WC-2012-T-00003, 19.12.2010
fot: Alfredo Dutra
B41: Obrona sycylijska: wariant Kana: 5. c4
1.d4 e6 2.Sf3 c5 3.e4 cxd4 4.Sxd4 a6 5.c4 Sf6 6.Sc3 Gb4 7.Hd3 Sc6 8.Sxc6 [8.Gd2 0-0 (8...Hc7 9.b3 (9.a3 Ge7 10.Ge2 0-0 11.0-0 d6 12.Sxc6 bxc6 13.Hg3 Sd7 14.Ge3 c5 15.Wad1 Wb8 16.Wd2 Se5 17.f4 Sc6 Janetschek,K - Walther,E Biel 1960; 9.f4 Sxd4 10.Hxd4 Gc5 11.Hd3 Sg4 12.Sd1 Hb6 13.Hg3 f5 14.h3 Sh6 15.Hxg7 Sf7 16.e5 h5 17.Hg3 h4 Vardanyan,M - Ozola,A Riga 1975; 9.Sxc6 dxc6 10.a3 Ge7 (10...Gd6 11.g3 e5 12.Gg2 Ge6 13.Sd1 Wd8 14.Hc2 Gc5 15.Ge3 Ha5+ 16.Gd2 Hc7 - 14 ..Gc5 17.Ge3 Gxe3 Bjorgvinsson,J - Josteinsson,L Reykjavik 1971) 11.Ge2 e5 12.0-0 0-0 13.Hg3 Kh8 14.Ge3 Sxe4 15.Sxe4 f5 16.Gb6 Hxb6 17.Hxe5 fxe4 Rogobete,NJ - Reiter,M GERtt 1997) 9...Gc5 10.Sxc6 dxc6 11.Ge2 e5 12.Hg3 0-0 13.Gh6 Se8 14.0-0 Gd4 15.Wac1 Kh8 16.Ge3 Gxe3 17.Hxe3 Sf6 Nagy,K - Kantor,S HUNtt 2000) 9.a3 Gxc3 10.Gxc3 d5 11.Sxc6 bxc6 12.e5 Se4 13.Wd1 Hb6 14.Hc2 c5 15.Gd3 Sxc3 16.Gxh7+ Kh8 17.Wd3 Hc7 Tamayo,J - Cordova,E Villa Giardino 2002;
8.Sc2 Ge7 9.Ge2 d6 10.Hg3 Kf8 11.Ge3 Ha5 12.0-0 Gd7 13.f4 Wc8 14.a3 Hc7 15.b4 h5 16.Wad1 Sd8 17.e5 h4 Nagy,K - Sandor,T HUNtt 2003;
8.Ge2 0-0 (8...Hc7 - A34; B41;) 9.0-0 Hc7 - A34; B24; B40; B41:B44;]
8...dxc6 9.Hxd8+ [9.e5 Hxd3 10.Gxd3 Sd7 11.f4 (11.Gf4 Sc5 12.Gc2 b5 13.0-0-0 Gxc3 14.bxc3 bxc4 15.Wd6 0-0 16.Whd1 a5 17.Ge3 Sd3+ 18.Gxd3 cxd3 Kovacevic,A - Maric,D Kragujevac 2009) 11...f6 12.exf6 Sxf6 13.Gd2 (13.Ge3 e5 14.0-0 exf4 15.Wxf4 Gd6 16.Wh4 Ge6 17.We1 0-0-0 18.Gb6 Gc7 Kovacevic,A - Pikula,D Zlatibor 2007) 13...0-0 14.Wf1 e5 15.f5 Wd8 16.Ge2 b5 17.0-0-0 Gb7 18.g4 c5 Kovacevic,A - Miezis,N Nova Gorica 2010]
9...Kxd8 1/2-1/2 Hracek,Z - Markus,R Sibenik 2005 10.e5 białe grożą zdobyciem materiału: e5xf6 [10.Gd2 e5 11.0-0-0 (11.f3 Ge6 12.a3 Gc5 13.0-0-0 Sd7 14.Kc2 b5 15.b4 Gd4 16.Se2 bxc4 17.Gf4 a5 18.Sxd4 exd4 19.Wxd4 axb4 Ruan,L - Khurtsidze,N Ekaterinburg 2007) 11...Ke7 (11...Ke8 12.Sa4 Gxd2+ 13.Wxd2 Ke7 14.f3 Ge6 15.Ge2 Sd7 16.Whd1 b5 17.Sc3 Whd8 18.b3 bxc4 19.Gxc4 Gxc4 Ji Dan - Sun Chuyao Jinan/Wuxi/Xiapu 2005) 12.f3 Ge6 13.a3 Gc5 14.Sa4 Sd7 15.Sxc5 Sxc5 16.Gb4 b6 17.Kc2 Whd8 18.Ge2 f6 19.Wxd8 Wxd8 Ruan,L - Cherenkova,K Sochi 2007]
DIAGRAM
10...Sd7 czarne grożą zdobyciem materiału: Sd7xe5 [10...Se4 11.a3 (11.Gd2 Gxc3 12.Gxc3 Sxc3 13.bxc3 b6 14.0-0-0+ Kc7 15.g3 Gb7 16.Gg2 Wad8 17.Kc2 Wd7 18.Wxd7+ Kxd7 19.Wd1+ Kc7 20.Kb3 Srinath,N - Negi,P Dubai 2005) 11...Gxc3+ 12.bxc3 Kc7 13.Ge3 b6 14.Gd3 Sc5 15.Gxc5 bxc5 16.0-0-0 Gb7 17.Whe1 Wad8 18.We3 Wd7 19.Gf1 Wxd1+ 20.Kxd1 Flores Rios,M - Lemos,D Villa Martelli 2008] 11.Gf4 [11.f4 Gxc3+ 12.bxc3 b6= ] 11...f5 [11...Ke7 12.h4= ] 12.0-0-0 Kc7 13.Ge3 [13.h4 Ge7+/= ] 13...Ge7 14.f4 b5 [14...Wg8 15.g3+/= ] 15.Wg1+/= Sb6 [15...g6 16.g4+/= ] 16.b3 zabezpiecza a4 16...h5 [16...bxc4 17.Gxb6+ Kxb6 18.Gxc4+/= ] 17.g3 zabezpiecza wtargnięcie na h4 [17.Kc2 bxc4 18.Gxb6+ Kxb6 19.Gxc4 Kc7+/= ] 17...bxc4 [17...Gb7 18.Ge2+/= ] 18.Gxb6+ Kxb6 19.Gxc4 czarne mają parę gońców 19...Kc7 20.Kb2 [20.Wg2 g5+/= ] 20...g5 gra przeciw łańcuchowi pionów [20...Gc5 21.Wge1+/= ]
21.h4 g4 czarny zdobywa trochę przestrzeni 22.Wg2 Wd8 23.Wxd8 Kxd8 24.Se2 c5 25.Sc3 Ke8 26.We2 propozycja remisu 26...Kf7 27.Wd2 Wa7 28.Kc2 Gb7 29.a3 Gc6 30.Sd1 a5 31.Se3 białe grożą zdobyciem materiału: Se3xf5 31...Ge4+ 32.Kc3 Wa8 33.a4 białe maja nowego piona odstałego: b3 [33.Gb5 Wd8+/= ] 33...Wa7 34.Kb2 Wa8 [34...Wc7 35.Wd1+/= ] 35.Gb5 piękne pole! 35...Wd8 36.Wxd8 Gxd8 1/2-1/2