CR15th-board 9, 01.05.2004
A03: Debiut Birda z 1...d5
1.f4 d5 2.Sf3 Sf6 3.b3 g6 4.Gb2 Gg7 5.e3 0-0 6.Gd3 c5 [6...a5 7.a4 Sa6 8.0-0 Sc5 9.Ge2 Gf5 10.Sh4 Gd7 11.Sa3 c6 12.c4 b6 13.Hc2 Wc8 14.f5 b5 15.fxg6 hxg6 16.axb5 Yueksel,A - Schnegelsberg,KH Baunatal 1998;
6...e6 7.0-0 c5 8.Sc3 b6 9.Se2 Gb7 10.Sg3 Sbd7 11.He2 Se4 12.Gxg7 Kxg7 13.c4 f5 14.Gxe4 dxe4 15.Sg5 Hf6 16.d3 Krjukova,E - Andreeva,O Serpukhov 2002;
6...Sc6 7.0-0 Sb4 8.Se5 Sd7 9.Hf3 Sxd3 10.cxd3 Sxe5 1/2-1/2 Schauer,G - Fischer,O GERtt 2003]
7.0-0 [7.Sc3 Sc6 8.0-0 - 7 0-0 Sc6 8 Sc3]
7...Sc6 [7...b6 8.Sc3 Gb7 9.Se2 Sbd7 10.Sg3 Se4 11.Gxg7 Kxg7 12.He1 Wc8 13.c4 Sdf6 14.Ge2 Sxg3 15.hxg3 h5 16.Se5 Sd7 17.Sf3 Eliseit,W - Schneider,B Brakel 1967;
7...Gg4 8.h3 Gxf3 9.Hxf3 e6 10.g4 Sc6 11.Sc3 Sb4 12.Kh1 a6 13.f5 Sxd3 14.cxd3 exf5 15.gxf5 Hd6 16.Se2 Sh5 17.Gxg7 Piasecki,P - Mackow,P Poznan 2003]
8.Gb5 [8.Sc3 a6 (8...e5 9.Sxe5 Sxe5 10.fxe5 Sg4 11.Wb1 d4 12.Se4 Gxe5 13.h3 dxe3 14.hxg4 Gxb2 15.dxe3 Ge5 16.g5 b6 17.He1 Gf5 Bearup,P - Anderson Smith,WT Adelaide 2003) 9.a3 b5 10.a4 b4 11.Se2 Gg4 12.Sg3 e5 13.fxe5 Sd7 14.Ge2 Gxf3 15.gxf3 Sdxe5 16.Wb1 Wa7 17.f4 Sd7 Machado,HA - Toro Sanchez,B San Pedro de Jujuy 1981;
8.a3 b6 (8...Gg4 9.f5 Hd7 10.h3 Gxf5 11.Gxf5 Hxf5 12.d3 He6 13.He2 Sh5 14.Gxg7 Kxg7 15.Hf2 Hd6 16.Sbd2 Hg3 17.He2 Sf6 Ullmann,J - Lausch,S Leipzig 1998) 9.Se5 Gb7 10.Sxc6 Gxc6 11.Ge5 Hd7 12.Ge2 d4 13.exd4 cxd4 14.Gxf6 Gxf6 15.d3 e5 16.fxe5 Gxe5 17.Gf3 Gxf3 Harmsen,J - Van Parreren,H Amsterdam 1985;
8.Se5 Hc7 9.Gb5 Sg4 (9...a6 10.Ge2 b5 (10...Se8 11.d4 cxd4 12.exd4 Sd6 13.Sd2 Sf5 14.Wf3 Sfxd4 15.Wd3 Hb6 16.Kh1 Gf5 17.Gxd4 Sxd4 ) 11.c4 bxc4 12.bxc4 e6 13.Sxc6 Hxc6 14.Sc3 Wb8 15.Hc2 d4 16.Sd1 Wd8 17.Sf2 Se8 ; 9...Se4 10.Gxc6 bxc6 11.d3 Sd6 12.Sd2 f6 (12...Sf5 13.He2 d4 14.Sdc4 Ge6 15.e4 Sd6 16.Sxd6 exd6 17.Sf3 Wae8 ) 13.Sef3 a5 14.a4 We8 15.He2 Sf5 16.e4 Sh6 17.e5 Gg4 ; 9...Sxe5 10.Gxe5 Hb6 11.Ge2 Se8 (11...Wd8 12.Gf3 Se8 13.Gxg7 Kxg7 (13...Sxg7 - 11 ...Se8 12 Gxg7 Sxg7 13 Gf3 Wd8) 14.He1 Hf6 15.Sc3 Sc7 16.Sa4 b6 17.c4 Gb7 ) 12.Gxg7 Sxg7 13.Gf3 Wd8 14.He2 (14.Sc3 Ge6 15.He2 Wac8 16.Kh1 d4 17.Sa4 Hc7 ) 14...Se8 15.Sc3 Sf6 16.Kh1 d4 17.Sa4 Hc7 ) 10.Gxc6 (10.Sd3 Sd8 (10...d4 11.h3 Sh6 12.Gxc6 Hxc6 13.Se5 Hd5 14.Hf3 Hxf3 15.Sxf3 Wd8 16.exd4 Sf5 17.g4 Sxd4 ) 11.Gxg7 Kxg7 12.h3 Sf6 13.Se5 c4 14.bxc4 a6 15.Ga4 dxc4 16.c3 b5 17.Gc2 Gb7 Fahner,K - Schneider Zinner,H AUTtt 1996) 10...Sxe5 11.fxe5 Gxe5 12.Gxe5 Hxe5 13.Gxb7 Gxb7 14.Sa3 Wad8 15.Wf2 f5 16.c3 d4 17.exd4 cxd4 ; 8.Hc1 b6 9.Se5 Gb7 10.a3 d4 11.Sxc6 Gxc6 12.He1 Hd5 13.He2 Wad8 14.a4 Wfe8 15.f5 e6 16.Gc4 He4 17.fxe6 fxe6 Schwarm,GCh - Schuele,H GERtt 1995]
8...Hb6 [8...Gg4 9.Hc1 (9.Gxc6 bxc6 10.d3 (10.h3 Gc8 11.Se5 Hc7 12.Sc3 Sd7 13.Sxd7 Hxd7 14.Hc1 Ga6 15.Wf2 c4 16.Sa4 Wad8 17.Gxg7 Kxg7 18.Sc5 ; 10.Ge5 We8 (10...Sd7 11.Gxg7 Kxg7 12.He1 Gxf3 13.Wxf3 f5 14.d3 e6 15.Hc3+ Hf6 16.Hxf6+ Sxf6 17.Sd2 a5 18.a4 ) ) 10...d4 (10...Hb6 11.h3 (11.He1 Gxf3 12.Wxf3 Sh5 13.Gxg7 Kxg7 14.Sd2 e6 15.Wh3 Wh8 16.g4 Sf6 17.g5 Sg8 18.Sf3 ; 11.He2 c4 12.Sbd2 cxd3 13.cxd3 Ha6 14.h3 Gf5 15.Se1 Se4 16.Gxg7 Kxg7 17.Hd1 Sc5 18.d4 ) 11...Gc8 (11...Gxf3 12.Hxf3 c4 13.dxc4 dxc4 14.Sd2 cxb3 15.Sc4 Hb5 16.axb3 a5 17.Wa4 Hf5 18.Gxf6 ) 12.He2 a5 13.a4 Ga6 14.Sbd2 c4 15.dxc4 dxc4 16.Sxc4 Gxc4 17.Hxc4 Hxe3+ 18.Kh2 ; 10...Sd7 11.Gxg7 Kxg7 12.Sbd2 e5 13.h3 Gxf3 14.Hxf3 f5 15.fxe5 Sxe5 16.Hg3 Sd7 17.e4 dxe4 18.dxe4 ) 11.e4 Hc7 (11...e5 12.fxe5 Sd7 13.h3 Gxf3 14.Hxf3 Sxe5 15.Hg3 He7 16.Sd2 a5 17.a4 Wae8 18.Sf3 ) 12.Gc1 Gh6 13.g3 Hc8 14.He1 Gh3 15.Sbd2 Gxf1 16.Hxf1 Sh5 17.Sc4 f6 18.Hg2 ; 9.h3 Gxf3 (9...Hb6 10.hxg4 Hxb5 11.g5 Se4 12.Gxg7 Kxg7 13.d3 Sg3 14.We1 Hb6 15.Kf2 Sf5 16.g4 Sd6 17.Wh1 f5 18.Hg1 ) 10.Hxf3 Se4 (10...a6 11.Gxc6 bxc6 12.d3 Hb6 13.Sd2 a5 14.a4 Wfe8 15.Kh1 Wad8 16.Ge5 Hb4 17.Wf2 Hb7 18.g4 ) 11.Gxg7 Kxg7 12.d3 Sd6 13.Gxc6 bxc6 14.Sd2 Ha5 15.Hf2 c4 16.Sf3 cxd3 17.cxd3 c5 18.Hb2+ ) 9...Gxf3 10.Wxf3 Hb6 11.Gf1 Wad8 12.Sc3 Se4 13.Sb1 d4 14.d3 Sf6 15.e4 e5 16.f5 Sg4 17.Hg5 Sf6 18.Hh4 ;
8...Hc7 - A03; A40; A85;
8...a6 9.Gxc6 bxc6 10.He2 (10.He1 a5 11.Se5 Sg4 (11...Hb6 12.Sc3 a4 13.Ga3 axb3 14.axb3 Ga6 15.Sa4 Hc7 16.d3 c4 17.Sc5 cxd3 18.cxd3 Faust,MM - Tomann,D Dortmund 1993) 12.d4 Hb6 13.Sc3 a4 14.dxc5 Hb8 15.Sxc6 Hb7 16.Sd4 a3 17.Gc1 e5 18.fxe5 ; 10.Se5 Hd6 (10...Hc7 11.Hf3 (11.Hc1 Sd7 12.Sxd7 Gxd7 13.Gxg7 Kxg7 14.Ha3 Hd6 15.Sc3 c4 (15...d4? 16.Se4+- ; 15...Wfb8!? 16.Sa4 Wb5 ) 16.Hb2 Kg8 17.bxc4 Wfb8 18.Hc1 ) 11...Gf5 12.c4 Sg4 13.d4 Sxe5 14.fxe5 Wfd8 15.Sd2 Wab8 16.Gc3 cxd4 17.exd4 c5 18.cxd5 ) 11.Sc3 (11.Hc1 a5 12.a4 Sd7 13.Sxd7 Gxb2 14.Hxb2 Gxd7 15.d3 f6 16.Sd2 Wae8 17.Wae1 e5 18.fxe5 ) 11...Sd7 12.Sf3 Sb6 13.He1 c4 14.Hh4 Gf5 15.Wac1 cxb3 16.cxb3 Gd3 17.Wf2 Sd7 18.Sg5 ) 10...a5 11.a4 Hb6 12.d3 Ga6 13.Sbd2 Wfb8 (13...c4 14.Ge5 cxd3 15.cxd3 c5 16.Wab1 Wac8 17.h3 Wfd8 18.Kh2 Heinrich,K - Fuchs,H Passau 1997) 14.Se5 Hc7 15.Wfe1 Sd7 16.Sxd7 Hxd7 17.Gxg7 Kxg7 18.e4 ;
8...d4 - A04; A10; A80; A84; A85;
8...Gd7 - A03; A40; A85;
8...Gf5 9.Gxc6 bxc6 10.d3 (10.Ge5 We8 11.Sc3 Sd7 12.Gxg7 Kxg7 13.d3 Ha5 14.He1 Gg4 15.Se5 Sxe5 16.fxe5 Wad8 17.Sa4 Hxe1 18.Waxe1 ) 10...Hb6 (10...We8 11.He2 Hb6 12.c4 Wad8 13.Wd1 dxc4 14.dxc4 Wxd1+ 15.Hxd1 Wd8 16.He1 Sg4 17.Gxg7 Kxg7 18.h3 ) 11.He2 Wfd8 12.Sbd2 a5 13.Kh1 a4 14.e4 Gg4 15.Hd1 Wa7 16.f5 Sxe4 17.Gxg7 Sxd2 18.Hxd2 ;
8...Sa5 9.Ge2 Sc6 10.Gb5 - 8 Gb5;
8...We8 9.Gxc6 ( 9.He1 Hb6 10.Gxc6 bxc6 11.d3 a5 12.Sbd2 a4 13.Se5 Sg4 14.Hg3 c4 15.dxc4 Hxe3+ 16.Hxe3 Sxe3 17.Wf3 Sxc2 18.Wc1 ) 9...bxc6 10.He2 a5 11.d3 Ga6 12.c4 Sd7 13.Gxg7 Kxg7 14.Hf2 f6 15.Sc3 e6 16.Sa4 He7 17.e4 Wf8 18.Hg3 ;
8...Se4 9.Gxg7 Kxg7 10.d3 Sd6 11.Gxc6 bxc6 12.He1 f6 13.e4 a5 14.Sc3 e6 15.Wd1 d4 16.Sa4 Sb7 17.Hg3 Gd7 18.h4 ]
9.Gxc6 Hxc6 [9...bxc6 10.He1 (10.Sc3 Ga6 11.We1 Sd7 12.Se5 Sxe5 13.fxe5 c4 14.Sa4 Hb5 15.Gd4 Gc8 16.Wb1 f6 17.exf6 Gxf6 18.Sc3 Ha6 19.bxc4 ; 10.Se5 Ga6 (10...Sg4 11.He1 c4 12.Gc3 Sxe5 13.fxe5 c5 14.Sa3 Ha6 15.Hc1 Wd8 16.Hb2 Ge6 17.Wad1 d4 18.exd4 cxd4 19.Gxd4 Lehwalder,J - Bletz,H GERtt 1999; 10...a5 11.Sc3 (11.a4 c4 12.Ga3 cxb3 13.Gxe7 We8 14.Gxf6 Gxf6 15.d4 bxc2 16.Hxc2 Gf5 17.Hc3 Wac8 18.Wa3 Ge7 19.Wb3 ) 11...c4 12.Sa4 Hb5 13.Gd4 Se4 14.d3 cxd3 15.cxd3 c5 16.Gb2 Sd6 17.Wc1 f6 18.Wxc5 Hb7 19.Sc6 ) 11.d3 c4 12.We1 (12.Hf3 cxb3 13.axb3 Gc8 14.Sc3 Se8 15.Kh1 Sd6 16.Ga3 Ge6 17.Sa4 Hc7 18.Wae1 h5 19.Gc5 ) 12...cxd3 13.cxd3 Wfd8 14.Sc3 Sd7 15.Sxd7 Wxd7 16.Sa4 Hb5 17.Gxg7 Kxg7 18.Wc1 Wd6 19.Sc5 Kuess,M - Nickl,K AUTtt 1996) 10...Ga6 11.d3 c4 12.Se5 Wfd8 13.Wf3 cxd3 14.cxd3 Sg4 15.d4 Sxe5 16.fxe5 c5 17.Sc3 cxd4 18.Sa4 Hb5 19.exd4 ]
10.d3 b5=/+ (10...b6 11.He1 (11.Sbd2 Gb7 12.He2 Wad8 13.a4 Hc8 (13...Wfe8 14.He1 d4 15.e4 Sg4 16.Sc4 f5 17.exf5 gxf5 18.Hg3 Hg6 19.Wae1 Gf6 ) 14.Ge5 Se8 15.Gxg7 Sxg7 16.e4 dxe4 17.Sxe4 Hg4 18.Sg3 Hxf4 19.Hxe7 Gxf3 ) 11...Gb7 12.Sbd2 (12.Ge5 c4 13.Sc3 Wac8 14.a4 cxd3 15.cxd3 d4 16.Gxd4 He6 17.Wb1 Sg4 18.Gxg7 Kxg7 19.e4 Hd6 ) 12...e6 (12...d4 13.Sc4 (13.e4 Sg4 14.Sc4 Hc7 15.Hh4 Sf6 16.a4 a6 17.Gc1 b5 18.Sce5 h6 19.Gd2 Hd6 ) 13...dxe3 14.Sxe3 Sh5 15.Gxg7 Sxg7 16.Se5 He6 17.Hf2 f6 18.S5c4 Sf5 19.Sxf5 gxf5 Navarro,P - Dominguez,L Lisbon 1999; 12...Wad8 13.Hh4 Wfe8 (13...d4 14.e4 Gc8 15.a4 Hc7 16.Sc4 a6 17.Gc1 Se8 18.Gd2 Sd6 19.g4 Sxc4 ) 14.Se5 Hc7 15.Sdf3 Wf8 (15...d4 16.e4 e6 17.Wae1 Wc8 18.Gc1 a5 19.We2 a4 ) 16.Wae1 h6 17.Ga1 Sd7 18.Sg4 h5 19.Sge5 Sxe5 ) 13.Hh4 Sd7 14.Gxg7 Kxg7 15.Se5 Hd6 16.Sdf3 f6 17.Sg4 h5 18.Sf2 Wae8 19.g4 Wh8 ; 10...Gg4 11.Sbd2 Wae8 (11...b5 - 10 ...b5 11 Sbd2 Gg4) 12.He1 Sd7 13.Gxg7 Kxg7 14.Hh4 Gxf3 15.Sxf3 e5 16.f5 Hf6 17.Hh3 Hxf5 18.Hxf5 gxf5 19.Sh4 f4 ; 10...a6 - A40; A84; A85; 10...Wd8 11.Sbd2 b6 12.He2 Gb7 13.Se5 He6 14.a4 Wac8 15.a5 b5 16.Sdf3 h6 17.Sh4 d4 18.e4 Sh5 19.Sg4 f5 ) 11.Sbd2 (11.He1 Gb7 (11...a5 12.a3 Gb7 13.Sbd2 a4 14.Se5 Hc7 15.Sdf3 Se8 16.Wc1 Sd6 17.b4 c4 18.Gd4 Gc8 19.h3 Sb7 ) 12.Sbd2 Wfd8 13.He2 d4 14.Se5 Hc7 15.e4 Sh5 16.Hf2 e6 17.g3 f5 18.Sef3 Sf6 19.e5 Sd5 ; 11.a4 b4 12.Sbd2 Ga6 13.Se5 Hc7 14.He2 Se8 (14...Wfe8 15.e4 dxe4 16.Sxe4 Sxe4 17.Hxe4 Gb7 18.He2 Wad8 19.Wae1 e6 ) 15.e4 e6 16.Wae1 Sd6 17.Wf3 dxe4 18.Sxe4 Sxe4 19.Hxe4 Gb7 ) 11...Gg4 (11...Gb7 12.He2 - 10 He2 b5 11 d3 Gb7 12 Sbd2; 11...Sg4?! 12.Gxg7 Sxe3 13.He2 Sxf1 14.Se5 Hc7 15.Gxf8 Sxd2 16.Gh6 f6 only 17.Hxd2 fxe5 18.fxe5 Hxe5 19.We1 ; 11...Ga6 12.Se5 Hc7 13.Wb1 c4 14.Sdf3 b4 15.He1 c3 16.Gc1 Sd7 17.Sxd7 Hxd7 18.a3 Hb7 19.axb4 Hxb4 ) 12.He1 (12.h3 Gxf3 13.Hxf3 Wac8 14.a4 a6 15.axb5 axb5 16.Ge5 c4 17.bxc4 bxc4 18.dxc4 dxc4 19.Wa7 Wfd8 ) 12...Gxf3 13.Sxf3 Sd7 (13...c4 14.Se5 Hc7 15.Gd4 Wfc8 16.Hh4 Sd7 17.Hxe7 Sxe5 18.Hxc7 Wxc7 19.Gxe5 Gxe5 ) 14.Gxg7 Kxg7 15.a4 b4 16.Wd1 a5 17.Wf2 Wae8 18.e4 d4 19.Hd2 f6 Durst,U - Limberg,S Bad Segeberg 2002;
10.c4 dxc4 11.bxc4 b6 12.Sc3 Gb7 13.He2 e6 14.d3 Wad8 15.Wad1 a6 16.Hc2 b5 17.Se5 Hb6 18.e4 b4 19.Sb1 Sd7 ; 10.He2 b5 (10...Gg4 11.d3 d4 (11...e6 12.Sbd2 Wac8 13.h3 Gxf3 14.Wxf3 Wfd8 15.Waf1 h5 16.He1 Hc7 17.Ge5 Ha5 18.a4 Se8 19.Hf2 f6 Anderberg,P - Bertram,I Leipzig 1998) 12.e4 (12.h3 Gxf3 13.Hxf3 Hxf3 14.Wxf3 dxe3 15.Sa3 Sd5 16.Gxg7 Kxg7 17.Kf1 a5 18.Sc4 a4 19.Sxe3 Sc3 ) 12...e5 13.fxe5 Sd7 14.h3 Ge6 15.Gc1 Sxe5 16.Sxe5 Gxe5 17.Gh6 Gg7 18.Gxg7 Kxg7 19.Sd2 Wae8 ; 10...b6 11.d3 Ga6 12.Sbd2 Wac8 13.Se5 Hc7 14.Wae1 d4 15.e4 Sh5 16.g3 Gxe5 17.fxe5 Hxe5 18.Sf3 Hc7 19.Gc1 e5 ) 11.d3 (11.a4 b4 12.d3 Gb7 13.Sbd2 Wac8 14.Wae1 Wfd8 15.Se5 Hc7 16.Sdf3 Se8 17.Sg5 Sd6 18.f5 Sxf5 19.Wxf5 f6 ) 11...Gb7 12.Sbd2 Wad8 (lepsze 12...Wfd8=/+ 13.Wfe1 Hb6 14.Kh1 d4 15.e4 Sg4 16.Sf1 Hc7 17.h3 Sf6 18.g3 ) 13.a4 b4 14.Wae1 Hc8 15.Ge5 (lepsze 15.e4 c4!? 16.bxc4! (16.dxc4?! dxe4 17.Sg5 h6 18.Gxf6 exf6 19.Sgxe4 Wfe8 ) 16...dxe4 17.dxe4 Sh5!? 18.Gxg7 Sxf4 19.He3 Hg4 ) 15...Wfe8 16.Wc1 (16.Hf2 Sg4=/+ ; 16.h3!? Ga6! /\ c4 (16...Sh5?! 17.Hf2 f6 18.Ga1+/= ) ) 16...Hd7 17.c3?! (lepsze 17.Wce1=/+ ) 17...Wc8! 18.c4 (18.cxb4 cxb4 19.Gd4 Ga6 ) 18...Wed8 19.cxd5? (19.Wfd1! only 19...dxc4 ) 19...Hxd5-/+ ;
10.Hc1 b6 11.d3 (11.Se5 Hc7 12.d3 Se8 13.Sd2 Sd6 14.Sef3 Sf5 (14...f6 15.He1 Ga6 16.c4 dxc4 17.dxc4 Gb7 18.He2 Hc6 19.Wfd1 Wad8 ) 15.Gxg7 Kxg7 16.We1 Gb7 17.Sf1 h5 18.Sg3 Sxg3 19.hxg3 Hd6 ) 11...Gb7 12.Sbd2 Wad8 13.Ge5 Se8 14.Gxg7 Sxg7 15.He1 Sf5 16.g4 Sd6 17.a4 f6 18.Hg3 Sf7 19.Wae1 Wde8 ]
10...Hc7 [10...He6 11.Sc3 Sg4 12.Sd3 d4 13.exd4 Gxd4+ 14.Kh1 Hc6 15.Se2 Gxb2 16.Sxb2 b6 17.Sg3 h5 18.Hf3 Hxf3 19.gxf3 Gb7 20.Wae1 ]
11.h3 b6 12.d3 Gb7 13.Sd2 Wfd8 14.Sdf3 Sd7 15.He2 Sxe5 16.Sxe5 Wac8 17.Wac1 c4 18.bxc4 dxc4 19.Sxc4 Gd5 20.Gxg7 Kxg7 ]
11...Wd8 [11...a6 12.a4 (12.Hf3 e6 (12...Ge6 13.Se2 Se4 14.Wfd1 f6 (14...h5 15.d3 Sg5 16.Hg3 Sh7 17.Wab1 Wac8 18.Wf1 Sf6 19.h3 c4 20.Sd4 Gd7 21.bxc4 ) 15.Sd3 Gf7 16.Sf2 Sxf2 17.Hxf2 e5 18.fxe5 fxe5 19.Hg3 Wac8 20.Wf1 d4 21.Wf2 ; 12...Wd8 13.Wac1 d4 14.Sd1 dxe3 15.dxe3 Wd2 16.Wf2 Wd8 17.h3 a5 18.Sc3 Gd7 19.a4 Wac8 20.Wd1 Ge8 21.Wfd2 ) 13.g4 b5 14.g5 Sh5 15.Se2 Gb7 16.d4 cxd4 17.Gxd4 Wfc8 18.c3 a5 19.Sg3 Sxg3 20.hxg3 b4 21.Wac1 ; 12.d3 b5 (12...Wd8 - 11 ...Wd8 12 d3 a6) 13.e4 (13.He2 Gb7 14.a4 b4 15.Sd1 a5 16.Sf2 Ga6 17.e4 e6=/+ 18.g4 Se8 19.c3 bxc3 20.Gxc3 Sd6 21.Wfc1 ) 13...dxe4 14.Sxe4 Sxe4 15.dxe4 Gb7 16.He2 Wfd8 17.a4 Gxe5 18.Gxe5 Hc6 19.Wae1 Wd7 20.f5 f6 21.Gc3 ; 12.d4 b5 13.dxc5 Hxc5 14.Hd4 Hxd4 15.exd4 Gf5 16.Ga3 Wfc8 17.Gc5 e6 18.b4 Gxc2 19.Wfc1 Ga4 20.Wab1 Se4 21.Sxe4 ) 12...b6 13.d3 (13.Se2 Sg4 14.Sxg4 Gxb2 15.Wa2 Gg7 16.Sg3 f5 17.Sf2 e5 18.Se2 Gb7 19.Sd3 e4 20.Se1 d4 21.c4 ) 13...Gb7 14.He2 Sd7 15.Sxd7 Hxd7 16.Sd1 Gxb2 17.Sxb2 b5 18.axb5 axb5 19.Wfb1 Gc6 20.Hd1 Hd6 21.Hd2 ]
12.d3 osłania e4 [12.He2 a6=/+ ] 12...a6 zabezpiecza wtargniecie na b5 13.Hf3 [13.He2 b5 14.e4 d4 15.Sb1 Sh5 16.Hf3 Gb7 17.g4 Sxf4 18.Sxf7 Kxf7 19.Hxf4+ Hxf4 20.Wxf4+ Kg8 21.a4 c4 22.axb5 c3 ] 13...b5 14.Se2 Gb7 15.a4 [15.Hg3 Sd7=/+ ] 15...d4 czarne zdobywają trochę przestrzeni [15...Se8 16.d4=/+ ] 16.e4 Sh5 17.g4 Sxf4 [17...Sf6 18.Hg3=/+ ] 18.Hxf4= Hxe5 19.Hxf7+ Kh8 20.axb5 axb5 21.Wxa8 białe grożą matem 21...Wxa8 22.b4 Wf8 czarne grożą zdobyciem materiału: Wf8xf7 [22...cxb4?? zbicie tego piona sprawi, że czarne będą miały nie lada kłopot 23.Gxd4 Hxd4+ 24.Sxd4 Gxd4+ 25.Kg2+- ] 23.Ha2 Wxf1+ [23...cxb4?? ten pion to zatruta przynęta, która wpędzi czarne w poważne kłopoty 24.Wxf8+ Gxf8 25.Gxd4+- ] 24.Kxf1 Hxh2 [nie 24...cxb4 25.Gxd4 Hb8 26.Hf7+/- ] 1/2-1/2
