Kortchnoi,V (2695) - Karpov,An (2700) [D53]weak pawns IQP: avoid exchange, weak pawns IQP:, 1981

1. c4 e6 2. Nc3 d5 3. d4 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. Rc1 dxc4 8. e3 c5 9. Bxc4 cxd4 10. exd4!?
tSlD-Tj+
Xx+-LxX-
-+-+xS-X
+-+-+-+-
-+bP-+-B
+-N-+n+-
pP-+-PpP
+-RqK-+r

Playing for the win. 10... Nc6 11. O-O Nh5 12. Bxe7 Nxe7 13. Bb3 [13. Ne5] 13... Nf6 14. Ne5 Bd7 15. Qe2 Rc8
-+tD-Tj+
Xx+lSxX-
-+-+xS-X
+-+-N-+-
-+-P-+-+
+bN-+-+-
pP-+qPpP
+-R-+rK-

16. Ne4? The wrong plan, with no real justification. Keep the pieces on! 16... Nxe4 17. Qxe4 Bc6 18. Nxc6 Rxc6 19. Rc3?! [19. Rxc6 Nxc6 20. d5 exchanges the IQP leaving nothing much left to play for.] 19... Qd6 20. g3?! Rd8 21. Rd1 Rb6 22. Qe1 Qd7 23. Rcd3 Rd6 24. Qe4 Qc6 25. Qf4 Nd5
-+-T-+j+
Xx+-+xX-
-+dTx+-X
+-+s+-+-
-+-P-Q-+
+b+r+-P-
pP-+-P-P
+-+r+-K-

26. Qd2 Qb6 27. Bxd5? The Bishop was a compensating plus. [27. a3 Ne7 28. Qf4 Nf5 29. d5 Ne7 30. Qe3 e.g. 30... Qxe3 31. fxe3 exd5 [31... Nxd5 32. e4] 32. e4 d4 33. e5 Rb6 [33... R6d7 34. e6] 34. Rf1] 27... Rxd5 28. Rb3 Qc6 29. Qc3 Qd7
-+-T-+j+
Xx+d+xX-
-+-+x+-X
+-+t+-+-
-+-P-+-+
+rQ-+-P-
pP-+-P-P
+-+r+-K-

30. f4 looks impetuous, but ...e5 was threatened 30... b6 31. Rb4 b5 32. a4 bxa4 33. Qa3 a5 34. Rxa4 Qb5 35. Rd2 e5 36. fxe5 Rxe5 37. Qa1 Qe8 38. dxe5 Rxd2 39. Rxa5
-+-+d+j+
+-+-+xX-
-+-+-+-X
R-+-P-+-
-+-+-+-+
+-+-+-P-
-P-T-+-P
Q-+-+-K-

White has allowed a monster Rook on the seventh 39... Qc6 40. Ra8+ Kh7 41. Qb1+ g6 42. Qf1 Qc5+ [42... Qxa8 43. Qxf7+ Kh8 44. Qf6+ Kg8 45. Qxg6+ Kh8] 43. Kh1 Qd5+ 0-1
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This document (Canon\canon420.html) was last modified on 13 Aug 2005 by [cool blue cat]

Dr. Dave