SM-2011-0-00140, 26.01.2011
D47: Obrona półsłowiańska: system Merana
1.d4 d5 2.c4 c6 3.e3!? Sf6 4.Sf3 e6 5.Sc3 Sbd7 6.Gd3 dxc4 7.Gxc4 b5 8.Gd3 Gb7 9.a3 Gd6 10.0-0 0-0 11.h3
11...a6 [11...We8 12.e4 e5 13.Gg5 (13.We1 a6 14.dxe5 Sxe5 15.Sxe5 Gxe5 16.Hf3 h6 17.Gc2 c5 18.Gf4 Hc7 19.Gxe5 Hxe5 20.He3 Wad8 21.Wad1 Jakobsen,O - Gausel,E Copenhagen 2002) 13...h6 14.Gh4 a6 15.Gc2 Wc8 16.Hd2 c5 17.dxc5 Gxc5 18.Wad1 Hb6 1/2-1/2 Braun,A - Ribli,Z bdl2006/07;
11...He7 12.Gd2 (12.Sg5 e5 13.Hc2 - 11 ...e5 12 Hc2 He7 13 Sg5) 12...a6 (12...a5 13.We1 b4 14.Sa4 c5 15.e4 c4 16.Gc2 e5 17.d5 Wfc8 18.Sh4 g6 19.Hf3 Hd8 20.Hg3 Sh5 21.Hg4 Gusan,B - De Carlos Arregui,I ws 2007) 13.e4 e5 14.b4 exd4 15.Sxd4 c5 16.Sf5 He6 17.We1 Wfd8 18.Hb1 Wac8 19.f4 cxb4 20.axb4 Gxb4 21.Hxb4 Mareco,S - Zambrana,O Santos 2008;
11...e5 12.Hc2 We8 (12...He7 13.Sg5 (13.Se4 Sxe4 14.Gxe4 Sf6 15.dxe5 Sxe4 16.exd6 Sxd6 17.Sd4 Hg5 18.e4 He5 19.Sxc6 He8 20.Sa5 Hxe4 21.Hxe4 Smejkal,J - Cvitan,O Zagreb 1985; 13.Gd2 a6 (13...Wfe8 - 12 ...We8 13 Gd2 He7) 14.b4 Wfc8 (14...Wfd8 15.Wfe1 g6 16.Wad1 c5 17.dxc5 Gxc5 18.bxc5 e4 19.Sxe4 Sxe4 20.Ga5 Sexc5 21.Gxd8 Feher,G - Turzo,A Zalakaros 1995) 15.Sg5 h6 16.Sge4 Sxe4 17.Sxe4 Gc7 18.f4 exd4 19.exd4 Gb6 20.Gc3 Sf6 21.Sc5 Renet,O - Ammann,P SUItt 1996; 13.e4 Wfe8 (13...a6 14.Ge3 (14.dxe5 Sxe5 15.Sxe5 Gxe5 16.f4 Gd4+ 17.Kh2 Sg4+ 18.Kg3 Se3 19.Gxe3 Gxe3 20.Wae1 Gd4 21.e5 Henriksen,G - Groenn,A NOR 1992) 14...c5 0-1 Johnson,MW - Grodzensky,SY corr 1999; 13...c5 14.dxc5 Sxc5 15.Sxb5 Sxd3 16.Hxd3 Wfd8 17.Sxd6 Wxd6 18.Hc3 We8 19.Hxe5 We6 20.Ha5 Gxe4 21.Sd4 Aronov,I - Lisutin,AV corr 1997) 14.Ge3 a6 15.b4 g6 16.dxe5 Sxe5 17.Sxe5 Gxe5 18.Gc5 Hc7 19.Wae1 Wac8 20.Se2 Sd7 21.f4 Polak,T - Sosna,J CZEtt 1998) 13...h6 14.Sge4 Gb8 (14...Sxe4 15.Sxe4 a6 16.b4 exd4 17.exd4 Sf6 18.Gd2 Wad8 19.Wfe1 Gb8 20.Sc5 Hc7 21.g3 Estremera Panos,S - Braga,FA Zaragoza 2002; 14...a6 15.Sxd6 Hxd6 16.Se4 Hd5 17.Sxf6+ Sxf6 18.dxe5 Hxe5 19.f4 He7 20.e4 c5 21.e5 Mijatovic,D - Nestorovic,D Herceg Novi 2005) 15.Gd2 a5 16.Wfe1 Sxe4 17.Gxe4 Sf6 18.dxe5 Sxe4 19.Sxe4 Hxe5 20.f4 He7 21.Sc5 Ostenstad,B - Stokke,K Hamar 2007) 13.Gd2 He7 14.Sg5 (14.Se4 Sxe4 15.Gxe4 Sf6 16.dxe5 Sxe4 17.Hxe4 1/2-1/2 Gligoric,S - Trifunovic,P Bled 1961) 14...h6 15.Sge4 Gc7 16.Wfe1 Gb6 17.Sg3 Wad8 18.Wad1 Hf8 19.Sce2 a6 20.b4 h5 21.Gc3 Topalov,V - Aronian,L Sofia 2008]
12.b4 [12.Se4 Sxe4 13.Gxe4 Sf6 14.Gc2 c5 15.dxc5 Gxc5 16.b4 Ge7 17.Hxd8 Wfxd8 1/2-1/2 Blumenstein,R - Reichl,R CZEtt 2003;
12.e4 e5 13.Gg5 (13.Ge3 We8 14.Wc1 (14.dxe5 Sxe5 15.Sxe5 Gxe5 16.Hc2 c5 17.Gxc5?-/+ (17.Wad1 Ha5 (17...Gd4 18.Wfe1= ) 18.Gxc5 Gxc3 19.Hxc3 Hxc3 20.bxc3 Gxe4 21.Gd4 Wad8 ) 17...Wc8 18.b4 Sd7 19.Wad1 Sxc5 20.bxc5 Ha5 21.Sb1 h6 Maric,A - Feygin,M Dortmund 1999) 14...Wc8 15.Gb1 Gb8 16.dxe5 Sxe5 17.Sxe5 Gxe5 18.Hxd8 Wcxd8 19.Wfd1 c5 20.Gxc5 Gxc3 21.bxc3 Gxe4 Brodsky,M - Shtanko,D Poltava 2008) 13...h6 (13...We8 14.Gc2 c5 15.d5 Sf8 16.We1 h6 17.Ge3 Sg6 18.Sd2 Sf4 19.a4 b4 20.Se2 a5 21.Sc4 Ga6 Garcia Padron,J - Anguix Garrido,JF Las Palmas 1993) 14.Gh4 He7 15.Gc2 Wfe8 16.We1 Wad8 17.He2 g5 18.Gg3 Sh5 19.Gxe5 Sxe5 20.dxe5 Sf4 21.He3 Gc5 Franic,M - Bilobrk,F Sibenik 2009]
12...a5 13.Wb1 axb4 14.axb4 Sd5 [14...He7 15.Hb3 Sd5 16.Sxd5 (16.e4 Sxb4 17.Ge2 (17.e5 Sxd3 18.Gg5 Wa3 19.Hc2 f6 20.exd6 Hxd6 21.Hxd3 b4 22.Se4 Hd5 23.Hc2 Ga6 24.Wfd1 Schroll,G - Bawart,M AUT'1996) 17...Sa6 18.e5 Gb4 19.Gg5 f6 20.exf6 gxf6 21.Gh6 Wfe8 22.Sh4 Gxc3 23.Hxc3 Kh8 24.Wfe1 Efremov,AG - Kirsanov,VN ws 2008) 16...exd5 17.Gd2 (17.Gc2 f5 18.Se1 Sb6 19.Sd3 Sc4 20.Hc3 g5 21.Sc5 Wad8 22.Gd3 Gc8 23.Gxc4 bxc4 24.f4 Franic,M - Rogic,D Pula 1998) 17...Sf6 18.Wfc1 Se4 19.Ge1 Wae8 20.Se5 Gxe5 21.dxe5 Hxe5 22.Gxe4 Hxe4 23.Hc2 Hxc2 24.Wxc2 Ivanov,MM - Kulaots,K Borup 2008]
15.Sxd5 exd5 16.Hc2 [16.Gd2 Sb6= ] 16...h6 osłania g5 17.e4 [17.We1 We8= ] 17...dxe4 18.Gxe4 wywiera presję na odstałego piona 18...Sf6 19.Gd3 [19.Gxc6? nie ma sensu z powodu 19...Hc7 20.d5 Sxd5-+ ] 19...Sd5 czarne grożą zdobyciem materiału: Sd5xb4, skoczek czuje się na polu d5 wyśmienicie 20.Gd2 Wa4 zwiększając presję na izolowanego piona na b4,doskonała pozycja 21.Gh7+ Kh8 22.Ge4 We8 [22...Gxb4?? tego piona należy pozostawić w spokoju 23.Gxd5 Hxd5 24.Gxb4+- ] 23.Se5 Gxe5 24.dxe5 Wxe5 25.Wfe1 Wa8 zdobywają materiał 26.Hc5 f5 27.Gc2 Wxe1+ 28.Wxe1 Hf6 29.Gb3 Hb2 czarne grożą zdobyciem materiału: Hb2xd2 30.Gc2 białe grożą zdobyciem materiału: Gc2xf5 30...Hf6 - 28 ...Hf6 31.Gb3 1/2-1/2
