WC27SF14, 31.12.2003
Martin Leutwyler
B04: Obrona Alechina: 4. Sf3
1.e4 Sf6 2.e5 Sd5 3.d4 d6 4.Sf3 dxe5 5.Sxe5 c6 6.Gc4 Sd7 7.Sxd7
7...Gxd7 8.Hf3!? [8.Gd2 Gf5 9.a3 e6 10.Ga2 Gd6 11.c4 Sf6 12.Sc3 0-0 13.0-0 Sg4 14.f4 Gxa3 15.bxa3 Hxd4+ 16.Kh1 Sf2+ 17.Wxf2 Hxf2 Evtodiy,V - Bortnik,N Kiev 2003;
8.0-0 e6 (8...Gf5 9.Gd3 (9.Gg5 Hd6 10.Gb3 e6 11.Sd2 Ge7 12.Sc4 Hc7 13.Gxe7 Sxe7 14.He2 +/=/= 14...0-0 15.Wad1 h6 16.He5 Hd7 17.Wfe1 Sd5 Werner,M - Burkat,P bdl1992/93 1993; 9.c3 e6 10.He2 Gd6 11.Sd2 0-0 1/2-1/2 Kobalija,M - Miles,AJ Varadero 2000) 9...Gxd3 10.Hxd3 e6 11.c4 Sf6 12.Sd2 Ge7 13.Sf3 0-0 14.Gd2 Hc7 15.Wfe1 Wad8 16.He2 Wfe8 17.Gc3 1/2-1/2 Cao Sang - Miles,AJ Ohrid 2001) 9.Sd2 Sb6 (9...Sf6 10.Sf3 Gd6 11.We1 Hc7 12.Se5 0-0 13.Gg5 Sd5 14.Hg4 f5 15.Hg3 Wae8 16.Gb3 Gc8 17.c4 Sf6 Murawski,G - Izbinski,B Ustron k/Wisly 2001) 10.Gb3 c5 11.dxc5 Gxc5 12.Se4 Ge7 13.Sd6+ Gxd6 14.Hxd6 Gb5 15.Wd1 Hxd6 16.Wxd6 Sc4 17.Wd4 1/2-1/2 Van Delft,M - Wohl,AH Wijk aan Zee 2003]
8...e6 9.0-0 ostatni ruch z książki 9...Gd6 [9...Hf6 10.He4 Gd6 11.Sd2 Hg6 12.c3 0-0-0 13.Hxg6 hxg6 14.h3 f6 15.Se4 Gc7 16.Sc5 g5 17.We1 Whe8 18.Gd2 Gd6 19.Sxd7 Ochoa de Echaguen,FJ - Rivas Pastor,M Barcelona 1992]
10.c3 [10.Sd2? Hh4 xd4,h2; 10.Gxd5 cxd5 (10...exd5 11.We1+ Ge6 12.Gf4 Ge7 13.Sd2 0-0 14.We2 Hd7 15.h3 Wfe8 16.Wae1 Gf5 17.c3+/= ) 11.Gf4 Ge7!? 12.Sd2 0-0 13.c4?! (13.Hg3 Wc8 14.c3 We8 15.Sf3 Gb5 16.Wfd1 (16.Wfe1 Gd3 ) 16...Ge2 17.Wd2 Gxf3 18.Hxf3 b5 ) 13...dxc4 14.Hxb7 Hc8 15.Hxc8 (15.Hf3 ) 15...Waxc8 16.Se4 Wfd8=/+ 17.Ge3 (17.Gd6?! Gxd6 18.Sxd6 Wc6 19.Se4 Wb6 ) 17...Gc6 18.Sc5 (18.f3!? Wb8 19.Wf2 Wb4 ) 18...Gf6 19.Wad1 e5! Atakisi,U - Luther,T Halkidiki 2002]
10...Hc7 [10...0-0 11.Sd2 Hc7 12.h3 - 10 ...Hc7 11 h3 0-0 12 Sd2] 11.h3 0-0 12.Sd2 e5 [12...Sf6 13.Gb3 c5= ] 13.dxe5 Gxe5 14.Sb3 Sb6 15.Gd3 Ge6 16.We1 Wfe8 17.Ge3 Sc4 18.Gd4 Gxd4 19.Sxd4 Gd5 z groźbą Gd5xf3 20.Hf5 białe grożą matem 20...g6 z groźbą: g6xf5 21.Hf6 Hd6 1/2-1/2
