Etude d'une partie Larsen

Gras et souligné = partie principale
Gras = variantes principales
Italiques = variantes secondaires

[3.g3 c6
(3...Cd7 4.Fg2 e6 5.d3 Cgf6 6.Cd2 Fd6 7.Cgf3 De7 8.0-0 0-0 9.c4 c6 10.Tc1 Tfd8 11.Tc2 a5 12.Da1 a4 13.bxa4 Txa4 14.Tb1 Tda8 15.Fc3 Fb4 16.h3 Fxf3 17.Fxf3 Fxc3 18.Dxc3 Cc5 19.cxd5 Txa2 20.Txa2 Txa2 21.dxc6 Cd5 22.Fxd5 exd5 23.cxb7 Cxb7 24.Dc8++- Vokac,M-Jurek,J/Sumperk ch-CS(2)/1984/1-0 (31)) 4.Fg2 Cd7 5.Cf3 e6 6.d4 Fxf3 7.Fxf3 f5 8.g4 Cgf6 9.e3 Ce4 10.gxf5 exf5 11.Fxe4 fxe4 12.Dh5+ g6 13.Dh3 Cf6 14.c4 Dd7 15.Dxd7+ Rxd7 16.Re2 Fb4 17.Fc3 Fd6 18.Cd2 Taf8 19.Tag1 Tf7 20.Tg2 b5 21.c5 Fc7 22.a3 a5 23.Tf1 a4 24.b4=+ Minasian,A-Lobron,E/Cannes op/1992/0-1 (52);
3.f3 Fh5 (3...Ff5 4.e3 Cf6 5.g4 Fg6 6.h4 h5 7.g5 Cfd7 8.f4 e6 9.Cf3 c5 10.Cc3 Cc6 11.Fd3 Fxd3 12.cxd3 Cb4 13.Db1 Db6 14.0-0 Da6 15.Ce1 d4 16.Ce4 f5 17.gxf6 gxf6 18.exd4 Tg8+ 19.Rf2 Tg4 20.dxc5 Txf4+ Welling,G-Davies,N/Copenhagen op/1988/0-1 (21))
4.Ch3 (4.e3=) 4...e6 5.Cf4 Fg6 6.g3 Cf6 7.Cxg6 hxg6 8.Fg2 Fd6 9.0-0 (9.d4) 9...Cbd7 10.c4 De7 11.d4 c6 12.cxd5? Cxd5! 13.Dd2 Txh2!-+ 14.f4 Th7 15.e4 Fb4 16.De2 Cc7 17.Cd2 g5 18.f5 exf5 19.Txf5 g6 20.Tf2 0-0-0 21.a3 Fxd2 22.Dxd2 Rb8 23.a4 f6 24.b4 Ibragimov,I-Novikov,I/URS-ch58/1991/0-1 (39);
3.d3 Cc6!? (3...e6=) 4.h3 Fh5 5.g4 Fg6 6.Fg2 h5 (6...e5!?) 7.c4 e6 8.cxd5 exd5 9.Cc3 d4 10.Cb5 hxg4? 11.Dc1! Cge7 12.Df4 Tc8 13.hxg4 Txh1 14.Fxh1 f6 15.Rf1 Dd7 16.Cxd4 Ce5 17.Fxb7 Tb8 18.Fe4 Cxg4 19.Tc1 Ce5 20.Cdf3 Cxf3 21.Fxf3 Rd8 22.Fe5 Re8 Vasiukov,E-Tseitlin,MS/Voskresensk/1990/1-0 (23);
3.Dc1 Cd7 4.e3 e5 5.Ce2 Cgf6 6.h3 Ff5 7.d4 Fd6 8.Cd2 0-0 9.g4 Fg6 10.Fg2 Te8 11.dxe5 Cxe5 12.f4 Cexg4 13.hxg4 Cxg4 14.Cf1 Fb4+ 15.c3 Fc5 16.Th3 Ff5 17.b4 Cxe3 18.Txe3 Dh4+ 19.Rd2 Fxe3+ 20.Cxe3 Fg4 21.Cxg4 Dxg4 22.Df1 a5 23.a3 Ta6 24.Df3+- Minasian,A-Aleksandrov,A/URS-chJ Kherson/1991/1-0 (37);
3.c4 c6 4.Dc2 e6 5.e3 Cf6 6.d4 Cbd7 7.Fe2 Fxe2 8.Cxe2 Fd6 9.Cbc3 0-0 10.0-0 De7 11.Tac1 Tfc8 12.e4 Cxe4 13.Cxe4 dxe4 14.Dxe4 Cf6 15.Df3 Fa3 16.Fxa3 Dxa3 17.Cc3 Td8 18.Tcd1 Da5 19.Tfe1 Td7 20.Te5 Dd8 21.d5 cxd5 22.cxd5 Dc7 23.Tee1 Schaefer,N-Schoebel,W/Hessen-ch (2)/1989/0.5 (23)]
3...Fh5 4.Cf3 [4.g3 e6 (4...c6 5.Fg2 Cd7 6.Cf3 Cgf6 7.d3 (7.0-0 e6 8.d3 Fc5 9.Cbd2 0-0 10.e4 a5 11.e5 Ce8 12.a4 Cc7 13.De2 b5 14.g4 Fg6 15.Cd4 bxa4!? 16.bxa4 Fxd4!? 17.Fxd4 c5 18.Fb2 Tb8 19.Cb3 Fxd3 20.Dxd3 c4 21.De3 cxb3 22.cxb3 Adams,M-Anand,V/Las Palmas (7)/1993/0.5 (22)) 7...e6 8.Cbd2 Fc5 9.e4 dxe4 10.dxe4 e5 11.De2 0-0 12.0-0 Te8 13.a4 Fd4 14.c3 Fc5 15.b4 Ff8 16.a5 Dc7 17.g4 Fg6 18.Ch4 b5 19.Fa3 Tab8 20.Tfd1 c5 21.Cf1 Dc6 22.Cf5 h5 23.g5 Ch7 24.h4² Beim,V-Mikhalevski,V/ISL-ch (01)/1992/1-0 (58);
5.Fg2 Cf6 6.c4 c6 7.Cf3 Fe7 8.0-0 0-0 9.d3 a5 10.a3 Cbd7 11.Cbd2 Db6 12.Dc2 Tfd8 13.Fc3 Ce8 14.g4 Fg6 15.b4 axb4 16.axb4 Ff6 17.Fxf6 Cexf6 18.Dc3 Dc7 19.Tfc1 h6 20.Db2 Dd6 21.c5 Df8 22.Cb3 Txa1 23.Txa1 Ta8 24.Ce5² Bagirov,V-Timoshchenko,G/URS-ch/1978/0.5 (41);
4.d3 Cd7 (4...c5 5.Cd2 Cc6 6.Cgf3 f6 7.e3 e5 8.Fe2 Ff7 9.a3 Fd6 10.c4 Cge7 11.cxd5 Cxd5 12.Tc1 Tc8 13.Ce4 b6 14.d4 exd4 15.exd4 0-0 16.Cxd6 Dxd6 17.dxc5 bxc5 18.0-0 Tfd8 19.Dc2 Cb6 20.Fa6 Tc7 21.Tfd1 Df8 22.Fd3 Rh8 23.Fxh7 Txd1+ 24.Txd1± Karlsson,L-Nun,Jo/Eksjo/1981/1-0 (27); 4...e6 5.Cd2 Cf6 6.Cgf3 Cbd7 7.e3 a5 8.a3 c6 9.g4 Fg6 10.Ch4 Db6 11.Fg2 a4 12.b4 c5 13.Cxg6 hxg6 14.c3 Ce5 15.De2 g5 16.c4 Cg6 17.d4 cxb4 18.c5 Da5 19.axb4 Dxb4 20.Tb1 Ta7 21.0-0 Fe7 22.Fa3 Dxa3 23.Db5+ Cd7 24.Tfc1 µ Nikolac,J-Kovacevic,Vlado/Maribor/1980/0-1 (61))
5.c4 (5.g4 Fg6 6.Cf3 e6 7.Fg2 c6 8.Cbd2 Cgf6 9.Ch4 Fc5 10.Cxg6 hxg6 11.e3 De7 12.a3 a5 13.c4 Fd6 14.De2 Fe5 15.d4 Fc7 16.f4 a4 17.b4 dxc4 18.Cxc4 Cd5 19.0-0 g5 20.Ce5 gxf4 21.exf4 Cxe5 22.fxe5 Dd7 23.Tf3 Fb6 24.Taf1= Rouneau,M-Todorov,O/Cappelle op (7)/1993/0.5
(41)) 5...c6 6.Cd2 e6 7.Cgf3 Cgf6 8.e3 Fd6 9.Fe2 0-0 10.g4 Fg6 11.Ch4 a5 12.Cxg6 fxg6 13.g5 Ce8 14.Fg4 Cc7 15.h4 a4 16.d4 c5 17.Cf3 cxd4 18.Cxd4 Cc5 19.Cf3 e5 20.Cxe5 De7 21.f4 dxc4 22.bxc4 Fxe5 23.fxe5 Ce4 24.a3 Kalantarian,N-Ivanov,V/URS-chT/1988/0-1 (25)]
4...Fxf3!= [4...Cd7 5.e3 c6 6.d3 Fxf3 7.Dxf3 Cgf6 8.g4 e5 9.g5 Cg8 10.h4 Fb4+ 11.Re2 Ce7 12.Fh3 Fd6 13.Cd2 Cc5 14.h5 Cc8 15.g6 De7 16.Tag1 fxg6 17.hxg6 h6 18.Df7+ Dxf7 19.gxf7+ Rxf7 20.f4 Te8 21.Fg4 Rg8 22.fxe5 Ff8 23.Txh6 Cb6 24.Ff5 Planinc,A-Hartoch,R/Wijk aan Zee/1973/1-0 (25)]
5.exf3
[5.gxf3]
5...Cf6 6.f4 e6 7.g3 g6 8.De2 Cbd7 [8...c6!?] 9.Fg2 c6 10.0-0 Fg7 11.d4 0-0 12.Td1 a5 13.a4 Db6 14.Cd2 Da6 15.De1 Tfc8 16.Cf3 b5 17.Ce5 b4 18.g4  g5+- 18...Db7 19.De2 Tab8 20.Te1 Te8 21.h4 h5 22.f3 c5 23.Tac1 Dc7 24.Rh1 Spraggett,K-Dorfman,J/France/1991/0-1

vers le début Larsen