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Magnus Carlsen vs Hikaru Nakamura
Aker Chess Challenge (2009)  ·  King's Indian Defense: Orthodox Variation. Gligoric-Taimanov System (E92)  ·  0-1
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Kibitzer's Corner
Jan-03-09
Premium Chessgames Member
  achieve: What a disastrous endgame by Magnus.

Not just 43. Nd5

Jan-03-09  percyblakeney: This looks like a finish that was blitzed out, for example 41. Rxg6+ followed by f5 should make it hard for black to draw.
Jan-03-09
Premium Chessgames Member
  notyetagm: Naka! Naka! Naka!

Woohoo!

Jan-03-09  champsylove: Great to see how Carlsen handles the Kings Indian, he has a very good record against it. This makes this game for Nakamura all the sweeter. A slight lapse for a d4 specialist!
Jan-03-09
Premium Chessgames Member
  notyetagm: 43 ?


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43 Nc3xBd5??


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<frogbert: good games by naka today, even if carlsen made an own-goal with <<<43. nxd5?? which just downright loses>>>, while the seemingly natural 43. re3 looked ok and a probable draw. instead he had to resign only three moves later, <<<since after the exchanges on d5, black's passers decide the game (how could carlsen miss that?)>>>>

43 ... Rd4xNd5 44 Rd6xRd5 c6xRd5 <passed pawns>


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An incredible oversight by Carlsen, 43 Nc3xBd5??, as pointed out by <frogbert>. With 43 Nc3xBd5?? Carlsen *voluntarily(!)* removes the <BLOCKADING> White c3-knight of the Black c4-passer. Moreover, after the further exchanges on d5, White is left in a position where he simply cannot stop the connected Black c4-,d5-passers.

<<<<Unbelievable that Carlsen would fail to visualize this losing position reached just 3(!!!) ply after 43 Nc3xBd5??.> Time trouble, perhaps?>>>

NIMZOWITSCH: Passed pawns must be blockaded!

Jan-03-09  messachess: The white N capture at 43. looks like the losing move. 43.Na4 holds the position.
Jan-03-09  maelith: Aron_Nimzowitsch will be mad at carlsen in this game, hehehe
Jan-03-09
Premium Chessgames Member
  notyetagm: <maelith: Aron_Nimzowitsch will be mad at carlsen in this game, hehehe>

Why would Nimzowitsch be mad? Carlsen failed to do as Nimzo instructed and lost as a result. Nimzo would be saying "See, I told you so." :-)

Jan-04-09  UnsoundHero: Interesting is 41 Rxg6+ Kf7 42 f5 Rh8!. If then 43 Nc3 Rd4 44 Nxd5 cxd5 45 Rxa6 Rxg4.
Jan-04-09  percyblakeney: <Interesting is 41 Rxg6+ Kf7 42 f5 Rh8!. If then 43 Nc3 Rd4 44 Nxd5 cxd5 45 Rxa6 Rxg4>

45. Rxa6 isn't the best though, engines give Ra3 keeping the g-pawn with what seems to be a winning position.

Jan-05-09
Premium Chessgames Member
  kellmano: <<maelith: Aron_Nimzowitsch will be mad at carlsen in this game, hehehe> Why would Nimzowitsch be mad? Carlsen failed to do as Nimzo instructed and lost as a result. Nimzo would be saying "See, I told you so." :-)>

You're entirely correct. From nimzo's writing style I imagine he enjoyed little more than a good gloating session.

Jan-06-09  Jafar219: Radjabov style!
Jan-14-09  Brown: <percyblakeney: <Interesting is 41 Rxg6+ Kf7 42 f5 Rh8!. If then 43 Nc3 Rd4 44 Nxd5 cxd5 45 Rxa6 Rxg4>

45. Rxa6 isn't the best though, engines give Ra3 keeping the g-pawn with what seems to be a winning position.>

To be considered as well is the line 41.Rxg6+ Kf7 42.f5 Rd4 43.Rh3 Rg8 where black may be just hanging on.

Another line, where there must be some improvements for white, is 41.Rx6+ Kf7 42.f5 Rd4 43.Rh3 Rxd1! 44.Rh7+ Ke8 45.Rh8+ Kd7 where 46.Rg7+ Kd6 47.Rxc8 c3 seems to be pretty sharp and unclear.

Jan-15-09  dhotts: Am I missing something obvious? What is wrong with 42.Nxd5 instead of 42.Kg3?

It seems to me that if 42...Rxd5 43.Rxg6+ Kf7 44.f5, it seems that Black has adequate defenses to stop the doubled pawn?

Or if 42...cxd5 then 43.Rxg6+ Kg7 44.Rxa6 and again White appears to have adequate defenses?

Apr-15-09  freeman8201: What was Carlsen thinking on last few moves? He gave Black two passed pawns!
Sep-13-09  TheMacMan: nakamura owns carlsen
Sep-13-09  chillowack: <TheMacMan: nakamura owns carlsen>

Really? What's their score so far?

This is a major scalp for Nakamura--is this the highest-rated player he's defeated so far?

Dec-09-09  lzromeu: What a blunder, 45kf2 seem to be a disaster.
Jan-25-13
Premium Chessgames Member
  FSR: A very un-Carlsen-like loss. Was this a rapid tournament?
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