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Boris Spassky vs Viktor Korchnoi
Korchnoi - Spassky Candidates Final (1977/78), Belgrade YUG, rd 4, Nov-28
French Defense: Winawer. Advance Variation (C19)  ·  1/2-1/2
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Aug-17-09  Ulhumbrus: 12 exf6 moves the e pawn a third time to exchange itself for a f pawn moved once.

17 dxe5 seems consistent with 16 Re1, opening the e file for White's Rook.

After 17 c4?! Nh3 18 Bf1 White's KB will be unable to defend the c4 pawn as the B will be tied to the cdefence of the g2 pawn.

An alternative is 17 Qb3 unpinning in advance the N on f3. One variation is 17 Qb3 Bh3 18 Bf1 cxd4 19 cxd4 exd4 20 Nxd4 Bxg2 21 Bxg2 Nxd4 22 Qh3+ Kb8 23 Kh1 Nf4 24 Bxf4 Qxf4 25 Re7 Nc6 26 Rb1 Nxe7 27 Rxb7+ Ka8 28 Rb4+ winning. Admittedly that is only one variation.

17 c4 prepares to attack the N on c6 by d5, but Korchnoi isn't going to try to save that Knight. He is going to sacrifice it.

May-29-11  Ulhumbrus: An alternative to 13 cxd5 is 13 dxc5 with the idea of a5 and a6 when on ...b6 the c5 pawn will attack the b6 pawn
Dec-30-14  Conrad93: After 18. Bf1, black could have gained a small advantage with 18...Bxg2!?


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19. Bxg2 Qg7 20. Nh4!


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20...Nf4! 21. Bxf4 Rxd4


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Black is better.

May-10-15  Howard: This game seems a bit overrated. Timman included it, after all, in his Art of Chess Analysis.

Was it really THAT good ?!

May-10-15  Retireborn: <Howard> Yes.
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