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Ruslan Ponomariov vs Etienne Bacrot
World Cup (2009), Khanty-Mansiysk RUS, rd 4, Dec-01
Slav Defense: Quiet Variation. Schallopp Defense (D12)  ·  1/2-1/2


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Kibitzer's Corner
Dec-01-09  GaeBulg: Rybka evals give Ponomariov a +7 during the end game! I guess the winning line may have been too deep to see OTB.
Dec-01-09  Albertan: Yeah GaeBulg, I was playing through the game with Deep Rybka 3 today and my program came to the same conclusion as yours. Ponomariov missed his last chance to win on move 78:

78. Na4 Kd5 79. Kg6 Ne6 80. Kf5 Nf8
81. Nc3+ Kd6 82. Kf6 Nh7+ 83. Kg7 Ng5 84. Ne4+

Premium Chessgames Member
  Eyal: No, actually it happened on move 82:

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Here 82.Kg7! would have won: 82....Ne6+ (82...Kf5 83.Nf3 - and unlike the game, Black doesn't have the saving Nh7 here) 83.Kf7 Ng5+ 84.Kg6 Ne6 85.Nf3+ Kf4 86.Kf7 Nd8+ 87.Kf6 and the h pawn can't be stopped.

Btw, to review endgames like this, with 6 pieces or less, it's more trustworthy to use tablebases ( that tell you the "right" result with absolute certainty, not just give an evaluation like an engine.

Premium Chessgames Member

Bacrot should have played for white to end up with the g-pawn not the h-pawn.

As noted, the h-pawn can be played for zugswang with 75. Ng1 or Na4 later

Probably not easy to see, but the g-pawn can be attacked easier than the h-pawn. Dead draw if you understand what you are doing.


Dec-01-09  ycbaywtb: a lesson for everyone here apparently, even top GMs, not just patzers
Premium Chessgames Member


Bacrot should have played for Pono to end up with a g-pawn by playing Pg4 earlier even if it meant a pawn sac.

No substitute for centuries of theory and experience.


Premium Chessgames Member

Preferred technique was 50...Nd1 and 51...Pg4

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