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Viktor Korchnoi vs Friso Nijboer
NED-chT (1993), rd 9
King's Indian Defense: Orthodox Variation. Classical System Misc. Lines (E98)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
May-06-04  jaime gallegos: if 33... Rc6 34. Rc1 winning
May-06-04  Archerforthelord: don't forget 33...Ncd7 34. Bxf8
Sep-12-06
Premium Chessgames Member
  plang: White's moves aren't that hard to find after his piece sacrifice 18 Nc5. 23..Bh3 and 24..Bf1 are totally illogical as black has to return all the sacrificed material after 26 d7 anyway. I am a little surprised that Korchnoi included this game in his book as one of his 50 games with white. In his long and illustrious career I'm sure he had many more competitive and interesting struggles than this one.
Apr-07-07  KingG: Well, Kasparov also selected this game in his book OMGP V. Maybe the game is a bit one sided, but it's still very nice, and i found it to be quite instructive. Whenever my opponents play ...c5 in this variation, i always now go for the piece sac. So far i have always won after playing it, i guess because the resulting positions aren't that easy to defend.
Apr-07-07
Premium Chessgames Member
  keypusher: <I am a little surprised that Korchnoi included this game in his book as one of his 50 games with white. In his long and illustrious career I'm sure he had many more competitive and interesting struggles than this one.>

Tough crowd! :-)

Aug-21-08  computer chess guy: 24. ♔h1! deserves mention - it is maybe not difficult to see he will get his material back, but IMO not obvious that this is also the most efficient way to win.
Aug-31-20  Ulhumbrus: With 18 Nxc5 Korchnoi plays a Bronstein style piece sacrifice, gaining two pawns and a pawn roller in return for the piece.

If we compare this with a variation of the game Korchnoi vs Fischer, 1970 if in that game Korchnoi had tried to sacrifice a knight on c5 by 18 Ba3 and if Fischer had proceeded as he advised in the game by 18...h5, on 19 Nxc5 dxc5 20 Bxc5 the difference between the present game and the variation of the game Korchnoi vs Fischer, 1970 is that here Black's king's rook is on f8 instead of on g6, which is to say that it is two moves behind in development compared to the variation of the game Korchnoi vs Fischer, 1970

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