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Dimitri Borisovich Gurevich vs Hikaru Nakamura
US Championship (2007), Stillwater USA, rd 8, May-22
Queen's Gambit Declined: Albin Countergambit. Fianchetto Variation (D09)  ·  0-1
ANALYSIS [x]

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Given 16 times; par: 81 [what's this?]

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Kibitzer's Corner
May-23-07  MaxxLange: I haven't checked this thoroughly, yet, but it looks like 45 a3? is the beginning of Gurevich's collapse. Then 45...Bc3! threatens ...Bb2 winning a pawn, and also threatens to trap the g5 knight with ...Bf6. It seems that Gurevich missed the ...Bf6 threat altogether; so, he then had to give up an exchange to keep from losing a piece outright.

If all that is true, then the psychology of the blunder 49. Ba7?? seems a bit more understandable. People tend to make more mistakes after their confidence is broken by having just missed something.

May-23-07  MaxxLange: Come to think of it, 40. Nxh7 mayy have been the real root of all this. That's what put the Knight into a vulnerable situation in the first place, and the sequence from there until 44. Be3 looks forced.
May-24-07  MaxxLange: Update! I thought, and Fritz 10 (Blundercheck, threshold 50, time 60 sec, IBM T42 Thinkpad) confirms: 44.Be3? is the losing move. White must play 44. Bg1! , with a double attack. So, 44..Rd2 45. Rxd2 Bxd2 and White saves his Knight with 46. Nh3

By the way, Fritz 10 thinks that White threw away a clear win by trading Queens...the evaluation dropped by 3 full pawns, and Black was back in the game.

May-24-07  HLecter: is gurevich`s rating correct?
May-24-07  Marmot PFL: 2.Nf3 - never let Hikaru play the Albin.
Dec-23-07  alexrawlings: At move 15 when white plays 15 Qxb7, isn't 15 .. Rxb8 a stronger move, regaining a pawn at b2?
Dec-23-07
Premium Chessgames Member
  Phony Benoni: <alexrawlings> After 15...Rb8, 16.Bxf6 looks possible. The bishop is immune, and 16...Rxb7 17.Bxd8 leaves Black's rook on b7 under attack with White also threatening 18.Bf6 winning the exchange.
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