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1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4

5.c4

5...Bb4 6.a3 Be7 7.Qb3 b6 8.Nd4 Bg6 9.cd5 ed5 10.Bb5 Nbd7 11.Nc6 Qc8 12.Ne7 Ke7 13.Bc6 Rb8 14.Bd5 Nd5 15.Qd5 Bb1 16.Qg5 Nf6 17.Qg7 Qf5 18.Bf6 Qf6 19.Qf6 Kf6 20.Rb1 Rbd8 21.d4 Rhg8 22.g3 Rg5 23.Ke2 Ra5 24.Rhc1 Rd7 25.Rc6 Kg7 26.Rb3 Ra4 27.f3 f6 28.Rbc3 Kg6 29.Rc7 Rc7 30.Rc7 Ra3 31.d5 Ra5 32.d6 Rd5 33.d7 a5 34.e4 Rd6 35.f4 a4 36.g4 b5 37.Rb7 a3 38.Rb5 Rd7 39.Ra5 Rb7 40.Ra3 Rb2 41.Kf3 Rh2 42.Kg3 Re2 43.Kf3 Rc2 44.Ra6 Rc3 45.Ke2 Kg7 46.Rd6 Ra3 47.Rd7 Kg6 48.f5 Kh6 49.Rd3 Rd3 50.Kd3 Kg5 51.Ke3 Kg4 0–1. marus2 – INSPECTOR, internet, 2001.

5...dc4 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 dc4).

5...c5

6.Qa4 Nc6 7.b5 Nb4 8.Na3 Bd3 9.Ne5 dc4 10.b6 Nd7 11.Nd7 (11.ba7 Be7 12.Rc1+=) 11...Qd7–/+ 12.Nb5? (better is 12.Qd7 Kd7 13.Bc3 ab6 14.Bb4 Bf1 15.Rf1–/+) 12...Kd8 13.ba7 Nc2 14.Kd1 Na1 15.Qa5 Kc8 16.Bd3 cd3 17.Be5 f6 18.Nc7?? (18.Ba1 Qc6 19.f3–+) 18...b6 (better is 18...Ra7! 19.Qa7 fe5–+) 19.Qa6+– Kd8 20.Na8 (20.Na8 Qc6 21.Nb6 (21.Ba1?! Qa8 22.Qb6 Kd7+/–) 21...fe5 22.a8Q Qa8 23.Na8+–) 1–0. Baudon,Sebastien (1965) – Bensaid,Alexandre (1840), Bois Colombes op 2nd, 2005.

6.bc5 Bc5 7.Nd4 Bg6 8.Be2 0–0 9.0–0 Nc6 10.cd5 (10.Nc6 bc6 11.Qa4 Bd6=) 10...ed5 (better is 10...Bd4!? 11.ed4 Nd5–/+) 11.Nf3 d4 12.Bc4 Na5 13.Bb3 d3 14.Nc3 Rc8 15.Rc1 Nb3 (15...Bh5 16.Re1+=) 16.Qb3= Qb6 17.Na4 Qb3 18.ab3 Bb4 (18...Be7 19.Nc3+=) 19.Bf6= gf6 20.h3 (20.Rc8 Rc8 21.Nc3 Kg7=) 20...Be4 21.Nd4 (21.Nc3 Bf3 22.gf3 Kh8=) 21...Bd2–/+ 22.Rcd1 Bb4 23.f3 Bg6 24.e4 (24.Nb2 d2 25.Nc4–/+) 24...b5 (24...d2 25.Kf2 Rfd8–+) 25.Nb2?? (better is 25.Nb5 a6 26.Nd4=) 25...Bc3 26.Rd3 Bb2 27.Nb5 a6 28.Nd6 Rcd8 (28...Rfd8 29.Kh1–+) 29.Rfd1–/+ Be5 30.Nc4 Rd3 31.Rd3 Rb8 32.Rd5 (better is 32.g4!?–/+) 32...Rb3–+ 33.Ne5 fe5 34.Re5 Rb5 35.Re7 a5 36.Kf2 f6 37.g4 Bf7 38.Ra7 Kf8 39.h4 Bb3 40.h5 a4 (40...Bd1 41.Rh7 Rb3–+) 41.Ke3? (better is 41.Rh7 a3 42.Ra7–/+) 41...Bd1–+ 42.h6 Kg8?? (better is 42...Rb3 43.Kd2 A) worse is 43...Rf3 44.Kd1 a3 45.Kc2+= (45.Rh7?? a2 46.Rh8 Kf7–+); B) 43...Bf3 44.Ra4 Kf7–+ (44...Bg4?! 45.Ra8 Kf7 46.Ra7 Ke6 47.Rh7–+)) 43.Rg7–/+ Kh8 0–1. ferminkatcho (1750) – sikkuj (1895), kurnik, 2014.

6.cd5 Qd5 7.Bf6 gf6 8.Nc3 Qd8 9.bc5 Bc5 10.e4 Bg6 11.Rb1 0–0 12.Rb7 Bb6 13.Qa4 Qc8 14.Rb6 ab6 15.Qa8 Qc5 16.Be2 Nc6 17.Qa4 Rd8 18.h4 h5 19.g3 Nd4 20.Nd4 Rd4 21.Qa8 Kg7 22.f4 Qb4 23.f5 ef5 24.ef5 Bf5 25.Bh5 Qe7 26.Be2 Re4 27.Rf1 Re2 28.Ne2 Bd3 29.Qf3 1–0. marus1 – TT4, internet, 2001.

5.c4 a5

6.ba5 Ra5!? 7.Nd4 Bg6 =.

6.ba5 Bb4 7.Nd4 Bg6? (better is 7...Bb1!? 8.Qa4 Nbd7 9.Qb4 c5 10.Ne6 fe6 (10...cb4? 11.Nd8 Kd8 12.Rb1+–) 11.Bf6 Qf6 12.Qb1 Ra5 13.cd5 ed5+=) 8.Qa4+/– Nbd7 9.Qb4 c5 10.Qb7 (better is 10.Qb3!? cd4 11.cd5+/–) 10...cd4 11.Qb4 Rb8 12.Qa3 Ne5? (better is 12...Qe7!? 13.Qe7 Ke7 14.Ba3 Kd8=) 13.Bd4+/– Nc4 14.Bc4 dc4 15.Nc3 Bd3 16.a6 Ra8 17.a7 Qe7 18.Qa4 Qd7 19.Qd7 Kd7 20.Na4 Nd5 21.e4 Nb4 22.Bg7 Nc2 (22...Rhd8 23.Nb6 Kc6 24.Na8 Nc2 25.Kd1 Na1 26.Nc7 Kc7 27.Ba1 Be4 28.f3+/–) 23.Kd1 Na1 24.Ba1 Kc6 (24...Rhg8!? 25.Nb6 Kd6 26.e5 Kc5 27.Na8 Ra8+/–) 25.Bh8+– Rh8 26.Nb2 Ra8 27.Nd3 cd3 28.Kc1 Ra7 29.Kb2 Kc5 30.f3 Kd4 31.Rc1 Rb7 32.Ka1 f5 33.Rc6 fe4 34.Re6+– ef3 35.gf3 Kd5 36.Re3 Kd4 37.Re4 Kd5 38.a4 Kc5 39.Ka2 Kd5 40.Rh4 Rf7 41.Kb3 (41...Rf3 42.Rh7+–) 1–0. Coltharp,Cameron – St_Jean,Benoit, email 4AMM–06, 1997.

6.ba5 Nc6 7.a6+= Nb4 (7...Ra6 8.cd5 Rb6 9.dc6 Rb2 10.cb7+/–) 8.Nd4 (8.ab7?! Nc2 9.Qc2 Bc2 10.ba8R Qa8 11.Bf6 gf6 12.cd5 Bb1 13.Rb1 Qa2=) 8...Bb1 (better is 8...Na6 9.Nf5 ef5+/–) 9.ab7+– (9.Qb1?! Na6 (< 9...ba6 10.a3+/–) 10.Be2 Bd6=) 9...Ra2 10.Ra2 (better is 10.Qb1 Ra1 11.Qa1+–) 10...Ba2= 11.Qa4 Nd7 12.Bc3 Qb8 13.Bb4 ½–½. Mielke,Sven (1925) – Mueller,Winus (1805), Wichern op 5th, 1999.

6.b5 c5

7.Be2 Nbd7 8.0–0 Nb6 9.Ne5 (9.d3 dc4 10.dc4 Be7=) 9...Bd6 10.f4 h5 (10...dc4 11.Nc4 Nc4 12.Bc4=) 11.cd5 ed5 12.a4 Qe7 13.Na3 h4 14.Nc2 Ne4 15.Ne1 Be5 16.fe5 Qg5 17.Rf4 Nc4? (better is 17...Qg6+=) 18.Bc4+– dc4 19.Qf3 Rh5? (better is 19...Nd2 20.Qf2 c3 21.Bc3 Ne4 22.Rf5 Qg4+=) 20.Re4+– Be4 21.Qe4 Qe7 22.Qc4 h3 23.g3 Rd8 24.d4 cd4 25.ed4 Rf5 26.Nd3 Qg5 27.Re1?? (better is 27.Qc2+–) 27…Qd2–+ (28.Nf4 Qe1 (28...Qb2?! 29.e6 Qd4 30.Qd4 Rd4 31.ef7 Kf7 32.Ra1–+) 29.Qf1 Qe4–+) 0–1. Hebels,Albert – Lambooy,GJ, corr NL Mkl, 1984.

7.Be2 Nbd7 8.Nh4 Bb1 9.Rb1 dc4 10.Bc4 Bd6 11.Nf3 0–0 12.Qc2 e5 (12...Nb6 13.e4 Bf4 14.Be2=) 13.d3 Qe7 14.0–0 Nb6 15.e4 Nh5 (15...Rfd8 16.Nh4=) 16.g3 (16.Bc1 Nf6+=) 16...Qf6 (16...Rfd8 17.Nh4=) 17.Qe2 g6 (17...Rfd8 18.Rfd1=) 18.Nh4 (18.Nd2 Nc4 19.Nc4 Qe6+=) 18...Nc4 (18...Nf4 19.Qe3 Ne6 20.f4 ef4 21.Bf6 fe3 22.e5=) 19.dc4 Nf4 (19...Qe6 20.Rfd1=) 20.gf4 Qh4 21.Rbd1 Rad8 22.fe5 Qg5 23.Kh1 Be5 24.Rd5 Rd5 25.cd5 Bb2 26.Qb2 Qf4 27.f3 Re8 (27...Qe3 28.Qc1 Qd3 29.Qb1=) 28.Qc1 Qd6 29.Qc4 Qf4 (29...f5 30.ef5 gf5 31.Rg1 Kf8 32.Qc3=) 30.Qc5 (30.b6 Qd6+=) 30...Re4= 31.fe4 (31.Qc8!? Kg7 32.Qc3 (32.Qb7 Re2 33.Qb8 Qb8 34.f4 Qe8 35.Re1 Qe4 36.Kg1 Qg2) 32...Kh6 33.Qc1 (33.Qa5 Re2 34.Qc7 Rh2 35.Kg1 Qc7 36.Rb1 Qg3 37.Kf1 Qf2) 33...Qc1 34.Rc1=) 31...Qf1–/+ 32.Qg1 Qb5 33.Qd4 (33.Qd1 Qc4 34.d6 Qe4 (34...Qa2?? 35.d7 h6 36.d8Q Kh7 37.Qf6+–) 35.Kg1 Qe3 36.Kh1 Qb6–/+) 33...Qf1 (33...Qb1 34.Kg2 Qa2 35.Kg3 Qb3 36.Kg2–/+) 34.Qg1 Qg1 0–1. Melich,Jindrich (2075) – Martinez Rodriguez,Pablo (2275), X Calvia ESP, 2013.

6.b5 Nbd7

7.a4 Bb4 8.Be2 dc4 9.Bc4 Nc5 10.0–0 Bd3 11.Bd3 Nd3 12.Qc2 (12.Bd4 c5 13.bc6 bc6 14.Qc2+/–) 12...0–0 (12...Nb2 13.Qb2 Rc8 14.d4=) 13.Ne5 (better is 13.Bd4!? e5 14.Ne5 Ne5 15.Be5+/–) 13...Nb2= 14.Qb2 Nd5 15.d4 Qd6 16.Nd2? (better is 16.Qc2!?=) 16...Bc3–/+ 17.Qa3? (better is 17.Qc2 Ba1 18.Ra1–/+) 17...Qa3 18.Ra3 Bd2 19.Rd1 Bb4 20.Raa1 Nb6 21.Rdc1 Bd6 22.Nc4 Nc4 23.Rc4 e5 24.g3 ed4 25.ed4 Rfe8 26.Rc2 Re4 27.Rd1 Rd8 28.Rcd2 f5 29.Kg2 Kf7 30.f3 Re3 31.Ra2 Bc5 32.Rad2 Bb6 33.Kf2 Ra3 (34.h3 Rd5–+) 0–1. Hasler,Ulrich – Joos,M, OV, 1991.

7.Nc3 Nb6 8.cd5 ed5 9.Nd4 (9.Be2 Nc4 10.Bc4 dc4=) 9...Bd7 (9...Bg6 10.Be2=) 10.d3 (10.Bd3 a4=) 10...Bd6 (10...Bc5 11.Nf3=+) 11.Be2 0–0 12.0–0 c5 (12...a4 13.Rc1=) 13.bc6 bc6 14.Rc1 (14.Qc2 Rb8=) 14...Re8 15.Bf3 (15.Qc2 Rb8=) 15...Qe7 (15...a4 16.Qc2=+) 16.Re1 (16.Qc2 a4=) 16...h5 (better is 16...a4=+) 17.e4?? (better is 17.Nb1 c5 18.Nb3=) 17...Qe5–+ 18.Nce2? (18.Qc2 a4–/+ (18...Qd4? 19.Nd5 Qa4 20.Nb6 Qc2 21.Rc2+–; 18...Qh2?! 19.Kf1–+)) 18...c5 (better is 18...Qh2 19.Kf1 c5–+) 19.g3–/+ Na4 (19...Nc8–/+) 20.Ba1? (better is 20.Nc6!? Qb2 21.Qa4 de4 22.de4–/+) 20...cd4–+ 21.Nd4 (21.Bd4 Qg5–+) 21...Qg5 22.Nc6 (22.Bg2 de4 23.de4 Bb4–+) 22...Bb4 (22...Ba3 23.Rc2–+) 23.Nb4 ab4 (Black gets in control) 24.h4 (24.e5 Qf5–+) 24...Qg6 25.e5 (25.Qd2 de4 26.de4 Nc3 27.Bc3 bc3 28.Rc3 Bg4–+) 25...Qf5 26.Bg2 Ng4 27.f4 (27.Qf3 Qf3 28.Bf3 Be6–+) 27...Be6 28.Re2 (28.Rc6 Nc3 29.Bc3 bc3–+) 28...Rec8 29.Rc8 Rc8 30.Re1 Nc3 31.Qd2 Ra8 (31...Na2 32.Rb1 b3 33.Bf1–+) 32.Bc3 bc3 33.Qc3 Ra2 34.Qb3 (34.d4 Rc2 35.Qb3 Rd2–+) 34...Rg2 (34...Rd2 35.Bd5 Rd3 36.Qb8 Kh7 37.Bg2 Rg3 38.Qa8–+) 35.Kg2 d4 (36.Qb8 Kh7–+) 0–1. Grund,Karl – van der Zvan, corr ICCF EU–M–GT–98, 1975.

7.Nc3 Nc5 8.cd5 (8.d4 Nce4 9.c5 b6=) 8...ed5 9.d3 Be7 (9...a4 10.a3=) 10.Be2 0–0 11.0–0 Qd7 12.Rc1 c6 (12...Rfe8 13.Nd4=) 13.d4+= Ne6 14.Ne5 Qd6 15.bc6 bc6 16.Na4 c5? (better is 16...Rac8!?+=) 17.dc5+– Qc7 18.Nf3 (18.g4 Bg6 19.Ng6 fg6 20.Bf6 Bf6 21.Qd5+–) 18...Rfd8? (18...Rad8 19.Nd4 Bg6 20.Nb5+/–) 19.Be5 (better is 19.Nb6!? Ra7 20.Bf6 gf6 21.Nd5 Qc6 22.Ne7 Re7+–) 19...Qc6 20.Qb3 Ne4 21.Bb5 N6c5 (21...Qb7 22.c6 Qa7 23.c7+–) 22.Bc6 1–0. Betzelt – Oakes,Barrie, corr ICCF TT–4–90 SF, 1995.

7.Nc3 Bd6 8.Nd4 Bg6 9.cd5 ed5 10.Be2 =.

7.d4 Bb1 8.Qb1 Bb4 9.Kd1 Ne4 (9...dc4 10.a3 Bd6 11.Bc4=) 10.Qc2= a4 11.a3 Ba5 12.Bd3 f5 13.c5 g5 (13...0–0 14.Rf1=) 14.g3 (14.Ne1 c6+=) 14...h5 (14...g4 15.Nh4+=) 15.h4 g4 16.Ne5 (16.Ng5 Rh6+=) 16...Ne5= 17.de5 0–0 18.Ke2 Qe7 19.Rhc1 (19.c6 Nc5 20.cb7 Rab8=) 19…Bd2 (19...c6 20.Bd4=) ½–½. Ree,Hans – Lee,Peter N, WchTJ U26 prel, 1965.

7.cd5 ed5

8.Nd4 Bg6 9.Be2 a4 =.

8.Nd4 Bg6 9.Be2 Ne5 10.0–0 Nd3 11.Bc3 (11.Qc2 Nf4 12.d3 Ne2 13.Ne2 Bd6=) 11...Bd6 (11...Qd7 12.f4 Be4 13.Nf3=) 12.Nb3 (12.f4 Be4=) 12...c5 (better is 12...0–0!?+=) 13.bc6= bc6 14.f4 Be4 15.Nc1 Nc1 16.Qc1 0–0 17.Bf6 (better is 17.Bd4!?=) 17...Qf6–/+ (17...gf6?! 18.Nc3 Bf5 19.Na4=) 18.Nc3 Bf5 19.Na4 Rac8 20.Nc5 Qe7 (20...Rb8 21.Bd3–/+) 21.Bd3+= Bd3 22.Nd3 c5 23.Rb1 c4 24.Ne5 Be5 25.fe5 Qe5 26.Rb5 a4 27.Qc2 c3 28.Qd3 (28.Rf4 f6+=) 28...Rfd8–/+ Black plans d4 29.Rb7? (29.Rc1 cd2 30.Qd2 Rc1 31.Qc1 g6–/+) 29...cd2 (better is 29...d4 30.Rb5 (30.Rff7?? c2 31.Rg7 Qg7 32.Rg7 Kg7–+) 30...Qe8 31.e4–+) 30.Rd1?? (better is 30.Qd2 Rc7 31.Rc7 Qc7 32.Rc1–/+) 30...Qe4 (30...d4 31.e4 f5 32.Qd2 fe4 33.Qf2–+) 31.Qf1 (31.Qe4 de4 32.Kf1 Rc2–+) 31...f6 32.Qb5?? (32.Rb2 Rc2 33.Rc2 Qc2 34.Qe2 Qa2 35.Rd2 Qb1 36.Rd1–+) 32...d4 33.Qb4 Qg4 (33...Qe3 34.Kh1 Rc1 35.Qc4 Rc4 36.h3 Rc1 37.Rb1 Qe1 38.Kh2 Rb1 39.Rb1 Qb1 40.Kg3 Qb8 41.Kf3 d1Q 42.Kf2 Qf4) 34.Qa4 (34.Qd2 Qe4 35.ed4 Qb7–+) 34...Qe2 35.Qb3 (35.Rbb1 Rb8 36.Ra1 de3 37.Qf4–+) 35…Kh8 (35...Kh8 36.h4 Rc1–+) 0–1. Katalymov,Boris – Kholmov,Ratmir, Rostov, 1960.

8.Nd4 Bg6 9.f4 Nc5=+ 10.d3 Bd6 11.Be2= Qe7 12.Qd2 Ng4 13.Bc1 Nd3 14.Bd3= Bf4 (The pressure on the backward pawn e3 grows) 15.Qe2 Bd3 16.Qd3 Qh4–/+ 17.Kd2 Nf2 18.Qf5 Be3 19.Ke3 Nh1 20.Qe5 Kd8 21.Qd5 Kc8 22.Kd3 Nf2 23.Kc4 Ne4 24.g3 Qe7= 25.Ba3 Nd6 26.Bd6+= Qd6 27.Qd6 cd6 28.Kd5 Kd7 29.Nd2 Rac8 30.Ne4+– b6 31.Nc6 Rce8 32.Nd6 Re2 33.Nf7 Rd2 34.Nd4 Rf8 35.Ne5 Kc8 36.Nec6 Rh2 37.Re1 Rh5 38.Kd6 Rf6 39.Ne6 Kb7 40.a4+– Rh2 41.Rc1 (41...Rg2 42.Ncd4+–) 1–0. Labahn,Thomas – Sielaff,Rudolf, GER–ch qgB15 corr939, 1993.

8.Be2 Bd6 =.

7.cd5 Nd5

8.a3 Nc5 9.d4= Qf6 10.Nbd2 Nd3 (10...Be7!?=) 11.Bd3+= Bd3 12.Qb3 Qg6 13.Nh4 Qg4 14.Qd3 Qh4 15.e4 Nf4 16.Qf1 Qh6 (16...Qg4 17.g3 Nh3 18.Rc1+/–) 17.h4 Be7 18.g3 Nh5 19.Rc1 Rc8 20.Nc4 (20.Qe2 Qg6+=) 20...0–0 (20...Nf6 21.Qg2+=) 21.Qe2 f5 22.ef5 Rf5 23.Ne3 Rff8 24.Ng4 Qg6 25.Ne5 Qe8 26.0–0 Rf5 (26...Kh8 27.b6 Bd6 28.bc7 Rc7 29.Rc7 Bc7 30.Rc1+/–) 27.Rfe1 Bf8 28.a4 Bb4 29.Bc3 Nf6 30.Bb4 ab4 31.a5 Nd7 32.Qc4 Ne5 33.Re5 Re5 34.de5 c5 35.Rd1 Rc7 (35...b3 36.Rd3 Ra8 37.Rb3 Ra5 38.Qc5+/–) 36.Rd6+– Kf7 (36...g6+–) 37.b6 Rc8? (37...Re7+–) 38.Qe4 b3 (38...Qe7 39.Qh7 Rd8 40.Qd3+–) 39.Qb7 Kg8 40.Qe4 Qb5 41.b7 Rb8 42.Kh2 Rf8 (42...b2 43.Rb6 b1Q 44.Qb1 Qa5+–) 43.f4 Qa5 44.Qc4 Qa2 45.Kh3 Qb1 46.Qe6 Kh8 47.Qe7 Qf5 48.Kh2 h5 49.Rd2 (49.Rf6 Qc2 50.Kh3 Rb8 51.Rf8 Kh7 52.Rb8 Qf5 53.Kg2 Qc2 54.Kf3 Qd3 55.Kf2 Qd2 56.Kf1 Qd1 57.Kf2 Qd2 58.Kg1 Qd1 59.Kh2 Qc2 60.Kh1 Qe4 61.Kg1 Qe1 62.Kg2 Qe2 63.Kh3 Qf1 64.Kh2 Qe2 65.Kh3 Qf1 66.Kh2 Qe2 67.Kh3=) 49...c4 50.e6 (better is 50.Qc7 Kh7 51.Qc4 Rb8 52.Qb3 Kh8+–) 50...Kh7 (50...Rb8 51.Qc7 Rb7 52.Qb7 Qe6 53.Rd8 Kh7+–) 51.Qd6 c3 (51...Re8 52.e7 Qf7+–) 52.e7 Re8 53.b8Q Rb8 54.Qb8 cd2 55.e8Q d1Q 56.Qh8 Kg6 57.Qbe8 Qf7 58.Qe4 Qf5 59.Qc6 Qf6 60.f5! Kf5 (60...Kf5 61.Qhc8 Mate attack) 61.Qhc8 Kg6 (61...Qd7 62.Q6d7 Kg6 63.Qd3 Kf7 64.Qd5 Kg6 65.Qe8 Kh7 66.Qdg8 Kh6 67.Qh8) 62.Qe4 1–0. forsetinn (2420) – housemd (1990), gameknot.com, 2015.

8.a3 N5f6 =.

8.a3 N7f6 9.d3 Bg4 10.e4 Bf3 11.Qf3 =.

8.Nc3 Nb4 9.e4 Nc5 10.ef5 Ncd3 (10...Nbd3 11.Bd3 Nd3 12.Kf1 Nb2 13.Qe2+=) 11.Bd3+= Nd3 12.Kf1 Nb2 13.Qe2 Bb4 (13...Qd3 14.fe6 fe6 15.Re1+=) 14.h4 (14.fe6 Nd3 15.ef7 Kf7+/–) 14...Nd3 (better is 14...0–0 15.fe6 Re8=) 15.g3 (better is 15.fe6!? f5 16.a3+=) 15...0–0 16.fe6 fe6 17.Rh2? (better is 17.Qe6 Kh8 18.Kg2=) 17...Bc3–+ 18.dc3 Qd5 19.Nd4? (better is 19.Kg2–+) 19…Rf2!! (20.Qf2 Nf2 21.Kf2 Qc5–+) 0–1. De Visser,Arno – Ingerslev, corr ICCF EU–M–558, 1981.

8.Nc3 Nc5 9.Nd4 Nc3 10.Bc3 Nd3 11.Bd3 Bd3 +=.

8.Nd4 Bg6+= 9.Be2 (9.Nc3 Nb4 10.a3 Nd3 11.Bd3 Bd3+=) 9...Nb4–/+ 10.Na3 (10.Ba3 e5 11.Bb4 ab4–/+ (worse is 11...ed4 12.Bf8 Nf8 13.0–0=)) 10...Nd3 11.Bd3 Bd3 12.Rc1 Nc5 (12...e5 13.Rc3 Nc5 14.Qh5–+) 13.Rc5 Bc5 Black gets strong initiative 14.Ne6 fe6 15.Qh5 A double attack 15...g6 16.Qc5 Rf8 17.h4 Qd7 18.f4 (18.h5 Rf5 19.Be5 gh5–/+) 18...b6 19.Qc1 Qd5 20.Qc6 (20.Rh2 A) 20...Qa2? 21.Qc6 Kd8 22.Bg7+– (22.Qa8?! Ke7 23.Qc6 Qb2 24.Qc7 Kf6 25.Qc3 Qc3 26.dc3 Kf5=); B) 20...Bb5?! 21.Qc7 Bd3 22.Qb6–/+; C) 20...0–0–0 21.Bg7 Rf7–+) 20...Qc6–+ 21.bc6 b5 22.Kd1 Ra6 23.Nc2 Bc2 (23...Be4 24.Nd4 Bg2 25.Rh2 Bc6 26.h5–+) 24.Kc2 Rc6 25.Kb1 h5 26.Be5 Ke7 27.Rg1 (27.d3 b4–/+) 27...Rd8–+ 28.d4 Rc4 29.g4 hg4 30.Rg4 Kf7 31.h5 gh5 32.Rg7 Ke8 33.Rh7 c5 34.Rh5 Rc8 35.Rh8 Kd7 36.Rh7 Kc6 37.dc5 Kc5 38.Rd7 (38.Rh5 a4–+) 38...Kb4 (38...b4 39.Rg7–+) 39.Rd1 (39.Rd2 R8c6–+) 39...Rc2 40.Bb2 (40.Bd6 Ka4–+) 40...Rg2 (40...Re2 41.Be5–+) 41.a3 Ka4 42.e4 (42.Bc1 Rc4–+) 42...Rcc2 (42...Rc4 43.Re1–+) 43.Bc1 Rce2 44.e5 Rgf2 45.Rd6 (45.Rd4 b4 46.ab4 ab4–+) 45...Re1 46.Re6 Kb3 47.Rc6 Rb2 48.Ka1 Rc2 (48...Rc2 49.Rc2 Kc2 50.Ka2 Kc1 51.Kb3 Re3 52.Ka2 b4 53.ab4 ab4 54.f5 Ra3#) 0–1. Stoliar,Sergei Yefimovich – Ranby,Hans, corr ICCF–Cup8/9 V096, 1990.

5.c4 Bb4

6.a3 Ba5 7.Nc3 (7.Nd4 Be4–/+) 7...Bc3 (7...0–0 8.Qb3 b6 9.cd5 ed5 10.Be2–/+) 8.Bc3 (better is 8.dc3 Be4 9.cd5 ed5 10.c4+=) 8...Na6 (8...0–0!?–/+) 9.Qb3 (9.cd5 Qd5 10.Qa4 c6 11.Ba6 ba6=) 9...dc4 (9...0–0 10.Qb2=) 10.Qb7 Nc5 11.Qc6 (11.Qb5 Ncd7+=) 11...Nfd7 12.Bg7 Rg8 (12...Be4 13.Qb5 Rg8 14.Bc3=) 13.Be5= Be4 (13...Rc8 A) 14.Bc4? Be4 (14...Rg2 15.Bb5–/+) 15.Qb5 Rg2–+; B) 14.Qb5 Bd3 15.Bf4+=) 14.Qc7 Rb8 (14...Nd3 15.Bd3 cd3 16.Qd8 Rd8 17.Bg3=) 15.Qd8 (15.Qa7? Rb7 16.Qb7 Bb7–+) 15...Rd8 16.Bg3 Nd3 (16...Bf3 17.gf3 Nd3 18.Bd3 cd3 19.Rc1+=) 17.Bd3+= Bd3 18.Nd4 (18.Rc1 f6=) 18...Rc8 (18...a6 19.f3=) 19.Nb5+= a6? (better is 19...Rc5 20.a4 a6 21.Nc7 Rc7 22.Bc7 Rg2=) 20.Nd6+– (20.Nd6 Ke7 21.Nc8 Rc8 22.Rc1+/–) 1–0. Stevenson,Michael D – Cotton,Logan R, NZCCA HT corr New Zealand, 1996.

6.Nc3 0–0 7.Nd4 –/+.

6.Nc3 Ke7 7.d4 (7.Nd4 Be4=+) 7...Bg4 (7...Ne4 8.Qb3 Nc6 9.Ba3–/+) 8.Be2 (8.a3 Bd6=+) 8...dc4–/+ 9.0–0 Bc3 (9...Nd5 10.Rc1–/+) 10.Bc3=+ b5 (10...Qd5 11.Bb4 Ke8 12.Rc1=+) 11.Qe1 (better is 11.Rc1=+) 11...Nc6+/– 12.Ne5 Ne5 13.de5 Ne4 (13...Be2 14.ef6 gf6 15.Qe2+–) 14.Bg4 c6 (14...Qd3 15.Rc1+–) 15.Rd1 Qb6 16.f4 (16.Bf3 Nc3 17.Qc3 Rhd8+–) 16...h6 (16...Nc3 17.Qc3 b4 18.Qc4 Qe3 19.Kh1+–) 17.Bb4 c5 18.Bf3 cb4 19.Be4 Rac8 20.Qb4 Ke8 21.Qd2 Qc7 22.Qe2 Rd8 23.Rd8 Kd8 24.Rd1 Kc8 25.Rd6 Qa5 26.f5 ef5 27.Bf5 Kb7 28.Rd7 Ka6 29.Qd1 Qa3 30.Qd6 Qd6 31.ed6 g6 32.Be4 f5 33.Bc2 Kb6 34.Rg7 Rd8 35.Rg6 Kc5 36.Rh6 Rd6 37.Rd6 Kd6 38.Bf5 b4 39.Kf2 Ke5 40.Bc2 Kf6 41.e4 c3 42.Ke3 Ke5 43.h4 a6 44.g4 a5 45.g5 Ke6 46.h5 Kf7 47.h6 Kf8 48.g6 a4 49.Ba4 Ke7 50.h7 c2 51.Bc2 Kf6 52.h8Q Kg6 53.e5 (53…Kf7 54.Qf6 Kg8 55.Bb3 Kh7 56.Qe7 Kg6 57.Bc2 Kh5 58.Kf4 b3 59.Qg5#) 1–0. SuperForte 5 Mhz – REXChess 80286 12Hz, 1994.

6.Nd4 Bb1 7.Rb1 0–0 8.Be2 c5 9.Nf3 Nc6 10.0–0 d4 11.d3 (11.ed4 cd4 12.Bd4 Nd4 13.Rb4 b6+=) 11...de3 (11...e5 12.a3 Ba5 13.Ng5–/+) 12.fe3+= a6 13.Kh1 Ng4 14.Qc1 Qc7 15.d4 cd4 16.ed4 Bd6 17.h3 (17.Qg5!? f5 18.Qh4+=) 17...Nf6 18.Bd3 (18.Ng5 Rae8–/+) 18...Bf4 (18...Nb4 19.Qd2 Rfd8 20.Kg1–/+) 19.Qd1 Nb4 20.Ne5 Nd3 21.Nd3 Bd6 22.c5 Be7 23.Ne5 Nd5 24.Qf3 f6 25.Nd3 b6 (25...Qc6 26.Rbe1+=) 26.Rbc1 (26.Qe4 Qd7+=) 26...Qb7 (26...bc5 27.Ba3–/+) 27.c6 (27.Nf4!? bc5 28.Ne6+/–) 27...Qc7 28.Rfe1 Qd6 29.Qe4 Kf7?? (29...Nc7 30.Nf4 Kf7 31.d5+=) 30.Qh7 (better is 30.Ba3! Qa3 31.Qe6 Kg6 32.Ne5 Kh6 33.Ng4 Kg6 34.Qd5+/–) 30...Rh8= 31.Qe4 Rac8?? (31...Rhc8 32.Qf3=) 32.Rc2?? (better is 32.Ba3! Rh4 33.Qh4 (33.Bd6?! Re4 34.Re4 Bd6+–) 33...Qa3 34.Qh5 Kg8 35.Re6+–) 32...Rc6= 33.Rf2 (better is 33.Ba3! Qd7 34.Qf3=) 33...Ke8 34.Qg6 Kd7 0–1. ferminkatcho (1645) – cheparin2 (1675), kurnik, 2013.

6.Nd4 Qe7 7.Nf5 ef5 8.Qf3 0–0 9.cd5 Nbd7 10.Qf5 Rfe8 11.Bb5 Ne5? (better is 11...Red8+/–) 12.Be8+– Re8 13.Qe5 Qe5 14.Be5 Re5 15.Nc3 Ne4? (better is 15...Nd5 16.Rb1 Bc3 17.dc3 b6+–) 16.Ne4 Re4 17.Ke2 Re5 (17...a5 18.Rhc1 Bd6 19.d4+–) 18.Rab1 (18.Rab1 a5 19.a3 Ba3 20.Rb7+–) 1–0. ferminkatcho (1710) – palefajke (1710), kurnik, 2014.

6.Nd4 Be7 7.Nf5 ef5 8.Qf3 g6 9.cd5 0–0 10.Nc3 c6 11.Bc4 a6 12.a4 (12.Rc1+/–) 12...b5? (better is 12...Nbd7!? 13.dc6 Ne5=) 13.ab5+– cb5 14.Nb5?? (14.Bb5 Bb4+/–) 14...Ne4 (14...ab5 15.Ra8 bc4 16.Bf6 Bf6 17.0–0+=) 15.d6?? (15.Nc3 Bf6+/–) 15...Bf6?? (better is 15...ab5 16.Ra8 Qd6 17.Bf7 Kf7–/+) 16.Nc3+/– Qd6?? (16...Qb6 17.Ra2 Bc3 18.dc3 Qc6+=) 17.Ne4+– fe4 18.Qf6 Qf6 19.Bf6 Nd7 20.Bd4 Rfc8 (20...Rfd8+–) 21.Ba6 (better is 21.Bd5 Rab8 22.Ke2+–) 21...Rc6 22.Be2 (better is 22.f3!? ef3 23.gf3 Rca6 24.Ra6 Ra6 25.Ke2+–) 22...Ra1+= 23.Ba1 Rc1 24.Bd1 Ra1 25.0–0 (25.f3 Nc5+=) 25...Ne5 (25...Ra2 26.f3=) 26.f3 (26.Bc2 Ra2 27.Be4 Rd2+=) 26...Nc4 27.fe4 (27.Be2!? Rf1 28.Kf1 Nd2 29.Ke1 ef3 A) 30.Kd2?? fg2 (30...fe2?! 31.Ke2 h5 32.Kd3=) 31.h3 g1Q–+; B) 30.gf3=) 27...Nd2+= 28.Re1 Ra5 (28...h5 29.e5+=) 29.Bf3= Re5 30.Rd1 Ne4 31.Rd7 Nc5 32.Rd5 Rd5 33.Bd5 Kg7 34.Kf2 Kf6 35.g3 Ke5 (better is 35...Ke7!?=) 36.Bf7+/– Ne4 37.Ke2 Nc3 38.Kf3 Ne4 39.Bg8 Kf5 40.h4 h6? (40...Nf6 41.g4! Ke5 42.Bf7+–) 41.Bd5 (better is 41.g4!? Ke5 42.Bh7+–) 41...Nf6 42.Bc6 Ke5 0–1. ferminkatcho (1800) – kwadwo (1795), kurnik, 2014.

6.Nd4 Bg6 7.Qa4 Nc6 8.Nc6 bc6 9.Qb4 Rb8 10.Qa3 Qd6 (10...e5 11.d3 Qd6 12.Qc3 dc4 13.dc4+–) 11.Nc3 (11.c5 Qe7+–) 11...0–0 12.Qd6 cd6 13.Ba3 Rfd8 14.Be2 (14.c5 dc5 15.Bc5 Nd7+–) 14...dc4 15.Bc4 d5 16.Be2 d4 17.Na4 de3 18.de3 Bc2 19.Nc5 Rd5? (19...e5 20.Rc1 Rb1 21.0–0 Rc1 22.Rc1+– (worse is 22.Bc1 Nd7 23.Nb7 Rb8+–)) 20.0–0 (better is 20.Bf3!? Rg5+–) 20...Rd2 21.Bf3 Nd5? (21...Rb6 22.Nb3! Bb3 23.ab3 Rb3 24.Bc5+–) 22.Bd5 (better is 22.Bc1 Rd3 23.Nd3 Bd3 24.Rd1+–) 22...cd5 23.Rfe1 h6 24.Bc1 Rd1 25.Rd1 Bd1 26.Kf1 Bg4 27.f3 Bf5 28.e4 de4 29.fe4 Bg6 30.Kf2 Rb4 31.Be3 a5 32.Nb3 (better is 32.a3!? Rb2 33.Kf3+–) 32...a4+/– 33.Nd4 (33.Nc5 Be4 34.Bd2 Rc4+/–) 33...Be4 34.g4 (34.Rd1!?+/–) 34...Rb2= 35.Kg3 g5 36.h4 a3?? (better is 36...Rg2 37.Kh3 f5 38.hg5 hg5 39.Bg5 fg4 40.Kh4 e5=) 37.hg5+– hg5 38.Bg5 Bd5 39.Nb3 Bb3 40.ab3 Rb3 41.Kf4 Rb4 42.Kf3 Rb3 43.Be3 Kg7 44.g5 Kg6 45.Ke4 Rb4 46.Kd3 Rb3 47.Kd4 e5 0–1. ferminkatcho (1670) – grom98 (1915), kurnik, 2014.

6.cd5 0–0 7.de6 Be6 8.Qc2 Nbd7 9.Be2 c5 (9...Re8 10.0–0=) 10.0–0 (10.a3 Ba5=) 10...Qe7 11.Nc3 h6 (11...c4 12.Rfd1=) 12.a3 Ba5 13.Rac1 Rac8 14.Qa4 Bb6 15.Ne4 a6 16.Nf6 Nf6 17.Qh4 Bd8 ½–½. Mosshammer,Michael (1890) – Taras,Iulian (1760), AUT–ROU, 2012.

6.cd5 ed5 7.Qa4 Nc6 8.Nd4 Bb1 9.Nc6 bc6 10.Rb1 +/–.

6.cd5 Nd5?! 7.a3 Bb1 8.ab4 +=.

6.Qa4 Nc6

7.Nd4 a5 8.Nc6+= bc6 9.Qc6 Ke7 10.a3 Bc5?? (10...Qd6 11.Qa4 dc4 12.ab4 ab4+/–) 1–0. Antoszkiewicz,G – Preusse,G, M44D, 1991.

7.Nd4 Bb1?? 8.Rb1 dc4 9.Bc1 Bc5? (9...a5 10.a3 c3 11.ab4 ab4+–) 10.Rb7+– (10.Nc6?! bc6 11.Qc6 Nd7 12.Bc4 Bd6+=) 10...0–0? (10...Bd4 11.Qc6 Qd7 12.Qd7 Kd7 13.ed4 Rhb8 14.Rb8 Rb8 15.Bc4 a5+–) 11.Nc6 (11.Qc6?! Bd4 12.ed4 Qd4 13.Qc4 Qe5 14.Be2 Nd5+–) 11...a6 (11...Qd7+–) 12.Nd8 Rfd8 13.Rc7 Bd6 14.Rc4 Nd5 15.Rc6 g6 16.Ra6 Rac8 17.Bb2 e5 18.Bc4 (18.Bc4 Be7 19.a3+–) 1–0. Fischer,D – Trutzel,P, Germany II/2124, 1983.

7.Nd4 Bb1?? 8.Rb1 Bd2 9.Kd2 Ne4 10.Kc1 Nc5 11.Nc6 Qd7 12.Qc2 Qc6 13.Bg7 Rg8 14.Qh7 0–0–0 15.Bf6 Rde8 16.Qf7 Rgf8 17.Qg6 Rg8 18.Qc2 Na4 19.Bd4 Kb8 20.c5 e5 21.Bb5 Qh6 22.Be8 Re8 23.Qa4 ed4 24.Qe8# 1–0. Machete99 – guest471, ICC, 2002.

7.Nd4 Bb1?? 8.Rb1+/– Qd6?? 9.Nc6+– bc6 10.Bf6 Bd2 11.Kd2 gf6 12.c5! Qd7 (12...Qc5 13.Qd4 Double attack (13.Qd4 Decoy)) 13.Ba6 0–0 14.Bb7 Rad8 15.Bc6 (15.Bc6 Qe7 16.Qa7+–) 1–0. b4_player – story, casual, 2013.

7.Nd4 Bd6 8.Nc6+= Qd7 (8...bc6!? 9.Qc6 Kf8 10.Bf6 Qf6+=) 9.c5+– Bc5 10.Bb5 a6 (10...bc6?? 11.Bc6 Rd8 12.Bf6 gf6 13.Bd7 Rd7 14.d4+–) 11.Nd4 c6 12.Nf5 ef5 13.Bd3 Qe6 (13...Be7 14.Qc2+–) 14.Qc2 Bd6 15.Bf5 Qe7 16.0–0 g6 17.Bh3 0–0 18.d3 Rfe8 19.Nd2 Be5 20.Be5 Qe5 21.d4 Qh5 22.Rab1 Re7 23.Qc5 Rd7 (23...Rc7+–) 24.Bd7 Nd7 25.Qd6 (25.Qe7 Qf5 26.Rb7 Nf8+–) 25...Qe2 26.Nf3 (26...Nf8 27.Rb7+–; 26.Qd7 Qd2 27.Qb7 Rd8 28.Qa6 Kg7+–) 1–0. marekt – kiranyaz, ChessWorld.net, 2003.

7.Nd4 Qd7 8.Nc6 Bd2? 9.Nd2+– bc6? (better is 9...Qc6 10.Qc6 bc6+–) 10.cd5 cd5 (10...ed5 11.Bf6 gf6+–) 11.Bb5 (11.Bb5 Qb5 12.Qb5 Nd7 13.Qc6+–) 1–0. Pcmvr – DePoelmeester, playchess.de, 2004.

7.Nd4 Qd7 8.Nc6 Bd6 9.Bf6 gf6 10.cd5 bc6 11.dc6 (11.Qc6?! Qc6 12.dc6 Be4=) 11...Qc8 12.Ba6 Qd8 13.Bb7 Rb8 14.Nc3 Bc5 15.d4 Bb6 16.Nb5 a5 17.Na3 Rg8 18.g3 Qd5 19.0–0–0?? (better is 19.Rg1 Qf3 20.Nc4 Bd4 21.Nd6 (21.ed4? Qc3 22.Nd2 Qa1 23.Qd1 Qd4–+) 21...Kf8 A) < 22.ed4 Qc3 23.Kf1 Bc2–+ (23...Qa1?! 24.Kg2 Bh3 25.Kh1–+; 23...cd6?! 24.Qd1–/+); B) 22.Qd4+/–) 19...Qa2–+ 20.f3 Rd8 21.e4 Bg6 22.h4? (22.Rhe1 Bd4! 23.Rd4 Qa1 24.Nb1 Qd4 25.Qd4 Rd4–+) 22...Bd4! 23.Rd4 (23.Qd4 Rd4) 23...Qa1 24.Nb1 Qd4 25.Qd4 Rd4 26.h5 Be4 27.fe4 Re4 28.Nd2 Re3 29.Rg1 (better is 29.Nf1 Re2 30.Ba6–+) 29...Rgg3 30.Rg3 Rg3 31.Ne4 Rg1 32.Kb2 Ke7 33.Ba6 f5 34.Nc5 Rh1 (34...Kd6 35.Nd7 Kc6 36.Ne5 Kd5 37.Nf7–+) 35.Ka3 Rh5 36.Bb5 f4 (36...f4 37.Ne6 fe6–+) 0–1. hal1958 – pirco, HCL–A1276 playchess.de, 2003.

7.cd5 Qd5 8.Bf6 (8.Bb5!? a5 9.Bf6 gf6 10.a3=) 8...gf6+= 9.a3 Be7 (9...Ba5 10.Bb5 Bd3 11.Qa5–/+) 10.Nd4 0–0 (10...Bb1 11.Nc6 Be4 12.f3=) 11.Nc3= Qc5 12.Nc6 Qc6 13.Qc6 bc6 14.Bc4 (14.e4 Bg6=) 14...Rfd8+= 15.e4 (15.Ke2 Rab8=) 15...Bg6 16.d3 f5 17.f3 (17.e5 Rab8 18.Ra2 f4–/+) 17...Bc5 18.h4 (18.Kd2 Rab8 19.Rhb1 Rb1 20.Rb1 fe4 21.fe4 Ba3–/+) 18...h5 19.Ne2 (19.Kd2 Rab8 20.Rhb1 fe4 21.fe4 e5–/+) 19...Rab8 20.Nf4 Bd4 (better is 20...Kh7–/+) 21.Ra2?? (better is 21.Rd1 Kh7 22.ef5 ef5 23.Ne2–/+) 21...Rb1–+ 22.Ke2 Rh1 23.Ng6 fg6 24.Be6 (24.ef5 gf5 25.Be6 Kh8–+) 24...Kg7 25.Rc2 c5 26.ef5 Re8 27.g4 (27.Kd2 gf5 28.Bf5 Rb8–+) 27...Rh2 (better is 27...gf5 28.gf5 Rb8 29.Ba2–+) 28.Kd1 Rc2 (better is 28...Rh4 29.Re2–+) 29.Kc2 gf5 30.Bf5 Bf2 (30...Re3 31.gh5 Rf3 32.Be4 Rf2 33.Kb3–+) 31.Kc3 (31.gh5 Re2 32.Kb3 Kh6–+) 31...hg4 32.fg4 Bh4 33.Kc4 Bf2 34.Kd5 (34.Be4 Rd8 35.Bf5 Rd4 36.Kb5 Rf4–+) 34...Rb8 35.Kc6 (35.Kc4 Bd4–+) 35...Rb6 36.Kc7 Ra6 37.Kb7 (37.Kd7 Ra3 38.Kc6 a5–+) 37...Ra3 38.Kc6 Kf6 39.Kb5 Ke5 40.Be4 (40.Kc6 Rb3 41.Bc8 Rd3–+) 40...Be3 (better is 40...a6 41.Kc6 c4 42.dc4 Ke4 43.c5–+) 41.Kc4 (41.g5 Rb3 42.Ka4 Rb4 43.Ka5 Bg5–+) 41...Ra1 (better is 41...a6 42.Bb7–+) 42.Bf5 Rc1 (42...a5 43.Kb5–+) 43.Kb3 Kd4 44.Kb2 Rc3 45.Bh7 Rd3 0–1. Fonseca,Breno Caetano (1800) – Britez,Jorge Antonio G (1880), Foz do Iguacu BRA, 2nd Open, 2012.

7.Ne5 a5 8.a3 Bd6 (8...Be7!? 9.Nc6 bc6 10.Qc6 Kf8=) 9.Nc6+/– bc6 10.Qc6 Nd7 11.c5 (better is 11.Bg7!? Rg8 12.Bd4+/–) 11...Bc5= 12.d4 (better is 12.Bg7 Rg8 13.Be5=) 12...Bd6–/+ 13.Nc3 Kf8 14.Nb5 Exerts pressure on the backward pawn 14...Nb6 15.Nd6 Qd7?? (better is 15...cd6 16.Rc1 Rc8+=) 16.Qd7+– Nd7 17.Nf5 ef5 1–0. hen4daleko – lolek3106, kurnik, 2014.

7.Ne5 a5 8.Nc6 bc6 9.Qc6 Kf8 10.a3 Be7 11.Be5 Rc8 12.Nc3 Ng4 13.Bd4 Qe8 14.cd5 ed5 15.Bb5 Qc6 16.Bc6 Bd6 17.h3 (17.Bd5?! c5 18.Nb5 Bh2+=) 17...Ne5 18.Bd5 Ke7 (18...c5!? 19.Be5 Be5+/–) 19.g4+– Bd3 20.f4 Nd7 21.Bg7 Rhg8 22.Bh6 Rg6 23.Bg5 f6 24.Bh4 Nc5 25.Ba2 c6 26.Bb1 Rh6 27.Bg3 Rg6? (better is 27...Nb3 28.Ra2 Bb1 29.Nb1 Rg8+–) 28.Bd3 Nd3 29.Ke2 Nc5 30.d4 Nd7 31.Ne4 Rg7 32.Nd6 Kd6 33.f5 Kd5 34.Kd3 Re7 35.Rac1 Rce8 (35...c5 36.dc5 Rc5 37.Ke2 Rc1 38.Rc1+–) 36.Bf4 c5 37.Rc4 Re4 38.Rb1 Rf4 (38...Kc6+–) 39.ef4 Re4 40.Rb7 Re7 41.Rd7! Rd7 42.Rc5 Kd6 43.g5 (43.Ra5 Rb7+–) 43...Rb7 (43...Ra7 44.Kc4+–) 44.g6 (44.Ra5!? Rb1+–) 44...Rb3 45.Rc3 Rb7 (45...Rb8 46.Kc4+– (worse is 46.gh7 Rh8+–)) 46.h4 a4 47.h5 h6 48.Kc4 (48.Rc8 Kd5 49.Rd8 Kc6+–) 48...Ke7 (48...Rb1 49.Re3 Rc1 50.Kb5+–) 49.d5 Kf8 (49...Kd6+–) 50.d6 Kg8 51.Re3 Rb1 (51...Kf8+–) 52.d7 Rd1 53.Rd3 Rc1 54.Kd5 Kg7 (54...Rc2 55.d8Q Kg7 56.Qd7 Kg8 57.Qf7 Kh8 58.Qf8) 55.d8Q Rc5 56.Ke6 1–0. Krstev,Emil (2130) – Bogoevski,Jani (2210), 22nd Open Macedonian Championship, 2013.

7.Ne5 Bb1 8.Rb1 Bd6? (better is 8...Ne4!? 9.Nc6 Bd2 10.Ke2 bc6 11.Qc6 Kf8+/–) 9.Nc6+– bc6 10.Qc6 Ke7? (10...Kf8 11.Bf6 gf6 12.c5+–) 11.cd5 (better is 11.c5!?+–) 11...Nd5 12.Bc4 (12.e4!? Nb4 13.Qc3+–) 12...Nb6 13.Bb5 Qd7?? (better is 13...f6!?+/–) 14.Qa8! Ra8 15.Bd7 Nd7 16.0–0 f6 17.Rfc1 Rb8 18.d4 Nb6 19.Bc3 Ba3 20.Bb2 Bb2?? 21.Rb2+– Kd6 22.Rbc2 Rc8 23.Rc6 Kd7 24.f4 g6 25.Kf2 Nd5 26.Kf3 h5 27.e4 Ne7 28.Ra6 Ra8 29.Rc5 c6 30.g4 hg4 31.Kg4 f5 32.ef5 gf5 33.Kg5 Kd6 34.h4 Rg8+= 35.Kf6 Rf8 36.Kg7+– Rg8 37.Kf7 Rh8 38.Ra7 Rh7= 39.Kf6?? Ng8–+ (40.Kg6 Ra7–+) 0–1. gtate (1900) – flgs (2065), net–chess.com, 2004.

7.Ne5 Be7 8.cd5 (8.Nc6 bc6 9.Qc6 Kf8 10.cd5 Nd5=+) 8...ed5 9.Bb5 0–0 10.Bc6 bc6 11.Nc6 Qd7 12.Ne7 Qe7 13.0–0 (13.Qh4 Qc5 14.Ba3 Qc2=+) 13...Rfe8 (13...Rfb8 14.Bf6 Qf6 15.Nc3=+) 14.Rc1 (14.Qc6 Rab8 15.Bd4 a5=+) 14...c5=+ 15.Qf4 Bd3 (15...Rab8!?=+) 16.Bf6+= gf6 17.Nc3 Rad8 18.Na4 c4 19.Nc3 Qe5 20.Qg3 (20.Qg4 Kh8=) ½–½. Labahn,Wolfgang – Rattier,Jerome, Beskidy, 1991.

7.Nd4 Rb8

8.a3 Be7+=

9.Nc3 0–0 10.Nc6 bc6–/+ 11.Nd1 Rb6 (11...Ne4 12.cd5 cd5 13.Rc1–/+) 12.Qa7 Qb8 (12...Ne4 13.Qa5+=) 13.Qb8+= Rfb8 (worse is 13...Rbb8 14.a4+=) 14.Bf6 (14.cd5 Nd5 15.Be5 f6+=) 14...Bf6–/+ 15.d4 e5 16.cd5 (16.de5 Be5 17.Ra2 Rb1 18.cd5 cd5–/+) 16...cd5 (16...ed4 17.Rc1 cd5 18.Rc7 de3 19.fe3–+) 17.Rc1 (17.de5 Be5 18.Ra2 Ra8–/+) 17...ed4–+ 18.Rc7 de3 19.fe3 Rb1 (19...Ra8!? 20.Be2–+) 20.Be2–/+ Bh4 21.g3 Bd8 22.Rc6 d4 (22...Ba5!? 23.Kf2 Ra1–+) 23.Rc5–/+ Be4 Black gets deadly initiative 24.0–0 (24.Re5 f5 25.0–0 Bf6 26.ed4 Be5 27.de5 Re8–+) 24...Bb6 25.Re5 (25.ed4 Bc5 26.dc5 Rc8–/+) 25...Bc2–+ 26.Re7 Bd1 (26...d3 27.Bf3–+) 27.Rd1 (27.Bd1 de3 28.Be2 Bc5 29.Ref7 R1b2–/+ (29...Ba3?! 30.Bc4 Kh8 31.Rb1 Rb1 32.Kg2+=)) 27...Rd1 28.Bd1 de3 29.Kf1 Kf8 30.Re5 (30.Rd7 Bc5 31.a4 Rb1–/+) 30...Rd8 31.Ba4 (31.Be2 Bd4 32.Re4 f5–/+) 31…Bd4 (31...Bd4 32.Rb5 Ra8–/+). Grehl,Siegfried – Gross,Wilhelm, corr, 1994.

9.Nc3 0–0 10.Nf5 ef5 11.cd5 Nd5 12.Nd5 Qd5 13.Bc4 (13.Qb5 Qd7+=) 13...Qg2 14.0–0–0 Qe4 15.Rhg1 g6 16.f3 (16.Qc2!? Qc2 17.Kc2–/+) 16...Qh4–+ 17.f4 Bf6 (17...Qh2? 18.Rh1 Qf2 19.Rdf1+–) 18.Qb5 (18.Qc2 Ne7–+) 18...Bb2 19.Kb2 Qf6 20.Kc1 (20.d4 Rfd8 21.Rc1 a6–+) 20...Rfd8 21.Qb2 (21.Rg5 Rd6 22.a4 a6–+) 21...Qd6 22.h4 (22.Qb3 Qd7 23.Bb5 a6–+) 22...b5! 23.Bb3 (23.Bb5 Qc5 Double attack (23...Qc5 Decoy)) 23...b4 24.a4 h5 25.Rg5 (25.Rg2 Na5 26.Rdg1 Kf8–+) 25...Na5 26.d3 (26.Qa2 Rd7 27.d4 Re8–+) 26...Rb6 27.Rg2 Re8 0–1. Kural,A. Serhat (2135) – Araboga,Mesut (1995), 12th AfroAsia Zonal Champs Prelim Group, 2009.

9.Nc3 dc4 10.Nf5 ef5 11.Bc4 +=.

9.Nc6 bc6 10.Bf6 A) 10...gf6?! 11.Nc3=; B) worse is 10...Bb1 11.Bg7 (11.Qc6?! Qd7 12.Qd7 Kd7 13.Bg7 Rhg8=) 11...Rg8 12.Bd4+/– (worse is 12.Qc6 Qd7 13.Qd7 Kd7=); C) 10...Bf6–/+.

9.cd5 Qd5 10.Nc3 Qd6 11.Nf5 (11.Bb5 0–0 12.Nf5 ef5+=) 11...ef5 12.d4 (12.Bb5 0–0+=) 12...f4 13.Be2 (13.0–0–0 Ng4 14.d5 Nf2 15.dc6 Nd1 16.cb7 c6 17.Qd1 Qe6 18.ef4 Rb7+=) 13...fe3–/+ 14.fe3 Qe6 (14...0–0 15.0–0+=) 15.Rd1 Qe3 (15...Rd8 16.Bc1–/+) 16.d5 b5 17.Nb5 Ne4 The mate threat is Qf2 18.Bd4 a7 becomes the focus of attention 18...Nd4 19.Qd4 Bc5 (19...Qd4 20.Rd4 Nf6 21.Rf1–/+) 20.Qe3+= Be3 21.Rf1 0–0 22.Rf5 Bg1 23.Rh5 (23.Re5 f5 24.h3 Bf2 25.Kf1 Bc5–/+) 23...Rb7 24.d6 (24.Kf1 Bh2! 25.Rh2 Ng3 26.Kf2 Ne2–+) 24...cd6 (24...g6 25.dc7 gh5 26.Rd8 Rc7 27.Rf8 Kf8 28.Nc7 Bh2 29.Nb5 Bg3 30.Kf1–/+) 25.Nd6 Nd6 26.Rd6 g6 27.Rh3 (27.Rb5 Re7 28.h3 Rfe8–/+) 27...Re8 28.Kd1 (28.Rd1 Kg7–+) 28...Bc5 (28...Rc8 29.Bd3–/+) 29.Rd2 Be3 30.Rd3 Bf4 31.Rd4 Rb1 32.Kc2 Rc1 (32...Re2?! 33.Kb1 Be5 34.Rd5=) 33.Kd3 Ra1 34.Ra4 Ra2 35.Bf3 (35.Bf1 Rf2 36.Rf3 Rf3 37.gf3 Re3 38.Kc4 Bb8–+) 35...Re3 36.Kd4 Rea3 37.Ra3 Ra3 38.Ke4 (38.Rh4 Bc7 39.Kd5 f5–+) 38...Ra4 (38...Bg5 39.Rg3 Bh4 40.Rh3–+) 39.Kd5 a5 (39...f5 40.g3 Be3 41.Kc6–+) 40.Rh4 Kg7 41.g3 g5 42.Rh5 (42.Rh3 Be3 43.g4 Rd4 44.Kc6 a4–+) 42...Be3 43.Kc6 (43.h4 g4 44.Be2 Rd4 45.Kc6 a4–+) 43...f5 (43...Rc4 44.Kb5 Rc5 45.Ka4–+) 44.Kb5 Rb4 45.Ka5 Bd2 46.Rg5 (46.Ka6 Kg6 47.Be2 Re4–+) 46...Kh8 (46...Kh8 47.Rh5 Rb3 48.Ka6 Rf3–+; 46...Bg5?! 47.Kb4 Be3 48.Kc4=) 0–1. Fritz,Harry – Rudbeck,Joergen, corr 3GMM–F, 2002.

9.cd5 Qd5 10.Nc3 Qd7 11.Nf5 ef5 12.d4 (12.Be2 0–0 (12...g6 13.0–0 0–0 14.d4 Ne4 15.Ne4 fe4 16.Qb3 Bg5) 13.d4 Ne4 14.Qc2 Nc3 15.Bc3 f4 16.0–0 Rfe8; 12.Rd1 0–0 13.d4 Nd5 14.Bd3 g6 15.0–0 Bf6 16.Nd5 Qd5) 12...0–0 (12...f4 13.Bd3 0–0 14.0–0 f3 15.Qd1 fg2 16.Kg2 Qe6) 13.Be2 a6 (13...Rfd8 14.0–0 g6 15.Rfd1 Nd5 16.Nd5 Qd5) 14.0–0 (14.Qc2 Na5 15.a4 c5 16.dc5 Qe6) 14...b5 15.Qc2 (15.Qa6?? Rb6 16.Qb6 cb6 17.Bb5 Qd6–+) 15...Na5 16.Rfd1 Bd6 (16...Nc4+=) 17.Nb1 Rfe8 18.d5 Be7 (18...f4 19.Bf6 gf6 20.e4–/+) 19.Be5+= Rbd8 (worse is 19...Nd5 20.Nc3 c6 21.Bb8 Rb8 22.Bf3+/–) 20.Nc3 Ng4 21.Bg3 Bd6 22.Na2 (22.Bd6 cd6 23.Rd4 Rb8+=) 22...Nc4–/+ (22...Ba3 23.Qc3 Nc4 24.Bc4+–) 23.Bc4 bc4 24.Qc4 Bg3 25.hg3 Qd6 26.Qc6 Qe7 27.Nb4 Rd6 28.Qc5 Qg5 29.Qc7 Qh6 30.Nd3 Qh2 31.Kf1 Rdd8 32.Qf4? Rd5 33.Ke2 Qg2 34.Rab1 g6 35.Rb8 Rb8 36.Qb8 Kg7 37.Qf4 Nf6 38.Ne1 Qe4 39.Rd5 Qd5 40.Qb4–/+ Ne4 41.Qd4 Qd4 42.ed4 Kf6 43.Nd3 Nc3 44.Ke3 Nd5 45.Ke2 Nb6 46.Nc5 a5 47.a4 h5 48.Ke3 Ke7 49.Nb3 Na4 50.Na5 g5 51.f4 g4 52.Nc4 Nc3 53.Kf2 Nd5 54.Ke1 h4! 55.gh4 Nf4 56.Kf2 Nh5 57.Ne3 Ke6 58.Ke2? g3–+ 59.Kf3 f4 60.Nc4 Kd5 61.Ne5 f6 62.Nd3 Kd4 63.Nc1 f5 64.Ne2 Kd3 65.Nc1 Kd2 66.Nb3 Ke1 67.Kg2 f3! 68.Kf3 Kf1 69.Nd2 Kg1 70.Nc4 Kh2 71.Ne3 Kh3 72.Ng2 Ng7 73.Nf4 Kh4 74.Ne2 Nh5 75.Ng1 f4 76.Kg2 Kg4 77.Nf3 Nf6 78.Ne5 Kf5 79.Nf7 Ng4 80.Nd6 Kg5 81.Ne4 Kh4 82.Nd2 Ne5 (82...Ne5 83.Kf1 f3–+) 0–1. Gavrijski,Dimitar (2140) – Zylla,Johannes (2125), corr ICCF WSTT/3/06/Final, 2009.

8.Nc6 bc6

9.Qc6 Qd7

10.cd5 Qc6–/+ 11.dc6 Bb1 12.Rb1 Ba3! 13.Ba3 Rb1 14.Ke2 Ra1 15.g3 (15.Kf3!?–/+) 15...Ra2–+ 16.Bc5 (16.Bb4 a5 17.Bc3 Ne4 18.Bg7 Rg8–+) 16...Ne4 17.Bb4 a5 18.Bg2 Nf2! (< 18...ab4 19.Be4 Ke7 20.Rb1–+) 19.Kf2 (19.Rb1 ab4 20.Rb4 Ke7–+) 19...ab4 (20.Ke2 Ke7–+) 0–1. Trkn – wko2712, itsyourturn.com, 2000.

10.cd5 Qc6–/+ 11.dc6 Bd2 12.Nd2 (12.Kd2 Rb2) 12...Rb2 13.f3 Bc2 14.Nc4 Rb4 (14...Rb8 15.a4=) 15.Rc1 (15.a3 Rb8=) 15...Ba4 16.a3 Rb3 (16...Rb8 17.e4=) 17.Be2 Bb5 (< 17...Bc6 18.Na5 Re3 19.Nc6 Ra3 20.Kf2+/–) 18.Kf2 a6 (18...Ke7 19.Nd2 Rb2 20.Rb1 Rb1 21.Rb1 Bc6 22.Rc1=) 19.Rb1+= Rb1 (19...Rc3 20.a4 Bc4 21.Bc4+=) 20.Rb1 Ke7 21.Na5 Be2 22.Ke2 Kd6 (22...Rd8 23.e4+=) 23.e4 Ra8 (23...Kc5 24.Ke3+=) 24.Ke3+/– h6 25.Kd4 (25.Rb7 e5+=) 25...e5 26.Kc4 Re8 (26...g5 27.Rd1 Ke7 28.Nb7+/–) 27.Rd1 Ke7 28.Nb7 Rb8 29.Kb4 g5 30.Ka5 g4 31.a4 gf3 32.gf3 Ra8 (32...Rg8 33.Ka6 Rg2 34.h4+–) 33.Nc5+– Rb8 (33...h5 34.f4 ef4 35.e5+/–) 34.Na6 Rb6 35.Nb4 Ke6? (better is 35...Rb8+–) 36.Rd8 h5 (36...Ke7 37.Rh8+–) 37.h4 Ke7 38.Rh8 (38...Kd6 39.Rh6+–) 1–0. Rosenhahn,Eberhard – Borrmann,Fritz, corr 3GMM½–02, 1998.

10.cd5 ed5 11.Qd7 Kd7 12.Bf6 gf6 13.Nc3 =+.

10.Qd7 Kd7 11.Nc3 Be7 12.Nd1 Rb7 13.cd5 ed5 14.Rc1 Rhb8 15.Be5 Ba3 16.Bb5 (16.Rc3 Bb4 17.Bf6 gf6–/+) 16...Ke7 17.Rc3 Bb4 (17...Rb5?! 18.Ra3 Bc2 19.Ke2 (< 19.Ra7 Bd1 20.Rc7 Ke6–+; < 19.Bc7 R8b7 20.Nc3 Rb1 21.Nb1 Rb1 22.Ke2 Rh1–/+) 19...Bd1 20.Rd1+=) 18.Bf6 gf6 (18...Kf6 19.Rc6 Bd6 20.a4–/+) 19.Bd3=+ Bc3 (19...Bg6 20.Bg6 fg6 21.Rc6=+) 20.Bf5 Be5 21.f4 (21.Bh7 Rh8 22.Bf5 Rh2 23.Rh2 Bh2=) 21...Bd6 22.Bh7 d4 23.Ke2 (23.h4 Rb5 24.Bd3 Ra5=+) 23...de3 24.Ke3 Rb4 25.g3 Kf8 26.h4 Kg7 27.Bc2 (27.Bf5 R4b5 28.Be4 f5=) 27...Bc5=+ 28.Kf3 Rd8 29.d3 f5 30.Re1 Kg6 31.Re5 (31.Re2 Bd4=) 31...Bd4=+ 32.Re2 a5 (32...c6 33.Bb3=) 33.a3 (33.Ne3 Rb2 34.Ba4 Re2 35.Ke2 c5=) 33...Rbb8 34.Ne3 Be3 35.Ke3 (35.Re3!? Rb2 36.Re2=+) 35...Re8–/+ 36.Kf3 (36.Kd2 Re2 37.Ke2 Rb2–+) 36...Re2 37.Ke2 Rb2 38.Kd2 Ra2 39.Kc1 (39.Kc3 Ra1–+ (39...Ra3 40.Kb2+–)) 39...Ra1 (39...Ra3?? 40.Kb2 Rd3 41.Bd3+–) 40.Bb1 Ra3 41.Kb2 Ra4 42.Bc2 Rb4 43.Ka3 (43.Kc3 Kf6–+) 43...Rb8 44.d4 Rd8 (45.Kb3 Rd4–+) 0–1. Scialino,Valentino – Zonneveld,Will, QN.2003.0.00265, 2003.

10.Qd7 Kd7 11.Nc3 Be7 12.Nd1 Rb7 13.cd5 ed5 14.Rc1 Rhb8 15.Be5 Ba3 16.Rc3 Bd6 17.Bd6 Kd6 (17...cd6?! 18.d4=) 18.d4 Rb1 19.Be2 Ra1 20.Ra3 Rb2 21.Ra7 (21.Ra6 c6 22.Ra7 Bc2–/+) 21...Bc2 (21...Rba2?! 22.Ra2 Ra2 23.Rf1=+) 22.0–0 Rbb1 (22...Raa2?! 23.Nb2 Ra7 24.Rc1=) 23.Ra6 Kd7 24.f3 Bd1 (24...Rd1?! 25.Bd1 Rd1 26.Rd1 Bd1 27.a4=) 25.Rd1 Rd1 26.Bd1 Rd1 27.Kf2 Rd2 28.Kf1 Ne8 29.Ra5 c6 30.Ra7 Ke6 31.Ra6 Nd6 32.Rc6 Ra2 33.Rb6 h5 34.Rc6 h4 35.h3 Kd7 36.Rc5 (36.Rc1 Nf5 37.Re1 g5–+) 36...Nc4 37.Rd5 Ke6 38.Rh5 Ne3 39.Kg1 Ng2 40.d5 Kd6 41.Rg5 Nf4 42.Rg7 Nh3 43.Kh1 f5 44.Rh7 Ra1 45.Kg2 Nf4 46.Kh2 Ra2 47.Kg1 Ra4 (47...h3 48.Rh4 Ra4 49.Rh8 Kd5 50.Kh2–+) 48.Kh2 Nd5 49.Kh3 Rf4 50.Rh4 Rf3 51.Kg2 Ra3 52.Rh8 Ke5 53.Kf2 f4 54.Re8 Kf5 55.Rf8 Nf6 56.Kg2 Ke5 57.Kf2 f3 (58.Kg3 Ne4 59.Kh2 f2–+) 0–1. Pierred (2280) – Wolf2 (2490), Rated game, 2m + 0s, 2006.

10.Qd7 Kd7 11.Bf6 gf6 12.a3 Ba5 =+.

10.Qd7 Nd7

11.Nc3 0–0 12.cd5= ed5 13.d3 (13.Rc1!?=) 13...d4=+ 14.ed4 Rfe8 15.Kd2 (15.Kd1=+) 15...c5 (better is 15...Bc5!? 16.Rb1 Bd4–/+) 16.Kd1 (better is 16.d5=) 16…Ba5 (17.Kc2 cd4–/+) 0–1. Hunstock – Gross,Wilhelm, corr SOK–92–87, 1992.

11.Nc3 Bc5 12.Nb5 0–0 13.cd5 =+.

11.Bg7 Rg8

12.Bd4 Bb1 13.Ba7 Rb7 14.Rb1 c5 15.cd5 Ra7 16.de6 fe6 =+.

12.Bc3 Bd6

13.d3 dc4 14.e4 Bg6 =+.

13.d3 Nc5

14.Nd2 Nd3 15.Ke2 Nb4 16.g3 –/+.

14.Nd2 Nd3 15.Ke2 c5 16.g4 Bg6 17.cd5 ed5 18.f4 +=.

14.Nd2 Nd3 15.Ke2 Kd7 16.g4+= Bg6 17.cd5 Be5 (17...ed5!? 18.f4 Be4 19.Ne4 de4+=) 18.Be5 Ne5 19.de6 fe6 20.h3 Rb2 21.Ke1 (21.Bg2!?=) 21...Rd8+= 22.f4 Ke7 23.Rc1 Rdd2 (worse is 23...Rbd2 24.fe5 c6 25.Rc6 Rd1 26.Kf2 Rf8 27.Ke2=) 24.fe5 Rbc2 25.Rc2 Rc2 26.a4 Ra2 27.Be2 Ra4 28.Kf2 Ra5 (28...Ra2 29.Kf3–/+) 29.Rc1+= Kd7 30.Rd1 Kc6 31.Bf3 Kb5 (31...Kb6 32.Rd8 Rc5 33.Rb8 Ka5 34.Be2+=) 32.h4 (32.Rd7 c5=) 32...Kb6 (32...Ra2 33.Be2 Kc5 34.Kf3+=) 33.h5 (33.Rd8 Rc5=) 33...Bc2 34.Rc1 (34.Rd8 Re5 35.Rb8 Ka6+=) 34...Rc5 (34...Ra2 35.Kg3 a5 36.g5+/–) 35.g5 a5 (35...a6 36.e4 Re5+–) 36.g6 Bg6 37.hg6 hg6 38.Rb1 (38.Rg1 Re5 39.Rg6 Kc5+/–) 38...Ka7 39.Ke2 g5 40.Kd3 Re5 (40...a4 41.Ra1 Ra5 42.Bg4+/–) 41.Kd4 (41.Rb7!? Ka6 42.Rc7+/–) 41...Rf5+= 42.Bg4 Rd5 43.Ke4 a4 44.Be6 Ra5 45.Bd5 (45.Kd3 a3+=) 45...a3 46.Kd4 g4 (46...Ka6 47.e4 Ka7 48.e5 Ra4 49.Kc5+–) 47.e4 1–0. Reuter,Alfred J (1790) – Gaiter,Warren D (1635), IECC, 2000.

14.Nd2 Nd3 15.Ke2 Be5 (15...Nb4 16.h3=+) 16.Be5 Ne5 17.cd5 ed5 18.Nb3 Kd7 19.Kd2 Kd6 (20.Rc1 c5 21.Nc5 Rb2 22.Ke1 Rc8–+) 0–1. Plock,Joerg – Zbroja,Tadeusz, corr 3GMM½–10, 1998.

14.cd5 Nd3 15.Bd3 Bd3 16.Kd2 –/+.

14.e4? de4–/+ 15.d4 Na4 (15...Nd3!? 16.Bd3 ed3–+) 16.Ba5+= e3 17.Nc3 ef2 18.Kf2 Rb2 19.Ke3 Nc3 20.Bc3 Rc2 (20...Rbg2?! 21.Bg2 Rg2 22.a4+=) 21.Be1 c5 (21...Rg4 22.d5 Bc5 23.Kf3–+) 22.d5 (22.a4!?–/+) 22...Be5 23.Rd1 Ra2 24.h3 (24.Bh4 Ra3 25.Kf2 Be4 26.de6 fe6 27.Rd8 Kf7 28.Rd7 Kg6–+) 24...Bc2 (24...Ra3 25.Kd2–+) 25.Rd2 Ra3 26.Ke2 Bb3 27.de6 (27.Ke3 Bc4 28.Ke4 ed5 29.Ke5 Re3 30.Kd6 Re1 31.Bc4 Rh1 (31...dc4? 32.Re1 Kf8 33.Rc1+–) 32.Bd5 Rc1–+) 27...fe6 (27...Bc4!? 28.Kf2 Bg3 29.Kg1 Be6 30.Bg3 Rgg3 31.Bb5 Ke7 32.Kf2–+) 28.Kd3 Bd4 (28...a5 29.Ke4 Bc3 30.g4–+) 29.Ke4 Bc2!! Black gets in control 30.Bd3 (30.Rc2 Re3 Theme: Double Attack) 30...Ba4 (30...Bd3 31.Rd3 Rd3 32.Kd3 Rg2 33.Rf1–+) 31.Kf3? (better is 31.Kf4–+) 31...Bc6 32.Kf4 e5 33.Kf5 e4! (worse is 33...Rg2 34.Rg2 Bg2 35.Rh2 Rd3 36.Rg2 Rh3 37.Rg7–+) 34.Bc2 (34.Be4 Theme: Blockade 34...Bd7) 34...Bd7 (better is 34...e3 35.Re2 Rg2 36.Rg2 Bg2–+) 35.Ke4 Re3 36.Kf4 Re7 37.g4 Rf8 38.Kg3 (38.Kg5 Bc6 39.Rdh2 Re5 40.Bf5 Be3 41.Kh4 Bf4–+ (41...Ref5?! 42.gf5 Bh1 43.Re2–/+)) 38...Bc6 39.Rd4 cd4 (39...Bh1?! 40.Ba4 Kf7 41.Rf4 Kg8 42.Rf8 Kf8 43.Bf2–/+) 40.Rg1 Rf3 41.Kh4 Ree3 Black prepares d3 (41...d3 42.Bd1 Rfe3 43.Bd2–+) 42.Bg3 d3 43.Bd1 d2 (43...Rf7 44.Re1 Re1 45.Be1–+) 44.Rg2 Rd3 45.Rg1 a5 (45...a5 46.Bf3 Bf3–+ (46...Rf3?! 47.Rd1+=)) 0–1. Labahn,Wolfgang – Gross,Wilhelm, corr SOK–92–87, 1992.

8.Nf5 ef5

9.cd5 Nd5 10.Bg7 Rg8 11.Bb2 f4 12.a3 Ba5 13.Qe4 Kf8 14.Bc4 (14.ef4?! Qe8 15.Qe8 Re8 16.Kd1 Bb6=) 14...Nce7? (14...Nb6 15.Ba2 Qe7 16.Qh7 fe3 17.Qh6 (worse is 17.fe3 Qe3 18.Kd1 Qf4=) 17...Ke8 18.fe3+/–) 15.0–0 (15.Qh7!? b5 16.Bb3 c5+–) 15...b5+/– 16.Bb3 Rb6 (16...f5 17.Qf3+/–) 17.ef4 (17.Qh7 Rbg6 18.e4 Rg2 19.Kh1+/–) 17...Rbg6+= 18.g3 h5 (18...c5!?+=) 19.f5 Rg5 Black terminates the opponent with strong threats 20.f4 (20.f6 Nc6 21.Re1+–) 20...Rg3= 21.hg3 Rg3 22.Kh2?? (better is 22.Kf2 Rb3 23.Qc2 Bb6 24.Ke1=) 22...Rb3 (22...Nf5 23.Qg2 Qh4 24.Kg1 Bb6 25.Bd4 Bd4 26.Rf2 Rg2 27.Kg2 Qf2 28.Kh3 Nf4) 23.Qc2= Nf5 Do you see the mate threat? 24.Qc5?? (24.Qb3 Nde3 25.Qe3 (25.de3 Qh4 26.Kg1 Qg3 27.Kh1 Qh3 28.Kg1 Ne3 29.Bg7 Kg8 30.Qe3 Qe3 31.Kg2 Qe4 32.Kh3 Kg7–+) 25...Ne3 26.de3+=) 24...Nd6–+ 25.Bc3 (25.Kg2 Qh4 (25...Rb2?! 26.Qd5 Qh4 27.Qa8 Ke7 28.Qf3–+) 26.Bc3 Qg4 27.Kh2 Nf4 28.Rf4 Qf4 29.Kh1 Bb6 30.Qh5 Qf1 31.Kh2 Bg1 32.Kg3 Ne4 33.Kg4 Qe2 (33...Rb1?! 34.Qh8 Ke7 35.Qe5 Kd7 36.Qe4 f5 37.Qf5 Qf5 38.Kf5 Ra1 39.Ba1–+) 34.Kf4 Qh5 35.Bb4 Rb4 36.ab4 Nf6 37.Nc3 Qg4 38.Ke5 Bd4) 25…Qh4 (25...Qh4 26.Kg2 Nf4 27.Rf4 Qf4–+) 0–1. Beckman,F – Joyner,L, corr, 1960.

9.cd5 Qd5

10.Bf6 gf6

11.a3 Ba5 12.Qc2 0–0 13.Nc3 Bc3 14.Qc3 Rfd8 15.Bc4 (15.Rd1 Kg7=) 15...Qe5 (15...Qg2 16.0–0–0 Qe4 17.Rhg1 Kf8 18.d4+=) 16.Rc1 (16.Be2 Qc3 17.dc3 Ne5=) 16...f4 17.Qb3 (17.Be2 Rd6=) 17...Qe7 (17...fe3 18.de3 Qa5 19.Rc3=) 18.Qc3 Qe5 19.Qb3 (19.Be2 Rd6=) 19...Rd7 (19...fe3 20.de3 Qa5 21.Rc3=) 20.0–0 (20.Be2 fe3 21.fe3 Qd6=) 20...Na5+= 21.Qa4 Rd2 22.ef4 Qf5 23.Bb5 c6 24.Qa5 Rbd8 25.Qa7 Qb5 26.g3 (26.h3 R2d7 27.Rb1 Qc4+=) 26...Qb3 (26...R8d7 27.Rfe1=) 27.Rb1+= Rb2 28.Rb2 Qb2 29.Re1 (29.a4 Kg7=) ½–½. Lins,Thomas – Schuster,Ullrich, corr GER jub50 qJVM48, 1996.

11.a3 Ba5 12.Qc2 f4 13.Nc3 Qc5 14.Rb1 fe3 15.fe3 Bc3 (15...Qa3 16.Bb5 0–0 17.Rb3=) 16.Qc3+= Qc3 17.dc3 Ke7 18.g3 (18.Rb3 Ne5+=) 18...Ne5 19.Ke2 (19.Bg2 Rhd8 20.Be4 h6+=) 19...b5 20.Bh3 (20.Bg2 a6+=) 20...Rhd8 21.Bf5 h6 22.Rhd1 Rd1 23.Rd1 Rb6 24.Ra1 (24.Rb1 a5+=) 24...Ra6–/+ 25.Bd3 (25.Ra2 c5–/+) 25...Nd3 26.Kd3 Ra4 27.Kc2 a6 28.Kb3 Re4 29.a4 Re3 30.ab5 ab5 31.Ra6 (31.Kb4 c6–/+) 31...Re6 (31...Re2 32.Rc6 Rh2 33.Rc7 Ke6 34.Rb7–/+) 32.Ra2 c6 (32...Re5 33.Ra6 Re2 34.Rc6 Rh2 35.Rc7 Ke6 36.Rb7–/+) 33.Ra7 Kf8 34.Ra2 (34.Ra6 f5–/+) 34...Kg7 (34...f5 35.Rf2–+) 35.Rd2 (35.Kb4 Re4 36.Kb3 f5–+) 35...f5 36.Rd4 (36.Ka3 Re4–+) 36...Re4 (36...Re2 37.h4–+) 37.Rd6 Rc4 38.Kb2 (38.h3 h5–+) 38...f6 (38...f4 39.gf4 b4 40.cb4 Rb4 41.Ka3 Rf4 42.Rc6–+) 39.Kb3 Kf7 (39...h5 40.Rd7 Kg6 41.Rd6–+) 40.Rd7 Kg6 41.Rd6 h5 42.Re6 (42.h4 f4 43.gf4 Kf5–+) 42...Kf7 43.Rd6 (43.Re3 f4 44.Rf3 Ke6–+) 43...f4 44.gf4 (44.Rd8 Re4–+) 44...Ke7 (44...Rf4?! 45.Rc6 Rh4 46.Rb6–+) 45.Rd2 Rf4 46.Rg2 h4 47.Kc2 (47.Rg7 Kd6–+) 47...Ke6 48.Kd3 Ke5 (48...c5 49.Ke3 Ke5 50.Rg7–+) 49.Ke3 c5 Black intends b4 50.Rg8 Re4 51.Kd2 f5 (51...b4 52.Rc8 Kd5 53.cb4 cb4 54.Kd3 Rd4 55.Ke3–+) 52.Rc8 Kd5 53.Kd3 b4 54.cb4 (54.Rd8 Ke5 55.cb4 cb4–+) 54...cb4 55.Rb8 (55.Rd8 Ke5–+) 55...Rd4 56.Ke2 Kc4 57.Rc8 Kb3 58.h3 (58.Rc5 f4–+) 58...Rc4 (58...Rc4 59.Rd8 Kb2–+) 0–1. Pommerel,Wim (2405) – Rudbeck,Joergen (2340), corr 3GMM–F, 2001.

11.a3 Ba5 12.Qc2 f4 13.Nc3 Qc5 14.ef4 +=.

11.a3 Ba5 12.Qc2 f4 13.Nc3 Qe5 (13...Bc3 14.Qc3 fe3 15.fe3=) 14.Rc1 (14.Rb1 fe3 15.fe3 Bc3 16.Qc3 Qc3 17.dc3 Ke7=) 14...Bc3 (14...fe3 15.fe3 Ne7 16.Bc4=) 15.Qc3 fe3 16.fe3 Rg8 17.g3 (17.Qb3 Ke7=) 17...Rd8 (17...Qd5 18.Rg1 Ne5 19.Be2=) 18.Bg2+= Qc3 (18...Rd6 19.Qc2+=) 19.Rc3 Rd6 20.Ke2 Kd7 21.Rb1 (21.Be4 Rg5 22.Rb1 f5+=) 21...Rb8 22.Rc4 f5 23.Rb5 Rf6 (23...Nd8 24.Rf5 Rh6 25.h3+/–) 24.Rf4 (24.Bc6 Rc6 25.Rc6 Kc6 26.Rf5 Rf8+/–) 24...Ne7 (24...Rh6 25.Rbf5 Nd8 26.h4+/–) 25.Rh4 (25.Rb7 Rb7 26.Bb7 Rh6 27.Rd4 Ke8+/–) 25...c6 26.Ra5 h6 27.Ra7 Nc8 28.Ra5 Nd6 29.d3 (29.Rf4 Re8+/–) 29...Re8+= 30.Rf4 Nb5 (30...Rfe6 31.Rf3+=) 31.Kd2+/– Nd6 32.e4 (32.Rf3 Rfe6+=) 32...Rfe6 33.Bh3 fe4 34.Be6 Re6 35.Rh5 f5 36.Rfh4 1–0. Pommerel,Wim – Borrmann,Fritz, corr SOK–97–121, 1998.

11.a3 Ba5 12.Nc3 Bc3 13.dc3 Qe4 =.

11.Nc3 Bc3 12.dc3 0–0! –+.

7.Nd4 Qd6

8.a3 Bc5 9.Nf5 ef5 10.d4. Znosko–Borowski.

8.cd5 Nd5 9.Nf5 ef5 10.a3 –/+.

8.Nf5 ef5 9.a3 Ba5 10.cd5 Qd5 11.Bf6 gf6 =.

8.Nc6 bc6

9.a3 Bb1!? 10.Rb1 Bc5 +=.

9.a3 Rb8 10.ab4 Rb4 11.Qa2 Bb1 (11...e5+–) 12.Rb1 dc4 13.Bc4 Ne4 (13...0–0 14.Bf6 Rb1 15.Qb1 gf6 16.d3+–) 14.d3 0–0 (14...Nf6+–) 15.de4 Rfb8 16.0–0 Qd2 17.Qa7 Rb2 (17...Qc2 18.Rfc1 Qe4+–) 18.Qb8 (18...Rb8 19.Rb8 Qd8 20.Rd8#) 1–0. mtre – tt14, internet, 2002.

9.a3 Rb8 10.Bf6 Bc5 11.Bg7 Rg8 +–.

9.a3 Bc5 10.d4 Bb6 11.c5 Bc5 12.dc5 Qc5 13.Nd2 0–0 14.Rc1 Qb6 (14...Qe7 15.Qc6 Rfb8 16.Bf6 Qf6 17.Qc7+–) 15.Bd4 Qb8 (15...c5 16.Rc5 Qd6 17.Rc6+–) 16.Qc6 Ne4 17.Qc7 Nd2 18.Qb8 Rfb8 19.Kd2 Rb3 20.a4 a6 21.Bc3 Ra3 22.Ra1 Ra1 23.Ba1 Rc8 24.Bd3 (24.Ba6?! Rc2 25.Kd1 Rf2+/–) 24...Bd3 25.Kd3 a5 (25...f6 26.Rb1+–) 26.Bb2 (26...f6 27.Rc1+–) 1–0. Kilpatrick,Robert – Savage,David, corr SCCA, 1978.

9.a3 Bc5 10.d4+/– Bb6 11.c5 Bc5 12.dc5 Qc5 13.Nd2 Qc2 14.Qc2 Bc2 15.Rc1 Ba4 16.Ba6 (16.Bd3 Rb8 17.Bd4 a5+–) 16...Rb8 17.Bd4 0–0 (17...Kd7 18.Nf3+– (18.Ba7 Ra8–/+)) 18.0–0 (18.Ke2 Bb5 19.Bb5 Rb5 20.Rc6 Rb7+–) 18...Rfe8 (18...Nd7 19.Bd3+–) 19.Rb1 (19.h3+–) 19...Nd7? (better is 19...Bb5 20.Bb5 cb5 21.Ba7 Ra8+/–) 20.Ba7+– Ra8 21.Rb7 Nb8 22.Be2 Bb5 23.Bb5 cb5 24.Rc7 Na6 25.Rb7 b4 26.ab4 Nb4 27.Rb4 Ra7 28.Rfb1 g6 29.Rb7 Rb7 30.Rb7 Kf8 31.Kf1 Re7 32.Re7 Ke7 33.Ke2 Kd7 34.Nf3 h6 35.Kd3 e5? 36.Nd2 f5 37.Nb3 Kc6 38.f4 ef4 39.ef4 g5?! 40.fg5 hg5 41.Nd4 Kd6 42.Nf5 Ke5 43.Ne7 Ke6 44.Nc6 Kd6 45.Nd4 g4 46.Nf5 Ke5 47.Ne3 Kf4 48.Ng4 Kg4 49.Kd4 Kf4 50.Kd5 Ke3 51.Ke5 Kf2 52.Kf4 Kg2 53.h4 Kh3 54.Kg5 Kg2 55.h5 Kf3 56.h6 Ke4 57.h7 Ke5 58.h8R Kd6 (58...Ke4 59.Re8 Kd4 60.Kf5+–) 1–0. Grcic,Milan (1830) – Selby,Kenzo, ACT ch Belconnen, 2001.

9.a3 Bc5 10.d4 Bb6 11.c5 Bc5 12.dc5 Qc5 13.Nd2 Qd6 14.Rc1 0–0 15.Qc6 (15.Rc6 Qd7+–) 15...Ne4 (better is 15...Rfb8 16.Bb5 Qe7+–) 16.Ne4 de4 (16...Be4 17.f3 Qc6 18.Rc6+–) 17.Qc7 (17.Qc3 f6 18.Qc7 Qc7 19.Rc7 Rfc8+–) 17...Rfd8 (17...Qc7 18.Rc7 Rfc8 19.Rc8 Rc8 20.Bd4+–) 18.Qd6 Rd6 19.g4 Bg4 20.Rg1 h5 21.h3 Bf3 22.Rg7 Kf8 23.Rh7 Rad8 24.Rh8 Ke7 25.Rd8 Kd8 26.Bf6 Ke8 27.Bb5 (27…Rc6 28.Bc6 Kf8 29.Be4 Ke8 30.Bf3 Kd7 31.Rd1 Kc7 32.Bd8 Kb8 33.Ba5 a6 34.Rd8 Ka7 35.Ra8#) 1–0. Martello,Juan – Frenzel,Lothar, corr 3GMM–37, 1996.

9.a3 Bc5 10.d4 Bb6 11.c5 Bc5 12.dc5 Qc5 13.Be2 Rb8= 14.Bf6 Rb1? (better is 14...Qc1 15.Qd1 Qd1 16.Bd1 gf6+=) 15.Rb1+– Bb1 16.0–0 Bc2 17.Bd4 (better is 17.Qa6 0–0 18.Bd4+–) 17...Ba4+/– 18.Bc5 a5 19.Rb1 Kd7 20.Bd4 f6 21.Bc3 Ra8 22.Bd3 h6 23.e4 Kd6 24.f4 e5 25.fe5 fe5 26.Rf1 Ke6 (better is 26...d4 27.Bd2 Bb5 28.Bb5 cb5=) 27.ed5+/– cd5 28.Bf5?? (better is 28.Re1 c5 29.Be5+–) 28...Kd6+= 29.Bg4 d4 30.Bd2 Bb3 31.Bf3 Ra7 32.Rb1 a4 33.Rc1 c5 34.h4 c4 (better is 34...Bd5!?–+) 35.Bb4+= Ke6 36.Bg4? (better is 36.Re1 Kf5 37.Bd5+=) 36...Kd5–+ 37.Kf2 Rf7 38.Ke2 Rf4 39.Bh5 e4 40.g3 Rf6 41.Be7 Rc6 (better is 41...Rf5 42.Bg4 Rf7–+) 42.Bf7–/+ Ke5 43.Bf8 e3 44.Rf1 g5 45.hg5 hg5 46.Be8 Rb6 47.Bc5 (better is 47.Rf7!? c3 48.Bg7 Ke4 49.Re7 Be6 50.Bg6 Kd5 51.Ke1–/+) 47...Rh6 48.Bd7 Rh2 49.Ke1 (49.Kf3–+) 49...d3 50.Be3 0–1. Hal1958 – GDark7, playchess.de, 2002.

7.Nd4 Be7

8.Nc6 bc6 9.Qc6 Nd7 10.Bg7 Rg8 11.Be5 Rc8 (11...Rb8!? 12.Bc7 Rc8 13.Bd8 Rc6 14.Be7 Ke7+/–) 12.cd5 ed5 13.Nc3 Rg6 14.Qd5 Be6 15.Qd4 c5 16.Qe4 f5 17.Qa4 Kf7 18.Bf4 Bg5 (18...Nb6 19.Qa7 Nd5 20.Nd5 Bd5 21.f3+–) 19.Bg5 (< 19.Qa7 Bf4 20.ef4 Qe7+/–) 19...Qg5 20.Nd5! Qd8 (20...Bd5 21.Qd7) 21.Nf4 Rg4 22.Be2 Rg5 23.0–0 Ne5 (23...Rg7+–) 24.Ne6 Ke6 25.f4 Rg2 (25...Rg4 26.Rad1+–) 26.Kg2 Qg8 (26...Qd2 27.Rae1 Ng4 28.Qa6 Kf7 29.Qc8 Qc2+–) 27.Kh3 Ng4 (27...Nf7 28.Bc4 Kd6+–) 28.Bc4 Kd6 29.Bg8 (29...Rg8 30.Qa6 Kd5 31.Qd3 Kc6 32.Qf5+–) 1–0. orane (2160) – Jeff02104, Live Game Caissa's Web, 2004.

8.Nc6 bc6 9.Qc6 Kf8 10.a4 Rb8 11.Be5 Bd6 12.Bd6 Qd6 13.Qd6 cd6 14.Nc3 dc4 15.Bc4 Ke7 16.0–0 Rhc8 17.Be2 Rb2 unclear. Trkn – doyley, itsyourturn.com, 2000.

8.Nc6 bc6 9.Qc6 Kf8 10.Bd4 dc4 11.Qc4 Rb8 12.Nc3 Rb4 0–1. Delgado,Leo (1700) – Sussarellu,Lucia, OP–2008–0–00586, 2008.

8.Nc6 bc6 9.Qc6 Kf8 10.cd5 Nd5 –/+.

8.cd5 Qd5 9.Nc3 Qa5 10.Bb5 Qa4 11.Na4 (11.Ba4 Rb8=) 11...Kf8 (11...Be4 12.f3 a6 13.Bc6 Bc6 14.Nc6 bc6 15.Rc1=) 12.Nf5 ef5 13.Rc1 Nb4 (13...Nd5 14.Bc6 bc6 15.Ke2+=) 14.Bf6 (14.Rc7 Rb8 15.Bf6 Bf6+/–) 14...Bf6 15.Rc7 Na2 16.Rb7 a5 (better is 16...Rc8!? 17.0–0 a5+/–) 17.Nb6+– Rd8 18.Nd7 Kg8 19.Ke2 h5 (19...Be7 20.Ra1 Nb4 21.Ra5+–) 20.Nf6 gf6 21.Bc4 (21...Nb4 22.Ra1+–) 1–0. Pleschke,Helmut – McCarthy,Mike, Orang–Utan Invitational, 2001.

8.Nf5!?

8.Nc6 Qd7

9.cd5 ed5 10.e4 de4 11.g4 Bg4 12.Bb5 bc6 13.Bc6 +–.

9.cd5 bc6

10.dc6 Qd8 11.Nc3 Rb8 12.Ba3 Ba3 13.Qa3 Ne4 14.Ne4 Be4 15.Qa7 0–0 +/–.

10.dc6 Qd8 11.Nc3 Rb8 12.Ba3 Bc2?? 13.Be7+– (13.Qc2?! Ba3 14.Nb5 Be7+/–) 13...Ba4 14.Bd8 Bc6 15.Bc7 (15...Rb7 16.Be5+–) 1–0. Wasser,A – Ireland,S, Perth, 1977.

10.dc6+= Qd8 11.Nc3 Rb8!? 12.Nb5 Ne4 +=.

10.dc6+= Qd8 11.Nc3 Bd3 12.Bd3+/– Qd3 13.Nb5 0–0 14.Nc7 (The passed pawn on c6 quickly leads to threats) 14...Rfd8 (14...Rab8!? 15.Bf6 Bf6+/–) 15.Na8 Qd2 16.Kf1 Qb2 17.Rd1 Rd1 18.Qd1 Qb5 19.Qe2 Qc6 20.f3 Qa8 21.Kf2 h6 (21...Qb8 22.Qc2–+) 22.Rc1 Qd5 (22...Ba3 23.Rd1–+) 23.Qc2 (23.Rc8 Bf8–/+) 23...Bd6 24.g3 Qh5 25.Kg2 Nd5 (25...Qg5 26.Qd3 Bc5 27.Qd8 Kh7 28.Qd3 g6 29.f4–+) 26.Qd3 Qg6 (26...Qg5 27.Rc8 Bf8 28.f4–+) 27.Qd4 (better is 27.Qg6!? fg6 28.e4–/+) 27...Bc7?? (better is 27...Be7–+) 28.Rc7= ½–½. Scheele,Marcus – Preuss,Manfred, Bochum Post op, 1991.

10.Qc6 Rb8 11.Qd7 Kd7 12.de6 fe6 13.Bf6 Bf6 =.

10.Qc6 Rb8 11.Bf6 Bf6 12.Qd7 Kd7 13.de6 fe6 =.

7.Ne5 Rb8!

8.Ba3 Ba3 9.Na3 b5–/+ 10.Nc6 ba4 11.Nd8 Kd8 12.c5 (12.Nb5!?=+) 12...Ne4 13.Nb5 (13.d4 Rb2 14.Rb1 Ra2 (14...Nf2?? 15.Rb2 Nh1 16.Rb8 Kd7 17.Rh8+–) 15.Rb8 Ke7 16.Rh8 Ra3–/+) 13...Nc5–+ 14.Na7 Rb2 15.Bb5 Ke7 16.Nc6 (better is 16.d4 Nd7 17.Bc6–+) 16...Kd6 17.Nd4 Bg6 18.Be2 (18.f4 Rb8–+) 18...Rhb8 19.f4 (19.Bd1 e5 20.Nf3 Nd3 21.Ke2 Nc5–+) 19...Rb1 20.Kf2 (20.Rb1 Rb1 (20...Bb1?! 21.Nb5 Kd7 22.Nc3–+) 21.Bd1 Nd3 22.Ke2 Nc1 23.Kf2 c5–+) 20...Ne4 21.Kf3 Nd2 (22.Kg4 R1b2–+) 0–1. Grehl,Siegfried – Gross,Wilhelm, corr, 1992.

8.Ba3 Ba3 9.Nc6 bc6 10.Na3 0–0 =+.

8.Ba3 Bd6 9.Nc6 bc6 10.Bd6 cd6 11.Qc6 Qd7 12.Qd7 Kd7 13.Nc3 –/+.

8.Nc6 bc6 9.Qc6 Qd7 10.Qd7 Kd7 11.Nc3 Be7 12.Bc1 c6 13.Be2 Ne4 14.Ne4 Be4 15.0–0 Rb6 (15...Bf6 16.d4–/+) 16.Re1 Rhb8 17.a4 Bc2 18.cd5 ed5 19.a5 Rb1 20.Rb1 Rb1 21.Kf1 Bb4 22.a6 Kc7 23.f3 Kb6 24.Kf2 c5 25.Rf1 (25.e4 de4 26.fe4 Be4–/+) 25...f5 (25...c4 26.h4–+) 26.d3 (26.g4!?–/+) 26...Ka6–+ 27.e4 d4 (better is 27...c4 28.dc4 Bc5 29.Kg3 de4 30.fe4 Be4–+) 28.e5? (better is 28.Bf4!?–/+) 28...c4!–+ 29.e6 (29.dc4 d3 Passed pawn) 29...Be7 (29...cd3 30.Bd2 Rf1 31.Bf1 Bd2 32.e7–+) 30.Bd2?? (30.Bf4 Rf1 31.Bf1 cd3 32.g4 fg4 33.fg4–+) 30...Rf1 31.Bf1 c3 32.Bc1 Bb3 33.Be2 (33.g4 fg4 34.fg4 Be6–+) 33...Be6 34.Bd1 (34.g4 Kb5 35.Bd1 fg4 36.fg4 a5–+) 34...Kb5 35.g4 fg4 36.fg4 Bd5 37.Bf4 a5 38.Be5 Bf6 39.Bd6 Bg5 40.Bf8 Be3 41.Ke2 g5 42.Bc2 a4 43.h3 Bg2 44.Ba3 Bh3 45.Kf3 Bf1 46.Ke4 Bg2 47.Kf5 Bd5 48.Kf6 Bb3 0–1. Tagirov,Kajum K (1925) – Idrisova,Roza (2085), Memorial Dautov, 2008.

8.Nc6 bc6 9.Qc6 Qd7 10.Qd7 Nd7 11.Bg7 Rg8 12.Bc3 Bd6 13.d3 Nc5 14.Nd2 Nd3 15.Ke2 Kd7 16.g4 Bg6 17.cd5 Be5 18.Be5= Ne5 19.de6 fe6 20.h3 Rb2 21.Ke1 Rd8 22.f4 Ke7 23.Rc1 Rdd2 24.fe5 Rbc2 25.Rc2 Rc2 26.a4 Ra2 27.Be2 Ra4 28.Kf2 Ra5 29.Rc1 Kd7 30.Rd1 Kc6 31.Bf3 Kb5 32.h4 Kb6 33.h5 Bc2 34.Rc1 Rc5 35.g5 a5 36.g6! Bg6 37.hg6 hg6 38.Rb1 Ka7 39.Ke2 g5 40.Kd3 Re5 41.Kd4 Rf5 42.Bg4 Rd5 43.Ke4 a4 44.Be6 Ra5 45.Bd5 a3 46.Kd4 g4 47.e4 1–0. Reuter,Alfred J – Gaiter,Warren D, IECC, 2000.

8.Nc6 bc6 9.Qc6 Qd7 10.Qd7 Nd7 11.Bg7?! Rg8! 12.Bc3 (12.Bd4? Bb1 13.Rb1 Bd2) 12...Bd6=+ (idea Rb1) (12...Bb1?! 13.Rb1 Bc3 14.Rb8 Nb8 15.dc3 dc4=+) 13.d3 Nc5! 14.e4 (14.cd5 Nd3!–/+) 14...de4 15.d4 Na4!–/+ 16.Ba5 e3 17.Nc3 ef2 18.Kf2 Rb2 19.Ke3?! (19.Be2!?) 19...Nc3 (19...Bh2!? (idea Rg3)) 20.Bc3 Rc2 21.Be1 c5 22.d5 Be5–+ 23.Rd1 Ra2 24.h3 Bc2 25.Rd2 Ra3 26.Ke2 Bb3 27.de6 (27.Ke3 Bc4 28.Ke4 Bd6 29.Bc4 f5; 27.Kd3 ed5 28.cd5 c4) 27...fe6 28.Kd3 Bd4! 29.Ke4 Bc2 30.Bd3 (30.Rc2 Re3 31.Kf4 Rf8! (idea Re1)) 30...Ba4 31.Kf3 Bc6–+. W Labahn – Gross, corr SOK–92–87 1992 (Gross).

8.Nc6 bc6 9.Qc6 Nd7?! 10.cd5!?+= (10.Nc3 unclear; 10.Bg7 Rg8). Gross.

8.Nc6 Qd7?? 9.Qa7 +–. Gross.

8.cd5 Qd5 9.Nc6 bc6 10.Bf6 gf6 =.

7.Ne5 Qd6

8.a3 Bb1 9.Rb1 Ba3 10.Nc6 Bb2 11.Nd4 Qd7 12.Qd7 Kd7 13.Rb2 Rhb8 +/–.

8.a3+/– Bc5 9.d4 0–0 10.dc5+– Qc5 11.Nc6 bc6 12.Qb4 (12.Nd2 Rfb8 13.Bd4 Qd6 14.Bf6 gf6+–) 12...Nd7 (12...Qb4 13.ab4 Rfb8 14.Bc3+/–) 13.Bd4 (13.Qc5!? Nc5 14.Nd2 Nd3 15.Bd3 Bd3+–) 13...Qb4+/– 14.ab4 a5? (better is 14...Rfb8!? 15.Bc3 a5+/–) 15.ba5+– Bb1 16.Rb1 Ra5 17.Be2 (17.Rb7 c5 18.Bc3 Ra3 19.Rc7 Rd8+/–) 17...c5 18.Bc3 Ra2 19.Ra1 (19.h4 Rc2 20.Ba5 dc4 21.Bc7 c3+–) 19...Rc2 (19...Ra1!? 20.Ba1 Ra8+/–) 20.Bd2+– Rb8 21.Bd3 Rcb2 (Black gets the initiative) 22.Bc3 R2b3 (22...dc4 23.Bb2 (< 23.Bc4 Rc2–/+) 23...cd3 24.Ra2+–) 23.Kd2 Nb6 24.Rhc1 f6 25.f4 dc4+/– 26.Bc2 Rd8 27.Bd4?? Rb4–+ 28.Kc3 Nd5 29.Kd2 cd4 30.ed4 Nf4 31.g3 Nd5 32.Re1 Rb6 33.Ra4 Nb4 34.Be4 c5 35.Kc3 cd4 36.Kc4 Na6 37.g4 g6 38.h4 f5 (39.gf5 gf5–+) 0–1. Chirpii,Alexandru – Craciun,Gheorghe (2145), Centrocoop Sept op–A, 1998.

8.a3 Bc5 9.d4+/– Bb6 10.c5 Ba5 (10...Bc5 11.dc5 Qc5 12.Nc6 bc6 13.Nd2+–) 11.Nc3 (better is 11.Kd1 Qd8 12.Nc6 bc6 13.Qa5+–) 11...Bc3+= 12.Bc3 (White is in command) 12...Qd8 13.Nc6 (13.Bb5 a6 14.Bc6 bc6 15.Qc6 Kf8+=) 13...bc6 (better is 13...Qd7!?=) 14.Qc6+/– Ke7 15.Ba5 Ne8 16.Bb5 Qc8 (16...Rb8 17.0–0+/–) 17.Ba6 Qd8 18.Bb7 Rb8 19.Qa6 Qd7 (19...Be4 20.f3 Bd3 21.Qa7+– (21.Qd3?! Rb7 22.0–0 Qa8+/–)) 20.Qa7+– Rd8?? (better is 20...Nd6 21.Bc6! Qc6 22.Bc7 Rb7 23.Bd6 Kd7+–) 21.c6 (21...Ra8 22.Qa8+– (22.cd7?! Ra7 23.de8N Re8+–; < 22.Ba8 Qd8+–)) 1–0. Bott,Hans Joachim – Kuekelheim,Torsten, Baden–ch AT Ladenburg, 1992.

8.Nc6 bc6 9.a3 Bb1 10.Rb1 Bd2 (10...Bc5 11.d4 Bb6 12.c5+–) 11.Kd2 dc4 (11...Ne4 12.Ke1 Nc5+–) 12.Ke1 Rd8 13.Rd1 (13.Bc4!? Ne4 14.Be2 Nc5+–) 13...Qd1 14.Qd1 Rd1 15.Kd1 Ne4 16.Ke1 (16.Bg7 Rg8 17.Rg1 Rg7–/+) 16...0–0 (16...c3 17.Bc1+/–) 17.f3 (17.Bc4 Rb8 18.Bc1 Rb1+–) 17...Nd6 (17...Rb8 18.Bd4 (18.fe4?! Rb2 19.Kd1 Ra2=+) 18...Rb1 19.Ke2+=) 18.Kd2 Rb8 19.Kc2 Rb3 (19...Nf5 20.Bc1+–) 20.e4 Rb8 (20...Rb7 21.Bd4+–) 21.e5 Nf5 22.Bc1 Rb5 23.g4 (better is 23.f4!? Nd4 24.Kc3+–) 23...Nd4+/– 24.Kc3 Nf3 25.Bc4 (< 25.Kc4 Ne5 26.Kc3 Rc5 27.Kd2 Ng4=+) 25...Re5 26.Bf4 (26.h3 Kf8+=) 26...Re4 27.Bc7 Rg4 (27...Re3 28.Kb4 h5 29.gh5 Nd2+/–) 28.Be2 (28.Rd1!? h5 29.Be2+=) 28...Rg1?? (better is 28...Re4 29.Rd1 Re3 30.Kb4 c5 31.Kc5 g5 32.Bf3 Rf3+=) 29.Bf3+– (29...Rh1 30.Bh1+–) 1–0. Batton,Thomas – Dyroff,Bjoern, Kirchheim rapid, 1990.

8.Nc6 bc6 9.a3 Bc5 10.d4 Bb6 11.c5 Bc5 12.dc5 Qc5 13.Nd2 Nd7 14.Rc1 Qb6 (14...Nb6 15.Qb3 (15.Rc5?! Na4 16.Bg7 Rg8+/–; 15.Qc6?! Qc6 16.Rc6 Kd7+–) 15...Qe7 16.Bg7+–) 15.Bg7 Rg8 16.Rc6 Qb2 (16...Qb8 17.Be5! Kf8+–) 1–0. Trkn – guest3331, ICC, 2004.

8.cd5 ed5 9.a3 =+.

6.Nd4 c6

7.Nf5 ef5 8.Qb3 Qe7 9.Be2 (9.cd5 cd5 10.a3 Bc5+=) 9...0–0+= 10.0–0 Bd6 (10...dc4 11.Bc4 Ne4 12.d3+=) 11.Nc3 (11.Bf6!? Qf6 12.Qb7=) 11...dc4–/+ 12.Bc4 Nbd7 13.d4 Nb6 14.Bd3 g6 15.a4 Rad8 16.a5 Nbd5 17.Rab1 Rd7 18.Nd5 Nd5 19.Bc4 Nf6 (19...f4 20.Bd5 cd5 21.ef4–/+) 20.f3 Re8 21.Rfe1 h5 22.Bc3 Kh7 23.Qb2 Bc7 (23...Nd5 24.e4 Ba3 25.Qc2 Nc3 26.Qc3+=) 24.Bd3 (24.Qf2!?=) 24...Qd6 25.f4 Ne4 26.Be4 Re4 27.Qb7 Qe6 (27...Ba5 28.Qb2 Bb6 29.Bb4–/+) 28.Qb3 (28.Qc8 Re7 (28...Re3?? 29.d5 Re1 30.Re1+–) 29.Qa8 Qd5+= (29...Re3 30.d5 Re8 31.de6 Re1 32.Be1 Ra8 33.Rb7 Bf4 34.Bf2+/–)) 28...Re3 (better is 28...Rd5!?+=) 29.Qe6+= Re6 30.Re6 fe6 31.Rb7 Kg8? (better is 31...a6!?+=) 32.Ra7+– Kf7? (better is 32...Rf7 33.a6 Bb6 34.Ra8 Kg7+–) 33.a6 Ke7 34.Rb7 Bd6 (34...Kd6 35.a7 Rd8+–) 35.Rd7 (35.Rd7 Kd7 36.a7 Bf4 37.a8Q Be3 38.Kh1+–) 1–0. ferminkatcho (1670) – palefajke (1750), kurnik, 2014.

7.Nf5 ef5 8.Qf3 g6 9.cd5 cd5 10.Bb5 Nc6 11.0–0 0–0 12.Qf4 Bd6 13.Qa4 Ng4 (13...a6 14.Bc6 bc6 15.Qc6 Bh2 16.Kh2 Qb8 17.Kg1 Qb2 18.Nc3+=) 14.h3= Be5 15.d4 Bd6?? (better is 15...Bh2 16.Kh1 Qh4=) 16.hg4+– Qh4 17.f4 fg4 18.Bc6?? (better is 18.Nd2+/–) 18...g3–/+ 19.Re1 (better is 19.Rc1!? Qh2 20.Kf1 Qh1 21.Ke2 Qg2 22.Kd3 Qb2 23.Nc3 bc6 24.Rab1–+) 19...Qh2–+ 20.Kf1 Qh1 21.Ke2 Qg2 22.Kd1? (better is 22.Kd3 Qb2 23.Bb7 Qa1 24.Ba8 Ra8 25.f5–+) 22...Qb2 (22...bc6?! 23.Nd2=) 23.Nd2 Qa1 (23...bc6?! 24.Rb1 Qa3 25.Qa3 Ba3 26.Rb3–+) 24.Ke2 Qb2 (24...Qc3 25.Bd5 Rad8 26.Rb1 Bf4 27.Rb3–+) 25.Bd5 (25.Rb1 Qb1! 26.Nb1 bc6 27.Qc6–+) 25...Bb4 26.Rd1 g2! 27.Bg2 Rac8 28.Qb3 (28.a3 Qa3 29.Qa3 Ba3 30.Bb7 Rc7–+) 28...Qb3 (28...Rc2 29.Qb2 Rb2 30.Bd5–+) 29.ab3 b6 30.Nc4 b5 31.Ne5 Rc2 32.Kf3 Rb2 33.Rd3 a5 34.f5 (34.Nc6 Be1 35.Rd1 Bh4–+) 34...gf5 35.Bh3 a4 36.ba4 ba4 37.Bf5 a3 38.Nc4 (38.Rd1 a2–+) 38...a2 39.Nb2 (39.Rd1 Rh2 40.Bb1 f5 41.Ba2 Ra2–+) 39...a1Q 40.Nc4 (40.Nd1–+) 40...Qf1 41.Kg3 (41.Ke4–+) 41...Qf5 0–1. ferminkatcho (1675) – vajnstejn (1805), kurnik, 2014.

6.cd5 Qd5

7.Qa4 Nc6 8.Bb5 =.

7.Nc3 Bc3 8.Bc3 Nc6 9.Qb3 0–0–0 10.Bc4 Qe4 (10...Qd6 11.d4+=) 11.0–0 Qc2 (11...Qg4 12.Rfc1=) 12.Qa3= Nd5 13.Rac1 Qe4 14.d3 (14.Bg7 Rhg8 15.Bd5 A) 15...ed5 16.Rc6 Rde8 17.Rfc1 bc6 18.Qa6 Kb8 19.Bd4 (19.Qc6?! Rc8+/–) 19...Rg2 20.Kh1 Rg1 21.Kg1 Rg8 22.Kf1 Qd3 23.Qd3 Bd3 24.Ke1+–; B) 15...Rd5 16.Rc6 bc6–+) 14...Qg4 15.Ne5 Nc3 16.Ng4 (16.Ng4 Ne2 17.Kh1 Nc1 18.Rc1 (worse is 18.Qc1 Bg4 19.Qb2 Na5+–) 18...Bg4 19.Bb5+–; 16.Qc3?! Ne5 17.Qe5 c6=) 1–0. ventil – trosecnik, kurnik, 2014.

5.c4 Nc6

6.Qa4 dc4 7.Bc4 Nd7 8.Nd4 –/+.

6.Qa4 Be7 7.c5 (7.Nd4 0–0 8.Nf5 ef5+=) 7...0–0 8.Be2 (8.b5!? Nb8 9.d4=) 8...a5–/+ 9.b5 Nb4 10.Nd4 Nd3 (10...Nd7!? 11.0–0 Nc5–+) 11.Bd3+= Bd3 12.c6 b6 13.Nf3 Ne4 14.Bd4 Nc5 15.Bc5 bc5 16.Ne5 Bf5 17.Nd7 Re8 18.Nc3 Bd6 19.0–0 e5 (better is 19...Bd3!? 20.Rfc1 c4=) 20.Nd5+/– Bd7 21.cd7 Qd7 22.e4 f5 23.Qc4 Kh8 24.f3 f4 25.Rab1 White intends b6 25...h5 26.a4 Re6 27.b6 c6 28.Nc7 Bc7 29.bc7 Ree8 30.Qc5 Qc7 31.Rb6 Qd7 32.Qc6 Qd2 33.Qg6 Rab8 34.Rb8 Qd4 35.Kh1 Rb8 36.h3 Rb6 37.Qe8+/– Kh7 38.Qh5 Rh6 39.Qf5 Rg6 40.Rb1 Qf2 41.Qh5 Rh6= 42.Qf5 Rg6 43.Rg1 Qd4 44.Kh2 Kh6 45.Qf8 Kh7 46.Qe8 Rh6 47.Rc1 Qf2 48.Qd7 Rg6 49.Rg1 Qg3 50.Kh1 Qf2 51.Qf5 Qd4+/– 52.Rb1 Qf2= 53.Rg1 Qd4 54.Kh2 Kh6 55.Qc8 Kh7 56.Qc2 Rb6 57.Rd1 Qb4 58.Qc8 Rg6?? 59.Rd8 Rg5 60.Rh8 Kg6 1–0. Hecimovic,Ivan (2275) – Zarko,Ivica (2035), Velika Gorica op 4th, 2004.

6.b5? Nb4! 7.d3 dc4 8.a3 Nd3 0–1. Woschkat – Mangone, 1996.

6.c5 a6 7.a3+= Be7 8.Be2 h6 9.0–0 0–0 10.d3 Nd7 (10...b6 11.cb6 cb6 12.Nbd2+=) 11.Nbd2 Bf6 12.d4 e5 13.de5 Nce5 (13...Nde5 14.Ne5 Ne5 15.Qb3=) 14.Ne5 (14.Nd4 Bd3=) 14...Ne5 15.Qb3 c6 16.Rad1 Nd7 (16...Qe7 17.Nf3=) 17.Nf3= Bb2 18.Qb2 Qf6 (18...Re8 19.Nd4 Qf6 20.Qc3=) 19.Qf6 Nf6 20.Nd4 Bg4 21.Bg4 Ng4 22.a4 Ne5 23.a5 (23.Nf5 Rae8=) 23...g6 24.h4 h5 25.g3 f5 26.Ne6 Rf7 27.Ng5 Re7 28.Kg2 Kg7 29.Rd4 Rae8 30.Rfd1 Nf7 31.Nh3 Ne5 32.Ng5 Nf7 33.Nh3 ½–½. Tagirov,Kajum K (1865) – Gerner,Mikhail, ChampionshipRespublik Bashkortostan, 2010.

6.c5 Nb4 7.Qa4 Nc6 8.Bb5 +=.

6.cd5 Nb4 7.Qa4 Qd7 8.Qd7 Nd7 +=.

6.a3 a6

7.c5 Be7 8.Nd4 (8.Be2 0–0=) 8...Nd4+= 9.Bd4 0–0 10.Bf6 (10.Be2!?+=) 10...Bf6–/+ (10...gf6?! 11.d4+=) 11.d4 e5 12.Bd3 (12.de5 Be5 13.Ra2 a5–/+) 12...Bd3–+ 13.Qd3 ed4 14.Ra2 de3 15.fe3 d4 (15...a5 16.Rd2–+) 16.e4–/+ Bh4 17.g3 Bg5 18.0–0 (18.Rc2 Re8 19.0–0 Be3 20.Kg2 Qd7–+) 18...Be3 19.Kg2 a5 20.Rb2 ab4 21.ab4 (21.Rb4 Qe7–/+) 21...Qe7–+ 22.Nd2 Rfe8 23.Re1 h6 24.Nf1 Ra3 25.Qa3 Qe4 26.Kh3 Re5 27.g4 h5 28.Ne3 (28.Qa8 Kh7 29.Qc8–+) 28...Qf3 0–1. Champion,William (1855) – Tkachenko,Oleg (1845), IECG, 2004.

7.cd5 ed5 8.Be2 =.

6.a3 dc4

7.Bc4 a6 8.0–0 =.

7.Bc4 a6 8.d4 Be7 (8...Bd6 9.0–0=) 9.Nc3 b5 (9...Bd6 10.0–0=) 10.Bb3 0–0 11.d5 ed5 12.Nd5 Be6 13.Nf6 Bf6 14.Qd8 Rad8 15.Bf6 gf6 16.Be6 (16.Bc2 Rfe8+=) 16...fe6 17.Rc1 Rd6 18.Ke2 Rf7 (18...Kf7 19.Rc2 Rg8 20.g3+=) 19.Rc3 (19.Rc5 Nd8+=) 19...Nd8+= 20.Rhc1 c6 (20...Rdd7 21.e4+=) 21.Nd2 f5 22.Nb3 Rfd7 23.Nc5 Ra7 24.Rd1 (24.h4 a5+=) 24...Rd1 25.Kd1 Kf7 26.Rd3 Ke7 27.Ke2 (27.e4 a5+=) 27...Nf7 28.f4 (28.e4 a5+=) 28...Nd6 29.Kf2 (29.Kf3 Nc4+=) 29...h5 (29...a5 30.Kf3 ab4 31.ab4=) 30.Kg3 Ne8 31.e4 fe4 32.Ne4 Nf6 (32...a5 33.Nc5+=) 33.Nc5 ½–½. Kilpatrick,Robert – Gordon,Kent, corr SCCA, 1979.

7.Bc4 Bd3

8.Qb3 Be4 9.d4 Bf3 10.gf3 Ne7 11.Nc3 c6 12.e4 Qc7 (12...Qd4? 13.Nd5 Qb2 14.Nc7 (< 14.Qb2 ed5 15.Bd3 Ng6+–) 14...Kd7 15.Qb2 Kc7 16.b5+–) 13.Ne2 Rd8 14.Rd1 Ng6 15.Bc1 b5 16.Bd3 Be7 17.Bb1 (17.Qc3 Nh4=) 17...0–0 18.f4 Rfe8 19.Rg1 Rd7 20.e5 Nd5 21.f5 ef5 22.Bf5 Rdd8 23.Kf1 a5 24.Be4 (24.Nc3 a4 25.Qc2 Qb7 26.Nd5 cd5+= (< 26...Rd5 27.Be3+–)) 24...ab4=+ 25.ab4 Nb4 26.Rg6? (better is 26.f4!? Nd5 27.f5 Ne5 28.de5 Qe5 29.Bd5 cd5 30.Bf4=+) 26...hg6–/+ 27.Nf4 Qd7 (27...g5 28.Ne6 fe6 29.Qe6 Kf8 30.Qf5 Bf6 31.ef6 gf6=) 28.e6=+ fe6 29.Bg6 Nd5 30.Nd5? (30.Qh3 Nf6=+) 30...ed5–/+ (30...Qd5?! 31.Qh3 e5 32.Qh5 ed4 33.Be8 Qh5 34.Bh5=; 30...cd5?? 31.Qh3 Bb4 32.Rd3+–) 31.Qf3 Bf6 (better is 31...Qe6 32.Qh5 Bb4=+) 32.Qh5+/– Qe6 33.Qh7 (33.Bd2!? Qe2 34.Qe2 Re2 35.Ke2 Bd4 36.h4+/–) 33...Kf8+= 34.Ba3 Be7 (34...b4 35.Bb4 Be7+=) 35.Qh8= Qg8 36.Qh3 Ba3 (36...Qf7 37.Be7 Re7 38.Bf7 Kf7 39.Qf5 Kg8+–) 37.Qa3 Re7 38.Re1 (38...Rde8 39.Re7 Qf7 40.Rf7 Kg8 41.Qh3 Re1 42.Ke1 c5 43.Qc8#) 1–0. Torassa,Giuseppe – Coristo,Giovanni, corr ITA–ch45, 1986.

8.Qb3 Be4 9.Be2 Bd5 10.Qc2 Bd6 11.Nc3 Bf3 12.Bf3 +=.

8.Qb3 Be4 9.Be2 Bd6 10.0–0 (10.Nc3 Bf5=) 10...a5 (10...0–0 11.Nc3=) 11.b5 Na7 (11...a4 12.Qd1 Nb8 13.Nc3+=) 12.Nc3+= b6? (better is 12...Bg6!?+=) 13.Ne4+– Ne4 14.Bg7 Rg8 15.Bb2 (15.Bd4 c5 16.bc6 Nc6+–) 15...h5 (15...c6 16.Qc2 Nc5 17.d4+– (< 17.Qh7 Rg6+–)) 16.Rfc1 h4 17.Qc4 h3? (17...Rg4 18.h3 Nf2 19.hg4 Bg3+–) 18.Qe4 hg2 (18...Rg2 19.Kh1+–) 19.d4 Kd7 20.Ne5 Be5 21.de5 Qg5 22.Qb7 Rac8 23.Qa7 Rh8 24.Rc7! Rc7 25.Rd1 (25...Ke7 26.Qc7 Kf8 27.Qb6+–) 1–0. Harabor,M – Liszka,Tom, corr APCT, 1990.

8.Qb3 Be4 9.Be2 Be7 (9...Bd5 10.Qc2+=) 10.0–0 0–0 (10...a6 11.d3 Bg6 12.Nh4=) 11.d3+= Bg6 12.b5 Nb8 (12...Na5 13.Qa4 c5 14.Ne5+=) 13.Ne5 Qd5 14.Qd5 Nd5 (14...ed5 15.Ng6 fg6 16.Nc3+=) 15.Ng6 fg6 16.Bg4 Kf7 17.e4 (17.Nc3 Nc3 18.Bc3 a6+=) 17...Nb6 (17...Nf6 18.Bf3+=) 18.Rc1 (18.Nd2 Na4 19.Be5 Bf6+=) 18...c6 19.Nc3 (19.a4 cb5 20.ab5 Rd8+=) 19...Bf6 20.a4 cb5 21.ab5 N8d7 (21...Rd8 22.Be2=) 22.Ra2 (22.Nd1 a6+=) 22...Rfc8 23.Be2 a6 (23...Rc5 24.Kf1=) 24.ba6 ba6 25.f4 (25.d4 Bd4 26.Ra6 Nf6=) 25...Bd4 26.Kh1 Be3 (26...a5 27.Nb5 Bb2 28.Rc8 Nc8 29.Rb2=) 27.Rf1 Bd4 28.Rc1 (28.Na4 Rc2 29.Rfa1 Bb2 (worse is 29...Re2 30.Bd4 Ra2 31.Ra2 Na4 32.Ra4+=) 30.Rb2 Rb2 31.Nb2 a5=) 28...Be3 (28...a5 29.Nb5 Bb2 30.Rc8 Nc8 31.Rb2=) 29.Rf1 Bd4 30.Rc1 (30.Na4 Rc2 31.Rfa1 Be3 (worse is 31...Re2 32.Bd4 Ra2 33.Ra2 Na4 34.Ra4+=) 32.Nb6 Nb6=) 30...e5 (30...a5!?+=) 31.fe5= Ne5 (31...Ke6 32.Ra5 Ne5 33.g3=) 32.Rf1+= Kg8 (32...Ke6 33.Na4 Na4 34.Bd4+/–) 33.Nd5 (33.Na4 Na4 34.Bd4 Nc3+/–) 33...Nd5 34.Bd4 (34.ed5 Rc2 35.Bd4 Ra2–/+) 34...Nb4 (34...Nc6 35.Bg4 (35.ed5?! Nd4 36.Bg4 Rc3=) 35...Re8 36.Be6 (worse is 36.ed5 Nd4 37.Ra4 Nf5=) 36...Re6 37.ed5+/–) 35.Rd2 (35.Rb2 Nbc6 36.Be5 Ne5+/–) 35...Nec6 (35...Nf7 36.Bd1 Rc1 37.Rdf2+/–) 36.Bc5 a5 37.d4 a4 (better is 37...Re8!? 38.e5 a4+/–) 38.d5+– a3? (38...Na6 39.Ba6 Ra6 40.dc6 Rac6+–) 39.dc6 Nc6 40.Ra2 (40.Ra2 h6 41.Bc4 Kh7 42.Ba3+–) 1–0. marekt – jbmac, gameknot.com, 2001.

8.Qb3 Bc4

9.Qc4 a5 10.b5 Ne7 11.Bf6 gf6 12.d4 +=.

9.Qc4 a6 10.0–0 =.

9.Qc4 a6 10.Nc3 Qd6 11.Rc1 Ne5 (11...Rd8!? 12.0–0 Qd3 13.Qd3 Rd3=) 12.Ne5+= Qe5 13.0–0 Bd6 14.f4 Qh5 15.Ne4 b5? (15...Ng4 16.h3 Nh6 17.Bg7 Qg6 18.Bh8 Be7+–) 16.Qc6+– Ke7 17.Bf6 (17.Nd6?! cd6 18.Qb7 Nd7+–) 17...gf6 18.Nd6 cd6 (18...Ra7 19.Rc5 Qe2 20.Ne4+–) 19.Qb7 Kf8 20.Qa8 Kg7 21.Rc8 (better is 21.Qa6!? Rd8+–) 21...Rc8 22.Qc8 Qe2 23.Qc1 h5 (23...f5 24.Qc3 Kg6 25.Rc1+–) 24.Re1 Qg4 25.Qd1 (25.Qc8 Qh4 26.Rc1 d5+–) 25...Qf5 (25...Qd1 26.Rd1 d5 27.Rc1+–) 26.d4 d5 27.h3 (27.Qf3 Qg4+–) 27...Kh6 (27...h4 28.Qf3+–) 28.Qb1 (28.Qf3 Kg7+–) 28...Qb1 29.Rb1 Kg6 30.g4 (30.Rc1 h4+–) 30...f5 (30...hg4 31.hg4 f5 32.g5+–) 31.gh5 Kh5 32.Kf2 Kg6 (32...Kh4 33.Rh1+–) 33.Rg1 Kf6 (33...Kh5 34.Rg8+–) 34.h4 Ke7 35.h5 (35...a5 36.ba5+–) 1–0. Ziese,Gerhard – Fiedler, corr SOK–89–37, 1989.

9.Qc4 Bd6 10.Qb5 Rb8 +=.

9.Qc4 Bd6 10.Nc3 0–0 11.d4 Ne7 (11...a5 12.b5 Na7 13.e4+=) 12.0–0 (12.e4 Bf4+=) 12...Ned5 13.Na4 (13.Rfe1 a5=) 13...Nb6 (13...a5 14.Nc5 ab4 15.ab4=) 14.Nb6 ab6 15.Rfd1 (15.Qd3 Nd5=) 15...Qe7 (15...Qd7 16.Qd3=) 16.Qc2+= b5 17.e4 Bf4 18.Bc1 Bc1 19.Rdc1 c6 20.Re1 h6 (20...Ra4 21.Qc3=) 21.Re3 Rfd8 22.Rd1 Nd7 23.Rdd3 (23.Red3 Nb6=) 23...e5 (23...Nb6 24.Ne5=) 24.Re1 (24.d5 Nb6 25.dc6 Rd3 26.Rd3 bc6=) 24...ed4= 25.Nd4 g6 26.f4 (26.Nf3 Ne5 27.Rd8 Rd8=) 26...Nb6 27.Qc3 Qf8 (27...Kh7 28.Nc2=) 28.e5 (28.Ra1 Nc4=) 28...Nc4 29.Nc2 Qe7 (29...Rd3 30.Qd3 Qd8 31.Rd1 Qd3 32.Rd3=) 30.Red1 (30.f5 Rd3 31.Qd3 gf5 32.Qf5 Qg5= (32...Na3? 33.Ra1+–)) 30...h5 (30...g5 31.Nd4 Qc7 32.Qc1+=) 31.Rd8 Rd8 32.Rd3 h4 33.a4 g5 34.ab5 cb5 35.Nd4 gf4 (35...Qc7!?+=) 36.Nf5+/– Qg5 37.Rd8 Qd8 38.e6! f6 (38...fe6 39.Qg7 Mate attack) 39.e7 (better is 39.Kf1!?+/–) 39...Qd1 40.Kf2 Kf7 41.e8Q Ke8 42.Qf6 Qd2 43.Kf3 Qb4 44.Nh4 Qe1 (44...Nd2 45.Ke2 Nb3 46.Kf3=) 45.Kf4 Qe3 46.Kf5 (46.Kg4 Qe4 47.Kg5 b4=) 46...Qc5 (46...Qf2 47.Nf3=) 47.Kg4 b4 48.Qh8 Kd7 49.Qg7 (49.Qh7 Kc6=) 49...Kc6 50.Nf3 Qd5 51.Kf4 Kb5 (51...Qd6 52.Kg5=) 52.Qd4 (52.h4!?=) 52...Qf7+= 53.Kg3 b3 54.Nd2 (54.Qe4 Qc7 55.Kf2 Qb6 56.Kg3 b2–/+) 54...Nd2 (54...Qg6 55.Kf2 Nd2 56.Qd2 Qf6 57.Ke2 Qe5 58.Kd1 Qh2 59.Qd5 Ka6 60.Kd2=) 55.Qd2 Qc7 56.Kh3 Qe5 57.Qd7 Kc4 58.Qg4 Qd4 59.Qc8 Kd3 60.Qb7 b2 61.g3 Ke3 (61...Qh8 62.Kg4 Qh2 63.Qb3 Kd4 64.Qb4 Kd5 65.Qb5 Ke6 66.Qc6 Ke5 67.Qc5 Kf6 68.Qd6 Kf7 69.Qd7 Kf8 70.Qd8 Kg7 71.Qe7 Kh8 72.Qe8 Kh7 73.Qf7 Kh6 74.Qe6 Kg7 75.Qe7 Kg6 76.Qe6 Kg7 77.Qe7=) 62.Qb3 Kd2 63.Qb7 Qe5 64.Qg2 Qe2 65.Qd5 Ke1 66.Qb7 Kf1 67.Qh1 Kf2 68.Qg2 Ke3 69.Qg1 Qf2 (69...Kd2 70.Qd4 Ke1–+) 70.Qb1 Kd4 With the decisive threat g4 71.Qd1 Ke5 72.g4 Qe3 73.Kh4 Qe4 74.Qb3 (74.Qg1 b1Q 75.Qc5 Kf4 76.Qf2 Qf3 77.Qd4 Qbe4 78.Qf6 Ke3 79.Qb6 Ke2 80.Qb2 Kf1 81.Qc1 Kg2 82.Qb2 Kg1 83.Qc1 Kh2 84.Qd2 Kg1 85.Qc1 Kg2 86.Qb2 Qf2 87.Qf2 Kf2 88.Kh5 Kf3 89.Kh6 Kg4 90.Kg7 Kf5 91.Kf7 Qb7 92.Ke8 Ke6 93.Kd8 Qd7) 74...b1Q 75.Qc3 Qd4 76.Qc7 (76.Qd4 Kd4 77.Kg5 Ke5 78.Kh6 Qb6 79.Kh7 Kf6 80.Kh6 Qe3 81.Kh7 Qg5 82.h4 Qg7) 76...Kf6 77.Qc6 Kg7 78.Qc7 Kg6 79.Qc6 Qf6 80.Qf6 Kf6 81.Kg3 Qe1 82.Kf4 Qf2 (82...Qf2 83.Ke4 Qh2 84.g5 Kg5–+) 0–1. Rajala,Olavi (1860) – Saharinen,Petri (1950), Serveri, 2007.

9.Qc4 Bd6 10.d3 0–0 11.Nbd2 (11.0–0 a5 12.b5 Nb8+=) 11...a6 (11...a5 12.b5 Nb8 13.0–0=) 12.0–0= h6 13.e4 e5 14.Nh4 (14.d4 ed4 15.Nd4 Nd4 16.Bd4 Bf4+=) 14...Ne7 (14...a5 15.b5 Nb8 16.d4 ed4 17.Qd4+=) 15.h3 (15.d4 ed4 16.Nhf3 c5 17.bc5 b5 18.Qd4 Bf4+–) 15...b5 16.Qc2 Rc8 17.Nb3 Nd7 18.d4 ed4 19.Bd4 (< 19.Nd4 c5 20.bc5 Nc5=+) 19...Ne5 20.Rfd1 N7c6 21.Nf5 Qg5 (21...Nd4 22.Rd4 Qg5 A) < 23.Nd6 Nf3 (23...cd6?! 24.Qd1=) 24.Kh1 Nd4 25.Nd4 cd6–+; B) 23.Rd5=) 22.Be3 Qg6 23.f4 (23.Nc5 Bc5 24.Bc5 Rfd8+=) 23...Nc4= 24.Bc5 Rfe8 25.e5 (< 25.Nd6 cd6 26.f5 Qg3–/+) 25...Bf8 (25...Bc5 26.Nc5 Rcd8 27.Rd8 Rd8 28.a4=) 26.Rd7 (26.Bf8 Rf8 27.Nc5 Rfd8+=) 26...Qe6 27.Bf8 (27.Rad1 Bd6 28.Nd6 cd6 29.R7d6 Nd6 30.Rd6 Qc4=+) 27...Kf8 28.Nc5+= Qg6 29.g4 Ne7 30.Kh2 h5 31.Qd3 hg4 32.Re7 Re7= 33.Rg1? Qc6?? 34.Rg4= g6 35.Rh4+/– gf5 36.Rh8 Kg7 37.Rc8 Nb6 38.Rd8 Nc4 39.Qf5 Re8?? 40.Qf6! Qf6 41.ef6 (41...Kf6 42.Re8 Na3 43.Na6+–) 1–0. Nebe,Lutz – Frenzel,Lothar, corr SOK–89–40, 1989.

9.Qc4 Bd6 10.d4 0–0 11.Nc3 a6 (11...Re8 12.0–0=) 12.0–0 Nd5 13.Rac1 (13.e4 Nb6 14.Qe2 e5 15.de5 Ne5 16.Ne5 Be5+=) 13...Re8 (13...Qd7 14.Rfd1=) 14.Rfd1 h6 (14...Nb6 15.Qd3+=) 15.Ne4 Rc8 (15...Qe7 16.Nc5 Bc5 17.dc5+=) 16.Nc5 Bc5 17.dc5 Qe7 18.h4 (18.Nd4 Nd4 19.Qd4 Qg5+=) 18...f5 (18...Rcd8 19.e4 Nf4 20.g3=) 19.g4 (19.e4 fe4 20.Qe4 Rcd8+=) 19...fg4 (19...Qf7 20.g5=) 20.Qg4 Rf8 21.Kf1 (21.Ne5 Ne5 22.Be5 Qf7=) 21...Qf7 (21...Ne3 22.fe3 Rf3 23.Qf3+=) 22.Ke2= e5 23.Rg1 Rcd8 (23...Rce8 24.Rcd1 Rd8 25.Qe4=) 24.Rg2 Rd7 25.Nd2 (25.Ne5 Ne5 26.Be5 Re7+/–) 25...Nf6 26.Qc4 Qc4 (26...Rd5 27.e4 Rd7 28.Qf7 Rff7 29.Nc4=) 27.Nc4+= Rd5 (27...Re8 28.Rg6+=) 28.Rd1 (28.Rcg1 Rf7+/–) 28...Rd1 (28...Re8 29.Rdg1 Nh5 30.Rg6+=) 29.Kd1+/– e4 (29...Re8 30.f4 Nd7 31.e4+/–) 30.Ke2 (30.Nd2 Kf7 31.Bf6 gf6 32.Ne4 Rd8 33.Ke2 Ne5+/–) 30...Rf7 (better is 30...Kf7!?+=) 31.Nd2+/– Ne7 32.Bf6 Rf6 33.Ne4 Re6 34.Kd3 Nf5 (34...Ng6 35.h5 Ne5 36.Kc3+–) 35.Rh2 g6 36.Rh3 Kg7 37.f4 Re7 38.h5 gh5 (38...Rd7 39.Ke2+–) 39.Rh5 Kg6 (39...Rd7 40.Ke2 Rd5 41.Rh3+–) 40.Rh3 Rd7 41.Ke2 Re7 42.Nd2 h5 43.e4 Nh6 (43...Nd4 44.Kf2+–) 44.Rd3 (44.c6 b6+–) 44...Ng4 45.Rd5 (45.c6 b6+–) 45...Kh6 (45...Nf6 46.Rg5 Kh6 47.Ke3+–) 46.Rg5 (46.c6 bc6 47.Rc5 Re6+–) 46...Rf7 (46...Nf6 47.Ke3+–) 47.Kf3 Rd7 48.Rd5 Rg7 (48...Re7 49.c6 bc6 50.Ra5+–) 49.Rd8 (49.e5 Kg6+–) 49...Nh2 50.Kf2 (50.Ke2 Rg2 51.Ke1 Ng4+–) 50...Rf7 (50...Ng4 51.Ke2+–) 51.f5 (51.Kg3 Ng4+–) 51...Kg5 (51...Rg7+–) 52.Kg3 Ng4 53.Nf3 Kh6 (53...Kf6 54.Kf4 Re7 55.c6 bc6 56.Ra8+–) 54.Kf4 Nf6 (54...Re7 55.Ng5 Kg7 56.Ne6 Kh7 57.e5+–) 55.e5 (better is 55.Ng5 Rd7 56.Rf8 Nh7+–) 55...Rd7 56.Rd7 Nd7 57.Nh4 (57.f6 a5 58.Kf5 ab4 59.ab4 h4+–) 57...b6 (57...Nf8 58.Ke4+–) 58.e6 (58.cb6 cb6 59.f6 a5 60.ba5 Nc5+–) 58...Nf6 59.Ng6 (59.Nf3 bc5 60.bc5 a5+–) 59...bc5 60.bc5 a5 (60...Kg7 61.Ne5+–) 61.e7 (better is 61.Nf8 h4 62.Nd7 Nh5 63.Ke5 h3+–) 61...c6 (61...Kg7+–) 62.Ke5 Kg5 (62...Kg7 63.Ke6 Nd5 64.Nf4 Nf4 65.Kd6+–) 63.Ke6 (better is 63.Nh8 Nd7 64.Ke6 Nc5 65.Kd6 Ne4 66.Ke5 Nd2+–) 63...a4 (63...Nd5 64.Nf4!! Ne7 65.f6+–) 64.Ne5 Ne8 65.Nf3 Kf4 Black threatens to counter with Nc7 66.f6 (66.f6 Nc7 67.Kd7+–) 1–0. Kuhlmann – Malitz, 1974.

9.Bf6 gf6 10.Qe2 Qg6 +=.

9.Qc4 Qd5

10.Qd5 ed5 11.Bf6 gf6 12.Nc3 +/–.

10.Qd5 Nd5

11.0–0 a5 12.b5 Na7 13.Nd4 e5 14.Nf3 f6 15.d4 Nb5 16.de5 fe5 17.Ne5 Be7 18.Rd1 Nf6 19.a4 Nd6 20.Nc3 Nf7 21.Nb5 Rc8 22.Nc4 c6 (better is 22...Bb4+=) 23.Nb6+– Rd8 (23...Rb8 24.Nc7 Kf8+–) 24.Nc7 Kf8 25.Ne6 Kg8 26.Nd8 (26...Nd8 27.Nc8+–) 1–0. Labahn,Wolfgang – Kleindl,P, corr SOK–88–28, 1989.

11.0–0 f6 12.d4 0–0–0 13.Nbd2 b6 14.Rfc1+/– ½–½. Jurado,Hector – Zalys,Ignas, corr, 1971.

11.Nc3 0–0–0 12.b5!? Na5 13.Ne5 +/–.

11.Nc3 0–0–0 12.Nd5 Rd5+= (worse is 12...ed5 13.b5 Na5 14.Ne5+/–) 13.Rc1 (13.e4 Rb5+=) 13...f6 (13...a5 14.ba5 Ra5 15.Ra1=) 14.Ke2 (14.e4 Rd3 15.Rc3 Rc3 16.Bc3 Bd6=) 14...Be7 (14...a5 15.ba5 Ra5 16.Rc3=) 15.Nd4 (15.e4 Rh5+=) 15...Nd4= 16.Bd4 Rhd8 17.Rc2 (17.d3 Kd7=) 17...Kb8 18.g4 (18.Rhc1 c6=) 18...e5+= 19.Bc3 e4 20.h4 g6 (20...Rd3 21.f3 ef3 22.Kf3=) 21.Rcc1 (21.f3 f5=) 21...f5 22.Rcg1 Bd6 (22...R8d6 23.h5=) 23.gf5 Rf5 24.h5 (24.Rg4 Re8=) 24...gh5 25.Rh4 Re8 26.Rgh1 Ref8 27.Re4 Rf2 28.Kd3 R2f5 (28...Rd8 29.Kc2+=) 29.Reh4+= a5 (29...Rd8 30.Ke2+=) 30.ba5 Ba3 31.Rh5 Rh5 32.Rh5 Rf7 33.e4 c6 34.e5 Kc7 35.Ke4 Bf8 (35...Kd7!?+/–) 36.e6+– Re7 37.Be5 Kc8 38.Kf5 h6 39.Rh1 Rh7? (39...b5 40.Rg1 Re8+–) 40.Rg1 Re7 41.Rg8 (41.Rg8 Re8 42.Bg7+–) 1–0. Welling – Kok, 1981.

11.Nc3 Nc3 12.Bc3 a6 13.e4 =.

11.Nc3 Nc3 12.Bc3 f6 =.

11.Nc3 Rd8 12.Nd5 Rd5 13.e4 +=.

11.Ke2 0–0–0 12.b5!? Na5 13.Ne5 +/–.

11.Ke2 0–0–0 12.Rc1 Be7 13.d4 g5 14.b5 Na5 15.Nfd2 h5 16.Nc3 b6 (16...Nb6 17.Nce4 Rd5 18.a4+=) 17.Rc2+/– g4 18.Rac1 Bd6 19.g3 f5 20.Nd5 ed5 21.Bc3 Nb7 22.a4 (22.Nb1 Rh7+=) 22...h4= 23.Nb3 hg3 24.hg3 Rh2 25.Kd3 Rdh8 26.Rb1 f4 (better is 26...Kd7=) 27.gf4+/– Bf4 (27...R2h3 28.Rg1 R8h4 29.Rg3+/–) 28.Rg1 (28.ef4 R2h3 29.Kd2 Nd6+/–) 28...g3 29.ef4 gf2 30.Rf1 R8h3 31.Ke2 Nd6 32.Nd2 Nf5 33.Rf2?? (better is 33.Rcc1–/+) 33...Re3–+ 34.Kf1 Rh1 35.Kg2 Reh3 36.Re2 R1h2 (37.Kg1 Re2–+) 0–1. Buss,Michael D – Brekhus, corr USCF, 1984.

11.Ke2 a6 12.Rc1 f6 13.Nc3 Nc3 14.Bc3 Bd6 15.d4 0–0 16.h4 Rf7 17.g3 e5 18.Rd1 e4 19.Nd2 f5 20.Nc4 Na7 21.Rac1 Nb5 22.Bb2 Bf8 23.Rc2 Nd6 24.Rdc1 (24.Ne5 Re7+=) 24...Nc4= 25.Rc4 Bd6 26.d5 Rc8 27.Bd4 (27.h5 Rd8=) 27...Rd7 28.Bc5 (28.Rg1 Ra8+=) 28...b5= 29.R4c2 Be5 30.Rd1 g6 31.Rcd2 Kf7 32.Rc2 Kf6 33.Bd4 Bd4 34.Rd4 Ke5 35.Rc5 Rd6 36.Kd2 h6 37.Ke2 g5 38.hg5 hg5 39.f3 ef3 40.Kf3 g4 41.Ke2 Rcd8 42.Kd3 (better is 42.Rc7!? Rd5 43.Re7 Kf6 44.Ra7=) 42...Rd5–/+ 43.Rc7 Rd4 44.ed4 Rd4 45.Ke3? (better is 45.Ke2!?–/+) 45...Rc4–+ 46.Re7 Kf6 47.Rd7 Rc3 (48.Kd4 Ra3–+) 0–1. Kilpatrick,Robert – McCulloch,W, corr SCCA, 1978.

11.Ke2 a6 12.d3 =.

11.Ke2 Nb6 12.b5 Na5 13.Bc3 (13.d3 f6=) 13...Nac4 14.Bd4 Na5 (14...Nd5 15.a4=) 15.Ra2 f6 16.d3 Nb3 17.Bb6 ab6 18.Rb2 Nc5 19.d4 Ne4 20.Rc1 (20.Kd3 f5+=) 20...Bd6= 21.h4 (21.Kd3 f5=) 21...Kd7 22.Rb3 Ra4 23.Ne1 Rha8 Pawn a3, live or die!. Black gets the initiative 24.Nc2 f5 25.f3 Ng3 26.Kf2 f4 27.ef4 Bf4 28.Rd1 Nf5 Exerts pressure on the isolated pawn 29.Nc3 R4a5 30.Ne4 (30.h5 Bg3 31.Ke2 Bd6=) 30...Bd6 (worse is 30...Nh4 31.g3 Ng6 32.gf4 Nf4 33.Kg3 Ne2 34.Kh2+/–) 31.Nd6 Nd6 32.Rdb1 Rf8 33.Rd1 (33.g4!?=) 33...Rb5 34.Re3 (34.Rb5 Nb5 35.Rd3 Rf5–/+) 34...Rb2 35.Re2 c6 36.Rd3 Nf5 (36...b5 37.Ne3 Ne4 38.Ke1 Rb1 39.Nd1–/+) 37.h5 (37.g3 Ra2–/+) 37...Ra8 (37...b5 38.Rc3–/+) 38.Rb3?? (better is 38.g3+=) 38...Rb3–+ (38...Rb3 39.g4 Nd6–+) 0–1. Gerold,Guenter – Urban,Jaromir, corr ICCF EU/M82, 1999.

11.Ke2 Be7 12.Rc1 Bf6 13.Bf6 Nf6 (13...gf6!? 14.Nc3 Nc3 15.Rc3 a6+=) 14.b5+/– Na5 15.Rc7 Nd5 16.Rc2 f6 17.Nc3 Rc8 18.Nd4 (18.Rac1 Nb3 19.Rb1 Nc3 20.dc3 Nc5+/–) 18...Kd7 (18...Nc3 19.Rc3 Rc3 20.dc3+/–) 19.Rd1 Nc4 (19...Nc3 20.Rc3 Rc3 21.dc3+/–) 20.Nd5+– ed5 21.a4 Na3 22.Ra2 Nc4 23.d3 Nd6 24.f3 f5 25.e4 Rhe8 26.Kf2 fe4 27.de4 de4 (27...Rf8 28.Nf5 Nf5 29.Rd5 (29.ef5?! Rf5 30.g4 Re5=) 29...Ke6 30.Rf5 Rf5 31.ef5 Kf5 32.Rd2+/–) 28.Nf5+– Re6 29.Rad2 e3 30.Ne3 g6 31.Rd4 Ke7 32.Nd5 Kd7 33.Ne3?? (33.R1d2 Rd8+–) 33...Rd8?? (33...Ke7 34.h4 Rc5+–) 34.g4 Ke8 35.Nd5 Rd7 (35...Rc8+–) 36.Nf4 Rf6 37.g5 Rf5 38.Nd5 (38...Nf7 39.Nf6 Rf6 40.gf6+–; 38.Rd6?! Rd6 39.Rd6 Rf4 40.Re6 Kd7+–) 1–0. Buss,Michael D – Weimer,Helmut, corr USCF, 1984.

11.Ke2 f6 12.Rc1 a6 13.d3 Kf7 14.Nbd2 Bd6 15.Ne4 Rhd8 16.Rc2 Re8 17.Rac1 Rad8 (17...Be7 18.Nc3=) 18.Rc4 (18.Rc6 bc6 19.Rc6 a5 20.ba5 Ke7+=) 18...Nb6 19.Nd6 cd6 20.Rh4 (20.Rc6 bc6 21.Rc6 Na4+=) 20...Kg8 21.Nd4 Rc8 22.Nc6 Rc6 23.Rc6 bc6 24.e4 Rc8 25.Bd4 Nd7 26.f4 e5 27.fe5 fe5 28.Bc3 ½–½. Sternik,Ryszard – Zawierucha, corr, 1996.

9.Qc4 Be7

10.0–0 0–0 11.d4 Qd5 12.Nbd2 Qc4 13.Nc4 Nd5 14.b5 Nb8 15.e4 Nf6 16.e5 (16.Rfe1 c6 17.a4 Rc8=) 16...Nd5= 17.Rfc1 a6 (17...Rd8 18.Ne3 c6 19.Rc2=) 18.a4 (18.Ne3 Ne3 19.fe3 Rc8=) 18...ab5 19.ab5 Ra1 20.Ra1 c6 21.Ne3 Ne3 22.fe3 cb5 23.Ra5 (23.Ra7 Nc6 24.Rb7 Ra8+/–) 23...b4= 24.Rb5 Rc8 25.Ne1 (25.Rb7 Bf8=) 25...Nc6+= 26.Rb7 Kf8 27.e4 Na5 28.Rb5 Nc4 29.Bc1 Na3 30.Ba3 ba3 31.Rb1 a2 32.Ra1 Ra8 33.Nd3 (better is 33.Nc2!?–/+) 33...Bg5–+ 34.Nb4 Ra4 35.Na2 (35.Nc2 Bd2 36.d5 Bc3–+ (36...Re4?! 37.d6 Ra4 38.Rd1–+)) 35...Be3 (35...Rd4?! 36.Nc3 Bf4 37.Ne2 Be3 38.Kf1 Re4 39.Ra5–+) 36.Kf1 Bd4 (36...Rd4?! 37.Nc1–/+) 37.Rd1 Bb2 (37...Ra2?! 38.Rd4 Ra5 39.g4–/+; 37...Be5?! 38.Rd2–+) 38.Nc1 Ra1 (38...Be5?! 39.g3–+) 39.Rd8 Ke7 40.Rb8 Rc1 (40...Rc1 41.Ke2 Be5–+; worse is 40...Bc1 41.Rb7 Ke8 42.Rb8 Kd7 43.Rb7 Kc6 44.Rf7 Bf4 45.Ke2 Be5 46.Re7–+) 0–1. jackhammer3000 (1870) – celepons (1950), gameknot.com, 2015.

10.d4 Qd5 11.Qc2 Qe4 12.Qb3 (12.Qe4 Ne4 13.b5 Na5=) 12...0–0 13.Nbd2 Qg6 14.0–0 White gets strong initiative 14...Ne4 (14...Rfd8 15.b5 Nb8 16.Ne5=) 15.Nc4 (15.Ne4 Qe4 16.b5 Na5+/–) 15...Bf6 (15...Bd6 16.Nd6 cd6 17.b5=) 16.b5 Ne7 17.Nce5 Be5 18.Ne5 Qh5 (18...Qf6 19.Nd7 Qg6+–) 19.Qc2+/– Nf6 (19...Qh4 20.g3 Ng3 21.hg3 Qg5 22.Qc7 a6+–) 20.Qc7+– Ned5 21.Qb7 Rfb8 22.Qa6 Qe2 23.Rab1 Rb5 24.Ba1 (24.Rfe1 Nc7 25.Re2 Na6+–) 24...Rb2+– 25.Qc6 (25.Qe2!? Re2 26.Rb7 Ra2+–) 25...Rbb8+/– 26.Rfe1 Ne4 27.f3?? (better is 27.Qe8! Re8 28.Re2+/–) 27...Ne3 (27...Qe3 28.Kh1 Nf2 29.Kg1 Nd3 30.Kh1 Ne1 31.Rb8 Rb8–+) 28.Qc8 (28.Re2?? Rb1 29.Qc1 Rc1 30.Re1 Re1) 28...Rc8 29.Re2 Nc3 (30.Bc3 Rc3+=). Gross,Wilhelm – Merten,Rainer, 1991.

10.0–0 0–0

11.b5 Nb8 =.

11.Nc3 Nd5 12.Rac1 Bf6 13.d4 Nb6 14.Qe2 a5 15.b5 Na7 16.Ne4 Be7 17.Nc5 Rb8 18.Rfd1 Qe8= 19.a4 Bc5 20.dc5 Na4 21.Be5 Qb5 22.Qc2 f6 23.Bc7+= Rbc8 24.Nd4 Qd7 25.c6 Qc7 26.Qa4 Rfd8 27.cb7 Qc1= 28.b8Q Kf8?? 29.Kf1 Qc3?? 30.Nb5 Rd5 31.e4 Qe5?? 32.Qa2 Qc7 33.h4 (33...Rd1 34.Ke2 Qb8 35.Kd1 Nb5 36.Qa1–+; better is 33.Qc7 Rd1 34.Ke2 Rc7 35.Nc7+– (35.Kd1?! Nb5 36.Qa5 Rd7 37.Ke1 Nd4+/–)) 1–0. Baluch,Wieslaw – Piszcz,Kazimierz, corr 2. AMM Poland, 1993.

11.Nc3 Nd5 12.Nd5 ed5 13.Qg4 Bf6 14.Bf6 Qf6 +=.

11.Nc3 Bd6 12.d3 =.

11.d4 Bd6 12.Nc3 Nd5 13.e4 Nf4 14.Rad1 White plans d5 14...Qc8 15.e5 Be7 16.d5 Nd5 17.Nd5 ed5 18.Rd5 Qe6 19.Rfd1 Rad8 20.Qd3?? (better is 20.R1d2+=) 20...Rd5–+ 21.Qd5 Rd8 (21...Rd8 22.Qd8 Nd8–+) 0–1. Eberl,H – Lahn, DDR–Czechoslovakia (?), 1985.

10.Nc3 0–0

11.0–0 a5 12.b5 Nb8 13.d3 +=.

11.0–0 Nd5 12.d4 Nb6 13.Qb3 a5 14.b5+= Na7 15.e4 c6 16.bc6 Nc6 17.d5 a4 18.Qa2 ed5 19.Nd5 Nd5 20.ed5 Na5 21.Rfe1 Nb3 22.Rad1 Ra5 23.Bc3 Ra6 24.Qb2 Bf6 25.Bf6 Rf6 26.Qe2 Qd6 27.Ne5 Nc5 28.Nc4 Qf4 29.Ne5 h6 30.Qc2 b6 31.g3 Qg5+= 32.d6 Re6 33.f4 Qf6= 34.d7 Rd8 35.Re2 Rd6= 36.Red2 Rd2 37.Rd2 Qe6 38.Re2 f6 39.Nc4 Rd7?? 40.Re6+– (40...Ne6 41.Nb6+–) 1–0. Buczinski,Henryk – Piszcz,Kazimierz, corr 2. AMM Poland, 1994.

11.0–0 Nd5 12.Nd5 Qd5 13.Qd5 ed5 14.b5 Na5 +=.

11.0–0 Nd5 12.Nd5 Qd5 13.Qg4 e5 14.e4 Qb5 15.d4 +=.

11.0–0 Nd5 12.Nd5 Qd5 13.Qg4 f6 14.e4+= Qd7 15.d4 Rad8 16.Rad1 f5 17.Qf4 fe4 18.Qe4 Qd5 19.Rfe1 Qe4 20.Re4 Rd6 21.Rde1 Nd8 22.Ne5 Rd5 23.Nd3 Bd6 24.Nc5 e5 25.Nd7 Bb4 26.ab4 Rd7 27.de5 Rd2 28.Bd4 Nc6 29.Bc5 Re8+= 30.f4 b6 31.Be3 Rb2 32.Rc4 Re6 33.Rec1 Nb4 34.Rc7 Nd5+– 35.Rc8?? Kf7=+ 36.Bd4 Rd2 37.f5 Re8 38.e6+/– Ke7 39.Re8 Ke8 40.Bg7 Re2 41.Kf1 Re4 42.Bh6 Ke7? 43.Bg5+– Kd6 44.Rd1 h6? 45.Bh6 Ke5 46.Bg5 Nf6 47.Bf6 Kf6 48.Rd5 a5 49.Kf2 Rb4 50.Ke3 a4 51.Rd4 Rb3 52.Kf4 a3 53.g4 a2 54.g5 Kg7 55.Rd7 Kg8 56.e7 Kf7 57.g6 Ke8 58.Ra7 Rb2 59.g7 (59...Rg2 60.f6+–) 1–0. Hoffmann,Piotr – Piszcz,Kazimierz, corr 1. AMM Poland, 1992.

11.0–0 Qd6 12.b5 Ne5 13.Ne5 Qe5 14.d4 =.

11.0–0 Bd6 =.

11.Qb5 Rb8 =.

11.Rc1 a5 12.b5 Nb8 13.0–0 =.

11.d4 Nd5 12.Ne4 Nb6 13.Qc2 a5 14.b5 Na7 15.a4 c6 16.bc6 Nc6 17.Nc3 Nb4 18.Qb3 Nd3 19.Ke2 Nb2 20.Qb2 Qc7 21.Rhc1 Qc4 22.Ke1 Bb4 23.Ne5 Qa6 24.Qe2? Nd5–+ (25.Qb2 Rac8–+) 0–1. Laber,Seweryn (2080) – Kirylo,Tadeusz (2000), corr 1. AMM Poland, 1991.

11.d4 Nd5 12.Ne4 Re8 13.0–0 Bf8 (13...a5 14.b5 Na7 15.Rfc1=) 14.Rac1 (14.Nc5 Bc5 15.dc5 a6+/–) 14...a6 15.Ng3 Rc8 16.Ne5 (16.e4 Nf4+=) 16...Ne5= 17.de5 c5 18.bc5 Bc5 19.Qg4 Ne3 20.fe3 Be3 21.Kh1 Bc1 22.Bc1 (22.Rc1?? Qd2 23.Rf1 Qb2–+) 22...Qd3 23.Qf4 Qg6 (23...Rf8 24.Bd2+=) 24.Ne4 Rc2 25.g4 h5 (25...Rf8 26.g5+=) 26.g5 (26.Nd6 Rf8+=) 26...Rec8+= 27.Nd6 R8c3 28.Be3 (28.a4 f6 29.Bd2 Rd3–/+) 28...Ra3–/+ 29.Nf7 (29.Kg1 Rb3–/+) 29...Qf5 30.Kg1?? (30.Nd6 Qf4 31.Bf4 b5–/+) 30...Qf4 (better is 30...Raa2 31.Qf3 Qf3 32.Rf3 Ra1 33.Rf1 Rf1 34.Kf1 Kf7–+) 31.Bf4–/+ (31.Rf4?? Re3 32.g6 h4–+) 31...Raa2 (31...b5!?–/+) 32.Nd8= Rg2 33.Kh1 Rgf2 (33...b5 34.Ne6 h4 35.Nc7=) 34.Rf2 Rf2 35.Bg3 Re2 36.Ne6 a5. Ambrosi,Arcangelo (1975) – Grillo,Francesco (1645), Salsomaggiore Terme op 8th, 2004.

11.Rc1 a6

12.d4 a5 13.b5 Na7 14.0–0 +=.

12.d4 Rc8 13.e4 a5 14.b5 Na7 +=.

12.d4 Rc8 13.h3 Nd5 14.Nd5 ed5 15.Qc2 Bd6 16.Qf5 Ne7 17.Qh5 Re8 18.Ng5+/– Ng6 19.Qh7 Kf8 20.Qh5 Bf4 21.Nf7 Qf6?? 22.Ne5 Be5 23.de5 Ne5 24.Be5 Qe5 25.Qe5 Re5 26.0–0 c6 27.Rc3 Rce8 28.Rd1 Re4 29.g3 Kf7 30.Kg2 R8e6 31.Rdd3 g5 32.g4 Rc4 33.Rc4+– dc4 34.Rc3 b5 35.Kg3 Rd6 36.f4+– gf4 37.ef4 Rd1 38.f5 Rb1 39.Kf4 Rb3 40.Re3 c3 41.Re1 Ra3+/– 42.Rc1 a5+= (43.ba5 Ra4 44.Ke3 b4+=). Weber,Krzysztof – Piszcz,Kazimierz, corr 2. AMM Poland, 1993.

12.d4 Rc8 13.h3 Bd6 14.0–0 =.

12.d4 Nd5 13.0–0 =.

12.d4 Nd5 13.Na4 Ncb4–/+ 14.ab4 b5 15.Qb3 ba4 16.Qa4 Nb4 17.Ke2 c5 18.Rhd1 Qb6–/+ 19.Ne5 Nd5 20.Ba3 Rfc8 21.Nd7 Qb5 22.Qb5= ab5 23.Bc5 Bc5 24.dc5 h6 25.Rd2 Rc7 26.Ne5 b4 27.Rc4 b3 28.e4 Ne7 29.Kd3 Ra5 30.Kd4 Rb5 31.Rb2 f6 32.Nd3 Rd7 33.Kc3 Nc6 34.f4 e5 35.g3 ef4 36.gf4 g5 37.e5 f5 38.Ra4 Na5 39.Rd4 Rd4= 40.Kd4 gf4 41.e6 Kf8 42.Kd5 Rb8 43.Ne5 Rd8 44.Nd7 Ke7 45.Rg2 Re8 46.c6 Nc6 47.Kc6 Ke6 ½–½. Mus,Roman – Piszcz,Kazimierz, corr 2. AMM Poland, 1994.

12.d4 Qd7 13.0–0 Rfd8 =.

12.d4 Qd7 13.Ne5 Ne5 14.de5 (White gets strong play along the open d–file) 14...Ne8 15.Ne4 Rd8= 16.Ke2 Qd5 17.Rhd1+= Qc4 18.Rc4 Rd1 19.Kd1 c6 20.Rd4 Nc7 21.Rd7 Rd8+= 22.Rd8 Bd8 23.Nc5 b6= 24.Nd7 Nd5 25.g3 Bc7 26.e4+= Ne7 27.Ke2 Nc8 28.Bd4 h6 29.f4 g6 30.Kf3 Kg7 31.g4 g5 32.f5 Kg8 33.Kg3 Kg7 34.Nf6 Bb8 35.h4 c5 36.bc5 bc5 37.Bc3 Nb6 38.Ne8+/– Kf8 39.Nd6 Nd7 40.hg5 hg5+= 41.Kf3 f6 42.fe6 Ne5 43.Be5 fe5 44.Nc8 Bc7 45.Ke3 c4 46.Kd2 Ba5 47.Kc2 Be1 48.Nd6 c3 49.Nc4 Bg3 50.Kc3 Ke7 51.Kb4 Ke6 52.Kc5 Bf2= 53.Kc6 Bg3 54.Na5 Ke7 55.Kd5 Bf4 56.Nc6+= (56...Kf6 57.Nb8+=). Mus,Roman – Kirylo,Tadeusz, corr 1. AMM Poland, 1992.

10.Nc3 a6

11.0–0 0–0+= A) 12.d3 Qd6 (12...Qd7) 13.Rfd1 Rad8 14.Rac1 Qd7 15.Ne4 Nd5+=; B) 12.Ne4 Ne4 13.Qe4 Qd6 14.Rfc1 f5 15.Qc4 Bf6=; C) 12.d4 Nd5 (12...Qd7 13.e4 b5 14.Qb3 a5 15.d5 ed5+=; 12...Nd7; 12...Re8; 12...Bd6; 12...Qd6) 13.e4 Nb6 14.Qb3 Bf6 15.Rad1 Re8+=; D) 12.Rfd1 Qd6 (12...Bd6 13.d4 Nd7 14.Ne4 Nb6 15.Qc2 Qe7+=; 12...Qd7 13.d4 b5 14.Qe2 Nd5 15.Rac1 Bd6+=; 12...Nd5; 12...Qe8; 12...Re8) 13.d3 Rad8 14.Rac1 Rfe8 15.Rd2 Nd7+=; E) 12.e4 Qd6 13.d4 Qf4 14.Bc1 Qg4 15.Ne5 Ne5+=.

11.0–0 Qd6 A) 12.Rfd1 0–0 13.d3 Rad8 14.Rac1 Qd7 15.Ne4 Nd5+=; B) 12.Rad1 Rd8 (12...0–0 13.d4 Rad8 14.e4 Qf4 15.Bc1 Qg4+=; 12...b5) 13.b5 Na7 14.Rb1 Rd7 15.Ne4 Ne4+=; C) 12.Rac1 0–0 13.Ne4 Ne4 14.Qe4 f5 15.Qc4 Bf6=; D) 12.e4 Rd8 (12...0–0) 13.d4 Nd4 14.Nd4 Qd4 15.Qc7 Ne4+=; E) 12.d4 Rd8 (12...b5 13.Qd3 Rd8 14.Rac1 0–0 15.Qc2 Na7+=; 12...Rc8 13.e4 Nd7 14.Qe2 Qf4 15.Rfd1 Bd6+=; 12...0–0 13.e4 Qf4 14.Bc1 Qg4 15.Ne5 Ne5+=; 12...Rb8 13.e4 b5 14.Qd3 Qd7 15.d5 0–0+/–; 12...Qd7 13.Rfd1 b5 14.Qe2 0–0 15.e4 Rad8+/–) 13.b5 Nb8 14.e4 Qd7 15.ba6 Na6+=.

11.0–0 Qd7 A) 12.Rad1 b5 (12...Rd8; 12...0–0; 12...Bd6) 13.Qe2 0–0 14.Rc1 Rfb8 15.Rc2 a5=; B) 12.Ne4 Ne4 13.Qe4 f5 14.Qc2 Bd6 15.e4 0–0=; C) 12.d4 0–0 (12...Rd8 13.Rfd1 b5 14.Qe2 0–0 15.e4 Nb8+/–; 12...b5 13.Qe2 0–0 14.Rfd1 Nd5 15.Rac1 Bd6+=; 12...Nd5 13.e4 Nb6 14.Qb3 Bf6 15.Rad1 Rd8+=) 13.e4 b5 14.Qb3 Rae8 15.Rad1 Rd8+=.

11.d3 0–0 (11...Bd6; 11...Qd7) A) 12.0–0 Qd7 (12...Qd6 13.Rfd1 Rfd8 14.Rac1 Rac8 15.Na4 Nd7+=) 13.Rfd1 Rfd8 14.Ne4 Nd5 15.Rac1 Nb6+=; B) 12.Rd1 Qd7 (12...Ne8; 12...Bd6; 12...Re8; 12...Nd5; 12...Qe8) 13.0–0 Rfd8 14.Ne4 Nd5 15.Rc1 Bd6=; C) 12.Ne4 Ne4 13.de4 Qe8 14.0–0 Rd8 15.Rad1 Bd6+=; D) 12.Rc1 Qd6 (12...Qd7) 13.Na4 Nd7 14.Nc5 Nc5 15.bc5 Qd7+=.

11.d4 0–0 12.0–0 (12.e4 Qd7 (12...Nd7 13.0–0 Nb6 14.Qb3 Bf6 15.Rad1 Re8+=; 12...Re8 13.0–0 Qd7 14.d5 ed5 15.Nd5 Nd5+=; 12...Nb8+= 13.d5 ed5 14.Nd5 Nd5 15.Qd5 Qd5+=; 12...Ne8 13.0–0 Nd6 14.Qb3 Qd7 15.Rad1 Rad8+=; 12...a5 13.b5 Na7 14.0–0 Nc8 15.Qd3 Nb6+=) 13.d5 ed5 14.Nd5 Nd5 15.ed5 Na7+=; 12.Rd1 Nd5 (12...Qd6 13.0–0 Rad8 14.e4 Qf4 15.Bc1 Qg4+=) 13.e4 Nb6 14.Qd3 Re8 15.0–0 Qd6+=) 12...Na7 (12...Nd5 13.e4 (13.Rfd1) 13...Nb6 14.Qb3+= Bf6 15.Rad1 Re8+=; 12...Qd6 13.e4 Qf4 14.Bc1 Qg4 15.Ne5 Ne5+=; 12...Qd7 13.e4 b5 14.Qb3 a5 15.d5 ed5+=; 12...Bd6 13.e4 Nd7 14.Rfd1 Nb6 15.Qb3 Qe8+=; 12...Nd7 13.Rad1 Bd6 14.d5 ed5 15.Nd5 Re8+=; 12...Re8 13.Rad1 Bd6 14.d5 ed5 15.Nd5 Ne4=) 13.e4 c6 14.Rac1 (14.a4 Nc8+= (14...b5) 15.a5 Nd6=; 14.Rfd1 Nb5 15.Qd3 Nc7=) 14...Nb5 (14...a5 15.ba5 (15.Ne5= ab4=) 15...Qa5=) 15.Rfe1+= (15.Qd3 Qb8+=) 15...Nc3 (15...h6 16.a4 Nc3 17.Bc3+= (worse is 17.Qc3 a5+=); 15...Qb8+=) 16.Bc3 Rc8 (16...Qb6 17.a4+=) 17.Ne5 Nd7 18.Nd3 Qc7 19.Qb3 (19.a4 h6+=) 19...Bf6 (19...Rfe8 20.a4+=) 20.f4 (20.a4 Rfd8+=) 20...g6 (20...Qb6 21.Nc5 Rcd8 22.Rcd1+=) 21.a4 Bg7 22.Kh1 (22.Rf1 Rcd8+=) 22...Rfd8 23.Rf1 Nf6 (23...Qb6 24.Qc4+=) 24.Rce1 b6 (24...Qb6 25.Ne5+=) 25.Qb2 (25.Re2 Nh5 26.e5 Bf8+=) 25...Nd7 (25...c5 26.bc5 bc5 27.Nc5+=) 26.f5 (26.Rc1 Qd6+=) 26...ef5 27.ef5 g5 (27...Re8 28.fg6 hg6 29.Qa2=) 28.Rf3 (28.Qd2 h6+=) 28...Re8= 29.Ref1 (29.Re8 Re8 30.d5 Bc3 31.Qc3 c5=) 29...f6 (29...Qd6 30.f6 Nf6 31.Ne5=) 30.Qb3 (30.Qa2 Kh8+=) 30...Kh8 31.Qf7 Nf8 (31...Qd6!?+=) 32.Qh5+/– Re4 33.Rh3 Qe7 (33...Rce8 34.a5+/–) 34.a5 Qe8 35.Qe8 ½–½. Belov,PI – Komarov,GM, corr semi Nipsegorodskaya oblast RUS, 1995.

11.d4 Nd5 A) 12.0–0 f5 (12...Nb6 13.Qe2 0–0 14.Rfd1 Bd6 15.Ne4 Nd5+=; 12...Qd7 13.e4 Nb6 14.Qb3 Bf6 15.Rad1 Rd8+=; 12...Bf6 13.Na4 0–0 14.Nc5 Qc8 15.Rac1 Nd8+/–; 12...0–0 13.e4 Nb6 14.Qb3 Bf6 15.Rad1 Re8+=; 12...Bd6 13.e4 Nb6 14.Qd3 0–0 15.Rad1 Re8+=) 13.Rac1 0–0 14.Rfd1 Qd7 15.Ne5 Ne5=; B) 12.e4 Nb6 13.Qd3 Bf6 14.Rd1 Qd7 15.0–0 0–0+=; C) 12.Ne5= Ne5 13.de5 Nc3 14.Bc3 Qd5 15.Qd5 ed5=; D) 12.Rd1 Bd6 13.0–0 0–0 14.e4 Nb6 15.Qb3 Re8+=.

11.d4 Qd6 12.0–0 (12.e4 Qf4 13.Rc1 Rd8 14.d5 ed5 15.Nd5 Nd5+=; 12.Rc1; 12.Rd1) 12...0–0 13.Rad1 Rad8 14.e4 Qf4 15.Bc1 Qg4 +/–.

11.d4 Qd7 A) 12.e4 b5 (12...Rd8 13.Rd1 b5 14.Qb3 0–0 15.0–0 Rfe8+=) 13.Qd3 0–0 14.d5 Rad8 15.Rc1 Nb8=; B) 12.0–0; C) 12.Rd1 Rd8 13.Ne5 Qd6 14.Nc6 Qc6 15.Qc6 bc6+/–.

11.Ne4 Ne4 12.Qe4 0–0 (12...Bf6 13.Bf6 gf6 14.d4 f5 15.Qf4 Rg8+=) 13.Rc1 Qd6 14.d3 f5 15.Qc4 f4 +=.

8.Bd3 Qd3

9.Qa4 a6 10.Ne5+= Qd6 (10...Qb5!? 11.Qb5 ab5 12.Nc6 bc6=) 11.Nc6+/– bc6 12.0–0 (12.Bf6 gf6 13.d4 Rg8+/–) 12...Be7 13.Rc1 Kd7 (13...0–0 14.Rc6 Qd7 15.Qc2+–) 14.Be5 Qd5 15.d4 Bd6 (15...a5 16.Bf6 gf6 17.ba5+/–) 16.Nc3 Qc4 17.Bf6 gf6 18.Ne4 Qb5 19.Nf6 (better is 19.Qc2!?+–) 19...Ke7+/– 20.Qb5 cb5 21.Ne4 Rhg8 22.Nd6 Kd6 23.g3 (23.a4 a5+/–) 23...a5 24.Kg2 (24.h3 h6+/–) 24...f5 (24...ab4 25.ab4 Ra4 26.Rab1+/–) 25.f4 (25.h3 h6+/–) 25...ab4+= 26.ab4 Ra1 (26...Ra4!?+=) 27.Ra1+/– Rg7 28.Kf3 c6 (28...Kd5 29.Ra8+/–) 29.Rc1 (29.e4 fe4 30.Ke4 Rd7+–) 29...Ra7+/– 30.h3 (30.Rc5 Ra4+=) 30...h5 31.Rc3 Ra2 (31...Ra4 32.Rb3+/–) 32.Rb3 (32.e4!?+/–) 32...Rh2 33.h4 Rd2 34.Rb1 Rc2 35.Rb3 (35.Ra1 Rb2+=) 35...Kd5 36.Ra3 Kc4 37.Ra8 Kb4 38.Re8 Rd2 39.Re6 c5 40.dc5 Kc5 41.Re5 (41.Rh6 b4+/–) 41...Rd5 42.e4 Re5 43.fe5 Kd4?? (43...b4 44.Ke3 b3 45.ef5 b2–+) 44.e6+– fe4 45.Ke2 b4 46.e7 b3 47.e8Q Kc4 (47...Kc3 48.Qh5 Kc4 49.Qe5+–) 48.Qe4 (48...Kc3 49.Qf3 Kc2 50.Qf5 Kc3 51.Qc5 Kb2 52.Kd2 Ka2 53.Kc3 b2 54.Qf2 Ka1 55.Qb2#) 1–0. Hasler,Ulrich – Borsi,Imre, corr ICCF EU–III–1006, 1989.

9.Qa4 b5 10.Qa6 Ne7 +=.

9.Qa4 Nd7 10.Nc3 a6 11.Rc1 Bd6 (11...Nb6 12.Qd1+=) 12.Qc2 (12.Ne2 0–0=). Sokolski,Alexey – Borisenko, (year?).

9.Qe2 Qb3 10.Bf6+= gf6 11.d4 Qa4 12.Qb2 Qb5 (12...Bd6 13.Nc3 Qa6 14.Ne4+/–) 13.Nc3 Qd3 14.Rd1 Qg6 15.Rg1 Bd6 16.b5 Ne7 17.e4 e5 (17...a6 18.e5 fe5 19.de5+=) 18.Qb3 (18.Nh4 Qh5 19.g3 ed4 20.Rd4 f5+=) 18...0–0–0 19.a4 (19.b6 ab6 20.Nh4 Qh5 21.de5 Be5=+) 19...ed4+= 20.Rd4 Be5 21.Rc4 Rd7 (21...Rd3 22.Nd5 Rb3 23.Ne7 Kd7 24.Ng6 hg6 25.h3=) 22.Qa3 (22.b6 ab6 23.Nh4 Qh6=+) 22...Rhd8 23.Ke2 (23.a5 Bd6 24.Qa4 f5+=) 23...Qg4 24.h3 Qf4 (24...Qe6 25.Qb4=+) 25.Qc1 Qc1 (25...Ng6 26.Nd5 Qc1 27.Rgc1 Nf4 28.Nf4 Bf4 29.R1c2+/–) 26.Rc1+= Bc3 (26...h6 27.a5+=) 27.R1c3+/– Ng6 28.Ke3 Ne5 29.Rd4 Nf3 30.Rd7 Rd7 31.gf3 (31.Kf3 a6+/–) 31...Rd1 (31...f5 32.a5+/–) 32.Kf4 (32.Rd3 Rh1+=) 32...Kd7 33.Kf5 Rd6 34.f4 a6 35.h4 ab5 36.ab5 Rb6 (36...Rd2 37.Kf6 Rf2 38.f5+/–) 37.Rc5 (37.Rd3 Ke7 38.Rd5 c6 39.bc6 bc6=) 37...Rd6 38.h5 Re6 (38...h6 39.f3+/–) 39.f3 Rb6 40.Rd5 Ke7 41.h6 Re6 (41...c6 42.bc6 bc6 43.Rc5+=) 42.Rc5 Kd7 43.Rc3 Rb6 44.Rd3 Ke7 45.Rd5 (45.Rb3!?+=) 45...Re6= ½–½. Mitrus,Cezary – Kirylo,Tadeusz, corr 1. AMM Poland, 1992.

9.Qe2 Qe2!? 10.Ke2 Nd5 =+.

9.Qe2 Qe2 10.Ke2 Bd6 11.Bf6+= gf6 12.Nc3 Rg8 13.Ne4 Rg2 14.Nf6 (14.Ng3 a5 15.b5 Na7+/–) 14...Ke7= 15.Nh7 a5 16.b5 Na7 (16...Ne5 17.Nhg5 Ng4 18.Rhg1 Rg1 19.Rg1 Nh2 20.Nh2 Bh2 21.Rh1+=) 17.a4 Rh8 18.Nhg5 f6 The pressure on the backward pawn h2 grows (18...c6!? 19.bc6 Nc6+/–) 19.Ne4 c6 (19...Bh2? 20.d3+– (worse is 20.Nh2 Rgh2 21.Rh2 Rh2+–; 20.Rh2?! Rgh2 21.Nh2 f5+–)) 20.Ng3 (20.Rag1 Rgg8 21.bc6 Nc6+–) 20...cb5 21.ab5 Nb5 22.Kf1 Bg3 (22...Rg3 23.fg3 Na3 24.d4+/–) 23.Kg2 Bc7 24.Rhc1 Bd8 (24...Kd7 25.d3+/–) 25.Ra2 (25.d3 Na7+/–) 25...Rg8 (25...Nd6 26.Nd4+/–) 26.Kh1 (26.Kf1 Nd6+/–) 26...Nd6 27.d3 b5 28.Nd4 Kd7 29.Nb3 Nb7 30.Rac2 a4 31.Nd4 Nd6 32.Rb1 Rg5 33.Rcb2 Rd5 34.Kg1 (34.Nb5 Nb5 35.Rb5 a3 36.Rd5 ed5+–) 34...f5 (34...Be7 35.Kf1+/–) 35.Nb5+– Nb5 36.Rb5 Rd3 37.Rb7 Kc6 38.Ra7 a3 39.Ra1 Rd2 40.R1a3 Bh4 41.f4 Kc5 42.h3 (42.R7a5 Kc6+–) 42...Rd1 43.Kg2 Rd2 44.Kf1 Rf2 45.Kg1 Re2 46.Rc3 Kd5 47.Ra5 Kd6 48.Ra1 Kd5 49.Rb3 Rd2 50.Ra5 Ke4 (50...Kc4 51.Rb6 Bf2 52.Kf1 Be3 53.Re6 Bf4 54.Rf5+–) 51.Ra4 Kd5 52.Rb5 Kc6 53.Re5 Rd1 (53...Rd6 54.Kg2+–) 54.Kg2 Rd2 55.Kf1 Rd6 (55...Rf2 56.Kg1 Re2 57.e4 Re4 58.Rae4 fe4 59.Kg2+–) 56.Rc4 (56.e4 Bf6 57.ef5 Be5 58.fe5 Rd1 59.Ke2 Rh1 60.Ra6 Kc5 61.Re6 Rh3+–) 56...Kd7 57.Ke2 Ra6 58.Rec5 Ke7 59.Rc2 (59.Rc7 Kd6+–) 59...Kf6 (59...Kd6 60.R5c4+–) 60.Rc7 Bg3 (60...Kg6 61.Kf3 Bf6 62.h4+–) 61.h4! e5 (61...Bh4 62.Rh7 Decoy) 62.R2c6 Rc6 63.Rc6 Kf7 64.h5 ef4 65.Kf3 Kg7 66.ef4 Be1 67.Rg6 Kf7 68.Rg5 Ke6 69.h6 Bc3 70.h7 Bb2 71.Rg8 Kf7 72.h8Q Bh8 73.Rh8 Kg7 74.Rb8 Kf7 75.Ke3 Ke7 76.Kd4 Kd7 77.Ke5 Kc7 78.Rf8 Kb6 79.Kd4 1–0. GLChess210 – Nejmet256, computer chess game, 2000.

9.Qe2 Qe2 10.Ke2 Nd7 11.d3 =.

9.Qe2 Qe2 10.Ke2 Be7 11.Rc1 a6 12.Kf1 (12.d3 Rd8=) 12...0–0–0 13.Kg1 Rd5 14.Bf6 Bf6 15.d4 Rf5 (15...Rhd8 16.Nc3 R5d7 17.Kf1=) 16.Ra2 Rd8 17.Nc3 Be7 18.Nd2 Rh5 19.Nc4 Bg5 20.f4 Be7 21.Rb2 (21.Rac2 h6=) 21...b5 (21...f5!?=) 22.Nd2+= Nb8 (22...g5 23.Nce4 Nb4 24.ab4 (24.Rb4?! Bb4 25.ab4 gf4=) 24...gf4 25.Rbc2+/–) 23.Rbc2+/– c6 24.Nb3 (24.Nf3 f5+/–) 24...f5 25.Nb1 (25.Ne2 Kd7+/–) 25...Kc7 (25...g5 26.N1d2+=) 26.N1d2+/– Rh6 (26...Kd7!?+/–) 27.Nf3+– Bf6 (27...Rd5 28.Na5 c5 29.bc5+–) 28.Na5 Rd6 29.Ne5 Be5 30.fe5 Rd7 31.Nc6 Nc6 32.Rc6 Kb7 33.Rd6 Rc7 34.Rc7 Kc7 35.Ra6 Rg6 36.Rd6 Rh6 37.Kf2 Rg6 38.Kf3 Rh6 39.d5 ed5 (39...g5+–) 40.Rh6 gh6 41.Kf4 h5 42.Kf5 h4 (42...Kd7 43.Kf6 Ke8 44.h4+–) 43.Kf6 1–0. GLChess210 – Ant416, computer chess game, 2000.

9.Qe2 Qe2 10.Ke2 Be7 11.d3 a6 (11...a5 12.b5 Na7 13.Rc1 Nb5 14.a4+=) 12.Nbd2 Nd5 13.Bg7 Rg8 14.Bb2 Rg2 15.Kf1 (15.Rag1 Rg6+=) 15...Rg6= 16.e4 (16.Rc1 Kd7=) 16...Nf4+= 17.Ne5 (17.d4 Rd8+=) 17...Ne5 18.Be5 Nd3 19.Bc7 Rc8 20.Bg3 Bf6 21.Rd1 Nb2 22.Re1 Rc2 23.Nb1 (better is 23.Nb3 Nc4 24.e5–/+) 23...Nd3–+ 24.Rd1 Rg3! 25.fg3 (25.fg3 Nf2 Combination; 25.hg3 Nf2 Combination) 25...Nf2 26.Rd2 Rc1 27.Kf2 Rh1 28.Ke3 (28.Ke2 Rb1 29.Rc2 Bb2 30.Rc8 Kd7–+) 28...Rb1 29.Rd3 Bb2 30.Ke2 Ra1 31.b5 (31.Rb3 Ra2–+) 31...Ra3 32.Ra3 Ba3 33.ba6 ba6 34.g4 a5 35.Kd3 a4 36.Kc3 (36.h3 f6–+) 36...Ke7 37.e5 (37.Kc4 Bd6 38.g5 a3–+) 37...Kd7 (37...Bd6!? 38.Kc4–+) 38.g5 Kc6 39.Kc4 Bf8 40.h4 a3 41.Kc3 Kd5 42.h5 Ke5 43.g6 (43.Kc2–+) 43...fg6 44.hg6 hg6 45.Kc2 g5 46.Kd3 a2 47.Ke3 a1Q 48.Ke2 (48.Kd3 Qb1 49.Ke2 Kf4 50.Kf2 Qb2 51.Ke1 Ke3 52.Kf1 Qf2) 48...Kf5 (48...Qc3 49.Kf2 Bc5 50.Ke2 g4 51.Kd1 Bb4 52.Ke2 Qf3) 49.Kd3 Qb2 50.Kc4 Qb1 (50...e5 51.Kd3 e4 52.Kc4 Qb4 53.Kd5 Qc5) 51.Kc3 (51.Kd4 Qc2 52.Ke3 Bc5 53.Kf3 Qf2) 51...Kf4 (51...Bb4 52.Kc4 Ba5 53.Kc5 Qd3 54.Kc6 Qd5) 52.Kc4 (52.Kd4 g4 53.Kc4 Ke3 54.Kc3 e5 55.Kc4 Qd3) 52...Ke3 53.Kc3 g4 54.Kc4 Qb4 0–1. SSechess_202 – Ant_416, WB, 2000.

9.Qe2 Qe2 10.Ke2 Be7 11.Bf6 Bf6 12.d4 e5 =.

9.Qe2 Qg6 10.0–0 idea 11.b5, 12.Ne5.

9.Bf6 gf6 10.Qe2 0–0–0 (10...Qg6 11.Rg1=) 11.Qd3 Rd3 12.Ke2 Rd7 13.Nc3 (13.b5 Ne5+=) 13...Ne5 (13...Rg8 14.b5 Na5 15.Rhg1=) 14.d4+= Nc4 (14...Nf3 15.Kf3 f5 16.Rac1+=) 15.Ne4 Be7 16.Rhc1 Nb6 (16...f5 17.Nc5 (17.Rc4 fe4 18.Ne5 Rd5+–) 17...Bc5 18.dc5+/–) 17.g3 (17.Kd3 Rg8 18.Nc5 Bc5 19.bc5 Nd5+/–) 17...Rg8 18.Ra2 (18.h3 f5 19.Nc5 Bc5 20.bc5 Nd5+/–) 18...Rd5 (18...f5 19.Nc5 Rdd8 20.Ne5+/–) 19.Rac2+/– c6 20.Nc5 Nd7 (20...f5 21.Ne5+/–) 21.Nd3 (21.e4 Rd6+/–) 21...a5 22.e4 Rb5 23.a4 Rb4 (23...Rh5 24.Nf4 Rh6+–) 24.Nb4+– Bb4 (24...ab4 25.d5 ed5 26.ed5+–) 25.Kd3 (25.d5 ed5 26.ed5 Re8 27.Kf1 c5+–) 25...Rd8 (25...Nb6 26.Ra2+/–) 26.Ke3 (26.h3 Nb6 27.Ra1 c5+/–) 26...Kc7 (26...Nb6 27.Ra2+/–) 27.h3 (27.d5 Kd6 28.dc6 Bc5 29.Ke2 Kc6+–) 27...Nb6+/– 28.Ra1 (28.Ra2 f5+/–) ½–½. Woschkat,Karl_Heinz – Bechler,Falk, DESC, 2001.

7.Bc4 Bd6

8.Bb5 0–0 =.

8.d4 0–0

9.0–0 a6 10.Nbd2 Ne4 (10...Qd7 11.Nb3=) 11.Ne4 Be4 12.Nd2 Bd5 (12...Bg6 13.f4=) 13.Bd3 (13.e4 Bc4 14.Nc4 Qd7+=) 13...f5= 14.Qh5 Rf6 15.f4 Rh6 16.Qe2 g5 (16...Qh4 17.g3 Qe7 18.e4 fe4 19.Ne4=) 17.Nc4 gf4 18.ef4 Qh4 19.g3 Rg6 20.Qf2 (20.Qe3!?=) 20...Kf7 21.Rae1 Rag8 (better is 21...Rg3! 22.Qg3 Rg8 23.Nd6 cd6–/+) 22.Re3= h5 (22...Be7 23.Rc1=) 23.Nd6+= cd6 24.Rc1 Qd8 25.b5 (25.Be2 Rh6 26.Bf3 Ne7=) 25...Na5 (better is 25...ab5!? 26.Be2 Rh6=) 26.ba6+/– Nb3 (26...h4 27.ab7 hg3 28.hg3+=) 27.Rc2 (27.Rc3 h4 28.ab7 hg3 29.Rg3 Rg3 30.hg3 Qb6+/–) 27...Qb6 Attacking the isolated pawn on d4 (better is 27...ba6!? 28.Be2 h4+/–) 28.ab7+– Bb7? (better is 28...Qb7 29.Be2 Na1 30.Bh5 Nc2 31.Qc2 Ke7 32.Bg6 Rg6+/–) 29.Bc4 h4 (29...Nd4 30.Bd4 Qd4 31.Be6 Re6 32.Rc7 Kf8 33.Re6 Qd1 34.Qe1 Qd4 35.Qe3 Qe3 36.Re3+–) 30.Be6! (worse is 30.Bb3 hg3 31.hg3 Be4+–) 30...Re6 31.Re6 hg3 32.hg3 Rh8 Threatening mate: Rh1 33.d5 (33.d5 Qf2 34.Rf2 Bd5 35.Rf6 Ke7 36.Re2 Be4 37.Rf7 Kf7 38.Bh8+–; 33.Rf6 Ke7 34.Re2 Be4 35.Re6 Kf7 36.R6e4 fe4 37.Re4 Qb7+–) 1–0. Nicklich,Wolfgang – Schwarzbach,Walter, corr DDR–ch M634, 1981.

9.0–0 Re8 10.Nbd2 a6 11.Re1 Ne7 12.e4 b5 13.Bb3 Bg4 14.e5 Nf5 15.ed6 Qd6 16.Ne4 Ne4 17.Re4 Nh6 18.d5 ed5 19.Qd5 Qg6 20.Rae1 Be6 21.Re6 fe6 22.Re6 Re6 23.Qa8 1–0. Hernan Ruiz – Salinas Barreteaga,R, IIICEAPE, 1991.

9.0–0 h6

10.Nc3 a6 A) 11.Re1 Bg4 (11...Ne4 12.Ne4 Be4 13.Nd2 Bg6 14.e4 Bf4+=) 12.Qe2 Qe7 13.h3 Bh5 14.Rac1 Rfd8=; B) 11.d5 Ne5 12.Ne5 Be5 13.de6 Be6 14.Be6 fe6=; C) 11.Qe2 Qd7 (11...Re8 12.Rfd1 b5 13.Bb3 Bg4 14.h3 Bh5+=) 12.Rfd1 b5 13.Ba2 Ne4 14.d5 ed5+=.

10.Nbd2 a5 11.b5 Na7 12.Qe2 Ne4 13.Ne4 Be4 14.Rfc1 c6 =.

10.Nbd2 a6 11.Ne5 Ne7 (11...Na7 12.Re1 b5 13.Bb3 Ne4 14.Ne4 Be4+=) 12.Qf3 b5 13.Bb3 Be5 14.de5 Bg4 =.

10.Nbd2 Qd7 11.Ne5 (11.Nb3 Rfd8 (11...Qc8 12.Nc5 a6 13.Qe2 Re8 14.Ne5 Be5+=; 11...Ne7 12.Nc5 Qc8 13.Re1 Ned5 14.e4 Bc5+/–; 11...Rfb8 12.Nc5 Qe7 13.Qe2 b6 14.Na6 Rd8+=) 12.Nc5 Bc5 13.dc5 Qe7 14.Qe2 a6+=) 11...Be5 12.de5 Ng4 (12...Rfd8 13.ef6 Qd2 14.Qd2 Rd2+/–) 13.Nf3 Qd1 14.Rfd1 h5 (14...Bc2+/–) 15.b5 Na5 16.Ba2 Rfd8 17.Nd4 Bh7 (17...Ne5 18.Nf5 Nec4 19.Bg7 ef5 20.Bd4+/–) 18.Rdc1 Rac8 19.Bc3 b6 20.Ne6! Re8 (20...fe6 21.Be6) 21.Ng5 Bg6 22.e6 Nh6 23.Rd1 Nb7 24.ef7 Nf7 25.Rd7 Nbd6 26.Bb4 Red8 27.Re7 Kf8 (27...Rf8 28.Be6 Rcd8 29.Bd6 Rd6+–) 28.Rf7 Bf7 29.Nf7 1–0. Buss,Michael – Pampel,William, 95NS18 Indianapolis, 2003.

10.Qe2 a5 11.b5 Na7 12.Nbd2 Ne4 13.Ne4 Be4 14.Rfc1 c6 =.

10.Qe2 a6 A) 11.Rc1 Ne7 12.Nc3 Ned5 13.Ne5 Nc3 14.Bc3 Ne4=; B) 11.Nbd2 b5 (11...Bg4 12.h3 Bh5 13.Bd3 Nd5 14.Ne4 Bg6+=) 12.Bb3 Ne4 13.Rac1 Ne7 14.Ne4 Be4=; C) 11.Nc3 Re8 (11...Qd7 12.Rfd1 b5 13.Ba2 Ne4 14.d5 ed5+=) 12.Rfd1 Bg4 13.h3 Bh5 14.Rac1 Qe7=.

6.a3 Be7

7.b5 Na5 8.cd5 ed5 9.Qa4 b6 (9...c5 10.Bc3 Nc4 11.Bc4 dc4 12.Ne5=) 10.Nd4 Qd7 (10...Bd7 11.Nc6 Nc6 12.bc6=) 11.Nc3 (11.Nf5 Qf5 12.Be2 0–0+=) 11...Nb7 (11...Bg6 12.Be2=) 12.Nc6 (12.Nf5 Qf5 13.Rc1 0–0+=) 12...Nc5= 13.Qf4 (13.Qh4 a6=) 13...Bd6 14.Qg5 Bg6 (14...Rg8!?=) 15.Nd5+/– Nce4? (better is 15...Nd5!? 16.Qd5 Be4+=) 16.Nf6+– gf6 17.Qd5 Nf2 18.Bf6?? (better is 18.Ne5 fe5 19.Qa8 (19.Kf2?! Qf5 20.Ke1 Qe4 21.Qe4 Be4=) 19...Ke7 20.Qh8 Nh1 21.Be5+–) 18...Nh1–/+ 19.Ne5 (19.e4 Rg8 20.Ne7 Be7 21.Qa8 Qd8 22.Qc6 Kf8–/+) 19...c6 20.Qf3 (20.Qc6 Qc6 21.bc6 Rg8–/+) 20...Be5–+ 21.Be5 f6 (better is 21...Rg8 22.bc6 Qe6–/+) 22.Bf6? (better is 22.bc6 Qe6 23.Qf6 Qf6 24.Bf6–/+) 22...Rf8–+ 23.Rc1 Rd8 Threatening mate... how? 24.d4 c5 (24...cb5?! 25.Qf4 Qf5 26.Qf5 Bf5 27.Bb5 Bd7 28.Bd8 Bb5 29.Bh4–+) 25.g4 Qd5 (25...cd4 26.Bg2 d3 27.Kd2 Qb5 28.Rc7 Qa5 29.Kd1 Nf2 30.Qf2 Qa4 31.Ke1 d2 32.Qd2 Rf6 33.Bd5–+) 26.Qf4 Qe6 27.g5 Rf6 28.gf6 Rd4 Do you see the mate threat? 29.Qf3 Re4 (29...Qb3 30.Bg2 Qa3 31.Qa8 Kf7 32.Bd5 Kf6 33.Qf8 Kg5 34.h4 Kg4 35.Qf3 Kh4 36.Qh1 Kg5 37.ed4 Qc1 38.Kf2 Qd2 39.Kg1 Qd4 40.Kh2 Qh4 41.Kg1 Qe1 42.Kh2 Qh1 43.Kh1–+) 30.Rc3 (30.Rc2 Re3 31.Qe3 Qe3 32.Re2 Qe2 33.Be2 Be4–+) 30...Qe5 31.Rd3 c4 (31...Qh2 32.f7 Bf7 33.Qe4 Kf8 34.Rd8 Kg7 35.Bd3 Qg1 36.Kd2 Qf2 37.Be2+/–) 32.f7 Bf7 (32...Bf7 33.Rd2 c3–+) 0–1. Sokolski,Aleksey P – Podkrajsek,Janez, Yugoslavia–USSR, 1970.

7.d4 Bd6 8.c5 Bf8 9.Bb5 Qb8? (better is 9...Nd7+=) 10.Ne5+– Qc8 11.Nc6 Qd7 (11...bc6 12.Bc6 Nd7 13.Ba8 Qa8 14.Nc3+–) 12.Na7! c6 (12...Ra7 13.Bd7 Discovered attack) 13.Nc6! bc6 14.Be2 Be7 15.a4 White prepares b5 15...0–0 16.0–0 Be4 (16...Rab8 17.b5 cb5 18.ab5 Rb5 19.Bb5 Qb5 20.Bc3+–) 17.Nd2 Bg6 18.b5 Qb7 19.b6 h5 (19...Nd7+–) 20.a5 Nd7 (20...h4+–) 21.a6 (21.a6 Qb8 22.a7+–) 1–0. Pcmvr – Peta, playchess.de, 2005.

7.cd5 Qd5 8.b5 Nd8 =.

7.cd5 Qd5 8.Nc3 Qd6 =.

7.d4 0–0

8.Nc3 Bg4 =.

8.Nbd2 a5 9.b5 Na7 10.Ne5 =.

8.Nbd2 a6 9.Rc1 Ne4 (9...Qd7 10.Be2=) 10.cd5 (10.Ne4 de4 11.d5 ed5 12.cd5 Na7=) 10...ed5 11.Ne4 Be4 12.Bd3 Bd3 13.Qd3 Bf6 (13...Bd6 14.0–0=) 14.0–0 Re8 15.Rc5 (15.Rfe1 Qd6=) 15...Ne7 (15...Be7 16.Rc3=) 16.Ne5 (16.Rfc1 c6=) 16...Be5 17.de5 b6 (17...c6 18.e4=) 18.Rc2 c6 19.Rfc1 (19.Rd1 a5+=) 19...a5= 20.e6 (20.Qd4 ab4 21.ab4 Ra4=) 20...fe6 (20...f6 21.Bd4=) 21.Qd4+= The mate threat is Qxg7 21...Nf5 22.Qe5 ab4 23.ab4 Qd6 (23...c5!? 24.bc5 bc5 25.Rc5 Qb8+=) 24.Rc6+/– Qb4 25.Re6 Red8 (25...Qe4 26.Qe4 de4 27.Rb6+/–) 26.Rec6 (26.Rec6 Kh8 27.Bc3+/–; 26.Qf5?! Qb2 27.Qb1 Ra2=) 1–0. Nebe,Lutz – Siebert,Joachim, corr, 1987.

8.Nbd2 Ne4 9.Be2 (9.Ne4 de4 10.Nd2 Bd6=) 9...Bf6 (9...dc4 10.Bc4 Nd6 11.Qe2=+) 10.Ne4 Be4 11.Bd3 Bd3 12.Qd3 Re8 (12...dc4 13.Qc4 a6 14.Rc1=) 13.e4 (13.0–0 dc4 14.Qc4 a6=) 13...de4 14.Qe4 e5 (better is 14...Qd6!?=) 15.de5+/– Ne5 (15...Qe7 16.0–0 Be5 17.Ne5 Ne5 18.Rae1+/–) 16.Ne5 Be5 17.Be5 f6 (17...Qe7 18.f4 f6 19.0–0 fe5 20.Rae1+/–) 18.0–0 c6 19.f4 fe5 20.fe5 Re6 21.Rae1 Qe7 22.c5 Re8 23.Qf4 h6 24.h3 Qc7 25.Qc4 Qe7 26.Rf5 Rf8 27.Rf8 Kf8 28.Qf4 Kg8 29.Qd4 Qe8 30.Re2 Qe7 31.a4 a6 32.a5 Qe8 33.Qc4 Kh7 34.Qe4 Kg8 35.g3 Qe7 36.Qf4 Qe8+/– 37.Kg2 Qe7 38.Re1 Qe8+/– 39.Qd4 Qe7 40.h4 Qe8 41.Qc4 Kh8 42.Qf4 Kg8 43.Qf5 Qe7 44.Re3 Qe8 45.Kf3 Qe7 46.h5 Qe8 47.g4 Qe7 48.Kf4 Kh8 49.Rd3 Qh4?? 50.Qe6+– Qf2 51.Rf3 Qh2 52.Ke4 Qe2 53.Re3 Qg2 54.Kf5 (54...Qc2 55.Re4+–) 1–0. Pietrzak,Dorota – Helbig,Doreen, corr Ol ladies, 1994.

8.cd5 Qd5 9.Nc3 Qd6 =.

6.Qa4 Nd7

7.a3 Nb6 8.Qb3 dc4 9.Bc4 Nc4 10.Qc4 Qd3 11.Qc3 (11.Qd3 Bd3 12.Nc3 Rd8=+) 11...0–0–0 12.Nh4 Qe4 (12...Be4!?–/+) 13.Nf5= Qf5 14.d4 Qb5 (14...a5 15.ba5 Qa5 16.Qa5 Na5 17.Nd2=) 15.Nd2 e5 (15...Qd5 16.Nf3=) 16.Qc4 (16.de5? Nb4 17.ab4 Bb4–+) 16...Qc4 17.Nc4 ed4 18.b5 de3 (18...Nb8 19.Bd4 Rd5 20.a4+=) 19.bc6+/– ef2 20.Kf1 bc6 21.h3 (21.Kf2 Bc5 22.Kf3 Rd3 23.Ke4 Rd5+/–) 21...f6+= 22.Kf2 Bc5 23.Kf3 Rd3 24.Kf4 Rhd8 25.Rhe1 R8d5 26.Rac1 h5 27.Ke4+= Rg3 28.Re2 h4 29.Rf1 Rgg5 30.Rc2 Kd7 31.Re2 Ke6 32.Rf4 Rg3 33.Rh4 Rdg5 34.Bd4+– Bd6 35.Bf2 Rb3 36.Ba7 c5 37.Re3 Rg3–/+ 38.Rh5 Rge3?? 39.Ne3= g5 40.Rh8=+ Ra3 41.Re8 Kd7 42.Ra8 Kc6 43.Ng4 Kb7 44.Rg8 Ra7 45.Nf6 Ra4 46.Kf3?? Rf4–+ 47.Ke2 Rf6 48.Rg5 Kb6 (49.h4 Re6 50.Kd1 Be7–+) 0–1. Sokolowski (1800) – Piszcz (1800), corr 1. AMM Poland, 1992.

7.c5? a5–+ 8.d4 Nb4 (better is 8...ab4 9.Qb3 b6 10.cb6 Na5–+ (worse is 10...Nb6 11.Bb5 Qd7 12.Nbd2+/–; 10...cb6?! 11.Nbd2–/+)) 9.Ne5? (better is 9.Na3–+) 9...Nc2 10.Kd1 (10.Kd2 Na1 11.Nc3 c6 12.Nd7 Kd7 13.Ba1 b6 14.cb6 Qb6–+) 10...Na1 11.Nd3 (11.Na3 c6 12.Nd7 Kd7 13.Ba1 b6–+) 11...c6 (11...Qh4 12.Ke1 Bc5 13.Ba1–+) 12.Ba1 (12.Nc3 Qf6 13.Ke1 Qg6–+) 12...g6 (12...Qf6!? 13.Nc3 Bd3 14.Bd3 Qf2 15.Re1 Qg2 16.Qc2–+) 13.Nd2 (13.Nc3 Bg7 14.Qa3 e5–+) 13...Bg7 14.Nf4 (14.Qb3 Rb8–+) 14...0–0 (14...Nc5 15.Qa3 Na6 16.Bc3–+) 15.f3 (15.Be2 Nc5! 16.dc5 Ba1–+) 15...e5 16.Nd3 (16.de5 Nc5 17.Qa3–+) 16...Bd3 17.Bd3 Qg5 18.Re1 Qg2 19.Rf1 (19.h4 Qh3–+) 19...Qh2 20.f4 (20.Qb3 Rab8 21.Qc3 ed4 22.ed4 Rfe8–+) 20...ef4 21.e4 (21.ef4 Nc5! 22.dc5 Ba1–+) 21...Nc5! 22.Qc2 (22.dc5 Ba1 Pinning (22...Ba1 Deflection)) 22...Nd3 23.Qd3 Qh5 (23...Rfe8 24.e5–+) 24.Kc2 (24.Qe2 Qg5 25.Bb2 de4 26.Qe4 Qb5–+) 24...Rfc8 25.Rf4 (25.Qf3 Qf3 26.Rf3 g5–+) 25...c5 26.Kb2 0–1. Haroldlee123 – UncleBulgaria, ChessWorld.net, 2015.

7.Nd4 Nb6 8.Qb3 +=.

5.c4 Be7

6.Qb3 0–0 7.d3 c5 (7...dc4 8.Qc4 Nbd7 9.Nc3+=) 8.b5 (8.bc5 dc4 A) worse is 9.Qb7 Nbd7 10.Bd4 cd3+= (10...Bd3?! 11.c6 Qa5 12.Bc3–/+); B) 9.Qc4 Qa5 10.Nbd2 Bc5 11.Bc3+=) 8...dc4+= 9.dc4 Qc7 10.Nbd2 Nbd7 11.Be2 b6 12.0–0 Rad8 13.Rfe1 Bd6 14.a4 Ne5 15.a5 Nf3 16.Nf3 Ng4 17.g3 Ne5 18.Qc3 Nf3 19.Bf3 f6 20.ab6 ab6 (worse is 20...Qb6 21.Ra6 Qb8 22.Qa3+/–) 21.Ra6 Be5 22.Qb3 Bb2 23.Qb2 e5 24.Bd5 Kh8 25.e4 Bc8 26.Ra4 Qd7 27.Rea1 Qh3 28.Qe2 Bg4 29.Qf1 Qh5 30.Ra7 Bf3 31.Rb7 Rd6 32.Ra6 f5 (32...Be4!? 33.Be4 Rd1 34.Rab6 Rf1 35.Kf1 Qh2=) 33.Rbb6+= Rb6 34.Rb6 fe4 (34...Be4 35.Rc6+/–) 35.h3 h6 36.Kh2 e3? (better is 36...Bg4!? 37.Be4 Be2+=) 37.fe3+/– Rf6?? (better is 37...Qg5 38.Bf3 Qe3+–) 38.Rf6+– gf6 39.Qf3 Qf3 (39...Qg6+–) 40.Bf3 (40.Bf3 Kg7 41.b6+–) 1–0. ferminkatcho (1715) – robinello (1660), kurnik, 2014.

6.Qb3 c6 7.d3 0–0 8.Nbd2 Nbd7 9.Be2 h6 (9...a5 10.a3+=) 10.0–0= Bh7 11.Rfe1 a5 12.a3 ab4 13.ab4 Qb6 14.Bf1 (better is 14.c5!? Qc7 15.Qc3=) 14...Qb4–/+ 15.cd5 ed5 16.h3 Qb3 17.Nb3 Nc5 (17...Rfb8 18.Be2–/+) 18.Nc5+= Bc5 19.Bf6 gf6 20.g3 Bf5 21.Rec1 Bb4 22.Rab1 c5 23.Rb3 Ra2 24.d4 b6 25.dc5 bc5 26.Rd1? (better is 26.Nd4 Bd7 27.Bg2–/+) 26...Bc2–+ 27.Rb4 (27.Rbd3 Bd3 28.Bd3 Rfa8–+) 27...Bd1 28.Rf4 Bf3 29.Rf3 c4 30.Rf6 Rc8 0–1. ferminkatcho (1845) – grom98 (1830), kurnik, 2014.

6.Qb3 Nbd7 7.d3 0–0 8.Be2 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 Qa8 12.Na3 h6 13.0–0 c5 14.b5 b6 15.Bb2 Qb7 16.Nh4 Bh7 17.g3 Rd8 18.f4 Qc7 19.Nc2 d4 (better is 19...Qd6!?=) 20.ed4+= cd4 21.Nd4 Nc5 22.Qc2 Rd7 23.Ra1 g5 (23...Qd6 24.f5+/–) 24.Ng2 gf4 25.gf4 (25.Nc6 Bd3 26.Ne7 Kg7 27.Bd3 Nd3 28.Bf6 Kf6+–) 25...Bg6 (25...Kg7 26.Qd2+/–) 26.Rf1 (26.Nc6 Kf8 27.Ra8 Kg7 28.Ne7 Re7 29.Bf6 Kf6 30.Qc3 e5+–) 26...Bh5 (26...Bd6 27.Kh1+/–) 27.Bh5 (27.Nc6 Be2 28.Qe2 Ne8+–) 27...Nh5 28.Qe2 (28.Nc6 A) 28...Rd3? 29.Qe2+– (29.Ne7?! Qe7 30.Qe2 Ng7+=); B) 28...Ng7 29.Rf3 Bf8+–) 28...Bf6+/– 29.Qh5 Bd4 30.Bd4 Rd4 31.Qh6 Rd3 32.Qg5 Kf8 33.Qh6 Kg8 34.Qg5 Kf8 35.Qh6 (35.f5 Qe5 36.Qf4 Qd4 37.Qd4 Rd4 38.fe6 Ne6+/–) 35...Kg8 36.Qg5 (36.Ne1 Rd7+/–) 36...Kf8 37.Qh6 Kg8= ½–½. Agrest,Roman (2160) – Sandklef,Ake, SWE–ch Seniors, 2007.

6.c5 c6 7.Nc3 (7.Nd4 Bg6=+) 7...Nbd7 8.Qb3 b6 9.Nd4 bc5 10.bc5?? (10.Nc6!? c4 11.Qa3=) 10...Nc5?? (better is 10...Rb8 11.Nf5 Rb3 (11...ef5?! 12.Qc2=+) 12.Ng7 Kf8 13.Ne6 fe6 14.ab3 Nc5–+) 11.Qd1=+ Nd3 (11...Rc8 12.Nf5 ef5 13.Rb1=+) 12.Bd3 Bd3 13.Qa4 (13.Nc6 Qb6 14.Ne5 Qb2 15.Nd3 Qa3=+) 13…0–0?? (14.Nc6 Qc7 15.Ne7 Qe7+/–; better is 13...Qd7 14.Nc6 Bd6=+). Sander – Katzensteiner, corr SOK–88–20, 1989.

6.cd5 Nd5 7.Bg7 Rg8 8.Bc3 +=.

6.Nh4 Bb4 7.Nf5 ef5 8.Qb3 =.

6.Nh4 Bg4 7.Qb3 c6 8.h3 Bh5 9.g4 Bg6 10.Ng6 hg6 11.Bg2 ½–½. Jose Luis – Reg_UK, ChessWorld.net, 2006.

6.a3 0–0

7.d4 c6 8.Be2 dc4 9.Bc4 b5 10.Bd3 a5 11.Bf5 ef5 12.ba5 Qa5 13.Nc3 Ne4 14.Qc1 Nd7 (14...Nc3 15.Bc3 Ba3 16.Ba5 Bc1 17.Rc1 Ra5 18.Ke2=+) 15.0–0= Rfc8 16.Qc2 Ndf6 17.Rfc1 Qb6 (17...c5 18.Nh4 g6 19.Nf3=) 18.Ne4+= fe4 19.Nd2 c5 20.Ne4 (20...c4 21.Nc3+=). mrkt – Reg_UK, ChessWorld.net, 2006.

7.d4 Nbd7 8.Nbd2 c6 9.Be2 h6 (9...a5 10.b5=) 10.0–0= dc4 11.Nc4 Ne4 (11...Nb6 12.Rc1=) 12.Qb3 (12.Bd3 Ndf6+=) 12...Nb6= 13.Rfd1 Nc4 14.Qc4 (14.Bc4 Bh4 15.g3 Be7=) 14...Qd5 (14...a5 15.Ne5=) 15.Ne5 (15.Rac1 a5 16.b5 cb5 17.Qb5 Rac8=) 15...Qc4 (15...f6 16.Qd5 ed5 17.Nd3=) 16.Nc4+= Nd6 17.Na5 (17.f3 Nc4 18.Bc4 b5+=) 17...Bd8 (17...Rfd8 18.Rac1=) 18.Rdc1 Ba5 19.ba5 a6 (19...Rac8 20.f3+=) 20.a4 (20.f3 Rad8+=) 20...Rfd8= 21.f3 Bg6 22.Ba3 Rd7 23.Ra2 f5 (23...Nf5 24.Kf2=) 24.Rb2 Nf7 (24...f4 25.ef4 Nf5 26.Bc5+/–) 25.Bc4 Nd8 26.Bc5 Rb8 (26...Kf7 27.Kf2+/–) 27.Ba7 (27.Ba6!? Ra8 28.Bc4 Ra5 29.Bb6 Ra4 30.Bd8 Rd8 31.Be6 Kh7 32.Rb7+–) 27...Ra8 28.Bb6 Re7 (28...Kf7 29.f4 Kf6 30.Bd8 Rad8 31.Rcb1+/–) 29.f4 Nf7? (29...Bf7 30.Kf2+/–) 30.Rcb1 (better is 30.Bc5!? Rc7+–) 30...Nd6+/– 31.Bd3 Ne4 (31...Bh5 32.Bc5 Rd8 33.Bc4+–) 32.Be4 fe4 33.Bc5 Rd7 34.Rb7 Rb7 35.Rb7 Bf5 36.h3 h5 (36...Bg6 37.Bd6+–) 37.Rc7 Kh7 38.Rc6 Kh6 (38...Kg6 39.d5+–) 39.d5 g5 (39...Kg6 40.Bd4+–) 40.de6 gf4 41.e7 Kg7 42.Bd4 Kg8 (42...Kh7 43.Rf6 Bg6 44.ef4+–) 43.ef4 (better is 43.Rf6!? Bd7 44.Rd6 Re8 45.Rd7 fe3+–) 43...Bd7 (43...Re8+–) 44.Rd6 1–0. Lehr,Thomas – Boettcher,Ullrich, Germany, 1995.

6.Nc3 0–0

7.a3 a5 8.b5 dc4 9.Bc4 Nbd7 =.

7.a3 Nbd7 =+.

7.Qa4 dc4 8.Qb5 Nc6 =+.

7.Qb3 h6 8.Be2 Bh7 (8...dc4 9.Qc4 Nbd7 10.0–0=) 9.0–0= Nc6 (9...dc4 10.Qc4 Nc6 11.b5=) 10.b5 (10.cd5!? Nd5 11.Nd5 ed5 12.b5+=) 10...Na5= 11.Qa4 Nc4 12.Bc4 dc4 13.Rfe1 (13.Ba3 Ba3 14.Qa3 Bd3–+) 13...Qd3 14.Ne5 Qd2 15.Re2 (15.Nc4 Qc2–/+) 15...Qd6 16.Nc4 Qb4 17.Qb4 Bb4 18.Rd1 Rad8 19.Red2 Rd2 20.Rd2 Ne4 (20...Nd5 21.Nd5 ed5 22.Rd5 a6=) 21.Ne4=+ Be4 22.Rd7 c5 23.Nd6 Bg6 24.Nb7 c4 25.Bd4 Bb1 26.Nc5 e5= 27.Na6 ed4 28.Nb4 de3 29.fe3 Ra8 30.a4 f5 31.Kf2 Be4 32.Na2 g5 33.Nc3 Bc2 34.a5 Bd3 35.Rc7 h5 36.Kf3 h4 37.Kf2 Kh8 38.b6+= ab6 39.ab6 Ra1 40.e4 fe4 41.b7 e3? 42.Ke3+– Re1 43.Kd4 Re8 44.Rc8 Rc8 45.bc8Q Kg7 46.Ne4 Kf7 47.Nc5 Bc2 48.Qe6 Kg7 49.Qe5 Kh6 50.Qf6 Bg6 51.Ne6 c3 52.Qh8 Bh7 53.Qg7 Kh5 54.Qg5# 1–0. SuperForte 5 Mhz – REXChess 80286 12Hz, 1994.

7.c5 a5 8.a3 ab4 9.ab4 Ra1 10.Qa1 Nc6 11.Qa4 (11.Qa3 d4 12.Na2 Qa8=) 11...d4 12.Nd1 d3 (12...de3 13.Ne3 Be4 14.Be2=+) 13.b5 Nb8 14.Bd4 Nbd7 15.Qc4 (15.c6 Nb6 16.Qb3 bc6 17.bc6 Qd5 18.Qd5 Nfd5=+ (< 18...ed5 19.Ne5+/–)) 15...Qa8 (15...Be4 16.Bd3 Bf3 17.gf3=) 16.Bd3= Bd3 17.Qd3 Bc5 18.Bc5 Nc5 19.Qc4 (19.Qc2 b6=) 19...Nce4 (19...Qa3 20.0–0=) 20.0–0 (20.Qc7 Rc8 21.Qe7 Nd5=) 20...Qa5 21.Nc3 (21.Qd3 Nd6=) 21...Nc3=+ 22.dc3 Qb5?? (better is 22...Nd5=+) 23.Qb5+– b6 (23...Rb8 24.Ne5+–) 24.Qc6 h6 25.Ra1 b5 26.Ra8 Ra8 27.Qa8 Kh7 28.Qf8 Ne4 29.Qf7 (29...Ng5 30.Ng5 hg5 31.Qe6+–) 1–0. Gerold – Friedrich, corr Germany, 1999.

7.c5 b6 8.cb6 ab6 9.b5 =+.

7.c5 b6 8.d4 =+.

7.c5 b6 8.Nd4 =+.

7.c5 Nbd7 8.Nd4= c6 (8...a5 9.Nf5 ef5 10.a3=) 9.Nf5 ef5 10.d4 Ne4 (10...f4 11.ef4 Re8 12.Be2+=) 11.Bd3 Ndf6 12.0–0 Nc3 (12...Re8 13.a4+=) 13.Bc3 Ne4 14.Bb2 Qd7 15.f3 Nf6 16.a4 b6 (16...Qe6 17.Qd2+=) 17.Qc2 g6 18.b5 (18.cb6 ab6 19.a5+/–) 18...cb5 (18...Rfc8 19.Rae1+=) 19.ab5+/– Rfc8 20.c6 Qc7 (20...Qe6 21.Qd2+/–) 21.Ba3 (21.Rfc1 Bd6 22.g3 Re8+/–) 21...a5 (21...Ba3 22.Ra3 f4 23.e4+/–) 22.ba6 Ba3 23.Ra3 Qc6 24.Qc6 Rc6 25.Rb1 Re6 26.Kf2 Kf8 27.Rab3 (27.h3 Ra7+/–) 27...Nd7 28.Rc1 Ra7 29.Rbc3 1–0. Hind,Alan – Wong,Ray, corr 3GMM–22, 1996.

7.c5 Nbd7 8.Nd4= Bg4!? 9.f3 Bh5 =.

7.c5 Nbd7 8.Nd4= Bg6 9.c6+= bc6 10.Nc6 Qe8 11.Ba6 (11.Nb5!? Nb8 12.Ne7 (12.Nca7? Qd7–+) 12...Qe7 13.Bf6 gf6 14.Qg4+=) 11...Bd6= 12.Bb7 Rb8 13.Nb8 Qb8 14.Ba6 (14.Bc6 Ne5 15.Bb5 c6=) 14...Qb4=+ 15.Bc1 (15.Na4 Nc5 16.Nc5 Qb2=+ (< 16...Qc5 17.Bf6 gf6 18.a4=)) 15...Nc5 (15...d4 16.ed4 Qd4 17.Be2–/+) 16.Be2 Qh4 (16...d4 17.ed4 Qd4 18.0–0–/+) 17.h3 (17.g3 Qh3 18.d4 Nce4–/+) 17...Nd3 (17...d4 18.Nb5 Be5 19.Ba3–/+) 18.Bd3 Bd3 19.a4 (19.Qa4 Qg5 20.g3 Ne4 21.Ne4 de4–+ (21...Be4?! 22.Rh2–/+)) 19...Ne4 (better is 19...d4!? 20.ed4 Ne4–+) 20.Ne4–/+ de4 21.Ba3 (21.Bb2!?–/+) 21...Bg3!–+ 22.Rf1 (22.fg3 Qg3) 22...Bf1 (22...Qf6 23.Be7 Qe7 24.fg3–+) 23.Kf1 (23.fg3 Qf6 24.Be7 Qe7 25.Kf1 Rd8–+) 23...Qf6 24.f4 Rd8 (24...ef3 25.gf3 Rd8 26.Bc5–+) 25.Rb1 e5 26.Bb2 Qa6 27.Kg1 ef4 28.Be5 Qg6 29.Bc7?? (better is 29.ef4 e3 30.d3–+) 29...f3! 30.Bg3 (30.Qf3 ef3) 30...Qg3 31.Qf1 Rd2 (32.Rb8 Qb8 33.Qf2 Rd1 34.Qf1 Qg3 35.Qd1 Qg2#) 0–1. Katalymov,Boris N – Platonov,Igor V, Spartak–ch Minsk, 1962.

7.d4 Bb4–/+ 8.Qb3 Nc6 9.c5 a6 10.Be2 b6 11.cb6 cb6 12.0–0 b5 (12...Bd6 13.Ba3 Na5 14.Qb2–/+) 13.Nb5 ab5 (better is 13...Be7!? 14.Qc3 Rc8–/+) 14.Bb5= Nd4 (better is 14...Na7!? 15.Qb4 Qb6=) 15.Nd4+/– (15.Bd4?! Bd6=) 15...Be7 16.Nf5 ef5 17.Bf6 Bf6 18.Rad1 Qc7 (better is 18...d4+/–) 19.Bc6?? (better is 19.Rd5 Rfd8 20.Rfd1+/–) 19...Qc6–+ 20.Rd5 Rfb8 (21.Qd3 f4 22.ef4 Ra2–+) 0–1. Trkn – Frank, itsyourturn.com, 2000.

7.Qb3 Nc6

8.a3 a6 9.d4 =+.

8.a3 Be4 9.cd5 ed5 10.Be2 =.

8.a3 h6 9.d4 Bg4 (9...a5 10.b5 Nb8 11.Be2=) 10.Be2 a5 11.b5 a4 (11...Nb8 12.0–0=) 12.Na4 Na5 13.Qc2 Bf5 14.Qd1 (14.Qc3 Nc4 15.Nc5 b6 16.Bc4 dc4=+) 14...Nc4 15.Bc4 dc4 16.0–0 (16.Rc1 Ra5=+) 16...Bd3–/+ 17.Re1 Ne4 18.Ne5 Qd5 19.f3 (19.Nd3!? cd3 20.b6–/+) 19...Qb5–+ 20.fe4 Ra4 (20...Qa4?! 21.Nd3 cd3 22.Qd3=) 21.Nd3 cd3 22.Rb1 (22.Rc1 Rfa8 (22...Ba3?! 23.Ba3 Ra3 24.Rc7–/+) 23.Qd2 c6–+) 22...Qa6–+ 23.Qb3 c5 24.Bc3 Bh4 25.Rec1 Bg5 26.Kf2 Ra3 27.Qd1 f5 28.e5 Ra2 29.Rb2 c4 30.Qe1 Bh4 31.g3 Rb2 32.Bb2 Bg5 33.Qc3 b5 34.Ra1 Qb7 35.Rf1 Qe4 36.Qc1 Ra8 37.Re1 Ra2 38.Qb1 Qa8 39.Qc1 Qa3 40.Re2 Qb3 41.Rd2 b4 42.h4 c3 43.hg5 Rb2 44.Qa1 Rd2 45.Ke1 Qd5 46.Qc3 Re2 47.Kd1 Qh1 48.Qe1 Qe1# 0–1. SuperForte 5 Mhz – REXChess 80286 12Hz, 1994.

8.a3 d4

9.Nd1 de3!? 10.de3 a5 =+.

9.Nd1 e5 10.b5+= Na5 11.Qa4 c5 12.Ne5 a6 (12...Re8 13.Be2=) 13.Be2+= ab5 14.Qb5 Be4 15.f3 (15.0–0 d3 16.Bf3 Bd6+=) 15...d3 (better is 15...Bc6!? 16.Nc6 bc6=) 16.fe4+/– de2 17.Ke2 (17.Nf2 Re8+=) 17...Ne4+= 18.d3 Nd6 (18...f6!? 19.de4 fe5 20.Be5 Qc8=) 19.Qd7+/– (< 19.Qc5 Nb3 20.Qb4 Na1 21.Ba1 f6=+) 19...Nb3 (19...f6 20.Qd8 Rfd8 21.Nf3+/–) 20.Qd8 Rfd8 21.Rb1 Re8 22.Nd7 Rad8 23.Nb6+– Na5 24.e4 Bg5 25.Re1 Nc6 26.Na4 Nd4? 27.Bd4+– cd4 28.c5 b5 29.cb6 f5 30.Kf3 fe4 31.de4 Re4 32.Re4 Rf8 33.Ke2 Ne4 34.b7 Bf4 35.Kd3 Nf6 36.g3 Be5 37.Nb6 Rd8 38.Nc8 Nd7 39.Ne7 Kf7 40.Nc6 Re8 41.Ne5 Ne5 42.Kd4 Nf3 43.Kc5 Rb8 44.h4 Ke6 45.Ne3 Ke5 46.Kc6 Ke4 47.Nc4 Kd4 48.Rb4 Ne1 49.Nd6 Ke5 50.Re4 Kf6 51.Re1 h5 52.Re8 Rb7 53.Nb7 g5 54.Rg8 gh4 55.gh4 Ke5 56.Rg5 Ke4 57.a4 Ke3 58.a5 Kd4 59.a6 Ke3 60.a7 Kf3 61.a8Q Ke3 62.Rh5 Kf4 63.Qb8 Ke3 64.Qg3 Kd2 65.Rf5 Kd1 66.Rf1 Ke2 67.Rf2 Ke1 68.Qg1# 1–0. Mephisto Mondial12 – REXChess 80286, 1994.

9.ed4 Nd4 10.Nd4 Qd4 =+.

9.Ne2 d3 10.Nf4 =.

9.Ne2 de3 10.de3 a5 11.Rd1 Bd6 12.c5 ab4 13.cd6 cd6 14.ab4 +–.

9.Ne2 de3 10.de3 Qd3 11.Nc3 Qc2 12.Qc2 Bc2 13.Be2 (13.Rc1 Bf5=) 13...Rfe8 (13...a5 14.b5 Nd8 15.0–0=) 14.0–0 (14.Nb5 Rac8=) 14...Rad8 15.b5 Na5 16.Nd4 Bg6 17.f4 (17.Rfd1 e5 18.Nf3 Nb3 19.Rd8 Rd8=) 17...c5 18.bc6 Nc6 19.Rad1 (19.Nc6 bc6 20.Rad1 Ne4=) 19...Bc5=+ 20.Na4 Bd4 21.Bd4 Bc2=+ 22.Nc3? Bd1–+ 23.Rd1 Re7 24.Bd3 Red7 25.Nb5 Ng4 26.Rc1 a6 27.Nc3 Nd4 28.ed4 Rd4 29.Be2 Rf4 30.Rb1 Rd7 31.c5 f5 32.Rb6 e5 33.c6 bc6 34.Rc6 Rd2 35.h3 Ne3 36.Ra6 Rfd4 37.Ra7 Rc2 38.Bh5 Rg2 39.Kh1 g6 40.Bf3 Rg3 41.Be2 Rh3 42.Kg1 Rd2 43.Rc7 f4 44.a4 f3 45.Bc4 Kf8 46.Rc8 Ke7 47.Rc7 Kd8 48.Rc8 Kd7 49.Be2 fe2 50.Kf2 Rh2 51.Kf3 e1Q 52.Rc7 Kc7 53.Nb5 Kc6 54.Na7 Kd5 55.Nb5 Qf2# 0–1. SuperForte5 – REXChess 80286, 1994.

9.Ne2 de3 10.de3 Qd3 11.Qd3 Bd3 12.Ned4 Be4 =.

6.Nc3 dc4

7.Bc4 0–0 8.a3 =+.

7.Bc4 Bb4 8.Nd4 Bc3 9.Bc3 =+.

6.c5 0–0

7.a3 a5 –/+.

7.d4 b6 8.Be2 +=.

7.d4 Ne4 8.Nc3 Bh4 (8...a5 9.b5=) 9.Ne4= Be4 10.Bd3 Nc6 11.a3 (< 11.Nh4 Nb4 12.Be4 de4=+) 11...b6 12.0–0 Bd3 13.Qd3 bc5 (13...Be7 14.Rfc1 Nb8 15.Ne5+=) 14.Qb5+/– (< 14.bc5 Rb8 15.Bc3 Bf6=; < 14.Nh4 c4 (< 14...Qh4 15.dc5 Rfb8 16.Qa6+=) 15.Qc2 Qh4–/+) 14...Nb8 15.Nh4 Qh4 16.Qb7 Nd7 17.Qc7 (< 17.bc5 Rfc8+=) 17...Nb6 18.dc5 Nc4 19.Bc3 Qe4 20.Qg3 f6 21.Rfd1 Qc2 (21...e5 22.Qh3 f5 23.Qf3 Qf3 24.gf3+/–) 22.Rac1+– Qb3 23.Qg4 Rae8 24.a4 Qa4 25.Ra1 Qb3 26.Ra7 Rf7 27.Rf7 Kf7 28.Ra1 Ra8 29.Qh5 Ke7 30.Qd1 Qd1 31.Rd1 Ra3 32.Rc1 Kd7 33.Kf1 Kc6 34.Rc2 Rb3 35.Ke2 Kb5 36.Kd3 Ne5 37.Ke2 Nc6 38.f4 e5 39.fe5 fe5 40.Rb2?? Rb2 41.Bb2–/+ Kb4 42.Kd3 Kc5 43.Ba3 Kb5 44.Bd6 Ka4 45.e4 d4 46.Be5 Ne5 47.Kd4 Ng6 48.e5 Kb4 49.Kd5=+ h5 50.e6 Kc3 51.Kd6 Kd4 52.e7 Ne7 53.Ke7 ½–½. Junger,Uli – Hartmann,T, OLWuert, 1988.

7.d4 Bg4 8.Be2 Ne4 (8...b6 9.0–0=) 9.0–0 c6 (9...a5 10.b5=) 10.a4 (10.Nbd2 Nd2 11.Qd2 Nd7=) 10...Nd7 11.Nbd2 Nd2 12.Qd2 Bf3 (12...Nf6 13.Qc2=) 13.Bf3+= f5 14.g3 (14.Be2 b6+=) 14...Nf6 15.Bg2 (15.Be2 Rb8=) 15...Ne4 (15...Rb8 16.f3=) 16.Qe2 Qe8 17.Rfe1 (17.f3 Nf6+=) 17...Qg6= 18.Ra3 (18.f3 Nf6=) 18...h5 (18...b6 19.f3 Ng5 20.Rb3=) 19.f3+= Nf6 20.e4 fe4 21.fe4 Rf7 22.ed5 ed5 23.Re3 Bd8 (23...Re8 24.Re6+/–) 24.Qd3 (24.Re6 h4+/–) 24...Qd3+= 25.Rd3 Ng4 (25...a5 26.b5+=) 26.Re8 Rf8 27.Rf8 Kf8 28.h3 (28.Bc1 Nf6+=) 28...Nf6 29.Rf3 g6 (29...Bc7 30.Bc1+=) 30.Bc1 Kg7 (30...a5 31.b5+=) 31.Bf4 Ne4 (31...Nd7 32.g4+=) 32.Re3 Bf6 33.Be4 Bd4 34.Bd3 Kf6 (34...a5 35.Be5 Be5 36.Re5=) 35.Kg2 g5 36.Bg5! Kg5 37.Re7 (37.Re6 Rg8 38.h4 Kg4+–) 37...a5? (37...Kf6 38.Rb7 a5 39.b5 cb5 40.Rb5+/–) 38.b5 (better is 38.Re6 Rg8 39.h4 Kg4 40.Re1+–) 38...Bc5?? (38...Kf6 39.Rb7 cb5 40.Rb5+/–) 39.Rb7 (39.Re6 Rg8 40.h4 Kg4 41.Re5 cb5 42.Bf5) 39...Rc8 (39...cb5 40.Rd7 (40.Bb5?! Rf8+=; 40.ab5?! Kf6=) 40...Kh6 41.ab5+/– (worse is 41.Bb5 d4+=)) 40.Rg7 (40.bc6 h4 41.Rd7 Rc6 42.Rd5 Kf6+–) 40...Kf6+/– 41.Rg6 Ke5 42.bc6 Rc7 (42...Be7 43.Rh6 h4 44.gh4+–) 43.Bb5 Bb6? (43...Rh7 44.h4+/–) 44.g4 (44.Rg5 Ke4 45.Rh5 d4+–) 44...h4? (44...hg4 45.Rg5 Kd6 46.hg4+/–) 45.Rg5 (better is 45.Rh6!? d4+–) 45...Ke4+/– 46.Rf5 Be3 (better is 46...d4!?+/–) 47.Be2+– d4 48.Bf3 Kd3 49.Ra5 Bf4 50.Ra8 (50.Rh5 Bg3+–) 50...Kc3 51.Rf8 Bg3 52.g5 d3 53.Rd8 (53.g6 Ra7 54.Rd8 Ra4+–) 53...Rg7 54.Rd5 (54.Be4 Rg5 55.Rd3 Kb4 56.Rd4 Kc3+–) 54...Bf4 (better is 54...Kc4+–) 55.Bg4 (55.Be4 d2 56.g6 Be5 57.Rd3 Kc2+/–) 55...Rc7? (better is 55...d2+/–) 56.Kf3+– Bg5 (56...Kc4 57.Be6 (57.Kf4?! Kd5 58.g6 d2+=) 57...Bg3 58.g6+–) 57.Rg5 Rc6 58.Rd5 Rc7 (58...Rc4 59.Ke3+–) 59.a5 (better is 59.Bd7!? d2+–) 59...d2 (59...Rf7 60.Ke3 Re7 61.Kf4+–) 60.Kf4 Kc2 (60...Rg7 61.Bf3+–) 61.Kg5 1–0. Jovanovic,Momir (2075) – Dichmann,Arno (2100), Munich–ch MK, 2006.

7.Be2 a5 8.a3 –/+.

7.Be2 h6 8.0–0 a5 9.a3 Na6 (9...ab4!? 10.ab4 Ra1 11.Ba1 Nc6+=) 10.Qb3= b6 11.Ba6 (better is 11.cb6!? cb6 12.Nd4=) 11...Ra6–/+ 12.b5 a4 13.Qc3 (13.Qd1 Ra8 14.cb6 cb6–/+) 13...Ra5 (13...Ra8!?–/+) 14.cb6 cb6 15.Nd4 Qd7 (15...Ne4 16.Qc1 Bd6 17.f4+=) 16.Rc1 (16.Qc6!?=) 16...Bc5 (16...Rb5 17.Nb5 Qb5 18.f3+=) 17.Qa5 (17.Nf5!? ef5 18.Qc2+=) 17...ba5–/+ 18.Rc5 Bd3 19.Nc3 Rb8 20.Rc1 Ne4 21.Ne4 de4 (21...Be4 22.f3 Bg6 23.Rc7+–) 22.Rc7 Qd5 23.Nc6 Qb5 24.Nb8 Qb2 25.Nd7 h5 26.R7c3+= Qd2 27.Nc5 h4 28.h3 g5 29.Nd7 Kg7–/+ 30.Ne5 Qb2 31.Kh1 Be2 32.Kg1–/+ Bd1 33.Nf7 Kf7 34.Rc7 Kf6 35.Rd1–/+ Qa3 36.Rcc1 Qb2 37.Rb1+= Qc2 38.Rdc1 Qd3 39.Rb2? Qd5 40.Ra1= Qf5 41.Ra4 g4 42.hg4 Qg4 43.f3 Qg3 44.Rf2 h3+= 45.fe4 Ke7 46.Raa2 hg2 47.Rae2 Qh4 48.Rg2 Qe4 49.Rgf2 a4 50.Kh2 a3 51.Kg1 Qg6 52.Kh2 Qh6 53.Kg1 e5 54.Rh2 Qg6 55.Rhg2 Qb1 56.Kh2 Qh7 57.Kg1 Qb1 58.Kh2 Qe4 59.Rg7 Kf6 60.Rgg2 Qh7 61.Kg1 Qb1 62.Kh2 Qh7 63.Kg1 ½–½. Izoitko,Alexey – Reshetov,Valery (2110), St Petersburg White Nights op, 2004.

6.c5 a5

7.a3 0–0 8.Nc3 +=.

7.a3 0–0 8.Nd4 Bg6 9.Nc2 ab4 10.ab4 Ra1 11.Ba1 Nc6 12.b5 Bc2 13.Qc2 Nb4 14.Qc1 c6 15.bc6 (15.Bd4 Ne4=+) 15...bc6–/+ 16.Be2 Qa5 17.Bf6 Bf6 18.0–0 e5 19.d3 Na6 (19...Rb8 20.Rd1=+) 20.Qa3 (20.f4 ef4 21.Rf4 Qc5 22.Qc5 Nc5 23.d4–+) 20...Qa3–/+ 21.Na3 Nc5 22.Rb1 Ra8 23.Rb6 Be7 24.Nb1 Ra1 25.g3 f5 26.Kg2 Kf7 27.Nc3 Ra3 28.Nd1 (28.Nb1 Rb3 29.Rb3 Nb3–+) 28...Ke8 (28...Nd3 29.Rc6 Nb4 30.Rc7–+) 29.Rc6 (29.d4 ed4 30.Rc6 Ra2=+) 29...Kd7 30.Rb6 Nd3 31.Nb2 Nc5 32.Rb4 Ra2 33.Kf1 (33.h3 g5–+) 33...Kc6 34.Bb5 Kd6 35.Na4 Ne4 36.Rb2 Ra1 (36...Rb2 37.Nb2 Nc3 38.Ba6–+) 37.Kg2 Bd8 38.Rc2 Rb1 39.Rc6 Ke7 40.Bd3 Rb3 41.Bc2 Ra3 42.g4 fg4 (42...g6!?–/+) 43.Be4=+ de4 44.Nc5 Kf7 45.Ne4 Be7 46.Ng3 g6 47.Ne4 Rd3 (47...h5 48.Nd2 Ra2 49.Nc4=+) 48.Ra6 Rb3 49.Rc6 Rb2 50.Ra6 (50.h3 gh3 51.Kh3 h5=+) ½–½. Lucchini,G – Winiger,A, PF1, 1998.

7.a3 ab4!? 8.ab4 Ra1 9.Ba1 Nc6 –/+.

7.a3 c6 8.Be2= 0–0 9.0–0 h6 (9...b6 10.d4+=) 10.d4 (10.d3 b6=) 10...Nbd7 (10...ab4 11.ab4 Ra1 12.Ba1=) 11.Nbd2 (11.b5 cb5 12.Bb5 Qc7=) 11...Bh7 (11...b6 12.Qb3=) 12.Bc3 (12.b5 cb5 13.Bb5 Qc7+=) 12...ab4= 13.ab4 Qc7 14.Ra4 b5 15.Ra5 Ne4 (15...Rfb8 16.Qa1 Ra5 17.Qa5 Qa5 18.ba5+=) 16.Ne4 Be4 17.Nd2 (17.Qb3 Ra5 18.ba5 Ra8=) 17...Ra5 18.ba5 Bg6 19.Nb3 Nb8 (19...Nf6 20.Qd2=) 20.Bd3 Bd3 21.Qd3 Na6 22.Qd2 (22.f3 e5=) 22...Ra8 23.Na1 (23.Ra1 b4 24.Bb2 e5=) 23...b4 (23...e5 24.Nb3=) 24.Bb4 Nb4 25.Qb4 Ra5 26.Nb3 Rb5 27.Qc3 Bd8 (27...e5 28.de5 Qb7 29.Nd4 Rc5 30.Qd3=) 28.Ra1 Qb7 29.Nd2 Bc7 30.g3 f6 31.h4 e5 32.Kg2 (32.h5 Qb8=) 32...e4 33.Qc1 (33.Kg1 f5=) 33...f5 (33...Ba5 34.Nb3 Bb4 35.h5+=) 34.Rb1 (34.Qc3 Bb8=) 34...Ba5 35.Rb5 (35.Qc2 Rb1 36.Nb1 Qb4+=) 35...Qb5 (worse is 35...cb5 36.Nb3 Bb4 37.Qb2=) 36.Nf1 (36.Qd1 Kh7+=) 36...Qe2–/+ 37.Nh2?? (better is 37.Qb1–/+) 37...Be1–+ 38.Qb1 Qf2 39.Kh1 Qg3 (better is 39...Kh7 40.Qd1 Qe3 41.g4–+) 40.Qa2 (40.Qb7 Kh7 41.Qf7–+) 40...Qh4 41.Qa8 (41.Kg1 Qg3 42.Kf1 Qe3–+) 41...Kh7 42.Qc8 Qf6 (42...Qg5 43.Qa6 Bf2 44.Qf1 Be3 45.Qg2–+) 43.Kg2 (43.Qb8 Qg5 44.Nf1 Bf2–+) 43...Qg6 44.Kf1 Bg3 45.Kg2 (45.Ke2 Bh2 46.Kd2 f4 47.ef4 Bf4 48.Kc3 Qg3 49.Kb2 Be3 50.Qf5 Qg6 51.Qg6 Kg6–+) 45...Bf4 0–1. Hal1958 – Unnics, playchess.de, 2002.

7.Qa4 c6 8.d4 Nbd7 9.b5 cb5 10.Bb5 0–0 11.Nbd2 b6 12.c6 Nb8 13.Ba3 Ba3 14.Qa3 Na6 15.Rc1 Nc7 16.Qb3 Nb5 17.Qb5 Qc7 18.0–0 Ne8 19.a4 f6 20.Qb3 h6 21.e4 de4 22.Ne4 Qf4 23.Ng3 Bg4 24.d5 Bf3 25.de6 Qb4 26.Qf3 Nc7 27.Rfe1 Rfe8 28.Nf5 Ne6 29.Qd5 Rad8 30.Qa2 Rd2 31.Re6! Ra2 32.Re8 Kf7 33.Re7 Kg6 34.c7 Qc5 35.Rg7 Kf5 36.Rc5 1–0. Ben_Zur,Ron – Lewis,Ed, California, 1998.

7.Nd4 =+.

6.cd5 ed5

7.a3 0–0 8.d4 (8.Be2 a5 9.b5 c5=) 8...Nbd7 9.Nc3 (9.Bd3 Bd3 10.Qd3 Re8=+) 9...Nb6 (9...Re8 10.Be2=+) 10.Be2 a5 11.b5 Bd6 12.0–0 Re8 13.Nh4 Be6 14.Qc2 Ne4 (14...Bg4 15.Bg4 Ng4 16.Nf3=+) 15.Nf3 Bf5 (15...Bg4 16.h3 Bh5 17.Rfc1=+) 16.Bd3 a4 (16...Qf6 17.Rfe1=) 17.Ne5 (17.Rfc1 Qf6=+) 17...Qh4=+ (< 17...Be5 18.de5 Qe7 19.Rfc1+=) 18.g3 Qh6 19.Ne4 (19.Nd5 Nd5 20.Be4 Ne3 21.fe3 Qe3 22.Qf2 Qf2 23.Rf2 Be4 24.Nf7 Ra5=+) 19...Be4 20.Be4 de4 21.Nc4 (21.f4 Ra5 22.Rab1 Rb5 23.Qe4 f6 24.Qb7 Rb3= (24...fe5? 25.Qc6 Qe6 26.Qb5 ef4 27.ef4+–)) 21...Nd5 (21...Qh5 22.Nb6 cb6 23.d5 Qd5 24.Rfd1=+) 22.Rfc1 (22.Rac1 Qg5=+) 22...Qh3 23.Qe2 (23.Rab1 Nf6 24.Rf1 Qh5=+) 23...Be7 (23...Re6 24.f4=+) 24.Rc2 Qf5 (24...Qd7 25.Ne5 Qf5 26.Rf1=+) 25.Rac1 Qd7 (25...f6 26.Nd2=+) 26.Ne5 Qe6 27.Nc4 (27.f3 Bg5 28.f4 Be7=+) 27...Qd7 (27...Rac8 28.Ne5=+) 28.Ne5= ½–½. Steinmann,Joachim – Preuss,Guenter, corr 3GMM–F, 2000.

7.a3 0–0 8.Be2 Nbd7 (8...c5 9.bc5 Bc5 10.Nc3=) 9.0–0 (9.Nc3 c5=) 9...h6 (9...a5 10.Nd4 Be6 11.Ne6 fe6 12.b5=) 10.d3 Re8 11.Nbd2 (11.Nc3 c5=) 11...Bd6 (11...c5 12.Nh4 Bh7 13.Qa4+=) 12.Qc2 (12.Nd4 Bg6=) 12...Bh7 (12...c5!?+=) 13.Nb3= Qe7 (13...c6 14.Bc3=) 14.Rfc1 Ng4 15.Bd4 c6 (15...b6 16.h3 Nge5 17.Ne5 Ne5 18.Re1=) 16.Nc5 (16.Na5 Reb8+=) 16...Nde5= 17.Ne5 Ne5 18.Qc3 (18.Qb3 b6 19.Na4 Rac8=) 18...b6 19.Nb3 Rac8 20.Be5 Be5 21.d4 Bd6 22.Bd3 Bd3 23.Qd3 Qh4 (23...Qd7 24.Rc3=) 24.g3 Qg4 25.b5 cb5 26.Qb5 Rcd8 (26...Qe6 27.a4=) 27.Rc6+= (27.Qd5? Ba3 28.Qb7 Bc1 29.Rc1 Rc8–+) 27...Bb8 (27...Qe6 28.Rac1+=) 28.Ra2 (28.a4!?+=) 28...h5= 29.Qe2 Qf5 30.Rac2 g6 (30...Bd6 31.Nd2=) 31.Nd2 (31.a4 h4=) 31...Kg7 32.Qf3 Qg5 33.h4 Qe7 34.R2c3 Rd6 35.a4 Qd7 36.Rd6 Qd6 37.Qd1 Qd7 38.Qb3 Rd8 39.Kg2 Qg4 40.Nf3 Qe4 41.Qc2 Qc2 42.Rc2 Kf6 43.a5 ba5 44.Rc5 a4 45.Ra5 Ke7 46.Ra4 f6 47.Ne1 Rd7 48.Nd3 Bd6 49.Ra5 Ke6 50.Ra6 Ke7 51.Kf3 Rc7 52.Ra5 Ke6 53.Ra6 Ke7 54.Nf4 Bf4 55.Kf4 Rd7 56.f3 Kf7 57.Ra5 Ke6 58.g4+/– hg4 59.fg4 Kf7 60.h5 Kg7 61.Ra6 Rf7 62.hg6+/– Kg6 63.Rd6 Rb7 64.Rd5 Rb1 65.Ra5+– Rf1 66.Kg3 Rg1 67.Kf3 1–0. Morovic Fernandez,Ivan (2560) – Macias Murillo,Bryan (2295), 8th La Habana Cuba, Capablanca Open A, 2013.

7.b5 0–0 8.Nc3 c5 9.bc6 Nc6 10.Nh4 Be6 11.Bd3 Ne5 12.Bf5?? (better is 12.Be2–/+) 12...Bf5–+ 13.Nf5 Nd3 14.Ke2 Nb2 15.Ne7 Qe7 16.Qb3 Nc4 17.Nd5 Nd5 18.Qc4 Nf6 19.d4 0–1. Fabus,Marian (1815) – Dlabik,Jozef (2130), SVK–chT2C, 2007.

7.Nc3 Bb4 8.Nd4 Bc3 9.Bc3 Bd7 =.

7.Nd4 Bg4 8.Be2 Be2 9.Qe2 Qd7 10.g4 (10.Qf3 Bb4 11.Nf5 Rg8=) 10...Qg4 (10...Ng4!? 11.Rg1 h5+=) 11.Qg4= Ng4 12.Nf5 Bf6 (worse is 12...Bb4 13.Bg7 Rg8 14.h3+/–) 13.Bf6 Nf6 14.Ng7 Kf8 15.Nf5 Nc6 16.Nc3 (16.a3 Rg8=) 16...Ne7 (16...Nb4!? 17.Rb1 c5+=) 17.Nd4= c6 18.Ke2 a5 19.ba5 Ra5 20.Rhb1 Ra7 21.a4 Ne8 22.d3 Nd6 23.e4 de4 24.Ne4 Nef5 25.Nd6 Nd6 26.a5 Ke7 27.a6 Kd8? (better is 27...c5 28.ab7 Rb7 29.Rb7 Nb7=) 28.ab7+/– Re8 29.Kd2 Rb7 30.Rb7 Nb7 31.Ra7 (better is 31.Nc6!? Kc7 32.Rc1+/–) 31...Kc7= 32.Ra6 Nd8 33.Ra5 f6 34.Rf5 Rf8 35.Kc3 Kd6 36.Rh5 Rf7 37.Kc4 Ne6 38.Ne6 Ke6 39.Kc5 Kd7 40.Rh6 Kc7 41.d4 Kd7 42.f4 Kc7 43.f5 Kd7 44.Rh3 Re7 (better is 44...Kc7!?+/–) 45.Ra3+– Re4 46.Ra7 Ke8 47.Rh7 Rf4 48.h3 Kf8 49.Rh8 Kg7 50.Rd8 White intends d5 (50.Rh5!? Re4+–) 50...Rf5+/– 51.Kc6 Rh5 52.d5 Rh3 53.d6 f5? (better is 53...Rc3 54.Kd7 Kf7+/–) 54.Rc8 Kf6 (54...Rc3 55.Kb7 Rd3+–) 55.d7 Rc3 56.Kb5 Rd3 57.d8Q Rd8 58.Rd8 Ke5 59.Kc4 Ke4 60.Re8 Kf3 61.Rf8 Ke4 62.Kc3 1–0. Bulcourf,Carlos (2055) – Trois,F (2250), Villa Martelli ARG, 2013. (=1.Nf3 d5 2.b4 Bf5 3.Bb2 e6 4.e3 Nf6 5.c4 Be7 6.cd5 ed5)

7.Be2 0–0 8.a3 c6 9.Bf6 (9.0–0 a5=) 9...Bf6 (< 9...gf6 10.0–0+=) 10.d4 b5 11.Nbd2 (11.0–0 a5 12.ba5 Re8=) 11...a5=+ 12.0–0 ab4 13.ab4 Na6 14.Nb3 Nb4 15.Qd2 Be7 16.Ra8 Qa8 17.Ra1 Qb7 18.Nc5 Bc5 19.dc5 Na6 20.Nd4 Bd7 21.Qc2 Ra8 22.Bd3 g6 23.Rb1 Nc7 24.h4 Ne6 25.Nf3 (25.h5 Nd4 26.ed4 Qc7 27.hg6 hg6–/+ (27...fg6?! 28.Bg6 Bg4 29.Bf5=)) 25...Qa7 26.Ne5 Be8 (26...Nc5?! 27.Nd7 Nd7 28.Qc6=) 27.Ng4 Qc5 (< 27...Nc5 28.Nf6 Kh8 29.Rc1 Nd3 30.Qd3=+) 28.Qb2 d4 29.Rc1 Qd6 30.Nf6 Kg7 31.Ne4 Qa3 32.Qd2 Rd8 33.Rd1 h5 (33...c5 34.Ng5–+) 34.Ng5 Ng5 35.hg5 Qe7 (35...de3 36.Qe3 c5 37.Qe5 Kg8 38.Qe7 Rd3 39.Qe8 Kg7 40.Qe5 Kh7 41.Rd3 Qd3 42.Qc5 Qb1 43.Kh2–+) 36.e4? (36.ed4 Rd4 37.Re1 Qd8–+) 36...Qd6 37.f4 c5 38.e5 Qe6 39.Qa5 Rc8 40.Bb5 Qb3 41.Be2 Qe3 42.Kf1 Qf4 43.Bf3 Qe5 44.Qd2 Bc6 45.Re1 Qf5 46.Kg1 Bf3 47.Rf1 Qe5 48.Rf3 c4 49.Qa2 Rc7 50.Qa1 c3 51.Rd3 Qg5 52.Qa4 c2 (53.Qd4 f6–+) 0–1. Bulcourf,Carlos – Giardelli,Sergio, Buenos Aires, 1992.

7.Be2 0–0 8.a3 Nbd7 9.Nd4 Bg6 10.h4 ½–½. Krstev,Emil (2130) – Organdziev,Oliver (2290), 22nd Open Macedonian Championship, 2013.

7.Bf6 Bf6 8.d4 0–0 (8...Qe7 9.a3=) 9.Bd3 Bd3 (9...Qd7 10.0–0=) 10.Qd3 Na6 11.Qb5 (11.b5 Nc5 12.Qc2 Ne6=) 11...Qd6 12.a3 (12.Qb7?? Rfb8 (12...Nb4?! 13.a3 Nc2 14.Kd2–+) 13.Qb8 Rb8–+) 12...c6 13.Qd3 (13.Qb7 Nc7–+) 13...Nc7 14.Nc3 a5 (14...b5 15.0–0=) 15.b5 c5 16.0–0 c4 (16...Rac8 17.Rfc1=) 17.Qc2 Rfe8 18.e4 Be7 19.Rfb1 (19.Rfe1 Rac8=) 19...b6 20.a4 Qd8 21.Re1 Bb4 22.ed5 Re1 23.Re1 Rc8 24.Ne5 Nd5 25.Nc6 Rc6 26.bc6 Bc3 27.c7! Qf8 (27...Qc7 28.Re8) 28.Re5 Nc7 29.Qc3 Qd6 (29...Qb4 30.Qb4 ab4 31.Re7+–) 30.Qc4 g6 31.f4 Kg7 32.f5 f6 33.fg6 hg6 34.Re4 Kf8 35.h3 (35.Re2 Kg7+–) 35...Kg7 36.d5 (36.Rh4 g5 37.Re4 Nd5+–). Hoch – Petersohn, BdF, 2002.

6.Be2 0–0+=

7.a3 dc4 8.Bc4 a5 9.b5 =.

7.a3 Nc6 8.0–0 +=.

7.a3 Nbd7 8.0–0 Rc8 (8...dc4!? 9.Bc4 Nb6+=) 9.c5= c6 10.Nh4 Bg6 (10...Qc7 11.Nf5 ef5 12.d4+=) 11.Ng6+= hg6 12.f4 (12.Nc3 Qc7+=) 12...Ne8 (12...b6!? 13.d4 Rb8+=) 13.Nc3+/– Bf6 (13...b6 14.d4+/–) 14.d4 Nc7 15.Bd3 (15.Rf3 Rb8+/–) 15...Be7 16.Bc1 (16.Rf3 Nf6+/–) 16...f5 17.g4 (17.Bd2!?+/–) 17...Nf6+= 18.g5 Ne4 19.Ne4 (19.Bd2 Qd7+=) 19...de4 20.Bc4 Nd5 21.Bd2 Kf7 22.Kg2 Rh8 23.Kg3?? (better is 23.Qe1=) 23...Bg5–+ 24.Kg2?? (24.Bd5 Bh4 25.Kg2 ed5–+) 24...Bf6 (better is 24...Bf4 25.ef4 Qh4 26.Rh1 Qh3 27.Kg1–+) 25.Rh1 Qe7 26.Qe2 Rh6 27.Rag1 Rch8 28.Kf1 Rh3 29.Rg2 Bh4 30.a4 Qf6 31.b5 Rf3 32.Kg1 Nf4! 33.h3 Ne2 34.Be2 Rg3 35.Rhh2 f4! 36.Bg4 0–1. Tagirov,Kajum K (1895) – Seyfutdinov,Rustam (1735), Uljanovsk Povolje op, 2010.

7.a3 Nbd7 8.d4 Ne4 9.Nc3 c6 10.0–0 Bf6 11.Qb3 h5 (11...dc4 12.Bc4 Nc3 13.Bc3=) 12.b5 g5 (12...dc4 13.Bc4 Nb6 14.Be2+=) 13.Rfd1 g4 14.Nd2 Ng5 15.a4 Bg7 16.a5 Qf6 17.a6 Rab8 (17...Rfb8 18.Qb4+/–) 18.cd5 cd5 (18...ed5!? 19.Rdc1 Nb6+/–) 19.Ba3+– b6 (19...Rfc8 20.Bd6+–) 20.Bf8 Bf8 21.Rac1 Bd6 22.Nd5 (22.Ncb1!? Rd8+–) 22...ed5 23.Qd5 Rd8 24.e4 Bg6 25.e5 Ne5 26.de5 Be5? (better is 26...Qe5 27.Qe5 Be5+–) 27.Ne4!! Qf4 (27...Ne4 28.f3 Double attack (28.f3 Decoy); 27...Be4 28.Qd8 Combination) 28.Qd8 Kg7 29.Ng3 h4 (29...Ne4 30.Rf1+–) 30.Rc4 (better is 30.Rc8 Kh7 31.Rc4 Bf6 32.Rf4 Bd8 33.Rd8 hg3+–) 30...Ne4 (30...Qf6 31.Nh1 Bh2 32.Kh2 Qe5 33.Kg1 Qe2+–) 31.Re4! (31.Re4 Qf6 32.Re5 Qe5 33.Qh4+–) 1–0. Melich,Jindrich – Groh,J, 2.CNL, 1998.

7.a3 Nbd7 8.cd5 Nd5 9.Nc3 =.

6.Bf6 Bf6

7.d4 0–0 8.Nc3 c6 9.Rc1 Nd7 10.Be2 (10.cd5 cd5 11.Bd3 Bd3 12.Qd3 Be7=) 10...Rc8 11.0–0 Qe7 (Black gets strong initiative) 12.cd5 cd5 13.Nd5?? (better is 13.Qa4=) 13...ed5–+ 14.Qa4 a6 15.b5 Nb6 16.Qa5 Nc4 17.Bc4 dc4 18.ba6 Bd3 19.Rfd1 ba6 20.Ne1 Qb7 (better is 20...Be4!?–+) 21.Nd3–/+ cd3 22.Rb1 Qc6 23.Rd3 Qe4 24.Rdb3 Rc2 (24...Rc6 25.a4–/+) 25.Rb8 Be7 (25...Qc6!? 26.Rf8 Kf8–/+) 26.Qa6 Qf5 27.Rf8 Bf8 28.Rf1 Qd5 29.Ra1 g6 30.a4 Bd6 31.Qb5 Ra2 (better is 31...Qb5 32.ab5 Rb2=+) 32.Ra2+/– (32.Qd5?? Ra1) 32...Qa2 33.g3 Bc7 34.Kg2 Kg7 35.Kf3 Qa1 36.Qc4 Qh1 37.Ke2 Qb7 38.d5 f6 39.f4 Bd6 40.Qc6 Qb4 41.a5 (41.Qb5 Qe4 42.Kf2 Qc2 43.Kf3=) 41...Bc5= 42.g4 Qa5 43.e4?? (43.Qd7 Kh6 44.g5 fg5 45.Qh3 Kg7 46.Qd7 Kf8 47.Qc8 Ke7 48.Qe6 Kd8 49.Qg8 Kd7 50.Qe6 Kc7 51.Qf7 Kb6 52.Qe6 Kb5 53.Qe8 Kc4 54.Qe4 Kb3 55.Qd3 Qc3 56.fg5 Qd3 57.Kd3=+) 43...Qa2–+ 44.Kd1 Qb1 45.Kd2 Qb2 46.Kd1 Qd4 47.Kc2 Qe4 48.Kb3 Qb4 49.Kc2 Qc4 50.Kb2 Bd4 51.Ka3 Qc6 (51...Qd3 52.Kb4 Qd2 53.Kb5 Qf4 54.h3–+) 52.dc6 Bb6 53.Kb3 Bc7 54.Kc4 Bf4 55.h3 Kf7 56.Kc5 Ke7 57.Kd5 (57.Kb6 f5 58.g5 Be5–+ (58...Bg5?? 59.c7+–)) 57...Bc7 58.Kc5 Ke6 59.Kd4 Kd6 (60.h4 f5 61.gf5 gf5–+) 0–1. aspasio – TadasG, ICC, 1999.

7.d4 Be7 =.

5.c4 h6

6.a3 a5 7.c5 =.

6.a3 Be7 7.cd5 ed5 8.Be2 0–0 9.0–0 Nbd7 10.d3 c6 11.Nc3 Re8 12.b5 c5 13.Qb3 Be6 14.Qc2 Bd6 15.d4 (15.Rfc1 Qc7=) 15...c4 16.Nd2 (16.a4 Qe7=) 16...Qc7 17.h3 Rac8 18.Rfe1 Nf8 (18...Qb6 19.Bf3=) 19.Bf3 Ng6 (19...Qd7 20.e4 Bf4 21.ed5=) 20.e4 de4 21.Nde4 (worse is 21.Be4 Nf4+=) 21...Be7 (21...Ne4 22.Be4 Qb6 23.a4+=) 22.Nf6 Bf6 23.Ne4 Be7 24.d5 Bf5 (24...Bd5 25.Qc3 f6 26.Nf6 Bf6 A) worse is 27.Bd5 Kh7 28.Re8 Bc3 (28...Re8?! 29.Qc2=) 29.Rc8 Qc8 30.Bc3 Nf4 31.Be4 Kg8–/+; B) 27.Re8 Re8 28.Bd5 Kh8 29.Qc2=) 25.Qc3 Bf8 26.Ng3 Bd3 27.Rac1 (27.d6 Qd7 28.a4 a6=) 27...Qd6 ½–½. Lebel,Patrick (2255) – Vasquez,Goncalo, Challes op, 1990.

6.Qa4 c6 7.c5 Nbd7 8.d4 a6 (8...Qc7 9.Be2=) 9.Be2 Be7 10.0–0 0–0 11.Nbd2 Ne4 12.Ne4 Be4 13.Nd2 Bh7 14.Rfd1 Bf6 15.Qb3 e5 16.de5 Be5 17.Be5 Ne5 18.Nf3 (18.f4 Nd7=) 18...Nf3= 19.Bf3 Qe7 20.Qc3 Rfe8 21.a3 Rad8 22.Rd4 Bf5 23.Rad1 Qg5 (23...Qf6 24.Qd2 Qg6 25.Qe2=) 24.Qd2 (24.a4 Qg6=) 24...Rb8 (24...Qg6 25.Qe2=) 25.Qe2 (25.h4 Qf6=) 25...Re7 26.a4 Rbe8 27.Bg4 Bg4 (27...Be4 28.b5=) 28.Qg4 (28.Rg4 Qf5=) 28...Qg4= 29.Rg4 Re4 30.Re4 Re4 31.Rd4 Re5 32.Kf1 (32.h4 g5=) 32...f5 33.Ke2 Kf7 34.Kd3 Kf6 35.f3 g5 36.h3 h5 37.h4 g4 38.Rf4 Re7 39.e4 de4 (39...Re5 40.a5=) 40.fe4+= Re5 41.a5 Ke6 42.ef5 Rf5 43.Rf5 (43.Re4 Kf6=) 43...Kf5 44.Ke3 Ke5 45.g3 Kf5 46.Kd4 Kf6 47.Ke4 Ke6 48.Kf4 Kf6 49.Ke4 Ke6 50.Kf4 Kf6 51.Ke4 ½–½. woschkat (1990) – unnics (1755), net–chess.com, 2001.

6.Qb3 c6 7.Nc3 Bd6 8.d4 Nbd7 9.Be2 0–0 10.0–0 Re8 11.a4 Ne4 12.Rad1 Qf6 13.b5 Rac8 14.bc6 bc6 (worse is 14...Rc6 15.Qb7 Rc7 16.Qa6+/–) 15.Qa2 g5 (15...Nc3!? 16.Bc3 Rb8=) 16.Ne4 Be4 17.Qa1 g4 18.Ne5 Be5 19.de5 Qg6 20.Kh1 Rb8 21.f3 (21.Ba3!?+=) 21...Bc2= 22.Rd4 h5 (22...Ne5 A) worse is 23.fg4 Bd3 (worse is 23...Nc4 24.Bc4 dc4 25.Rd7+=) 24.Rdf4 Be2 25.Be5 Bf1 26.Bb8 Bg2 27.Kg2 Rb8–/+; B) 23.Rf4 Nd3 24.Rg4 Qg4 25.fg4 Nb2 26.a5+/–) 23.fg4 h4 24.Rdf4 Rb3 (24...Be4 25.h3+/– (25.Rf7?! h3 26.Kg1 hg2+=)) 25.cd5 ed5 26.Rf7 Qf7 27.Rf7 Kf7 28.g5 (28.Qc1 Be4 29.g5+= (29.Qc6? Rb2 30.Qd7 Re7 31.e6 Kf6 32.g5 Kg6–+)) 28...Reb8 (28...Re3? 29.Bh5 Ke7 30.Qc1+–) 29.Qf1 Kg8 30.e6 Rb2 (30...Ne5 31.Be5 Rf8+–) 31.Qf7+/– (31.ed7?? Rb1–+) 31...Kh8 32.ed7 (32.ed7 Rb1 33.Bf1+–) 1–0. Jaeger,Frode Bull (2115) – Takle,Dan (1725), NOR–chT lag Tromsoe, 2008. (=1.Nf3 h6 2.b4 d5 3.Bb2 Bf5 4.e3 e6 5.c4 Nf6)

6.Qb3 Nbd7 7.h3 (7.Nd4 Bg6+=) 7...c6 8.Be2 Be7 (8...dc4 9.Qc4 Be4 10.a3+=) 9.d3 Qc7 (9...a5 10.a3+=) 10.Nbd2 Rc8 (10...0–0 11.0–0=) 11.g4 (11.cd5 ed5 12.0–0 0–0=) 11...Bh7 12.h4 Ng4 13.cd5 ed5 14.Bg7 (14.Rg1 Ndf6–/+) 14...Rg8 15.Bb2? (better is 15.Bd4 Nf2! 16.Rf1–/+) 15...Nf2!–+ 16.Rf1 (16.Kf2 Qg3 Combination) 16...Ng4 (16...Rg2 17.Bd4 Qg3 18.e4 Nd3 19.Kd1–+) 17.Rg1 (17.Bd4 Bf6 18.Rg1 Ne3 19.Rg8 Bg8 20.Be3 Ba1 21.Bh6 Qb6–+) 17...Ne3 18.Rg8 Bg8 19.Nf1 Ng2 (19...Bb4 20.Kf2 Ng4 21.Kg2–+) 20.Kd1 Bh4 (20...Nh4 21.Nh4 Bh4 22.Nd2–+) 21.Nh4 Nh4 22.Qc3 (22.b5 Qb6–+) 22...Qf4 (22...Nf5 23.Qh8 Ke7 24.Qc3–+) 23.Kc2 (23.Bc1 Qe5 24.Qe5 Ne5 25.Bh6 Bh7–+) 23...Ng2 (23...c5 24.Qg7 Ke7 25.bc5 Nc5 26.Kd1–+) 24.Nd2?! (24.Qg7 Qg5 25.Qh8–+) 24...c5 Black prepares the advance d4 25.Rg1 (25.Nf1 d4 (25...Qb4 26.Qg7 Qa4 27.Kb1–/+) 26.Qd2 cb4 27.Kd1 Qd2 28.Kd2 Rc3–+) 25...d4 26.Qc4 (26.Qb3 Qf2 27.Rg2 Qg2 28.Kd1–+) 26...Ne3 (26...Ne3 27.Kb1 Nc4 28.Rg8 Ke7 29.Rc8 Qd2 30.dc4 Qe2–+) 0–1. Otazu Ojer,Inigo (2030) – Martinez Otzeta,Jose Maria (1915), Absoluto Preferente, 1999.

6.Qb3 Be4 7.Nc3 Bf3 8.gf3 dc4 9.Bc4 Nc6 10.Bb5 Qd6 11.a3 a6 =.

6.b5 Bd6 7.d4 dc4 8.Bc4 0–0 9.0–0 c5 (9...a6 10.Nc3=) 10.Qb3 (10.dc5 Bc5 11.Nd4 Bd4 12.Bd4 Nbd7=) 10...Qe7 11.Nc3 Nbd7 12.a4 Nb6 13.dc5 Bc5 14.Be2 Rfd8 15.a5 Nbd5 16.Na4 (16.Rfd1 Nb4=) 16...Bb4 17.a6 (17.Nc3 Bc3 18.Bc3 Nc3 19.Qc3 Rac8=) 17...ba6=+ 18.ba6 Ne4 19.Rad1 Rab8 20.Qa2 Nec3 21.Nc3 Nc3 22.Bc3 Bc3 23.Rd8 Rd8 24.Qc4 Bf6 (24...Bb2 25.e4 Bg6 26.Rb1=) 25.e4 Bg6 26.e5 Bg5 27.Ng5 hg5 (27...Qg5 28.f4 Qe7 29.Rc1=) 28.Rd1 (28.Qg4!?+=) 28...Rd1= 29.Bd1 Qd8 (29...Qa3!?=) 30.Be2+= Qa5 31.Qd4 Qe1 32.Bf1 Kh7 33.h4 (33.Qa7? Bd3 34.h3 Bf1 35.Qf7 Ba6 36.Kh2 Qe5 37.Kh1 Kh6–+) 33...gh4 34.Qh4 (34.Qa7 Bd3 (< 34...Qe5 35.Qb7+/–) 35.Qd4 Qf1 36.Kh2 Qe2 37.Qh4 Kg6 38.Qg3 Kf5=) 34...Kg8 35.Qd4 Kh7 36.f4 (36.f3 Kg8+/–) 36...Qc1 37.Kf2 Qc7 38.g4 Qc2 39.Ke3 (39.Be2!?+=) 39...Qc1= 40.Kf2 Qc2 41.Be2 Be4 42.Ke3 ½–½. Zylla,Johannes – Jacobsen,Fredrik, corr Partridge mem–6, 1995.

6.b5 Nbd7 7.Be2 Be7 8.0–0 0–0 9.d4 (9.Nd4 Bg6=) 9...c5 10.Nbd2 Bh7 11.Nb3 a5 (11...dc4 12.Nc5 Nc5 13.dc5=) 12.a4 (12.Nc5 Nc5 13.dc5 Bc5+=) 12...dc4= 13.Bc4 (13.Nc5 Nc5 14.dc5 Bc5=) 13...cd4 (13...Nb6 14.Be2 c4 15.Nc5=) 14.Bd4 Bb4 15.Bd3 Be4 (15...Bd3 16.Qd3 Qe7 17.Rac1=) 16.Bf6 (16.Qe2 Rc8+=) 16...Nf6= 17.Be4 Ne4 18.Qd8 Rfd8 19.Nfd4 Kf8 20.Rfc1 Rac8 21.g3 (21.Rc8 Rc8 22.Rd1 Nc3=+) 21...Ke7 22.Kg2 Bc3 (22...Rc1 23.Rc1 Nc3 24.Ra1=+) 23.Ra2 Bd4 24.Rc8 Rc8 25.ed4 Rc4 (25...b6 26.Re2 Nc3 27.Rc2–/+) 26.Kf3 (26.Na5!? Rd4 27.Nb7+=) 26...Ng5 (better is 26...Nd6 27.Ke2 Rb4 28.Na5 Rd4=) 27.Ke3?? (better is 27.Ke2 b6 28.Kd3=) 27...Rb4 (better is 27...Rc3 28.Ke2 Rb3–+) 28.Nc5?? (better is 28.Na5 e5 29.de5+–) 28...b6= 29.Nd3 Rc4 30.h4 Nh7 31.Ne5 Rc3 32.Kd2 Rc8 33.Nc6 (33.Rc2 Rc2 34.Kc2 Nf6=) 33...Kf6 (33...Kd6!?=) 34.Ra3. Grehl,Siegfried – Roever, corr SOK–91–74, 1991.

6.c5 a5 =.

6.c5 a6 7.Nd4= Bg6 8.f4 (8.Nc3 Qd7=) 8...Ne4 9.Nf3 (9.Qf3 Nc6 10.Nc6 bc6–/+) 9...Bh5 (9...Nc6 10.a3+=) 10.d3 Nf6 11.Be2 Nc6 (11...a5 12.a3=) 12.a3= Be7 (12...a5 13.b5 Ne7 14.Ne5 Be2 15.Qe2=) 13.0–0 0–0 (13...Ng4 14.Qd2 0–0 15.h3=) 14.h3 (14.Ne5 Be2 15.Qe2 Ne5 16.fe5 Nd7+=) 14...Bg6 15.Nbd2 Nd7 16.Ne5 (better is 16.Nb3!?=) 16...Nde5–/+ 17.fe5 (17.Be5 Ne5 18.fe5 Bg5–+) 17...Bg5–+ Black plans d4 18.Rf3 Ne7 (18...d4!? 19.Nc4 de3–/+) 19.Nf1 (19.Nb3 Qd7+=) 19...Nf5 20.Qc2 (20.Qb3 d4 21.Rf5 ef5 22.ed4 a5–/+) 20...d4 (20...Qd7!?–/+) 21.e4+= Ne3 22.Ne3 Be3 23.Kh1 (23.Kh2 a5+=) 23...Qg5 24.Raf1 (24.g3 Bh5 (24...Qe5? 25.Re3 f5 26.Rf1+–) 25.g4 Bg6–/+) 24...Bh5 (24...Qe5? 25.Re3 a5 26.Qc4+–) 25.g4 Bg6 26.Bd1 h5 (26...Qe5? 27.Re3 Rfd8 28.Ref3+–) 27.Qg2 h4 (27...Qe5?? 28.Re3 Rad8 29.Rg3+–) 28.Bb3 c6 (28...Qe5?? 29.Re3 Qg5 30.Ref3+– (30.Bd4?! Rfd8=)) 29.Qh2 (29.Qc2 A) 29...Qe5?? 30.Re3 Qg5 31.Re2+– (31.Bd4?! Rfd8=); B) 29...Rfd8+=) 29...a5–/+ 30.ba5 (30.Re1–/+) 30...Ra5 (better is 30...Qe7!?–/+) 31.Be6+= Rc5 32.Bf5? (32.Bb3 Qe5 33.Qe5 Re5 34.Re3 Rb5 35.Bd4 Rb3–/+) 32...Ra5 (better is 32...Bf5!? 33.Rf5 Qe7–/+) 33.e6+= Raa8?? (better is 33...Bf5 34.ef7 Rf7 35.Rf5 Raf5 36.gf5 b5=) 34.Qe5 (better is 34.Bg6 fg6 35.Rf7+–) 34...Qe7?? (better is 34...Kh8+/–) 35.ef7 (35.Bg6 fg6 36.Rf7 Rf7 37.Rf7 Qf7 38.ef7 Kf7 39.Bd4 Bd4 40.Qd4 g5+–) 35...Rf7 36.Qe7 (36.Qe7 Re7 37.Bg6+–) 1–0. Tagirov,Kajum K (1900) – Svalyk,Gennadiy, Championship Ufa, 2012.

6.c5 Nbd7 7.a4 (7.Nd4 Bb1 8.Rb1 e5+=) 7...a6 (7...a5 8.Nd4=+) 8.d4 Qe7 9.Nc3 Ne4 10.Ne4 Be4 11.Bd3 f5 12.Qe2 g5 13.Be4 fe4 14.Nd2 Bg7 15.Qh5 Kd8 16.0–0 Nf6 17.Qe2 h5 18.Nb3 c6 19.b5 ab5 (better is 19...h4!?=) 20.ab5+/– Ra1 21.Ra1 (< 21.Na1 Qc7+=) 21...Qd7? (21...Qc7 22.Ra8 Ke7 23.b6+–) 22.b6 (22.Ra7 cb5 23.Na5 Ne8+–) 22...Ke7? (22...Rf8!?+/–) 23.Ra7+– g4? (better is 23...Rb8+–) 24.Na5 Rb8 25.Qd1 Qc8 26.Qa4 Kf8 27.Kf1 Nd7? 28.Ke2?? e5? 29.de5 Ne5? 30.Nb3 Qe8 31.Nd4 Nc4 32.Qa1 Nb2 33.Qb2 h4 34.Qd2 Qh5 35.Ne6 Kf7 36.Ng7 Kg7 37.Ke1 Qe5 38.g3 h3 39.Qd1 Qf5 40.Qd4 Kg8 41.Qa1 Qf3 42.Qe5= Rf8 43.Qe6 Rf7?? 44.Qg6+– Kf8?? 45.Ra8 Ke7 1–0. hal1958 – adamant, playchess.de, 2002.

6.a3 Nbd7

7.Nc3 a5 8.b5 =.

7.Nc3 c5 8.bc5 (8.Qb3 dc4 9.Bc4 Be7=) 8...Nc5 (better is 8...Bc5!? 9.cd5 ed5=) 9.d4 Qb6 10.Nb5 (10.Ra2 Ncd7+=) 10...Ncd7 (10...dc4 11.Bc4 Ncd7 12.d5 ed5 13.Be2–/+) 11.c5+= Qc6 (11...Qd8 12.Bd3 Bd3 13.Qd3+=) 12.Rc1 (better is 12.Ne5!? Ne5 13.de5+/–) 12...a6= 13.Nc3 g5 (13...Be7 14.Bd3=) 14.Bd3 (14.h3 Bg7+=) 14...Ne4 (14...Bd3 15.Qd3 g4 16.Nd2+=) 15.0–0 (15.Be4 de4 16.d5 Qc5 17.de6 fe6+–) 15...Be7 (15...g4 16.Nd2 Nf2 17.Rf2 Bd3 18.Nb3+/–) 16.Qc2 (16.Be4!? Be4 17.Ne4 de4 18.d5 Qd5 19.Qd5 ed5 20.Bh8 ef3 21.Bd4 (worse is 21.gf3 f6+=) 21...fg2 22.Kg2+/–) 16...Rg8 17.Nd2 Ndf6 (17...Nd2 18.Qd2 Bd3 19.Qd3+=) 18.f3 (18.Nce4!? Ne4 19.Ne4 Be4 20.Bc3+/–) 18...Nd2= 19.Qd2 Bd3 20.Qd3 g4 21.Kh1 (21.fg4 Rg4 22.Rc2 Rg6=) 21...h5 (21...b6 22.cb6 Qb6 23.Ba1 gf3 24.Rf3=) 22.Rce1 (22.a4 Kd7=) 22...gf3 (22...b6 23.cb6 gf3 24.Rf3 Qb6 25.Ba1=) 23.gf3 (23.Rf3 Rg6=) 23...Rg7 (23...b6 24.cb6 Qb6 25.Rb1=) 24.Rg1 (24.e4 de4 25.fe4 Rg8+=) 24...Rg1 25.Rg1 Kd7 26.e4 Kc7 27.Bc1 Rd8 28.Bf4 Kc8 29.Qe3?? Bc5?? 30.dc5?? d4= 31.Qe2 dc3 32.Bg5 e5 33.Qc4 Rd7 34.Qc3 Ne4+= Attacking the isolated pawn on c5 35.Qe5 Ng5 36.Qg5 Qf3–/+ 37.Qg2 Qa3 38.c6 Rd8 39.cb7 Kb8 40.Qe4 Qd3 41.Qf4 Kb7–+ 42.Qf7?? Rd7 43.Qh5 Qe4 44.Rg2 Rg7 45.Qe2 Qb1 46.Qf1 Qf1 47.Rg1 Qg1 (47...Rg1) 0–1. Isotov,Sergey – Vasilyev,Anatoliy, Staraya Russa RUS, 2012.

7.Nc3 c6 8.c5 Be7 9.d4 Ne4 10.Bd3 Ndf6 11.Qc2 0–0 12.0–0 Bh7 (12...Nc3 13.Qc3 Bd3 14.Qd3=) 13.Ne5+= Ng5 14.Bh7 Ngh7 15.f4 Nd7 16.Rf3 Nhf6 17.Raf1 (17.a4 Qc7+=) 17...Qc7= 18.Rh3 Rfe8 19.Rff3 Nf8 (19...Red8 20.Rfg3 Nf8 21.Rh6+/–) 20.Rfg3 Ng6?? (better is 20...h5+=) 21.Ng6+– fg6 22.Qg6 Bf8 (22...Bd8 23.Qh6 Kf8 24.Qh8 Ng8+–) 23.Qf6 (23...a5 24.Qh6 ab4 25.ab4+–) 1–0. Gross,Wilhelm – Merten,Rainer, 1989.

7.c5 a5 8.Nc3 A) 8...ab4 9.ab4 Ra1 10.Qa1 e5 11.Qa7 Qc8 12.Bb5 c6 13.Be2 Bg4 14.d3=; B) 8...Be7 9.Nd4 Bg4 10.f3 e5 11.fg4 ed4 12.ed4 0–0 13.Be2 ab4 14.ab4+=; C) 8...e5 9.Be2 (9.d4 e4 10.Ne5 ab4 11.ab4 Ra1 12.Qa1 c6 13.Qa7 Qc8 14.Nd7+=; 9.d3 Bg4 10.Be2 Be7 11.0–0 0–0 12.Na4 Bf3 13.Bf3 Re8 14.Qd2=) 9...ab4 10.ab4 Ra1 11.Qa1 Bg4 12.0–0 Be7 13.d3 c6 14.Qa7+=; D) 8...c6 9.Be2 ab4 10.ab4 Ra1 11.Qa1 b6 12.Nd4 bc5 13.Nc6 Qc8 14.b5=.

7.c5 a5 8.Be2= ab4 9.ab4 Ra1 10.Ba1 b6 11.c6 Nb8 12.b5 Bd6 13.0–0 0–0 14.d3 +=.

7.c5 Be7 8.d3 A) 8...a5 9.Nd4 ab4 10.Nf5 ef5 11.ab4 Ra1 12.Ba1 0–0 13.Bc3 f4 14.ef4+=; B) 8...0–0 9.Nd4 Bg4 10.f3 e5 11.fg4 ed4 12.Bd4 a5 13.h4 ab4 14.ab4+=; C) 8...c6 9.Nc3 (9.Nbd2 Qc7 10.Be2 0–0 11.Qc2 Rfe8 12.Qc3 Bg4 13.0–0 b6 14.cb6=; 9.Be2 Qc7 10.0–0 e5 11.Nc3 b6 12.d4 e4 13.Nd2 0–0 14.f3=) 9...e5 10.Be2 b6 11.d4 bc5 12.Ne5 Ne5 13.de5 Nd7 14.b5=; D) 8...Bg4 9.Nbd2 (9.Be2 0–0 10.0–0 c6 11.Ne5 Ne5 12.Be5 Be2 13.Qe2 Nd7 14.Bc3=) 9...0–0 10.Be2 c6 11.0–0 Qc7 12.h3 Bh5 13.e4 Bf3 14.Bf3=.

7.c5 Be7 8.Nd4 A) 8...a5+= 9.Nf5 (9.c6 bc6 10.Nc6 Qc8 11.Ne7 Ke7 12.b5 Qb7 13.Nc3 Rhb8 14.Na4+=) 9...ef5 10.Qf3 g6 11.Be2 0–0 12.Nc3 c6 13.Qh3 Kh7 14.0–0+/–; B) 8...c6 9.Nf5 ef5 10.Be2 Qc7 11.0–0 f4 12.Nc3 0–0–0 13.Qa4 Kb8 14.d4=.

7.c5 Be7 8.Be2 0–0 (8...Bg4 9.0–0= (9.d3 0–0 10.0–0 c6 11.Ne5 Ne5 12.Be5 Be2 13.Qe2 Nd7 14.Bc3=; 9.h3 Bf3 10.Bf3 c6 11.0–0 e5 12.d4 e4 13.Be2 0–0 14.Nd2=; 9.Bc3 0–0 10.0–0 c6 11.d4 Ne4 12.Qc2 Bf5 13.Qa4 Qc7 14.Qd1=) 9...a5 10.d3 0–0 11.Nbd2 Bf3 12.Nf3 c6 13.Qc2 Qc7 14.Nd4+=; 8...c6 9.Nd4 (9.0–0 Qc7 10.Nd4 Bg6 11.f4 0–0 12.Qc1 a5 13.f5 ef5 14.Nc3=; 9.d4 0–0 10.0–0 b6 11.Ba6 Rb8 12.Qe2 Bg4 13.cb6 ab6 14.b5=) 9...Bg6 10.f4 e5 11.fe5 Ne5 12.0–0 Nd3 13.Bc3 Qd7 14.Qb3+=) 9.d4 (9.Nd4 Be4+= (9...Bb1 10.Rb1 e5 11.Nf5 Re8 12.d4 e4 13.b5 Nf8 14.Qc2+=) 10.c6 bc6 11.Nc6 Qe8 12.f3 Bb1 13.Rb1 Bd6 14.0–0+=; 9.0–0 Be4 10.Nd4 e5 11.d3 Bg2 12.Kg2 ed4 13.Bd4 Nh7 14.Bb2+=) 9...c6 (9...a5 10.b5 Ne4 11.0–0 b6 12.c6 Ndf6 13.Ne5 Re8 14.f3+=) 10.Nbd2 (10.0–0 b6 11.Ba6 Rb8 12.Qe2 Bg4 13.cb6 ab6 14.Rc1=) 10...Ne4 (10...b6 11.Rc1= Qc7 12.cb6 ab6 13.Bb5 c5 14.dc5=) 11.Ne4 Be4 12.0–0 a6 (12...b6 13.Rc1 (13.Nd2 Bf5 14.Ba6=) 13...Qc7 14.cb6=; 12...Qc7 13.Bd3 Bd3 14.Qd3=) 13.Rc1 (13.Bd3 Bd3 14.Qd3=) 13...f6 (13...b6 14.cb6 Qb6 15.Bc3+=; 13...Qc7 14.Nd2+=) 14.Nd2 Bh7 15.Bg4 (15.e4 de4 16.Qb3 f5+=) 15...f5 16.Bf3 Qc7 17.Qb3 e5 18.de5 Ne5 19.Be2 Kh8 (19...Bf6 20.Rcd1+=) 20.f4 Nd7 21.Nf3 Bf6 22.Nd4 White plans b5 22...Rae8 23.Bf3 (23.Rf3 Re7+=) 23...Re7 24.Rfe1 (24.Qd3 Rfe8 25.Rfe1 Bg6=) 24...Rfe8 25.a4 (25.Qd3 Bg6=) 25...g6 (25...Bg6 26.b5=) 26.b5 Bg8 27.b6 Qc8 (27...Qd8 28.a5=) 28.a5 (28.h4 Bh7=) 28...Bg7 29.g4 (29.Qa3!?=) 29...fg4–/+ 30.Bg4 Qd8 (30...Nc5 31.Qd1 Nd7 32.Qc2+=) 31.Qd3 Nf6 32.Bf3 Ne4 33.Re2 Qd7 (33...Bh7 34.Bg4+=) 34.Rg2 Bh7 35.Bg4 Qd8 36.Qb3 (36.Be2 Qb8+=) 36...Nc5 37.Rc5 Re3 38.Bc3? (38.Nc6 bc6 39.Bg7 Kg7 40.Qb2 Kg8 41.Rf2+= (41.Rc6 Re1 42.Kf2 Qh4 43.Rg3 Qh2 44.Rg2 Qf4 45.Bf3 Rf1 46.Kf1 Qf3 47.Kg1 Re1 48.Kh2 Qh5 49.Kg3 Qg5 50.Kh3 Re3 51.Kh2 Qh4 52.Kg1 Re1)) 38...Qh4 (38...Qh4 39.h3 Rc3 40.Qc3 Re4 41.Rd5 cd5 42.Qc8 Bg8–+) 0–1. Roy,Guy – Cloutier,Mario, Quebec Open, Montreal CAN, 2003.

6.Qa4 Nbd7

7.Qb5 A) 7...Rb8 A1) 8.c5 c6 9.Qe2 Be7 10.a3 Qc7 (10...0–0 11.d3 Qc7 12.Nbd2+=) 11.Nh4 Bh7+= 12.Nf3+=; A2) 8.Nd4 a6 9.Qa5 Bg6 10.c5 e5 11.Nf3 e4 12.Nd4=; B) 7...dc4 8.Nc3 c5 9.a3 cb4 10.ab4 Qb6 11.Qc4 Qb4+= 12.Qb4+=.

7.Nc3 A) 7...c6 A1) 8.Qb3 a5 9.ba5 A11) 9...Nc5 10.Qb6 Qb6 (10...dc4 11.Qd8 Rd8 12.Bc4=) 11.ab6 dc4+= 12.Bc4+=; A12) 9...Qa5 10.d4 Ne4 11.c5 Bc5 12.Bd3–+; A2) 8.cd5 ed5 9.b5 Nc5 10.Qd1 Bd6 11.Nd4 Bd3 12.bc6=; B) 7...a5 8.ba5 dc4 9.Rc1 Be7 10.Be2 Bd3 11.Bd3 cd3 12.Ne5+=; C) 7...dc4 8.Bc4 a6 9.Be2 b5 10.Qb3 c5 11.a3 Bd6+= 12.d3+=.

7.Nd4 Bg6 8.Nc3 c6 (8...dc4 9.Bc4 c6 10.Be2 Qb6 11.a3 c5+= 12.Nc2+=) 9.d3 e5 10.Nf3 a5 11.b5 Nc5 12.Qd1 +=.

7.Nh4 Bh7 8.Nf3 dc4 (8...Be4 9.Nc3 Bf3 10.gf3 dc4 11.Bc4 a6 12.Be2+=) 9.Bc4 c6 10.Qb3 Be4 11.d4 b5–/+ 12.Be2 –/+.

6.Qb3 Nc6

7.a3 Be7 8.d3 0–0 9.Nbd2 a5 10.b5 a4 11.Qc3 Na5 12.Be2 dc4 13.dc4 Ne4?? (better is 13...c6+=) 14.Qg7 1–0. ferminkatcho (1650) – fati888, kurnik, 2014.

7.c5 a5 8.a3 Be7 9.Bb5 0–0 10.Bc6 bc6 11.Nd4 ab4 =.

6.Qb3 Be7

7.d4 0–0 8.Nbd2 (8.Nc3 a5 9.b5 Re8 10.Be2 dc4 11.Bc4 Nbd7=) 8...c6 (8...Nc6 9.b5 dc4 10.Nc4 Nb4 11.Rc1 Nbd5=) 9.b5 (9.a3 Nbd7 10.Be2 b6 11.0–0 a5=) 9...c5 (9...cb5 10.cd5 a6 11.de6 Be6 12.Qd1=) 10.Be2 (10.cd5!? ed5 11.dc5 Bc5 12.Rc1+=) 10...Nbd7= 11.cd5 (11.0–0 a5=) 11...ed5 (11...Nd5? 12.e4 Nf4 13.ef5 ef5 14.Bc4 Ng2 15.Kf1+–) 12.0–0 (12.dc5 Nc5 13.Qd1 Qa5=) 12...c4+= 13.Qc3 Re8 14.Ne5 (14.a4 a6+=) 14...Bd6–/+ 15.f4 (15.Nd7 Bd7 16.a4 Qc7–/+) 15...Ne4 (15...Qe7 16.a3–/+) 16.Ne4+= Be4 17.Bh5 Rf8 18.a4 Nf6 19.Bf3 a5 (19...a6 20.ba6 Ra6 21.a5–/+) 20.Ba3+= Qe7 21.Bd6 Qd6 22.Rfe1 Rfc8 23.Ra3 Qb4 24.Rc1 Rc7 25.Qa1 Qd6 26.Rac3 Rac8 27.Kf2 h5 28.Rg1 g6 (28...h4 29.Rgc1–/+) 29.h3 (29.Rgc1 Re7+=) 29...Bd3 (29...Qe6 30.Kg3+=) 30.Ke1 (30.Nd3!? cd3 31.Rd3 Rc2 32.Kg3=) 30...Ne4+= 31.Be4 Be4 (worse is 31...de4 32.g4 Qe7 33.Kd2=) 32.Kf2 Qf6 33.Nf3 Re7 34.Qa3 b6 35.Ng5 Bd3 36.Nf3 Rce8 37.Re1 Be4 38.Ng1 (38.Rec1 Bf3 39.gf3 Qh4 40.Kg2 g5 41.fg5 Qg5 42.Kf2 Qh4 43.Ke2 Qd4 44.Rg1 Kh7–+) 38...g5 (38...Qh4 39.g3 Qf6–/+) 39.g3 (better is 39.Ne2!?–/+) 39...h4 40.Ne2 (40.Ke2–+) 40...Bd3 41.Qc1 (41.Rd3 hg3 42.Ng3 gf4 43.Nf5 Qf5 44.e4 de4 45.Rg1 Kh7 46.Rc3 e3 47.Ke1–+) 41...hg3 42.Ng3 (42.Kf3 Re3 43.Qe3 Re3 44.Ke3 gf4 45.Nf4 Qe7 46.Kd2 Qg5–+) 42...gf4 43.Nh1 (43.Rd3 cd3 44.Kg2–+) 43...fe3 44.Kg1 Kh7 45.Kh2 Qf4 0–1. Jamieson,Ian (2010) – Glover,John, 33rd Fortis Open, 2007.

7.d4 Nc6 8.a3 0–0 9.cd5 ed5 10.Bd3 Qd7 11.Ne5 Ne5 =.

7.cd5 ed5 8.Be2 Nc6 9.0–0 Nb4 10.a3 Na6 11.Qb7 Nc5 +=.

7.cd5 Qd5 8.Bc4 Qd6 9.a3 Be4 10.Be2 Nbd7 11.d3 Bc6 =.

7.Be2 0–0 8.0–0 Nbd7 9.Nc3 (9.Nd4 Bg6=) 9...c6 (9...dc4 10.Bc4 Nb6 11.Be2=) 10.a4 (10.d3 dc4 11.Qc4 Nb6=) 10...a5=+ 11.Ba3 (11.b5 Nc5 12.Qd1 Nd3=+) 11...Qc7 (11...ab4!? 12.Bb4 Qb6=+) 12.b5 Nc5 13.Bc5 Bc5 14.d4 Bb4 15.c5 Bc3 (15...b6 16.cb6 Qb6 17.Nh4=) 16.Qc3 (16.b6 Qe7 17.Qc3 Ne4+=) 16...Ne4 17.Qb2 Bg4 (17...cb5 18.Bb5 b6 19.c6+=) 18.Ne5 (18.Rfc1 Qe7+=) 18...Be2 19.Qe2 (19.b6!? Qb8 20.Qe2 Nc5 21.Qb2=) 19...Nc5= 20.bc6 (< 20.dc5 Qe5 21.Rfd1 Rfd8=+) 20...bc6 21.Rfc1 (21.Qc2 Ne4 22.f3=) 21...Nd7 (better is 21...f6!?=) 22.Nc6+/– Qd6 23.Qb5 Rfc8 24.Na5 Rc1 25.Rc1 Qa3 26.Rf1 Nf6 27.h3 (27.Rb1 Ne4 28.Nc6 Nc3= (< 28...Ra4 29.Ne7 Kh7 30.Qe8+/–)) 27...Ne4 28.Nc6 Qa4 29.Qb7 Qa6 30.Rb1 (30.Qd7!?=) 30...Qb7–/+ 31.Rb7 Ra1 32.Kh2 Nf2 33.Ne5 (33.Nd8 Rh1 34.Kg3 Ne4 35.Kg4 Rf1–/+) 33...Rh1 (33...f6 34.Nd7–/+) 34.Kg3 Ne4 35.Kh4 Rf1 (36.g4 g5 37.Kh5 Rf6 38.Rb8 Kg7 39.Rg8 Kg8 40.Ng6 Ng3 41.Kh6 Rg6#) 0–1. Kreuzer,Uwe – Brunsch, Mannschaftspokal, 1992.

7.Be2 Nc6 8.c5 =.

6.b5 Be7

7.Be2 0–0 8.0–0 dc4 9.Bc4 Bd3 10.Bd3 Qd3 11.Nc3 (11.a4 a6=) 11...Nbd7 (11...Rd8 12.Qb1=+) 12.Ne1 Qg6 13.d4 Bd6 14.Nf3 Rfd8 15.Qe2 a6 16.e4 e5 (16...ab5 17.e5 b4 18.Nb5=+) 17.a4 ed4 18.Nd4 Ng4 19.h3 Ngf6 20.Nf5 Nc5 21.f3 Bf8 (21...Nd3 22.Kh1 Nb2 23.Qb2=) 22.Rfd1 Ne6 23.Kh1 ab5 24.ab5 Ra1 25.Ba1 Nf4?? (better is 25...Ra8=) 26.Rd8+– Ne2 27.Ne7 Kh7 28.Ng6 Ng3 29.Kh2 Nf1 30.Kg1 Bc5 31.Kf1 Kg6 32.Nd5 (32...Nd5 33.Rd5+–) 1–0. Kreuzer – Gruenfeld, 1981.

7.Be2 0–0 8.Nc3 Nbd7 9.0–0 c6 10.a4 Qa5 11.Qc1 (better is 11.bc6!? bc6 12.Nd4+=) 11...Nc5=+ 12.Nd4 Bd8?? (12...Bd3 13.bc6 dc4 14.cb7 Nb7 15.Bd3 cd3+/–) 13.bc6 bc6 14.Nc6 Qc7 15.Nd4 Qd6? (better is 15...Nd3 16.Qc2 Nb2 17.Qb2 Bg6+/–) 16.Nf5+– ef5 17.Nb5 Qc6 18.Bf3 Ba5? (better is 18...Nfe4 19.Qc2 dc4 20.Qc4 Qg6+–) 19.cd5 Qb6 20.Bd4 (better is 20.Bf6 gf6 21.Qb1+–) 20...Nb3 (20...Nfd7+–) 21.Bb6 ab6 (21...Nc1 22.Ba5 Nb3 23.Bb4 Na1 24.Bf8 Kf8 25.Ra1+–) 22.Qc2 Na1 23.Ra1 Rac8 24.Qd3 (24.Qf5 Bd2 25.e4 Rfd8+–) 24...Rc5 25.Rd1 Rfc8 26.Qf5 Rd5 (26...Rd8+–) 27.Qc8 1–0. valpa – Minstrel, HCL–C1788 playchess.de, 2003.

6.c5 c6

7.d4 Nbd7 8.a4 a6 (8...b6 9.Nc3=) 9.Bd3 Bd3 10.Qd3 Be7 11.Nc3 Qc7 (11...b6 12.0–0=) 12.0–0+= e5 (12...b6 13.Rfb1=) 13.de5 (13.e4 de4 14.Ne4 Rd8+=) 13...Ne5= 14.Ne5 Qe5 15.f4 Qe6 16.Ne2 (better is 16.Rae1 Rd8 17.f5+=) 16...Ng4 (better is 16...a5!?=+) 17.Nd4 (17.Bg7 Rg8 18.Bd4 Qg6 19.Qg6 fg6+/–) 17...Qe3 18.Qe3 Ne3 19.Rfe1 Nc4 20.Bc3 (20.Nf5!? Nb2 21.Re7 Kf8 22.Rb7+/–) 20...Kd7= 21.b5?? (better is 21.Nf5 Bf8 22.Bg7 Bg7 23.Ng7=) 21...ab5 22.ab5 Ra1 23.Ra1 Bc5 24.bc6 bc6 25.Kf2 Re8 26.Re1 Re1 (26...Ra8 27.Ra1 Ra1 28.Ba1–+) 27.Ke1 Bd4 28.Bd4 f6 29.h4 (29.Bc5 h5–+) 29...Kd6 30.Ke2 (30.g4 c5 31.Bf2 d4–+) 30...c5 31.Bf2 d4 32.Kd3 Kd5 33.g4 Nd6 34.Bg3 c4 35.Kc2 Ne4 36.Be1 d3 37.Kd1 c3 38.g5 hg5 39.fg5 fg5 40.hg5 c2 41.Kc1 Ng5 42.Bd2 Nf3 43.Bf4 Ke4 44.Bg3 Ke3 45.Bd6 Ke2 46.Bb4 g5 47.Bc3 g4 48.Bb4 g3 49.Bc5 d2 50.Kc2 d1Q 51.Kb2 g2 52.Bb6 g1R 53.Bg1 Qg1 54.Kc3 Qd4 55.Kc2 Qd3 56.Kb2 Kd1 57.Ka2 Qc2 58.Ka3 Qb1 59.Ka4 Kc2 60.Ka5 Kc3 61.Ka6 Kc4 (62.Ka7 Kc5 63.Ka8 Kc6 64.Ka7 Qb7#; 61...Qb8 62.Ka5 Qa7 63.Kb5 Nd4#) 0–1. ZeitNot2002 (1720) – Lions, Dos Hermanas Internet Section, 2003.

7.Be2 Nbd7 8.a4 (8.Nd4 Be4 9.0–0 e5=) 8...Be7 (8...a5 9.0–0–/+) 9.0–0 (9.a5 Qc7=) 9...0–0 (9...a5 10.b5 Bc5 11.d4+=) 10.Ne5 (better is 10.a5!?=) 10...a5–/+ 11.Nd7 Nd7 (worse is 11...Qd7 12.Qb3+=) 12.ba5 Nc5 13.d4 Ne4 14.f3 Nf6 15.Qd2 Qa5 16.Bc3 Qc7 17.Na3? (better is 17.Bb4!?–/+) 17...Ra4–+ 18.Bd1 (18.Nc2 Rfa8–+) 18...Raa8 (better is 18...Ra3 19.Ra3 Ba3–+) 19.Bb3?? (19.Bb4–+) 19...Ra3 (19...Ra3 20.Ra3 Ba3–+) 0–1. elsh1403 (1665) – calinbrasov (1625), kurnik, 2014.

6.c5 Be7

7.a3 a5 8.Be2 0–0 (8...ab4 9.ab4 Ra1 10.Ba1 Nc6 11.Bb5 0–0=) 9.0–0 b6 10.cb6 ab4 11.bc7 Qc7 =.

7.Nc3 0–0 8.Nd4 (8.Qa4 a5 9.a3 Nbd7 10.Qb5 ab4 11.ab4 Ra1+=; 8.d4 b6 9.Rc1 Nbd7 10.Ba6 c6 11.b5 bc5=; 8.a3 a5 (8...b6 9.d4 a5 10.Be2 Re8 11.0–0 ab4=) 9.Be2 ab4 10.ab4 Ra1 11.Qa1 b6=; 8.Be2 b6 9.d4 a5 10.a3 c6 11.0–0 Nbd7=) 8...Bg6 (8...Bh7 9.Qf3 a5 10.a3 Nbd7 11.Bb5 c6+=) 9.Nb3 (9.Qf3 a5 10.a3 Nbd7 11.Bb5 ab4+=) 9...Nbd7 (9...Nc6 10.b5 Nb4 11.d3 d4+=) 10.d4 c6 (10...a6 11.Bd3 Bd3=) 11.Bd3 Bd3 12.Qd3 =. Buss,Michael – Fisher,Carl, USCF85CB309, 1985.

7.Nd4 Bg6 8.Qa4 (8.Bb5 c6 9.Be2 b6 10.Qc1 0–0 11.0–0 Qc8=) 8...c6 9.Be2 a5 10.Nb3 Nbd7 11.b5 cb5 =.

7.Be2 0–0 8.0–0 c6 (better is 8...a5!?–/+) 9.d4 Qc7 10.Nc3 Nbd7 11.Nh4 Ng4 (11...Bh7!?+=) 12.Bg4+= Bh4 13.Bf5 ef5 14.Qh5 Bg5 15.f4 g6 16.Qh3 Bf6 17.Qh6 Rfe8 18.Rae1 (18.Rf3 b5+=) 18...Re6 (18...b5 19.Rf3=) 19.Rf3 Rae8 (19...b6 20.Rh3+=) 20.Qh3 (20.Rh3 b6+=) 20...Bg7 21.g4 fg4 22.Qg4 Nf6 23.Qh4 Ne4 24.Rh3 (24.Ne4 Re4 (worse is 24...de4 25.Rh3+/–) 25.Qg5 R8e6=) 24...Qd7 (24...Nd2 25.Bc1 Nc4 26.Re2=) 25.Re2 Nc3 26.Bc3 Re4 27.Re1 Qf5 28.Rf3 (28.Kg2 R4e6 29.Qf2 Bf6+=) 28...R4e6 29.Qf2 Bf6 30.Bd2 Qg4 (30...Kg7!?+=) 31.Rg3= Qf5 32.Rf3 Re4 (32...Kg7 33.Bc3+=) 33.Rd1 Kg7 34.Qf1 R4e7 35.Rc1 Rh8 36.Be1 (36.Rg3 a6+=) 36...Re4 37.Bg3 Rhe8 (37...Re6 38.b5+=) 38.Bf2 Bd8 (38...R4e7!?+=) 39.Qh3= Qf6 40.Rg3 Bc7 41.Rf3 Rh8 42.Qg2 (42.Qd7!? Re7 43.Qg4=) 42...Qf5+= 43.Re1 (43.Be1 Bd8+=) 43...Kf8 44.Rg3+= Ke8 45.Rg5= Qe6 46.Qg4 Kd7 47.Qe6 Ke6 48.Kh1 b5 49.Rf1 a5= 50.a3 ab4+= 51.ab4 Ra8 52.Bg3 Kf6 53.Bh4 Kg7 54.Bf2 Ra2 55.f5 Kf6 56.h4?? Rf2!–+ 57.fg6 Rh4 58.Kg1 Rf1 (58...Rf1 59.Kf1 Rh1 (59...Kg5? 60.g7 Rh6 61.g8Q Rg6 62.Qf8+–) 60.Kg2 fg6 (60...Kg5 61.g7 Rh2 62.Kf3 Rh3 63.Ke2+–) 61.Rg6 Kg6 62.Kh1 Kf5–+) 0–1. Barbarickiy,Yuri – Matvienko,Ivan, Rtng–Tournament, 2008.

7.Be2 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 Nc6 11.Bb5 0–0 =.

7.Bf6 Bf6 8.d4 Nd7 (8...a5 9.b5 Nd7 10.Nbd2 0–0 11.Be2 Qe7=) 9.Bd3 Bg4 10.Nc3 a5 11.Qb3 Bf3 =.

6.Nd4 Be4

7.c5 Be7 8.a3 (8.Nc3 0–0 9.Ne4 de4 10.Bc4 a5 11.a3 ab4 12.ab4=; 8.Qa4 c6 9.d3 Bg6 10.Be2 Nbd7 11.Qc2 e5+= 12.Nf3+=) 8...0–0 9.d3 Bg6 10.Be2 a5 11.0–0 ab4 12.ab4 =.

7.cd5 A) 7...ed5 8.a3 (8.d3 Bg6 9.a3 Bd6 10.Be2 c6 11.0–0 0–0 12.Nd2=) 8...a5 9.d3 Bg6 10.b5 Bd6 11.Be2 0–0 12.0–0=; B) 7...Bd5 8.Nc3 e5 9.Nd5 Nd5 10.Nc2 Nd7 11.a3 Bd6 12.Qf3+=; C) 7...Nd5 8.a3 C1) 8...Nd7 9.d3 Bg6 10.Nf3 (10.Nd2 c5 11.bc5 Nc5 12.Nc4=) 10...c6 11.e4 N5f6= 12.Be2=; C2) 8...a5 9.d3 Bg6 10.b5 Bd6 11.Nc3 Nc3 12.Bc3=.

6.Nd4 Bg6

7.a3 a5 8.ba5 (8.c5 Be7 9.Qa4 c6 10.Nb3 Bc2 11.d4 Nfd7 12.b5+=) 8...Ra5 9.Bc3 Ra8 10.Be2 (10.Qb3 Nbd7 11.cd5 Nd5 12.Be2+=) 10...dc4 11.Bc4 c6= (11...e5 12.Nf3=) 12.d3 +=.

7.a3 c5 8.bc5 Bc5 9.cd5 Nd5 10.Qb3 (10.Bb5 Nd7 11.Nb3 Bd6 12.Bg7=) 10...Nd7 11.Bc4 N5f6= 12.0–0 =.

7.a3 Nbd7 A) 8.cd5 Nd5 9.Nc3 N5f6 (9...Nc3 10.Bc3 e5 11.Nb3 Qf6 12.d4=) 10.Qf3 A1) 10...e5 11.Nf5 c6 (11...a5= 12.b5=) 12.d4=; A2) 10...Rb8 11.Rc1 a6 12.Qg3=; B) 8.Nc3 dc4 9.Bc4 a5 10.b5 Ne5 11.d3 Qd6 12.Nce2=; C) 8.c5 e5 9.Nf3 Bh5 10.Be2 Qe7 11.0–0 c6 12.d4=.

7.Qa4 A) 7...c6 8.c5 (8.Qb3 Nbd7 9.cd5 Nd5 10.Nc3 Nb4 11.Ne6 Qa5 12.e4+=; 8.b5 c5 9.Nf3 Nbd7 10.cd5 Nb6 11.Qd1 Nbd5 12.Ne5+=) 8...Nbd7 9.Nb3 Be7 10.Be2 Nb6 11.Qa5 Nc4 12.Qd8=; B) 7...Nbd7 8.Nc3 (8.cd5 Nd5 9.a3 a5 10.ba5 c6 11.Nb3 b5 12.Qg4+=) 8...dc4 9.Bc4 c6 10.Be2 Qb6 11.a3 c5 12.Nc2+=.

7.Nc3 a5 8.b5 (8.ba5 Ra5 9.cd5 ed5 10.Be2 Be7 11.0–0 0–0= 12.f4=) 8...e5 9.Nf3 Bh5 10.Be2 e4 11.Ne5 Be2 12.Qe2 =.

7.Nc3 dc4 8.Bc4 Nbd7 9.Qb3 a5 10.ba5 Nc5 11.Qb5 c6+= 12.Qb6 –/+.

7.Nc3 c6 8.a3 (8.cd5 ed5 9.a3 a5 10.b5 c5 11.Nf3 Bd6 12.Be2=) 8...Bd6 9.cd5 ed5 10.Be2 0–0 (10...a5 11.b5 0–0 12.0–0=) 11.0–0 a5= 12.b5 =.

7.Nc3 Nbd7 8.cd5 ed5 9.Qb3 c6 10.Be2 a5 11.b5 Rc8= 12.bc6 =.

7.Nc3 e5 8.Qa4 Qd7 =.

7.Nc3 e5 8.Nf3 d4 (8...Nc6 9.cd5 Nb4 10.Rc1 Bd6 11.Ne5 Nc2= 12.Rc2=) 9.ed4 ed4 10.Ne2 d3 11.Nf4 Nc6 12.Ne5 –/+.

7.cd5 Nd5 8.a3 (8.Qa4 c6 9.b5 c5 10.Nf3 Nb4 11.Na3 Bd3 12.Bc3+=) 8...Nd7 9.Nc3 Nc3 10.dc3 e5 11.Nf3 a6 12.c4 =.

6.cd5 ed5

7.b5 a6 8.Nc3 ab5 9.Bb5 (9.Nb5 Nbd7=) 9...c6 10.Ba4 (10.Be2 Bc5=) 10...Be7 (10...b5 11.Bc2 Bc2 12.Qc2=+) 11.0–0 (11.Bc2 Bc2 12.Qc2 0–0=) 11...0–0 12.h3 (12.Bc2 Bg4=) 12...Bg6 (12...Na6 13.Bc2 Qd7 14.d3=+) 13.d4 (13.Bc2=) 13...c5 (better is 13...Nbd7!?=+) 14.dc5+= Bc5 15.Bb3 Bb6 (better is 15...Be4!?+=) 16.Nd5+– Nd5 17.Bd5 Ra5 18.Bb7 (better is 18.e4 Re8 19.Ne5+–) 18...Qe7 (better is 18...Qc7 19.Bd5 Rd8=) 19.Bd5 (better is 19.Bc3!? Qb7 20.Ba5 Ba5 21.Qb3=) 19...Rd8–/+ 20.Qb3 (20.Bf7 Bf7 21.Qc2 Bd5–/+ (21...Ra2? 22.Ra2 Ba2 23.Bd4+–)) 20...Rdd5 21.a4 (21...Qd6 22.Bc3–+). gtate (1815) – redrook (2350), net–chess.com, 2008.

7.b5 Bd6 8.Nd4 Bg4 9.Be2 Be2 10.Qe2 =.

7.Be2 Bd6 =.

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  • 1.b4 (4 players, 10 days/move)
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  • 1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 (Kucharkowski-Meybohm gambit, 6 players, 10 days move)
  • 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 (Sokolski gambit, 4 players, 3 days/move)
  • 1.c4 Nf6 2.b4 (English orangutan, 4 players, 3 days/move)
  • 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
  • 1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 (French: Wing gambit, 4 players, 3 days/move)

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