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Lajos Portisch vs Viktor Korchnoi
Candidates Match (1983), Bad Kissingen FRG, rd 6, Apr-07
Gruenfeld Defense: Russian. Byrne (Simagin) Variation (D97)  ·  1/2-1/2

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Dec-04-16  offramp: Game 6 of this quarterfinal match, played on 7th April 1983. Korchnoi was winning 3-0 with 2 draws.

Despite his lead, Korchnoi is not in a peaceful mood and he plays one of the earliest exchange sacrifices I have ever seen.


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12...Rxf3!
I always imagine Portisch as a player with a psychopathic desire to keep the position calm and stable, and soon he has indeed steadied his ship.


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23. Bd4.
Towards the end of the session Korchnoi goes astray, and soon it is obvious that Portisch has serious winning chances.


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42...b2. He has to free the bishop!
*****


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Here White played 49. Nc4, but 49. Nd7 with the idea of Nf8+ and ♙e6 looks very strong.

Very shortly after, in this position,


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Portisch faced a crucial decision. He was worried about the h-pawn and he played 50. Ke3. 50. Kc5 might have won. 50. Kc5 h4 51. Rh7 Bg2 52. f5+! (so that there is a skewer later on) gxf5 53. Rxh4 Rxa7 54. Rh6+ Kf7 55. Rh7+ .

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Round 6
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Gruenfeld 5Q3
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