GM A. Shimanov (2583) Doruk - GM I. Nyzhnyk (2583) Gazi [D27]
Turkiye Is Bankasi Satranc Ligi Konya (6), 02.07.2011
[Houdini 1.5a x64 (2s)]
D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.0-0 a6 7.dxc5 Qxd1 [7...Bxc5 8.Qxd8+ Kxd8 9.Rd1+ Ke7 10.Nbd2 Nc6 11.Be2 Bd7 12.b3 Diagram
12...Rac8 13.Bb2 Nb4 14.Ne5 Bb5 15.Ndc4 Rhd8 16.Nd3 Nxd3 17.Rxd3 Ne8 18.Rxd8 Rxd8 19.Rd1 Bxc4 20.bxc4 Rc8 21.g3 f6 22.Bc3 Nd6 23.Rb1 b6 24.Bb4 Kd7 25.Bxc5 bxc5 26.Rb6 Rc6 27.Rb8 Nc8 28.Rb7+ Rc7 29.Rb8 Ra7 1/2-1/2 (51) Melnichuk,M (2310)-Nyzhnyk,I (2486)/Kiev 2009/OM 2] 8.Rxd1 Bxc5 9.Be2 Nc6 10.Nbd2 Ke7 [10...0-0 11.b3 Rd8 12.Bb2 Bd7 13.Nc4 Be8 14.Nfe5 Rxd1+ 15.Rxd1 Rd8 16.Rxd8 Nxd8 17.Bf3 Be7 18.Nb6 Bc5 19.Bd4 Bxd4 20.exd4 Kf8 21.Kf1 Bb5+ 22.Ke1 Ne8 23.a4 Bc6 24.Bxc6 bxc6 25.Nbd7+ Kramnik,V (2797)-Anand,V (2794)/Mainz 2001/CBM 084/1/2-1/2 (42)] 11.b3 Bd7 Diagram
[11...Rd8 12.Bb2 Bd7 13.Rac1 Bb4 14.Ne1 Rac8 15.Nd3 a5 16.Nc4 Kf8 17.Nb6 Rb8 18.Nxb4 axb4 19.Bxf6 1-0 (19) Medvegy,N (2344)-Veroci,Z (2266)/Hungary 2010/EXT 2011] 12.Ne1N [12.Bb2 Rhc8 13.Ng5 (13.Nc4 b5 14.Nce5 Be8 15.Rac1 Bd6 16.Nxc6+ Bxc6 17.Ne5 Bd5 18.f3 Ne8 19.e4 Bb7 20.Nd3 f6 21.Bd4 Rxc1 22.Rxc1 Rc8 23.Nc5 Rc6 24.Be3 Bc8 25.Kf2 e5 26.a4 bxa4 27.bxa4 Nc7 Flumbort,A (2372)-Kujovic,M (2335)/Patras 2001/CBM 083 ext/1/2-1/2) 13...Nb4 14.Nde4 Nxe4 15.Nxe4 f6 16.Bf3 Rab8 17.Nxc5 Rxc5 18.Ba3 a5 19.Rd4 Rb5 20.Rad1 Be8 21.Rc1 e5 22.Rc7+ Kf8 23.Rd2 b6 24.Rd6 Rc5 25.Rxb6 Rxc7 26.Rxb8 Kf7 Kveinys,A (2534)-Moen,A (2353)/Oslo 2009/CBM 129 Extra/1-0] 12...b5 13.Bb2 Rhd8 14.Nd3 White threatens to win material: Nd3xc5 14...Bd6 Diagram
15.g4 h6 16.h4 Nb4 17.g5 hxg5 18.hxg5 Nfd5 19.Ne4 [Less advisable is 19.Bxg7 Rg8 20.Nxb4 Bxb4=/+] 19...Nxd3 20.Rxd3 Bc7 21.Bf3 b4 22.Bxg7 Rg8 23.Bd4 f5 Black threatens to win material: f5xe4 24.Bc5+ Kd8 Diagram
25.Nf6! Deflection: d5 25...Rxg5+ [25...Nxf6 26.Bxa8 Clearance Deflection Pinning; /\25...-- 26.Nxg8 Wins material] 26.Kh1 Nxf6 27.Bxa8 White wins the exchange 27...Ke8 [27...Ne4 28.Rxd7+ Double attack: b4/d7 28...Kxd7 29.Rd1+ Kc8 30.Bxe4 fxe4 31.Bxb4+/=] 28.Rxd7 Decoy: d5 28...Kxd7 [28...Kxd7 29.Rd1+ Decoy Double attack; 28...Nxd7 29.Bxb4 Combination; /\28...-- 29.Rxc7 Wins material] 29.Rd1+ Ke8 30.Bxb4 f4 31.exf4 Bxf4 32.Bf3 a5 Black threatens to win material: a5xb4 33.Bc3 White threatens to win material: Bc3xf6 33...Kf7 34.a4 White has a new backward pawn: b3 34...Rc5 Black threatens to win material: Rc5xc3 35.Be1 Nd5 36.Kg1 Kf6 37.Kf1 Ke5 Diagram
38.Be2 Bg5 39.Bc4 Ke4 40.Ke2 [40.Kg1 Bd8+/=] 40...Nf4+ 41.Kf1 Bf6 [41...Nd5 42.Kg2+/=] 42.Bb5 The white bishop on an outpost 42...Bc3 43.Rd6 Bxe1 44.Kxe1 Rc2 45.Ra6 Ng2+ 46.Kd1 White threatens to win material: Kd1xc2 46...Rxf2 47.Rxa5 White has a new protected passed pawn: a4. Black has a new passed pawn: e6 47...Ne3+ 48.Kc1 Kd4 49.Ra6 White threatens to win material: Ra6xe6 49...Kc3 Black threatens to win material: Kc3xb3 50.Rc6+ Kxb3 51.a5 Kb4 Diagram 1/2-1/2
