Monday, February 7, 2011

118th New Zealand Chess Championship

International Master Anthony Ker is again New Zealand champion finishing on 9/11 1.5 points ahead of the field. Not only was he undefeated but he beat all his close rivals leaving a strong impression of dominance. Results and games

FM Steadman,M (2362) - IM Ker,A (2444) [A41]118th NZ Championship 2011 Auckland Round 3 Board 1, 04.01.2011
Round three of the championship and it is Ker's first titled opponent and an expected rival for first place.
1...d6 2.d4 Bg4
The Wade defence an expected choice from IM Ker. It is quite surprising that Ker does not deviate from his opening repertoire trusting he will know his pet lines better than anyone.

Other more popular moves include 3.c4 Nd7 4.Nc3 e5
3.e4 Nf6 (3...Nd7 4.c4 e5 5.Be2) 4.Nc3 e6 5.h3 Bh5 6.Qe2 (6.g4!?)
3.Nbd2 Nf6 4.h3 Bh5 5.e4 e6 6.Bd3
3...Nd7 4.c4 e5 5.Nc3 Ngf6 6.Be2 c6 7.0-0 Be7 8.e4 0-0 9.Be3 Bh5 10.Nd2 Bg6 11.d5 Nc5 12.f3 a5 13.Nb3 Nfd7 14.Nxc5 Nxc5 15.Qd2 Qc7 16.Rad1 Rfd8 17.g4 h6 18.Kg2 a4 19.Rh1 Bh4 20.Kh3 Qe7 21.Qc2 a3 22.b4 Na6 23.Qb3 c5 24.bxc5 Nxc5 25.Bxc5 dxc5 26.d6 Qg5 27.Rd3 h5 28.Rf1 hxg4+ 29.fxg4 Qh6 30.Kg2 Bg5 31.Rh3 Bh4 32.Rd1 Rd7 33.Bf3 Ra6 34.Nb5 Qg5 35.Qd3 Qf6 36.Qd5 Rc6 37.Rd3 Bg5 38.Rxa3 Ra6 39.Rxa6 bxa6 40.Qa8+ Rd8 41.Qxa6 Be3 42.Qa5 Bxe4 43.Qe1 Qf4 44.Qg3 Bxf3+ 45.Qxf3 Qxc4 46.Qxe3 Qxb5 47.Qxe5 Re8 48.d7 0-1 Tregubov,P-Akobian,V/Khanty-Mansiysk RUS 2009
3...Nf6 4.Be2 c6 5.c4 Qc7 6.Nc3 e5 7.h3 Bh5 8.b3 Nbd7 9.Bb2 Be7 10.Rc1 e4 11.Nd2 Bg6 12.g4 h6 13.h4 Rd8 14.b4 d5 15.cxd5 Bxb4 16.dxc6 Qxc6 17.Qb3 Qd6 18.Nc4 Qe7 19.a3 Bxc3+ 20.Bxc3 Nd5 21.Bb4 Nxb4 22.Qxb4 Nf6 23.Ne5 Qxb4+ 24.axb4 Nd5 25.Kd2 h5 26.g5 Bf5 27.b5 f6 28.gxf6 gxf6 29.Nc4 Bg4 30.Bxg4 hxg4 31.Rcg1 f5 32.Ra1 Rh7 33.Rxa7 Rc7 34.Ra4 Kf8 35.b6 Rc6 36.Rb1 Rdc8 37.Rb5 Ne7 38.Kc3 Rh6 39.Rc5 Rb8 40.d5 f4 41.d6 Ng6 42.h5 g3 43.fxg3 fxg3 44.hxg6 Rxg6 45.Ra1 Kg7 46.Rc7+ 1-0 Bischoff,K-Schlindwein,R/Germany 2001
4.c4 Nd7 5.Be2 e5 6.h3 Bxf3 7.Bxf3 g6 8.Nc3 Ngf6 9.0-0 Bg7 10.b4
10.d5 c5
10...0-0 11.b5 Qc7 12.bxc6 bxc6 13.Ba3 Rfe8
13...exd4 14.exd4 Nb6 15.Qd3

The following pawn sac by Ker is interesting. White could decline the pawn by 14.Qd3 and finish development but white has no reason to step away from complications.
14...Nxe5 15.Bxd6 Nxf3+ 16.gxf3 Qd7 17.Kg2 Red8 18.Bh2 Qe6 19.Qe2

For the sacrificed pawn black has damaged white's King safety caused the bishop on h2 to be out of play and currently has the initiative. It must also be realised the extra pawn is doubled and will be hard to convert a win with even in an endgame.
19...Nh5 20.Rac1 Bxc3
It may seem strange to swap black's good bishop for white's knight but 20...Qe7 21.Ne4 f5 22.Ng3 Nf6 Black's attack is not progressing.
21.Rxc3 Rd4 22.e4
22.Rh1 Rad8 23.Rc2 R4d7
22...Rad8 23.Qe3 c5 24.Qg5 Rc8 25.Qe5 Qa6
Maybe better is 25...Qd7 26.Qg5² Both sides have equal chances although white's position is harder to play. (26.Rb1? f6-+)
26.Rb1 Qxa2 27.Rb8± Black has got his pawn back but white now has chances for a good counter attack.

White misses his chance 28.Rcb3!? Black is forced to bring his Queen back to defend which costs him a pawn leaving white clearly better. 28...Qd2 29.Qe7 Rf8 (29...Rxb8 30.Rxb8 Rxb8 31.Bxb8 Nf4+ 32.Bxf4 Qxf4 33.Qxc5±) 30.Rxc8 Rxc8 31.Rb7 Nf4+ 32.Bxf4 Qxf4 33.Rxa
28...Rd2 29.Bg1 Qa1 30.f4?
30.Rb8 Rxb8 31.Qxb8+ Kg7 32.Rb3 (32.Qe5+ Nf6 33.f4 Qe1 34.Kh2 Rd1-+) 32...Qd4 33.Rb7 g5 34.Rxa7 Nf4+ 35.Kh1 Qc3 36.Kh2 Ng6 (36...Qxf3 37.Qe5+ Kh6 38.Qf6+ Kh5 39.Qxf7+ Kh4 40.Qxh7+ Nh5 41.Qf5) 37.Qg3 h6 black still has a nice edge and will break through soon anyway.
30...Rd1-+ 31.Bh2 Rh1 32.Qd5
32.Rb8 Qf1+ 33.Kf3 Rxb8 34.Qxb8+ Kg7 35.Qe5+ Nf6 36.Kg3 h5 37.h4 Qe2 38.Kg2 Re1 39.Re3 Qf1+ 40.Kg3 Rxe3+ 41.fxe3 Qxc4 42.f5 Qxe4 43.Qxe4 Nxe4+ 44.Kf4 Nd2 45.e4-+]
32...Qf1+ 33.Kf3 Rf8 White resigns
33...Rf8 34.Bg3 Rxh3 35.Qg5 Qd1+ 36.Ke3 (36.Kg2 Qh1#) 36...Rh1 37.f3 Nxg3 38.Qxg3 Re1+-+ 0-1