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FIDE World Cup Khanty Mansiysk 2011 (4.1)

Polgar, Grischuk and Kamsky defeated in Round 4 Day 1 of the World Cup

Leinier Dominguez Perez of Cuba outplayed Judit Polgar on the black side of a Sicilian. Photo ©

Leinier Dominguez Perez of Cuba outplayed Judit Polgar on the black side of a Sicilian. Photo © | http://chess.ugrasport.com

It was a day when it was hard to find a single outstanding headline. 6 of the 8 games were decisive, in 2 of them black won and some well known names lost. Vladimir Potkin's reputation grows by the day as he punished risky opening play and time trouble by his friend Alexander Grischuk. Leinier Dominguez took advantage of some over-ambitious play from Judit Polgar when she really should have steered for a draw early after her opening went wrong. The heavyweight clash between Russian and US Champions saw Peter Svidler grind down Gata Kamsky. David Navara won with black against 18 year old Yaroslav Zherebukh after catching him out in the opening. Vugar Gashimov and Teimour Radjabov also won (both making quiet and confident progress through the event).

Judit Polgar lost to Leinier Dominguez Perez

Leinier Dominguez Perez beat Judit Polgar with black

Leinier Dominguez Perez beat Judit Polgar with black. Photo © FIDE World Cup Khanty Mansiysk 2011 Website

Leinier Dominguez Perez commented after his win against Judit Polgar that "I think it was a good game, it was important I got an easy position to play with black from the opening and I think the pressure was on white from the opening. That was my strategy all the time. "

Polgar should probably have accepted that she was not better out of the opening and played 17.Bxd5 after which a draw would have almost certainly followed. Instead after 17.exd5 as Dominguez points out the onus was definitely on her to show something. By move 27 she was busted (after 27...e4 this would have been even clearer) and taking his time Dominguez found his way to a win whilst Polgar was left with no counterplay whatsoever.

Leiner Dominguez Perez

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Judit Polgar

Position after 30...Qxf6. White's position is just depressing, she just has no counterplay, or prospect of it at all.

31. Rd3 Rc7 32. Qc3 Rca7 33. Rd2 Bd4 34. Qd3 Ra1 35. g3 Rxf1+ 36. Kxf1 Bc5 37. Kg2 e4 38. Qe2 Re8 39. f3 exf3+ 40. Qxf3 Re3 41. Qf1 Qe5 42. Qf4 Qe7 43. Ra2 Re1 44. b4 Be3 45. Qf3 Rg1+ 46. Kh3 Qg5 0-1

Vladimir Potkin beat Alexander Grischuk

Alexander Grischuk against Vladimir Potkin

Alexander Grischuk against Vladimir Potkin. Photo © FIDE World Cup Khanty Mansiysk 2011 Website

Vladimir Potkin finally made Alexander Grischuk pay for his normally benign (for him) addiction to time trouble. Grischuk had sharpened things straight out of the opening with 11...Nh5 which looks dubious, and this led him to a long term struggle for equality which he came quite close to achieving eventually. Perhaps in retrospect his 36...Re8 wasn't the best but by now he was extremely short of time, 38...Re4+ looks like an error, 39...b5 too and finally 40...Re5 left which with nothing to do but win with 41.d6. The more I see of Potkin the more I like his play.

Potkin,Vladimir (2682) - Grischuk,Alexander (2746) [E73]
FIDE World Cup 2011 Khanty-Mansiysk RUS (4.1), 06.09.2011

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 0-0 6.Bg5 Na6 7.f4 Qe8 8.Nf3 e5 9.fxe5 dxe5 10.d5 Nc5

[10...h6 11.Bd2 Bd7 12.Qc2 Nb4 13.Qc1 a5 14.a3 Na6 15.Bxh6 Nc5 16.Bxg7 Kxg7 17.Qe3 Nb3 18.Rd1 Ng4 19.Qd3 f5 20.h3 Rh8 21.0-0 Nf6 22.exf5 Bxf5 23.Qe3 Bxh3 24.Ng5 Bd7 25.Rxf6 Kxf6 26.Nce4+ Kg7 27.Qxb3 Rh5 28.Qc3 Bf5 29.Ne6+ Kf7 30.Qxe5 Qe7 31.Qg7+ 1-0 Hedman,E (2320)-Horvath,G (2325)/Budapest 1995]

11.Nd2 Nh5?!

This move seems to get black into a lot of trouble.

12.Bxh5 gxh5 13.Qxh5 Nd3+ 14.Ke2 Nf4+ 15.Bxf4 exf4 16.Rhf1 Be5 17.g3

There is an alternative discussed in the live broadcast.

[17.Kd3 f5 18.Qxe8 Rxe8 19.Rae1 fxe4+ 20.Ndxe4 Bf5 21.g4 Bg6 22.h4 h6 23.Kd2 c6 24.Nc5 cxd5 25.Nxd5]

17...fxg3 18.Nf3 Bg7 19.e5 Bxe5 20.Nxe5 f6 21.Qxe8 Rxe8 22.hxg3 Rxe5+ 23.Kd2 Kf7 24.Rf4 Rf5

[24...Kg6 25.Nb5 c6 26.Nc7 Rb8 27.Raf1 Kg5 28.Rxf6 Bf5 29.Rd6 Kg4]

25.Raf1 Rxf4 26.Rxf4 Bd7 27.Ne4 f5 28.Nc5 Bc8 29.b4 b6 30.Nd3 Kf6 31.Rh4 Kg7 32.Kc3 Bd7 33.Ne5 Be8 34.Kd4 h5 35.Nd3 Bf7 36.Nf4

Alexander Grischuk

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Vladimir Potkin

Position after 36.Nf4

36...Re8?!

Perhaps not quite the most accurate.

[36...a5 37.b5 (37.bxa5 Rxa5) 37...Kf6]

37.Nxh5+ Bxh5 38.Rxh5 Re4+?

[38...Kg6 39.Rh4 Re2 40.a3 Rd2+ 41.Kc3 Ra2 42.Kb3 Rg2 43.Rh3 and black looks fine.]

39.Kd3 b5?!

[39...Rg4 40.Rxf5 Rxg3+ 41.Ke4 Ra3 (41...Rc3 42.Kd4 Ra3 43.Re5 Kf7 (43...Kf8 44.Re6 Rg3 45.c5 Rg4+ 46.Kc3 Rg7 47.Kc4) 44.Re2 Ra4 45.Kc3 Ra3+ 46.Kb2 Rg3 47.Re6) 42.c5 bxc5 43.bxc5 Rxa2 44.d6; 39...Kf6 is perhaps the last chance. 40.Rh6+ Ke7 41.Rh4 Re1 42.Rh7+ Kd6 43.Rh6+ Ke7 44.Rc6 Kd8 45.Rf6 Rg1 46.Rxf5 Rxg3+ 47.Kc2]

40.c5 Re5

Final move before time control loses easily. But I think the position is already gone anyhow.

[40...Kg6 41.Rh8 (41.Rh8 Kf6 42.Rh7 Rg4 43.Rxc7 Rxg3+ 44.Kd2) 41...Kf6; 40...Kf6 41.Rh7 Rg4 42.Rxc7 Rxg3+ 43.Ke2 wins for white.]

41.d6 cxd6 42.c6 Re4 43.Rxf5 Rxb4 44.Rf2 1-0

Yaroslav Zherebukh lost to David Navara

David Navara against Yaroslav Zherebukh

David Navara against Yaroslav Zherebukh. Photo © FIDE World Cup Khanty Mansiysk 2011 Website

David Navara came as close as possible to get to an ideal scenario following a day of tie-breaks. He won very quickly with black against Yaroslav Zherebukh to take almost complete control of the match. Navara's move order in the Najdorf Sicilian where he didn't commit his queen to c7 right away seemed to have fooled his opponent, Navara after the game said that he believed that 10.Qe1 was an inaccuracy allowing him to equalise. This perhaps explains white's play shortly afterwards, maybe Zherebukh was still seeking an advantage, when he missed a simple tactic losing the exchange. Zherebukh did find a way by sacrificing a whole rook to put pressure on Navara, giving him the best chance to make a mistake, and indeed Narava admitted he did miss a couple of things, but in the end this initiative ran out and Navara was about to give mate when his opponent resigned. You can hear Navara explain his game on the official site's English Video coverage starting at: 17:29. .

Zherebukh,Yaroslav (2590) - Navara,David (2722) [B85]
FIDE World Cup 2011 Khanty-Mansiysk RUS (4.1), 06.09.2011
[Based on comments by David Navara]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 d6

Navara has chosen a clever move order.

7.0-0 Nf6 8.Be3 Be7 9.f4 0-0 10.Qe1

Inaccuracy enabling black to equalise quickly. Black's move order without Qc7 has been important.

10...Nxd4 11.Bxd4 b5 12.a3 Bb7 13.Qg3 g6

Navara already knew this in the last century.

[13...Bc6 Transposing to normal lines. But there is no point.]

14.Bf3 a5 15.Nxb5 Nxe4 16.Qe1 f5

Played quickly.

17.Nc3

[17.c4 Rf7 18.Kh1 Rc8 19.Rc1 Bf8 20.Qe3 Qh4 21.Bxe4 fxe4 22.Qd2 a4 23.Be3 Rd8 24.f5 exf5 25.Bg5 Qg4 26.h3 e3 27.Bxe3 Qxh3+ 28.Kg1 Bxg2 29.Rfe1 Be4 30.Qh2 Qg4+ 31.Kf2 f4 32.Bb6 Qf3+ 33.Kg1 Re8 34.Nd4 Qg4+ 35.Kf2 Be7 36.Rcd1 Bh4+ 37.Kf1 Bg3 38.Qh6 f3 39.Re3 Bf4 0-1 Baron Rodriguez,J (2424)-Jansa,V (2494)/Sabadell ESP 2007/The Week in Chess 668]

17...d5

Still equal.

18.Qe3 Bf6

[18...Rc8; 18...Ba6 19.Rfd1 Qc7 maybe even better than the game.]

19.Be2?!

Surprising move.

[19.Ne2 Ba6 Stopping the knight getting to d4.]

19...Ba6

David Navara

r__q_rk_
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_PP_B_PP
R____RK_

Yaroslav Zherebukh

Position after 19...Ba6!

20.Bd3?

I can only presume white misses that 22. Qxd3 fails to Qb6+ in a couple of moves.

[20.Rae1 Bxe2 21.Rxe2 Bxd4 22.Qxd4 Rc8 keeps damage to the minimum.; 20.Bxa6 Rxa6]

20...Bxd4

[20...Bxd3 was Navara's first thought but he plays a much better move.]

21.Qxd4 Bxd3 22.cxd3

[22.Qxd3 Qb6+ wins.]

22...Nd2 23.Rae1

This seems to be the best practical chance but white is totally busted.

[23.Qe3 Nxf1 24.Qxe6+ is also winning with black.]

23...Nxf1 24.Rxe6 Nd2

[24...Qd7 is a cheapo idea of Navara's but it isn't the best move available for him. 25.Rb6 (25.Re2 Nxh2 26.Kxh2) 25...Ne3 26.Qxe3 d4]

25.Nxd5 Nb3 26.Qe5

[26.Qc4 Rc8 with no dangerous checks. 27.Qxb3 Rc1+ 28.Re1 Rxe1+ 29.Kf2 Re6]

26...Ra7 27.Kf1

Navara now converts quite easily.

[27.Nf6+ was missed by Navara and even after the game he was worried by this. 27...Kf7 (27...Rxf6 Navara's initial intention. 28.Re8+ Qxe8 29.Qxe8+ and white is not worse.) 28.Nxh7 Qd4+ 29.Qxd4 Nxd4 30.Rf6+ Kg7 31.Rxf8 Kxh7 I guess is also losing but looks like the best chance to continue.]

27...Raf7

[27...Rg7 was Navara's initial thought.]

28.h4 a4 29.h5 gxh5 30.g3 Qb8 31.Rd6 Qb7 32.Rh6 Rd8 33.Nf6+ Rxf6 34.Rxf6 Nd2+ 35.Kf2 Qf3+ 0-1

Peter Svidler beats Gata Kamsky

Gata Kamsky against Peter Svidler

Gata Kamsky lost to Peter Svidler, US vs Russian Champions. Photo © FIDE World Cup Khanty Mansiysk 2011 Website

Peter Svidler against Gata Kamsky was probably the heavyweight clash of the round featuring as it did a match between the Russian and US Champion. Svidler chose a line of the Ruy Lopez with a small amount of, but long lasting, positional pressure. Kamsky started to get short of time and he must have been worn down with the defensive task too. Eventually this told and Kamsky gave ground allowing Svidler a decisive advantage.

Gata Kamsky

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Peter Svidler

Position after 46.Kf3

46....Ba2?

46...Rf6+ keeping white's king out is better. 47.Ke2 Ra6 48.Kd1 Kf6

47.Ke4 Rxa3 48.Kd4 Rb3?

loses quickly but I don't think there is any saving this position anyhow. 48...Ra8 49.Re7 h4 50.Rb7 Bb3 51.gxh4 Ra2 52.Kc3 Re2 53.Re7

49.d6 f6 50.Re7+ Kf8 51.Nd5 Bb1 52.Kc5 Rd3 53.Ra7 1-0

Teimour Radjabov beat Dmitry Jakovenko

Teimour Radjabov played a slow manoeuvring game in a Reti against Dmitry Jakovenko. Jakovenko turned down a straight-forward and good continuation of 36...Nd4 in favour of 36...Nb4 after which his position went downhill fast. It isn't clear to me what he missed.

Dmitry Jakovenko

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Teimour Radjabov

Position after 36.e4

36... Nb4

36... Nd4 37. exf5 Qxf4+ 38. Rxf4 Re5 39. f6 Rf7

37. Qxd6 Rxd6 38. Bxf5 Nxd5 39. cxd5 Bxf5 40. Rxf5 c4 41. Rf4 c3 42. Rf7 Rc8 43. Rgg7 Rdd8 44. Rh7+ Kg8 45. Rfg7+ Kf8 46. Rxa7 Kg8 47. Rag7+ Kf8 48. Rd7 1-0

Vugar Gashimov beats Peter Heine Nielsen

Vugar Gashimov against Peter Heine Nielsen

Vugar Gashimov against Peter Heine Nielsen. Photo © FIDE World Cup Khanty Mansiysk 2011 Website

Vugar Gashimov beat well known theoretician Peter Heine Nielsen on the white side of a Berlin Defence. Nielsen didn't necessarily have to sacrifice the exchange on move 24 but it looked good enough for a draw for a while. However on move 41 straight after first time control Nielsen blundered with 41...g5? rather than 41...c6 and Gashimov took a kingside pawn and made no mistake in converting.

Bu Xiangzhi draw Vassily Ivanchuk

Bu Xiangzhi got nothing against Vassily Ivanchuk in an English and the game trailed out to a draw in 28 moves.

Lazaro Bruzon draw Ruslan Ponomariov

Ponomariov-Bruzon

Ponomariov-Bruzon. Photo © FIDE World Cup Khanty Mansiysk 2011 Website

Lazaro Bruzon seemed to get a little something against Ruslan Ponomariov but his 28.Ng5 which he retracted the following move seems to have been a mistep that allowed Ponomariov to equalise and they almost immediately started to repeat the position.

FIDE World Cup 2011 Khanty-Mansiysk RUS Sun 28th Aug 2011 - Tue 20th Sep 2011
Round 4 Results
BdScoreNameFEDResNameFED
10-1Polgar, JuditHUN0-1Dominguez Perez, LeinierCUB
20.5-0.5Bu, XiangzhiCHN1/2Ivanchuk, VassilyUKR
30-1Zherebukh, YaroslavUKR0-1Navara, DavidCZE
40.5-0.5Bruzon Batista, LazaroCUB1/2Ponomariov, RuslanUKR
51-0Gashimov, VugarAZE1-0Nielsen, Peter HeineDEN
61-0Potkin, VladimirRUS1-0Grischuk, AlexanderRUS
71-0Radjabov, TeimourAZE1-0Jakovenko, DmitryRUS
81-0Svidler, PeterRUS1-0Kamsky, GataUSA

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