The Decisive Game in Canberra

This game defined the winner of the tournament:
Arutinian,D (2575) - Deviatkin,A (2566) [B10]
Doeberl Cup Premier Canberra AUS (9), 25.04.2011
[Dejan Bojkov]
1.c4 c6 2.e4 d5 3.exd5 cxd5 4.cxd5 Nf6 5.Nc3 Nxd5 6.Nf3 Nc6 7.Bb5 Curiously, Arutinian had the very same position on board two around ago, with the black pieces. The Georgian GM likes to play against both sides of the isolani. 7...e6 8.0–0 Be7 9.d4 0–0 10.Re1 Qd6 11.a3 Rd8 12.Qc2

White usually starts with the move: [12.Bd3 which is a bit more flexible, here are a couple of examples: 12...Nf6 (12...Bd7 13.Bc2 Be8 14.Qd3 g6 15.h4 Rac8 16.Bh6 Nxc3 17.bxc3 e5 18.Bb3 Bf6 (18...exd4 19.cxd4) 19.Ng5 Bxg5 20.Bxg5 Rd7 21.Re4 Rdc7 22.Qe2 Na5 23.Ba2 Nc4 24.dxe5 Qxa3 25.Re1 b5 26.h5 Rc6 27.Bf6 Qxc3 28.Qg4 Qa3 29.Qg5 Qf8 30.Rh4 Re6 31.Ree4 h6 32.hxg6 Rxf6 33.Qxf6 fxg6 34.Rxc4 bxc4 35.Rxc4 1–0 Nevednichy,2538)-Kallai,G (2500)/ Hungary 2004/EXT 2011) 13.Be3 b6 14.Qc2 Bb7 15.Rad1 Rac8 16.d5!

A thematic breakthrough, which Black should always be aware of! 16...Nxd5 (16...exd5 17.Bf5 Ra8 18.Ne4 Nxe4 19.Bxe4 g6 (19...h6 20.Rxd5 Qb8 (20...Qf6 21.Bh7+ Kh8 (21...Kf8 22.Rf5 Qd6 23.Qb3+-) 22.Rf5+-) ) 20.Bxd5 Qc7 (20...Nb4 21.Bxf7+ Kxf7 22.axb4 Qxb4 23.Ne5+ Kg8 24.Nc6 Bxc6 25.Qxc6 Qb3 26.Bd4‚) 21.Bxf7+ Kxf7 22.Bh6 Kg8 23.Qb3+ Kh8 24.Qf7 Rg8 25.Ng5+-) 17.Nxd5 exd5 18.Bxh7+‚ Kf8 19.Qf5 d4 20.Bf4 Qf6 21.Qg4 g6 22.Bh6+ Ke8 23.Bg5 Qd6 24.h4 Qd7 25.Qg3 Qd6 26.Ne5 Rc7 27.Bf4 Qd5 28.Nxf7 d3 29.Bxg6 1–0 Matamoros Franco,C (2540) -Dias,P (2425)/Campillos 2007/CBM 117 ext] 12...Bd7 13.Bd3 h6 Now Black's position is much more solid than with the g7-g6 set-up. 14.Bd2 Rac8 15.Nxd5 exd5 Deviatkin plays solidly. In case of: [15...Qxd5 The d4-d5 breakthrough idea will still irritate Black- 16.Bc3 Bf6 17.Bh7+ Kh8 18.Be4 Qb5 19.Rad1 and White is already threatening d4-d5.] 16.Bc3 Bg4= Or else White will play h2-h3. It seems as Black had already equalized. 17.Ne5 [17.Bh7+ Kh8 18.Bf5 Bxf5 19.Qxf5 Qf6= (19...Kg8=) ] 17...Nxe5 18.dxe5 Qb6 19.Qa4 Bd7 [19...Be6? 20.Ba5] 20.Qf4 Be6

21.h4?! Black's active pieces will keep the balance in case of: [21.Bd4 Bc5 22.Bxc5 Rxc5 23.Qb4 (23.b4 Rc3 24.Red1 Rdc8) 23...Rc6 24.Rac1 Qxb4 25.axb4 Rb6 26.b5 a6= but this should have been preferred. Now Black will use his main trump.] 21...d4! 22.Bd2 Qb3 Of course not: [22...Qxb2?? 23.Reb1 and the queen is trapped.] 23.Be4?! One mistake leads to another. Arutinian should have preferred: [23.Qe4 g6 24.Qe2 h5 25.Bg5 Bxg5 26.hxg5 Rc5 although Black already has a pull here.] 23...d3 24.Qg3 Kh8 25.Bc3 d2 26.Red1 Rc4

Consistently following his plan. However, he is missing a strong tactical blow: [26...Bxa3! 27.Rxd2 (27.bxa3 Rxc3 28.Qf4 Qc4–+; 27.Rxa3 Qxd1+) 27...Rxd2 28.Bxd2 Qxg3 29.fxg3 Bxb2–+ 30.Rxa7 Bd4+] 27.Qf3 Bxh4 28.Ba5 Qxf3 Once more safe play by the Russian GM. The reason for this is understandable. A draw secures tie for the first place, while a possible loss will bring home nothing but peanuts. [28...Qxb2 29.Bxd8 Bxd8 30.Rab1 Qxe5 31.Bxb7 Bg5–+] 29.Bxf3 b6 30.Bxd2 Rc2 31.Be3 Rxb2 32.a4 Rxd1+ 33.Rxd1 Bg5 34.Bd4 Rb4 35.Bc6 Bg4 [35...Bf5!? with the idea Bf5-c2 was better, and Black should win. Now Arutinian seizes his chance.] 36.f3!? Sacrificing a pawn to liquidate into an opposite-coloured bishop endgame, which is famous for the drawing tendencies. 36...Bxf3 37.Bxf3 Rxd4 38.Rxd4 Be3+ 39.Kf1 Bxd4 40.Bd5 Kg8 41.e6 fxe6 42.Bxe6+ Kf8 43.Ke2 Ke7 44.Bh3 Kd6 45.Kd3 Kc5 46.Bd7 Bf6 47.Be6?! This move lets Black create a passed pawn. The further the distance is between the pawns, the less chances the defender has, as it is easier "to stretch" his defensive forces. [47.g4! was much better. White needs to keep the zone with his king, and not let the counterpart approach his king's side pawns, or help the b passer win the bishop. An important detail is that the promotional square of the h pawn is at the opposite colour of the bishop that Black has. 47...a6 48.Be8 b5 A b pawn is less harmful. 49.axb5 axb5 50.Bg6 Kd5! This is the only way to make progress: (50...b4 51.Bf7 Kd6 52.Ke4 Ke7 53.Bb3 g6 54.Bg8 h5? Once that the h pawn is moved, White will have an additional fortress resource. 55.gxh5 gxh5 56.Kf3=

White is just placing his hing to h1, and then can sacrifice the bishop for the b pawn- it is a fortress.; 50...Kb4 51.Be8 harassing the pawn, and not letting the black king move freely. 51...Ka5 52.Bf7 b4 53.Kc2 Ka4 54.Bb3+ Ka3 55.Bf7 and Black cannot make progress.) 51.Bf7+ Ke5 52.Ke3 Bg5+! 53.Kf3 (53.Kd3 Kf4 54.Be6 Bf6 55.Ke2 b4 56.Kf2 Kg5 followed by h6-h5. Once that a second passed pawn is created Black should be winning, although there are still technical difficulties.) 53...Kd4 followed by Kd4-c3, pawn is marching to b2, and once the White king comes to deal with the b pawn, his counterpart goes to the king's flank and wins the bishop. Still, White has more defensive resources than in the game. For example if Black prematurely advances the pawn to b2 White places the bishop on the b1–h7 diagonal, and this is a draw!] 47...b5! Now Black wins. 48.axb5 Kxb5 49.Bf7 a5 50.Ke4 Kb4 51.Kd3 a4 52.Bg8 h5 53.Bf7 h4 54.Bg8 a3 55.Bf7 g5 56.Be6 g4 57.Ke4 Kc3 58.Kf4 g3 0–1
Deviatkin is the proud winner of Doeberl Cup 2011.

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