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Wang Yue vs Sergei Movsesian
XVII Pamplona International (2007), Pamplona ESP, rd 6, Dec-27
Queen's Gambit Declined: Ragozin Defense (D38)  ·  1-0



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Kibitzer's Corner
Premium Chessgames Member
  tamar: I was perplexed when Carlsen lost in this 15...Nxc5 variation last Corus Topalov vs Carlsen, 2007 and am again perplexed why such a solid player as Movsesian would try it again, with only the deviation 16...Bd7.

What is Black's play here? Can anyone explain why this might work in some variations?

It looks the same in both games. White makes a couple of defensive moves, and has an overwhelming advantage.

Jan-09-08  Gilmoy: White's exchange sac invites Black to trap his own Q with 14..a5. After 15.b5, White threatens Nd4-b6-Bb5. Black is badly congested -- four of his pieces have no good moves. The alternative idea Re8-Nf8 just returns the exchange, since Black's Q must bolt through the a5-d7 airhole as soon as White plays b6, and Bb5 skewers the R.

So Black is losing material regardless. He chooses to "sac" the N back, going down B+N for R + counterplay on c. 16..Bd7 instead of Be6 lets him swap his weak d-pawn for White's annoying b-pawn, which is probably correct.

28..Rxb3 29.Bc6 might have made White sweat more -- but Black must have felt that R vs. BB held no hope. 28..a4?! lets the N escape, and White has Bd5 to stop the pawn at a2 (plus he can now afford to just sac the B for it). Hence Black plays to control 5, and resigns as soon as the B finds another diagonal.

Premium Chessgames Member
  tamar: <After 15.b5, White threatens Nd4-b6-Bb5. Black is badly congested -- four of his pieces have no good moves.>

Very good explanation, I thought the queen position looked dire, but did not see your mechanism, which makes the knight sac mandatory to avoid losing lots more time.

And while 16...Bd7 improves slightly on 16...Be6, Black never has any real attack. White even won with 17 Qc1 Rc8 18 Qa1 in another game, but Wang Yue's idea with 17 Be2 I like better.

I will be surprised if this line is ever repeated.

Premium Chessgames Member
  tamar: A hidden point of White's defense is that the Black Queen is attack after the plausible 19...Bb5 20 Kd2

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