9.a4 dc4 10.Na3 (10.Qc2 e5=) 10...e5 (10...c3 11.Bc3 e5 12.d3=) 11.Nc4 Bc7 (11...e4 12.Nd6 Qd6 13.Ne1=) 12.d4 e4 13.Nfe5 Rd8 14.Qc2 cd4 15.ed4 Nb6 16.a5 (16.Nb6 Bb6 (worse is 16...ab6 17.Bc4 Rf8 18.Rfe1+/–) 17.Rfd1 Be6=) 16...Nbd5 17.Rfc1 Be6 (17...Qe8 18.Ne3 Nf4 19.Bf1+=) 18.a6 Nb4 (18...Rdb8+=) 19.Qa4 (19.Qb1!? Bc4 20.Bc4 (worse is 20.Nc4 ba6 21.ba6 Rab8+=; 20.Rc4?! ba6 21.Ba3 Rd4 22.Nf7 Rd7=) 20...ba6 21.Ba3 Be5 22.de5 (worse is 22.Bb4 Bd6 23.Bd6 Qd6+=) 22...Qe5 23.Bb4+/–) 19...ba6= 20.ba6 Nfd5 (20...Rab8 21.Ba3 Be5 22.de5=) 21.Ba3 Be5 22.Ne5 Nf4 23.Bf1 Qg5 (23...Rd4 24.Rd1 Qg5 25.g3 Qe5 26.gf4–/+) 24.g3= (24.Bb4? Nh3 25.Kh1 Nf2 26.Kg1 Qe3–+; 24.Qb4?? Nh3 25.Kh1 Nf2 26.Kg1 Qe3–+) 24...Nbd5 (better is 24...Nfd3!? 25.Rd1 Rab8= (worse is 25...Ne5 26.de5 Nd5 27.Qe4+/–)) 25.h4+/– Qh5 (25...Qf5 26.gf4 f6 27.Nc4 Qg4 28.Bg2 Nf4 29.Ne3 Qh4 30.Rc2+=) 26.gf4 Qh4 (better is 26...f6 27.Nc4 Nf4+=) 27.Qb3= e3 28.Qc2 (28.Qe3 Ne3) 28...Nf4 29.fe3 Qg3 30.Bg2 Qe3 31.Qf2 Ng2 32.Qe3?? Ne3–/+ 33.Nc6 Re8 34.Bc5+= Nf5 35.Na7 =. Kiviaho,Allan – Lampela,Olavi, corr FIN–ch fin, 1971.

9.Qc2 b6 10.d4 (10.Nc3 Bb7=) 10...Bb7=+ 11.Ne5 cd4 12.ed4 dc4 (12...Rac8 13.Nd2=+) 13.Nc4 Rac8 14.Qa4 Rc4 (14...Ne4 15.Nd6 Nd6 16.Nc3=+) 15.Qc4 Rc8 16.Qa4 (16.Qd3!?=) 16...Ne4=+ 17.g3 Ng5 (17...Qg5!? 18.Qb3 h5=+) 18.Rc1+= Qf6 (18...Rd8 19.Rc6 (19.Qa7?? Nh3 20.Kf1 Qf6–+) 19...Qf6 20.Nc3+–) 19.Rc8+– Bc8 20.Kf1 Ne4 (20...Qf5 21.Nd2 (worse 21.Qa7 Qe4 22.Bd1 Qh1 23.Ke2 Qf3 24.Kd2 Qf2 25.Kc1 Qe3 26.Kc2 e5–/+) 21...Qh3 22.Kg1+–) 21.f3 Ng3 22.hg3 Bg3 23.Bd1 (23.Qa7?? Qh4 24.Bd1 Qh2 25.Qd7 Qf2) 23...Bb7 24.Nd2 Qg5 25.Ke2 Nf6 26.Bc1 Bd6 27.Qa7 (27.Bb3!?+–) 27...Nd5= 28.Nc4 (28.Qb7?? Nf4 29.Ke1 Qg3 30.Kf1 Qg2 31.Ke1 Nd3) 28...Qg2 29.Kd3 Qf1 30.Be2 Nb4 31.Kd2 Bf4 32.Ne3 Be3 33.Ke3 Qg1 34.Kd2 Qd4 35.Ke1 Qh4 36.Kf1 Qh3 37.Kf2 Qh2 38.Kf1 Qh1 39.Kf2 Qh2 40.Kf1 Qh3 41.Kf2 Qh2 42.Kf1 Qh3 43.Kf2 Qh2 44.Kf1 Qh3 45.Kf2 Qh2 46.Kf1 Qh3 47.Kf2 Qh2 48.Kf1 Qh3 49.Kf2 Qh2 50.Kf1 Qh3 51.Kf2 Qh2 52.Kf1 Qh3 53.Kf2 Qh2 54.Kf1 Qh3 55.Kf2 Qh2 56.Kf1 Qh3 57.Kf2 Qh2 58.Kf1 Qh3 59.Kf2 Qh2 60.Kf1 Qh3 61.Kf2 Qh2 62.Kf1 Qh3 ½–½. DEFFM – GuestHXNK, freechess.org, 2018.

9.Qc2 e5 10.d3 (10.cd5 Nd5 11.Bc4 N7b6=+) 10...d4 11.e4 (11.Nbd2 a6=) ½–½. Woschkat,Karl_Heinz – Erler,Ekkehard, CiF FT–95–0037A, 1995.

9.Nc3 Nb6 10.cd5 (10.d3 dc4 11.dc4 e5=) 10...ed5 11.a4 Be6 (11...Bg4 12.d4 c4 13.a5=) 12.a5 (12.Qc2 Bg4=) 12...Nc4 13.Bc4 dc4 14.Qe2 (14.a6 b6=) 14...Nd5 (14...Rfd8 15.e4 Bf4 16.e5=) 15.Ne4= (15.Qc4? Ne3 16.Qe4 Nf1 17.Rf1 Rae8–+) 15...Nb4 16.Nfg5 (16.Nd6 Qd6 17.a6 b6=+) 16...Bd5 (16...Nd3 17.Bc3 Bc7 18.a6 ba6 19.Ra6=) 17.Nd6= Qd6 18.e4 Be6 (18...Nd3 19.ed5 Qd5 20.Bg7 Kg7 21.Qg4=+) 19.f4 Nd3 20.e5 (20.Qh5!? h6 A) < 21.Ne6 Qe6 (21...fe6?! 22.Be5 Qd7 23.Rab1=) 22.Be5 f6–/+; B) 21.Be5=) 20...Qd7–/+ 21.Bc3 Bf5 22.Ne4 Rfe8 23.Ng3 Rad8 24.h3 g6 25.Qf3= Qd5 26.Qd5+/– Rd5 27.Nf5 gf5 28.Ra4 f6 29.Rc4 fe5 30.fe5 Ne5 31.Rcf4 Ng6 32.Rf5+– Rf5 33.Rf5 Re1? 34.Kf2 Rb1 35.Rc5 b6 36.Rc8 Kf7 37.Rc7 Ke6 38.Ra7 Rb5 39.Ra6 Kd5 40.Rb6 Rc5 41.a6 (41…Rc7 42.Rb5 Kc6 43.Ra5 Rf7 44.Ke3 Re7 45.Kf3+–) 1–0. Miltner,A – Kluss,K, Bad. Meisterschaft TBB, 1997.

9.Nc3 Bc7 10.a4 (10.d4 dc4 11.Bc4 cd4 12.Qd4 Rd8=) 10...b6 (10...e5 11.cd5 e4 12.Ne1=) 11.d4 (11.cd5 ed5 12.d4 Qe6=) 11...Bb7 12.Qb3 (12.cd5 Nd5 13.Qd3 Nb4=) 12...Qd6 (12...Rac8 13.cd5 cd4 14.Nd4 Nd5 15.Rfd1=) 13.g3 (better is 13.cd5 Rac8 14.de6 Bf3 15.g3 Be2 16.ed7 Qd7 17.Ne2+=) 13...e5 (better is 13...Rac8+=) 14.de5+/– Ne5 15.Ne5 (15.Nd5 Nf3 16.Bf3 Nd5 17.cd5 a6+/–) 15...d4 16.ed4 cd4 17.Nc6 (17.Bf3 Bf3 18.Nf3 dc3+/–) 17...dc3 (17...Bc6!? 18.Ba3 Qe6 19.Bf8 Rf8 20.bc6 dc3+/–) 18.Ba3+– (worse is 18.Qc3 Bc6 19.bc6 Rfe8+= (19...Qc6? 20.Bf3 Qe6 21.Rfe1+–); 18.Bc3?! Bc6 19.bc6 Qc6+=) 18...Qe6 19.Bf8 (19.Bf3!? Bc6 20.Bc6+–) 19...Qe2 20.Bb4 Bc6 21.bc6 Ne4 22.Rae1 Qd3 23.Re3?? (better is 23.f3 Qd4 24.Kh1+/–) 23...Qf1!–+ 24.Kf1 Nd2 A double attack 25.Ke2 Nb3 (25...Nb3 26.Bc3 Nc5–+) 0–1. Adam,Stefan – Schulze,Peter, corr DDR–ch M551, 1973.

9.d3 b6 10.Nbd2 e5 11.a4 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0-0 8.0-0 b6 9.a4 Bb7 10.d3 Qe7 11.Nbd2 e5).

9.d3 dc4 10.dc4= Rd8 (10...e5 11.Nc3=) 11.Qc2 a6 (11...e5 12.e4=) 12.a4 (12.Rd1 e5=) 12...b6 (12...e5 13.e4=) 13.Nc3 Bb7 14.Rfd1 Ne5 (14...Ng4 15.a5=) 15.Ne5 Be5 16.f4 (16.Bd3 ab5 17.ab5 Ra1 18.Ba1 Ng4+=) 16...Bd6 17.ba6 Ra6 18.Nb5 Ne8 (18...Be4 19.Bd3 Bd3 20.Rd3=) 19.Rd2+= Bb8 (19...Bc7 20.Rd8 Bd8 21.Rd1+=) 20.Rad1 (20.Rd8 Qd8 21.Rd1 Qc8+=) 20...Rd2= 21.Qd2 (worse is 21.Rd2 e5 22.fe5 Be5 23.Be5 Qe5+=) 21...Ra8 (21...Ra4? 22.Qd8 Bd6 23.Rd6 Qd8 24.Rd8+–) 22.Bd3 e5 23.Bc2 (23.Bf5 g6 (23...Ra4? 24.Qd8 Qd8 25.Rd8+–) 24.Qd7 Qd7 25.Bd7 Kf8 26.Be8 Ke8 27.Be5 Be5 28.fe5 Ke7+/–) 23...ef4= 24.ef4 Qh4 25.g3 Qh3 26.Nc3 Bc7 (26...Bd6 27.Nd5+=) 27.Nd5 Bd8 28.Be4 (28.Qe2 Bc6+=) 28...Qh6 (28...Bc6 29.Nb6 Be4 30.Na8+=) 29.Bg2 Bc6 30.Re1 Rb8 31.Qe3+/– Nd6 32.Nb6! Bb6 33.Bc6 Qg6 34.f5 Qf5 35.Qe7 Qd3 36.Bd5 Qg6 37.a5! Ba5 38.Qa7 (38.Qa7 Rc8 39.Qa5+–) 1–0. Bothe,Erhard – Neumann,Peter, corr BdF, 2000.

9.d3 Rd8 10.Nbd2 =.

9.d3 e5 10.Nc3 (10.cd5 Nd5 11.Nbd2 b6=) 10...d4+= Black fights for the Initiative 11.Nd5 (11.Ne4 Ne4 12.de4 a6+=) 11...Nd5 12.cd5 f5 (12...a6 13.ba6 Ra6 14.Qb3+=) 13.e4 (13.Nd2 Nf6+=) 13...c4 14.dc4 fe4 15.Nd2 Nf6 16.Qb3 d3 17.Bd1 Bc5 (17...Bc5 18.a4 e3 19.fe3 Be3 20.Kh1 Ne4–+ (20...Bd2?! 21.Ba3 Qd8 22.Qd3+=)) 0–1. Klinke,W – Strapko,Georg, corr 7074, 1974.

9.d4 e5 10.de5+= Ne5 11.cd5 Neg4 (11...Rd8 12.Nc3+=) 12.Nc3 Ne3? (better is 12...Bf5!?+/–) 13.fe3+– Qe3 (13...Ng4 14.e4 Ne3 15.Qd3 Nf1 16.Rf1+–) 14.Kh1 c4? (14...Re8 15.Bd3 Bg4 16.Qc2+–) 15.Qd4 (15.Bc4 Ng4 16.Qe1 Qh6+–) 15...Qe7 (15...Qd4 16.Nd4 Be5+–) 16.Rae1 Bf5 (16...Bc5 17.Qc4 Qd6 18.Ng5+–) 17.Nh4 (17.Nd2 Qd7+–) 17...Bg6 18.Bc4 Qc7 19.Ng6 (19.Rf6 gf6 20.Ne4+–) 19...hg6 (19...fg6 20.b6 ab6+–) 20.Ne4 Nh5 21.g4 f6 (21...Rae8 22.Nd6 Re1 23.Re1+–) 22.gh5 Be5 (22...Rac8 23.Nd6 Qd6 24.hg6 Rc4 25.Qc4 Qb4 26.Qb4 Rb8 27.Qh4 Rd8 28.Qh7 Kf8 29.Qh8) 23.d6 (23.d6 Qc4 24.Qc4 Kh7 25.hg6 Kh6 26.Qe6 f5 27.Bc1 Kh5 28.Rf5 Kh4 29.Nf2 Bf4 30.Qe2 Rf5 31.Qg4#) 1–0. Boeykens – Van Damme, corr Memorial O'Kelly 1986.

10.Bc4 Nb6 11.Be2= e5 12.d3 Bg4 (12...Rd8 13.Qc2=) 13.Nd2 (13.a4 Nbd5=) 13...Be2 14.Qe2 Rad8 (14...a6 15.a4=) 15.a4 Nbd5 16.Nc4 Bb8 (16...Nc3 17.Bc3 Rfe8 18.a5=) 17.Rfd1 (17.Nd5 Rd5 18.a5 Rfd8=) 17...Nb4 (17...Nc3 18.Bc3 Nd5 19.Rac1=) 18.Ne4 (18.a5 Qd7=) 18...Nfd5 19.Nc3 f5 (19...Nc3 20.Bc3 Nd5 21.Rac1=) 20.Rd2 (20.Nd5 Rd5 21.e4 Rd7=) 20...Nf6 (better is 20...e4 21.de4 fe4 22.Nd5 Rd5 23.Rd5 Nd5=) 21.d4 (better is 21.e4=) 21...ed4–/+ Black gets strong initiative (21...cd4?! 22.ed4 e4 23.a5=) 22.ed4 Qc7 23.Qe5 (23.g3 cd4 24.Qe6 Rf7–/+) 23...cd4 (23...Rd4 24.Qc7 Bc7 25.Rd4 cd4 26.Ne2–/+) 24.Qc7–/+ Bc7 25.Ne2 (25.Na2!? Na2 26.Ra2+=) 25...d3–+ 26.Nd4 Ne4 27.Rdd1 (27.Ne6 Nd2 28.Nd2 Nc2–+) 27...Nc5 28.Rac1 (28.Ra3 Nc2 29.Nc2 dc2–+) 28...Bf4 (28...Na4?! 29.Ne6 Nb2 30.Nb2–/+) 29.Ne3 Na4 30.Ba1 Rc8 (30...Nc2 31.Rd3 Nc5 32.Rd2 Ne3 33.Rc5 Bh2 34.Kh1–/+) 31.Rb1 (31.Rc8 Rc8 32.Ndf5–+) 31...Nc2 (31...Be3 32.fe3 Rc4 33.Nf3–+) 32.Rd3? (better is 32.Nd5 Nd4 33.Bd4–/+) 32...Nc5–+ 33.Rdd1 Ne3 34.fe3 Be3 35.Kf1 Ne4 36.Ke2 Bd4 37.Rd4 Rc2 (37...Rc2 38.Ke3 Rg2–+) 0–1. Adam,Stefan – Flack,Rolf, corr DDR–ch M551, 1973.

10.Bc4 Rd8 11.a4 =.

10.Bc4 e5 11.d3 =.

10.Nbd2 cd4 11.Bd4 dc4 A) worse is 12.Bc4 e5 13.Bb2 Bf5+= (worse is 13...Nc4 14.Nc4 Rd8 15.Nd6 Rd6 16.Qa4+=); B) 12.Bf6 gf6 13.Nc4 Nc4 14.Bc4=.

10.Nbd2 cd4 11.Bd4 Bd7 12.Rc1 Ba3 13.Rc2 Rfc8 14.Bd3 Bd6 (14...Bb4 15.Qb1 Bd2 16.Bf6 Qf6 17.Nd2 dc4 18.Nc4 Nc4 19.Rc4=) 15.cd5 (15.Ne5 Bb4+=) 15...ed5 16.a4 Rc2 17.Bc2 Bg4 18.Qb1 Nbd7 (18...Rc8 19.Rc1=) 19.h3+= Bh5 20.Nh4 Be5 21.Ndf3 (21.Nf5 Qa3+=) 21...Bf3= 22.Nf3 Bd4 23.Nd4 Rc8 24.Rd1 g6 25.Ne2 Ne5 26.Nf4 Nc4 27.Bb3 (27.Nd5? Nd5 28.Rd5 Na3–+) 27...Qe5 28.Qc2 (28.Qd3 Nb6+=) 28...Rc7 (better is 28...Kg7!? 29.Qd3 Nb6=) 29.Nd5+/– Nd5 30.Bc4 Nb6 31.Rd4 Nc4 32.Rc4 Qa1 33.Kh2 Qe5 34.g3 Rc4 35.Qc4 b6 36.Qc8 Kg7 37.Qb7 Qa1 38.Qe4 (38.Qa7?! Qf1=) ½–½. Hanison,Bernard – Rohde Jensen,Kristian, corr ICCF, 1991.

10.Nbd2 cd4 11.Bd4 e5 12.c5 Bc5 13.Be5 (13.Bc5 Qc5 14.Ne5 Qe7=) 13...Bf5 (13...Be6 14.Qb1=) 14.a4 (14.Nb3 Ba3=) 14...Bb4 (14...Rac8 15.a5 Nbd7 16.Bd4=) 15.Nb3 (15.Bf6 Qf6 16.a5 Nd7=) 15...Rac8 (15...Rfc8 16.Nbd4 Be4 17.Bf6 Qf6 18.Qb3=) 16.Bf6 Qf6 17.a5 Nc4 18.Qd5 Bc3 19.Rac1 (19.Bc4 Ba1 20.Ra1 Rfd8 21.Qb7 Rc4=) 19...Be6 20.Qg5 Ne3 (20...Na5 21.Qf6 gf6 22.Na5 Ba5 23.Nd4=) 21.Qe3+= Bb3 22.Qa7 Qe6 (22...Bd5 23.a6 ba6 24.ba6=) 23.Bd3 Qd7? (better is 23...Bd5+=) 24.Be4+– Qb5 25.Qb7 Qb7? (better is 25...Qa4 26.a6 Bc4 27.Rc3 Ba6 28.Rc8 Bb7 29.Bb7 Rc8 30.Bc8 Qc6+–) 26.Bb7 Rc7 27.a6 1–0. Sakai,Kiyotaka – Zillmer,Jim, corr or01–013, 2001.

10.Bd3=.

10.cd5 Nd5 11.Qd3=.

10.ba6 ba6!? 11.Nc3 Rb8=+.

10.ba6 Ra6 11.cd5+= Rb6 12.de6 Rb2 13.ed7 Bd7 14.Qc1 Rb4 15.Nc3 Ne4? (15...Ra8 16.d4+=) 16.Nb5?? (better 16.Nd5 Qe6 17.Nb4 cb4 18.Bb5+-) 16...Bb8 17.d3 Ng5 18.d4 (18.Ng5!? Qg5 19.f4+/-) 18...Nf3= 19.Bf3 Bb5 (19...Rc8 20.Bb7 Bb5 21.Bc8 Bf1 22.Kf1 (worse 22.Qf1 Qc7 23.g3 Qc8-/+) 22...cd4 23.a5+=) 20.ab5+= Rb5 (20...cd4 21.ed4 Rd4 22.Re1+=) 21.dc5 (better 21.Be2!? Qc7 22.g3+/-) 21...Rc5= 22.Qb2 (22.Qb1!? b5 23.Ra8=) 22...Be5=+ 23.Qb7 Qb7 24.Bb7 Ba1 25.Ra1 Rb8 26.Bf3 Rc2 27.g3 g6 28.h4 Rbb2 29.Rf1 h5 30.Kg2 Kg7 31.Be4 Rd2 32.Kf3 f6 33.g4? (better 33.Bc6!?-/+) 33...Rf2?? (better 33...hg4 34.Kg3 f5-+) 34.Rf2+- (34.Rf2 hg4 35.Kg3 Rf2 36.Kf2+-) 1-0. Antares_Sco (1720) - fadygerges (1715), Hourly SuperBlitz Arena, lichess.org, 2019.

10.Qc2 A) 10...g6 A1) 11.Re1 b6 12.d3 Bb7 13.Nbd2 Qd8 14.g3 Qc7 15.Bc3 Rfe8 16.Qb2 Kg7; A2) 11.cd5 ed5 12.d4 c4 13.Nc3 Nb6 14.h3 Bf5 15.Qd2 Rfe8 16.Nh4 Be4; A3) 11.g3 b6 12.d3 Bb7 13.Nbd2 Rfd8 14.h3 Qf8 15.Bc3 Re8 16.Qb2 Qg7; A4) 11.h3 b6 12.d3 Bb7 13.Nbd2 Rfe8 14.Rfe1 Rac8 15.Rac1 Qf8 16.Ng5 Be5; A5) 11.Ng5 b6 (11...h6 12.Nf3 b6 13.Nc3 Bb7 14.cd5 ed5 15.h3 Rac8 16.Rfd1 d4; 11...Nb6 12.Na3 h6 13.Nf3 e5 14.cd5 Bf5 15.d3 Nfd5 16.e4 Nb4) 12.Nc3 h6 13.Nf3 Bb7 14.cd5 ed5 15.Rfe1 Rfe8 16.g3 Qe6; A6) 11.Nc3 b6 12.Rfe1 Bb7 13.cd5 ed5 14.g3 Rac8 15.Qd3 Rfe8 16.Rab1 Qf8; B) 10...b6 B1) 11.Nc3 Bb7 (11...g6 12.d4 Bb7 13.cd5 ed5 14.Ba3 Rac8 15.Rad1 Rc7 16.g3 Rfc8; 11...dc4 12.Ne4 Bb7 13.Nd6 Qd6 14.Qc4 h6 15.d3 Rfe8 16.h3 Nd5) 12.cd5 ed5 13.Qf5 Rfe8 14.g3 g6 15.Qg5 Qe6 16.d4 Qh3; B2) 11.d3 Bb7 (11...h6 12.Nbd2 Bb7 13.h3 Qd8 14.Bc3 Qc7 15.Qb2 Rfd8 16.Rfc1 Re8; 11...Rd8 12.Nbd2 h6 13.h3 Bb7 14.Rab1 Re8 15.Bc3 Qd8 16.Qb3 Qc7; 11...Re8 12.Nbd2 Bb7 13.h3 h6 14.Rfe1 Qd8 15.Bc3 Qc7 16.Qb2 Rab8; 11...g6 12.Nbd2 Bb7 13.h3 Rfd8 14.Rfe1 Rac8 15.Rab1 Kg7 16.Ng5 h6; 11...Ra7 12.Nbd2 h6 13.h3 Bb7 14.Bc3 Rd8 15.Bb2 Rc8 16.Rfe1 Raa8) 12.Nbd2 h6 13.h3 Rfe8 14.Bc3 Qd8 15.Rfe1 Qc7 16.Qb2 Rab8; B3) 11.cd5 ed5 12.Nc3 g6 13.h3 Bb7 14.Rfe1 Rfe8 15.Qd3 Rad8 16.Rac1 Ne5; B4) 11.Re1 Bb7 (11...g6 12.Nc3 Bb7 13.h3 Rac8 14.d3 Ne5 15.Ne5 Be5 16.f4 Bd6; 11...Re8 12.Nc3 Bb7 13.Qd3 h6 14.h3 dc4 15.Qc4 Bf3 16.Bf3 Ne5; 11...h6 12.Nc3 Bb7 13.cd5 ed5 14.Nh4 Ne5 15.Nf5 Qe6 16.d4 Nc4; 11...Rd8 12.Nc3 Bb7 13.cd5 ed5 14.Nh4 g6 15.f4 Re8 16.Nf3 Rac8) 12.cd5 ed5 13.Nc3 g6 14.Rac1 Rfe8 15.Qd3 Rad8 16.g3 Ra8; B5) 11.Qd3 e5 12.Qc2 e4 13.Nh4 g6 14.g3 Bb7 15.Nc3 d4 16.Nd5 Nd5; B6) 11.g3 Bb7 (11...g6 12.d3 Bb7 13.Nbd2 Rfe8 14.Bc3 Red8 15.Rab1 Re8 16.Ra1 Rad8; 11...Rd8 12.Nc3 Bb7 13.cd5 ed5 14.Rfd1 g6 15.Ba3 Re8 16.d4 c4; 11...Re8 12.Qd3 Bb7 13.Nc3 g6 14.Ra2 Red8 15.cd5 ed5 16.Raa1 h6) 12.cd5 ed5 13.Nc3 g6 14.Rfd1 Rfe8 15.Rab1 Rac8 16.d4 c4.

10.Nc3 b6 A) 11.Qc2 Bb7 (11...g6 12.cd5 ed5 13.Rfe1 Bb7 14.g3 Rac8 15.Qd3 Rfe8 16.Rac1 Ra8) 12.cd5 ed5 13.h3 Rfe8 14.Rfd1 g6 15.Kh1 Ne5 16.d4 Nf3; B) 11.cd5 ed5 12.Qb3 Bb7 13.g3 h6 14.Qc2 Qe6 15.d4 c4 16.Nh4 Bb4; C) 11.h3 Bb7 (11...h6 12.d4 Bb7 13.cd5 ed5 14.dc5 Nc5 15.Rc1 Rac8 16.Nd4 Qd7) 12.cd5 ed5 13.Qc2 Rfe8 14.Qf5 Qe6 15.Qe6 fe6 16.g4 h6; D) 11.g3 Bb7 (11...g6 12.d4 Bb7 13.cd5 Nd5 14.Qd2 c4 15.Ne4 Bb4 16.Qc2 c3; 11...h6 12.cd5 ed5 13.Qc2 Bb7 14.Nh4 g6 15.Rfe1 Rad8 16.f4 Rfe8; 11...dc4 12.Bc4 Bb7 13.Be2 h6 14.Qc2 Ne5 15.Ne5 Be5 16.f4 Bc7) 12.cd5 ed5 13.Qc2 g6 14.Rfe1 Rac8 15.Qd3 Rfe8 16.Rac1 Ra8; E) 11.Bd3 dc4 (11...Bb7 12.h3 h5 13.Qe2 dc4 14.Bc4 Ne5 15.Ne5 Be5 16.d3 Rad8; 11...h6 12.h3 Bb7 13.Rc1 Rfd8 14.Re1 dc4 15.Bc4 Rac8 16.Qe2 Bf3; 11...g6 12.h3 Bb7 13.Kh1 e5 14.Be2 d4 15.ed4 cd4 16.Nd5 Nd5) 12.Bc4 Bb7 13.h3 Rac8 14.Qe2 h6 15.Rac1 Rfd8 16.Ba2 Bb8; F) 11.d4 dc4 (11...Bb7 12.cd5 ed5 13.dc5 Nc5 14.Rc1 Rfc8 15.Nd4 Qd7 16.Qc2 g6) 12.Bc4 Bb7 13.Rb1 cd4 14.Qd4 Bf3 15.gf3 Rac8 16.f4 e5.

10.Nc3 Nb6 11.d3 (11.Qb3 dc4 (11...Nc4 12.Bc4 dc4 13.Qc4 b6 14.Ng5 h6 15.Nge4 Bb7 16.f4 Bc7) 12.Bc4 Nc4 13.Qc4 b6 14.Ng5 h6 15.Nge4 Bb7 16.f4 Bc7) 11...e5 (11...Bd7 12.h3 h6 13.Qb3 Qd8 14.Rfd1 Qc7 15.Rd2 Rfd8 16.Re1 Re8; 11...Rd8 12.Qb3 Qc7 13.h3 Bd7 14.Rfd1 h6 15.Rd2 Re8 16.Rc1 Ra7; 11...h6 12.Qb3 Rd8 13.h3 Qc7 14.Rfd1 Bd7 15.Rd2 Be8 16.Rc1 d4; 11...Qc7 12.Qb3 Rd8 13.h3 Bd7 14.Rad1 h6 15.Rfe1 Rf8 16.Rd2 Rfe8; 11...Re8 12.Qb3 Bd7 13.h3 Qd8 14.Rfe1 Qc7 15.Rad1 h6 16.Rd2 Red8; 11...g6 12.Qb3 Bd7 13.h3 Bc7 14.Rad1 Rfe8 15.Rfe1 Rf8 16.Rd2 Rfd8) 12.cd5 (12.Qb3 dc4 13.dc4 e4 14.Nd2 Rd8 15.Rfd1 h6 16.Nf1 Bg4) 12...Nfd5 (12...Nbd5 13.Ne4 Bc7 14.Qc1 b6 15.Qc4 Nb4 16.h3 Be6) 13.Ne4 Bc7 (13...f6 14.Nfd2 f5 15.Nd6 Qd6 16.Nc4 Qe6) 14.Rc1 Nd7 (14...Bf5 15.Nc5 Bd6 16.Ne4 Bc7) 15.Qb3 Nb4 16.b6 (better is 16.Nfg5!?+= h6; 16.h3 h6) 16...Bb6+= 17.g3 Kh8 18.Rc4 f5 19.Neg5 h6 20.Rh4 Nf6?? (better is 20...Rf6–/+) 21.Ne5+– (21.Be5?! Bd7=) 21...Qe8 22.Qc4 Nc6 23.Nef7 Rf7 24.Nf7 Kh7 25.Bf6 Be6 26.Ng5 Kg6 27.Bh5 Kf6 28.Qc3 Kg5 29.f4 1–0. usingprogram – shamy64, internet, 2011.

10.cd5 ed5 A) 11.d4 c4 (11...g6 12.dc5 Nc5 13.Qd4 Kg7 14.Nbd2 Rd8 15.Rac1 Nce4 16.h3 Bc5) 12.Nc3 b6 13.Qc2 Bb7 14.Nh4 g6 15.g3 Qe6 16.Ba3 Bb4; B) 11.h3 b6 (11...g6 12.d4 c4 13.Nc3 b6 14.Qc2 Bb7 15.Nd2 Qe6 16.Bf3 Rac8; 11...c4 12.Nc3 Nc5 13.Nd4 Bd7 14.f3 g6 15.Qc2 Ne6 16.Ne6 Be6; 11...Re8 12.d4 c4 13.Nbd2 b6 14.Qc2 Bb7 15.Bc3 Ne4 16.Ne4 Qe4; 11...Nb6 12.Qc2 d4 13.Na3 g6 14.Nc4 Bf5 15.Qb3 Bc7 16.Nb6 Bb6) 12.Nc3 Bb7 13.Qc2 g6 14.Rad1 Rfe8 15.Ra1 Ne5 16.Ne5 Be5; C) 11.Qc2 g6 (11...b6 12.Nc3 Bb7 13.Qf5 Rfe8 14.Bd3 g6 15.Qg5 Rac8 16.Rac1 c4; 11...Ne5 12.h3 g6 13.Be5 Be5 14.Ne5 Qe5 15.Nc3 Bf5 16.Bd3 Be4) 12.h3 b6 13.d4 Bb7 14.Nbd2 c4 15.Bc3 Rfe8 16.Ra2 h6; D) 11.Nc3 b6 (11...g6 12.h3 b6 13.Ba3 Bb7 14.d4 Rac8 15.Rc1 Rfe8 16.Ng5 h6) 12.Rc1 Bb7 13.Re1 h6 14.Qc2 Qe6 15.g3 Rfe8 16.Bf1 Ng4.

10.g3 A) 10...h6 A1) 11.Nc3 Nb6 (11...b6 12.Qc2 Bb7 13.cd5 ed5 14.Nh4 g6 15.f4 Rad8 16.Bf3 Rfe8; 11...dc4 12.Bc4 b6 13.Ne2 Bb7 14.Nf4 Ng4 15.Qe2 Nde5 16.Ne5 Ne5) 12.d3 e5 13.Qc2 d4 14.Ne4 Ne4 15.de4 Bh3 16.Rfe1 Rfd8; A2) 11.Qb3 b6 (11...dc4 12.Qc4 e5 13.d3 Nb6 14.Qh4 Bg4 15.Nbd2 Qe6 16.Rfc1 Rfe8; 11...Nb6 12.Na3 Bd7 13.Ne5 Be8 14.Rfe1 Nfd7 15.Nf3 f6 16.Nh4 g5) 12.Nc3 Bb7 13.Rac1 Rfd8 14.Rc2 Rac8 15.Re1 Rc7 16.Rcc1 Ne5; A3) 11.Bd3 e5 12.Nh4 Nb6 13.cd5 e4 14.Be2 Nbd5 15.Nc3 Bh3 16.Re1 Nb4; A4) 11.d4 b6 12.Qc2 Bb7 13.cd5 Nd5 14.Nc3 Nb4 15.Qd2 Rfd8 16.Rfd1 Nf6; A5) 11.Re1 b6 (11...Re8 12.Nc3 b6 13.Qc2 Bb7 14.cd5 ed5 15.Nh4 g6 16.f4 Rac8; 11...Rd8 12.Nc3 b6 13.Qc2 Bb7 14.cd5 ed5 15.Qf5 Qe6 16.Qe6 fe6) 12.cd5 ed5 13.Nc3 Bb7 14.Qc2 Qe6 15.d4 c4 16.Nh4 Bb4; A6) 11.Qc2 b6 (11...Re8 12.Nc3 Nb6 13.e4 Bc7 14.ed5 ed5 15.cd5 Bg4 16.Rfe1 Qd7; 11...Rd8 12.Nc3 Nb6 13.e4 Bc7 14.ed5 ed5 15.Rfe1 d4 16.Bd3 Be6) 12.Nc3 Bb7 13.cd5 ed5 14.Nh4 g6 15.f4 Rfe8 16.Rae1 Rac8; B) 10...g6 B1) 11.Nc3 dc4 (11...b6 12.d4 dc4 13.Nd2 cd4 14.ed4 Bb7 15.Nc4 Bb4 16.Rc1 Rac8) 12.Bc4 b6 13.Bd3 Bb7 14.Bc2 c4 15.Qe2 Rac8 16.Nd4 Rfd8; B2) 11.Qc2 b6 (11...Nb6 12.Ne5 Nfd7 13.Nd7 Bd7 14.Na3 h5 15.h4 e5 16.cd5 Nd5) 12.d3 Bb7 13.Nbd2 Ng4 14.h3 Ngf6 15.Bc3 Rfd8 16.Rfd1 Kg7; B3) 11.d4 b6 12.cd5 ed5 13.dc5 bc5 14.Nc3 Nb6 15.Re1 Re8 16.Qb3 Bf5; C) 10...b6 C1) 11.cd5 ed5 12.Nc3 Bb7 13.Re1 Rfe8 14.Qc2 g6 15.Qd3 Rad8 16.Rad1 Nf8; C2) 11.Nc3 Bb7 (11...g6 12.d4 Bb7 13.cd5 Nd5 14.Nd5 Bd5 15.Rc1 Nf6 16.Ne5 Ne4; 11...dc4 12.Bc4 Bb7 13.Qe2 Ng4 14.Bb3 Qf6 15.e4 g6 16.Rab1 Nge5) 12.Qb3 h6 13.cd5 ed5 14.Rfe1 Qe6 15.Qc2 Rfe8 16.d4 c4; C3) 11.Bd3 Bb7 (11...Ne4 12.Nc3 Bb7 13.cd5 ed5 14.Bc2 g6 15.Qe2 Ne5 16.Ne5 Be5; 11...Rd8 12.Nc3 Bb7 13.Qe2 dc4 14.Bc4 h6 15.Bb3 Bc7 16.Rac1 Rac8) 12.Nc3 Ne4 13.Re1 Ndf6 14.cd5 ed5 15.Qc2 Ng4 16.Rf1 h6; C4) 11.Re1 h6 (11...g6 12.Nc3 Bb7 13.Bd3 dc4 14.Bc4 Bf3 15.Qf3 Ne5 16.Qe2 Qb7; 11...Bb7 12.cd5 ed5 13.Nc3 g6 14.Qc2 Rfe8 15.Qd3 h6 16.Qb1 Qe6; 11...Rd8 12.Qc2 Bb7 13.cd5 ed5 14.Nc3 g6 15.Ng5 Re8 16.d4 h6; 11...Re8 12.Nc3 Bb7 13.Rc1 h6 14.d4 dc4 15.Bc4 cd4 16.ed4 Rac8) 12.Nc3 dc4 13.Bc4 Bb7 14.Be2 Rac8 15.d3 Ne5 16.Ne4 Ne4; C5) 11.Qb3 Bb7 (11...h6 12.Nc3 Bb7 13.Rfe1 Rfe8 14.Ra2 Red8 15.cd5 ed5 16.Raa1 Qe6; 11...g6 12.Qd3 Bb7 13.Nc3 Rad8 14.Rac1 Bc7 15.cd5 ed5 16.Qc2 Ne5; 11...Rd8 12.Nc3 Bb7 13.cd5 ed5 14.Qc2 Re8 15.d4 c4 16.Nd2 h5; 11...Re8 12.Nc3 Bb7 13.cd5 ed5 14.Qc2 g6 15.Rac1 Ne5 16.Ne5 Be5) 12.Nc3 h6 13.Rac1 Rfd8 14.Rc2 Ra7 15.Re1 Ne5 16.Ne5 Be5; C6) 11.Qc2 Bb7 (11...Re8 12.d4 Bb7 13.cd5 ed5 14.dc5 Nc5 15.Nc3 Rac8 16.Nd4 Qd7) 12.cd5 ed5 13.Nc3 g6 14.Rfe1 Rac8 15.Qd3 Rfe8 16.Rad1 Qf8.

10.h3 A) 10...g6 A1) 11.Qc2 Nb6 (11...b6 12.d3 Bb7 13.Nbd2 Rfe8 14.Rfe1 Rad8 15.Ng5 h6 16.Ngf3 Kg7; 11...Rd8 12.Nc3 b6 13.Bd3 Bb7 14.cd5 ed5 15.Be2 Rf8 16.d4 Rfe8; 11...h6 12.d3 b6 13.Nbd2 Bb7 14.Rfe1 Rfd8 15.Rac1 Kg7 16.Rb1 Rac8) 12.d3 e5 13.Nbd2 d4 14.Ng5 de3 15.fe3 Ng4 16.hg4 Qg5; A2) 11.Qb3 b6 (11...dc4 12.Qc4 b6 13.d3 Bb7 14.Nbd2 Rad8 15.Qh4 Nd5 16.Qh6 f6; 11...d4 12.ed4 cd4 13.Nd4 e5 14.Nf3 e4 15.Nd4 Bf4 16.Qa3 Qc5; 11...Rd8 12.Nc3 Nb6 13.d3 Bc7 14.Rad1 Bd7 15.Rd2 Rf8 16.Re1 Rfd8; 11...Nb6 12.d3 e5 13.Nbd2 Bf5 14.g4 dc4 15.dc4 Bd7 16.Qc3 Rfe8) 12.d3 Bb7 13.Nbd2 Rfe8 14.Rfd1 Rac8 15.Ra2 Qf8 16.Ng5 Qh6; B) 10...b6 B1) 11.cd5 ed5 12.Nc3 Bb7 13.d4 c4 14.Qc2 Rfe8 15.Nd2 Qe6 16.Rfb1 Bb4; B2) 11.Qc2 Bb7 12.cd5 ed5 13.Nc3 Rfe8 14.Qd3 Ne5 15.Ne5 Be5 16.Bf3 d4; B3) 11.Qb3 Bb7 (11...h6 12.d3 Bb7 13.Nbd2 Qd8 14.Rac1 Re8 15.Rfe1 Qc7 16.cd5 ed5; 11...Re8 12.d3 Bb7 13.Nbd2 h6 14.Bc3 e5 15.cd5 Nd5 16.Bb2 Qe6; 11...Rd8 12.d3 Bb7 13.Nbd2 h6 14.Qc2 Re8 15.Rfe1 Qd8 16.Bc3 Qc7; 11...dc4 12.Qc4 Bb7 13.Nc3 Rac8 14.Rab1 h6 15.Qh4 Rc7 16.Ra1 Rd8) 12.Nc3 h6 13.Rfe1 dc4 14.Qc4 Bf3 15.Bf3 Ne5 16.Qe2 Nf3; B4) 11.Bd3 Bb7 (11...h6 12.Nc3 Bb7 13.Qe2 dc4 14.Bc4 Rfd8 15.Bb3 Rac8 16.Bc2 Rc7; 11...g6 12.Nc3 Bb7 13.Re1 Rab8 14.Rb1 Rbd8 15.cd5 ed5 16.Be2 Ne5; 11...dc4 12.Bc4 Bb7 13.Nc3 h6 14.Qe2 Rac8 15.Bb3 Rfd8 16.Bc2 Rc7; 11...h5 12.Nc3 Bb7 13.Qe2 dc4 14.Bc4 Ne5 15.Ne5 Be5 16.Bd3 h4; 11...Re8 12.Qb3 Bb7 13.Rc1 e5 14.Nh4 g6 15.Na3 d4 16.Re1 Ne4) 12.Nc3 h6 13.Qe2 dc4 14.Bc4 Rfd8 15.Bb3 Bc7 16.Rad1 Ne5; B5) 11.Re1 Bb7 (11...Re8 12.Qb3 Bb7 13.Nc3 g6 14.Rac1 Rac8 15.Rc2 Ne5 16.Ne5 Be5; 11...g6 12.Nc3 Bb7 13.Bd3 Rab8 14.Rf1 e5 15.Bc2 e4 16.Nh2 d4; 11...h6 12.cd5 ed5 13.Nc3 Bb7 14.Qc2 Ne4 15.d3 Nef6 16.d4 Rac8; 11...Rd8 12.Qc2 Bb7 13.cd5 ed5 14.Nc3 g6 15.Ng5 h6 16.Nf3 Rac8) 12.cd5 ed5 13.Nc3 Rfe8 14.Qb1 g6 15.Qd3 Rad8 16.Rac1 Ne5; B6) 11.Nc3 Bb7 (11...dc4 12.Bc4 Bb7 13.Rc1 Rac8 14.Qe2 Bf3 15.Qf3 Ne5 16.Qe2 Qb7; 11...h6 12.Qc2 Bb7 13.cd5 ed5 14.Qf5 Rac8 15.Rfc1 g6 16.Qd3 Rfe8) 12.Bd3 h6 13.Qe2 dc4 14.Bc4 Rfd8 15.Bb3 Bc7 16.Bc2 Ne5.

10.Nc3 e4 11.Ne1 d4 12.Na2 (better is 12.Nb1!? d3 13.Bd3 ed3 14.Nd3–+) 12...d3 13.Bg4 Ng4 14.Qg4 f5 (14...Ne5 15.Qd1 (15.Qe4?? f5 16.Qd5 Be6 17.Be5 Bd5 18.Bd6 Qd6 19.cd5 Qd5–+) 15...Nc4 16.Qc1 Nb2 17.Qb2–+) 15.Qd1 (15.Qh5 Nb6–+) 15...Nb6 16.Rc1 (16.f4 Nc4 17.Bc3 Be6–+) 16...Be6 17.Nc3 Nc4 18.Ba1 Rf6 (18...Qh4 19.g3 Qh6 20.f3–+) 19.f3 Rh6 20.h3 Qh4 21.fe4 (21.Kh1 Qg3 22.f4 g5 23.Nd3 ed3–+) 21...fe4 22.Ne4 Qe4 23.Nf3 (23.Qf3 Qf3 24.Nf3 a6–+) 23…Bh3 (23...Bh3 24.Rc4 Qc4 25.gh3 Qe4–+) 0–1. Nicklich,Wolfgang – Olsson,Sture, corr 7375, 1975.

10.d3 Re8 11.Re1 (11.cd5 Nd5 12.Nbd2 a6=) 11...dc4 (11...d4 12.Nbd2=) 12.dc4 e4 13.Nfd2 Ne5 14.Nc3 Neg4 (14...Bf5 15.Qb1+=) 15.Nf1 Qc7 16.g3 (16.Bg4 Ng4 17.Ng3 Bg3 18.fg3 Ne5=) 16...Bf5 17.Nd5 Nd5 18.Bg4 Ne7 19.Bf5 Nf5 20.Qc2 (20.Qg4 Be5 21.Be5 Qe5+=) 20...Be5 21.Be5 Qe5 22.Rad1 Rad8 23.Rd8 Rd8 24.Rd1 (24.Nd2 Rd3+=) 24...Rd1 25.Qd1 Nd6 26.Qc2 (26.Nd2 h6+=) 26...f5 (26...b6 27.Nd2+=) 27.Nd2 g5 28.f3 (better is 28.Nb3!?+=) 28...ef3 29.Nf3 Qe3 30.Kg2 (better is 30.Qf2 Nc4 31.Qe3 Ne3 32.Ng5–+) 30...g4 31.Nh4 f4 (31...f4 32.Qd1 f3 33.Kf1 b6–+) 0–1. Lelgemann,Ludwig – Mueller,Erich, corr DDR–ch H145, 1973.

10.d4 cd4 11.ed4 e4 12.Nh4 (12.Nfd2 e3 13.c5 Bc7=) 12...Qe6= 13.f4 (13.c5 Bc7 14.Qd2 Ng4+=) 13...b6 (13...dc4 14.Nd2–/+) 14.cd5 (14.Nc3 Re8+=) 14...Nd5 (14...Qd5?! 15.Nc3 Qe6 16.d5=) 15.Bc4 f5 (15...Bb7 16.Qb3+=) 16.Nc3 (16.Ba3 Ba3 17.Ra3 Bb7+=) 16...Bb7 17.Qb3 N7f6 18.g4 (18.a5 ba5 19.Ra5 Rfc8+=) 18...fg4 19.f5 (19.Ng2!? Rac8 20.Rae1+=) 19...Qf7–/+ 20.Ng2 Rad8 (20...Rac8!? 21.Ne3 Rc4 22.Nc4 Ne3–+) 21.Ne3+= Bb8 (21...Ne3 A pinning theme 22.Bf7) 22.Rae1 (22.Ned5 Nd5 23.Ba3–/+) 22...Rfe8 (22...Kh8!? 23.Ncd5 Bd5 24.Nd5 Nd5+=) 23.Ncd5 Nd5 (23...Bd5 24.Nd5 Rd5 25.Bc1+=) 24.Ng4 (24.f6 Rd7 (worse is 24...gf6 25.Rf5+–) 25.Rf5 Red8 26.fg7 Qe6+/–) 24...Qh5 25.Ne5 Rf8 The isolani on f5 becomes a target (25...Kh8 26.Qg3 (worse is 26.Re4 Be5 27.de5 Nc3 28.Qc3 Be4–/+) 26...Rf8 27.Re4 Rf5 28.Rh4 Rf1 29.Bf1+/–) 26.Re4 (26.Qd1 Qg5 27.Qg4 Qg4 28.Ng4 Rfe8+/–) 26...Rf5+= 27.Rf5 Qf5 28.Re2 (better is 28.Qf3 Qf3 29.Nf3+=) 28...Qb1–/+ 29.Kg2 Be5 30.de5?? (better is 30.Re5 Kh8 31.Kf2–/+) 30...Kh8–+ 31.Kg3 Rf8 32.Bd5 (32.h4 Nf4 33.Kf2 Ne2 34.Bf7–+) 32...Qg6 33.Kh3 Rf4 (33...Rf4 34.Qg3 Qh5 35.Kg2 Qe2 36.Kh3 Qh5 37.Kg2 Bd5 38.Qf3 Qf3 39.Kg1 Qe3#) 0–1. Haapala,Teuvo – Lahjo,Kyosti, corr FIN–ch ME, 1970.

11.dc4 Rd8 12.Nc3 =.

11.dc4 e4 12.Nfd2 =+.

11.Nfd2 ed3 12.Bd3 +=.

11.Ne1 ed3 12.Bd3 dc4 13.Bc4 Ne5.

11.Ne1 Ne5 12.cd5= Neg4 (12...ed3 13.Bd3 Nfg4 14.h3 Nd3 15.Nd3+= (worse is 15.Qd3 Nh2–/+)) 13.g3+= h5 (13...Ne5 14.de4 Ne4 15.Nd2+=) 14.Ng2 (14.de4 Ne4 15.Nd2 Nd2 16.Qd2 h4+/–) 14...Nd5 (14...Be5 15.Be5 Qe5 16.Nd2 ed3 17.Bd3 Nd5 18.Nc4+=) 15.de4+/– Nb4 (15...Qe4? 16.Bf3 Nde3 17.Be4 Nd1 18.Rd1+–) 16.Nc3 Rd8 17.Qc1 b6 (17...Be6 18.a5+=) 18.f4 (18.Rd1 a6+/–) 18...Bb7 (18...Be6 19.h3 Nh6 20.Kh2+/–) 19.e5 Bg2 (better is 19...Bc7!?+/–) 20.Kg2+– (20.ed6?! Rd6 21.Kg2 Ne3 22.Kh1 Nf1 23.Qf1 Rd2+=) 20...Bc7 21.h3 (21.e4 Qe6+–) 21...Ne5 (21...Nh6 22.e4+–) 22.fe5 Qe5 23.Rf3 h4 (23...Nd3 24.Qc2 Nb2 25.Qb2+–) 24.Bc4 Rd7 (24...Nd3 25.Qc2 Nb2 26.Qb2+–) 25.Ne2 (25.Nd5! Qe4 26.Nc7 Rc7+–) 25...Qg5 26.Qc3 Nd5 27.Qb3 Nf6? (27...Re8 28.Nf4 Bf4 29.ef4 Qf5+–) 28.Bf6 gf6 29.Raf1 Be5 30.g4 (30.Rd1 Rad8 31.Bf7 Kh8 32.Rd7 Rd7+–) 30...Rad8 31.Rf5 Qg6 (31...Qg7+–) 32.Rh5 (better is 32.Nf4 Rd2 33.Kg1 Bf4 34.R5f4+–) 32...Qe4 33.Rf3 (33.Kg1 Rd2+–) 33...Rd2+/– 34.g5?? (34.Re5 fe5 35.Kf2+=) 34...R8d7–+ 35.Kf2 Rb2 36.Bf7 (36.Qb2 Bb2 37.gf6 Bf6 38.Rf4–/+) 36...Rf7 37.Qd1 Bg3 38.Kg2 Rd7!! 39.gf6 Qf3!! (39...Qf3 40.Kf3 Rd1 41.Ng3 hg3 42.Kg3 Re1–+; 39...Rd1 40.f7 Kf8 41.Rh8 Ke7 42.f8Q Ke6 43.Qf7 Ke5 44.Re8 Kd6 45.Rd8 Ke5 46.Qe7#) 0–1. Bender – Schroder, corr JBDDR'2890, 1981.

11.de4 de4 12.Nfd2 Rd8 13.a5 =+.

11.de4 de4 12.Nfd2 Ne5 13.Nc3 Neg4 14.g3 Rd8 15.Nce4?? (better is 15.Qc2 Re8 16.Nd5 Nd5 17.cd5=) 15...Ne4–+ 16.Bg4 (16.Ne4 Qe4 17.Bd3 Qe6–+) 16...Nd2 17.Qd2 Bg4 18.Qc2 Qe6 19.Rac1 (19.e4 Be5 20.Be5 Qe5–+) 19...Be5 (better is 19...Bf3 20.Qc3 f6–+) 20.Ba1 (20.f3 Bb2 21.Qb2 Qe3 22.Qf2 Qf2 23.Rf2–+) 20...Ba1 (better is 20...Bf3 21.Qe4 Be4 22.f3–+) 21.Ra1 (21.Qb3 Bf6 22.f3–+) 21...Bf3 22.Qc3 Qh3 0–1. Valpa – Aligatorix, playchess.de, 2002.

11.de4 de4 12.Nfd2 Ne5 13.Nc3= Neg4 14.h3 Qe5 15.g3 (15.f4 ef3 16.Nf3 Qe3 17.Kh1 Be5 18.Ne5 Ne5=+) 15...Nf2 16.Rf2 (16.Kf2 Qg3) 16...Qg3 17.Rg2 Qe3 18.Kh1 Qh3 19.Kg1 Be5 20.Qc2 (20.Nf3 ef3 21.Bf3 Bd4 22.Kf1–+) 20…Bd4 (21.Rf2 Qg3 22.Kh1 Qf2–+) 0–1. Mostowik – Furlepa, corr 1. AMM Poland, 1991.

11.de4 Qe4 12.Nc3 Qg6 13.Nd5 Nd5 14.cd5 +/–.

11.de4 Qe4 12.Nc3 Qg6 13.Nd5 Nd5 14.Qd5 +/–.

11.d3 Rd8 12.Nc3 Nb4 13.Nd2 Nf6 14.Nc4 Bb8 Black prepares the advance e4 15.Bf3? (15.Qb1 Bf5 16.Ne4 Ne4 17.de4 Bg6=) 15...e4 (better 15...Bf5!? 16.e4 Be6-/+) 16.Ne4=+ Ne4 17.Be4 Be6 (17...f5 18.Bf3 Be6 19.Qe1=+) 18.Qf3 (better 18.Na5 Nd3 19.Bd3+/-) 18...Bc4?? (better 18...Nd3 19.Bd3 Rd3=+) 19.dc4+- Qc7? (better 19...Nd3 20.Bb7 Bh2 21.Kh2 Rab8 22.Bg7 Kg7 23.Qg4 Kh8+-) 20.g3 Nd3 (20...a6 21.Qf5 (21.Bb7?! Ra7 22.Be4 Nd3+-) 21...Kf8 22.Qh7+-) 21.Bc3 Qe7 22.Bb7 Ne5 (22...Be5 23.Ba8 Bc3+-) 23.Be5 (23.Ba8?! Nf3 24.Bf3 Bd6+-) 23...Be5 24.Ba8 Ba1 25.Ra1 Qe8 26.Bd5 Qe5 (26...h6 27.Rd1 Rd7 28.a5+-) 27.Qf7 Kh8 28.Rf1 (28.Rd1 Qb8+-) 28...h6 (28...Qb8 29.Rd1 a5 30.ba6+-) 29.a5 1-0. BeepBeepImAJeep (2575) - andreigronivo (1925), lichess.org, 2017.

11.d3 Rd8 12.Nbd2 =.

11.d3 N7f6 12.Nbd2.

11.d3 Kh8 12.Nbd2 a6 13.Qb3 N5f6 14.Nc4 +=.

11.d3 Kh8 12.Nbd2 Bc7 13.a5 f5 (13...Rd8 14.Qc2+=) 14.Nc4 N5f6 (14...Qe6 15.Qd2+=) 15.b6 (15.Qc2 Nd5+=) 15...ab6 16.ab6 Ra1 17.Qa1 Nb6 18.Nb6 Bb6 19.Be5 Nd5 (19...Be6 20.Rb1 Nd7 21.Bf4+=) 20.g3 (20.Qb2 Bc7+=) 20...Be6= 21.Rc1 (21.Qb2 Nb4=) 21...Nb4 (21...Rd8 22.d4=) 22.d4 cd4 (22...Na2 23.Rd1 Nb4 24.Qa4=) 23.Bd4+= Bd4 24.Qd4 (24.Nd4 Bd5+=) 24...Nc6 25.Qc5 (25.Qf4 Qf6=) 25...Rc8 (25...Qc5 26.Rc5 h6 27.Ne5 Ne5 28.Re5=) 26.Qb6 (26.Qe7 Ne7 27.Rc8 Nc8=) 26...Qc7 (26...Bd5!?=) 27.Qc7+= Rc7 28.Nd4 Bc8 29.Nb5 (29.Bf3 g5+/–) 29...Rd7+= 30.Bf3 Rd8 31.Bc6 (31.Rc5 g5+=) 31...bc6 32.Nd4 (32.Rc6? Rd1 33.Kg2 Bb7–+) 32...Bd7 33.Nb3 (33.h3 Rb8+=) 33...Be6= 34.Nd4 Bd7 35.Rc5 (35.Kf1 Ra8+=) 35...g6 36.Ra5 (36.h3 Rb8+=) 36...Kg8 (36...Rc8 37.Ra7 Be8 38.Kf1=) 37.f4 (37.h3 Kf8=) 37...Kf7 (37...Rc8 38.Ra7 Be8 39.Kf1=) 38.Ra7 Ke8 39.Nf3 (39.Nb3 Be6 40.Nc5 Bc4=) 39...Ke7 40.Ne5 Ke8 (better is 40...Ke6!?=) 41.Rc7+/– (worse is 41.Nd7 Rd7 42.Ra4 Rd1 43.Kg2 Rd2 44.Kh3 h6+=) 41...Ke7 42.Rc6 (worse is 42.Nd7 Kd6 43.Nf8 Kc7 (worse is 43...Rf8 44.Rh7 c5 45.Rg7=) 44.Ne6 Kd7 45.Nd8 Kd8+=; 42.Nc6?! Kd6 43.Nd8 Kc7+/–) 42...Rc8 43.Ra6 (43.Rb6 Rc7+/–) 43...Rc7 44.h3 Be6 (44...Bc8 45.Rb6+/–) 45.g4 fg4 (45...Bc8!? 46.Ra2 Bb7+/–) 46.hg4+– Bd5 (46...Bc8 47.Ra4+–) 47.f5 (47.g5 Rb7+–) 47...gf5+/– 48.gf5 Bb7? (better is 48...Ke8 49.f6 h5+–) 49.f6+– Kf8 50.Rd6 Rc8 (50...Ke8 51.f7 Ke7 52.Re6 Ke6 53.f8Q Rc1 54.Kf2+–) 51.Rd7 Be4 (51...Bc6 52.Rh7 Bd5+–) 52.Rf7 Kg8 53.Rg7 (53.Rg7 Kf8 54.Nd7 Ke8 55.f7 Kd7 56.f8Q Kc6 57.Qc8 Kb5 58.Qe8 Kb6 59.Qe4 Kc5 60.Rc7 Kb6 61.Qc6 Ka5 62.Rb7 h5 63.Qb5#) 1–0. Sokolski,Alexey – Szukszta, Polanica Zdroj Poland, 1958.

11.d3 Kh8 12.Nbd2 f5 13.Nb3 N7f6 14.d4 ed4 15.ed4 Bd7 16.Rc1 Rfc8 (16...cd4 17.Bd4 Rfe8 18.Re1+=) 17.Rc2 (better is 17.dc5 Bc5 18.Bc4+/–) 17...Nb4= 18.Rc3 cd4 19.Nfd4 Nfd5 20.Rc8 Rc8 21.Bf3 Kg8 22.Re1 Be5?? (better is 22...Qf7+=) 23.Nf5!!+– Bf5 24.Bd5 (24.Be5?! Qf7 25.Qd4 Re8+–) 24...Nd5 25.Qd5 (25.Be5?! Rd8+/–; 25.Re5 Be6 26.Qd5 Bd5 27.Re7 Rc2 28.Rg7 Kf8+–) 25...Qe6 26.Qe5 Qe5 27.Re5 1–0. Bonetti,Shane – Kibitz No 3, 2000.

11.d4 e4 12.Nfd2 N7f6 13.Qc2 Bf5 14.f3 ef3 15.Qf5 fe2 16.Re1 Qe3 17.Kh1 g6 18.Qc2 Ng4 19.h3 Nf2 20.Kg1 Nh3 21.Kh1 Qg1 22.Rg1 Nf2 0-1. RichardSommer (2145) - papitafrita17 (2185), lichess.org, 2020.

11.Ng5 Nd5 –/+.

12.d3 ed3 13.Bd3. Hasler – Hopfgarten, corr ICCF WC VIII/IX 1991.

12.d4 Qh4 13.h3 N7f6 14.dc5 Bc5 15.Nd2 =+.

12.f4 ef3 13.Nf3= N7f6 14.Na3 Bf5 =.

12.f4 ef3 13.Nf3= N7f6 14.Bc4 Be6 15.Qb3 Rad8 16.Be5 (16.a5 Nb4=) 16...Be5=+ 17.Ne5 Qd6 18.Nf3 h6 19.Nc3 (19.a5 Rfe8=) 19...Nc3 20.Qc3 Ne4 21.Qc2 (21.Qc1 Bc4 22.Qc4 Qd3=+) 21...Bc4 (21...Nd2!? 22.Nd2 Qd2 23.Qd2 Rd2–/+) 22.Qc4=+ Nd2 (22...Qd3 23.Qc1=+) 23.Nd2= Qd2 24.Qc5 b6 25.Qc1 Qc1 (25...Rfe8 26.Rd1 Qe2 27.Rd8 Rd8 28.Qc3=+) 26.Rac1 Rd7 27.Rf4 (27.Rfd1 Re7=) 27...Re8 (27...Rfd8 28.Kf2=) 28.Kf2 g5 29.Rfc4 Kg7 30.h3 Kg6 31.g4 Rd2=+ 32.Kf3 Rh2 33.Kg3 Re2 34.Rc6 f6 35.R1c3 R8e3–/+ 36.Re3 Re3 37.Kg2 Ra3 38.Rc4 h5 (39.Rd4 Ra2 40.Kf1 h4–/+) 0–1. Roczniak,Jan – Galczynski,Czeslaw, corr Poland (year?).

12.f4 N7f6 13.Nc2 Bc7 14.Nc3 Rd8 15.Nd5 Nd5 16.a5 Qe8 (16...Nf6 17.Qe1=+) 17.Bc4= b6 (17...Qe6!?=) 18.Qh5+= Be6? (18...Ne7 19.ab6 Bb6 20.Qe5+=) 19.ab6 (19.f5 Bc8 20.Bg7 Qe7+–) 19...Bb6? (better is 19...Nb6 20.Be6 Qe6 21.Qc5 Bd6+/–) 20.f5+– Bc8 21.Bg7! Nb4 (21...Kg7 22.Bd5) 22.Qg4 h5 (22...Bf5 23.Rf5 Qe6 24.Be6 h6 25.Bf7 Kh7 26.Qg6) 23.Qh5 Kg7 24.f6 Kg8 25.Qg6 Kh8 26.Qg7# 1–0. Fischer,Detlev – Axmann,Stefan, corr private, 1985.

12.f4 N7f6 13.Nc2 Rd8 14.a5 =+.

12.f4 N7f6 13.Nc3 Rd8 =+.

13.Bd3 (13...Nb4 14.Nf3=+) =+. Hasler,Ulrich – Hopfgarten, corr ICCF–WC VI, 1991.

13.Nd3 N7b6 =.

13.Nd3 c4 14.Ne1 Qh4 15.Nf3 +/–.

14.Nd2 Bb7 15.Qc2 Rfd8 =.

14.Nd2 Bb7 15.Bf3 Rad8 16.a5 Bb8 =.

14.Nd2 Bb7 15.Bf3 Rad8 16.Qb3 N7f6 17.Nc4 (17.a5 ba5 18.Ra5 Bb8+/–) 17...Ne4 (17...Nb4 18.Be2=) 18.Rad1 (18.a5 Ng5 19.Be2 Qe4+=) 18...Bb8 19.Be5 Be5 20.Nde5 Nb4 (20...Ng5 21.Bg4=) 21.Be4 (21.Rd8 Rd8 (< 21...Qd8 22.Rd1 Qh4 23.g3+/–) 22.Rd1 Rd1 23.Qd1 Nc3=) 21...Be4 22.Rd8 Rd8 23.f4 (23.Qc3!?=+) 23...Bc2–/+ 24.Qa3 f6 25.Nc6 Nc6 26.bc6 Rd3 27.Qc1 Bb3 28.Re1 Kf8 29.Kf2 Qc7 30.Nb2 Rd6 31.Qc3 Bd5 32.Qc2 g6 33.Rd1 Bc6 34.Qc3 Ke7 35.Qc4 Qd7 36.Ke1 Qe6 37.Rd6 Kd6 38.Qe2 Qe4 39.Kf1 Ba4 40.Na4 Qa4 41.Qd3 Ke7 42.Qd5 Qa6 43.Ke1 Qc8 44.e4 c4 45.e5 fe5 46.fe5 Qc7 47.g3 c3 48.Qg8 Qe5 49.Kd1 Qd4 50.Kc2 Kd6 51.Qh7 Kc5 52.Qe7 Kb5 53.Qg5 Ka4 54.Qf4 Qb4 55.Qf7 Qb2 56.Kd3 a5 57.Qc4 Ka3 58.h4 Qd2 59.Ke4 c2 60.Qc7 c1Q (61.Qc1 Qc1–+) 0–1. Gerold,G – Timmerman,AC, corr ICCF EU/M/GT/069 (year?).

14.Nd2 Rd8 15.Nc4 =.

14.Bf3 Bb7 =.

14.Nc3 Nc3 15.Bc3 Nb6 16.a5 =+.

14.Nc3 N7f6 15.Nd5 Nd5 16.Bf3 Be6 =.

14.Nc3 N7f6 15.Bf3 Nc3 16.Bc3 Bf5 17.Nb2 =+.

14.Nc3 N7f6 15.Bf3 Be6 16.Nd5 Nd5 17.e4 Nb4 18.Nb4 cb4 =.

14.Nc3 N7f6 15.Bf3 Be6 16.e4 Nc3=+ 17.Bc3 Ne4?? (better is 17...Rad8 18.e5 Be5 19.Be5 c4=+) 18.Be4+– Qh4 (18...c4 19.Ne5 f6 20.Nf3+–) 19.f4 (19...Re7 20.Ne5+–) 1–0. Nicklich,Wolfgang – Olsson,Sture, corr, 1977.

14.Nd2 a6 =.

14.Nd2 Qh4 15.g3 Qe7 16.Bf3 +=.

15.Nc4 Bc7 16.a5 Bf5 17.Qb3 Rad8 18.Rfd1 =.

15.Nc4 Bc7 16.a5 Bf5 17.Qb3 Be6 18.Qa3 Nd7 19.Rfc1 (19.Rac1 Qh4 20.f4 N5f6 21.Nc5 Bc4 22.Bc4 Bd6 23.Bf7 Kf7 24.Qb3 Kf8 25.Ne6 Re6 26.Qe6 Bb4+–) 19...Rac8 (19...Rad8 20.Bf3=) 20.Nce5 (20.Bf3 Red8=) 20...Bd6 (20...Ne5 21.Be5 Be5 22.Ne5 Nb4=) 21.Nd7 (21.Qa4!?=) 21...c4 (21...Bd7 22.Ne1 c4 23.Qa4–/+) 22.Nf6? (22.Qa4 cd3 23.Qd4–/+) 22…Nf6–+ (23.Bf6 Ba3 (23...cd3?! 24.Be7 Ba3 25.Ba3 de2 26.Bb2–/+) 24.Be7 Bc1 (24...Be7?! 25.Nf4=; 24...cd3?! 25.Ba3 de2 26.Bb4–/+) 25.Nc1 Re7–+) 0–1. Nicklich,Wolfgang – Olsson,Sture, corr, 1977.

15.Nc4 Bc7 16.a5 Bf5 17.Qb3 Be6 18.Nc5 Qc5 19.Ba3 Bh2 20.Kh2 Qc7 21.Kg1 Ne4 =.

15.Re1 Be6 16.e4 c4?? 17.ed5+– (17.Nc4?! Ne4 18.Nd6 Qd6+=) 17...cd3 18.Bf3 (18.de6?! de2 19.Re2 fe6+=) 18...Nd5 19.Bd5 Bh2 20.Kh2 Qh4 21.Kg1 Bd5 22.Nf3 Bf3 (22...Qb4 23.Rb1+/–) 23.Qf3 (< 23.gf3 Re1 24.Qe1 Qg5 25.Kh1 Rd8=) 23...Qb4 (23...Re1 24.Re1 Qb4 25.Rb1+/–) 24.Be5 f6 25.Reb1 (25...Qe7 26.Bc3+/–) 1–0. Friberger,Torbjoern – Oestblom,Stig, corr SSKK 2–738, 1990.

15.Re1 Be6 16.e4 Nf4 =.

16.Qb3 Rac8 17.Nc4 Qc7 18.h3 Be6 =.

16.Qb3 Rac8 17.Ne1 Red8 18.Rd1 =+.

16.Qb3 Rac8 17.Ne1 Be6 18.Nef3 Nf4 (18...Rcd8 19.Nc4=) 19.Bc4= Ne2? (better is 19...Bc4 20.Nc4 N4d5=) 20.Kh1+– Bc4 21.Nc4 Qe6 22.Ncd2?? c4 23.Qc2? c3–+ 24.Ba3 cd2 25.Qd2 Ba3 26.Ra3 (26.Qe2 Bd6–+) 0–1. Nicklich,Wolfgang – Olsson,Sture, corr, 1970.

16.Qb3 Ne3 17.Bf6 gf6 18.Rfe1 =+.

16.Nc4 Nb4 17.Qc3 Nd3 18.Bd3 Bd3 19.Qd3 Rad8 =.

14.Na3 Qc7 15.Rc1 Bh2 16.Kh1 =+.

14.Na3 Ne4 15.Qc1 b6 16.Nc4 Bc7 17.f3 Nd6 18.Nce5 Bb7 19.e4 Nf6 20.Qc3 Rad8 21.Ng4 Nde8 22.Nf6 Nf6 23.Nf2 (23.a5!?+=) 23...Rd4 24.Qe3 Nd5 25.Qc1 Bf4 26.Qb1 Rb4 (26...Rd2 27.Re1=+) 27.Nd3= Qh4 28.Nf4 Nf4 29.Qc2 (29.Re1 Qg5 30.Bf1 Rd8–/+) 29...Qg5 30.g3 h5 (30...Ne2 31.Qe2 Rd8 32.Rfd1=) 31.Bc3 (31.a5 Ne2 32.Qe2 a6=) 31...h4= 32.g4 (32.Bb4 cb4 33.Kf2 Nh3 34.Ke1 hg3 35.hg3 Rd8–+) 32...Ne2 33.Qe2 Rb3 34.Rac1 Bc8 35.h3 Qf4 36.Qg2?? (better is 36.Rfd1=) 36...Qe3–+ 37.Qf2 Rc3 38.Rc3 Qc3 39.Qh4 Be6 40.Qg5 (40.Qe1 Qd4 41.Qf2 Qa4–+) 40…Qd4 (41.Kg2 Qa4–+) 0–1. Wolfram,R – Secula,V, corr SOK–89–49, 1989.

14.Na3 Ne4 15.Qc1 Qh4 16.Ne5 =.

14.Na3 Bf5 15.Nc4= Bc7 16.a5!? =.

14.Na3 Bf5 15.Nc4= Bc7 16.Nc5? Qc5–/+ 17.Ba3 Nb4 18.Qb3 Nfd5 19.Bf3 (19.Rfb1 Bh2 20.Kh2 Qc7 21.Kg1=) 19...Be6 (19...Bh2 20.Kh2 Bc2 21.Bb4 Nb4 22.Qc3–/+) 20.e4? (better is 20.Rfc1!? Rfc8 21.Rab1=) 20...Nb6 (20...Nf4 21.Bb4 Qc4 22.Qc4 Bc4 23.Rfc1–/+) 21.Qb4 Qb4 22.Bb4 Bc4 23.Rfc1 Rfc8 24.a5 Bf4 25.Rd1–/+ Be5 26.Ra3 Bb2 27.Re3 Na4 28.Rd7? Nc5 29.Bc5 Rc5 30.Rb7 Bd5! (31.Re1 Bb7–+) 0–1. Heyn,Richard – Rohde Jensen,Kristian, corr, 1967.

14.Na3 Bf5 15.Nc4= Rfd8 =.

14.Nc3 b6 15.Nd5 Nd5 16.Bf3 Bb7 =.

14.Nc3 b6 15.Bf3 Bb7 16.Nd5 Nd5 17.a5 Rad8 18.a6 Ba8 =.

14.Nc3 b6 15.Bf3 Bb7 16.Nd5 Nd5 17.e4 Nf4 18.e5 (18.Nf4!? Bf4 19.Qc2=) 18...Bf3=+ 19.Qf3 Nd3 20.Qd3 Be5 21.Rfe1 (better is 21.Be5 Qe5 22.Rfe1=+) 21...f6?? (better is 21...Qd6 22.Qd6 Bd6–/+) 22.f4+/– Bb2 (22...Bf4 23.Re7) 23.Re7 Ba1 24.Qd5 Kh8 25.f5 (25.Kf1 h6+/–) 25...Rad8 26.Rd7 Rd7 27.Qd7 c4 28.Qa7+– Bd4 29.Kf1 c3 30.Ke2 c2 31.Qc7 Be5 32.Qc2 Bh2 33.Qd2 Be5 34.a5 ba5 35.Qa5 Re8 36.Kf3 h5 37.Qa7 Kg8 38.Qd7 Kf8 39.Ke4?? Re7?? 40.Qc8 Re8 41.Qc6 Rd8 42.b6 Kg8 43.b7 Rd4 44.Ke3 Rb4 45.Qe8 Kh7 46.Qh5 Kg8 47.Qe8 Kh7 48.Qf7 Rf4 49.g4 (49...Rb4 50.g5 Bf4 51.Kf3 fg5 52.f6 g4 53.Kg4 Be5 54.Kf5 Bf6 55.Qg6 Kg8 56.Qe8 Kh7 57.b8Q Rb8 58.Qb8 Bd4 59.Qh2 Kg8 60.Kg6 Be5 61.Qa2 Kh8 62.Qa8 Bb8 63.Qb8#) 1–0. Hoffmann,B – Lukas,Martin, corr FRG–ch09 sf03, 1975.

14.Nc3 b6 15.Bf3 Nc3 16.Bc3 Ne4 17.Qc2 =.

14.Nd2 Rd8 15.Nc4 =.

14.Nd2 Re8 15.Nc4 Bc7 =.

14.Nd2 Re8 15.Bf3 Bf5 16.e4 Ne4 17.Re1!? Ndc3 18.Qc2 =.

14.Nd2 Re8 15.Bf3 Bf5 16.e4 Ne4 17.Be4? Be4–/+ 18.Re1 (18.Ne4 Qe4 19.Re1 Qf5–/+) 18...f5 (18...Bh2!? 19.Kh2 Qh4 20.Kg1 Bd3 21.Qf3–/+) 19.Nc4 Bc7?? (better is 19...Bf4–/+) 20.f3+= Bh2 21.Kh2 Qh4 22.Kg1 Bd3 23.Re8 Re8 24.Qd3 Nf4 25.Qb3 (25.Qd6 Ne2 26.Kf1 Ng3 27.Qg3 Qg3 28.Rc1–+) 25...Ne2= 26.Kf1 Ng3 27.Kg1 Qh1 28.Kf2 Re2 29.Kg3 Qg2 30.Kf4 Qh2 (31.Kf5 Qh5 32.Kf4 Qh4 33.Kf5 g6#) 0–1. Junge – Nicklich,Wolfgang, corr DDR–ch H, 1978.

14.Bf3 Rd8 15.Nd2 =+.

15.Bc3 Ne4 16.Rc1 =+.

15.Bc3 Bf5 16.Rc1 Nd5 =.

15.Bc3 Bf5 16.Bf3 Rad8 17.Be2? c4–+ ½–½. Gabor,Klaus – Rohde Jensen,Kristian, corr, 1967.

15.Bc3 Bf5 16.Bf3 Rad8 17.Bf6 Qf6 18.e4 –/+.

15.Bc3 Bf5 16.Bf3 Rfd8 17.Bf6 Qf6 18.e4 –/+.

15.e4!? c4 16.ed5 Bh2 17.Kh1 cd3 18.Bd3 +=.

15.h3 c4 16.Rc1 cd3 17.Rc7 de2 18.Qe2 Bc7 (18...Nc7?! 19.Bf6 gf6 20.Qf3=) 19.Rc1 Bd6 (19...Be6 20.e4 Nf4 21.Qe3–/+) 20.e4+= Nf4 21.Qf3 Ng6 22.Nc4 Be7 23.Bf6 (23.e5 Nd7+=) 23...gf6 (23...Bf6 24.Qe3–/+) 24.a5 (24.Ne3!? Be6 25.Nf5=) 24...Be6–/+ 25.Ne3 Rfc8 26.Rd1 Rc5 (26...Rc3 27.e5 fe5 28.Qb7–/+) 27.Nd5 The isolani on f6 becomes a target 27...Bd8 (better is 27...Bd5 28.Rd5 Rac8–/+) 28.Nf4?? (better is 28.Nf6 Kh8 29.Nd5=) 28...Nf4–+ 29.Qf4 Rb5 (29...Ba5 30.Qf6 Bc3 31.Qh4–/+) 30.Ra1 (30.Qg3 Rg5 31.Qf3 Rc8–+) 30...Ba5 (30...Rc8 31.Qg3 Kh8 32.Qe3–+) 31.Qf6 Bd8 32.Qc3 a5 33.f4 Rb3 34.Qe5 b5 35.Kf2?? a4 36.g4 a3 37.Qd6 Bh4 38.Kg2 Rb2 (38...Rb2 39.Kh1 a2–+) 0–1. Di Pietro,Rosario (1665) – Bonaretti,Alberto, WB/006 – webserver classe B n., 2008.

15.h3 c4–/+ 16.Ne1 c3 17.Rc1 Bh2 18.Kh1 Re8 =.

15.h3 c4–/+ 16.Nf4 Bf4 17.ef4 c3 18.Rc1 Rd8 (18...Bf5 19.Bf3 Rfd8 20.Bd5 Nd5–+ (20...Rd5?! 21.Bc3 Qf4 22.Qf3 Qf3 23.Nf3=)) 19.Nb3?? (better is 19.Nb1 Bh3! A) 20.gh3 Nf4 21.Qe1 Qe5 (21...Nh3?! 22.Kh1=) 22.Nc3 Qg5 23.Bg4 Ng4–+; B) 20.Nc3 Nf4 21.Nd5–/+) 19...Nf4 20.Qc2 Qe5 (21.Bc3 Ne2 (21...Qe2?! 22.Bf6 Qc2 23.Rc2 gf6 24.Re1–+) 22.Kh1 Qh5 23.Bf6 Bh3 24.Qe2 Bg4 25.Kg1 Be2 (25...gf6?! 26.Qe7=) 26.Bd8 Bf1 27.Rf1 Rd8–+; 20...Ne2?! 21.Qe2 Nd5 22.Bc3 Nc3 23.Qf3=+) 0–1. Kroon,Mike JL – Nakad, corr NED–ch H, 1983.

15.h3 c4–/+ 16.Nf4 Nf4?! 17.ef4 c3 18.Rc1 =+.

15.Nc4 b6 16.Nd6 Qd6 17.Ne5 Rfe8 +=.

15.Nc4 b6 16.Bf3 Rad8= 17.Nd6 Rd6 18.Qc1 Rfd8 =.

15.Nc4 b6 16.Bf3 Rad8= 17.Nd6 Rd6 18.Qe1 Bf5 19.Ne5 Nb4 20.Qc3 (20.Nc4 Rd3 21.Qc1 Rfd8=) 20...Rfd8 21.e4 (21.a5 Nfd5 22.Qb3 f6=) 21...Bc8 (21...Be4 22.Rae1 Bf3 23.Qf3–/+) 22.Ng4? (better is 22.Rfe1!?=) 22...Bg4–/+ 23.e5 Rd3 24.ef6 Qd7 (24...Qd6 25.Qc4 Bf3 26.gf3–/+) 25.Qe5 (better is 25.Bg4!? Qg4 26.Qe5–/+) 25...Bf3–+ 26.gf3 Qh3?? (better is 26...g6–/+) 27.Rae1 h6 (27...Qf1 28.Kf1 Rd1 29.Rd1 Rd1 30.Kg2 gf6 31.Qg3 Kf8 32.Bf6 Ke8 33.Qc7 Rg1 34.Kg1 Nc6 35.Qc6 Kf8 36.Qc8) 28.Qe8! (28...Kh7 29.Qf7 R3d7 30.Re7 Rg8 31.Rd7 Qf3 32.Qg7 Rg7 33.Rg7 Kh8 34.Re1 Qa8 35.f7 Qf8 36.Re8 Qe8 37.fe8Q#; 28.fg7?! Qd7 29.Qf4 Qd6+/–) 1–0. Hess – Becher,A, corr DDR, 1971.

15.Nc4 b6 16.Bf3 Rad8= 17.Nd6 Rd6 18.Qe1 Bg4 19.Bg4 Ng4 20.h3 =+.

15.Nc4 Nc3 16.Bc3 Bc4 17.Qc2 Bd5 18.Rad1 Rfd8 19.Nc1 =.

15.Nc4 Nc3 16.Bc3 Bc4 17.Qc2 Be6 18.Rfd1 Rfd8 =.

15.Nc4 Nc3 16.Bc3 Bc4 17.Qc2 Be6 18.Ne1 Nd5 19.Bb2 =+.

15.Nc4 Nc3 16.Bc3 Bc4 17.Qc2 Be6 18.Ne1 Ng4 19.Nf3 Bd5 (19...Rac8 20.h3 Nh6 21.Rfd1=) 20.g3 (20.Rfd1 Be4 21.Qb2 f6=) 20...Rfe8 (20...Rad8=) 21.Bd2 (21.Rad1!? Be4 22.Qb2+=) 21...Qf6–/+ 22.Bc3 (better is 22.Qc3!?–/+) 22...Qh6–+ 23.h4 (23.e4 Be4 24.Qd2 Qh3–+) 23...Ne3! 24.Qd2? (24.fe3 Qe3) 24...Nf1 25.Qh6 (25.Kf1 Qd2 26.Nd2 Rad8–+) 25...gh6 26.Kf1 Re2! (27.Ke2 Re8 28.Kd2 Bf3–+) 0–1. Verbruggen,J – Rohde Jensen,Kristian, corr, 1972.

15.Nc4 Rfd8 16.Rc1 Nb4 17.Qb3 = (< 17.Nd6 Rd6 18.Rc5 Nd3 19.Bd3 Rd3 20.Qd3 Qc5–/+).

15.e4 Nf4 16.e5 Ne2 17.Qe2 +–.

15.e4 Nf4 16.Nf4 Bf4 17.e5 =+.

16.Nc4 Ne4= 17.Rc1 Rac8 =.

16.Nc4 Ne4= 17.Nd6 Nec3 18.Qc2 Ne2 19.Qe2 Qd6 20.Be5 =.

16.Nc4 Ne4= 17.Nd6 Nd6 18.Re1+= Qg5 19.Bf3 Nc4 20.Bd4 Nd2 21.Re5 Nf3 22.Qf3 Qh4 23.Re4 (23.Rd5 Bd5 24.Qd5–/+) 23...Qg5+= 24.Rae1 b6 25.Re5 Qh4? (25...Qg6 26.Qe4+=) 26.R1e4 (26.Rd5 Bd5 27.Qd5+/–) 26...Qd8 (26...Qh6 27.Qg3+/–) 27.Qg3 Qc7 28.Rh4 Rfe8 (28...Rfc8+/–) 29.Qf3 (better is 29.Rh7! f6 30.Reh5 Qg3 31.hg3+/– (31.fg3?! Kf7=)) 29...Rad8= 30.Rg5 (30.Re1!?=) 30…f6!=+ (31.Rd5 Bd5–+) 0–1. Van Gompel,H – Rohde Jensen,Kristian, corr ICCF, 1991.

16.ed5 cd3 17.de6 de2 18.Qe2 fe6 +=.

16.ed5 cd3 17.de6 de2 18.Qe2 Qe6 19.Qe6 fe6 +=.

15.Qb3 Qc7 16.h3 Be6 (16...Rac8 17.Nc4=) 17.Qc2 Bf5 (17...Rfd8 18.Nc4 Bh2 19.Kh1=) 18.Qb3 (18.Nc4 Rac8=) ½–½. Bendig,Frank – Beniesch, corr BdF, 1988.

15.Nc4 Nb6 16.Nd6+/– Qd6 17.Bf6 (17.Rc1 Ng4 18.Bg4 Bd3+/–) 17...gf6 (17...Qf6 18.Nc5 Rfd8 19.Qb3+=) 18.Nb2 (18.Rc1 c4 19.Nf4 Qd1 20.Rfd1 Na4 21.Bc4 Nb2+/–) 18...Qe5 (18...Rfd8 19.a5 Nd5 20.Qc1+/–) 19.Nc4 (19.Qc1 Nd5+/–) 19...Nc4 20.Bc4 b6 (20...Rfd8 21.Qe2+/–) 21.Qe2 Rae8 (21...Rad8 22.a5+/–) 22.Ra3 (22.a5 Rd8+/–) 22...Re7 (22...Rd8 23.a5+/–) 23.Rd1 Kh8 24.Rd5 (24.a5 Rg8+/–) 24...Qe4 25.Qd3 (25.Rd2 Rg8 26.Qf1 Be6+=) 25...Rg8 26.g3 Qd3 27.Bd3 Bg6 (27...Bd3 28.Rad3 Rge8 29.a5+/–) 28.Rd6 (28.Bc4 Be4 29.Rd6 f5+/–) 28...Kg7 29.Bc4 Rc8 (29...Bf5 30.a5+/–) 30.a5 ba5 31.Ra5 Be4 (31...Rcc7 32.Kf1+/–) 32.Raa6 f5 33.f3 (better is 33.Kf1!?+/–) 33...Bf3= 34.Kf2 Be4 35.h3 (35.Ra2 Rb8=) 35...Rcc7 36.Ke2 Bb7 37.Ra3 Re4 38.Bd3 Rb4+= 39.Bf5 Rb5–/+ 40.Ra7 Bf3!–+ 41.Kf3 Ra7 42.Bd3 Rb3 43.Rd5 Rc7 44.Rg5 Kh8 45.Rd5 c4 46.Bc2 Rb2 47.Rd2 Ra7 48.Rd8 Kg7 49.Be4 Rc7 (49...Rc7 50.Rd1 c3–+) 0–1. Wolf – Schulz, corr, 1981.

15.Nc4 Bd3 16.Qd3+= Bc7 17.Bf3 Rad8 18.Qf5 Rfe8 19.Rad1 Qe6 20.Qe6 fe6 21.a5 b6 22.ab6 ab6 23.e4 Ne7 24.Rd8 Rd8 25.e5 (25.Ra1 Nc8+/–) 25...Nfd5+= 26.Ra1 h6 27.Bg4 Kf7 28.Ra7 g6 29.g3 Nc8 30.Ra8 Ke7 31.h4 Kd7 32.Bf3 Rf8 (32...Nce7 33.Rd8 Kd8 34.Be4+=) 33.Bg2 Rf7 (33...g5 34.hg5 hg5 35.Be4+=) 34.Bh3 (34.Bc1 h5+/–) 34...Nce7+= 35.Ra3 Nf5 36.Rd3 Kd8 (36...Ke8 37.Bc1 h5 38.Bg2+=) 37.Bc1 (37.h5 gh5 38.Ne3 Nfe3 39.Be6 Re7 40.Bd5 Nd5 41.Rd5 Ke8+/–) 37...h5+= 38.Bg5 Ke8 39.Bf5 gf5 40.Ra3 Rd7 41.Ra8 Kf7 42.Rh8 Nc3 43.Rh5 Nb5 44.Rh7 Ke8 45.Rh8 Kf7 46.h5 Rd4 47.h6 (47.h6 Rc4 48.Rh7 Kf8 49.Bf6 Be5 50.Be5+–) 1–0. Lahjo,Kyoesti – Louhi,Yrjoe, SM/ME–70 corr/Ks71 FIN, 1970. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 c5 5.e3 Bd6 6.c4 Nbd7 7.Be2 0-0 8.0-0 Qe7 9.a4 e5 10.cd5 e4 11.Ne1 Nd5 12.d3 ed3 13.Nd3 N7f6 14.Nd2 Bf5)

15.Nc4 Rfd8 16.Qc1 =.

15.Nc4 Rfd8 16.Nd6 Rd6 17.Qc1 =.

15.Nc4 Rfd8 16.Nd6 Rd6 17.Nc5 Ne3 18.Bf6 Qf6 (18...Rd1?? 19.Be7 Rf1 20.Bf1 Nf1 21.Kf1+–; 18...Rf6?! 19.fe3 Qe3 20.Kh1 Qc5 21.Bf3=+; 18...gf6?! 19.Qb3 Nf1 20.Bf1–/+) 19.fe3 Rd1 20.Rad1 Qg5 21.Nb7 Qe3 22.Rf2 Bc2 –/+.

15.Nc4 Rfe8 16.Nd6 Qd6 17.Rc1 Rac8 =.

15.Nc4 Rfe8 16.Nde5 Rad8 17.Qc1 Be5 18.Ne5 Nd7 19.Nc4 N7b6 20.Nb6 Nb6 (20...ab6 21.Rd1=) 21.Qc3+= f6 22.a5 (22.Rfc1 Rc8+=) 22...Nd7 (22...Nd5 23.Qb3+=) 23.Bc4 (23.Rac1 Rc8+=) 23...Kh8 24.Rad1 Ne5 25.Bd5 (25.Be2 b6+=) 25...b6 26.ab6 ab6 27.e4 Be6 28.f4 Nf7 29.Be6 (29.Bc6 Bd7 30.Rd7 Rd7=) 29...Rd1= 30.Rd1 Qe6 31.e5 fe5 32.fe5 h6 (32...Qe5? 33.Qe5 Ne5 34.Be5+–; 32...Ne5? 33.Qe5 Qg6 34.Qf4+–) 33.Rd3 Re7 (< 33...Qe5 34.Qe5 Re5 35.Be5 Ne5 36.Rd8 Kh7 37.h4+/–; 33...Ne5? 34.Re3+–) 34.h3 (34.Re3 Kg8=) 34...c4 (34...Ne5? 35.Re3+–) 35.Rd4 Rc7 (35...Ne5? 36.Re4 Qd6 37.Re5+–) 36.Rg4 Rc5 37.Qb4 Ne5 38.Re4 Nd3 39.Re6 Nb4 40.Rh6 Kg8 41.Rb6 c3 42.Ba3 c2 43.Rb8 Kf7 44.b6 c1Q 45.Bc1 Rc1 46.Kh2 Rc6 47.b7 Rb6 48.h4 Kg6 49.h5 Kg5 ½–½. Mueller,Klaus – Grossmann,P, corr ICCF Cup, 1972.

15.Nf3? c4 16.Nf4 Bf4 17.ef4 c3 +=.

15.Nf3? Ng4 16.Nc5 (16.h3 Ngf6 17.Nde5 Nb4+=) 16...Nde3 (16...Rfd8 17.Nd3 Bd3 18.Bd3 Nde3 19.fe3 Qe3 20.Kh1 Bc5=) 17.Qd4= Nf6 (17...f6 18.Nb7 Qb7 19.fe3=) 18.Nb7+/– (18.Qe3?! Qe3 19.fe3 Bc5=; worse is 18.fe3 Bc5 19.Qe5 Be3 20.Kh1 Qe5 21.Ne5 Be6–/+) 18...Bh2 19.Nh2 (19.Nh2 Qb7 Zwischenzug; 19.Kh2 Neg4 Double attack (19...Qb7 Zwischenzug)) 19...Nf1 20.Kf1?? (better is 20.Nd6 Bc2 21.Kf1+–) 20...Qb7= 21.Bf3 Qc7 22.Ba8 Ra8 23.Qh4 (23.Rd1 Re8 (23...Qh2?? 24.Qd8 Ne8 25.Qa8 Qh1 26.Ke2 Qh5 27.f3+–) 24.Nf3 Qc2+=) 23...Ne8 ½–½. Cser,Tamas – Grabner,Helmut, ICCF World Cup4 prel–08, 1977.

16.fe3!? Qe3 17.Rf2 Bd3 18.Qd3? Bh2 19.Kh1 Qf2 –+.

16.fe3!? Qe3 17.Rf2 Bd3 18.Nf1 Bh2 19.Nh2 =+.

16.Bf6 gf6 17.fe3 Qe3 18.Rf2 Qd2 19.Rf5 Qe2 20.Nc5 =+.

16.Bf6 Bh2–/+ 17.Kh1? Qf6–+ 18.fe3 Bg3 19.Nf4 Qh4 20.Nh3 Bh3 21.Nf3 Be6 22.Nh4 Bb3 23.Nf5 Be5 24.Rac1 b6 25.Bd1 Bd1 (25...Be6 26.Ne7 Kh8 27.Bf3–+) 26.Ne7 Kh8 27.Rcd1 Bf6 28.Nd5 Bg5 29.Nc7 Rad8 (29...Rac8 30.Rd7 Kg8 31.Nd5–+) 30.Rd8 Rd8 (30...Bd8?! 31.Ne6 Re8 32.Nd8 Rd8 33.Rf7–/+) 31.Rf7 Kg8 32.Rf3 Rd1 33.Kh2 Ra1 34.Rf5 h6 (35.Re5 Ra4–+) 0–1. Hirtreiter – Weiser, corr BdF, 1988.

16.Bf6 Bh2–/+ 17.Kh2 Nf1.

16.Ba3 Nc3 17.Qc2 Nfd5 18.Rfe1 –/+.

16.a5 Rfd8 =.

16.Qb3 Rad8 17.a5 =.

16.Qc2 =.

16.Nc5? Qc5 17.Ba3 Nb4 18.Qb3 =+.

16.Nc5? Qc5 17.Ba3 Nb4 18.Qd2 –+.

16.Nc5? Rfd8?? 17.Nd3 +=.

16.Nc5? Rfd8?? 17.Bd4?? Nc3!–+ 18.Qd2 (18.Bc3 Rd1) 18...Ne2 19.Qe2 (19.Kh1 Ne4 20.Qe2 Rd4 21.Ne4 Be4–+) 19…Rd4! (20.Rfc1 Bh2 (20...Qc5?! 21.ed4 Qd4 22.Ne3–+) 21.Kh2 Rh4 22.Kg1 Qc5–+) 0–1. Van der Spek,Hein Piet – Kliesch,Bernd Walter, corr ICCF EU–ch M, 1977.

16.Nde5 Rad8 17.Qb3 =.

16.Nde5 Rfd8 17.Qb3 Nd7 18.Nf3 Nf4 19.Bd1 Nd3 20.Bc2 Nb2 21.Bf5 Nc4 22.Qc4 =.

16.Nde5 Rfd8 17.Qb3 Nd7 18.Nf3 N5f6 19.a5 Be6 20.Qc3 Bc4 (20...Rac8 21.Rfd1+=) 21.Bc4 Re8 22.Rfd1 Ne5 23.Ne5 Be5 24.Qe5 Qe5 25.Be5 Re5 26.Be2 (26.Rd6 Re4 27.Rc1 Rc8+=) 26...Rb8 (26...Kf8 27.Rac1+=) 27.Bf3 (27.Kf1 Kf8+=) 27...Kf8 (27...c4 28.b6 ab6 29.ab6=) 28.g3 (28.Ra4 c4+=) 28...Ke7 (28...c4 29.b6 ab6 30.ab6=) 29.Ra4 Ne8 30.b6 ab6= 31.ab6 Nd6 32.Kf1 f5 33.Rda1 Kd7 34.Rd1 Ke6 35.g4 fg4 36.Bg4 Ke7 37.Ke2 c4 38.Rb1 Rb5?? 39.f4?? g5 40.Kd2?? Rd8 41.Kc2 h5 42.Bf3 gf4 43.ef4 Rf5 44.Bb7 Nb7=+ 45.Rc4 Rc5 46.Rc5= Nc5 47.Rb5 Kd6 48.b7 Rb8 49.Rb6 Kd5 50.Rh6 Rb7 51.Rh5 Kd4 52.f5 ½–½. Kretschmar,Heinz – Wagner, corr DDR, 1984.

17.a5 Nc3–/+ 18.Qc2 Ne2 19.Qe2 Qd7 –/+.

17.a5 Nc3–/+ 18.Qd2 Ne2 19.Qe2 Qd7 20.Nde5 Qb5 21.Bb2 –/+.

17.a5 Nc3–/+ 18.Qd2 Ne2 19.Qe2 Ng4 20.h3=+ Qh4 (20...Rfd8 21.Rad1 Nh2 22.Rfe1 Bh3 23.gh3 Qg5 24.Kh1 Qd5 25.f3 Qc4 26.f4=) 21.f4 (21.ab6 ab6 22.Nf4 Nf6=+) 21...Nf6=+ 22.Nf2 (22.Bb2 Ne4 23.Qc2 f6=+) 22...Rfe8 23.Qf3 Ne4 24.a6 Rad8 25.Bb2 Nf2 26.Rf2 Be4 27.Qg4 Qg4–+ 28.hg4 Bd3 29.Ne5 Bb5 30.g5 Re6 31.Ng4 Re4 32.Ra3 Rd1 33.Kh2 Bd3 34.Kg3 h5 35.gh6 f5 36.hg7 fg4 37.Kg4 Re3 38.g3 Rg1 39.Rf3 Rf3 40.Kf3 c4 41.Bc3 Rc1 42.Bd4 Bd6 43.Ra2 c3 44.Ke3 Bh7 (45.Bb6 c2 46.Rc2 Rc2 47.Ba7 Ra2–+) 0–1. Bender,Herbert – Mittag,Lothar, corr DDR–ch M627, 1979.

17.a5 Nc3–/+ 18.Qd2 Nfe4 19.Qb2 Ne2 20.Qe2 –+.

17.Qb3!? =.

17.Rfd1 Ne4 =.

17.g3 Ne4 18.Rfd1 Ng5 19.Nc5 Qc5 20.Ba3 Nb4 21.Bb4 +–.

17.g3 Ne4 18.Rfd1 Ng5 19.Nc5 Nh3 20.Kg2 Bc8 +/–.

17.g3 Ne4 18.Rfd1 Ng5 19.Ne1 Nb6 20.Nd2 (20.Qc3 Qf8=) 20...Rac8 (20...Be5 21.Be5 Qe5 22.Nef3=) 21.a5= Nd5 22.Ndf3 (22.Bc4 Be6=) 22...Nf3 (22...Nb4 23.Ng5 Qg5 24.Rd8 Rd8 25.Qc3=) 23.Nf3 (23.Bf3 Be4=) 23...Nb4 24.Ne1 (24.Rd8 Rd8 25.Bc4 Nd3=) 24...Rd1=+ 25.Qd1 Rd8 (25...Be6 26.Bc4=+) 26.Qb3= Be5 27.Be5 Qe5 28.Rd1 Rd1 29.Qd1 Qc7 30.Qa1 h6 31.Bc4 Qd6 32.Qc1 b6 33.ab6 ab6 34.Kf1 h5 35.h4 Bh3 36.Ke2 Bg4 37.Kf1 Qg6 38.Kg1 Be6 39.Be2 Bg4 40.Bc4= Qe4 41.Bf1 Qe5 42.Qd2 Nd5 43.Nc2 Bf3=+ 44.Bg2 Bg2 45.Kg2 Qe4 46.Kf1 Qc4 47.Qe2 Qb3 48.Qh5 Qb5 49.Ke1? Nc3–+ 50.Kd2 Ne4 51.Ke1 Qb1 52.Qd1 Qd1 53.Kd1 Nf2 54.Ke2 Ne4 55.Kf3 Nd2 56.Ke2 Nc4 57.Kd3 b5 58.Ne1 f6 59.h5 Kf7 60.Ng2 Nd6 61.g4 b4 62.Nh4 c4 63.Kc2 b3 64.Kb2 Ke6 65.Nf3 Kd5 66.Nd4 Ke4 (67.Kc3 Ke3–+) 0–1. Martine,JM – Bauer,W, corr ICCF EU/M/GT/243 (year?).

17.g3 Ne4 18.Rfd1 Ng5 19.Ne1 Nh3 20.Kg2 =.

15.Nc3 Nc3–/+ 16.Bc3 Rad8 17.Bf6 Qf6 18.e4 Be6 (better is 18...Qh6 19.h3 Bh3–/+) 19.Qc2? (better is 19.Qc1–/+) 19...c4–+ 20.Nb2 Be5 21.Rab1 Qf4 22.Rfd1 Qh2 23.Kf1 c3 (23...Rc8 24.Ke2–+) 24.Nd3 Bc4 25.Ke1 (25.b6 ab6 26.Rb4–+) 25...Rd4 26.g3 (26.Rb3 Bb3 27.Qb3–+) 26...Rfd8 27.Rb4 (27.Qc3 Rd3 28.Qd3 Rd3 29.Rd3 Qg1 30.Kd2 Qf2 31.Be2 Bd3 32.Kd3 Qg3 33.Bf3 Qf3 34.Kd2 Qf2 35.Kd3 Qd4 36.Ke2 Qe4 37.Kf2 Bd4 38.Kg3 h5 39.Rf1 Qg4 40.Kh2 Be5 41.Rf4 Bf4 42.Kh1 Qh3 43.Kg1 Be3) 27...Bd3 28.Rd3 Rd3 (29.Rb2 Qg1 30.Ke2 Bg3 31.Qd3 Qf2 32.Kd1 Rd3 33.Rd2 Qd2#) 0–1. Gerold,G – Teipelke,H, corr ICCF EU/M/Gr/628 (year?).

15.Re1 Rad8 16.e4 Ne4 17.Be4 Be4 18.Bg7 Bh2 19.Kh1 Bg2 20.Kh2 Qh4 21.Kg2 Nf4 22.Nf4 Rd1 23.Rd1 Qg4 24.Kh2 Qf4 25.Kg1 Qg4 26.Kh2 Qd1 27.Bf8 Kf8 28.Kg3 –+.

15.Re1 Bd3 16.Qd3= Nb4 17.Qf5+= Rad8 18.Rf1 +=.

15.Re1 Bd3 16.Qd3= Nb4 17.Qf5+= Ne8 18.Na3 g6 19.Qe4 Qe4 20.Be4 f5 (20...Rb8 21.Nc4+/–) 21.Bb7 Rb8 22.Bf3 Nd3 23.Bd5 Rf7 24.Nc4 Ne1 25.Re1 Rd8 26.g3 (26.Bf7 Kf7 27.a5 Bb8+/–) 26...Bc7 27.Bf7 (27.Rd1 g5+/–) 27...Kf7 28.Ba3 Rd5 29.Rc1 (29.a5 Nd6 30.b6 ab6 31.ab6 Bb8+/–) 29...Nf6 30.f3 Nd7 (30...Ke6 31.Bb2+/–) 31.Kf1 Rd3 32.Ke2 Rb3 33.Kd2 Ba5 34.Kc2 Rc3 35.Kb2 Rc1 36.Kc1 Bc7 37.Kc2 Ke6 38.Kd3 Kd5 39.e4 fe4 40.fe4+/– Ke6 41.Bc1 h5 42.Bf4 Bd8 43.h4 Be7 44.Bc7 g5 45.hg5 Bg5 46.a5 h4 47.gh4 Bh4 48.a6 (48...Kf7 49.b6 Nb6 50.Bb6+–) 1–0. Wolf – Flack,Rolf, corr DDR–Cup, 1976.

15.Re1 Bd3 16.Qd3= Be5 17.Be5 Qe5 18.Na3 =.

14.Ba3 Ba3 15.Na3 Rd8 16.Qb3 =+.

14.Ba3 Be6 15.Nc2 Rfc8 16.Nd4 =+.

14.Ba3 Be6 15.Nc2 Rfd8 16.Nd4 Nf4 (16...Rac8 17.Bc5 Rc5 18.Qd2=+) 17.Re1 (17.ef4 Rd4 18.Qd4 Bd4 19.Be7 Ba1=) 17...Ne2 18.Qe2 Bg4 19.Qb2 (19.Qd2 Rac8=+) 19...Bd4 20.Qd4 (20.ed4 Qd7=+) 20...Qe6–/+ 21.Qb2 (better is 21.Qc5!?–/+) 21...Bf3!–+ 22.h3 (22.gf3 ef3) 22...Rd5 23.Nd2 (23.Qa2–+) 23...Rg5 24.g4 (24.Kf1 Rg2 25.Nf3 ef3 26.Qc3 Qh3 27.Qc8 Rc8 28.Rad1 Qh1) 24…Rg4 (25.Kh2 Rg2 26.Kh1 Qh3#) 0–1. Madge,Egon – Roos, corr ICCF EU–ch H, 1979.

14.Ba3 Be6 15.Bc5 Qc5 16.Nc2 Rfd8 =+.

14.Nc2 Rd8 15.Nd2 Bd7 =+.

13.Nc3 Qe5 14.g3 =+.

15.fe4 Qe4 16.Bb2 Be6 =.

16.Qb3 Rad8 17.Bc4 Nb6 =+.

16.Qb3 Rad8 17.Bc4 Qh4 18.g3–/+ Bg3! 19.hg3 Qg3 20.Kh1?? Rd6–+ 21.Ng2 Rg6 (22.Rf2 Qf2 23.Bf1 Rh6 24.Nh4 Rh4 25.Bh3 Rh3#) 0–1. Bendig,Frank – Feilmayr,Erwin, corr SOK–90–??, 1990.

16.Bc4 Nb6 ½–½. Luzuriaga,Norberto Horacio – Dias, XV Zonal Latinoamericano, 2000.

16.fe4 Qe4 17.Bd3 Ne3 18.de3 Qe3 19.Kh1 Bd3 20.Nd3 +/–.

16.fe4 Be4 17.Nf3 Rad8 =.

10.Qc2 a5 A) 11.Na4 Bb7 12.d4 (12.Rfe1 h6 13.h3 e5 14.Nh4 g6 15.d3 Rfe8 16.Rad1) 12...cd4 13.Bd4 e5 14.Bb2 Rac8 15.Rac1 Rfd8 16.Rfd1; B) 11.d4 B1) 11...dc4 12.Na4 (12.dc5 Nc5 13.Nd2 Bb7 14.Nc4 Bc7 15.Rad1 Rfd8 16.f4) 12...Bb7 13.dc5 Bc5 14.Nc5 Nc5 15.Rad1 Be4 16.Qc4; B2) 11...Bb7 12.cd5 (12.Rad1 Rac8 13.Qd2 h6 14.cd5 ed5 15.dc5 Nc5 16.g3) 12...ed5 13.dc5 Nc5 14.Nd4 Rac8 15.Nf5 Qe6 16.Nd6; C) 11.g3 C1) 11...g6 12.d4 (12.cd5 ed5 13.Na4 Rb8 14.Rfe1 Re8 15.Rac1 Qd8 16.Ng5) 12...Bb7 13.cd5 ed5 14.dc5 Nc5 15.Na4 Nfd7 16.Rac1; C2) 11...Bb7 12.cd5 (12.d3 h6 13.Rad1 Rfd8 14.Na4 e5 15.Nd2 d4 16.Bf3) 12...ed5 13.Rac1 Rfe8 14.Rfd1 Rac8 15.Nh4 g6 16.Nf3; D) 11.ba6 D1) 11...dc4 12.Nb5 (12.a4 Ba6 13.Nb5 Ng4 14.Bc4 Nde5 15.Ne5 Be5 16.h3) 12...Ba6 13.a4 Ng4 14.Bc4 Nde5 15.Ne5 Be5 16.h3; D2) 11...Ba6 12.a4 (12.d3 Rfd8 13.Nb5 Bb5 14.cb5 e5 15.Nd2 Nf8 16.h3) 12...Bc4 13.Bc4 dc4 14.Nb5 Ng4 15.Qc4 Nde5 16.Ne5.

10.Qc2 Bb7 11.h3 (11.cd5 ed5 (11...Nd5 12.Ne4 Bc7 13.Bc4 f5 14.Ng3 N7f6 15.Be5 Be5 16.Ne5) 12.g3 (12.Rfe1 Rfe8 13.g3 g6 14.d3 Ne5 15.Na4 Rac8 16.Ne5) 12...Rfe8 13.Rfe1 g6 14.a4 Rac8 15.Qd3 Qf8 16.Bd1; 11.Rfd1 A) 11...a6 12.ba6 (12.d3 a5 13.Rac1 h6 14.Rd2 Rfd8 15.Rcd1 Bc7 16.g3) 12...Ba6 13.d3 Bb7 14.Nb5 e5 15.Nh4 g6 16.Bf3; B) 11...a5 12.ba6 Ba6 13.d3 h6 14.a4 Ne5 15.Ne5 Be5 16.f4; C) 11...h6 12.d3 (12.cd5 ed5 13.g3 Rfe8 14.Nh4 g6 15.Re1 a5 16.f4) 12...Rfd8 13.h3 Rac8 14.Qa4 Rc7 15.Rab1 d4 16.ed4; 11.a4 A) 11...Rfe8 12.a5 (12.cd5 ed5 13.d4 Ne4 14.a5 Ndf6 15.g3 Nc3 16.Bc3) 12...dc4 13.Bc4 ba5 14.Ra5 Ng4 15.Ne4 Nh2 16.Nh2; B) 11...Rfd8 12.cd5 (12.a5 dc4 13.a6 Bf3 14.Bf3 Rab8 15.Be2 Ne5 16.f4) 12...ed5 13.Rfe1 Re8 14.g3 Rac8 15.Nh4 g6 16.Nf3; C) 11...dc4 12.Bc4 (12.a5 ba5 13.Ra5 Bc7 14.Ra3 e5 15.e4 Nb6 16.Rfa1) 12...Ng4 13.Ne4 Nh2 14.Nh2 Bh2 15.Kh2 Qh4 16.Kg1 Be4) 11...dc4 (11...Rfe8 12.d3 (12.Rfe1 h6 13.cd5 ed5 14.Nh4 g6 15.f4 a5 16.Bf3) 12...h6 13.Rad1 a5 14.Rd2 Red8 15.Rfd1 Rf8 16.Rb1; 11...Rfd8 12.cd5 (12.Rab1 dc4 13.Bc4 h6 14.Be2 Ne5 15.Ne5 Be5 16.f4) 12...ed5 13.Rfe1 g6 14.a4 Ne5 15.Ne5 Be5 16.f4) 12.Bc4 Rad8 (12...Rfc8 13.Rfd1 h6 14.Be2 Ne5 15.Ne5 Be5 16.Qa4) 13.Be2 Ne5 14.Ne5 Be5 15.Rfd1 (15.Rad1 g5 16.Na4) 15...Ne4 (15...Rd7 16.f4) 16.Ne4 Bb2 17.Qb2 Be4 18.d3 Bb7 19.a4 Qg5 20.g3 Qf5 21.h4 Qd5 22.e4 Qd4 23.Qb3 Qe5 24.a5 f5 25.ab6 fe4 26.Bg4 (26.ba7 e3 27.Bg4 c4 28.Qc4 ef2 29.Kf1 Kh8–+) 26...Bd5–/+ 27.Qc2 ed3 (27...ab6?! 28.de4 h5 29.ed5 hg4 30.de6 Qe6 31.Re1=) 28.Qd3 Qf6 29.Qe3 ab6 30.Ra7 Kh8 31.f4 Qg6 32.Be2 h6 33.h5 Qf5 34.Qe5 (34.Qc3!? Rf7 35.Rf7 Qf7 36.Qe5–/+) 34...Qe5–+ 35.fe5 Rf5 36.Rb7 Ra8 37.Rb6 Re5 38.Bg4 Ra4–+ 39.Bh3 Ra3 40.Rb8 Kh7 41.b6 Rg3 42.Kh2 Rb3 43.Rd5 ed5 44.b7 Rh5 45.Rc8 Rb7 46.Rc5 Rb2 47.Kg3 Rb3 (47...Rb3 48.Kf4 Rbh3–+) 0–1. Baeckstroem,Mikael (2225) – Zylla,Johannes (2125), corr ICCF WSTT/3/06/Final, 2009.

10.Qc2 dc4 A) 11.Ng5 a6 (11...Bb7 12.f4 a6 13.Bc4 h6 14.Nf3 Bd5 15.Qb3 Bc4 16.Qc4; 11...h6 12.Nge4 Ne4 13.Ne4 Bc7 14.f4 a6 15.a4 ab5 16.ab5) 12.f4 (12.Bc4 h6 13.Nge4 Ne5 14.Nd6 Qd6 15.Be2 Bb7 16.f4) 12...h6 13.Nge4 Bb7 14.Nd6 Qd6 15.Bc4 e5 16.a4; B) 11.Ne4 B1) 11...Bb7 12.Nd6 (12.Nf6 Nf6 13.Bc4 Ng4 14.Be2 f6 15.Rac1 Rad8 16.h3) 12...Qd6 13.Qc4 a6 14.Qd3 Qd3 15.Bd3 Rfd8 16.Be2; B2) 11...a6 12.Nd6 (12.a4 Bb7 13.Nf6 Nf6 14.Ng5 e5 15.ba6 Ba6 16.Bc4) 12...Qd6 13.a4 Bb7 14.Qc4 ab5 15.ab5 Ra1 16.Ra1.

10.Qc2 Rd8 A) 11.h3 A1) 11...g6 12.Qa4 (12.cd5 ed5 13.Qa4 Bb7 14.Qh4 Ne4 15.Qe7 Be7 16.Rac1) 12...Bb7 13.cd5 ed5 14.Qh4 Ne4 15.Qe7 Be7 16.Rac1; A2) 11...h6 12.cd5 (12.a4 Bb7 13.cd5 ed5 14.Nh4 g6 15.f4 Re8 16.Rfe1) 12...ed5 13.Nh4 g6 14.f4 Bb7 15.a4 Re8 16.Rfe1; A3) 11...Bb7 12.Rac1 (12.cd5 ed5 13.Rfe1 g6 14.a4 Ne5 15.Ne5 Qe5 16.f4) 12...dc4 13.Bc4 h6 14.Bd3 Bf3 15.gf3 Rac8 16.Be2; B) 11.cd5 ed5 12.d4 (12.Rfe1 Bb7 13.a4 Re8 14.g3 Rac8 15.d4 Ne4 16.dc5) 12...Bb7 13.dc5 bc5 14.Rad1 h6 15.h3 Nb6 16.Rfe1; C) 11.Rfe1 C1) 11...Bb7 12.cd5 (12.Rac1 dc4 13.Bc4 h6 14.Be2 Ne5 15.Ne5 Be5 16.Red1) 12...ed5 13.a4 Re8 14.g3 Rac8 15.Qd3 Qd8 16.Bf1; C2) 11...g6 12.cd5 (12.Qa4 Bb7 13.cd5 ed5 14.Qh4 Ne4 15.Qe7 Be7 16.d4) 12...ed5 13.Qa4 Bb7 14.Qh4 Ne4 15.Qe7 Be7 16.d4; C3) 11...a5 12.cd5 (12.h3 Bb7 13.cd5 ed5 14.Rad1 Re8 15.Nh4 g6 16.Nf3) 12...ed5 13.Nh4 g6 14.f4 Bb7 15.Nf3 Re8 16.Na4; D) 11.Rac1 D1) 11...g6 12.d4 (12.Rfe1 Bb7 13.cd5 ed5 14.g3 Re8 15.Ra1 Qf8 16.d4) 12...Bb7 13.cd5 ed5 14.dc5 Nc5 15.Rfd1 Rac8 16.g3; D2) 11...dc4 12.Bc4 (12.h3 Bb7 13.Bc4 h6 14.Bd3 Bf3 15.gf3 Rac8 16.Be2) 12...Bb7 13.Bd3 g6 14.Ne4 a6 15.ba6 Ba6 16.Ba6; D3) 11...Bb7 12.cd5 (12.Rfe1 dc4 13.Bc4 Rdc8 14.h3 h6 15.Rf1 Rc7 16.Qd1) 12...ed5 13.Qf5 h6 14.Rc2 Ne5 15.Rcc1 a6 16.a4.

10.Qc2 g6 A) 11.h3 A1) 11...Bb7 12.d3 (12.cd5 ed5 13.Rfd1 Ne5 14.Ne5 Qe5 15.f4 Qe6 16.Bf3) 12...Rfd8 13.Rac1 dc4 14.dc4 Bc7 15.Rfd1 Ne5 16.Nd2 ; A2) 11...Re8 12.a4 (12.d4 Bb7 13.Rad1 Rec8 14.cd5 ed5 15.dc5 Nc5 16.Qd2) 12...Bb7 13.cd5 ed5 14.d4 Ne4 15.a5 ba5 16.Ra5; A3) 11...a5 12.ba6 (12.d3 Bb7 13.Rad1 Rfd8 14.Rd2 Kg7 15.Re1 Ra7 16.cd5) 12...Ba6 13.a4 Bc4 14.Bc4 dc4 15.Nb5 Nd5 16.Qc4; B) 11.a4 B1) 11...Bc7 12.cd5 (12.d4 Bb7 13.Rfd1 Rac8 14.h3 dc4 15.Bc4 Bf3 16.gf3) 12...ed5 13.d4 Bb7 14.g3 Rac8 15.Rfd1 Rfe8 16.dc5; B2) 11...Rd8 12.a5 (12.h3 Bb7 13.cd5 ed5 14.Rfe1 Ne5 15.d4 Nf3 16.Bf3) 12...ba5 13.cd5 ed5 14.Ra5 Nb6 15.h3 Re8 16.d3; B3) 11...Bb7 12.a5 (12.cd5 ed5 13.g3 Ne5 14.Ne5 Be5 15.f4 Bc3 16.Qc3) 12...dc4 13.Bc4 Bc7 14.a6 Bf3 15.gf3 Rad8 16.f4; C) 11.d4 Bb7 12.Rad1 (12.cd5 ed5 13.dc5 Nc5 14.Rac1 a6 15.ba6 Ba6 16.Ba6) 12...dc4 13.dc5 Nc5 14.Nd2 Nd3 15.Nc4 Nb2 16.Qb2; D) 11.Qa4 D1) 11...Ne5 12.Ne5 (12.cd5 ed5 13.Qh4 Nf3 14.Bf3 Bb7 15.d3 Rae8 16.Rac1) 12...Be5 13.f4 Bd6 14.g4 Bb7 15.cd5 ed5 16.g5; D2) 11...dc4 12.Qc4 (12.Bc4 Bb7 13.Be2 Ne5 14.Ne5 Be5 15.Rad1 g5 16.g3) 12...Bb7 13.Qh4 h5 14.Qa4 Ne5 15.Ng5 a6 16.ba6; D3) 11...Bb7 12.cd5 (12.Qb3 Rfd8 13.a4 Bc7 14.cd5 ed5 15.d4 Re8 16.g3) 12...ed5 13.Qh4 Rfe8 14.Rfe1 Qe6 15.d4 Qg4 16.Qg4.

11.a4 dc4 12.Bc4 Ng4 13.Bd3 +=.

11.a4 Bc7 12.Ba3 Qd6 (12...Rfc8 13.Qb3=) 13.g3 (13.cd5 Nd5 14.Ne4 Qe7=) 13...Rfd8 (13...Rac8 14.Rc1=) 14.Nd2 (14.Qc2 dc4 15.Rfd1 Qe7=) 14...e5 15.Nd5 (15.Bf3 Rac8=) 15...Nd5+= 16.cd5 Bd5 17.e4 Be6 (17...Bb7 18.d5=) 18.d5 Bh3 19.Re1 Qg6 20.Bh5 (20.Bb2 Bd6=) 20...Qh6 (20...Qg5 21.Nc4 Nf6 22.Bf3=) 21.Nc4 (21.g4 g6 22.Re3 gh5 23.Rh3 Qg6+=) 21...Nf6= 22.Bf3 Qg6 (22...a6!?=) 23.Bb2+/– Nd7 24.Ra3 (better is 24.Re3+/–) 24...Re8 (better is 24...Qf6!?+/–) 25.Bh5+– Qf6? (better is 25...Qg5 26.Bc1 Qd8+–) 26.Rf3 (26.Rf3 Qg5 27.Bf7 Kh8 28.d6+–) 1–0. Herrmann,Frank – Schroeder,H, corr DDR–Cup6 sf03, 1979.

11.a4 Bc7 12.Nd2 Rad8 (12...Rfd8 13.Bf3=) 13.Bf3 (13.cd5 Qd6 14.g3 ed5=) 13...e5 (13...Qd6 14.g3+=) 14.Nd5 Nd5 15.cd5 (15.Bd5 Bd5 16.cd5 ed4 17.ed4 Qd6=) 15...ed4 16.ed4 Qd6 17.g3 Bd5 18.Bd5 Qd5 19.Qf3 (19.Qc2 Rfe8=) 19...Nf6 (19...Ne5 20.de5 Qd2 21.Rab1=) 20.Rfc1 (20.Rfd1 cd4 21.Rac1 Bd6 22.Qd5 Nd5 23.Bd4 f6=) 20...Rfe8 21.Rc2 Bd6 (21...Qf3!? 22.Nf3 Ne4=) 22.dc5+= Bc5 23.Bf6 Qf3 (23...gf6 A) 24.Qf6?? Bd4 25.Qd8 Rd8–+ (worse is 25...Qd8 26.Rac1–+); B) 24.Qd5 Rd5 25.Nb3+=) 24.Nf3+/– gf6 25.Kg2 Re4 26.Ng1 (26.Kf1 f5+=) 26...Rdd4 (26...f5 27.Ne2+=) 27.Rca2 Rb4 28.Nf3 (28.Ne2 Rec4+=) 28...Kg7 (28...f5 29.h4+=) 29.Nh4 Rec4 30.h3 Kf8 31.Nf5+/– h5 32.f3 Kg8 33.g4 Kh7 34.Ng3 Bd4 35.Rd1 hg4 36.hg4 Ra4= 37.Rad2 Be3 38.Re2 Bf4 39.Nf5 Rc1 40.Rc1 Bc1 41.Re7 Kg6 42.Nh4 Kg5+= 43.Kh3 a5 44.ba6= Ra6 45.Ng2 Ra3 46.Kg3 Bb2–/+ 47.Rd7 Be5 48.Kf2 Ra2 49.Kf1 Bg3 50.Rd5 Kg6 51.Rf5 Ra5 52.Nf4 Bf4 ½–½. Lelgemann,Ludwig – Schulze,Peter, corr DDR–M–551, 1974.

11.a4 Bc7 12.cd5 Nd5 13.Qd3 Nb4 =.

11.cd5 Nd5 12.Qd3 a6 =.

11.cd5 Nd5 12.Qd3 Rfc8 =.

12.cd5 ed5 13.dc5 bc5 14.a5 Rfd8 15.Qa4 (15.a6 Ba8=) 15...Nf8 (15...Ne4 16.Ra2+=) 16.b6 (16.Rfd1 Ne6=) 16...a6 (16...ab6 17.ab6 N8d7 18.Qa5+=) 17.Rfe1 (17.Rfc1 Ne6=) 17...Bb8 (17...Ne6 18.Qh4=) 18.Rad1 (18.Bd3 Ne4+=) 18...Ng6 19.Nh4 (19.Qc2 Qd6 20.Qf5 d4=) 19...Qd6 20.Nf3 Qe6 (20...Qe7 21.Rb1+=) 21.Nb1 (21.Bd3 Ne5 22.Ne5 Be5+=) 21...Ne4 (21...Nd7 22.Nbd2=) 22.Nbd2 f5 23.g3 (23.Rc1 Bd6=) 23...Qe7 (23...Bd6 24.Qc2=) 24.Bf1 (24.Qc2 Bd6=) 24...Rf8 (24...c4 25.Bd4=) 25.Bh3 (25.Qc2 Bd6=) 25...Rcd8 26.Bg2 Rf7 27.Rc1 Bd6 28.Red1 Nf8 29.Nf1 g5 30.N3d2+= Ne6 31.Qa1 Rdf8 32.Bh3 g4 33.Bg2 N6g5 34.Rc2 Nd2 35.Nd2+= d4 36.ed4 Bg2 37.dc5?? Bc5 38.Kg2–/+ Qb7 39.Kf1? Re8–+ 40.Be5 Qh1 41.Ke2 Qd5 42.Nc4 Qe4 43.Kd2 Nf3 (43...Nf3 44.Kc1 Ne5 45.Ne5 Re5 (45...Qe5?! 46.Qe5 Re5 47.Rd3–+) 46.Rd8 Bf8–+) 0–1. Seifert,J – Muller,Peter, corr DDR–M–870, 1987.

12.cd5= Nd5 13.a5 (13.Rc1 Rfd8+=) 13...Nc3 (13...Rfd8 14.Qd3=) 14.Bc3= Nf6 (14...Rfd8 15.ab6 ab6 16.Ra7+=) 15.ab6 (15.dc5 Bc5 16.Qa4 Ne4=) 15...ab6 16.Qb3 (16.dc5 Bc5 17.Qb1 Ne4=) 16...Ra8 (16...Ne4 17.Bb2+=) 17.Rfd1 (17.Qb2 Rfc8=) 17...Ne4 (17...Bd5 18.Bc4=) 18.Bb2 (18.dc5 bc5 19.Bb2 Ra1 20.Ba1 Rd8=) 18...Ra1 19.Ra1 Ra8 (19...Rc8 20.Bd3=) 20.Ra8 Ba8 21.Qa4 Bd5 22.Qa1 (22.Bd3 f5=) 22...f6 23.Bd3 ½–½. Adam,Stefan – Lelgemann,Ludwig, corr DDR–M–551, 1974.

11.cd5 ed5 12.Qc2 c4 =.

11.Re1 dc4 12.Bc4 Rfd8 13.Rc1 cd4 14.Nd4 Nc5 =.

11.Re1 dc4 12.Bc4 Rfd8 13.dc5 Nc5=+ 14.Qe2 Rac8 (14...Nfe4 15.Qc2=+) 15.Red1 (15.Rac1 Nfe4=) 15...Ng4=+ 16.Rac1 (better is 16.e4!?=+) 16...Bf3–+ 17.Qf3 Qh4 (17...Nh2?! 18.Qh5 g6 19.Qe2=) 18.Rd4 Bh2 19.Kf1 Rd4 20.ed4 Be5! (21.g3 Nh2 22.Kg2 Nf3 23.gh4 Nd4–+ (< 23...Nh4 24.Kh3 Bf4 25.Rc2–+)) 0–1. Sternik,Ryszard – Baranowski,Tadeusz, corr XXXVII ch PL se, 1993.

11.a4 dc4 12.Nc4 Bc7 13.Rc1 Rfd8 14.Qb3 Bd5 15.Qa3 Ne4 16.Rfd1 Re8 17.Qa1 f6 18.Bd3 cd4 19.Be4 Be4 20.Ncd2 Bf3 21.Nf3 Rac8 22.Nd4 Bb8 23.Ba3 Qf7 24.Nc6 Kh8 25.Qd4 1–0. Mackiewicz – Olej, Sokolow Podlaski 1966.

11.Ne5 cd4 12.ed4 Rfc8 13.Rc1 a6 14.a4 ab5 15.ab5 Bb4 16.f4 Ra2 17.Qb3 Rca8 18.Ndf3 Rb2 19.Qb2 Ba3 20.Qb1 Bc1 21.Rc1 dc4 22.Nc4 Nd5 23.g3 Rc8 24.Nfe5 N7f6 25.Bf3 Rc7 26.f5 ef5 27.Qf5 Ne3 28.Qd3 Nc4 29.Rc4 Rc4 30.Qc4 Bf3 31.Nf3 Qe3 32.Kg2 g6 ½–½. Rudbeck,Joergen – Oksanen,Yrjoe, corr DEN–FIN, 2001.

10.Bc4 cd4 11.ed4 (11.Qd4 e5 12.Qh4 e4=) 11...Nb6 12.Bb3 (12.Bd3 Nbd5+=) 12...Rd8 (12...Bd7 13.Nc3+=) 13.Qe2 Nbd5 14.Ne5 Nf4 (14...Bd7 15.Nc3+=) 15.Qf3= N6d5 16.Nc3 Nc3 (16...a6 17.Rfc1=) 17.Bc3 Nd5 18.Bd5 Be5 (18...ed5 19.Ba5 Re8 20.Qd5=) 19.de5 Rd5 20.a4 b6 21.Rfd1 Bb7 22.Qe3 (22.Rd5 Bd5 23.Qg3 a6=) 22...Qd7 (22...Rad8 23.Rd5 Rd5 24.Qg3=) 23.Rd5 Qd5 24.f3 Rc8 25.Kf2 (25.Qd2 Rc5=) 25...h6 (25...Qb3 26.Bd2 Qb2=) 26.Bd2 (better is 26.Kg1!?=) 26...Rc2–/+ 27.Rd1 Qc4 28.Ra1 (28.Kg1 Qa4 29.Qd3 Bd5–+) 28...Qb4 29.Ke1 (29.Ke2!?–/+) 29...Qh4–+ 30.Kf1 Qh2 31.Ra3 (31.Kf2 Bd5–/+) 31...Bd5 32.Kf2 Qh4 (32...Qh1 33.Kg3–+) 33.Kg1–/+ Qc4 (33...Rb2 34.Ra1–/+) 34.Ra1 (34.Qd3 Qc5 35.Be3 Qc7–/+) 34...Kf8 (better is 34...Ra2 35.Ra2 Qa2–+) 35.Qf4? (better is 35.Ra3–/+) 35...Qe2–+ 36.Bb4 (36.Rc1 Rd2 37.Rc8 Ke7 38.Qb4 Kd7 39.Qd6 Kc8 40.Qf8 Kb7 41.Qe7 Kb8 42.Qd8 Kb7 43.Qe7 Ka8 44.Qf8 Kb7 45.Qe7=) 36...Kg8 37.Qg3 Qe3 38.Kh1 Rc4 (better is 38...Qd4 39.Rb1 Ba2–+) 39.Qe1 Qb3 (39...Qb3 40.Rb1 Qa4–+; 39...Qg5!? 40.Bd2 Qh5 41.Kg1 Bf3 42.Ra3–+) 0–1. Grund,Karl Heinz – Teipelke,Heiner, corr FRG jub40 qg25, 1986.

10.Bc4 Rd8 11.Nbd2 =.

10.Bc4 e5. Labahn,Wolfgang.

10.Nbd2 e5 11.Nc4 ed4 (11...cd4 12.Nd6 Qd6 13.ed4=) 12.Nd6+= Qd6 13.ed4 Re8 14.Rc1 (14.Re1 a6+=) 14...b6 15.dc5 (Opening the d–file gets White a lot of play) (15.Bc4 Qf4+=) 15...Qd1 16.Bd1 (< 16.Rcd1 Re2 17.Bf6 Nf6 (< 17...gf6 18.c6 Nf8 19.a4=+) 18.Rd8 Re8 19.Re8 Ne8–+) 16...bc5 (16...Nc5 17.Bf6 gf6 18.Nd4+=) 17.Bf6 gf6 18.Bb3 a6 (18...Bb7 19.Rfd1 Re7 20.Bd5 Bd5 21.Rd5+=) 19.ba6 (19.Bd5 Rb8 20.ba6 Ba6+/–) 19...Ba6 20.Rfd1 Bb5 (20...Re7 21.Bd5 Rc8 22.a4+=) 21.a4 Bc6 22.Rd6 Rec8 23.Nd2 Kf8 24.Nc4 Rc7 (24...Ke7 25.f4+/–) 25.a5 Bb5 26.Ra1 Kg7 (26...Rca7 27.f4+/–) 27.f4 Rca7 ½–½. Trokenheim,Marek – Bendig,Frank, corr 2.KGP V 5, 1993.

10.Nfd2 Nb6 11.a4 cd4 12.Bd4 Rd8 13.Bb6 (13.a5 Nbd5=+) 13...ab6 14.Qc2 Qc7 15.h3 Bd7 (15...Be5 16.Ra3=) 16.Nc3 (16.Qc4 Qc5 17.Nf3 Ra5=) 16...Nd5 17.Nc4 (17.Bc4? Nc3 18.Qc3 Bb5 19.ab5 Bh2 20.Kh1 Be5 21.Ra8 Bc3 22.Rd8 Qd8–+) 17...Be7 18.e4 Nf4 (18...Nb4 19.Qb2=) 19.Rfd1 (19.e5 Bb4 20.Ne4 Ne2 21.Qe2 Bc8+/–) 19...Ne2 (19...Rac8 20.Bf1=) 20.Ne2 (20.Qe2 Rac8 21.Rd4 Bc5=) 20...Rac8 (20...Bf6 21.Rac1=) 21.Rac1 Bg5 22.f4 Bf4 23.Nf4 Qf4 24.Qf2 Qg5 25.Qb6 Be8 (25...e5 26.Rc3= (26.Qb7?? Bh3 27.Rd8 Rd8–+)) 26.Qe3+= Rd1 27.Rd1 Qe3 28.Ne3 Ra8 29.Rd4 f6 30.Kf2 Kf8 31.Rc4 h5 (31...Bg6 32.g4+=) 32.g3 Ke7 33.Ke2 (33.Rc7 Kf8+=) 33...Kd6 34.Kd3 (34.Kd2 Bf7=) ½–½. Mehlhorn,U – Mehaux,H, H–2077–D, 2000.

11.a4 (idea a5+=). Labahn,Wolfgang.

11.dc5 Bc5 12.Nc4 Nc4 13.Bc4 b6 (13...a6 14.ba6 ba6 15.Bd3+=) 14.Ne5 Bb7 15.Qa4 (15.Nc6 Bc6 16.bc6 Ba3 17.Ba3 Qa3+=) 15...Qc7 (15...Rfc8 16.Rfd1+=) 16.Rfd1 (16.Rfc1 Rfd8+=) 16...Rad8 (16...Bd6 17.f4=) 17.Bb3 (17.Bd3 Rd5 18.Nc6 Bc6 19.Bf6 gf6 20.bc6 Rfd8+=) 17...Nd5 (17...Rd1 18.Rd1 Bd6 A) worse is 19.Qa7 Ra8 (19...Be5?! 20.Be5 Qe5 21.Qb7=) 20.Qb7 Qb7 21.Rd6 Qe4–/+; B) 19.Rc1=) 18.Nd3 (18.Rac1 Ne3 19.fe3 Be3 20.Kh1 Bc1 21.Rc1 Qe7+=) 18...Bd6 19.g3 (better is 19.Rac1 Bh2 20.Kh1+=) 19...Ne3 (better is 19...Nc3 20.Bc3 Qc3 21.Qa7 Bf3=) 20.fe3+/– Bg3 21.Qg4 (21.hg3 Qg3) 21...Bh2 22.Kf2 f5 23.Be6 (23.Qg5 h6 24.Qg6 Bd5+/–) 23...Kh8+= 24.Qg5 (24.Bf5 Rd3 25.Rac1 Rf5 26.Ke2 Re3 27.Ke3 Qe7 28.Kd3 Qd7 29.Kc2 Rf2 30.Kb1 Rb2 (30...Qg4?? 31.Rd8 Rf8 32.Rf8) 31.Kb2 Qb5 (31...Qg4 32.Rd8) 32.Ka3 h6=) 24...Rde8? (better is 24...Rd3 25.Qg7 Qg7 26.Bg7 Kg7 27.Rd3 Kf6+=) 25.Rac1+– Qg3 26.Qg3 Bg3 27.Kg3 Re6 28.Kf2 Rh6 29.Be5 Kg8 30.Nf4 (30.Nf4 Rf7 31.Rd8 Rf8 32.Rf8 Kf8 33.Rc7+–) 1–0. Hess,H – Larrass,I, corr ICCF EU/M70 (year?).

11.Bc3 cd4 12.ed4 Nb6 13.Qb3 Bd7 14.Ne5 Nbd5 15.Rac1 =+.

11.Bc3 cd4 12.ed4 Nb6 13.Qb3 Bd7 14.Ne5 Rfd8 15.Ba5 Rdc8 (15...Bc7 16.Rac1 Be8 17.Ndf3=) 16.Bf3 Nbd5 17.Ndc4 Bc7 18.Bd2 Ne8 (18...h6 19.Rfe1=) 19.Rac1 (19.Ne3 Nef6+=) 19...a6 20.Nd7 Qd7 21.a4 (21.b6 Bd6+=) 21...ab5= 22.ab5 Nd6 23.b6 (23.Bd5 ed5 24.Ne3 Nb5 (24...Qb5?! 25.Qb5 Nb5 26.Nd5=) 25.Qd5 Rd8 26.Qd7 Rd7=) 23...Nc4=+ 24.Rc4 Bd6 (24...Nb6 25.Rb4 Ra6 26.Be2=+) ½–½. Labahn,Wolfgang – Schumacher,K, corr, 1989.

11.Bc3 cd4 12.Nd4 =.

11.Bc3 Nd5 12.Bb2 cd4 13.ed4 +=.

11.Nc4 Bc7 12.Ba3 Nc5 13.ed4 b6 +–.

11.Nc4 Bc7 12.Ba3 Qd8? 13.Bf8+– Kf8 (13...Qf8 14.Nd4 e5 15.Nf5+–) 14.ed4 (14.Qd4 Kg8+–) 14...Nb6 (14...Nd5 15.Nce5+–) 15.Qb3 (15.Nce5 Nbd5+–) 15...Nc4 16.Bc4 b6 17.Rfd1 Bb7 18.Ne5 Nd5 19.Bd5 (19.Qf3 Qe8+–) 19...Bd5+– 20.Qa3 Kg8 21.Rac1 Bd6 22.Qe3 (22.Qa6 h6+–) 22...Ba2 23.Nc4 (23.Qf3!? f6 24.Nc4 Bc4 25.Rc4+–) 23...Bc4+= 24.Rc4 Qh4 25.g3 Qh5 26.Rdc1 h6 (26...Qb5 27.Rc8 Rc8 28.Rc8 Bf8+–) 27.Rc8 Rc8 28.Rc8 Kh7 29.Qd3 g6 (29...Qg6 30.Qg6 Kg6 31.Ra8+–) 30.Qc4 (30.Ra8 Qd5 31.Ra7 Kg7+–) 30...Qf3 (30...Qd1 31.Kg2+=) 31.Rd8 (31.Qa4 Kg7+–) 31...Ba3 (31...Qd1 32.Kg2 Be7+–) 32.Rd7 Qf6 33.Ra7 Bb2 34.Rd7 Kg7 35.Qb4 Ba1 36.Qd6 h5 (36...Bc3 37.Qb6 Qf5 38.Qc6+–) 37.Rd8 g5 (37...Bc3 38.Qb6 Be1 39.f4+–) 38.Qf8 Kg6 39.Qg8 (39.d5 ed5 40.Rd6 g4+–) 39...Kf5 (better 39...Qg7+–) 40.Rd7 Kg4 41.Qh7 (better 41.Rf7 Qh6+–) 41...Qf5? (41...Qg6 42.Qh8 Qb1 43.Kg2 Qe4 44.Kf1 Qd3 45.Kg2 Qf3 46.Kf1 Kh3–+) 42.h3! (42.h3 Kf3 43.Rf7+–) 1–0. Labahn,Wolfgang – Schwarzenberg,Joseph, Paderborn GER, 1989.

11.Nc4 e5 12.Nd6 Qd6 13.a4 a5 14.Ba3 Nc5 15.ed4 ed4 16.Nd4 Bd7 (16...Rd8 17.Re1+=) 17.Rc1 Rac8 (better is 17...Rfc8!?+/–) 18.Nc6!+– Qd1 (18...Qc6 19.bc6) 19.Ne7 (19.Rcd1?! Bc6 20.bc6 Rc6=; 19.Rfd1?! Rfe8 20.Bc5 bc6+=) 19...Kh8 20.Rfd1 (20.Rcd1?! Na4 21.Nc8 Rc8+=; 20.Bd1?! Nd3 21.Rc8 Rc8 22.Nc8 Bc8+–) 20...Nb3 21.Rc8 (21.Nc8?! Nc1 22.Bf8 Ne2 23.Kf1 Nc3+/–) 21...Bc8 22.Ng6! fg6 (22...hg6 23.Bf8) 23.Bf8 Nd4 (23...Be6+–) 24.Rd4 Nd7 (24...Be6 25.Rd8+–) 25.Bg4 (25...Nf8 26.Bc8+–) 1–0. Stabenow,Juergen – Fuchs, corr SOK–87–13, 1988.

11.Nc4 e5 12.Nd6 Qd6 13.a4 a5 14.ed4 e4 15.Ba3 Qb6 +=.

11.Nc4 e5 12.Nd6 Qd6 13.a4 Rd8 14.ed4 e4 15.Ne5 =.

10.ed4 dc4 11.Nbd2 c3 12.Bc3 a6 13.a4 Nd5 14.Bb2 Bb4 15.Qc2 b6 6.Bd3 h5 (16...h6 17.Nc4=+) 17.Bh7 Kh8 18.Bd3 Bb7 19.Rfc1 (19.ba6 Ba6 20.Ba6 Ra6=) 19...ab5 20.Bb5 Kg8 (20...Rac8 21.Qd3=+) 21.Nc4 Rfc8 22.Qd1 Rc7 23.Bd7 (23.g3 Rac8=+) 23...Qd7 24.Nfe5 Qd8 25.Qh5 Rac8 26.Qg4 (26.Ba3 Nf4 27.Qg4 Ba3 28.Ra3 Qd5–+) 26...Qe8 27.Ne3 (better 27.Na3!? Qa4 28.Rc7 Rc7 29.Qg3–/+) 27...Ne3–+ 28.fe3 Rc2 29.Rc2 Rc2 30.Nd3?? (better 30.d5 Rb2 31.Nd3 ed5 32.Nb2 Qe3 33.Kh1–/+) 30...Rg2–+ 31.Qg2 Bg2 32.Nb4 Qe7 33.Bc3 (33.Kg2 Qb4 34.Ba3–+) 33...Bh3 34.e4 (34.Nd3 Qg5 35.Kf2 Qg2 36.Ke1–+) 34...Qf6 35.Nd3 Qf3 (35...Qf3 36.Nf4 Qe3 37.Kh1 Qf4 38.Bb2 Qe4 39.Kg1 Qg2) 0–1. GuestWXSH – GuestCTXG, freechess.org, 2019.

10.ed4 e5? 11.c5 Bc7 12.Ba3 +–. Labahn.

10.Qd4 e5 =.

10.Nd4 Nb6 11.cd5 =+.

11.a4 Bb7 12.Ne5 +=.

11.a4 dc4 12.Na3? c3 13.Bc1 Nd5 –/+.

11.a4 dc4 12.Nbd2 Bb7 13.Nc4 Bb4 14.Nfe5 Ne5 (14...Nd5 15.Bf3 +=) 15.de5 Nd5 16.Ba3 Nc3 17.Qc2 Ne2 18.Qe2 +=.

11.a4 dc4 12.Nbd2 Bb7 13.Nc4 Bc7?? 14.Ba3+/– Qd8 15.Bf8 Nf8 16.Nfe5 N8d7 17.Bf3 Nd5 18.Qb3 N7f6 (18...Qh4 19.Rfc1 Rd8 20.Qd3+/–) 19.Rfc1 Rc8 20.Rc2 Qe7 21.Rac1 Bb8 (21...Qd8 22.Qb2+–) 22.a5 Ne8 (22...Qd8 23.ab6 ab6 24.Nb6 Rc2 25.Qc2+– (< 25.Rc2 Qb6 26.Qb2 Qd6–/+)) 23.a6 Ba8 24.Qa3 (24.Ne3!? Rc2 25.Rc2 Be5 26.de5 Ne3 27.Qe3 Bf3 28.gf3 Qd7+–) 24...Qh4 25.g3 Qd4 (better is 25...Qd8+–) 26.Nd7 (26...Nec7 27.Rd1 Nb5 28.Rd4 Na3 29.Na3 Rc2 30.Nc2+– (30.Nb8?! Rc3 31.Rc4 Rc4 32.Nc4 f6+–)) 1–0. Labahn,Wolfgang – Van Gompel,H, corr ICCF TT–4–90, 1991.

11.a4 dc4 12.Nbd2 c3!? 13.Bc3 Nd5 14.Bb2 Nf4 (14...N7f6 15.Nc4 Bb4 16.Nfe5 Bb7 17.Rc1 +=) 15.Nc4 Bb4 16.Nfe5 Ne2 17.Qe2 Bb7 (17...Ne5 18.de5 Bb7 19.Ba3 +=) 18.Nd3 +/–.

11.Ne5 dc4 12.Nc6 Qe8 13.Bc4 a6 =.