd7 14.Nb5=) 13.Rc1 (13.d4 Bd6+=) 13...Nbd7 (13...Qd6 14.f4=) 14.f4 Ne5 15.fe5 Nd5 16.Nd5 Qd5 17.d4 Bc6 18.Bf3 Qa2 19.Rf2 Bb6 (19...Be7 20.e4 Bb5 21.Ra1+=) 20.Bc6 (20.Qc2!?+/–) 20...Rc6= 21.Rc6 bc6 22.Qc1 Qd5 23.a4 (23.Rc2 Rc8+=) 23...Rc8 24.Ba3 c5 (24...Qa5!?=) 25.Rc2+= c4 26.Bc5 Rc5 (26...Bc5 27.Rc4 Qe4 28.Rc5 Rc5 29.dc5 Qe5 30.c6+=) 27.dc5+/– Bc5 (better is 27...Ba5+/–) 28.Kf1?? (better is 28.Rc4 Be3 29.Kh1+–) 28...Qd3=+ (The isolani on e3 becomes a target) 29.Ke1 Bb4 30.Kf2=+ c3 31.Qb1 a5 32.Rb2 Qd7 33.Rb4 ab4–+ 34.Qb4 Qd2 35.Kf3 h6 36.Qb8 Kh7–/+ 37.Qd6 Qc2 38.a5?? Qf5 39.Ke2=+ c2 40.Qa3?? Qh5 41.Kf2 Qd1 42.a6 c1Q (43.Qc1 Qc1–+) 0–1. Johnston,R – Smith,David, Grand Rapids, 1989.

7.Be2 Be7 8.Nf3 0–0 9.Qc2 Bd7 10.Nc3 a5 11.b5 c6 12.Ng5 (12.bc6 Bc6 13.0–0 Rc8=) 12...Rc8=+ 13.Qb1 h6 14.h4 (14.Nf3 cb5 15.Nb5 a4=) 14...Be8 (14...Re8 15.Nf3=+) 15.Rh3 (15.Nce4!? g6 16.Nf6 Bf6 17.Bf6 Qf6 18.Ne4=) 15...g6 (15...Bd7–/+) 16.f4 (better is 16.Nge4!? e5 17.h5=) 16...hg5–+ 17.hg5 Nh7 18.Ne4 (better is 18.Qe4–+) 18...f5 (18...cb5 19.Kf2 f6–/+) 19.Rh7?? (better is 19.gf6 Bf6 20.Nf6 Nf6 21.bc6 Rc6 22.Bd3=+) 19...Kh7–+ 20.Kf2 e5 21.Be5 Kg8 22.Qh1 Kf7 23.bc6 Rc6 24.Rb1? Ke6 25.Nf6 Rf6?? 26.gf6 Bf6 27.Bf6 Qf6 28.d4 Kd6 29.g4 Bd7 30.g5 Qe7 31.Qe1 Nd5 32.Bd3 b6 33.a4 Rc7 34.Qd2 Bc6 35.Rc1 Nb4 36.Bf1 Qh7 37.d5 Bd5 38.Rc7 Qh2 39.Ke1 Qd2 40.Kd2 Kc7 41.Kc3 0–1. Keller,Dieter – Sandor,Bela, Hoogovens–B Beverwijk, 1967.

5.c4 c5

6.b5 dc4 7.Bc4 b6 8.Nf3 Bb7 9.Nc3 Be7 10.h4 0–0 11.Qc2 Nd5 12.Ng5 Bg5 (12...g6=) 13.Nd5?? (better is 13.hg5 g6 14.Ne4+/–) 13...Bh6+= (worse is 13...Bd5 14.hg5 g6 15.Qc3+=; worse is 13...ed5 14.hg5 f5 15.gf6 Nf6 16.Ba2+=; 13...Bh4?! 14.Nf4 h6 15.Ne6 fe6 16.Be6 Kh8 17.Qg6+=) 14.Nf4 g6?? (better is 14...Bf4 15.ef4 a6+= (15...Bg2 16.Rg1+/–)) 15.h5 g5? (15...Qg5 16.Ne6! Qg2+–) 16.Ne6! Qe7 (16...fe6 17.Be6 Decoy) 17.Nf8 Rf8 (17...Qf8 18.Bd3 Qe7 19.Bh7 Kf8+–) 18.Qc3 Nf6 19.Qf6 Qf6 20.Bf6 Bg2 (20...Bg7 21.Bg7 Kg7 22.Rh2+–) 21.Rg1 Bf3 22.Bg5 Kg7 (22...Bg5 23.Rg5 Kh8+–) 23.Be7 (23.Be7 Bg5 24.Rg5 Kh6 25.Rg3+–) 1–0. combijack (1820) – mischo (1785), gameknot.com, 2011.

6.b5 Bd6 7.Nf3 0–0 (--> 4…c5 5.b5 Bd6 6.Nf3 0–0 7.c4 Nbd7).

6.bc5 Nc5 7.Nc3 Qb6 8.Rb1 Be7 =.

6.bc5 Nc5 7.Nc3 dc4 8.Bc4 Nd3 9.Bd3 Qd3 10.Qe2 Qe2 11.Nge2 Bd7 12.Nd4 a6 13.f4 Bc5 14.Nb3 Bb6 15.a4 0–0 16.0–0 Bc6 (16...Rfc8 17.a5 Bd8 18.Rfb1+=) 17.a5= Ba7 18.Ba3 Rfd8 19.Bc5? (better is 19.d4=) 19...Bc5–+ 20.Nc5 Rd2 21.Rf2 (21.e4 Rd4–+) 21...Rad8 (21...Rf2 22.Kf2 Rc8 23.Rb1–+) 22.Ra2 (22.Rd2 Rd2 23.Ra2 Ra2 24.Na2 Ne4 25.Ne4 Be4–+) 22...Rf2–+ 23.Rf2 Nd5 (23...Ng4 24.Re2–+) 24.Rd2 (24.Nd5 Bd5 25.g4 Rc8–/+) 24...Rc8 25.Nd5 Bd5 26.Nd7 (26.Rc2 f5–/+) 26...f6–+ 27.Rb2 Rc3 28.Nb6 Bc6 29.Kf2 Ra3 30.Nc4 Ra4 31.Nd6 Ra5 32.Nb7 Rb5 33.Rb5 Bb5 (33...ab5 34.Nc5 Kf7 35.e4–+) 34.e4 Kf7 (34...Bc6 35.Nd6–+) 35.Ke3 Ke7 (35...e5 36.fe5 fe5 37.h4–/+) 36.Kd4–/+ Kd7 (36...f5 37.ef5 ef5 38.Kc5–/+) 37.Nc5 Kd6 38.Nb7 Kc6 39.Nd8 Kd7 40.Nb7 Bf1 41.g3 Kc6 42.Nd8 Kd7 43.Nb7 Ke7 44.e5 Kf7 (44...Bg2 45.Nd6–/+) 45.Kc5 (45.Nd8 Ke7 46.Nb7 Bg2–/+) 45...Kg6 46.Kd6 Kf5 47.Na5 fe5 (47...Bh3 48.Nc6 Kg6 49.Ke7+=) 48.fe5= Bh3 49.Nb3 ˝–˝. Bustamante Cruz,Alejandro – Valenzuela Martinez,H, 8o. Torneo FIDE, 2010.

6.bc5 Nc5 7.d4 Qb6 (7...Nce4 8.Nc3+=) 8.Qc2= Qb3 9.Qb3 Nb3 10.Ra2 Na5 (10...Bd6 11.Nf3=) 11.Nd2= b6 12.Ngf3 Bd6 13.cd5 Nd5 (13...ed5 14.Bc3=) 14.e4+= Nf4 15.g3 Ng6 16.d5 f6 17.Bb5 (17.Nc4 Nc4 18.Bc4 Bb7=) 17...Bd7 18.Bd7 (18.Nd4 ed5 19.Nf5 Bf8 20.Bd7 Kd7 21.ed5 Rd8+=) 18...Kd7 19.de6 Ke6. Kamaletdinov,Farit (1950) – Kidlo,Nikolai, Astrakhan Region–ch op, 2007.

6.cd5 cb4 7.de6 fe6 8.Nf3 +=.

6.cd5 ed5 7.bc5 Bc5 8.Nf3 0–0 9.Be2 Qb6 10.Qc2 Bd6 11.0–0 Re8 12.Bd4 Bc5 13.Nc3 Bd4 14.Nd4 Nc5 15.a4 a6 16.a5 Qd6 17.Bf3 Nce4 18.Na4 Ng4 19.Bg4 Bg4 20.Nb6 Rab8 21.f3 Nd2 22.Qd2 Bh5 23.Rfe1 Bg6 24.Rac1 h6 25.g3 Bh5 26.Nf5 Qa3 27.g4 Bg6 28.Nd5 Bf5 29.gf5 Re5 30.Kf2 Kh8 31.e4 Rbe8 32.Qc3 Qd6 33.f6 gf6 34.Qc7 Qa3 35.Qf7 Qb2 36.Kf1 Qh2 37.Qf6 Kg8 38.Qg6 Kh8 39.Qg2 Qh4 40.Ne3 Rg5 41.Qf2 Qf4 42.Ke2 Rd8 43.Rh1 Ra5 44.Rc2 Qd6 45.Nd5 Qe6 46.Qd4 Kg8 47.Nf6 Kf7 0–1. orangutandu (1610) – hiepd1, 2013.

6.cd5 ed5 7.bc5 Bc5 8.Nf3 0–0 9.Be2 Re8 10.0–0 a6 0–1. Kovacevic,Boz (1820) – Antonic,D (1965), XXIII Belgrade Trophy, 2010.

6.cd5 ed5 7.Nf3 cb4 8.Be2 Bd6 9.0–0 0–0 10.Qc2 a5 11.Bd4 ba3 12.Na3 Bb4 13.Qb2 b6 14.Rfc1 Ba6 15.Ba6 Ra6 16.Nb5 Nc5 17.Bf6 Qf6 18.Qf6 gf6 19.Rc2 Ne6 20.Kf1 a4 21.Rb1 a3 22.Ra2 Be7 23.g3 Rd8 24.Nh4 d4 25.Nf5 Bc5 26.ed4 Bf8 27.f4 h5 28.Kf2 Ra5 29.Ne3 Nd4 30.Nd4 Rd4 31.Rb6 Ra8 32.Ke2 Bb4 33.Rf6 Rad8 34.Nf1 Re8 35.Ne3 Red8 36.Nf1 Re8 37.Ne3 Red8 38.Nf1 Re4 39.Ne3 Red4 40.Nf1 Re8 41.Ne3 Red8 ˝–˝. Buczinski,Henryk (2200) – Benedetto,Davide, DJ–CT18/pr37, 2011.

6.cd5 Nd5 7.bc5 Nc5 8.Qc2 (8.Nf3!?=) 8...Bd7+= 9.Nc3 Nc3 10.Bc3 Na4 (10...Rc8 11.Qb1+=) 11.Bd4= a6 (11...f6 12.f4=) 12.Nf3 Rc8 13.Qb1 (13.Qe4 b5=) 13...b5 (13...f6!? 14.Bd3 e5 15.Be5 fe5 16.Ne5 Be6–/+) 14.Bd3 h5 (14...Bc5 15.Bg7 Rg8 16.Be5 Rg2 17.Bg3+/–) 15.Ne5 (15.0–0 Nc5+=) 15...Bd6+= 16.f4 (16.0–0 Nc5 17.Bh7 Be5 18.Be5 Bc6+=) 16...Kf8 (16...Be5!? 17.fe5 Nc5=) 17.0–0+= White intends f5 (worse is 17.Nd7 Qd7 18.Bc2 h4=) 17...Be8 18.Be4 Qe7 (18...Nc5 19.Rc1+=) 19.f5 (better is 19.Qb3+/–) 19...Kg8? (better is 19...Qc7 20.Nd3 Bh2 21.Kh1 ef5 22.Bf5 Rd8=) 20.fe6+– f6 (20...Be5 21.Be5 Rh6+–) 21.Ng6 Bg6 22.Bg6 Rh6 (22...Rf8 23.Qf5 Rh6 24.Bf7 (24.Bh5?! Bh2 25.Kf2 Qd6+–) 24...Rf7 25.ef7 Kf7 26.Rac1+–) 23.Qf5 Rf8 24.h3 Ba3 25.Rf4 (better is 25.Bf7 Kh8 26.Bh5+–) 25...h4? (25...Bd6 26.Rh4 Rg6 27.Qg6+–) 26.Rg4 (better is 26.Bf7!? Kh8 27.Qe4 Nc5 28.Bc5 Bc5 29.Rh4 Rc8+–) 26...Bd6 27.Rc1 Qb7 28.Qe4 Qe4 29.Be4 g5 30.Rc6 Be7? 31.Rc7 Bd8 32.Rg5!! fg5 33.Rg7 Kh8 34.Rh7 Kg8 35.Rh6 1–0. Pandurevic,Miro (2270) – Bender,Ivan (2215), Zagreb CRO, City Ch, 2013.

5.d4 Nb6

6.c3 Bd6 7.Nf3 0–0 8.Nbd2 Bd7 9.Qc2 a5 10.b5 a4 11.Bd3 Qe8 12.c4 dc4 13.Nc4 Bb5 14.Nd6 cd6 15.0–0 Rc8 16.Qe2 Bd3 17.Qd3 Nc4 18.Bc3 Nd5 19.Bb4 Nb4 20.ab4 d5 21.Rfb1 b5 22.Rc1 Qe7 23.Rcb1 Rc7 24.Ne1 Rfc8 25.Nc2 Nd2! 26.Rb2 (26.Qd2 Rc2 Discovered attack) 26...Nb3 27.Rab1 Qd7 28.g3 (better is 28.Qd1–+) 28...Rc3 29.Qe2 Qc6 30.Ne1 Nc1 31.Qd1 a3 32.Rd2 a2 (better is 32...Qc4!? 33.h3–+) 33.Ra1 Nb3 34.Rda2 Na1 35.Ra1 Rc1 36.Rc1 Qc1 37.Qe2 Qc4 38.Qd2 Qc3 39.Qc3 Rc3 40.Kg2 Rb3 41.Nf3 Rb4 42.Ne5 Kf8 43.Kf3 Rb2 44.Nd3 Rd2 45.Nb4 Ke7 46.h4 Kd6 47.Kg2 Rb2 48.Nd3 Rd2 49.Nb4 Kc7 50.Kf1 Rd1 51.Ke2 Rc1 52.Kd3 Kb6 53.Kd2 Rc4 54.Nd3 b4 55.Ne5 Rc7 56.Nd3 Kb5 57.Nb2 b3 58.Kd1 Kb4 59.Nd3 Ka3 60.Nc5 Ka2 61.Nd3 b2 62.Nb4 Kb3 (62...Kb3 63.Nc6 b1Q 64.Kd2 Rc6 65.Ke2 Qh1 66.Kd2 Rc2 67.Kd3 Qe4) 0–1. Parron Luceno,David – Sanchez Ruesga,Hector (1895), Campeonato Absoluto de Gipuzkoa, 2011.

6.Nc3 a5 7.b5 Ne4 =.

6.Nd2 Na4 7.Qb1 +=.

6.Nd2 Na4 7.Rb1 =+.

6.Nd2 Bd7 7.c4 Be7 (7...Na4 8.Bc1+=) 8.Ngf3 0–0 (8...Na4 9.Qb3=) 9.c5= Na4 10.Bc1 (better is 10.Qb3+=) 10...b5 (better is 10...Qe8!?+=) 11.Qc2+= c6 12.Nb3 (12.Bd3 a5+=) 12...Ne4 (12...Ng4+=) 13.Bd2 (13.Bd3 f5+=) 13...Qc7 (13...f5 14.Bd3=) 14.Be2 (14.Bd3 Nd2 15.Qd2 Rab8=) 14...f5 (14...Be8 15.Bd3 Nd2 16.Nbd2= (16.Bh7? Kh8 17.Nbd2 f5–+)) 15.Ne5= Bf6 16.f4 Qd8 (16...Bh4 17.g3 Be7 18.0–0=) 17.Nf3 (17.0–0 Be8+=) 17...Kh8 (17...Bh4 18.g3 Be7=) 18.Rg1 (18.0–0 Be8=) 18...g5 (18...Be8 19.Na5–/+) 19.fg5 (19.g3 g4 20.Ne5 Kg7=) 19...Bg5+= 20.Ng5 Qg5 21.0–0–0 Rg8 (21...Qh6 22.h3+=) 22.Rdf1 (22.Bf3 Qh4=) 22...Rg7 (22...Rae8 23.Kb1=) 23.Qd3 (23.Bf3 Qh4=) 23...Rag8 24.Bd1 (24.g3 Qh6 25.Rh1 Re7=) 24...Be8 (24...Qh6 25.Bf3 Ng5+=) 25.Na5 (25.h3 Qh6 26.Bf3 Ng5+=) 25...Qh4 (25...Qh6!? 26.Bf3 Bh5 27.Be4 fe4–/+ (worse is 27...de4 28.Qb3+=)) 26.Bf3+= Qh2 27.Be1 Ng5 28.Rh1= Qc7 29.Bd1? Ne4–/+ 30.Bf3 Ng3 31.Bg3+= Rg3 32.Rh4 R8g7 33.Rfh1 Kg8 34.R1h2 Bg6 35.Rf4 Rg5 36.Rh6 Re7 37.Qd2 Kg7 38.Rh3 Kf6 39.Kc2 e5 40.de5+= Re5 41.Rd4 ˝–˝. Wilk,Adam (2055) – Sznajder,L (1800), Poland–chT2 U18, 1996.

6.Nf3 Bd6 =.

5.d4 Bd6

6.Nf3 0–0 7.c4 dc4 8.Bc4 c6 =.

6.Nf3 0–0 7.Nbd2 a5 8.b5 =+.

6.Nf3 0–0 7.Nbd2 b6 8.b5 (8.c4 c5=) 8...Bb7 9.Bd3 c5 10.bc6 Bc6 11.Ne5 (11.c4 Rc8=) 11...Bb7 (11...Ba4 12.e4=+) 12.0–0= Rc8 13.f4 Ne4 14.Rf3 (14.Ne4 de4 15.Be2 f6 16.Nd7 Qd7=) 14...f5 15.Rh3 Ndf6 16.Qe2 Qe7 17.Ndf3 Rf7 (17...Rc7 18.Rh4=+) 18.Ng5?? (better is 18.Nf7 Qf7 19.Ne5+/–) 18...Ng5–/+ 19.fg5 Be5 20.de5 Nd7 (better is 20...Ne4!?–/+) 21.Rh7= Qg5 22.Rh5 Qg6 23.Bd4 Nc5 24.Rh3 Nd3 25.Qd3 Rfc7=+ 26.Rc1 Qg4 27.c3 Rc4 28.Rf1 Qe4 29.Qd1= Ba6 30.Rf4+= Rd4 31.cd4 Qd3 32.Qd3 Bd3 33.Rfh4 Rc1 34.Kf2 Rf1 35.Kg3 Be4 36.Rh8+– Kf7 37.Ra8 Rg1 38.Ra7 Kg6? 39.Kf2 Rg2 40.Kf1 Rg4 41.Rg3 Rg3 42.hg3 Bd3 43.Ke1 b5 44.Re7 1–0. Rosen,Leon – Curt,Charles, Brooklyn CC–Rice CC, 1909.

6.Nf3 0–0 7.Ne5 c6 8.Bd3 Qc7 9.f4 Ne4 10.Nd2 f5 11.0–0 Ndf6 12.Ne4 Ne4 13.Rf3 (13.c4 Be7+=) 13...Bd7 14.Rh3 Be8 15.Nf3 Be7 16.Be4 fe4 17.Ne5 Bf6 18.Qg4 Qe7 19.Bc3 Be5 20.de5 Bg6 21.Qe2 Qd7 22.Kh1 b6 23.Rg1 c5 Black prepares d4 24.g4 d4 25.Rd1 d3 26.cd3 ed3 27.Qf3 (27.Qd2 Be4 28.Kg1 c4–/+) 27...c4 28.e4 White prepares the advance f5 28...Qb7 (28...Qa4!? 29.f5–+) 29.f5–/+ Be8 30.Qf4 Bc6 31.Re1 Rf7 32.Kg1 Qd7 33.Qg5+= Re8 34.Qh5 g6 35.fg6 Rg7 36.gh7 Kh8 37.Rf3 d2 38.Rd1+/– Be4 39.Rd2 Qe7 40.Rf6 Bh7 41.g5 Reg8 42.h4+– Qe8 43.Qg4 Bf5 44.Qc4 Rf8 45.Rd6 Qa8 46.Qd4 Rgg8 47.Rd7 Bh7 48.Rh7! Kh7 49.Qd3 Rg6 50.Qg6 Kh8 1–0. Dzieczkaniec,Piotr (2005) – Szczygiel,Michal (1750), Polanica Zdroj op–B, 2007.

6.Nf3 a5 7.c4 =+.

6.Nf3 Ne4 7.Nbd2 0–0 8.c4 Ndf6 (8...Nd2 9.Qd2 dc4 10.Bc4+=) 9.Bd3 Bd7 10.0–0 Nd2 11.Qd2 (11.Nd2 b5 12.c5 Be7+=) 11...dc4= 12.Bc4 Bc6 13.Qe2 Bd5 14.Bd3 Ne4 (14...Be4 15.Rfd1=) 15.Qc2 (15.Ne5 a5+=) 15...f5= 16.Rae1 Nd2?? (better is 16...a5=) 17.Nd2+– Bh2 18.Kh2 Qh4 19.Kg1 Bg2 20.Kg2 Qg4 21.Kh1 Qh3 22.Kg1 Rf6 23.Qc7 Rh6 (24.Qb8 Rb8 25.Bf5 Qh2#) 0–1. Autengruber,R – Schmid,G, Niederbayern, 2001.

6.Nf3 Ne4 7.Nbd2 a5 8.b5 =.

5.Nf3 Be7

6.Be2 0–0 7.0–0 b6 8.d3 c5 9.b5 Bb7 10.c4 Qc7 11.Nbd2 Rad8 12.Qc2 Bd6 13.h3 Rfe8 14.a4 a5 15.Rac1 Qb8 16.Rfd1 e5 17.cd5 Bd5 18.e4 Bb7 19.Nh2 Nf8 20.Nc4 Bc7 21.Ng4 Can e5 get defended? 21...Ng4 22.hg4 (better is 22.Bg4!? Ne6 23.Be6 Re6 24.Qe2=) 22...Ne6–/+ 23.g3 Nd4 24.Bd4 Rd4 (24...cd4?! 25.Na5 Bd6 26.Nb7 Qb7 27.Qb3=; 24...ed4?! 25.f4+=) 25.Ne3 Bd8 26.Nf5 Rd7 27.Rf1 Bg5 28.Rcd1 g6 29.Nh4 Bh4 30.gh4 Qd8 31.g5 h6! 32.Qc1 (32.gh6 Qh4 Pinning (32...Qh4 Deflection)) 32...hg5 33.Qg5 Qg5 34.hg5 Rd4 35.Ra1 Kg7 36.Rfc1 Red8 37.Rc3 Rb4 38.Rca3 Bc8 39.Kg2 Be6 40.Bd1 Rb2 41.Kf3 Rh8 42.Kg2 Rh4 43.Kg3 Rh3 44.Kg2 Rh8 45.Kg3 Rd2 46.Bf3 Rd8 47.Rd1 Rb2 48.Rda1 (better is 48.Rc1!?–/+) 48...Bb3–+ 49.Be2 (49.Bg2 Rd3 50.f3 f5 51.gf6 Kf6–+) 49...Ba4 (49...Re2?! 50.Rb3 Rd2 51.f3–+) 50.Ra4 Re2 51.Kf3 Rd2 0–1. Le Phi Long – Tran Quoc Dung, VIE–ch U17 Dong Thap, 1999.

6.Be2 0–0 7.0–0 b6 8.d3 c5 9.b5 Qc7 10.Nbd2 Bb7 11.c4 Rfd8 (11...a6 12.ba6 Ra6 13.h3+=) 12.cd5 Nd5 (12...ed5 13.Rc1+=) 13.Nc4 (13.Qb3 a6 14.a4 Bf6=) 13...Bf6 (13...a6 14.ba6 Ra6 15.a4+=) 14.d4 (14.Qb3 h6=) 14...Rac8 (14...a6 15.a4+=) 15.Rc1 Qb8 (15...a6 16.ba6 Ba6 17.g3=) 16.Rc2 (16.g3 cd4 17.ed4 Ne7+=) 16...cd4+= 17.Nd4 Nc5 18.Bf3? (better is 18.Qa1+=) 18...e5–+ 19.Nf5 Ne3! 20.Be5?? (20.Nce3 Rd1 Discovered attack; 20.fe3 Rd1 Discovered attack; 20.Nfe3 Rd1 Discovered attack) 20...Be5 21.Qd8 (21.Ne7 Kf8 22.Qe2 Bh2 (22...Ke7 23.Qe3 Ne6 24.Bb7 Bh2 25.Kh1–+) 23.Kh1 Nf1 24.Bb7 Bg1–+) 21...Rd8 22.Ne7 (22.fe3 Bh2 23.Kh1–+) 22...Kf8 23.Bb7 Bh2 24.Kh1 Nf1 (24...Nf1 25.Bf3 Ke7–+) 0–1. Sandin,Albin – Ekenstierna,Adrian, Swedish Championship U16, 2016.

5.f4 c5

6.bc5 Bc5 7.Nf3 0–0 8.Nc3 b6 9.d4 (9.Bd3 a6=) 9...Be7+= 10.Bd3 Bb7 11.Nd2 Rc8 12.Qf3 Re8 (12...a6 13.0–0+=) 13.g4 Nf8 (13...h6 14.0–0 Nh7 15.Kg2=) 14.g5+= N6d7 15.h4 b5 16.Nb5 Qa5 17.Ke2 Rc2 (better is 17...a6!? 18.Nb3 Qb6+=) 18.Bc2+/– Qb5 19.Bd3 Qb2 20.Rab1 Qa3 21.Rb7 Bb4 22.Rb1 a5 23.Rb3 (better is 23.Rc7!?+–) 23...Qc1+= 24.R3b4 ab4 25.Rb4 Rc8 26.Rb1 Qc3 27.f5 Ra8 28.fe6 fe6 29.Rf1 Qb4 30.Qf7 Kh8 31.h5 Ra7?? 32.Rd1 Qd6 33.Rf1 Qb4 34.Rd1 Qd6+/– 35.Qf4 e5+= 36.de5 Qe5 37.Qe5 Ne5 38.Rf1 Kg8 39.Rf5 Nfd7 40.g6 hg6 41.hg6 Rb7 42.Ba6 Ng6?? 43.Rd5 Nf6?? 44.Rf5 Ne7?? 45.Bc4 Kf8= 46.Ra5 Nc6 47.Rf5 Ke7 48.Bb5 ˝–˝. Robinson,Steph2 – Karlsson,MiJ (1925), Glasgow SCO, 2012.

6.bc5 Bc5 7.Nf3 0–0 8.Bd3 Bd6 9.g4 Re8 10.Nc3 Nc5 11.Bb5 Bd7 12.g5 Nfe4 13.Bd7 Nd7 14.Nb5 Bf8 15.h4 Qb6–/+ 16.a4 a6 17.Bd4 Bc5 18.Nc3? Bd4–+ 19.Nd4 Nc3 20.dc3 e5 21.fe5 Ne5 22.0–0 Qc7 23.Nf5 Qc3 24.Qd5–/+ Rad8 25.Qb7 Rd2 26.Qe4 Rc2 27.Rad1 Ra2 28.Rf2 Rf2 29.Kf2 Rf8 30.Kg3 Qc7 31.Rd6 f6?? 32.gf6+/– gf6 33.Ra6 Kh8 34.Kh3 Qc8 35.Ra5 Qe8? 36.Qb7?? Qg6= 37.Qe4 Qe8 38.Ra7 Qc8 39.h5 Nf7+= 40.Kh4 Qb8 41.Qg2?? Rg8–+ 42.Rb7 Qe5 43.Qc2 Qd5 44.Qb2 Qg2 (45.Qf6 Qg7 46.Ng7 Ra8 47.Ne6 Kg8 48.Qg7#; 44...Qh1 45.Qh2 Qh2#) 0–1. Abrahams,Gerald – Yates,Frederick, Canterbury, 1930.

6.bc5 Bc5 7.Nf3 0–0 8.Be2 a6 9.a4 b6 10.0–0 Bb7 11.Na3 Rc8 12.Kh1 Ng4 (12...Re8 13.Qe1+=) 13.Nd4 Ndf6?? (13...Nh6=) 14.Nf3 (better is 14.Bg4 Qd7 15.Be2+–) 14...Qc7 (14...Ne4 15.Qe1+=) 15.Bd3 (15.Nh4 Nh6 16.Bf6 gf6+=) 15...Qd6 (15...Ne4!? 16.Qe2 Rfd8+=) 16.Qe2 a5 (16...Qd7 17.Nd4=) 17.Nb5 (17.Ne5 Nh6 18.Nb5 Qe7+/–) 17...Qe7+= 18.Ne5 (18.Nfd4 Nh6+=) 18...Ne5= 19.Be5 (19.fe5 Ne4=) 19...Bc6 (19...Ne4 20.Kg1=) 20.c3 (20.Nd4 Ne4=) 20...Bb5 (20...Ne4 21.Rab1=) 21.Bb5 Nd7 (21...Ne4 22.d3 f6 23.de4 fe5 24.ed5 ed5 25.f5+=) 22.Bd4 Bd4 23.ed4 Nf6 24.Rab1 Qd6 25.Bd3 Rb8 26.Rb3 Rb7 27.g3 Rfb8 28.Rfb1 Qc6 29.Kg1 Qd6 (29...Qa4? 30.Bb5 Qa2 31.Qd1+–) 30.h3 Nd7 31.Qh5 h6 32.h4 Qe7 33.Rf1 Nf6 34.Qf3 Qd7 35.Rb5 Rc8 36.Rfb1 Rcb8 37.Kg2 Qd6 38.R1b3 Nd7 39.g4+= Qe7 40.g5+/– hg5 41.hg5 g6 42.Rb1 Kg7 43.Rh1 Rh8 44.Rbb1 Rbb8 45.Bb5 Qd6 46.Qe3 f6?? 47.Bd7+– Qd7 48.gf6 Kf7 49.Qe5 Qd8 50.Rh8 Qh8 51.Qc7 Kf6 52.Rb6 Rb6 53.Qe5 Kf7 54.Qh8 Rb2 55.Kf3 Rd2 56.Ke3 Ra2 57.Qh7 Kf6 58.Qd7 Rc2 59.Qc6 Rh2 60.Qb5 Rh3 61.Kd2 Rh2 62.Kc1 Rh1 63.Kb2 Rh2 64.Ka3 Rh1 65.Qa5 Ra1 66.Kb3 Rb1 67.Kc2 Ra1 68.Qd8 Kf7 69.a5 Ra2 70.Kb3 Ra1 71.Kb4 Rb1 72.Kc5 Rc1 73.Kd6 Re1 74.Qe7 Kg8 75.a6 Ra1 76.a7 g5 77.fg5 Ra3 78.Qe6 Kg7 79.Qe5 Kg8 80.a8Q! Ra8 81.Qd5 Kh7 82.Qa8 ˝–˝. Woloszyn,Piotr (1845) – Strzelczyk,Anna, Mistrzostwa Ursusa Ursus Poland, 2007.

5.h3 Be7

6.Nc3 0–0 7.Nf3 c5 8.b5 (8.bc5 Bc5 9.Be2 a6=) 8...Qc7 (8...e5 9.Ne2 e4 10.Ne5–/+) 9.a4 (9.Be2 e5=+) 9...c4 (9...e5 10.Nh4–/+) 10.Be2=+ Nc5 (10...e5 11.g4 h6 12.h4=+) 11.g4 (11.d3!?=) 11...Nfe4 12.d3 (12.Ne4 Ne4 13.0–0 Bb4–/+) 12...Nc3 (better is 12...Qa5!? 13.de4 Ne4–+) 13.Bc3=+ cd3 14.cd3 f6 15.Rc1 Qd8 (15...a6 16.Nd2 ab5 17.ab5=+) 16.h4 e5 17.Nd2? (17.g5 e4 18.de4 Ne4 19.gf6 Bf6=+) 17...Be6 (17...Bg4 18.Bg4 Nd3 19.Kf1 f5–/+) 18.Bb4? (18.d4 Nd7=+) 18...Rc8 19.d4–/+ Nd3! 20.Bd3 Bb4 21.Rb1 Qa5–+ 22.Rg1 ed4 23.e4 de4 24.Be4 Rfe8 25.f3 Bd5 26.Rg2? Be4 27.fe4 Re4 28.Kf1 Bd2 29.Rd2 Qc7 30.Rf2 Qc4 31.Kg1 d3 32.Rg2 Rce8 33.Qb3 Re1 34.Kh2 Qb3 35.Rb3 Rd8 36.Rd2 Re2 37.Re2 de2 38.Re3 Rd2 39.Kg1 Ra2 40.Re8 Kf7 41.Re3 0–1. Kubecki,Alfred – Buczinski,Henryk, Siemianowice Slaskie, 1966.

6.c4 c6 7.Nf3 0–0 8.Be2 Bd6 (8...a5 9.cd5 ed5 10.b5=) 9.Qb3 Qe7 10.0–0 e5 11.Nc3 e4 12.Nd4 Qe5 13.f4 ef3 14.Nf3 (14.Rf3? Ne4 15.Ne4 Qh2 16.Kf1 de4–+) 14...Qg3 15.Nd1?? (15.c5!? Nc5 16.bc5 Bh3 17.Rf2=) 15...dc4?? (15...Ne4 16.Rf2 Nd2–+ (16...Nf2?! 17.Nf2 Rd8 18.cd5 cd5 19.Qd5=)) 16.Bc4 Nb6 (better is 16...Ne5 17.Ne5 Bh3–+ (17...Be5?! 18.Be5 Qe5 19.d4=)) 17.Kh1?? (better is 17.Nf2 Nc4 18.Qc4=) 17...Bh3!–+ 18.gh3 (18.gh3 Qh3 Double attack) 18...Qh3 (better is 18...Ne4 19.Rf2 Nf2 20.Nf2 Qf3 21.Kg1–+) 19.Kg1 Qg3 20.Kh1 Qh3 (better is 20...Ne4 21.Rf2 Nf2 22.Nf2 Qf3 23.Kg1 Rad8–+) 21.Kg1= Qg3 ˝–˝. ekosachro (2390) – cristero (2355), net–chess.com, 2015.

4...e5

5.Be5 Nc6 6.Bb2 Bf5 7.Nf3 Bd6 8.c4 dc4 9.Bc4 0–0 10.0–0 Be6 11.Qb3 Qd7 (11...Bg4 12.Ng5 Bh5 13.f4+/–) 12.Be6 (12.Bf6!? gf6 13.d4 b5 14.Be6 fe6+–) 12...fe6+/– 13.d4 Kh8 14.Nbd2 Rf7 (14...a5 15.b5 Ne7 16.e4+/–) 15.Rad1 e5?? (better is 15...a6+/–) 16.de5+– Ne5 17.Be5 Be5 (17...Qe7+–) 18.Ne5 Qe7 (18...Qd5 19.Nf7 Kg8 20.Nd8+–) 19.Nf7 Qf7 20.Qf7 1–0. Fournier,Frederic – kanterol, Active, 2007.

5.Be5 Nbd7 6.Bf4 +=.

5.Be5 Bg4 6.Be2+/– Nc6 7.Bb2 Be2 8.Qe2 (worse is 8.Ke2 Bd6=) 8...Bd6 9.Nf3 0–0 10.0–0 Ne4 11.d3 Ng5 12.Nbd2 Re8 13.Ng5 (better is 13.b5 Nb8 14.c4+/–) 13...d4?? (better is 13...Qg5 14.c4 Qh4+/–) 14.Nf7! Qf6 (14...Kf7 15.Qh5 Double attack) 15.Nd6 Qd6 16.Nc4 (better is 16.Qg4 Re6 17.Ne4+–) 16...de3 (16...Qd7+–) 17.Nd6 Re6 18.Qg4 ef2 19.Rf2 Rd6 (19...Nd4 20.Qd4 Re5 21.Qe5 cd6 22.Qg7) 20.Qg7 1–0. phildo (1800) – tombo, net–chess.com, 2004.

4...Be7

5.b5 0–0 6.Nf3 c5 7.a4 Nbd7 8.c4 b6 9.Be2 Bb7 10.0–0 e5 11.Ne5+/– Ne5 12.Be5 dc4 13.Bc4 Bd5 14.Na3 Bc4 15.Nc4 Qd5 16.Qc2 Ne4 17.d3+– Nf6 18.e4 Qd7 19.Rad1 Ng4 20.d4 Ne5 21.Ne5 Qc7 22.Nc6 cd4 23.Rd4 Bc5 24.Rd5 Rfe8 25.Rfd1 Qf4+/– 26.Rd8 Kf8? 27.Re8+– Re8 28.Re1 f5 29.g3 Qc7 30.e5+– g6 31.Kg2 Qf7 32.f4 Qd5+/– 33.Kf1?? Qh1 34.Ke2–/+ Qg2 35.Kd1+= Qc2? 36.Kc2+– Kf7 37.Rd1 Ke6 38.Rd7?? Re7 39.Rd8 Bg1?? 40.Ne7 Ke7 41.Ra8 Bh2 42.Ra7 Ke6 43.Rh7 Bg3 44.Rh6 Bf4 45.Rg6 Kd5 46.Rb6 Be5 47.Rc6 f4 48.Rc8 f3 49.Rf8 Kc5 50.Rf5 (50.Rf5 Kd4 51.Rf3+–) 1–0. OutOfBounce – Moxie, Live Game Caissa's Web, 2005.

5.Bb5 c6 6.Ba4 b5 7.Bb3 a5 8.c3 Nbd7 9.Ne2 c5 10.bc5 Nc5 11.Bc2 0–0 12.0–0 Bb7 13.d4 Ncd7 14.Nd2 Bd6 15.a4 b4 16.Nb3 Qc7 17.cb4 Bb4 (17...ab4!? 18.Ng3 Nb6–/+) 18.Rc1= Qb6 19.Nc5? (19.Bc3 Rfc8=) 19...Nc5 (better is 19...Bc5 20.dc5 Qb2–/+) 20.dc5= Bc5 21.Bf6 gf6 22.Bd3 (22.Bh7!? Kh7 23.Qc2 Kh6 24.Qc5 Qc5 25.Rc5=) 22...f5+= 23.Bb5 Rfc8 24.Nf4 d4 25.Qh5 Qd8 26.Rfd1 Qf6 27.Qh3 de3 28.fe3 Qg5 29.Kf2?? (better is 29.Kh1 Bd6 30.Rb1 Bf4 31.ef4 Qf4 32.Bd7–+) 29...Qf4–+ 30.Ke2 Qe4 (30...Qg5 31.Rc4–+) 31.Rc4 Qe5 (31...Qg2?! 32.Qg2 Bg2 33.Rdc1–+) 32.Rh4 (32.Rdc1 Rc7–+) 32...Bb4 (better is 32...Rd8 33.Rd8 Rd8 34.Qg3 Qg3 35.hg3 Be4–+) 33.Rh7 (33.Kf1–+) 33...Rc2 34.Kf1 Bg2 (34...Bg2 35.Kg1 Bh3 36.Rh3 f4–+) 0–1. croach (2355) – latourladame (2490), net–chess.com, 2016.

5.c3 0–0 6.Nh3 (6.Nf3 c5=+) 6...a6 (6...e5 7.Qf3–/+) 7.g3 (7.c4 a5=+) 7...c5 (7...e5 8.Bg2–/+) 8.Bg2 b6 9.0–0 Bb7 10.bc5 Bc5 11.d4 Bd6 12.a4 Nc6 13.Re1 Ne7 14.e4 (14.c4 Rc8–/+) 14...de4 (14...Ne4 15.Be4 de4 16.Ng5–/+) 15.c4 (15.Nd2 Qc7–/+) 15...Ra7 (15...Bb4 16.Bc3 Bc3 17.Nc3–/+) 16.d5 (16.Ng5 Bb4 17.Bc3 Bc3 18.Nc3 Nf5–/+) 16...ed5 17.Bf6 gf6 18.cd5 Bd5 (better is 18...f5!?–+) 19.Nc3=+ Bb4 (better is 19...Be6 20.Ne4 Be5=+) 20.Qc1?? (20.Nd5 Be1 (< 20...Nd5 21.Re4 Rd7 22.Qg4 Kh8 23.Rb4 Nb4 24.Qb4+/–) 21.Ne7 Re7 22.Qg4 Kh8 23.Re1 Rfe8+=) 20...f5 (20...Rc7 21.Nd5 Nd5–+) 21.Nd5? Be1?? 22.Ne7 Re7 23.Qe1 Qd4= 24.Rd1 Qa4 25.Ng5 Re5 26.f4 ef3! 27.Qf1?? fg2–+ 28.Qd3 f6 29.Nf3 Re4 30.Re1 Re1 31.Ne1 Qe4 32.Qb3 Kg7 33.Ng2 b5 34.Qd1 a5 35.Qd7 Kg6 36.Nh4 Kg5 37.Qg7=+ Kh5 38.Qf8 f4 39.Qf7 Kh6 40.g4 f3?? 41.Qf6 Qg6 42.Nf5 1–0. crazy 8 – BCC, ChessWorld.net, 2005.

5.Nc3 0–0 6.Nce2 Nbd7 7.Ng3 (7.Nf3 Bd6+=) 7...c5 (7...Bd6 8.Nf3+=) 8.Nf3 (8.bc5!? Bc5 9.Nf3+=) 8...cb4–/+ 9.ab4 (9.Bb5 ba3 10.Ba3 e5–/+) 9...Bb4 10.Bd3 (10.Bb5 Qc7–/+) 10...Nc5 (10...Qc7 11.Bb5–/+) 11.Be2 Nce4 12.0–0 (12.Bd4 b6–/+) 12...Ng3 (12...a5 13.Bd4–/+) 13.fg3 Ne4 14.Ra4 (14.Bd4 b6–/+) 14...Qb6 (14...Bc5 15.Ba3–/+) 15.Bd4 Bc5 16.d3? (better is 16.c3–/+) 16...Bd4–+ 17.Rd4 Nc3 (17...Nd6!? 18.Rf2–+) 18.Qd2–/+ Ne2 (18...Qc7 19.Rb4–/+) 19.Qe2 f6 (19...a5 20.Ra1–/+) 20.Qd2 a5 21.Ra4 (21.Ra1 Qc5–/+) 21...Bd7–+ 22.Raa1 Qc5 (22...a4 23.g4–+) 23.d4 (23.c4 dc4 24.Rfc1 Qd6 25.Rc4 e5–+) 23...Qc7 24.Ne1 (24.g4 b6–+) 24...Rfc8–+ 25.Rc1 (better is 25.Rf2–+) 25...Qc3 26.Qf2 Bb5 27.Nd3 Bd3 28.cd3 Qd3 29.Rfd1 Qa3 30.Ra1 Qc3 31.h4 Qc2 32.Qf3 a4 33.Rdc1 Qc1 34.Rc1 Rc1 35.Kh2 a3 36.e4 a2 (36...a2 37.g4 a1Q–+) 0–1. Kubecki,A – Buczinski,Henryk, Siemianowice Slaskie Poland, 1967.

5.d3!? 0–0 6.c4!? dc4 7.dc4 Qd1 8.Kd1 Rd8 9.Kc2 Ne4 10.Nh3 e5 (10...Bf6!? 11.Bf6 Nf6 12.Nc3 b6 13.f3 Bb7 14.e4 Nbd7! 15.Bd3) 11.Bd3!. Dobrowolski.

5.Bd3 c5 6.bc5 Bc5 7.Nf3 Nc6 8.Bb5 0–0 9.d4 Bd6 10.Bc6 bc6 11.0–0 Qc7 12.a4 Ba6 13.Re1 Ne4 14.Nbd2 (14.Ba3 c5+=) 14...f6 (14...Rfb8 15.Rb1 Rb7 16.Ne4 de4 17.Nd2–/+) 15.Ba3? (better is 15.Ne4!? de4 16.Nd2+=) 15...Nc3–+ 16.Bd6 Qd6 17.Qc1 Ne2 18.Re2 Be2 19.Qe1 Bf3 20.Nf3 a5 21.c3 c5 22.dc5 Qc5 23.Qd2 Rfc8 24.Rc1 Rc6 25.Nd4 Rc7?? (better is 25...Rb6–+) 26.Ne6+– Qc6 27.Nc7 Qc7 (27...Rd8 28.Nb5 Re8+–) 28.Qd5 (28.Qd5 Kf8 29.Qa8 Kf7 30.Qd5 Kg6 31.c4+–) 1–0. Lucan,Zdenko (1800) – Jedlicka,Roman (1800), CZE–ch O189 email, 2004.

5.d4 c6 6.c4 dc4 7.Bc4 0–0 8.Nf3 b5 9.Bb3 a6 10.Qc2 Bb7 11.Nbd2 Nd5 12.0–0 Nd7 13.Ne4 N7f6 (better is 13...a5!?+=) 14.Nc5+/– Bc5 15.dc5 Qc7 (15...Ng4 16.h3 Ngf6 17.e4+–) 16.Rfd1 Rad8 17.Rd2 (17.Be5 Qc8+–) 17...a5 (17...Ne7 18.Rad1+–) 18.Rad1 (18.Be5 Qc8+–) 18...a4 (18...ab4 19.Bd5 cd5 20.Bf6 gf6 21.ab4+/–) 19.Ba2+– Bc8? (better is 19...Ne7+–) 20.Bb1 h6 (20...Rde8 21.e4 Nb4 22.ab4+–) 21.Be5 Qb7 (21...Qe7 22.e4 Ne4 23.Bd6 Rd6 24.cd6 Qd6 25.Qe4+–) 22.e4 (better is 22.Bf6 Nf6 23.Rd8+–) 22...Nb4 23.ab4 Rd2 24.Rd2 Nd7 (24...Ne8 25.Bd6 Nd6 26.cd6+–) 25.Bd6 Rd8 26.e5 Nf8 (26...f5 27.Ba2 Kh8 28.Be6+–) 27.Nh4 (better is 27.Bf8 Rd2 28.Qd2 Qd7+–) 27...g6 (27...f5 28.ef6 gf6 29.Ng6+–) 28.Rd3 Qd7 (28...Nh7 29.Nf3+–) 29.Rg3 (better is 29.Qd2!? g5 30.Bf8 Qd3 31.Bd3 Kf8+–) 29...Qe8 30.h3 Bd7 (30...Kg7 31.Nf3+–) 31.Kh2 (31.Qc1!? a3+–) 31...Ra8 32.f4 (32.Qd2 a3+–) 32...a3 33.Ba2 Kg7 34.Rd3 g5 35.fg5 hg5 36.Nf3 Qd8 (36...g4 37.Ng5 Ng6 38.Ne4+–) 37.Qd2 Nh7 (37...Ng6 38.Ng5 Qh8 39.Qf2+–) 38.g4 (better is 38.Bc7 Qc7 39.Rd7+–) 38...Be8 (38...Ra7+–) 39.Bf8! Nf8 40.Rd8 Ra7 41.Re8 Ng6 42.Ng5 Ne5 43.Qc2 Nf3 44.Kg3 Ng5 45.Bb1 Rd7 46.h4 Kf6 47.hg5 Kg5 48.Qc1 Kf6 49.Rg8 1–0. Slavisa2 – Putte6, Live Game Caissa's Web, 2004.

5.d4 Nc6 6.Nf3 Bd7 7.c4 0–0 8.Nc3 a5 9.b5 Na7 10.a4 b6 11.cd5 Nd5 12.Bd3 Nc3 13.Bc3 Bb4? (13...c6 14.Qb1=) 14.Qb3 (better is 14.Bb4!? ab4 15.Qb1+–) 14...Bc3+= 15.Qc3 Rc8 16.0–0 Qe7 17.Rfc1 Qf6 (17...c6!? 18.Qb2 cb5 19.ab5 Qb4 20.Qb4 Rc1 (20...ab4? 21.Rc8 Nc8 22.Ne5+–) 21.Rc1 ab4=) 18.Ne5+/– Be8 (18...Qe7 19.Be4+–) 19.Be4+– c6 (19...Qe7 20.Qc2+–) 20.Nc6 Bc6 21.Bc6 (21.bc6 Qh4 22.Qd3 Rc7+–) 21...Rfd8 22.Qb3 White intends d5 22...g6 23.Bb7 Rc1 24.Rc1 e5 25.d5 e4 26.Rc7?? (better is 26.Qc2 Qe7 27.Bc6+–) 26…Qa1 (26...Qa1 27.Qb1 Qb1 28.Rc1 Qc1) 0–1. Fournier,Frederic (1845) – colomera, Active, 2008.

5.Be2 a5 6.b5 c6 7.Nf3 cb5 8.Bb5 Bd7 9.Nc3 0–0 10.0–0 Qc7 11.Bd3 Rc8 12.Rc1 Na6 (12...Bd6 13.Nb5 Bb5 14.Bb5=) 13.Nb5 Qd8 14.Rb1 Nc5 15.Be2 Nce4 16.Ne5 Be8. Walker,John T (1940) – Daatselaar,Jan Bart van (2070), corr WSTT/3/06/Semifinal, 2008.

5.Be2 a6 6.Nf3 b6 7.0–0 h6 8.c4 Bb7 9.cd5 Bd5 10.Nc3 Bb7 11.Nd4 0–0 12.Rc1 Nc6 (12...Nbd7 13.Nc2=) 13.Bf3+= Nd5?? (better is 13...Nd4 14.Bb7 Ra7+=) 14.Nd5+– ed5 15.Nc6 (worse is 15.Rc6 a5 16.b5 Bc5+–) 15...Bd6 (15...Bc6 16.Rc6 Qd7 17.Qc2+–) 16.h3 (better is 16.Nd8 Rad8 17.Qb3+–) 16...Qe8 (16...Bc6 17.Rc6 Qd7 18.Qc2+– (worse is 18.Bd5 Be5 19.Qf3 Bb2+–)) 17.Bd5 Rb8 (17...Qd7 18.e4 Kh8 19.Qf3+–) 18.e4 (better is 18.Qg4 Be5 19.Be5 Qe5 20.Bf7 Rf7 21.Ne5 Re7+–) 18...Kh8 (18...Bc6 19.Qg4 Be5 20.Bc6+–) 19.Qg4 f6 20.Nb8 Qb8 21.Bb7 Qb7 22.d4 Qb8 (22...f5 23.Qg6 Qe4 24.d5+–) 23.f4 (23.e5 fe5 24.de5 Be7+–) 23...Qe8 (23...Qd8 24.f5+–) 24.e5 fe5 25.fe5 Be7 (25...Rf1 26.Kf1 h5 27.Qf3+–) 26.Rf8 Bf8 27.Rc7 (27.Rc7 Kg8 28.d5+–) 1–0. mikebaldini (1705) – kingcobra1 (1690), gameknot.com, 2014.

5.Be2 Nbd7 6.d3 e5 7.Nf3 Bd6 8.c4 c6 9.Nc3 a6 10.c5 Bc7 11.Na4 0–0 12.0–0 Re8 13.h3 h6 14.Nh2 Nf8 15.Ng4 Ng4 16.hg4 (16.Bg4!? Qg5 17.Bc8 Rac8 18.Nc3=) 16...Be6 17.g3 Rb8 18.Kg2 Nh7 19.Rh1 d4 20.e4 Qf6 21.Bc1 g5 22.Bd2 Kg7 23.Nb6 Rh8 24.a4 Nf8 25.Nc4 Bc4 26.dc4 Rd8 (26...a5 27.ba5 Ne6 28.Bb4+=) 27.Bd3 Nd7 (27...a5 28.b5=) 28.Qc1 (28.a5!?+=) 28...Qe6 29.f3 Bb8 (29...a5!?+=) 30.Qa3 Nf6 31.Rh2 Rh7 32.Rah1 Rdh8 33.Qc1 Bc7 34.b5 (34.a5 Rg8+=) 34...Bd8 35.Rh3 (35.Qa3 Be7=) 35...Be7= 36.bc6 (36.Qa3!?=) 36...bc6 37.Bb4 Nd7 38.f4 (better is 38.Qa3!?+=) 38...Qg4–+ 39.f5 Bc5 (39...Nc5?! 40.Bc5 Bc5 41.Qb1+=) 40.Be1 Nf6 41.Qc2 Rb8 (41...h5 42.Kh2–+) 42.Bd2 (42.Ba5 Ba3 43.Rb1 Rb1 44.Qb1 Nh5 45.Rh5 Qh5–+) 42...Ba3 43.Bc1 (43.Rb1 Rb1 44.Qb1 Bc5–+) 43...Bc1 44.Qc1 h5 45.Re1 (45.Kf2 Ne4 46.Be4 Qe4 47.Qg5 Kf8–+) 45...h4 46.c5 (46.Be2 Qe4 47.Bf3 Qf5 48.Bc6 Rb3–+) 46...Rbh8 (46...Nh5 47.f6 Kg6 48.Rf1 Ng3 49.Kh2–+) 47.Reh1 (47.Qd1 Qd1 48.Rd1 a5 49.gh4 g4–+) 47...hg3 (47...Ne4?! 48.Qe1 Nf6 49.Ba6 Qf5 50.gh4 Qc2 51.Kf1 Qa4 52.Be2–+) 48.Rh7 Rh7 (worse is 48...Nh7 49.Qd1 Qd1 50.Rd1–+) 49.Rh7 Kh7 50.Ba6 Qe4 (50...Qe4 51.Kg3 Qf5–+) 0–1. Dawidczyk,Roman – Jackiewicz,Jerzy, Otwarta Liga Mazowiecka Poland, 2009.

5.f4 a5 6.b5 =+.

5.f4 a6 6.Nf3 Nc6 7.Be2 0–0 8.0–0 Bd7 9.c4 Ne4 10.d3 Bf6 11.Bf6 Nf6 12.c5 Ne7 13.Nc3 Nf5 14.Qd2 Bc6 15.d4 Ng4 16.Nd1 Bb5 17.Bb5 ab5 18.h3 Nf6 19.Nc3 Ng3 20.Rfe1 Nge4 21.Ne4 Ne4 22.Qd3 c6 23.Ra2 Ra4 24.g4 Qc7 25.Kg2 Rfa8 26.Rea1 R8a6 27.Qb3 Qd8 28.g5 f6 29.h4 Qe8 30.Kh3 fg5 31.Ng5 Qg6 32.Rg2 Qf5 33.Kh2 Nf6 34.Nf3 Qh5 35.e4 Ne4 36.Rag1? (36.Raa2 b6–+) 36...g6 (36...Ra3 37.Rg7 Kf8 38.Rg8 Ke7 39.R1g7 Kf6–+) 37.Ra1 Nf6 38.Rg5 Qh6 39.Kh3 Ne4 40.Qe3 Ng5 41.Ng5 e5 42.fe5 Qf8 43.e6 Qf5 44.Kg3 Ra8 45.Nf7 Qe4 46.Qe4–/+ de4 47.Nd6 Ra3 48.Ra3 Ra3 49.Kf4 Kf8 50.Ke4 Ke7 51.Nb7 Rh3 52.Na5 Rh4 53.Ke5 Rh5 54.Ke4 Ke6 55.Nc6 Rh4 56.Kd3 g5 57.Na7 Kd5 58.Nb5 g4?? 59.Nc3= Kc6 60.b5 Kb7 61.c6 Kc7?? 62.Nd5+– Kc8? 63.b6 Rh6 64.Ne7 (64.Ne7 Kd8 65.c7 Ke7 66.c8Q Rb6 67.Qc7 Kf8 68.Qb6+–) 1–0. Sekhar,Ganesan – Charter,Bennet, Reserves Championship, 2000.

5.f4 b6 6.Nf3 Bb7 7.c4 (7.Be2 0–0=) 7...0–0 8.Nc3 c5 9.Qb3 (9.bc5 bc5 10.cd5 ed5+=) 9...Ne4 (9...dc4 10.Qc4 cb4 11.ab4+=) 10.Ne4 de4 11.Ne5 Nd7 12.Be2 Bh4 13.g3 Bf6 (13...Be7 14.Rd1+=) 14.Nd7 Bb2 15.Qb2 Qd7 16.0–0 Qe7 (16...Rfd8 17.Rfd1=) 17.f5 (17.bc5 Qc5 18.Qb4 Rac8+=) 17...ef5+= 18.Rf5 Rac8 19.Raf1 f6 20.bc5 Rc5 21.Qb4 Rfc8 22.Bg4 (22.Rc5 Rc5 23.Kg2 Qd6+=) 22...R8c7 (22...R5c7 23.R5f2 Rd8 24.Rb1–/+) 23.Rc5 Rc5 24.Rf5 Kf7 (24...Rc7 25.Rb5+=) 25.Rc5= bc5 26.Qa5 Bc6 27.Qa6 (27.Bh3 Be8=) 27...Qc7 28.Qc8 (28.Bf5 g6 29.Bh3 f5+=) 28...Qc8+= 29.Bc8 Ke7 30.Kf2 Kd8 (30...Kd6 31.d4 ed3 32.Bf5+=) 31.Be6 Kc7 32.Ke1 Ba4 33.Bf5= Bc2 34.d4 g6 35.Be6+= Kd6 36.Bd5 f5 37.Kd2 Bd3 38.h4 h6 39.a4 g5 40.hg5 hg5 41.a5 cd4= 42.ed4 f4 43.gf4 gf4 44.Ba8 Bb1 45.c5 Kc7 46.d5 e3 47.Ke2 Ba2 48.d6 Kd7 49.Be4 Bc4 50.Kf3 Bb5 51.Bd5 Bd3 52.Kg2 Bf5 53.Bf3 Ke6 54.Kf1 Bd3 55.Ke1 ˝–˝. Jeschke,Holger – Plewka,Manfred, Germany, 1996.

5.g3 0–0 6.Nf3 Nbd7 7.Bh3 c6 8.0–0 Qc7 9.d4 b6 10.Nbd2 c5 11.c3 cb4 12.cb4 Bb7 13.Rc1 Qd8 14.Qe2 Rc8 15.Rc3 Rc3 16.Bc3 h6 17.Ne5 Ne5 18.de5 Nd7 19.f4 Qc7 20.Rc1 Nb8 21.Bb2 Qd7 22.b5 Rc8 23.Qd1 Rc1 24.Bc1 Qb5 25.Bf1 Qa5 26.Qc2 Nc6 27.e4 de4 28.Ne4 Qd5 29.Nc3 Qd8 ˝–˝. willi_weizenkeim – M54, playchess.de, 2002.

5.g3 Bd7 6.Nf3 0–0 7.Bg2 (7.Nc3 a6 8.d4 Nc6 9.Bd3 Bd6 10.0–0 a5 11.b5 Ne7 12.a4) 7...h6 (7...a5 8.Nc3 ab4 9.ab4 Ra1 10.Qa1 Bb4 11.Qa7 b6 12.0–0) 8.0–0 (8.Nc3 Nc6 9.0–0 a6 10.Qe2 e5 11.e4 d4 12.Nd5) 8...a6 (8...c5 9.bc5 Bc5 10.Ne5 Bd6 11.Qe2 Nc6 12.Nd7) 9.d3 (9.Nc3 Nc6 10.Qe2 e5 11.e4 d4 12.Nd5) 9...Nc6 (9...a5 10.Qd2= (10.Nc3 ab4 11.ab4 Ra1 12.Qa1) 10...ab4 11.ab4 Ra1 12.Ba1; 9...c5 10.bc5 Bc5 11.Nbd2 Nc6 12.c4) 10.c4+= dc4 (10...Qb8 11.Nc3 Qa7 12.b5) 11.dc4 b5 (11...Qc8 12.Nbd2+= (12.Qc2+=)) 12.cb5 (12.Qc2+=) 12...ab5 13.Nd4 Qe8 (13...Nd5 14.Bd5 ed5 15.Nb5 Nb4 16.N5c3+=) 14.Nc3 (14.Nb5 Rb8 15.Nd4 Nd4 16.Bd4 Bb5+/–) 14...Rc8 (14...Nd4 15.Ba8 (15.ed4?! Bc6=; 15.Qd4?! Bc6=) 15...Qa8 16.Qd4+/–) 15.Ncb5 (15.Ndb5 Na5 16.Na7 Rb8+/–) 15...Nd4 16.Nd4 c5 17.bc5 Bc5 18.a4 Qe7 (18...Rd8 19.Qb3+/–) 19.Qe2 (19.Nb3 Bb4 20.Bf6 gf6 21.Qg4 Kh7+–) 19...Bd4 (19...e5 20.Nf3 Bd6 21.Rfd1+/–) 20.Bd4 Bc6 21.Bc6 Rc6 22.Qb5 Rfc8 23.a5 Ne4 24.a6 Nd6 25.Qb4 Qc7 (better is 25...e5!? 26.a7 Ra8+/–) 26.a7+– Ra8 27.Rfb1 Qd8 28.Be5 Kh7?? (28...Nc4 29.Bb8 Qd5+–) 29.Rd1 Rb6 30.Qd2 Qd7 31.Bd6 Ra7 32.Ra7 Qa7 33.Bc5 (33.Bc5 Qa6 34.Bb6 Qb6 35.Qc2 Kg8 36.h4+–) 1–0. Hadj Sassi,Nabil – Weiss,Karl, CES, Northeim GER, 2005.

5.g3 Nbd7 6.Nf3 =+.

5.g4 0–0=+ 6.h4 (6.f4 c5 7.g5 Nfd7=+) 6...a5 7.b5 d4 (7...Bd6!?=+) 8.g5= Ne8 (8...Nfd7 9.Bd4 e5 10.Bc3+=) 9.Bd3 (9.Bd4 e5 10.Bb2 Nd7+=) 9...f5 (9...e5 10.ed4 ed4 11.Qh5=) 10.Qh5 (10.ed4 c6+=) 10...g6 (10...Qd5 11.Qf3 c5=) 11.Qh6 (better is 11.Qf3 de3 12.de3+=) 11...Rf7–/+ 12.f4?? (better is 12.h5 Bg5 13.hg6 Bh6 14.gf7 Kf7 15.Rh6=+) 12…Bf8–+ (13.h5 Bh6 14.hg6 hg6 15.Rh6 Rh7 16.Rh7 Kh7 17.Bd4 c5–+) 0–1. Remillard,John – Gannon,Keith, Manitoba reserves op, 1997.

5.g4 Ne4 6.Bg7 Rg8 7.Bb2 Bf6 8.d4 Bh4 9.Nh3 e5 10.Rg1 h5 (better is 10...ed4 11.Bd4 h5=) 11.Be2 (better is 11.Nd2!? ed4 12.Ne4 de4 13.Qd4 (< 13.gh5 Rg1 14.Ng1 Qf6=+) 13...Qd4 14.Bd4 hg4 15.Nf4=) 11...hg4–/+ 12.Bg4? (better is 12.Nc3 Nf6 13.de5 gh3 14.Rg8 Ng8 15.Qd5–/+) 12...Bg4?? (better is 12...Nf2 13.Nf2 Bf2 14.Kf2 Qh4 15.Rg3 Qh2 (15...Bg4?! 16.Qg1–/+; 15...Rg4?! 16.Qg1–/+) 16.Rg2 Qh4 17.Kg1 Bg4–+) 13.Rg4+/– Rg4 14.Qg4 ed4 15.Bd4 Nc6 16.Nd2 Nd2 17.Kd2+– Nd4 18.ed4 Qf6 19.c3 Kf8 20.f4 Re8 21.Rg1 Ke7 22.Ng5 Bg5 23.Qg5 Qg5 24.fg5 Rh8 25.Re1 Kf8 26.Re2 Rh5 27.Rg2 Kg7 28.Ke3 Kg6 29.Kf4 Rh3 30.Kg4 Rc3= 31.h4 Rd3 32.h5+= Kh7 33.Kf5 Rd4 34.Re2+/– Rd3 35.g6 fg6 36.hg6 Kg8 37.Re8 Kg7 38.Re7 Kg8 39.Rc7 Ra3 40.Rb7 d4 41.b5 Rb3 42.Ke4 d3+/– 43.Ra7 Rb5 44.Kd3 Rg5 45.Ra6 Kg7 46.Ke4 Rg6 ˝–˝. bentengutama (1900) – tomy (2440), net–chess.com, 2003.

5.h3 a6 6.c4 0–0 7.Nf3 c5 (7...a5 8.b5=) 8.Qb3 (8.bc5 Bc5 9.d4 Be7+=) 8...b6 9.d4 Bb7 (9...Nc6 10.Nbd2+=) 10.Nbd2 (10.bc5!? dc4 11.Qb6 Qb6 12.cb6=) 10...dc4+= 11.Bc4 b5 12.Be2 c4 13.Qc2 Nd5 14.Ne4 Nd7 15.Nc5 Nc5 16.dc5 a5 17.0–0 a4 (better is 17...Bf6!?+=) 18.Nd4 Bf6? (18...Qe8 19.Rad1+=) 19.Rad1 (19.Nb5!? Bb2 20.Qb2+–) 19...Qc7 (19...Qe8 20.Rd2+=) 20.Bf3 Rad8?? (20...Bd4 21.Rd4 (worse is 21.ed4 Nf4 22.Bb7 Qb7+=) 21...f5 22.Rfd1+=) 21.e4 (21.Nb5 Qe7 22.Bf6 Nf6 23.Bb7 Qb7+–) 21...Ne7?? (better is 21...Bd4 22.ed5 Bb2+=) 22.Nb5+– Qb8 23.Bf6 Rfe8 (23...gf6 24.Nd6 Bc6+–) 24.Bb2 (24.Rd8 Qd8 25.Rd1 Qb8 26.Be7 Re7+–) 24...Ba6 (24...Be4 25.Be4 Qb5 26.Bh7 Kf8 27.Be4+–) 25.Nd6 Nc8 (25...Rf8 26.Be2 Nc8 27.Nc4+–) 26.Ne8 Re8 27.Qa4 Bb5 28.Qc2 f6 (28...Qa8 29.Be2 Ba4 30.Qc3+–) 29.a4 Ba6 30.b5 Bb5 31.ab5 Qb5 32.Ba3 Na7 33.Rb1 (better is 33.Be2 Qb3 34.Qc4 Qa3+–) 33...Qd7 34.Rfd1 Qc7 35.Qa4 Nc6 36.Rb6 Rc8 37.Rd6 (37.Qc4!? Ne5 38.Qe6 Kh8+–) 37...Ne5 38.Re6 c3 39.Re8 Re8 40.Qe8 1–0. ekosachro (2390) – mgoodrich (2445), net–chess.com, 2015.

5.Bb5 Bd7

6.Bd7 Nbd7 7.Nf3 Nb6 8.0–0 Nc4 9.Bc3 Nd6 10.Nd4 Nfe4 11.Qg4 Bf6 12.Bb2 (12.d3 Nc3 13.Nc3 Qd7+=) 12...0–0 (12...Nc4!? 13.d3 Nf2 14.Rf2 Nb2–/+) 13.d3 Bd4 14.Bd4 Nf6 15.Qg3 (15.Qg5 a5+=) 15...Nf5= 16.Qg5 Nd4 17.ed4 Re8 18.Nd2 Qd6 19.c4 (19.Qe5 a5=) 19...e5 (better is 19...dc4!? 20.dc4 Qd4–/+) 20.c5+= Qe6 21.Rfe1 Qg4? (better is 21...e4!?=) 22.Qg4+/– Ng4 23.h3 Nf6 24.de5 Nd7 25.d4 Re7 26.Nb3 b6 27.c6 Nf8 28.a4 f6 29.a5 Rae8 30.f4 Ne6 31.g3 a6? 32.ab6 cb6 33.Ra6 b5 34.Nc5 Nd4+/– 35.Nd7 Nf3= 36.Kf1 Ne1 37.Ke1 Rc8 38.Nf6?? gf6–+ 39.Ra5 fe5 40.Rb5 ef4 41.Kf2 fg3 42.Kg3 d4 43.Rg5 Rg7 44.Rg7 Kg7 45.b5 Kf6 46.h4 Ke6 47.Kf3 Kd6 48.Ke4 Kc5 49.h5 Kb5 50.Kd4 Rc6 51.Ke4 Rc5 52.Kf4 Rh5 53.Kg4 Rc5 54.Kf4 Kc4 55.Kg4 Kd4 56.Kf4 h6 57.Kg4 White threatens to counter with Rc3 57...Ke4 58.Kh4 Rg5 59.Kh3 Kf3 60.Kh4 Kf4 61.Kh3 Kf3 62.Kh4 Rg2 63.Kh5 Kf4 64.Kh6 Kf5 65.Kh5 Rh2# 0–1. Levraux,V – Cotting,Rene Yves, Champs sur Marne op, 2005.

6.Bd7 Nbd7 7.Nf3 c5 8.b5 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Nc3 0–0 13.0–0 Nb6 14.Ne5=+ Bd6 (15.f4 d4 16.ed4 cd4=). BCC – Whiterose, ChessWorld.net, 2005.

6.Qe2 0–0=+ 7.Nf3 a5 8.Bd7 Qd7 9.b5 =.

6.Qe2 0–0=+ 7.Nf3 Bb5 8.Qb5 b6 9.0–0= a6 10.Qe2 c5 11.c4 cb4–/+ 12.cd5 ba3 13.Ba3 Ba3 14.Ra3 Qd5 15.Nc3 Qd6 16.Nb5 Qc5 17.Nfd4 Nbd7 18.Rfa1 Rfc8–/+ 19.h3 Nd5 20.Ra6= Ra6 21.Ra6 Nb4 22.Ra7 Qe5?? 23.f4+– Qd5 24.Nc7 Qc5 25.Na6 Na6 26.Ra6 Qc1 27.Kf2 h6 28.Nb3= Qc6 29.Nd4 Qe4 30.Qb5 Qb7 31.Nb3 Rc2 32.Qd3 Qc7 33.Ra8+= Nf8 34.Nd4 Rc1 35.Nb5 Qc4?? 36.Qc4 Rc4+/– 37.Nd6 Rc2 38.Ke2 g5 39.Rb8 Rc6 40.Ne4 gf4 41.Nf6+/– Kg7 42.Nh5 Kg8 43.Nf4 f5?? 44.Ng6+– Kg7 45.Nf8 Rd6 46.d4 b5 47.Ne6 Re6 48.Rb5 Kg6 49.Kf3 Re4 50.Re5 Re5 51.de5 h5 52.Kf4 h4 53.e4 fe4 54.Ke4 Kf7 55.Kf5 Ke7 56.e6 Kf8 57.Kg5 Ke7 58.Kh4 Ke6 59.Kg5 Kf7 60.Kh6 Kg8 61.g4 Kh8 62.g5 Kg8 63.h4 Kh8 64.Kg6 Kg8 65.Kf6 Kh7 66.Kf7 Kh8 67.h5 Kh7 68.g6 Kh8 69.g7 (69...Kh7 70.g8Q Kh6 71.Qg6#) 1–0. mgriffin (1605) – vveksler, net–chess.com, 2000.

6.Be2 0–0 =.

6.Bf6 Bf6 7.Bd7 Nd7 8.c3 0–0 9.Nf3 a5 10.0–0 ab4–+ 11.d4 bc3 12.Nc3 c6 13.Ne2 c5 14.Ra2 b6 15.Ng3 Ra4?? 16.Qa4+– 1–0. sociale63 – kostovist (1650), internet, 2006.

5.c4 0–0

6.Qc2 Ne4 7.Nf3 Bf6 8.Nc3 Nc3 9.Bc3 Bc3 10.Qc3 c6 11.Be2 Nd7 12.d4 White prepares the advance c5 12...Nf6 13.Bd3 h6 14.Ne5 Qd6 15.c5 Qc7 16.Qc2 Qe7 17.a4 White plans b5 17...Nd7 18.Nd7 Bd7 19.b5 a6 20.ba6 ba6 21.0–0 Qg5 22.f4 Qe7 23.Rab1 Bc8 24.Rb6 Qc7 25.Rfb1 a5 26.Qf2 Qe7 27.Rc6 Qd7 28.Bb5 Qe7 29.Rb6 Bd7? (29...Qc7+–) 30.Rb7 Rfb8 31.Bd7 (31.Rd7?! Qd7 32.Rf1 Qe7=) 31...Qd8 (31...Rb7 32.Rb7 Rf8 33.Bc6+–) 32.Rb8 (better is 32.c6!? Rb7 33.Rb7 Qe7+–) 32...Rb8 33.Rb8 Qb8 34.Bb5 f5 35.Qh4 Qf8 36.Bd7 Qf7 (36...Kf7+–) 37.c6 1–0. combijack (1755) – jbnugas (1685), gameknot.com, 2010.

6.Nc3 a5 7.Qb3 =+.

6.Nc3 a6 7.cd5 Nd5 8.Bc4 Nc3 9.Bc3 c5 10.Rb1 b5 11.Be2 c4 12.Nf3 Bb7 13.0–0 Nd7 14.a4 h6 15.ab5 ab5 16.Ra1 Nf6=+ 17.d3 Qc7 18.dc4 bc4 19.Nd4 Bd5 20.Bf3 Bf3 21.Qf3 Rab8 22.Rfc1 Nd5= 23.b5 Bf6 24.Ba5 Bd4?? 25.Bc7+– (25...Ba1 26.Bb8+– (26.Ra1?! Nc7 27.Qf4 Rfc8+/–); 25.ed4 Qd7 26.Rc4 Rb5=+) 1–0. mgriffin (1630) – kostaspetidis (1900), net–chess.com, 2001.

6.Nc3 c5 7.bc5= Bc5 8.f4 (8.d4 Bd6=) 8...d4 (8...Nc6 9.d4 Be7 10.Nf3=+) 9.Na4= b6?? (better is 9...Be7=) 10.Qf3+– (10.Nc5 bc5 11.ed4 cd4+/–) 10...de3 (10...Bd7 11.Nc5 Bc6 12.Ne6 fe6+/–) 11.de3+/– Qd7?? (11...Bd7 12.Nc5 bc5 13.Qa8 Qa5 14.Ke2 Bc6 15.Qc6 Nc6 16.Bf6 gf6–+) 12.Nc5+– (12.Qa8 Be3 13.Rd1 Qa4 14.Qb8 Qc2=) 12...bc5 (12...Qc6 13.Bf6 bc5+–) 13.Bc3 (better is 13.Qa8 Rd8 14.Nf3+–) 13...Bb7= 14.Qg3 Rd8 15.Be2 Qe7 16.Nh3 Be4 (16...Nbd7 17.0–0=) 17.Ng5+= g6 (17...Bc6 18.0–0+=) 18.0–0 (18.Ne4?! Ne4 19.Qf3 f5=) 18...Nbd7 19.Qh4 (19.Ne4?! Ne4 20.Qe1 Nc3 21.Qc3 Rab8=) 19...Re8 (19...Qe8 20.Rad1 (20.Ne4?! Ne4 21.Ba5 Nb6=) 20...Bc2 21.Rd7 Nd7 22.Qh6+– (< 22.Qh7 Kf8+/–)) 20.Rad1 Bc6 21.Rd7 (21.Be5 Ba4 22.Bd6 Qd8+/–) 21...Bd7 22.Qh6 Rab8 23.Nh7!+– e5 24.Be5 Rb6 25.g4! Re6 26.g5 Re5 27.Nf6 Qf6 28.gf6 (28…Rg5 29.fg5 Re3 30.Qg7#; 28.fe5?! Qe5 29.Rf3 Qa1 30.Kf2 Qa3=) 1–0. Dillimann,Hans Peter – Heinzel,Mark, Augsburg op 2nd, 1995.

6.c5 a5 7.d4 ab4 8.ab4 Ra1 9.Ba1 c6 (9...Nc6 10.b5 Na5 11.Qa4+=) 10.Bd3 b6 11.Nf3 bc5 (11...Ba6 12.0–0=) 12.dc5 (12.bc5!? Ba6 13.0–0=) 12...Ba6+= 13.0–0 Bd3 (13...Qc8 14.Ba6 Na6 15.Qd4+=) 14.Qd3 Qc7 15.Be5 Qb7 16.Nbd2 Nbd7 (16...Qb4? 17.Rb1 Qc5 18.Bb8+/–) 17.Rb1 Ra8 18.Qc3 (18.Bd4 g6+=) 18...Ra4 Exerts pressure on the backward pawn (18...Ne5 19.Ne5 Nd7 20.Nd7 Qd7 21.Nf3+=) 19.h3 h6 (19...Ne5 20.Ne5 Ra6 21.Qb3=) 20.Bh2= Qa8 21.Nd4 Ra3 22.Qc1 Ra2 23.N2b3 (23.b5 cb5 24.c6 Ba3=) 23...e5+= 24.Nf5 Bf8 25.f4 e4 (25...ef4 26.Bf4 Ne4=) 26.Nfd4 (26.Ra1 Ra4+=) 26...Qa4= 27.Qc3 Be7 28.Nf5 Bf8 29.Nbd4 Ne8 30.Qb3 Nb8 (30...g6 31.Qa4 Ra4 32.Ng3=) 31.Qa4+= Ra4 32.Nc2 Ra7 (32...Ra2 33.Nfd4 f5 34.Rc1+=) 33.Nfd4 Rb7 (33...Nc7 34.f5+=) 34.Ra1+/– Be7? (better is 34...Nc7+/–) 35.f5+– Bd8 (35...Nc7 36.Bc7 Rc7+–) 36.Bb8 Rb8 37.Nc6 Rc8 38.Nd8 Rd8 39.Nd4 (better is 39.b5 g6+–) 39...Kf8 (39...Rc8 40.Kf2 Kf8 41.c6+–) 40.Ra7 (40.b5 Nf6+–) 40...Nf6 (40...Rc8+–) 41.c6 Ne8 (41...Rb8+–) 42.b5 Nd6 43.b6 Ne8 (43...Rb8 44.b7 Ke7 45.Ra8 Rb7 46.cb7 Nb7 47.Ra7+–) 44.b7 (44.b7 Nc7 45.Nb5+–) 1–0. Chen,Xingyu (1755) – Zhao,Kaiwen, Chinese Chess League Division B, 2016.

6.d4 dc4 7.Bc4 c6 8.Nd2 (8.Nf3 a5=) 8...Nbd7 (8...b5 9.Bd3=) 9.Ngf3 b5 (9...Nb6 10.Bd3=) 10.Bd3 a5 11.ba5 Qa5 (11...Ra5 12.Qb3=) 12.0–0 (12.Qc2 Nb8+=) 12...Bb7 13.Ne5 (13.Qc2 Qa4=) 13...Ne5 14.de5 Nd5 15.Ne4 c5 (15...Rfd8 16.Qg4 Ne3 17.fe3 Rd3 18.Nd6+/–) 16.Qh5 (16.Nf6 Bf6 (16...gf6?? 17.Qg4 Kh8 18.ef6+–) 17.ef6 g6+=) 16...h6 (better is 16...g6 17.Qf3 c4=+) 17.g4 (17.Nd6 Bc6 18.Rfd1 c4=) 17...Qd8 (better is 17...c4 18.Bc2 c3–+) 18.h4?? (better is 18.Nd6 c4 19.Nb7=+) 18...Nf4!! 19.ef4 Qd3 20.f3 Be4 21.fe4 Qg3 (21...Qe4?! 22.g5 c4 23.Qf3 Bc5 24.Kh1–+) 22.Kh1 Rfd8 (22...Qh4?! 23.Qh4 Bh4 24.Kg2–+) 23.Rf2 (23.Bd4 Rd4 24.Ra2–+) 0–1. Tapper,Larry (2250) – Roland,Jeffrey, World op Philadelphia, 2000.

6.d4 c6 7.c5 Nbd7 8.b5 cb5 9.Bb5 a6 10.Bd3 Qc7 11.Nd2 b6 12.cb6 Qb6 13.Bc3 Qc7 14.Ne2 Bd6 15.a4 Ng4 16.Ng3?? Qc3–+ (17.Bh7 Kh7–+) 0–1. clochard (2215) – lessmith (1800), net–chess.com, 2004.

6.d4 Nbd7 7.c5 =.

6.cd5 ed5 7.Nf3 a5 8.b5 c5 9.bc6 bc6 10.Nc3 c5 11.d3 (11.Bb5 Ba6 12.Qa4 Bb5 13.Nb5 Nbd7=) 11...d4 12.ed4 cd4 13.Ne4 Ne4 (13...Re8 14.Bd4 Bg4 15.Be3=) 14.de4 Increasing the pressure on the isolated pawn on d4 14...Nc6 (14...Bb7 15.Qd4 Qd4 16.Nd4 Be4 17.f3=) 15.Bb5 (15.Nd4 Qd6+/–) 15...Qb6 (15...Rb8 16.a4=) 16.a4 (better is 16.Bc6!? Qc6 17.Qd4=) 16...Bb4+= 17.Nd2 Ne5 18.0–0 Ba6 (18...Rd8 19.Nc4 Qe6 20.Ne5 Qe5 21.Qd3=) 19.Ba6 Ra6 20.Nb3 Qg6 21.Bd4 Nf3?? (better is 21...Qe4 22.f4 Nc6=) 22.Qf3+– f5 23.ef5 Rf5 24.Qg3 Rg5 25.Qf3 Rf5 26.Qb7 h5 27.Rac1 h4 28.h3 Rd6 29.Rc7 Rf7 30.Rf7 Qf7 31.Qf7 Kf7 32.Bc5 Rd3 33.Bb4 Rb3 34.Ba5 Ra3 35.Bd8 Ra4 36.Re1 Rd4 37.Bg5 Kg6 38.f4 Kf5 39.Re5 Kg6 40.Kf2 Kh5 41.Bf6 Kg6 42.Bg5 Rd2?? 43.Kf3+– Rd3 44.Re3 Rd1 45.Bh4 Kh5 46.Bf2 Rd7 47.Kg3 Rf7 48.Rf3 Rf5 49.Bd4 g6 50.Be5 g5 51.Bb8 Rb5 52.Be5 Rd5 53.Re3 Kg6 54.Kg4 gf4 55.Bf4 Kf7 56.g3 Rd7 57.h4 Kf6 58.h5 Rg7 59.Kh4 Kf5 60.Re5 Kf6 61.Rg5 Rh7 62.Kg4 Rh8 63.Rg6 Kf7 64.Ra6 Rg8 65.Bg5 Rc8 66.h6 Rc4 67.Kh5 Rc2 68.g4 Rh2 69.Bh4 Rc2 70.g5 Rc5 71.Rg6 Rd5 72.h7 Rd8 73.Kh6 Rd4 74.Rg7 Ke6 75.Kh5 Rd8 76.Rg8 Rd7 77.h8Q Kd6 78.Rd8 Ke6 79.Rd7 Kd7+– 80.g6 Ke6 81.g7 Kf5 82.g8Q Ke4 83.Qe8 Kf3 84.Qf6 Kg2 85.Qe2 Kh3 86.Qff3 (86.Qfe6) 1–0. Fournier,Frederic (1765) – Adeimi,Michel (1925), Active, 2007.

6.cd5 ed5 7.Nf3 Be6 8.Be2 c5 9.bc5 Bc5 10.0–0 Nbd7 11.d4 Bd6 12.Nbd2 Rc8 13.Qa4 a6 14.Rfc1 Nb6 15.Qb3 Rc1 16.Rc1 Bc7 17.Bc3 Qd7 18.Ba5 Qd6? (better is 18...Nc4 19.Bc7 Qc7+=) 19.Bb4+– Qd7 20.Bf8 Kf8 21.Qb4 Kg8 22.Qc5 Na8 23.Ne5 Qc8 24.Ndf3 h6 25.Qe7 Nd7 26.Nd7 Bd7? (better is 26...Qd7 27.Qd7 Bd7+–) 27.Ne5 Be6 28.f4 (better is 28.Bh5!? g6 29.Bg4 Qf8 30.Rc7 Nc7 31.Qc7 Bg4 32.Ng4 Qa3+–) 28...Nb6?? (28...Qb8 29.Bh5 Be5 30.de5 g6 31.Bg6 Qf8 32.Qb7 Qa3 33.Bf7 Bf7 34.Qa8 Kg7+–) 29.Rc7 (29.Rc7 Qf8 30.Qf8 Kf8 31.Rb7+–) 1–0. Fournier,Frederic – henrychinaski (1610), Active, 2006.

6.cd5 ed5 7.Nf3 Bg4 8.Be2 Nbd7 9.0–0 c6 10.d3 Qc7 11.Nbd2 Bd6 12.h3 Bh5 13.Rc1 Ne5 14.Ne5 Be2 15.Qe2 Be5 16.Be5 Qe5 17.d4 Qd6 18.Nf3 Rfe8 19.Ne5 Nd7 20.Nd7 Qd7 21.Qf3 Re4 22.Rc2 Rae8 23.g4 R8e6 24.Qg3 Qe7 (better is 24...Rg6!? 25.Qb8 Re8 26.Qa7 f5–/+) 25.Qb8+= Qf8 (25...Qe8 26.Qb7 Rh6 A) 27.Qa7?! Rh3 28.Re1 Qc8= (28...Rg4?! 29.Kf1=); B) 27.Kg2+=) 26.Qb7+/– h5 (26...Rh6 27.Rc6 Rh3 28.Qd7+–) 27.Rc6 (27.Qa7?! hg4 28.Qd7 gh3 29.Rc6 Rc6 30.Qc6 Qd8+/–) 27...hg4 28.Re6 fe6 29.Kg2?? (29.Rc1 Kh7 30.Rc8+/– (worse is 30.Qa7 gh3 31.f4 Re3–/+)) 29...Qf3–/+ 30.Kg1?? (better is 30.Kh2 Qh3 31.Kg1–/+) 30...gh3 31.Qb8 Kh7 32.Qh2 (32.Qg3 Rg4 33.Rd1 Rg3 34.fg3 Qg2) 32...Rg4 33.Qg3 Rg3 (33...Rg3 34.fg3 Qg2) 0–1. Fournier,Frederic – wiekes, Active (5/0), 2005.

6.cd5 Nd5 7.Nc3 a6 8.Nd5 ed5 9.Nf3 Nc6 10.d4 Bf6 (10...Bf5 11.Bd3 Be4 12.0–0=) 11.Be2 Re8 12.0–0 b5 (12...Bf5!?=) 13.Rc1 Bb7 14.Bd3 a5 (14...h6!?+=) 15.Bb5 Qd6 16.Bc6 (16.Qc2!? ab4 17.Bc6 Bc6 18.Qc6 ba3 19.Ba1+–) 16...Bc6 17.ba5 Ra5 18.Qd2 Ra4 19.Qc3 Rc4 20.Qd2 Ra8 (better is 20...Ra4!?=) 21.Rc4 dc4 22.Bc1 (better is 22.Qc2!?+/–) 22...Be4 23.Qe2 (23.Rd1!?=) 23...Bd3+= 24.Qd2 c5 (24...Bf1!? 25.Kf1 c5+=) 25.Re1 cd4 26.ed4 h6 (26...Bd4 27.Nd4 Qd4 28.Bb2=) 27.Qc3 Rd8 28.a4 (28.Be3 Rb8 29.Nd2 Qd5+=) 28...Qb6 Increasing the pressure on the isolated pawn on d4 29.Be3 (29.a5 Bd4 30.Nd4 Qd4 31.Qd4 Rd4+=) 29...Qb3 (29...Qb3 30.Qa5 c3+=). dsteel (2100) – mgoodrich (2190), net–chess.com, 2016.

6.cd5 Nd5 7.d4 Nd7 8.Bd3 c6 9.Nf3 h6 10.Qc2 a5 11.b5 cb5 12.Bb5 N7f6 13.0–0 Bd7 14.Bd7 Qd7 15.Ne5 Qd8 16.Nd2 Rc8 17.Qd3 Rc7 (17...Nd7 18.f4=) 18.Rac1 Qb8 19.Ndc4 b6 20.f3 (20.e4 Nf4 21.Qf3 Rfc8+/–) 20...Rfc8 21.Rfd1 (21.e4 Nf4 22.Qd2 Ne8=) 21...Ne8 22.Qe4 (22.e4 Bg5 23.ed5 Bc1 24.de6 f6+=) 22...f5 (22...a4 23.Qd3+=) 23.Qd3= Nd6 24.Nd6 Bd6 25.Rc7 Rc7 26.f4 b5 27.Rc1 Rc1 28.Bc1 Be5 29.fe5 Qb6 30.Kf2 Kf7 ˝–˝. Yannick – Bob19, playchess.de, 2005.

6.cd5 Nd5 7.Nf3 Bf6 8.Bf6 Qf6 9.Ra2 e5 10.Nc3 Nc3 11.dc3 e4 12.Nd4 Be6 13.Rd2 Nc6 14.Nc6 bc6 15.c4 Qc3 16.Qc2 Qa3 17.Qb2? (17.Qe4 Rad8 18.Bd3 g6–/+) 17...Qa6 (17...Qb2!? 18.Rb2 Rfb8 19.Kd2–+) 18.c5–/+ Bc4 (18...Qa4 19.Qd4–/+) 19.Be2? (19.Bc4 Qc4 20.Rd4+=) 19...Be2 20.Re2 Rad8 21.0–0 Rd3 22.Rd2 Qc4 23.Rc1 Qd5 24.Rcd1 Rd8 25.Rd3 ed3 26.Rd2 h6 27.f3 (27.Qc3!?+=) 27...Qe6 28.e4 Qc4 29.Kf2 (29.Kf1 Rb8 30.Qa3 Rb4 31.Qd3 Qc5–+) 29...f5! 30.ef5 Qd5 31.g4 Qd6?? 32.Kg2 Qf4 33.Qc3 Qe3= 34.Kg3 Qg1 35.Kh3 Qf1 36.Kg3 Qe1 37.Kh3 Qe3 38.Kg2 a6 39.Qc4 Kh8 40.Qc3 Qe1 41.f6+/– Qe3 42.fg7 Kg8 43.h4 Rd5? 44.h5?? a5?? 45.ba5 Rc5?? 46.Qd3 Qd3 47.Rd3 Kg7 48.Ra3 Rc2 49.Kg3 Rb2 50.a6 Rb8 51.a7 Ra8 52.Kf4 Kf6 53.Ke4 Ke6 54.f4 Kd6 55.Kd4 c5 56.Kc4 Kc6 57.Ra6 Kb7 58.Rh6 Ra7 59.Kc5 Ra5 60.Kd4 Ra4 61.Ke3 c5 62.Rd6 c4 63.Rd1 Ra3 64.Kd4 c3 65.Rc1 Ra4 66.Ke3 Rc4 67.g5 c2 68.h6 Kc6 69.h7 Kd5 70.h8Q Re4 71.Kf3 Rc4 72.Qg8 Kd4 73.Qg7 Kd3 74.Qg6 Kd2 75.Rc2! Rc2 76.Qc2! Kc2 77.g6 (77.g6 Kd2 78.f5 Kc3 79.f6 Kc4 80.f7 Kb3 81.f8Q Kb2 82.g7 Kc3 83.Qa3 Kc4 84.g8Q Kb5 85.Qd5 Kb6 86.Qaa5) 1–0. Fournier,Frederic (1655) – ctcll, Active, 2009.

6.cd5 Nd5 7.Nf3 Bf6 8.Bf6 Qf6 9.d4 e5 10.Ne5 Bf5 (10...Nd7 11.Qf3 Ne5 12.Qd5+/– (worse is 12.de5 Qe5 13.Ra2 Nc3 14.Nc3 Qc3 15.Rd2 Rd8–+)) 11.Bd3 (11.Qf3 Be6+–) 11...Nc6 (11...Bd3 12.Qd3 Rd8 13.Nc3+/–) 12.Nc6 (12.Bf5 Qf5 13.Nc6 bc6+–) 12...bc6 (12...Bd3 13.Qd3 Qc6 14.0–0+/–) 13.Qc2 (13.Bf5!? Qf5 14.Nd2+–) 13...Bd3+/– 14.Qd3 Rae8 (better is 14...a5!?+/–) 15.0–0+– Re7 16.Nd2 Rfe8 17.Nf3 Re4 (17...Ra8 18.Ne5+–) 18.Rac1 Qe6 (18...R4e6 19.Qa6+–) 19.Ne5 (better is 19.Ng5!? Qg6 20.Ne4 Re4+–) 19...Re5 20.de5 Qe5 21.Rc6 Nf6 22.Rc5 Qe6 (22...Qe7 23.Rfc1 Rc8 24.Qa6+–) 23.Qc2 (23.Rc7 a5+–) 23...Ng4 24.h3 Nh6 (24...Ne5 25.Rc7 a6 26.Rc1+–) 25.Rc1 g6 26.Rc7 Nf5 27.Rc8 Kg7 28.Re8 Qe8 29.Qc3 f6 (29...Kg8 30.Qc8 Kf8 31.Qe8 Ke8 32.Rc8 Kd7 33.Ra8+–) 30.Qc7 Kh6 31.Qa7 Qe4 (31...g5 32.Rc7 Qh8 33.b5+–) 32.Qc5 (better is 32.Rc7 Kg5 33.Rh7 Ne3 34.Qe3 Qe3 35.fe3+–) 32...Nh4 (32...Qa8 33.Rc3 Nh4 34.Qc6+–) 33.Qc6 (better is 33.Qf8 Kh5 34.g4 Qg4 35.hg4 Kg4 36.Qf6+–) 33...Qf5 (33...Qe7 34.Qc8 Nf5 35.Rc7+–) 34.b5 (34.Qd6 Nf3 35.gf3 Qf3 36.Qf8 Kh5 37.Rc5 g5 38.Qf7 Kh6+–) 34...Qg5 (34...Qe5 35.Qd7 f5 36.b6+–) 35.Kf1 (35.Rc5 f5 36.g3 Qd8 37.gh4 Qh4+–) 35...f5 (35...Qe5+–) 36.b6 f4 37.ef4 Qf4 38.g3 Qc1 39.Qc1 1–0. Fournier,Frederic – HavocFactory, Chess.com, 2013.

6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.c4).

6.f4 dc4 7.Bc4 a5 8.b5 =+.

6.f4 dc4 7.Bc4 b6 8.Nf3 Bb7 9.d3 Nc6 10.Nbd2 Ng4 11.Qe2 Nf6 12.0–0–0 a5 13.b5 Na7 14.f5 ef5=+ 15.Nd4 Qd7 16.Rhf1= c6 17.Nf5 cb5–/+ 18.Ne7 Qe7 19.Rf6 bc4 20.Nc4?? gf6+– 21.Qg4 Kh8 22.Qf5 1–0. jjjooojjjoojjoj (2375) – alexp (2310), net–chess.com, 2006.

6.f4 c5 7.bc5 Bc5 8.d4 =+.

6.h3 c6 7.Qf3 a5 =+.

6.h3 c6 7.Nf3 b6 8.d4 Ba6 9.Nbd2= Nbd7 10.Qb3 Ne4 11.Ne4 de4 12.Nd2 Nf6 13.f3 ef3= 14.gf3 Qc7 15.f4 Nh5 16.Rg1 Bh4 17.Kd1 Ng3 18.Nf3 Nf1= 19.Nh4 Bc4!–/+ 20.Qc3 f6?? 21.Kc2 Ba6 22.Raf1 Bf1 23.Rf1 Rac8 24.e4 Qe7 25.f5 c5 26.Kb1 cd4 27.Qd4= e5 28.Qg1 Rf7 29.Nf3 Qc7 30.Rf2 a5 31.h4? ab4–+ 32.h5?? h6 33.Bc1 ba3 34.Bh6 Qc4 35.Bc1 Qd3 36.Ka1 Rfc7 37.Bd2 Qb3?? 38.Bh6? g5 39.Ng5?? Rc1 (40.Qc1 Rc1; 39...fg5?! 40.Qg5 Kf7 41.Qg6 Ke7 42.Bg5 Kf8 43.Bh6 Ke7 44.Bg5 Kf8 45.Bh6 Ke7=) 0–1. blackmardiemerdarultakzim (2220) – ironhorse (2205), net–chess.com, 2005.

6.h3 c6 7.Nf3 dc4 8.Bc4 b5 9.Ba2 =+.

6.h3 Nbd7 7.Nf3 =+.

5.c4 a5

6.Qa4 Nbd7 7.c5 =+.

6.b5 c5 7.bc6 bc6 8.cd5 cd5 9.Nc3 0–0 10.Nf3 Ba6 11.Nb5 Nbd7 12.Be2 Ne4 13.0–0 Nd6 14.Nd6 Bd6 15.Ba6 Ra6 16.Qe2 Rb6 17.Bc3 Qa8 18.d4 Rc8 19.Rfc1 a4 20.Qe1 Rbc6 21.Bb4 Rc1 22.Rc1 Rc1 23.Qc1 Bb4 24.ab4 Nb6 25.Nd2 Nc4 Black prepares a3 26.Nc4 dc4 27.Qc4 a3 28.Qa2 Qa4 29.h4 Qb4 30.d5 ed5 31.Qd5 g6 32.h5 gh5 (32...Qb1 33.Kh2 Qb8 34.g3 Kg7–/+) 33.Qg5= Kf8 34.Qd8 Kg7 35.Qg5 Kf8 36.Qd8 Kg7 37.Qg5 Kf8 ˝–˝. Remizov,Juri (2155) – Vinogradov,Anatoly (2060), Novokuznetsk RUS, Siberia Ch (m), 2013.

6.c5 c6 7.Nf3 b6 8.d4 Ba6 9.Bd3 Bd3 10.Qd3 Ne4 11.Nbd2 f5 12.Ne5 0–0 13.0–0 Nd2 14.Qd2 Qc7 15.Rfc1 b5 16.f4 Bf6 (16...ab4 17.ab4 Ra1 18.Ra1=) 17.Bc3 (17.a4!?+/–) 17...ab4 18.ab4 Na6 19.Ra5 Be5 20.fe5 Qb7 21.Qf2 Nc7 22.Rca1 Ra5 23.Ra5 Ra8 24.Qa2 Kf7 25.Ra8 Qa8 26.Qa8 Na8 27.Bd2 g5 28.g3 Kg6 29.Kg2 g4 30.Kf2 Nc7 31.Kg2 Na6 32.Kf2 Nb8 33.Kg2 Nd7 34.Kf2 Nf8 35.Kg2 Kh5 36.Kf2 Ng6 37.Kg2 Nh8 38.Kf2 Nf7 39.Kg2 Ng5 40.Be1 Nf3 41.Bc3 Ng5 42.Be1 Kg6 43.Bc3 h5 44.Be1 Kh6 45.Bc3 h4 46.gh4 Nf3 47.Kg3 Kh5 48.Bb2 Nh4 49.Bc3 Nf3 50.Bb2 Nd2 51.Bc1 Ne4 52.Kg2 Kh4 53.Bb2 g3 54.hg3 Kg4 55.Bc1 Ng3 56.Bd2 (56.Kf2 Ne4 57.Kg2 Kh5+=) 56...Ne4 (better is 56...f4!? 57.ef4 Nf5–/+) 57.Bc1+= Ng5 58.Bb2 Nh3 59.Bc3 Ng5 60.Bd2 (60.Bb2 Nf3 61.Kf2 Nd2+=) 60...Nf7 (better is 60...Nf3!? 61.Bc3 f4–/+) 61.Bc1+= Nh8 62.Bd2 0–1. Brejding,Thomas – Wikstrom,Per, SWE–ch U18 Lindesberg, 1993. (=1.a3 d5 2.b4 e6 3.Bb2 Nf6 4.e3 Be7)

5.c4 b6

6.cd5 ed5 7.Nf3 0–0 8.Be2 Nbd7 9.0–0 Bb7 10.Qc2 h6 11.Ne5 Ne5 12.Be5 The backward pawn on c7 becomes a target 12...Bd6 13.Bf6 Qf6 14.Nc3 a6 15.Bf3 c6 16.d4 Rfe8 17.Na4 Qd8 18.g3 b5 19.Nc5 Bc5 20.bc5 a5 21.Rab1 a4 22.Rb2 Qf6 23.Bg4 Bc8 24.Bc8 Rac8 25.Kg2 Re4 26.Rb4 Rce8 27.Re1 Qg6 28.Qc3 h5 29.f3 R4e6 30.Rb2 h4 31.g4 Qg5 32.Rbe2 f5 33.h3 fg4 34.hg4 Rf8 35.Rh1?? (better is 35.e4 Qf4 36.Kh1–+) 35...Rfe8 (better is 35...Rf3! 36.Kg1 Rfe3 37.Qe3 Re3–+) 36.Rhe1–/+ Qf6 37.e4 Qf4 38.e5 Qg3 39.Kh1 Rf8 40.Rf1 Qf4 41.Qe3 g5 42.Rff2 Kg7 43.Qf4 Rf4 (43...gf4?! 44.Rh2 Rh6 45.Rb2=) 44.Rd2 Kf7 45.Kg2 Re7 46.Rd1 Rb7 47.Rb2 Ke6 48.Rb4 Rh7 49.Rb2 (49.Rd3 Rhf7–/+) 49...Rhf7 (better is 49...h3!? 50.Kg3 h2–+) 50.Rd3–/+ Rh7 ˝–˝. Cerny,Lumir (1730) – Hrdina,Stanislav (1660), Decin Treybal op, 2006.

6.Nf3 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.c4 b6).

6.Nf3 Bb7 7.Qc2 Nbd7 8.Be2 0–0 9.h4 Rc8 10.Nc3 c5 11.b5 d4 12.ed4 Bf3 13.Bf3 cd4 14.Ne4 Ne5 15.d3 Nd5 16.Bd4 Nb4 (16...Nf3 17.gf3 Nf4–/+ (worse is 17...Bh4 18.Qd2 Bf6 19.Nf6 Nf6 20.Be5=)) 17.ab4= (17.ab4 Qd4 18.Ke2+= (18.Ra7? Nd3 19.Ke2 Nf4 20.Kf1 Rc4–+)). combijack (1790) – ninja9000 (1840), gameknot.com, 2013.

6.Nf3 Bb7 7.Be2 0–0 8.Qc2 Nbd7 9.h4 c5 10.bc5 Nc5 11.Nc3 dc4 12.Bc4 Bf3 13.gf3 Qd7 14.Ke2 Nh5 15.Rag1 Bf6 16.Rg4 Rad8 17.d4 Nb7 18.Ne4 Nd6 19.Ng5 (19.Nf6? Nf6 20.Bd3 Ng4 21.fg4 Kh8–+) 19...g6 20.Ba2 Qb5 21.Ke1 Rc8 22.Qb1 Nc4 23.Bc4 Rc4 24.Ne4 Be7 25.Qa2?? (better is 25.Nd2 Qa5 26.Ke2–/+) 25...Rc2–+ 26.Nc3 Qd3 27.Rh2 Rc8 28.Rg6 (28.Qa1–+) 28...hg6 29.Rg2 R8c3 30.Rg6 fg6 31.Qe6 Kf8 0–1. combijack (1765) – masplund (1710), gameknot.com, 2012.

5.c4 dc4

6.Bc4 a6 7.Qc2 b5 8.Be2 Nbd7 9.Nf3 0–0 10.Ng5 h6 11.h4 Bb7 (worse is 11...hg5 12.hg5 Re8 13.Bf3+/–) 12.f3 e5 (12...hg5 13.hg5 Ne4 14.Bd3 Bg5 15.Be4 (worse is 15.fe4 c5+=) 15...Be4 16.Qe4+/– (16.fe4?! Bh4 17.Kf1 Bg3=)) 13.Nc3 Rc8 (worse is 13...hg5 14.hg5 Bd6 15.gf6 Nf6 16.Bd3+=) 14.g3 c5 (14...hg5?! 15.hg5 c5 16.gf6 Nf6 17.Qf5=) 15.bc5 Bc5 (15...hg5 16.hg5 Rc5 17.Qf5=; 15...Nc5?! 16.Nh3–+; 15...Rc5?! 16.Nge4 Ne4 17.fe4–/+) 16.Qb1 Re8 (16...hg5?! 17.hg5 Re8 18.gf6 Nf6 19.Qf5=) 17.Nge4 Ne4 18.Ne4 Bb6 (better is 18...Be7–/+) 19.Nd6+= Qc7 20.Nc8 Rc8 21.Qf5 Qc2 22.Qc2 Rc2 23.Bc3 Bd5 24.e4 Ra2?? (better is 24...Be6+/–) 25.ed5+– (25.ed5 Ra1 26.Ba1+–) 1–0. combijack (1730) – cadivi, gameknot.com, 2009.

6.Bc4 Bd6 7.Nf3 =.

6.Bc4 Bd7 7.Nc3 0–0 8.Qf3 Bc6 9.e4 =.

6.Bc4 Bd7 7.Nc3 c5 8.bc5 Bc5 9.d4 Be7 10.Nf3 0–0 11.Qc2 Bc6 12.Bd3 h6 13.Qe2 a6 14.a4 Nbd7 15.0–0 Qc7 16.Rac1+= Nb6 17.Rc2 Qb8 18.Ra1 Rd8 19.Ne5+/– Bd6 20.f4 Be5 21.fe5 Nfd5 22.Nd5 Nd5 23.Bc3 Nc3+= ˝–˝. Kuipers,Stefan – Vandewalle,Christophe, Hengelo op U12, 2001.

6.Bc4 Nbd7 7.Ne2 0–0 8.0–0 Nb6=+ 9.Bb3 c5 10.bc5 Bc5 11.Nbc3 Nbd5 12.Nd5 Nd5 13.d4 Be7 14.Rc1 Nb6 15.Nc3 Bd7 16.Qe2 a6 17.Ne4 Bc6 18.Nc5 Nd5 19.Rc2 Qb6 20.Bd5 Bd5? 21.Nd7+– Qd6 22.Nf8 Bf8 23.Qd3 Be7 24.Rfc1 g6 25.e4 Bc6 26.d5! ed5 27.ed5 Qd5 28.Qd5 Bd5 29.Rc8 Rc8 30.Rc8 Bf8 31.Be5 Be6 32.Bd6 Bc8–+ (33.Bf8 Kf8–+) 0–1. mgriffin – gregorgysi (1880), net–chess.com, 2001.

6.Bc4= Nbd7 7.Nf3 =.

6.Bc4 0–0

7.d3 a5 8.b5 =.

7.d3 Bd7 8.Nc3 a6 9.Qf3 =.

7.d3 Bd7 8.Nc3 Bc6 9.Nf3 Nbd7 (9...a6 10.0–0=) 10.e4 (10.b5 Bd5=) 10...a6 (10...Nb6 11.Bb3=) 11.Ne2 (11.Nd4 Ne5 12.Nc6 Nc6=) 11...Nb6=+ 12.Ne5 Nc4 13.Nc4 Bb5 14.Qc2 (14.Rc1 Rc8=+) 14...Bc4 (14...c5 15.bc5 Bc5 16.0–0=+) 15.Qc4 (15.dc4 c5=) 15...c6 (15...b5 16.Qd4=) 16.0–0 Qc7 17.Qc3 Ne8 18.Ng3 Bf6 19.e5 Be7 20.f4 g6 21.Ne4+= Rd8 22.Rf3 Qb6 23.Kh1 Nc7= 24.Qe1 Nd5 25.Nf6 Bf6 26.ef6 Kh8 27.Qh4 Kg8?? 28.Qh6+– (28...Nf6 29.Bf6 Qg1 30.Kg1 Rd3 31.Qg7#) 1–0. Faas,Dominik – Becker,Daniel, Saarland–chC, 1993.

7.d4 b6 8.Nf3 Bb7 9.0–0 Nbd7 10.Nc3 Ne4 (10...c5 11.dc5 bc5 12.b5=) 11.Rc1 (11.Ne4 Be4 12.d5 ed5 13.Bd5 Bd5 14.Qd5 Bf6 15.Bf6 Nf6+=) 11...Nc3 12.Bc3 Nf6 13.Ne5 Ne4 (13...a5 14.ba5 ba5 15.a4+=) 14.Bb2 Nd6 (14...Bd6!? 15.Bd3 Qh4+=) 15.Bd3+/– f6 (15...a5 16.Qc2+/–) 16.Nc6 Bc6 (16...Qe8 17.Ne7 Qe7 18.Qc2+/–) 17.Rc6+– Qd7 (17...a5 18.Qb3+–) 18.Qc2 Rfc8 (18...f5 19.Rc7 Qd8 20.Rc1+–) 19.Bh7 Kh8 (19...Kf8 20.Bd3 b5 21.Ra6+–) 20.Rc1 (20.Bg6 Kg8+–) 20...Ne8 (20...a5 21.Bg6+– (21.Rc7?! Rc7 22.Qc7 Qc7 23.Rc7 Kh7 24.Re7 ab4 25.ab4 Ra2+/–)) 21.Bg6 (21.Qg6 Qd5 22.e4 Qg5 23.Qg5 fg5+–) 21...Nd6 (21...Bd6 22.Qe2+–) 22.Rc7 (22.Qe2!? Nf5 23.d5 Nh6 24.de6 Qd5+–) 22...Rc7 23.Qc7 Qc7 24.Rc7 Rc8 (24...Bf8+–) 25.Re7 1–0. Wall,Bill – Khmer, Internet, 2004.

7.d4 c6 8.Nc3 b5 9.Bd3 a5 10.ba5 Ra5 =.

7.d4 c6 8.Nf3 Bd6 9.0–0 =.

7.d4 c6 8.Nf3 Nbd7 9.Nbd2 (9.Qc2 a5=) 9...Qc7 (9...Nb6 10.0–0=) 10.0–0+= Bd6 (10...Rd8 11.Rc1+=) 11.h3 Nb6 12.Bd3+= Ne8 13.Ng5 f5+= 14.e4 Bf4 15.Ngf3 Nf6 16.Qc2 g6 17.e5 Nfd5 18.Nb3 Na4 19.Bc1 Bc1 20.Rac1 Nac3 21.Nbd2 Qg7 22.Qb3+/– Nb5 23.Bb5 cb5+= 24.Ng5 Qe7 25.Ngf3 g5 26.Nh2 h5 27.g3 Qh7 28.Nhf3 Qg6 29.Kh2 Qh6 30.Nb1 b6 31.Nc3 Bb7 32.Nb5+/– g4 33.hg4 fg4+= 34.Nh4 Rf2 35.Rf2+/– Qc1 36.Qd3?? Ne7?? 37.Ng2+= Nf5 38.Nd6 Bc8?? 39.Rc2+– Ba6 40.Qf5!! ef5 41.Rc1 Rf8 42.Rc7 f4 43.Nf4 h4 44.b5 (44...Bb5 45.Nb5 hg3 46.Kg3+–) 1–0. Havinga,J – Pruijssers,Roeland, NED–ch U14 Nijmegen, 2001.

7.d4 Bd6 8.Nf3 =.

7.Nf3 c5 8.bc5 Bc5 9.d4 =.

7.Nf3 c6 8.0–0 b5 9.Bb3 Na6 10.Nc3 (10.d4 Nb8+=) 10...c5 (10...Nc7 11.Ne5 Bb7 12.d4=) 11.bc5 Nc5 12.d4 (12.Nb5 Nb3 13.Qb3 Bb7=) 12...Nb3 13.Qb3 a6 14.Rfd1 Bb7 15.Ne5 (15.d5 ed5 (15...Nd5? 16.e4+–) 16.e4 Bc5 17.ed5 Qd6=) 15...Ne4 (15...Bd6 16.Rdc1=+) 16.Ne4 Be4 17.Rac1 Qd5 (17...Bd6 18.f3 Bd5 19.Qc3=+) 18.Qd5= Bd5 19.f4 (19.Nd7 Rfe8=) 19...h6 (19...Rfc8 20.Nd7–/+) 20.Kf2 (20.Nd7 Rfe8=) 20...Rad8 (20...b4!? 21.ab4 Bb4=+) 21.Nc6= Bc6 22.Rc6+= a5 23.Rdc1 b4= 24.ab4 Bb4 25.g4 Kh7 26.h4 Ra8 27.Rb6 Rfb8 28.Rb8 Rb8 29.Kf3 Bd2 30.Rc2 Be1 31.h5 Rb7 32.Ke2 Bg3 33.Kd3 Rd7 34.Bc3 a4 35.Ra2 Ra7 36.Bd2 g6 37.e4 Kg7 38.f5 g5 39.fe6 fe6= 40.d5 ed5 41.ed5 Bd6 42.Ke4 Re7 43.Kd4 Ra7 44.Bc3 a3 45.Ke4 Kf8 46.Kf5 Kf7 47.Ke4?? Ra4–+ 48.Kf5?? Rf4 0–1. coloplayah (2000) – eckhart (1805), net–chess.com, 2005.

7.Nf3 Bd7 8.0–0 a6 9.d4 b5 (9...Bb5!? 10.Qb3 Nbd7=) 10.Bd3+/– Bc6 11.Nbd2 Nd5 12.Qc2 g6 13.Nb3 Bb7 14.Na5 Ra7 15.Bc1 Qd6 16.e4 Nb6 17.Bh6 Rc8 18.Rfc1 N8d7?? (better is 18...Ba8+–) 19.Nb7 Rb7 20.e5 Qd5 (20...Ne5 21.de5 Qd7+–) 21.Be4 Qc4 (21...c6 22.Bd5 Nd5 23.h4+–) 22.Bb7 Qc2 23.Rc2 Rb8 24.Ba6 Nc4 (24...Nd5 25.Ng5+–) 25.a4 Ndb6 (25...Ncb6 26.Bb5 Nf8 27.Bc6+–) 26.Bb5 Bb4 27.Bc4 c5 28.a5 Nd5 29.Bd5 ed5 30.dc5 f5 31.ef6 Kf7 32.Ne5 Ke6 33.Nc6 Rb5 34.Nd4 (34.Nd4 Kf6 35.Nb5+–) 1–0. Janek – Bonnie, internet, 2016.

7.f4 Nc6 8.Nf3 Ng4 9.0–0 a6 10.Nd4 Nd4 11.Qg4 Bf6 12.Nc3 e5 13.Qh5 g6 14.Qd1 ef4 15.Rf4 Nc6 16.d4 (better is 16.Qb3!? Ne5 17.Ne4+=) 16...Bg5+= 17.Qf3 Be6 18.Ne4?? (better is 18.Be6 Bf4 19.Bd5=) 18...Bc4–+ (18...Bf4 19.Qf4 Bf5 20.Rf1=) 19.Nf6 Bf6 20.Rf6 Qe7 21.e4 Rad8 22.d5 Ne5 23.Qf4 (23.Be5 Qe5 24.Rc1 Bd3–+) 23...Nd3 24.Qg5 Nb2 25.Rg6–/+ fg6 26.Qe7 Rde8 27.Qc7 Re4 28.d6 Rd4 29.Re1 b5 30.h3 Bf7 31.Re7 White plans d7 31...Rd1 32.Kh2 Nc4 33.d7 Na3 34.Qa5 Nc4= 35.Qa6 Nd2 36.Kg3 Nf1–+ 37.Kh4 Rd4 38.g4 h6?? 39.Rf7= Kf7 40.d8N?? Rfd8?? 41.Qf6 Kf6 ˝–˝. Allain,Michael A – Booth,Grahame, O–3138 IECC, 2010.

7.Nf3 a6

8.0–0 b5 9.Be2 Bb7 10.d3 Nbd7 11.Nc3 (11.d4 Bd6=) 11...c5+= 12.bc5 Bc5 (12...Nc5 13.d4 Nce4 14.Ne4 Be4 15.Nd2+=) 13.d4 Be7 (13...Bd6 14.Qb3=) 14.Qb3 Nb6 15.Ne5 Re8 (15...Ne4 16.Rfc1=) 16.Rac1 Qd6 (16...Bd6=) 17.Bf3 (17.Rc2!?=) 17...Bf3+= 18.Nf3 Nc4 Increasing the pressure on the isolated pawn on a3 19.a4 (19.Nb1 Rab8+=) 19...Ng4 (19...Qb4 20.Qb4 Bb4 21.Ba1–/+) 20.g3 (20.Rc2 Qb4 21.Qb4 Bb4+=) 20...Qc6 (20...Reb8 21.Ba1–/+) 21.e4 (21.ab5 ab5 22.Nb5 Rec8+=) 21...Nb2 (21...ba4 22.Qa4 Qa4 23.Na4+=) 22.ab5 (22.Qb2!? ba4 23.Qa1=) 22...ab5–/+ 23.Qb2 b4?? (better is 23...Ba3 24.Qb5 Qb5 25.Nb5 Bc1 26.Rc1 Ra2–/+) 24.Ne2?? (better is 24.Nd5! Qa6 25.Nc7+=) 24...Qe4–+ 25.Ne5 (25.Ne1 b3 26.Nc3 Qg6–+) 25...Ne5 26.de5 Qb7 27.Rb1 Rab8 28.Rfc1 Rec8–+ 29.Rc8 Qc8 30.Nc3 Qc4 31.Nd1 Ra8 32.Ne3 Qa6 33.Nc2 Rb8 34.Qd4 Qb6 35.Qb6 Rb6 36.Kf1 Rc6 37.Nb4? Rb6–+ 38.Ke2 Rb4 39.Rb4 Bb4 40.h3 Kf8 41.g4 g5 42.Kd3 Be1 43.f3 Bg3 44.Ke4 (44.Kd4 Ke7–+) 0–1. Lange,David – Tallaksen,Levi Andre (1760), NM Moss Norway, 2006.

8.0–0 b5 9.Be2 Bb7 10.d4 Bd6 11.Nbd2 Nc6 12.h3 Ne7 13.Rc1 Ng6 14.Qc2 Rc8 15.Bd3 Nd7 16.Be4 Ba8 17.Ba8 Ra8 18.Ne4 Rc8 19.Nd6 cd6 20.Qc8 Qc8 21.Rc8 Rc8 22.Rc1 Rc1 23.Bc1 d5 24.Nd2 Nb6 25.f3 Ne7 26.Kf2 Nf5 27.g4 Nd6 28.Nb3 Ndc4 29.Nc5 a5 30.ba5 Na5 31.Bd2 Nac4 32.Bb4 Nb2 33.Ke2 N6c4? 34.Na6+– g6 35.Nc7 h5 36.Nb5 Kg7 37.Bc3 Na4 38.Bb4 h4?? 39.f4 f6 40.Nc7 Kf7 41.Nb5 g5?? 42.fg5 fg5 43.Nd6 Nd6 44.Bd6 Nc3 45.Kd3 Nb5? 46.Bb4 Kf6 47.a4 Na7 48.a5 Nc6 49.Be1 e5 50.de5 Ke5 51.Bc3 Ke6 52.e4 de4 53.Ke4 Nb8 54.Be5 Nc6?! 55.Bc7 Nb4 56.Bd8 Na6 57.Bg5 Nc5 58.Ke3 1–0. Fournier,Frederic (1960) – bottone (1770), Active, 2011.

8.0–0 b5 9.Be2 c5 10.bc5 Bc5 11.a4 =.

8.Nc3 b5 9.Be2 c5 10.bc5 Bc5 11.0–0 Bb7 12.d3 Nc6 13.Nd2 Qc7 14.Bf3 (14.Nce4 Ne4 15.Ne4 Be7=) 14...Ne5 (14...Bd6!?+=) 15.Bb7= Qb7? (better is 15...Neg4 16.Re1 Qb7=) 16.d4+– Nd3 17.Qc2 (better is 17.dc5!? Nb2 18.Qb1+–) 17...Nb2+= 18.Qb2 (18.dc5!? Nc4 19.Nc4 bc4 20.Na4+/–) 18...Be7 19.Rac1 Rfc8 20.Ne2 Rc1 21.Rc1 Rc8 22.Nf3 Rc1 23.Nc1 Qc7 24.Nd3 Ne4 25.Kf1 (25.Nfe5 Qa5 26.Qc2 Qa3 27.Qc8 Bf8=) 25...Qc3 (25...Qc4!? 26.Nfe1 Qa4–/+) 26.Qc3= Nc3 27.Nc5 Bc5 28.dc5 Kf8 29.Nd4 Ke7 30.Ke1 Nd5 (30...Kd7 31.Nf3+=) 31.Kd2 e5 (31...Nf6 32.Nc6 Ke8 33.Kd3+=) 32.Nc6+= Ke6 33.e4 Nc7 34.g3 f6 35.f4 Kd7+= 36.Nb4 a5 37.Nd3 Ke6 38.f5 Kd7–/+ 39.Kc3 Kc6 40.g4 Na6 41.h4 Nc5 42.Nf2 Na6 43.g5 Kc5 44.gf6= gf6 45.Ng4 b4 46.ab4 ab4 47.Kb3 Nb8 48.Nf6+/– Nc6 49.Nh7+– Nd4 50.Kb2 Nf3 51.h5 Kc4?? 52.f6 Ne1 53.f7 Nd3 54.Kb1 b3 55.f8Q Nb4 56.Qd6 1–0. Hal1958 – Mercator, playchess.de, 2004.

8.d4 b5 9.Bd3 Bb7 10.Nbd2 Nbd7 11.0–0 Nd5 12.Qc2 N7f6 13.e4 Nf4 14.e5 Nd3 (better is 14...N6d5 15.Bh7 Kh8+/–) 15.Qd3?? (better is 15.ef6 Bf6 16.Qd3+–) 15...Nd5+= 16.Rac1 c6 (16...a5!? 17.ba5 Nf4–/+) 17.Ne4 a5 18.ba5 Qa5 19.Nc5 Bc5 (19...Ba6 20.Qb3=) 20.dc5 (20.Ng5 f5 21.ef6 Nf6 22.Rc5 h6 23.Ne6 Rf7+/–) 20...Rad8 (20...Qa4 21.Nd4=) 21.Qb3 (21.Ng5!? g6 22.Qh3+/–) 21...Ne7 22.Rfd1 Ng6 23.g3 (better is 23.Rd6!?+=) 23...Rd5= 24.Qb4 Qb4 25.ab4 Rfd8 26.Rd5 Rd5 27.Kf1 Kf8 28.Ke1 Ke7 29.Rd1 f6 30.ef6 gf6 31.h4 Ne5? 32.Ne5 fe5+/– 33.Rd5 cd5? 34.Be5+– Kd7 35.f4 Ke7 36.Kd2 Kf7 37.Ke3 Kg6 38.g4 Bc6 39.Bd6 Be8 40.Kd4 Kf6 41.Be5 Kg6 42.h5 Kh6 43.Bh8 Bd7 44.Ke5 White prepares f5 44...d4 45.Kd4 e5+– 46.Ke5 Bg4 47.f5 Bh5 48.Ke6 Kg5 49.f6 Be8 50.f7 Bf7 51.Kf7 h5 52.Bf6 Kg4 53.c6 h4 54.Bh4! (54.Bh4 Kf5 55.c7 Ke4 56.c8Q Kf4 57.Bf6 Ke3 58.Qc5 Ke4 59.Qb5 Ke3 60.Qc5 Kd3 61.Qd5 Ke2 62.b5 Ke3 63.b6 Ke2 64.b7 Kf2 65.b8Q Kf1 66.Qf4 Ke2 67.Qdd2) 1–0. Fournier,Frederic (1730) – litowai, Active, 2007.

7.Nf3 b6

8.0–0 a5 =.

8.0–0 c5 9.bc5 Bc5 10.d4 =.

8.Qc2 Bb7 9.Ng5 Bg2?? (better is 9...Nbd7=) 10.Rg1+– Bd5 11.Bf6 g6 12.Be7 Qe7 13.Bd5 ed5 14.Nc3 d4 15.Nd5 Qe5 16.Qe4 (16.Nc7?! de3 17.d4 Qh2+/–) 16...Qe4 17.Ne4 Nc6 18.Nc7 Rac8 19.Nd5 de3 20.Ne7 (better is 20.Nef6 Kg7 21.fe3+–) 20...Ne7= 21.fe3 Nf5 22.Ke2 Kg7 23.Raf1 Ne7 24.h4 Rc4 25.d3 Rc2 26.Kf3 f5 27.Ng5 Rfc8 28.e4 R8c3 29.ef5 Nf5 30.Rd1 Nh4 31.Ke4 Nf5 32.Ne6 Kf6 33.Nd4 Nd4 34.Kd4 Ra3 35.Rdf1 Kg7 36.Rf3 Rc7 37.Re1 Rd7 38.Kc4 h5 39.Re8 1–0. combijack (1800) – chess_knot (1820), gameknot.com, 2013.

8.Qc2 h6 9.0–0 Bb7 10.Be2 Nbd7 11.Nc3 a6 12.Rac1 Rc8 13.Qa4 b5= (Black gets strong initiative) 14.Qb3 c5=+ 15.bc5 Nc5–/+ 16.Qa2 Nd3 17.Bd3 Qd3 18.Ne5 Qf5 19.f4 Ne4 20.Ne4 Qe4–/+ 21.Nf3 Rfd8 22.Rc8 Rc8 23.Qa1 f6 24.Qd1 Qc2 25.Bc3? Qd1–+ 26.Rd1 Ba3 27.Nd4 Kf7 28.Ba5 Bd5 29.d3 f5 30.Bb6 b4 31.h3 b3 32.g4 b2 33.gf5 Rc1 (34.Rf1 Rf1 35.Kf1 b1Q 36.Kf2 Qb2 37.Ne2 Qb6 38.fe6 Be6–+) 0–1. Van der Linden,Arie – Stefkovic,Marijan, Kleve op, 1999.

8.Qc2 h6 9.d3 Bb7 =.

8.Nc3 Bb7 (9.d4 c5 10.dc5 bc5=). mgriffin (1810) – tomy (2020), net–chess.com, 2001.

8.d3 Bb7 9.Nbd2 Nbd7 10.e4 (10.Rc1 a6=) 10...c5 11.b5 h6 (11...a6 12.0–0=) 12.0–0 a6 13.Qb3 ab5 (13...Qc7 14.Rfc1=) 14.Bb5 Qc7 15.Rfe1 Bc6 16.Bc4 (16.Nc4!?=) 16...Ba4 (16...b5 17.Bb5 Bb5 18.Bf6–/+) 17.Qa2 b5 18.Bb3 Bb3 19.Qb3 Qb8 (19...Rfb8 20.Qc2=+) 20.Rab1 Rc8 21.Bc3 c4 22.Qb5 (22.dc4!? bc4 23.Qb8 Nb8 24.Rb7 Ba3 25.Ne5=) 22...Qb5=+ 23.Rb5 cd3 24.Bb4 Bb4 25.ab4 Ra2 26.Rb7 (26.Ra5 Rcc2 27.Ra2 Ra2=+) 26...e5= 27.Rd1 Rb2 (27...Rcc2 28.Nf1 Rf2 29.N1d2–+) 28.Rb5 Rcc2–/+ 29.Kf1 g5 30.h3=+ h5 31.Ke1 Ne4 32.Ne4 Re2 33.Kf1 Re4 34.Rd5 Ree2 35.Rd7? Rf2–+ 36.Kg1 Rg2 37.Kh1 e4 38.Ne1 Rge2 39.Rd5 f6 40.Rd7 Rb4 41.Ra1 Rb8 42.Ng2 d2 43.Kg1 Rc8 44.Kf1 Rc1 45.Ke2 45...Ra1 46.Ne3 Rh1–+ 47.Kd2 Rh3 48.Re7 Rh4 49.Kc3 Rf4–+ 50.Nd5 (50.Kd4 h4 51.Nd5 Rf1–+). Diener,Rudolf – Hoyer,B, corr ICCF WT–M–461, 1993.

8.Qe2 Bb7 9.0–0 a5 10.b5 Nbd7 11.d4 Ne4 12.Nbd2 Nd2 13.Nd2 Bd5 (13...Nf6 14.Nf3+=) 14.Rac1+/– f5 15.Bd5 ed5 16.Qf3 Nf6 17.Qf5 a4 (17...Bd6 18.Nf3+/–) 18.Nf3 Bd6 19.Qe6 (19.Ne5 Qe7+–) 19...Kh8+/– 20.Ne5 Qe8 21.Qe8 Rae8 22.Rc2 Re7 23.Bc3 Ra8 24.Nc6 Rf7 (24...Rd7 25.Ra1+/–) 25.Bb4+– Ne8 26.h4 h5 27.Ne5 Rf6 28.Rb1 Kg8 29.g3 Re6 30.Bd6 Rd6 31.Kg2 Kf8 32.Kf1 Ke7 33.Ke2 Re6 34.Nd3 Rf6 (34...Rd6 35.f3+–) 35.f3 g6 (35...Rf5 36.Nf4+–) 36.Nf4 Rd6 37.Kd3 Kf7 38.e4 1–0. Jaeger,Erich (2015) – Dorr,Joerg (2050), BdF OS–065 remoteschach.de, 2007.

8.Be2 Bb7 9.0–0 c5 10.b5 Nbd7 11.Qc2 Bd6 12.d3 Qc7 13.Nbd2 Be5 14.d4 cd4 15.Qc7 Bc7 16.Nd4 Be5 17.Bf3 Bf3 18.N2f3 (worse is 18.gf3 a6+=) 18...Bd4 19.Nd4 a5 20.a4 Rfe8 21.Rac1 Nc5 22.Rc4 Nd5 23.Ra1 Kf8 24.g3 (24.Nc6 Nb4 25.Be5 Nbd3+/–) 24...f5 25.Nc6 Ne7? (25...Kf7 26.Bd4 Nb3 27.Ra2+=) 26.Ne5 (26.Ba3!?+–) 26...Red8 27.Rd4 (27.Ba3 Nb3 28.Rc7 Na1 29.Be7 Kg8 30.Bd8 Rd8+–) 27...Rd4? (27...Nb3 28.Rd8 Rd8 29.Ra3+=) 28.Bd4 (28.ed4 Nb3 29.Ra3 Nd2+–) 28...Rc8 (28...Nb3!? 29.Nd7 Ke8 30.Nb6 Rb8+=) 29.Bc5+/– bc5 30.Nc4 Ke8 (better is 30...Ra8!?+/–) 31.Nd6+– (31.Nd6 Kd7 32.Rd1+–) 1–0. Oesch,Alfred (1755) – Tschirky,Werner (1665), SUI–ch Seniors, 1999.

8.0–0 Bb7

9.Qc2 Nbd7 10.Nc3 c5 (10...Bf3 11.gf3 c5 12.bc5+=) 11.bc5 Nc5 12.d4 Nce4 13.Ne4 Be4 14.Qb3 (14.Qe2 Rc8=) 14...Qd6 15.a4 Qb4 (15...Bf3 16.gf3 Rfc8 17.Rfc1=) 16.Qb4 Bb4 17.Ba6 Rad8 18.Rfc1 Nd5 19.Ng5 (19.Ne5 Bd2 20.Rd1 Bb4+=) 19...Bg6 20.Ba3 Rfe8 (20...e5 21.Nf3 ed4 22.Nd4=) 21.Bb4+= Nb4 22.Bb5 Re7 (22...Rf8 23.Rc7 a6 24.Be2+=) 23.Rc4+/– a5 24.Rac1 Rb7 25.f3 (25.h3 Kf8+/–) 25...h6 26.Nh3 Bd3 (better is 26...Rbb8!?+=) 27.Rb4!+– ab4 28.Bd3 Ra7 (better is 28...e5!? 29.Be4 Ra7 30.de5 Ra4+/–) 29.Bb5 e5 30.de5 Rd2 31.Rb1 (31.Nf2 Re7 32.Ne4 Rd8+–) 31...Rc7 32.Nf4 (better is 32.Bf1!?+–) 32...b3+/– 33.Rb3 (33.Bf1 Rc3 34.e4 b2+–) 33...Rc1 34.Bf1 Rdd1 35.h4 (35.Kf2 Rf1 36.Kg3 Rb1+=) 35...Rf1 36.Kh2 Rb1 37.Rb1 Rb1 38.Nd5 Kf8 39.Kg3 Ke8 40.Kf4 Kd7 41.Ke4 (41.e4 Kc6+=) 41...Kc6= 42.g4 (42.h5 Ra1 43.Nc3 Kc5=) 42...Ra1+= 43.Nc3 Kc5 44.g5 Rh1 45.gh6 (45.Kf5 Rh4 46.Ne4 Kd5 47.gh6 Rh5 48.Kg4 Rh6+=) 45...Rh4 46.Kf5 Rh5 47.Kf4 Rh6 48.Ne4 Kd5 (48...Kc6 49.Kf5+=) 49.Ng5 Rh4 50.Kf5 White intends e6 50...Ra4 51.e4 Kc5 52.Nf7 b5 53.e6 Ra7 54.Ne5 Kd6 55.Ng6 (better is 55.f4!?–/+) 55...b4–+ 56.e5 Kc6 57.Ke4?? (57.Nf4–+) 57...Ra3 (better is 57...b3 58.Ne7 Re7–+) 58.f4–/+ Rh3 (58...Kc7!? 59.f5 b3–/+) 59.Nf8= Ra3 60.f5 (60.Ng6 b3 61.Kd3 Kd5+=) 60...Ra8 61.e7?? (better is 61.Nd7=) 61...b3–+ 62.Kd3 Kd5?? (62...Rb8 63.Kc3 b2 64.e8Q Re8 65.Kb2 Rf8 66.f6–+) 63.f6?? (better is 63.Nd7 Re8 64.f6+=) 63...gf6–+ (63...Ke5 64.f7 b2 65.e8Q Kd6 66.Kd4 (66.Qa8 b1Q 67.Ke2 Qc2 68.Kf3 Qd1 69.Kf4 Qf1 70.Kg5 Qg1 71.Kh5 Qh2 72.Kg4 Qe2 73.Qf3 Qf3 74.Kf3 Ke7=) 66...Ra7 67.Nd7 Ra4 68.Ke3 Ra3 69.Ke2 Kd5 70.f8Q Re3 71.Qe3 Kc6 72.Qec5 Kd7 73.Qfe7) 64.ef6? (64.Nd7 Ke6 65.Nf6 Ke7 66.Nd5 Kd8 67.Kc3–+) 64...Rc8 65.f7 (65.e8Q Re8 66.Ng6–+) 65...b2 66.e8Q (66.e8R b1Q 67.Ke2 Rc2 68.Ke3 Qe1 69.Kf4 Qf1 70.Kg5 Rg2 71.Kh6 Qh1) 66...b1Q 67.Ke2 (67.Ke3 Qc1 68.Kf3 Rc3 69.Kg4 Qg1 70.Kh4 Qf2 71.Kh5 Rh3 72.Kg6 Rg3 73.Kh6 Qh2) 67...Rc2 68.Kf3 (68.Ke3 Qe1 69.Kf4 Rf2 70.Kg5 Qg1 71.Kh6 Rh2) 68...Qf1 69.Kg4 Rg2 70.Kh5 Qh1 0–1. Pongkiettisak,Sant (2025) – Yothinnorratham,Tepparit (1935), Thailand Olympiad Qualifiers, 2016.

9.Nc3 Nbd7 10.Rc1 c5 11.b5 (11.bc5 bc5 12.d3 Nb6=) 11...Ne4 (11...Bf3 12.gf3 Ne5 13.d3=+) 12.Ne4+= Be4 13.d3 Bb7 14.e4 (14.Qe2 a6+=) 14...Bf6= 15.e5 (15.Qe2 Bb2 16.Qb2 Qf6 17.Qf6 Nf6=) 15...Bg5 (better is 15...Bf3 16.Qf3 Ne5–/+) 16.Rc2= Bf4 17.Re1 Qb8 18.g3 (better is 18.d4!?=) 18...Bf3–/+ 19.Qf3 Be5 20.Bc1 Bd4 (20...a6 21.a4–/+) 21.Re4 (21.Bf4 Qd8–/+) 21...Ne5 22.Qh5 Nc4 23.dc4 g6 24.Qf3 (24.Qh6 Bg7 25.Qe3 Rd8–/+) 24...Bg7 25.Bf4 Qd8 26.Rd2 Qf6 27.Kg2 Rfd8 28.Rd3 Rd3 29.Qd3 Rd8 30.Qe3 Qc3 31.Qc3 Bc3 32.Kf3 Rd3 33.Ke2 Rd4 34.f3 Re4–/+ 35.fe4 e5 36.Bg5 f5 37.Kd3 Bd4 38.h3 Kf7 39.Bd8 Ke6 40.Bc7 Kd7 41.Bb8 Kc8 42.Bd6 Kb7 43.ef5 gf5 44.g4 e4 45.Ke2–/+ f4 46.Bf4+= a6 47.a4 ab5 48.ab5 Kc8 49.h4 Kb7 50.g5 Kc8 51.h5 Kb7? 52.g6+– hg6 53.hg6 Bg7 54.Ke3 Kc8 55.Ke4 Kd7 56.Kf5 Ke7 57.Be5 Bh6 58.Bc7 Kf8 59.Bb6 Be3 60.Bc7 (60...Bd4 61.b6 Be5 62.Be5 Ke7 63.b7 Kd7 64.g7 Ke7 65.g8Q Kd7 66.Qe6 Kd8 67.b8Q) 1–0. wlittle (1775) – tomy (2005), net–chess.com, 2001.

9.d3 a5 10.b5 =.

9.d3 c5 10.b5 (10.bc5 Bc5 11.Qe2 Nc6=) 10...Nbd7 (10...a6 11.Nc3=) 11.Nc3 Qc7 (11...a6 12.ba6 Ba6 13.Rb1=) 12.h3 (12.Qc2 Bf3 13.gf3 Ne5+=) 12...Rad8 (12...a6 13.ba6 Ba6 14.Nb5=) 13.Rc1 Qb8 (13...Bd6 14.Qe2=) 14.Qe2 e5 15.e4 (15.Rfd1 Qd6=) 15...Rfe8 (15...Qd6 16.Qe3=) 16.Ba1 (16.Ng5 Rf8+=) 16...h6 (16...Qd6 17.Qe3=) 17.Qa2 Rf8 18.g3 (18.Qc2 Qd6=) 18...Nh7 (18...Qd6 19.Qc2=) 19.Nd5 Bd5 20.Bd5 Nhf6 21.Bc4 Nh7 (21...Qc7 22.Qb2 Bd6 23.Qc3+=) 22.Qb2+= The pressure on e5 grows 22...Bf6 23.Kg2 (23.Bd5 Ng5 24.Ng5 Bg5+=) 23...Rfe8 (23...Qd6 24.Bd5=) 24.Qb3+= Rf8 25.Ne1 (25.Bd5 Ng5+=) 25...Bg5 (25...Ng5 26.Qa4=) 26.Rd1 (26.f4 ef4 27.Rf3 fg3 28.Rf7 Rf7 29.Bf7 Kh8+=) 26...Qc7 27.Nc2 Be7 (27...Qd6 28.Qa4+=) 28.Ne3 Nhf6 29.Nf5 Bd6 30.Nd6 Qd6 31.f4 Rde8 32.Rf2 Qe7 33.Rdf1 Qd6 34.Kh2 Qe7 35.fe5 Ne5 36.Rf5 Qd6+/– 37.Qc3 Qd4 38.Qb3?? Qd6+= 39.Be5 Re5= 40.Re5 Qe5 41.Rf5 Qe7 42.e5 Nh7 43.e6 fe6 44.Be6 Kh8 45.Re5 Qf6 46.Re2 Ng5+= 47.Qd5 Ne6 48.Re6 Qf2 49.Qg2 +=. Ostroverkhova,Elena – Afonso,Sara, EU–ch U12 Girls, 2002.

9.d4 c5 10.dc5 bc5 11.b5 Nbd7 12.Nbd2 (12.Qe2 Qb6+=) 12...Nb6 13.Be2 Qd5 14.a4 (14.Qc2 Rac8=) 14...a5 (14...Rfd8 15.a5 Nbd7 16.a6+=) 15.Qc2+= Qd8 (15...Rfd8 16.Rfd1 Qf5 17.Qf5 ef5 18.Be5+=) 16.Rfd1 Qc8 (16...Bd6 17.Rab1+/–) 17.Ne5 (17.Bd3 Nbd5 18.Ne4 Nb4 19.Nf6 Kh8+/–) 17...Nfd5 (17...Rd8 18.Ndc4 Nc4 19.Nc4+/–) 18.Ndc4 (18.Bd3 f5+/–) 18...Nb4 (18...f6 19.Nb6 Nb6 20.Nc4+/–) 19.Qb3 (19.Qc1 Qc7+=) 19...Bd5 20.f3 (20.Nb6 Bb3 21.Nc8 Rac8+=) 20...Qb7 (20...Rd8 21.e4 Bc4 22.Nc4 Nc4 23.Bc4+/–) 21.e4+/– Bc4 22.Bc4 Rfd8 23.Be6! Rd1 (23...fe6 24.Qe6) 24.Rd1 h6 (24...Rb8 25.Nf7 Kf8 26.Be5+–) 25.Bf7 Kh7 (25...Kh8 26.Qc3 Bf6 27.Bb3+– (27.Qc5?! Be5 28.Be5 Na4+–)) 26.Bg6 (26.Bg6 Kh8 27.Nf7 Kg8 28.Nh6 Kh8 29.Qg8 Rg8 30.Nf7#) 1–0. Kreuzer,Martin – Lippstein, Hockenheim GER, 1994.

9.d4 Bd5 10.Bd5 Qd5 +=.

9.d4 Nd5 10.Qc2 h6 (10...a5 11.b5+=) 11.e4+= Nf4 12.Nc3 Nc6 (12...a5!?+=) 13.d5+/– ed5 (13...Nb8 14.Rad1 Nd7 15.de6 Ne6 16.Ne5 Ne5 17.Rd8 Rfd8 18.Be6 fe6 19.Nb5+–) 14.Nd5+– (14.ed5?! Nb8+/–) 14...Ne6 15.Rad1 (15.Ne7?! Qe7 16.Rfd1 a6+/–) 15...Qe8 (15...Bd6 16.Qc3+–) 16.Qc3 (16.Ne7?! Qe7 17.Rfe1 a6+/–) 16...f6 (16...Ncd8 17.Nc7 Bf6 18.Qf6 gf6 19.Ne8 Re8+–) 17.Nc7 Qc8 (17...Qb8 18.Be6 Kh8 19.Na8 Qa8+–) 18.Be6 (18.Be6 Rf7 19.Bc8 Rc8 20.Nd5+–) 1–0. pcmvr – felippe (2485), net–chess.com, 2016.

9.d4 Nbd7 10.Qb3 Rb8 11.Nbd2 c5 12.Bd3 cd4 13.Bd4 Bd5 14.Qb1 h6 15.Rd1 a5 16.e4 Bb7 17.Qb2 ab4 18.ab4 Ra8 19.Bb5 Ra1 20.Ra1 e5 (20...Ne4!? 21.Ne4 Be4+=) 21.Ne5+/– Ne5 22.Be5 Ne4 23.Ne4 Be4 24.Bg7 1–0. Fournier,Frederic (2310) – edding300 (2110), Active (4/3), 2005.

9.d4 Nbd7 10.Nbd2 a5 11.b5 c5 12.a4 Rc8 13.Rc1 Nd5 14.Bd3 Nb4 15.Bb1 Nf6 16.dc5 Bc5 (worse is 16...bc5 17.Nc4+=) 17.Nb3 Be7 18.Nbd4 Nfd5 19.Ne5 Bf6 20.Ndc6 ˝–˝. Kuehnemund,Lutz (2080) – Ziems,M (1795), Berlin 10th Lichtenberger Sommer GER, 2011.

9.d4 Nbd7 10.Nbd2 Qc8 11.Rc1 Ne4 12.Ne4 Be4 13.Bd3 Bd3 14.Qd3 Nf6 15.Rc2 Qd8 16.Rfc1 Rc8 17.Qa6 Qd5 (17...Bd6 18.Qa7 Qd7 19.Qa6+/–) 18.Qa7 (18.Rc7!? Rc7 19.Rc7+–) 18...Bd6+/– 19.Qa6 Qh5 20.h3 Ne4 21.Qe2 Ng5 22.Ng5 Qg5 23.Qf3 h5 (23...Rfd8 24.Rc6+/–) 24.e4 e5 25.d5 f5 26.Qg3 (26.Re1+–) 26...Qh6? (better is 26...Qg3!? 27.fg3 fe4+/–) 27.Re2 (27.Be5 h4 28.Qh2 Ra8 29.Bd6 cd6+–) 27...f4 28.Qc3 (28.Qf3 Qg5+–) 28...Rf7 29.f3 Rcf8 30.a4 Qg5 31.Ba3 Rf6 32.b5 R8f7 33.Bd6 Rd6 34.Qe1 Rff6 35.Rc7 Kh7 36.Rc6 h4 37.Rd6 Rd6 38.Rc2 Kh6 39.Rc6 Qf6 40.Qc3 g5 41.Rd6 Qd6 42.Qc6 Qc6 43.dc6 (43.dc6 Kg6 44.c7+–) 1–0. Fournier,Frederic (1940) – daso (1650), Active (5/0), 2005.

7.Nf3 Nc6

8.0–0 a6 9.d4 b5 10.Bd3 Bb7 11.Nbd2 a5 12.ba5+/– (worse is 12.Bb5 ab4 13.ab4 Ra1 14.Qa1 Nb4=) 12...Na5 13.Bb5 Nd5 14.Bd3 Nc6 15.Qc2 Nf6 16.Rfc1 Bd6 17.Ne4 h6 18.Nf6 Qf6 19.d5! ed5?? (better is 19...Ne5 20.Be5 Be5+–) 20.Bf6 gf6 21.Nd4 (21.Qb2 Ba6 22.Ba6 Ra6+–) 21...Ne5 (21...Nd4 22.Qb2 Nb5 23.Qb5+–) 22.Nb5 Ng4 (22...Nd3 23.Qd3 Be5 24.Nc7+–) 23.Nd6 cd6 24.Qc7 Ba6 (24...Bc8 25.Qd6 Be6 26.Qg3+–) 25.Ba6 Ra6 26.Rc6 Ra4 27.Qd6 Re4 (27...Ne5 28.Rc3+–) 28.f3 (better is 28.Qd5 Rfe8 29.h3 R4e5+–) 28...Re6 29.Qd5 Ne3 30.Qb5 Re5 31.Rc5 Rfe8 32.Kf2 Rg5 (32...Kg7+–) 33.Rg5 fg5 34.Re1 Ng4 35.fg4 Re1 36.Ke1 (36.Ke1 Kh7 37.a4 h5 38.Qf5 Kh8 39.gh5 Kg7 40.Qg5 Kf8 41.h6 Ke8 42.Qd5 f5 43.h7 Ke7 44.h8Q f4 45.Qhd8) 1–0. Fournier,Frederic – chakmol, Active, 2007.

8.0–0 a6 9.d4 b5 10.Bd3 Bb7 11.Nbd2 Rb8 12.Qc2 Na7 13.Ne4 Rc8 (better is 13...Be4!? 14.Be4 Ne4 15.Qe4 Qd5+=) 14.Nf6+– Bf6 15.Be4 (15.Bh7 Kh8 16.Be4 Be4 17.Qe4 Qd5+–) 15...Bd5? (15...Be4 16.Qe4 Qd5 17.Qc2+=) 16.Rac1 (16.Bh7 Kh8 17.Be4 Qd6+–) 16...c6? (16...Be4 17.Qe4 Qd5+=) 17.Bd5?? (better is 17.Bh7 Kh8 18.Be4+–) 17...cd5= 18.Qd2 Qb6 19.Rc2 Rc6 20.Rc6 Nc6 21.Rc1 Rc8 22.Ne5 Be5 23.de5 h6 24.Bd4 Qd8 25.Rc5 Ne7 26.Qc3 Rc5 27.Qc5 Nf5 28.g3 h5 29.Qb6 Qg5 30.Qa6+/– h4 31.Qb5+– hg3 32.hg3 Ng3? 33.fg3 Qg3 34.Kf1 Qf3 35.Ke1 Qh1 36.Qf1 Qh4 37.Kd2 Qh2 38.Qe2 Qh1 39.a4 Qa1 40.Ba1 (40.Ba1 d4 41.b5+–) 1–0. Fournier,Frederic (1925) – bril (1935), Active, 2004.

8.0–0 a6 9.d4 b5 10.Bd3 Bb7 11.Nbd2 Nd5 12.Rc1 f5 13.Qc2 Bd6 14.Ne5?? (better is 14.Rfe1!?+=) 14...Ne5 (14...Be5!? 15.de5 Ncb4 16.ab4 Nb4 17.Qc7 Qc7 (17...Nd3?! 18.Qb7 Nc1 19.Bc1+=; 17...Qd3? 18.Qb7 Qd5 19.Qe7+–) 18.Rc7 Nd3 19.Rb7 Nb2–/+) 15.de5+= Be7 (15...Bb4!? 16.Nb3 Be7+=) 16.Nf3 (16.Nb3 Rb8+/–) 16...c6 (16...Qe8 17.Nd4 Qg6 18.Nc6=) 17.Rfd1 Rf7 (17...Qe8 18.Nd4 Qg6 19.Bf1+= (19.Nc6? Rac8–+)) 18.e4 fe4 19.Be4 Bg5 (19...g6!?+/–) 20.Bh7 Kh8 21.Ng5 Qg5 22.Qg6 Qg6 23.Bg6 Rf4 24.g3 Rg4 (24...Rf3 25.Bh5 Rff8 26.Bg4+–) 25.Bf7 Rf8 (25...Re4 26.Be6 a5 27.ba5 Ra5 28.Bf5+–) 26.Be6 Rc4 (26...Re4 27.Bd4+–) 27.Rc4 bc4 28.Bd4 (better is 28.Rd4 Kh7 29.Rc4 Rf3+–) 28...Rf3 29.Rc1 Ra3 30.Rc4 (30.Rc4 Ra4 31.Bc5+–) 1–0. Fournier,Frederic (1980) – NN, jeu.europe–echecs.com, 2013. (=1.Nf3 e6 2.a3 d5 3.b4 Nf6 4.Bb2 Be7 5.e3 0–0 6.c4 dc4 7.Bc4 Nc6)

8.0–0 a6 9.d4 Bd7 10.Bd3 b5 11.Nc3 Bc8 12.Ne4 Ne4 (better is 12...Nd5!?+/–) 13.Be4+– Bb7 14.Qc2 Qd6 15.Rac1 Nd8 16.Bh7 Kh8 17.Be4 Be4 18.Qe4 Qd5? (better is 18...Ra7+–) 19.Qd5 ed5 20.Rc7 Ne6 (20...Re8 21.Rd7 Rc8+–) 21.Re7 Rac8 22.Ne5 Rc2 23.Ba1 Ra2 (23...Ng5 24.Rd7+–) 24.Nf7 Kh7 25.Re6 Rf7 26.Ra6 Rd2 (26...Kg8 27.Ra5+–) 27.Rb6 Rd3 (27...Ra2 28.Rb5 Ra7 29.Rd5 R7a3 30.Ra5 Ra5 31.ba5 Ra5 32.Rd1+–) 28.Rb5 Ra3 29.Rd5 Rfa7 30.Ra5! R7a5 31.ba5 Ra5 32.Bc3 (32.Bc3 Ra2 33.d5+–) 1–0. Fournier,Frederic (1865) – litowai, Active, 2011.

8.0–0 Qd6 =.

8.Nc3 a6 9.0–0 b5 10.Ba2 Bb7 11.d4 Bd6 12.Qc2 Nd5 13.Nd5 ed5 14.Bd5 Bh2 15.Kh2 Qd5 16.Rh1 g6? (16...a5 17.e4 Qd6 18.Kg1 ab4 19.d5 ba3 20.Ra3=) 17.Qc3 (better is 17.e4!? Qd6 18.Kg1+–) 17...f6 18.e4 (18.Qc5!? Qc5 19.bc5+=) 18...Qe4+= 19.Rae1 Qg4 20.Kg1 Na7 (better is 20...Nd4 21.Qd4 Bf3 22.Qg4 Bg4+=) 21.Re7+/– Bf3?? (better is 21...Rf7 22.Rf7 Bf3 23.Qf3 Qf3 24.gf3 Kf7 25.Rh7 Ke6 26.Rc7 Nc8+=) 22.Qf3 Qf3= 23.gf3 Nc8 24.Rc7 Ra7 25.Rhh7+/– Rc7 26.Rc7 Nd6 27.Rc6 Nc4 28.Bc1 a5 29.ba5 Na5 30.Rb6 Nb3 31.Bb2 Nd2 32.Rb5 Nf3 33.Kg2 Ne1 34.Kf1 Nd3 35.d5 Nb2 36.Rb2 Ra8 37.Rb3 Ra5 38.Rd3 Kf7 39.d6 Ke8 40.d7 Kd8 41.Ke2 Re5 42.Kd2 f5 43.Kc3 g5 44.a4 f4 45.f3 Re2 46.a5 Ra2 47.Kb4 Re2?? 48.a6 Ra2 49.Ra3 Rb2 50.Kc5 Rb8 51.a7 Ra8 52.Kc6 g4 53.fg4 (53.fg4 Ke7 54.Rd3+–; 53.Kd6 g3 54.Rb3 g2 55.Rb8 Rb8 56.ab8Q) 1–0. Rush,Bradley – Simik,Frantisek, ZL–2011–0–00907, 2011.

8.Nc3 b6 9.d4 Nd5 (9...Bb7 10.0–0+=) 10.Nd5+/– ed5 11.Bd3 Bg4 (11...Bd7 12.Qc2 f5 13.Ba6+=) 12.h3 (12.Qc2!? Bd7+/–) 12...Bf3 (12...Bd7 13.Qc2 f5 14.Ba6+/–) 13.Qf3+/– f6?? (13...a5!? 14.Rc1 Na7 15.ba5 ba5+=) 14.0–0 (better is 14.Qf5 a5 15.Qh7 Kf7 16.Qg6 Kg8 17.b5+–) 14...Qd7 15.e4+– de4? 16.Qe4 f5+/– 17.Qf3 g6?? 18.d5 Nd8 19.Bc4 Qd6+/– 20.Qc3 Qf6?? 21.Qc2 Qd6+/– 22.Rfe1 Nf7?? 23.Bc1 Rfe8 24.Bh6?? Bf6–/+ 25.Rac1? Re1 26.Re1–/+ Qd7?? 27.Re6 Qd8 28.Qe2?? Ne5?? 29.Bb5 c6 30.Bc6 Nc6 31.dc6 Qd4 32.Re8 Kf7 33.Ra8 Qb2 34.Qb2 Bb2+– 35.c7 Ba3 36.c8Q Bb4 37.Qc7 Kf6 38.Qc6 Ke5 39.Re8 Be7 40.Re7 Kd4 41.Be3 Kd3 42.Rd7 Ke2 43.Qc2 Ke1 44.Qd2# 1–0. Nautiluschess – Conga, ICS blitz, 2001.

8.Nc3 e5 9.b5 Na5 10.Ne5 Nc4 11.Nc4 +=.

7.Nf3 Nbd7

8.0–0 a6 9.d4 +=.

8.0–0 b6 9.Qc2 Bb7 10.Ng5 h6=+ 11.Nh3 c5 12.b5 Qc7 13.f4 Rad8 14.d3 Bd5 15.Nd2 Ng4 16.Rae1 Bf6 17.Bf6 Ndf6 18.e4 Bc4 19.Nc4 Qd7 20.e5 Qd4 21.Kh1 Nd5 22.Re4 Nde3?? 23.Rd4?? Nc2=+ 24.Rd8 Rd8 25.Nd6 f6–+ 26.Nf2 Nce3 27.Ng4 Nf1 28.Kg1 Nd2 29.Ne3 Kf8 30.Kf2–/+ Ke7 31.Ke2 Nb3 32.Nec4 Nd4 33.Kd2 Nf5 34.g4 Nd6 35.Nd6 Rd6 36.ed6 Kd6 37.Ke3 Kd5 38.h3?! c4 39.d4 c3 40.Kd3 c2 41.Kc2 Kd4 42.Kb3 Ke4 43.Kb4 Kf4 44.a4 Kg3 45.a5 Kh3 46.ab6 ab6 47.Kc4 Kg4 48.Kd4 h5 (49.Ke3 Kg3–+) 0–1. Todaro,Giuseppe – Zarba,Caloggero, 1994.

8.0–0 b6 9.d4 Bb7 =.

8.0–0 Nb6 9.Bb3 h6 (9...a5 10.b5=) 10.d4 (10.Nc3 c6=) 10...a5 11.ba5 (11.b5 Bd7 12.Nc3 Nbd5+=) 11...Ra5 12.Nbd2 (12.Ne5 Nfd7=) 12...Bd7 13.Ne5 (13.Qc2 Na4=) 13...Ba4 (13...Bb5 14.Re1=) 14.Ba4 (14.Qc2 Bd6=) 14...Na4 15.Qb3 (15.Qc2 Ra7=) 15...Nb2 (15...Ra7 16.Rfc1=) 16.Qb2 Qa8 The pressure on the isolated pawn grows (16...Ra7 17.Rfc1=) 17.Ndc4 (17.a4 Rb8=) 17...Ra7 18.Rfb1 Ne4 (18...Nd5 19.Qc2=) 19.f3 (19.Qc2 Nd6=) 19...Nd6 20.Nd2 (20.Nd6 Bd6 21.Qc3 Ra4=) 20...Nf5 (20...Rd8 21.Qc1=) 21.Ndc4 (21.e4 Nh4=) 21...Rd8 22.Qc3 (22.a4 c5=) 22...Nd6 (22...c5 23.dc5 Bc5 24.f4+=) 23.Rb3 (23.Nd6 Bd6 24.Nc4 b6=) 23...Nc4 24.Nc4 Rd5 (24...c5 25.dc5 Bc5 26.Nb6 Bb6 27.Rb6=) 25.e4 (25.Rab1 Bf6=) 25...Rd8 26.Rab1 Bf6 27.e5 Bg5 28.g3 Rd5 29.f4 Bd8 30.Ne3 Rda5 31.Nc2 Ra4 32.Rb4 c6 33.Ra4 Ra4 34.Rb4 Be7+= 35.Rb3 Qa6 36.Kf2 Kf8 37.Qb2 Rc4 38.Ne3+/– Ra4 39.Rb7 Threatening mate... how? 39...Ba3 40.Rb8 Ke7 41.Qb7 Qb7 42.Rb7 Ke8 43.Rb6 Rd4= 44.Rc6 Rd2 45.Kg1 Re2 46.Nc2 Bb2 47.Rc4 Rd2+= ˝–˝. Liepert,L – Pfeiffer,M, Krumbach, 1981.

8.0–0 Nb6 9.d3 c5 10.Nbd2 cb4=+ 11.ab4 Bb4 12.Bd4 Nc4 13.Nc4 b6?? 14.Nb6!+/– ab6? 15.Ra8+– Qd5 16.Qa1 Bb7 17.Ra7 g5 18.Bf6 g4 19.e4 Qh5 20.Ne5 Bc8 21.Qc1 Bd6 22.Rf7! Rf7 23.Qc8 Bf8 24.Qe6 Bg7 25.Bg7 Kg7 26.Nf7 Qf7 27.Qf7 Kf7 28.Rb1 (28...b5 29.Rb5+–) 1–0. PeterRs – dannyboy238, ChessWorld.net, 2006.

8.0–0 Nb6 9.Be2 a5 10.b5 Bd7 =.

8.0–0 Nb6 9.Be2 c5 10.bc5 Bc5 11.Nc3 Nfd5 12.Qb3 Qc7 (12...Bd6 13.Ne4+=) 13.Rfc1+/– Qd6?? (better is 13...Qe7+/–) 14.Ne4+– Bd7 (14...Qd8 15.Nc5 Nd7+–) 15.Nd6 Bd6 16.a4 Bc6 17.Nd4 Ba4 (17...Rac8 18.Nc6 bc6 19.d4+–) 18.Ra4 Na4 1–0. marekt – robbyc1, ChessWorld.net, 2012.

8.0–0 c5 9.b5 (9.bc5 Bc5 10.d4 Be7=) 9...Nb6 10.Be2 Nbd5 (10...a6 11.ba6 ba6 12.Qc2=) 11.Nc3 (11.d4 Bd7=) 11...Qc7 (11...a6 12.Qc2=) 12.Nd5 (12.Qc2 Rd8+=) 12...ed5= 13.Qc2 Bg4 (13...Qd7 14.Rfc1=) 14.Rac1 h6 (14...Qd6!?=) 15.Bf6+/– Bf6 (15...gf6 16.a4+/–) 16.Qc5 Qc5 17.Rc5 Rfd8 (17...Rfc8 18.Rd5 Be6 19.Rd6+/–) 18.d4 (18.h3 Be7 19.Rc3 Be6+/–) 18...Rac8 (18...Be7!? 19.Rc3 Rdc8 20.Rc8 Rc8+=) 19.Rfc1+/– Ra8 (19...Be7 20.Rc8 Rc8 21.Rc8 Bc8 22.a4+/–) 20.Kf1 (20.h3 Be6+–) 20...Be7+/– 21.R5c3 Bd6 (21...Rac8 22.a4+/–) 22.h3 (22.Ne5 Be6+–) 22...Be6 23.Ne5 (23.Bd3 Rac8 24.a4 g6+–) 23...Be5 (23...Rac8 24.Bf3+–) 24.de5+– Re8 (24...Rdc8 25.Rc8 Rc8 26.Rc8 Bc8 27.Bf3+–) 25.a4 a6 26.ba6 ba6 27.a5 Bd7 28.Rd1 Re5 29.f4 Re4 30.Rd5 Re7 31.Rd6 Bb5 32.Kf2 Raa7 33.Rb6 Be2 34.Ke2 Re4 35.Rcc6 Rae7 36.Rc3 Ra7 37.Ra3 Kf8 38.Kf3 Re8 39.Rc3 Rea8 40.Rcc6 Ke7 41.e4 f6 42.Kg4 Kf7 43.Kh5 g6? 44.Kg4 h5 45.Kh4 Kg7 46.Rf6 Re7 47.e5 Rea7 48.Rg6 Kf7 49.Kh5 (49.Kh5 Kf8 50.Rbf6 Rf7 51.Ra6+–) 1–0. Eisenhauer,Erik – Armbrust,Matthias, Rheinhessen–ch HT2, 2000.

8.0–0 c6 =.

8.Qc2 a6 9.d4 =.

8.Qc2 Nb6 9.Be2 Bd7 10.Nc3 Nfd5 11.Nd5 Nd5 12.Bd3 h6 13.h4 a6 14.g4 Bf6 15.Nd4 Bb5 16.Bh7= Kh8 17.g5 Bd4 18.Bd4 f5 19.gf6 gf6 20.Bb2 a5 21.ba5 Qd7 22.Bg6 Ra5 23.Qc5 Rg8= 24.Rg1 e5 25.d4 b6 26.de5?? bc5–+ 27.ef6 Rg6 28.f7= Kh7 29.f8N Kg8 30.Ng6 Qd6 31.0–0–0 Kf7= 32.e4 Nf4?? 33.Rd6+– Ne2 34.Kd2 cd6 35.Nh8 Ke7 36.Rg7 Kd8 37.Nf7 Kc7 38.Nh6 Kc6 39.Nf7 c4 40.Nd8 Kb6 41.Rb7 Ka6 42.Ke2 c3 43.Rb5 Kb5 44.Bc3 (44...Ra3 45.Bf6+–) 1–0. Katalymov,Boris – Muratov,Vladimir, Alma Ata, 1961.

8.Qc2 c5 9.b5 b6 10.Ng5 Bb7 11.h4 Bg2 12.Rg1 Bb7 13.Nh7 Re8 (13...Be4 14.Nf6 Bf6 15.Qe4 Bb2 16.Ra2+=) 14.Ng5 Nf8 15.Nc3 Nd5 16.Nd5 ed5 17.Nf7! Qd7 (17...Kf7 18.Rg7 Combination) 18.Rg7 1–0. combijack (1795) – silhouet2003 (1660), gameknot.com, 2012.

8.d4 a5 9.b5 =.

8.d4 b6 9.Nbd2 (9.0–0 Bb7=) 9...Bb7 (9...a5 10.b5=) 10.0–0 c5 (10...a5 11.Qb3=) 11.b5 (11.bc5 bc5 12.Qe2 Rb8=) 11...Rc8 (11...a6 12.Qe2=) 12.Qe2 Ne4 (12...Bd6 13.Rfd1=) 13.Ne4+= Be4 14.dc5 (14.Rac1 Bf6+=) 14...Rc5 (14...Nc5 15.Rfd1 Qc7 16.Rac1=) 15.Rfd1 (15.Nd2!? Bb7 16.Nb3+=) 15...Bf3= 16.gf3 Qc7 (16...Bf6 17.Bf6 Qf6 18.f4+=) 17.Rac1 Bf6 18.Bd4 (18.Bd3 Bb2 19.Qb2 Rc8 20.Rc5 Nc5=) 18...Bd4+= 19.Rd4 Ne5 (19...a6 20.a4+=) 20.f4 Nc4 (20...a6 A) worse is 21.ba6 Nc6–/+ (worse is 21...Nc4 22.Rdc4 Qc6 23.Rc5 bc5 24.a7+=); B) 21.a4 ab5 22.ab5 Nc4 23.Rdc4+=) 21.Rdc4= ˝–˝. Rosen,Leon – Sharp,Sydney T, Manhattan CC–Franklin CC, 1911.

8.d4 c6 =.

5.c4 c5

6.b5 0–0 7.Nf3 b6 8.Be2 dc4 9.Bc4 Bb7 10.0–0 a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 Nd5 14.d4 Nd7 15.Nc3 Nc3 16.Bc3 cd4 17.Nd4 Nc5 (17...Ne5 18.Bb3 Qc7 19.Bb2=) 18.Qg4 (18.Nc6 Bc6 19.Qd8 Rd8 20.bc6 Rc8+=) 18...Bf6= 19.Nc6 Bc6 20.Bf6 Qf6 21.bc6 Rc8 22.Bb5 Rc7 23.Rd1 h6 24.Qg3 Qe7 25.h3 Ne4 26.Qe5 Nc5 27.Ra1 Kh7 28.Ra8 f6 29.Qb2 (29.Qd4 e5 30.Qd5 Kg6+/–) 29...Kg6 (better is 29...Ra7!? 30.Ra7 Qa7+/–) 30.Rb8 Qd6 31.Qc2 Kf7 32.Rb6 Nb7?? (better is 32...Ra7+/–) 33.Rb7+– Kg8 (33...g6 34.Qe4 Re7 35.Qd4+–) 34.Rc7 (better is 34.Qg6 Re7 35.Rd7 Rd7 36.Qe8 Kh7 37.Qd7+–) 34...Qc7 35.Qd3 (better is 35.Qe4!? Kf7 36.Bc4 Qd6+–) 35...Kf7 36.Qd7 (36.Qd7 Qd7 37.cd7+–) 1–0. Loulou – Arsenio, playchess.de, 2004.

6.b5 0–0 7.Nf3 Nbd7 8.Qc2 b6 9.d3 Bb7 10.Nbd2 Qc7 11.g3 a6 12.a4 ab5 13.ab5 Ra1 14.Ba1 Ra8 15.Qb2? (better is 15.Bb2+=) 15...dc4–+ 16.dc4? (better is 16.Qc3 Bd6 17.dc4–+) 16...Bf3 17.Nf3 Qa7 18.Bg2 Qa1 19.Qa1 Ra1 20.Ke2 Rh1 21.Bh1 Kf8 22.Nd2 Bd6 23.f4 Ke7 24.e4 Nh5 (24...e5!? 25.f5–+) 25.e5 Ne5! 26.fe5 Be5 27.Kf3 f5 28.Kf2 Bd4 29.Kf3 (29.Ke2 g5–+) 29...Nf6 30.h3 e5 31.g4 Ke6 32.gf5 Kf5 33.Ke2 e4 34.Bg2 Bc3 (34...g5!? 35.Ke1–+) 35.Nf1 g5 36.Ke3 (36.Ne3 Kf4–+) 36...Bd4 37.Ke2 Kf4 Black intends e3 38.Nd2 h5 Black prepares g4 39.Nf1 (39.Bh1 e3 40.Nf1 h4–+) 39...e3 (39...Ne8 40.Be4 Ke4 41.Ng3 Ke5 42.Nh5–+) 40.Bf3 g4 41.hg4 hg4 42.Bc6 Nh5 43.Nh2 (43.Bb7 Ng7–+) 43...Kg3 (43...Ng3 44.Kd3 e2 45.Kc2 e1Q 46.Nf1 Qc3 47.Kd1 Nf1 48.Ke2 Qe3 49.Kf1 Qf2) 44.Nf1 Kh3 45.Ne3 Nf4 46.Kd2 Be3 47.Ke3 Ng6 48.Bd7 Ne5 49.Be6 Kh2 50.Bg4 Ng4 51.Ke4 (51.Kf4 Nf2–+) 51...Kg3 52.Kd5 (52.Kd3 Ne5 53.Kc3 Kf4–+) 52...Ne3 53.Kc6 Nc4 54.Kd5 Nb2 55.Kc6 Na4 (better is 55...c4 56.Kb6 c3 57.Ka7–+) 56.Kd5 Kf4 57.Kc4 Ke4 58.Kb3 Kd3 59.Ka4 Kc4 0–1. Holz auf der Heide,Gerhard (1985) – Pohl,Gunnar (1690), Leipzig VfB op, 2006.

6.b5 b6 7.Nf3 Nbd7 8.cd5 ed5 9.Be2 0–0 10.0–0 Bb7 11.Nc3 Qc7 (11...Bd6 12.Qc2=) 12.Rc1 Rad8 (12...Rfe8 13.Re1=) 13.h3 (13.d4 Ne4+=) 13...Bd6 14.Qc2 Ne5 (14...c4 15.d3+=) 15.Ne5 Be5 16.Na4 d4 17.Bd3 de3 18.de3 Bb2 19.Nb2= Qe5 20.Nc4?? Qg5?? 21.f3 Rfe8 22.Rcd1 g6 23.Be2 Nd5–/+ 24.f4 Nf4!–+ 25.Bf3 Bf3 26.Rf3?? Rd1–+ 27.Qd1 Qg2# 0–1. Aubertin,Tim – Stuermer,Markus, 1.Saarlouis op, 1998.

6.bc5 dc4 7.Qa4 Nbd7 8.Bf6 Bf6 9.Nc3 =.

6.bc5 Bc5 7.Bf6 (7.cd5 ed5 8.Bf6 Qf6= (worse is 8...gf6 9.d4 Qa5 10.Qd2+/–)) 7...Qf6 8.Nc3 (8.d4 dc4 9.Bc4 Be7=) 8...d4 (8...dc4 9.Ne4 Qe5 10.Nc5 Qc5 11.Bc4=) 9.Ne4 Qe5 10.Nc5 Qc5 11.ed4 Qd4 12.Nf3 Qf6 13.Bd3 (13.d4 Nc6=) 13...Nc6 (13...Bd7 14.Rb1=) 14.Be4 0–0 15.Rb1 e5 (15...Nd4 16.0–0=) 16.Qc2 h6 (16...Kh8 17.0–0+= (worse is 17.Bh7 g6–/+)) 17.0–0 Qd6 (17...Re8 18.Qc3+=) 18.Rfe1 (18.c5 Qc7+/–) 18...f6 (18...Qa3 19.Bc6 bc6 20.Ne5+/–) 19.c5 (better is 19.Bd5 Kh8 20.Nh4+/–) 19...Qe7 (19...Qc7!?+/–) 20.d4 (better is 20.Qb3 Be6 21.Qb7 Qb7 22.Rb7+/–) 20...Kh8? (better is 20...Qf7+–) 21.Nh4 Qf7 22.Ng6 Kg8 23.Bc6 bc6 24.Nf8 Qf8 25.Qc4 Kh8 26.de5 fe5 27.Re5 Bf5 28.Rbe1 Qf6 29.Re8 Re8 30.Re8 Kh7 31.g4 Qg5 32.h3 h5 33.f4 (33.f4 Qf6 34.Qg8 Kg6 35.gf5 Kf5 36.Rf8 Kf4 37.Qg7 Qf8 38.Qf8 Ke4 39.Qd6+–) 1–0. Bertel,Michael (1765) – Wurm,Tamas, TE.2004.P.01714, 2004.

6.cd5 Qd5 7.Nc3 Qd8 8.b5 b6 (8...0–0 9.Nf3=) 9.Nf3 (better is 9.Qf3!? Nd5 10.Nd5 ed5 11.Bg7+/–) 9...Bb7 10.Be2 0–0 11.0–0 Nd5 12.Qc2 Bf6 13.Rad1 Nd7 14.d4 cd4 15.Nd5 Bd5 16.Bd4 Rc8 17.Qb2 Qe7 18.Rc1 e5 19.Bc3 1–0. Svensek,Marjan (2015) – Rotovnik,Franc (1920), SLO–chT1 East, 2006.

6.Nf3 Nc6 7.b5 Nb8 8.a4 0–0 9.d4 Nbd7 10.dc5 Nc5 11.Nbd2 Nfe4 12.Ne4 Ne4 13.Nd2?? Nd2 14.Qd2= a5 15.Qc2 Bb4=+ 16.Bc3 Qf6 17.Kd2?? Rd8 18.c5 d4 (19.Bb4 de3 20.Ke3 Qa1 –+ (20...ab4?! 21.Bd3–+)) 0–1. rustic – lena, Live Game Caissa's Web, 2005.

5.c4 c6

(--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.c4 e6 5.a3 Be7).

6.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 e6 5.a3 Be7 6.c4).

5.c4 Bd7

6.c5 c6 7.Nf3 0–0 (7...a5 8.Be2=) 8.Nc3 (8.Bd3 a5=) 8...Qc7 (8...a5 9.d4=) 9.d4 Ne4 (9...a5 10.b5=) 10.Ne4+/– de4 11.Ne5 f6 (11...Bc8 12.Qg4 f6 13.Nc4+/–) 12.Nd7 Nd7 (12...Qd7!? 13.Be2 f5+/–) 13.Bc4+– Kh8 14.Be6 Rae8 (better is 14...f5+–) 15.Qg4 f5 (15...Nb8 16.d5+–) 16.Bf5 Nf6 17.Qh3 b6 (17...Bd8+–) 18.d5! h6 (18...cd5 19.Bf6 Mate attack; 18...Nd5 19.Qh7 Mate attack) 19.d6 Bd6 20.cd6 Qd6 21.Rd1 Qe7 (21...Nd5+–) 22.Rd7 Nd7 (22...Kg8 23.Re7 Re7 24.Be6 Kh7+–) 23.Qh6 Kg8 24.Qh7 Kf7 25.Qg7 1–0. Janek – bitsky, internet, 2017.

6.d3 dc4 7.dc4 a6 (7...a5 8.c5=) 8.Nf3 (8.Bd3 a5 9.c5 0–0=) 8...Bc6 (8...a5 9.b5=) 9.Qd8 Bd8 10.Be2 Ne4 (10...Be7 11.0–0+=) 11.0–0 0–0 12.Nbd2 (12.Rd1 Be7+=) 12...Nd2 13.Nd2 Nd7 (13...Be7 14.Rad1+=) 14.Bf3 (better is 14.Rfd1 Ba4 15.Nb3+=) 14...Ba4? (14...Bf3 15.Nf3 Bf6 16.Bf6 Nf6 17.Rfd1=) 15.Ne4 f6 16.Bd1 Bd1 17.Rfd1+= f5?? 18.Ng3 Nf6 19.Bf6 Bf6= 20.Rac1 Rad8 21.Kf1 Bb2–/+ 22.Rd8 Rd8 23.Rc2 Ba3 24.b5 ab5 25.cb5 Bd6 26.Ke2 Ra8 27.Nh5 Ra5–+ 28.Nf4 Rb5 29.Ne6–/+ Re5 30.Nc7= Bc7 31.Rc7 Rb5 32.Rb7?? Rb7–+ 33.Kf3 Rf7 34.e4 g6 35.Kg3 f4 (36.Kf3 Kf8–+; better is 35...fe4 36.h3–+) 0–1. uno (1790) – Leitex (1655), ICC, 2003.

6.Nf3= 0–0 7.c5 (7.Qc2 Re8=) 7...a6 (7...a5 8.Ne5+=) 8.Nc3 (8.Qc2 Ne4=) 8...Nc6 (8...a5 9.Ne5=) 9.Be2 (9.d4 a5 10.b5 Na7+=) 9...e5= 10.d4 e4 11.Nd2 (11.Ne5 Na7=) 11...Bf5 12.0–0 Qd7 13.Rc1 Rad8 (13...Qe6 14.Rb1=) 14.f3 (14.Rb1 Qe6=) 14...ef3+= 15.Nf3 (15.Rf3 Qe6+=) 15...Ne4 (15...Qe6 16.Qd2+=) 16.Bd3 (16.Ne4 de4 17.Nd2 Bg5=) 16...Bg6 (16...Qe6 17.Kh1+=) 17.Nd2 (17.Qc2 Qe6=) 17...Nc3 (17...Ng3 18.Bg6 Nf1 19.Bh7 Kh7 20.Qh5 Kg8 21.Rf1+=) 18.Rc3= Qe6 (18...Rde8 19.Qf3=) 19.Bg6 (19.Qf3 Bg5 20.Bg6 Qg6=) 19...fg6+= 20.Nf3 Rf7 (20...g5 21.Qd3+=) 21.Qd3 Qe4?? (better is 21...Rdf8!?+=) 22.Qe4+/– de4 23.Nd2 Bf6 (23...Bh4 24.g3 Bf6 25.Ne4+/–) 24.Ne4+– Rdf8 (24...h5 25.Rd3+–) 25.Nf6 (25.Rb3 Ne7+–) 25...gf6 26.Rcc1 (26.d5 Ne5+–) 26...Ne7 (26...Re8 27.d5 Ne5 28.Be5 Re5 29.e4+/–) 27.Rce1 Re8 28.h3 f5+/– 29.e4 f4 30.d5+– Nc8 31.Bc1 g5 32.h4 h6 33.hg5 hg5 34.g3 Ref8 35.gf4 gf4 36.Kf2 Ne7 37.Ke2 Ng6 38.Rf2 Re8 39.Kd3 Ne5? 40.Kd4 Ng6 41.Ref1 Rd8? 42.Bf4 Nf4 43.Rf4 Rf4 44.Rf4 c6 45.Kc4 cd5 46.ed5 Kg7 47.d6 Rf8 48.Rf8 Kf8 49.Kd5 Ke8 50.c6 bc6 51.Kc6 Kd8 52.d7 (52.d7 Ke7 53.Kc7+–) 1–0. Szymanska,Maria – Szydlowska,Malgorzata, Grudziadz Poland, 1993.

6.Nf3= a5 7.b5 =.

5.c4 Nbd7

6.cd5 ed5 7.Nf3 0–0 8.Bb5 c6 9.Ba4 b5=+ 10.Bc2 c5 11.bc5= Bc5 12.d4 Bb6 13.0–0 Ba6 14.Bd3+= Ne4 15.Nbd2 Nd2 16.Nd2 Nf6 17.Qe2 Qd7 18.Rfc1 Rac8 19.h3 Ba5 20.Nb3 Bc7 21.Nc5+– Qd6 22.Na6?? Qh2 (23.Kf1 Qh1) 0–1. coloplayah (1925) – petemarkou (2160), net–chess.com, 2005.

6.Nf3 0–0!? +=.

6.Nf3 a5!? +=.

6.Nf3 b6 7.cd5+= ed5 8.Bb5 Bb7 9.Qa4 Rg8 (better is 9...a5!?=) 10.Ne5 Bc8?? (better is 10...a6 11.Bc6 b5+/–) 11.Nc6+– Bb7 12.Nd8 (12.Ne7?! Qe7 13.0–0 a6+=) 12...Rd8 (12...Kd8 13.Bc6 Kc8 14.0–0+–) 13.Qa7 Rb8 (13...c6 14.Qb7 cb5 15.Bf6 Bf6+–) 14.Qb8 Bc8 15.Qc8 Bd8 1–0. Durez,Cedric (1760) – Delboe,Charles, FRA–ch du Nord, 2003.

6.Nf3 b6 7.cd5+= ed5 8.Bb5 Bb7 9.Ne5 0–0 10.Nc6 (10.Nd7!? Nd7 11.Bg7 Kg7 12.Qg4 Kh8 13.Bd7+=) 10...Qe8= 11.Ne7 Qe7 12.0–0 c5 13.Qb3 c4 14.Qc3 a6 15.Ba4 b5 16.Bc2 Rfe8 17.f4 Rad8 18.Qd4 Nb8 19.f5 Nc6 20.Qh4 d4 21.ed4 Qe2 22.d5 Ne5 (worse is 22...Nd5 23.f6 h6 24.fg7+/–) 23.Qg3 Ned7 (worse is 23...Rd5 24.Nc3 Qd2 25.Rf2+=; 23...Bd5?! 24.Bd1 Qe4 25.d3 Qg2 26.Qg2 Bg2 27.Kg2+=) 24.Nc3 (24.d6!?=) 24...Qd2–/+ 25.Rac1 Qe3 (worse is 25...Bd5 26.Rfd1 Qg2 27.Qg2 Bg2 28.Kg2+/–) 26.Qe3 Re3 27.Rcd1 Nb6 28.d6 Nc8 29.a4 Bc6 (worse is 29...Nd6 30.ab5 ab5 31.Nb5+=) 30.ab5 ab5 31.h3 Nd6 32.Rd2 Ree8 33.Rfd1 Nb7 34.Rd8 Rd8 35.Rd8 Nd8 36.Kf2 Nd5 37.Nd5 Bd5 38.g4 f6 39.Ke3 Bg2 40.h4 Bh3 41.Kd4 Bg4 42.Kc5 c3 (42...Nf7!?–/+) 43.Bc3+= Be2 44.Be4 Kf7 45.h5 h6 46.Bd5 0–1. Agudelo,Carlos Hernan – Jimenez,Jose Mauricio (2225), Bucaramanga op, 2008. (=1.c4 Nf6 2.e3 e6 3.a3 d5 4.b4 Be7 5.Bb2 Nbd7)

6.Nf3 b6 7.cd5+= ed5 8.Bb5 Bb7 9.Ne5 c5 +=.

6.Nf3 c6 7.Qc2 a6 8.Nc3 b6 9.Be2 Bb7 10.h4 h6 11.0–0–0 Qc7 12.d4 0–0–0 (12...dc4!? 13.Bc4 a5+=) 13.Nd2 h5 14.Nb3 Ng4 15.Bf3 (15.cd5 ed5 (worse is 15...Nf2 16.dc6 Qc6 17.Bf3+/–) 16.Bd3 Kb8=) 15...Ndf6 (15...dc4!? 16.Na1 e5–/+) 16.cd5 Nd5 17.Nd5 cd5 18.Rd2 Rd7 19.Kb1 Kb8 20.g3 Nf6 21.Rc1 Ne4 22.Be4 de4 23.Qd1 Qd6 24.Rdc2 g6 25.Nd2 Rhd8? (better is 25...b5+=) 26.Nc4+– Qc6 27.Ne5 Qb5 28.Nd7 Rd7 29.Qe2 Qd5 30.Qc4 Qc4 31.Rc4 f6 32.R4c2 g5 33.hg5 fg5 34.Rh1 h4 35.Kc1 Bd5 36.Kd2 Rc7 37.Rc7 Kc7 38.Kc3 b5 39.Bc1 Kc6 40.Kd2 Kb6 41.Bb2 Kc6 ˝–˝. combijack (1725) – sissa (1755), gameknot.com, 2010.

5.d4 0–0

6.c4 a5 7.b5!? =+.

6.c4 a5 7.c5 b6 8.Nf3 Ne4 9.Nbd2 f5 10.g3 (10.Ne5 ab4 11.ab4 Ra1 12.Ba1 bc5 13.dc5 Bh4=) 10...Nd7 11.h3 bc5 12.bc5 Bf6 13.Rb1 Qe7 14.Bb5 Rb8 15.a4 c6 16.Bc6 Ndc5 17.Bb5? (better is 17.Qc2 Na6 18.Bb5+=) 17...Rb5!–+ 18.ab5 (18.Ne4 fe4 19.ab5 Nd3 20.Kf1 Bg5–+) 18...Nd3 19.Ke2 Ndf2 20.Qg1 (20.Ne4 Nd1 (20...Ne4?! 21.Rg1+=) 21.Nf6 Rf6 22.Rhd1 Rh6–+) 20...Nh1 21.Ne4 fe4 22.Nd2 Ng3! 23.Qg3 Bh4 24.Qg1 Bd7 25.Bc3 Be8 26.Kd1 Qc7 (26...Bh5!? 27.Kc2 Bf2 28.Qh2 Be3 29.Ra1–+) 27.Kc2 Qb6 28.Ra1 Qb5 29.Ra5 Qd3 30.Kb2 Bh5 (30...Bf2 31.Qf1 Qe3 32.Nb3–+) 31.Ra3 (31.Ra7 g6 32.Qh2 Rc8–+ (32...Qe3?! 33.Qe5 Bf6 34.Qe6 Kh8 35.Qd5–+)) 31...Rb8 32.Rb3 Rb3 (better is 32...Rc8!? 33.Qf1 Be2 34.Qg1–+) 33.Nb3 Bd1 34.Qh2 (34.Na1–+) 34...Qb5 35.Ka1 (35.Kc1 Bb3 36.Qe5 Qc4 37.Qe6 Kf8–+) 35…Qa4 (35...Qa4 36.Qa2 Qb3 37.Qb3 Bb3–+) 0–1. Illosvay,Istvan – Szijarto,Attila (1945), HUN–chT2 Asztalos, 2007.

6.c4 a5 7.Nd2 ab4–/+ 8.a4 c6 9.Qb3 Bd7 10.c5 Qa5 11.Bd3 b6 12.cb6 Qb6 13.e4 de4 14.Ne4 Ne4 15.Be4 Ra7 16.Ne2=+ c5 17.0–0 Nc6 18.dc5=+ Bc5 19.Qg3 Bd4?? 20.Bd4?? Nd4=+ 21.Nd4 Qd4–/+ 22.Qh4?? f5–+ 23.Rad1 Qe4 24.Qe7 Bc6 25.Qg5 h6 26.Qg3 Ba4 27.Rde1 Qc6 28.Qe3 Re7 29.Rc1 Qd5 30.Rc5 Qd7 31.Rc4 b3 32.Rb4 Rc8 33.h3 Rc2 34.Rb1 Qc6 35.Kh2 Qd6 36.Rf4 g5 37.g3 gf4 38.gf4 Qd2 39.Rg1 Kh7 40.Qg3 Qf2 (41.Qf2 Rf2 42.Kg3 Ra2–+) 0–1. Kopp,Norbert – Kaland,Joachim, Pinneberg–ch, 2003.

6.c4 c6 7.Nd2 Nbd7 8.Bd3 b6 9.Ngf3 Bb7 10.0–0 c5 11.bc5 bc5 12.Nb3 cd4 13.Nfd4 (worse is 13.Nbd4 e5 14.cd5 ed4–/+) 13...dc4 14.Bc4 Bd5 15.Bd5 Nd5 16.Nc6 Qc8?? (16...Qc7 17.Ne7 Ne7 18.Qg4+=) 17.Rc1 (better is 17.Qd5! ed5 18.Ne7 Kh8 19.Nc8 Rfc8 20.Rab1+–) 17...Qe8 18.Ne7 Qe7 19.e4 N5f6 20.Rc7 Qd8 21.Rc4 Nb6 22.Rd4 Qc7 23.Qf3 Rfd8 24.Rc1 Qe7 25.e5 Nfd5 26.Rg4 Rac8 27.Re1 Rc4 28.Rg3 Rdc8 29.Qh5 Rh4 30.Qd1 Rhc4 31.Nd4 Na4 32.Ba1 g6 33.Nf5 Qf8?? 34.Nd6+– Rc1 35.Qc1 Rc1 36.Rc1 Nab6 37.Bd4 Qh6 38.Be3 Qh5 39.Rf3 Ne3 40.fe3 Qe5= 41.Nf7 Qa5 42.h3 Nd5 43.Nh6 Kg7+= 44.Ng4 h5 45.Ne5 Nc3?? 46.Nc4+– Qd5? 47.Rc3 Qd1 48.Kh2 h4 49.e4 a5 50.e5 Qd5 51.Rfe3 Qd4 52.Nd6 Qf4 53.Kg1 Kh6 54.Ne8 Kg5 55.Nf6 Qd4 56.Ng4 Qd1 57.Kh2 Qd4 58.Rf3 a4 59.Rc6 Qe4 60.Rd6 Qc4 61.Rf6 Qc3 62.Rde6 Qg3 63.Kg1 Qe1 64.Rf1 Qc3 65.Rf3 Qc4 66.Ref6 Qd4 67.Kh2 Qd5 68.R6f4 Qe6 69.Rb4 Qd7 70.Re4 Qc6 71.Ree3 Qe6 72.Rc3 Qd5 73.Rc7 Qd4 74.Rc6 Qd5 75.Rc8 Qd4 76.Ra8 Qd7 77.Ra5 Qc7 78.Ra4 1–0. Skrzypczak,Michal (1980) – Gorski,Boguslaw (1855), Mistrzostwa sekcji L.K.S. PIAST Srem Poland, 2013.

6.c4 c6 7.Nf3 b5 8.c5 Nbd7 9.a4 ba4 10.Ra4 a5 11.b5 cb5 12.Bb5 Ba6 13.Ba6 Ra6 14.Qe2 Ra8 15.Nbd2 Qc7 16.Bc3 Qc6 17.Ra5 Ra5 18.Ba5 Qa4 (18...Ra8!? 19.Bc3 Ra3=) 19.Bc3 Bd8 (19...Qa3 20.Nb1 Qa4 21.0–0+=) 20.0–0 Ba5?? (20...Qc2!? 21.Bb4 Qa4+/–) 21.Ba5 Qa5+/– 22.Rb1 Nc5 23.dc5+– Qc5 24.Qb5 Qd6 25.Qb6 Qd8 26.Qd8 Rd8 27.h3 Kf8 28.Ne5 Ke7? 29.Ndf3 Ne4 30.Nc6 1–0. Slavisa2 – Taiko, Live Game Caissa's Web, 2004.

6.c4 c6 7.Nf3 Nbd7 8.Nbd2 b6 9.c5 bc5 10.bc5 Qa5 11.Qc2 Rb8 12.Bc3+= Qc7 13.Bd3 Re8 14.0–0+/– Nf8 15.Ne5 N6d7 16.f4 f5 17.Ndf3 h6 18.g4 Ne5+= 19.Ne5 g6 20.Kh1 Bf6 21.Rg1 Kh7 22.Rg3 Be5 23.fe5 Qb7 24.Qd2 Qf7 25.Rag1 Re7 26.Rh3 Qg7 27.Ba5 Re8 28.Qe2 Qf7 29.Bd2 Kg7 30.Rf1 Qe7+/– 31.Qg2 Qf7? 32.e4!+– de4 33.Bh6 Kg8 34.Be4! Ba6 35.Bd3 Bd3 36.Rd3 Qh7 37.Bg5 Qf7? 38.Bf6 Nh7 39.gf5 ef5 40.Rg3 Nf8 41.Rf5 Rb1 42.Rf1 Rf1 43.Qf1 Qd5 44.Qg2 Qd4 45.Rg6! Kf7 46.e6! Re6 47.Rg7 (47...Ke8 48.Bd4 Ng6 49.Rg6 Re1 50.Bg1 Ke7 51.Qg5 Kd7 52.Rg7 Ke8 53.Qg6 Kd8 54.Qd6 Ke8 55.Qb8#) 1–0. Skalozubov,Alexander – Janas,Sebastien, Artek ol U16, 1999.

6.c4 c6 7.Nf3 Ne4 8.Bd3 Nd7 9.Nc3 Nc3 10.Bc3 Nf6 11.Qc2 h6 12.c5 b6 13.a4 bc5 14.bc5 a5 15.0–0 Ba6 16.Ne5 Qc7 17.Ba6 Ra6 18.Qd2 Ra7 19.Rab1 Ne4 20.Qe1 Bf6 21.f4 Be5 22.fe5 Rb7 23.Rb7 Qb7= 24.Ba5 Qb3 25.Qd1?? Qe3–+ 26.Kh1 Nf2 27.Kg1?? Nd1 28.Kh1 Nf2 (29.Rf2 Qc1 30.Be1 Qe1 31.Rf1 Qf1#) 0–1. slavisa99 – RoyalCanin, Live Game Caissa's Web, 2004.

6.Nd2 a5 7.b5 c5 8.Ngf3 Nbd7 9.a4 b6 10.c3 Bb7 11.Bd3 Qc7 12.Qc2 Rac8 13.h4 Rfe8 14.0–0–0 cd4 15.ed4 e5 16.de5 Ne5 17.Bf5 Rcd8 18.Nd4 g6 19.Bh3 Bc5 20.N2b3 Bd6 21.Kb1 Nc4 22.Bc1 Ne4 23.Rd3 Bf4 24.g3 (24.Ka1!?–/+) 24...Bc1–+ 25.Kc1 Qd6 26.Qa2 Bc8 27.Bg2 Ne5 28.Re3 Bb7 29.Bh3 f5 30.h5 Rc8 31.Kb2?? (31.hg6 hg6 32.Kc2 Nf2 33.Rh2–+) 31...Nc4–+ 32.Ka1 Ne3 33.fe3 Rc3 (better is 33...Nc3 34.hg6 Na2 35.gh7 Kh8 36.Ka2–+) 34.hg6 hg6 35.Bf5 gf5 36.Nf5 Qf8 37.Nbd4 Ra3 38.Nh6 Kg7 39.Nhf5 Kf6 40.Rh6 Ke5 41.g4 Ra2 42.Ka2 Nc3 43.Kb2 Na4 44.Kc2 Qc5 (44...Qc5 45.Kd3 Qc4 46.Kd2 Qf1–+) 0–1. Shalaby,Hussein Ismail – Aldeeb,Ahmed M, Kuwait KUW, FIRM Open, 2013.

6.Nd2 c6 7.c4 Nbd7 8.Ngf3= h6 9.Qc2 Nb6 10.c5+= Nbd7 11.Bd3 a5 12.b5 a4 13.0–0 Re8 14.Rab1 Bf8 15.Bc3 Nb8 16.Ne5 cb5 17.Rb5 h5 18.Ndf3+– g6 19.Bg6! Re7 20.Bd3 Nc6 21.Rb6 Ne5 22.Ne5 Bg7 23.f4 Ng4 24.Rd6 Ne3?? 25.Rd8 Bf8 26.Qe2 (26...Rc7 27.Qe3+–) 1–0. Netsurferdude – ahmed sharkawy_1, ChessWorld.net, 2005.

6.Nd2 Nbd7 7.Be2 Nb6 8.Ngf3 Na4 9.Qc1 Bd7 10.c4 (10.Ne5 a5=) 10...a5+= 11.c5 ab4 12.ab4 Nb2 (12...Qe8!?+=) 13.Qb2= Ra1 14.Qa1 Qa8 (14...Qe8 15.0–0=) 15.0–0+= b6 16.Rb1 (16.Qc3 Qb7+=) 16...Rb8 17.g3 g6 18.Kg2 Ne4 19.Qa8 (19.Ne4 de4 20.Ne5 Be8=) 19...Ra8 20.Ne4 de4 21.Ne5 Be8 22.cb6 cb6 23.b5 f6 24.Nc6 (24.Nc4 Rb8=) 24...Bd6 25.Bc4 Bf7 26.Rb2 g5 27.Ra2 Ra2 28.Ba2 Bc7 29.d5 ed5 30.Ne7 Kf8 31.Nd5 Bd8 32.Nc3 Ba2 33.Na2 Ke7 34.g4 Ke6 35.Nc3 f5 36.h3 Ke5 37.gf5 Kf5 38.Ne2 Ke5 39.Nd4 (39.Nc3 Bc7=) 39...Kd5+= 40.Kg3 h5 41.f3 Bf6 42.Nc6 Bc3 (42...Kc5 43.Na7–/+ (43.fe4?? Kb5 44.Na7 Kc5–+)) 43.Na7 Be1 44.Kg2 Bb4 45.Kf2 Bc5 46.Ke2 Ke5 47.Nc6 Kf5 48.Nb8 ef3 49.Kf3 g4 50.hg4 hg4 51.Kf2? (better is 51.Ke2+=) 51...Ke4–+ 52.Nd7 Be3 53.Kg3 Kf5 54.Kg2 Ke6 55.Nb8 Bf4 56.Nc6 Kd6 57.Kf2 Kc5 58.Na7 Bb8 59.Nc6 Bc7 60.Na7 Kc4 61.Kg2 Bf4 62.Kf2 Kd3?? (better is 62...Be5–+) 63.Nc8= Ke4 64.Nb6 Be3 65.Kg3 ˝–˝. Pozanco Romasanta,Marc (1780) – Parals Marce,Luis (2125), 4th Open De Llinars Group A, 2010. (=1.d4 d5 2.b4 e6 3.a3 Nf6 4.Bb2 Be7 5.e3 0–0)

6.Bd3 a5 7.b5 c6 8.c4 dc4=+ 9.Bc4 cb5 10.Bb5=+ b6 11.Nf3 Ba6 12.Ba6 Na6 13.Nc3 Qd7 14.Ne5 Qb7 15.0–0 Rfd8 16.Qb3 Nc7 17.a4 Rab8 18.Rac1 Bd6 19.Nc4 Ncd5 20.Nd6 Rd6 21.Nd5 Qd5= 22.Rc4 Ne4 23.Rfc1 Rdd8 24.Qc2 ˝–˝. Behrmann,Klaus Joergen – Reser,Michael J, CiF, 1998.

6.Bd3 c6 7.Nf3 a5 8.ba5 Qa5 9.Nbd2 =.

6.Bd3 c6 7.Nf3 Nbd7 8.Nc3 Bd6 9.0–0 e5 10.de5 Ne5= 11.h3 Nd3=+ 12.cd3 Bf5 13.d4 Re8–/+ 14.Re1 Ne4 15.Ne4 de4 16.Ne5 Be5 17.de5=+ Qd1 18.Rad1 Be6 19.Rd4 Bd5 20.Rd2 Re6 21.a4 Rh6 22.b5 Rb8 23.Rc1 Rg6 24.Bd4 a6 25.Ba7 Re8 26.Bd4 h5 27.ba6= ba6 28.a5 Rb8= 29.Ba7 Rb5=+ 30.Bb6 Re6 31.f4 ef3–+ 32.gf3 Re5?? 33.e4= Rg5 34.Kf2+/– Be6 35.Rc6 Bh3=+ 36.Be3? Rg2–+ 37.Ke1 Rb1 38.Rd1 Rbb2 39.Rd2=+ Rbd2 40.Bd2= Rg1 41.Ke2 Rg6 42.Rc7 Be6 43.Ke3 h4–/+ 44.Ra7?? Bc4 45.Bc3 h3–+ 46.Be5 Rg2 47.Rc7–/+ Bb5 48.Rc1 h2 49.Rh1= Ra2 50.Bc7 Ra3 51.Kf4 Be2–/+ 52.Rh2 Rf3 53.Kg5 Bd3 (better is 53...f6 54.Kg4 Bd1–+) ˝–˝. Arnedo,David – Sanchez,Manel, Logrono Once–ch, 2002.

6.Nf3 Nbd7 7.c4 dc4 8.Bc4 a5 9.b5 Nb6 10.Bd3 Bd7 11.0–0 Qe8 12.a4 Nbd5 13.Ne5 Nb4 14.Be2 Rc8 15.Nd2 c6 16.Nb3 cb5 17.Nd7 Nd7 18.Na5 b6 19.Nb3 ba4 20.Ra4 Nf6 21.Nd2 Nfd5 22.Ra7 Bd6 23.g3 Qc6 24.Bc4 b5 25.Bb3 Qb6 26.Qa1 Bb8 27.Ra8 Nd3 28.Ne4 Qb7 29.Ra5 0–1. Wilk,A – Domanski,J, Poland, 1999.

6.Nf3 Nbd7 7.Be2 Ne4 8.Nbd2 f5 9.0–0 Ndf6 10.c4 c6 11.cd5 (11.Ne5 a5+=) 11...cd5 (11...ed5 12.Ne5=) 12.Qb3 Bd7 13.Ne5?? (13.Ne4 fe4 14.Ne5 Qb6=) 13...Bd6 (Better is 13...Nd2 14.Qd3 Nf1 15.Rf1 a6–+) 14.Ne4= (14.Nd7 Nd2 (14...Qd7?! 15.Nf3=; 14...Nd7?! 15.Nf3=) 15.Qc2 Bh2 ( 15...Qd7?! 16.Qd2 a5 17.b5=; Worse is15...Nf1 16.Nf8 Ne3 17.fe3 Qf8 18.Rc1–/+) 16.Kh2 Nf1 17.Rf1 Qd7–+) 14...fe4 15.Nd7 Qd7 16.f3 a6 17.fe4 Ne4 18.Qd1?? Rf1?? 19.Qf1 Rf8 20.Qe1 Qf7 21.Bf3–/+ Qg6 22.Be4 Qe4 23.Qe2? Qh4–+ 24.g3? Bg3! 25.hg3 Qg3 26.Qg2 Qe3 27.Kh1 Rf6 28.Bc1 Rh6 29.Qh2 Rh2 30.Kh2–+ Qd4 0–1. b4_player (1955) – floryncd, GameColony.com, 2002.

5.d4 a5

6.Nf3 Nbd7 7.c4 c6 8.c5 b6 9.Bd3 0–0 10.Nbd2 bc5 (10...Ba6 11.Ba6 Ra6 12.Qe2=) 11.bc5 Rb8 (11...Ba6!? 12.Ba6 Ra6=) 12.Rb1 a4 (12...Qc7 13.0–0+=) 13.0–0 (13.Qa4!? Bb7 14.Qa7+/–) 13...Qa5 14.Qc2 (14.Qe2 Rd8+=) 14...h6 (better is 14...Ba6!?=) 15.Bc3+/– Qa8 16.Rb6?? (better is 16.Rb8 Nb8 17.Rb1+/–) 16...Nb6–+ 17.Rb1? (17.cb6 Rb6 18.Bb4 Bb4 19.ab4 Ba6–+) 17...Nc4 (better is 17...Nbd7!? 18.Rb8 Nb8 19.Qd1–+) 18.Bc4 (18.Rb8 Qb8 19.Nc4 dc4 20.Bc4 Qa8–+) 18...Rb1 19.Qb1 dc4 20.Nc4 Nd5 21.Qc2 Ba6 22.Nce5 Bb5 23.Bb4 Nb4 24.ab4 a3 25.Qa2 Qa6 26.g4 f6 27.Ng6?? Re8–+ 28.Qe6 Kh7 29.Qe4 Kg8 30.Ne7?? Re7!–+ 31.Qe7 Qa8 32.Qe6= Kh8 33.Qa2 Qa4 34.h4?? Be2 35.Kg2 Bc4–+ 36.g5?? Ba2 37.gh6 Bd5 38.hg7 Kg7 39.h5 a2 40.h6 Kh6 41.Kg3 Bf3 42.Kf3 Qc2 43.b5 cb5 44.c6 Qc6 45.e4 a1Q 46.d5 Qac3 47.Kg2 Qd6 48.e5 Qce5 49.Kf3 Qdd5 50.Kg4 Qde4 (51.Kh3 Qh5 52.Kg3 Qhh4#; 50...Qh5 51.Kg3 Qdf3#) 0–1. tambor17 – sophargoun, Live Game Caissa's Web, 2005.

5.d4 a6

6.c4 b6

7.Nc3 A) 7...Bb7 8.c5 (8.Qf3 c5 9.bc5 bc5 10.dc5 Qa5 11.cd5 Bd5 12.Qd1 Nbd7=; 8.Nf3 0–0 9.cd5 Nd5 10.Bd3 Nf6 11.0–0 Nbd7 12.Qe2 c5+=; 8.cd5 ed5 9.Bd3 c5 10.bc5 bc5 11.Nf3 c4 12.Bf5 0–0=) 8...0–0 9.Nf3 Nc6 10.Bd3 bc5 11.bc5 a5 12.Qe2 Nb8+=; B) 7...0–0 8.Bd3 (8.Qf3 c5 9.bc5 bc5 10.dc5 Bc5 11.cd5 ed5 12.Bd3 Bd6+=; 8.Rc1 Nbd7 9.Nf3 Rb8 10.Bd3 c5 11.b5 ab5 12.Nb5 Bb7=; 8.Nf3 c6 9.Bd3 dc4 10.Bc4 b5 11.Bd3 a5 12.ba5 Qa5=) 8...dc4 9.Bc4 Bb7 10.Nf3 Qd6 11.0–0 Rc8 12.Qe2 a5=; C) 7...c6 8.Nf3 (8.Bd3 0–0 9.Nf3 dc4 10.Bc4 b5 11.Bd3 a5 12.ba5 Qa5=; 8.Qf3 0–0 9.Bd3 dc4 10.Bc4 a5 11.b5 Bb7 12.Nge2 Ra7=; 8.Be2 0–0 9.Nf3 dc4 10.Bc4 b5 11.Bd3 a5 12.ba5 Qa5=) 8...0–0 9.Bd3 dc4 10.Bc4 b5 11.Bd3 a5 12.ba5 Qa5=.

7.c5 0–0 8.Nc3 (8.Nf3 a5 9.Bd3 c6 10.Nc3 Ba6 11.0–0 Bd3 12.Qd3 Nbd7=; 8.Bd3 a5 9.Nf3 c6 10.Nc3 Ba6 11.0–0 Bd3 12.Qd3 Nbd7=; 8.Be2 a5 9.Nf3 ab4 10.ab4 Ra1 11.Ba1 c6 12.Qa4 Qc7=) 8...Nc6 9.Nf3 bc5 10.bc5 Re8 11.Bd3 Bf8 12.Qc2 e5 +=.

7.c5 a5 8.Nc3 (8.Nf3 ab4 9.ab4 Ra1 10.Ba1 0–0 11.Bd3 c6 12.Qa4 Bd7=; 8.Bd3 ab4 9.ab4 Ra1 10.Ba1 c6 11.Nf3 Ba6 12.0–0 Qc7=; 8.Be2 ab4 9.ab4 Ra1 10.Ba1 c6 11.Nf3 Ba6 12.Ba6 Na6=) 8...0–0 9.Bd3 bc5 10.bc5 Ba6 11.Nf3 Bd3 12.Qd3 Nc6 =.

7.c5 bc5 8.dc5 (8.bc5 Nc6 9.Nd2 Bd7 10.Rb1 0–0 11.Bd3 Nb8 12.Qe2 Ra7+=) 8...Bd7 (8...a5 9.Bd3 ab4 10.ab4 Ra1 11.Ba1 0–0 12.Nf3 Nc6=) 9.Nf3 Bc6 (9...a5 10.Bd3 ab4 11.ab4 Ra1 12.Ba1 Qc8+=) 10.Bd3 0–0 (10...Bb5 11.0–0 Bd3 12.Qd3 a5+=) 11.Ne5 (11.Nc3 Bb7 12.0–0 a5+=) 11...Bb5 12.0–0 Bd3 (12...Nfd7+=) 13.Qd3 c6 14.Nd2 Qc7 15.f4 Rd8 16.Ndf3 a5? (better is 16...Ne4!?=) 17.Ng5+/– Rf8 18.Rf3 (better is 18.Nc6 Nc6 19.Bf6+–) 18...h6= 19.h4? (better is 19.Ngf7 Rf7 20.Nf7 Kf7 21.Rg3+=) 19...hg5–+ 20.hg5 Ne4 21.Rh3 Nd7 (21...ab4 22.ab4 Ra1 23.Ba1 f6 24.gf6 Bf6–/+ (24...Rf6 25.Qe2 Rf5 26.g4 Re5 27.Be5+–; worse is 24...Nf6 25.Ng6 Re8 26.Rh8 Kf7 27.Ne5 Qe5 28.fe5 Rh8 29.ef6 gf6 30.e4+/–)) 22.Qe2+= Nef6?? (22...Ng5 23.Rh1 Ne5 24.Be5 Qd7+=) 23.Kf2 (23.Nd7 Qd7 24.Bf6 Rfe8 25.Qh5 Bf6 26.Qh8) 23...g6?? (23...Ne4 24.Kg1 Ng5+=) 24.Rah1 (better is 24.Nd7 Ne4 25.Ke1+–) 24...Ne4+/– 25.Kg1 Ne5 (25...Ndf6 26.Nd7!! d4 27.Bd4+–) 26.Be5 (26.Rh8 Kg7 27.R1h7) 26...Qe5+– 27.fe5 Bg5 (27...Ng5 28.Qg4 f5 29.Rh8 Kf7 30.R1h7 Nh7 31.Rh7 Ke8 32.Qg6 Kd7+–) 28.Rh8 1–0. Martinez Rodriguez,E (2015) – Armesto Rodriguez,J, Trevias Spain, Open, 2006.

7.c5 Bd7 8.Be2 (8.Bd3 Bb5 9.cb6 cb6 10.Bb5 ab5 11.Nc3 0–0 12.Qd3 Na6+=; 8.Nc3 a5 9.Nf3 ab4 10.ab4 Ra1 11.Ba1 0–0 12.Bd3 Nc6=; 8.Nf3 0–0 9.Bd3 Bb5 10.cb6 c6 11.b7 Ra7 12.0–0 Rb7=) 8...0–0 9.Nf3 a5 10.0–0 Re8 11.Nc3 Bc8 12.Qd2 Bb7 +=.

7.Nf3 A) 7...Bb7 8.Bd3 (8.c5 a5 9.Bd3 c6 10.Nc3 Ba6 11.0–0 0–0 12.Na4 Bd3=; 8.Nbd2 0–0 9.Bd3 dc4 10.Nc4 a5 11.b5 c6 12.Qa4 cb5=; 8.cd5 Nd5 9.Bd3 0–0 10.Qc2 f5 11.0–0 Bd6 12.Nbd2 Nc6+=) 8...dc4 9.Bc4 0–0 10.0–0 Re8 11.Nc3 b5 12.Bd3 Nc6+=; B) 7...Nbd7 8.c5 (8.Bd3 dc4 9.Bc4 Bb7 10.0–0 c5 11.bc5 bc5 12.Qe2 Rb8=; 8.Be2 c5 9.dc5 bc5 10.cd5 ed5 11.bc5 Nc5 12.0–0 0–0=; 8.cd5 ed5 9.Bd3 c5 10.dc5 bc5 11.bc5 Nc5 12.0–0 0–0=) 8...0–0 9.Bd3 a5 10.c6 Nb8 11.b5 Bd6 12.Nc3 Ng4+/–; C) 7...0–0 8.Be2 (8.Bd3 dc4 9.Bc4 Qd6 10.0–0 Bb7 11.Nc3 Nbd7 12.Rc1 Rfd8+=; 8.Nc3 c6 9.Bd3 dc4 10.Bc4 a5 11.b5 Bb7 12.0–0 Nbd7=; 8.Nbd2 a5 9.ba5 Ra5 10.Bd3 Nbd7 11.0–0 Bb7 12.Qc2 Re8=) 8...dc4 9.Bc4 Bb7 10.0–0 b5 11.Bd3 Qd6 12.Nc3 Rd8+=.

5.d4 b6

6.c4 0–0 7.Bd3 =.

6.c4 dc4 7.Bc4 (7.Qf3 Nd5 8.e4 c3 9.Nc3 Nc3 10.Bc3 c6+=) 7...Bb7 8.Nf3 Nbd7 9.0–0 0–0 10.Nbd2 c5 11.bc5 bc5 12.Qe2 Bd5 (12...Rc8 13.Rab1=) 13.Bd5 (13.e4 Bc4 14.Nc4 Rc8+=) 13...Nd5= 14.Rfd1 cd4 15.Bd4+= Bf6 16.Nc4 Bd4 17.Rd4 Qf6 18.Rc1 Rac8 19.Qd2 Nc5 20.Qd1 h6 21.Nce5 Qe7 22.Rdc4 Nb6 23.Rd4 Ncd7?? 24.Nc6 Qe8+/– 25.Na7 Ra8 26.Nb5 Nf6? 27.Nc7 Qe7 28.Na8 Ra8 29.Rb4 Nbd5 30.Ra4 Rd8 31.Qb3 Nd7 32.Rac4 N7b6 33.Rc6 Ra8 34.a4 Ra4 35.Rb6 Nb6 36.Qb6 Qa3 37.Rc8 (37…Kh7 38.Qb1 g6 39.Ne5=). Bott,Hans Joachim – Popovic,Petar, Badenweiler op, 1994.

6.Bd3 0–0 =.

6.Nf3 Bb7 7.c4 c5 8.bc5 bc5 9.cd5 Bd5 10.dc5 Bc5 11.Be2 0–0 12.0–0 Be7 13.Nc3 Bb7 14.Qd8 Rd8 15.Rfd1 Nc6 16.Rd8 Rd8 17.Rd1 Rd1 18.Bd1 Na5 19.Ne5 h6 20.Be2 Bd5 21.Nd5 Nd5 22.g3 f6 23.Nf3 Nb6 24.Nd4 Nbc4 25.Bc4 (Better is 25.Bc3!?+=) 25...Nc4=+ 26.Bc1 e5 27.Nc6 Ba3 28.Ba3 Na3 29.Na7 Nc4 30.Nc6 Kf8 31.Kg2 Ke8 32.Kf3 Kd7 33.Nb4 Kd6 34.e4 g6 35.Nd5? Nd2–+ 36.Ke3 Nc4?? 37.Kd3+/– Nb2 38.Kc2 Nc4 39.Kd3 Nb2= 40.Kc2 1–0. slavisa10 – DieBushDie, Live Game Caissa's Web, 2004.

6.Nf3= Bb7 7.Nbd2 0–0 8.c4 c5 9.b5 a6=+ 10.a4 Nbd7 11.Be2 dc4 12.Bc4= ab5 13.Bb5 Ba6 14.Qe2 Bb5 15.Qb5 Nd5 16.0–0 cd4 17.Bd4 Bc5 18.e4 Ne7 19.Ra2 Bd4 20.Nd4 Ra5 21.Qb2 Nc5 22.Rfa1 Ra6 23.f3 Qd7 (The pressure on the isolated pawn grows) 24.a5 Rd8 25.N2b3= Nb3 26.Nb3 ba5 27.Ra5 Qa7 28.Qf2+= Qf2 29.Kf2 Ra5 30.Ra5 g6 31.Ra2 Nc6 32.Rd2 Rd2= 33.Nd2 Kg7 34.Ke3 Kf6 35.f4 e5 36.g3 ef4 37.gf4 Ke6 38.Nf3 f6 39.h4 h6 40.Nd4 Nd4 41.Kd4 g5 42.fg5 fg5 43.hg5 hg5 44.Ke3 Ke5 45.Kf3 g4 46.Kg4 Ke4 ˝–˝. Johnke,Stefan – Rohde,Torsten (2010), GER–ch U14 Willingen, 2001.

6.Nf3= Bb7 7.Bd3 0–0 =.

6.Nf3 c5 7.dc5 bc5 8.bc5 Bc5 9.Bd3 0–0 10.Nbd2 Nbd7 11.0–0 Rb8 12.Rb1 Qe7 13.c4 Bb7 14.cd5 Bd5 15.a4 Rfc8 16.Bd4 e5 17.Rb8 Rb8 18.Bc5 Nc5 19.Bc4 Bc6 Attacking the isolated pawn on a4 20.a5 Rd8 21.Qa1 Nce4 (better is 21...Ng4!? 22.h3 Bf3 23.Nf3 e4 24.hg4 ef3 25.gf3 Nb7+=) 22.Ne4+/– Ne4 23.Ne5 Bd5 24.Bd5 Rd5 25.Nf3 h6 26.Rd1 (26.Rc1 Qd8+/–) 26...Qd7 (better is 26...Qa3!=) 27.Rd5 Qd5 28.Nd4 Qe5 29.g3 Nd2 30.Qc3 Nf3 31.Kg2 Nd4 32.Qd4 (better is 32.ed4 Qe4 33.f3 Qe2 34.Kh3+/–) 32...Qa5= 33.h4 Qc7 34.Qe4 a5 35.Kh2 Qb6 36.Qe8 Kh7 37.Qf7 Qb4 38.Qf5 Kg8 39.Qd5 Kh7 40.Kg2 a4 41.Qd3 Kg8 42.Qd5 Kh7 43.Qa2 (43.Qf5!? Kg8 44.h5+=) 43...Qb3 44.Qa1 a3 45.Qe5 Qb2 46.Qe4 0–1. Fournier,Frederic (1670) – albertini25 (1625), ChessOK.com, 2013.

6.Nf3= c6 7.Ne5 =.

5.d4 Nbd7

6.c4 c6 7.Nf3 0–0 8.Nc3 a6 9.c5 Qc7 10.Bd3 e5 11.de5 Ne5 12.Ne5 Qe5 13.Na4 Qc7 (13...Qg5!? 14.Qf3 Bg4=) 14.Nb6+/– Rb8 15.h4 (Better is 15.Nc8!? Rfc8 16.Bd4+/–) 15...Bg4 16.f3 Bc8 17.Kf2 Nh5 18.f4+/– Nf6 19.h5 Bg4 20.Qc2 Ne4? 21.Be4+– de4 22.Qe4 Rbe8 23.Qd4 Bf6=+ 24.Qd2 Bb2 25.Qb2 Qe7 26.Rae1 Rd8 27.h6+– Qf6 28.Qf6 gf6 29.Nc4 Rfe8 30.Rh4 f5 31.Reh1?? Re4 32.Ne5 Rd2+= 33.Kg3 Re3= 34.Kh2 Ree2 35.Ng4 Rg2 36.Kh3 Rg4 37.Rg4 fg4 38.Kg4 Rg2 39.Kf5 Rg6 40.Re1 Kf8 41.Re5 Re6?? 42.Re6+– fe6 43.Ke6 Ke8 (44.f5 Kd8+–). serbiansaint – jury, Caissa's Web, 2004.

6.c4 c6 7.Nf3 0–0 8.Nbd2 a5 9.b5 Nb8 10.cd5 cd5 11.Bd3 Bd7 12.Qb3 (12.a4 Qb6+/–) 12...Qb6 (12...a4 13.Qc2 Qe8=+) 13.0–0?? (Better is 13.a4+/–) 13...a4–/+ 14.Qd1 Bb5 15.Bb5 Qb5 16.Bc3 Qd7 17.Ne5 Qe8 18.Rb1 b5 19.Bb4 Bb4 20.Rb4 Ne4 21.Ne4 de4 22.Qb1 f6 23.Ng4 Ra5 24.Rc1 h5 25.h3 hg4–+ 26.hg4 f5 27.gf5 ef