Author: George Tsavdaris
Date: 16:25:14 06/08/03
This is from Chessmaster's classic games:
In the following position from a game between chess engines
Belle Vs Chess -1979, and after 44.e5 the annotator for Chessmaster said:
"A fine pawn sacrifice which produces a powerful passed d-pawn."
And indeed after 44.e5 if 44...Bxe5 then 45.Nxe5 dxe5 and white is
winning due to the passed d-pawn.
But the few engines i tried (Shredder7.04 / Fritz8.00.8 D-Junior8/ZX /
Chess Tiger 15.0ga) don't play 44.e5 because after this instead of
44...Bxe5 they play 44...Rxc4. The game after 44...Rxc4
looks drawn to me but after long analysis seems it is a win for white
(Rook Vs Knight in the endgame).
So indeed 44.e5 maybe the best but not for the reason the annotator
said. Because after the Rxc4 there is no passed pawn.
Most programs here prefer 44.Qxb3 with a big score, that is steadily
decreasing.
So what is the best move after all? Any program finds e5?
[D]3q2k1/2n2pb1/3p4/2pP2p1/2N1P2p/1p1Q1P2/2r2BPP/3R2K1 w - - 0 44
Here is the game:
[Event "??"]
[Site "MyTown"]
[Date "1979.??.??"]
[Round "?"]
[White "Belle"]
[Black "Chess"]
[Result "1/2-1/2"]
[ECO "A79"]
[Annotator "?"]
[PlyCount "125"]
[TimeControl "40/2400:40/2400:2400"]
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2
O-O 9. O-O Re8 10. Nd2 Na6 11. f3 Nc7 12. a4 b6 13. Nc4 Ba6 14. Bg5 h6 15. Bh4
g5 16. Bf2 Nh5 17. Ne3 Bc8 18. Qc2 Nf4 19. Bc4 Bd7 20. Rfd1 Qf6 21. Bg3 Nh5 22.
Be1 Nf4 23. Kh1 a6 24. Bg3 b5 25. axb5 axb5 26. Rxa8 Rxa8 27. Bf1 b4 28. Ne2 b3
29. Qb1 Nh5 30. Bf2 Nf4 31. Nc4 Nxe2 32. Bxe2 Bb5 33. Bg3 Ra4 34. Qc1 Bf8 35.
Rd2 Qd8 36. Qf1 h5 37. Kg1 h4 38. Bf2 Bg7 39. Ne3 Bxe2 40. Qxe2 Ra1+ 41. Rd1
Ra2 42. Qd3 Rxb2 43. Nc4 Rc2 44. e5 Bxe5 45. Nxe5 dxe5 46. Qxb3 Re2 47. Kf1 c4
48. Qb7 Ra2 49. Bb6 h3 50. Qxc7 Qf6 51. Qd8+ Qxd8 52. Bxd8 Rxg2 53. Re1 $2 (53.
d6 $18 {[%emt 0:00:00]}) 53... c3 54. Rxe5 c2 55. Re8+ Kg7 56. Bxg5 Rxg5 57.
Rc8 Rg2 58. d6 Rxh2 59. d7 Rd2 60. Kg1 Rxd7 61. Rxc2 Rd3 62. Rf2 Kf6 63. Kh2
1/2-1/2
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