Author: John Merlino
Date: 18:41:34 10/01/02
In this position against the Botvinnik personality of Chessmaster 9000, GM
Christiansen played Rg3. What do your programs say about the following
positions?
[D]8/p1p5/Pp1p2nk/1P1Bq1r1/2P1Pprp/1Q6/5RPP/3R3K b - - 0 53
And, how do they evaluate this positon that resulted from it? Larry played f3,
which certainly appeared to be good. Susan Polgar said that she thought Qh1+
would lead to a won endgame.
[D]8/p1p5/Pp1p2nk/1P1B3q/2P1Ppr1/1Q4p1/R5P1/3R1K2 b - - 0 57
And, finally, if Larry had played Qh1+, this position would have resulted. What
say your programs now? Do they play Qf3+, Ne5+ or Qh3? Any input from strong
humans would also be greatly appreciated....
[D]8/p1p5/Pp1p2nk/1P1B4/2P1Ppr1/1Q1K2p1/R5q1/3R4 b - - 0 59
In this position, the default Chessmaster personality on a P4-2.66 says this
after 20 hours:
Time Depth Score Positions Moves
0:00 1/3 1.05 1055 59...Qf3+ 60.Kc2 Ne5 61.Qxf3 Nxf3
0:00 1/4 1.13 2858 59...Qf3+ 60.Kc2 Qxb3+ 61.Kxb3
g2 62.Raa1 Rg3+ 63.Kc2 Ne5
0:00 1/4 0.48 7315 59...Ne5+ 60.Kc3 Qf3+ 61.Kb4 g2
62.Raa1 Qf2 63.Qh3+ Kg7
0:00 1/5 0.41 16736 59...Ne5+ 60.Kc3 Qf3+ 61.Kb4 g2
62.Rg1 Qxb3+ 63.Kxb3 Rg3+ 64.Kc2
Nf3
0:00 1/6 -0.31 39395 59...Ne5+ 60.Kc3 Qf3+ 61.Kb4 g2
62.Rg1 Qxb3+ 63.Kxb3 Rg3+ 64.Ka4
f3 65.Rd2
0:00 1/7 -0.24 106940 59...Ne5+ 60.Kc3 Qf3+ 61.Kb4 g2
62.Rg1 Qxb3+ 63.Kxb3 Rg3+ 64.Ka4
f3 65.Rd2 Kh5
0:01 1/8 0.14 275281 59...Ne5+ 60.Kd4 Qf3 61.Qxf3 Nxf3+
62.Kc3 g2 63.e5 g1=Q 64.Rxg1 Nxg1
65.Rh2+ Kg7 66.e6
0:02 1/9 -0.24 591662 59...Ne5+ 60.Kd4 Qf3 61.Qxf3 Nxf3+
62.Kc3 g2 63.e5 g1=Q 64.Rxg1 Nxg1
65.Rh2+ Kg5 66.e6 Rg3+ 67.Kd4
0:05 2/10 -0.22 1489211 59...Ne5+ 60.Kd4 Qf3 61.Qxf3 Nxf3+
62.Kc3 g2 63.e5 g1=Q 64.Rxg1 Nxg1
65.e6 Rg3+ 66.Kd4 Re3 67.Be4
0:15 3/11 0.01 4158392 59...Ne5+ 60.Kd4 Qf3 61.Qxf3 Nxf3+
62.Kc3 g2 63.e5 g1=Q 64.Rxg1 Nxg1
65.e6 Rg3+ 66.Kd4 Re3 67.Rh2+ Nh3
68.Be4
0:26 3/11 -0.12 6915388 59...Qf3+ 60.Kc2 Qxb3+ 61.Kxb3
f3 62.Kc3 g2 63.Rf2 g1=Q 64.Rxg1
Rxg1 65.Rxf3 Ne5 66.Rh3+ Kg7 67.Kd4
Rg2
0:47 4/12 -0.13 12849313 59...Qf3+ 60.Kc2 Qxb3+ 61.Kxb3
f3 62.Kc3 g2 63.Rf2 g1=Q 64.Rxg1
Rxg1 65.Rxf3 Ne5 66.Rh3+ Kg7 67.Kd4
Rd1+ 68.Kc3 Kf6
3:29 5/13 -0.21 55279224 59...Qf3+ 60.Kc2 Qxb3+ 61.Kxb3
f3 62.Kc3 f2 63.Rf1 Ne5 64.Rfxf2
gxf2 65.Rxf2 Rg3+ 66.Kc2 Kg7 67.Be6
Ra3 68.Kb1 Re3
5:42 5/13 -0.31 89640283 59...Qh3 60.Rg1 g2+ 61.Kc2 Rg3
62.Qb2 Ne5 63.c5 Qh2 64.Raa1 bxc5
65.Qc1 Qh4 66.Qd2 Nf3
16:14 6/14 -0.32 255878069 59...Qh3 60.Rg1 g2+ 61.Kc2 Rg3
62.Qb2 Ne5 63.c5 Qh2 64.Raa1 Re3
65.Qc1 Re2+ 66.Kb3 bxc5 67.Qc3 f3
1:41:46 7/15 -0.57 1544549413 59...Qh3 60.Kd4 Qh5 61.e5 f3+ 62.Kc3
Qxe5+ 63.Kb4 f2 64.Qf3 Rf4 65.Qh1+
Kg7 66.Qf1 Ne7 67.Bg2 Qe3 68.Qe2
Nf5 69.Qh5
4:47:54 8/16 -0.64 124418381 59...Qh3 60.Kd4 Qh5 61.e5 f3+ 62.Kc3
Qxe5+ 63.Kb4 f2 64.Rad2 Ne7 65.Rh1+
Kg7 66.Bg2 Qc5+ 67.Kc3 Nf5 68.Rd3
Ne3 69.Kd2 Nxg2 70.Rxg3
20:08:19 9/17 -0.63 1364298452 59...Qh3 60.Kc2 Qh2+ 61.Kb1 g2
62.e5 g1=Q 63.Rxh2+ Qxh2 64.exd6
cxd6 65.Bf3 Rg3 66.Rxd6 Qf2 67.Qd3
Rg1+ 68.Bd1 Qe3 69.Qc2 f3 70.Qh2+
Kg5
Finally, for those who do not have it yet, here is the whole game:
[Event "ICC 2 120 u"]
[Site "Internet Chess Club"]
[Date "2002.09.29"]
[Round "-"]
[White "CM9000 (Botvinnik)"]
[Black "LarryC"]
[Result "1-0"]
[ICCResult "Black resigns"]
[WhiteElo "2800"]
[BlackElo "2559"]
[Opening "English: Nenarokov variation"]
[ECO "A28"]
[NIC "EO.08"]
[Time "10:00:56"]
[TimeControl "120+120"]
1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+
8. bxc3 Ne5 9. e3 d6 10. Be2 Ng6 11. Bxf6 Qxf6 12. O-O O-O 13. Qc2 Re8 14.
Rfd1 Nf8 15. Bd3 Ne6 16. Nb3 Rb8 17. a4 Qe7 18. a5 Bd7 19. a6 b6 20. Nd4 Nc5
21. Nb5 Bxb5 22. cxb5 Qf6 23. Bc4 Re5 24. Bd5 Rbe8 25. Rd4 Ne6 26. Rd2 g6
27. Ra4 Kg7 28. Rd1 Re7 29. Rb4 g5 30. Bc6 Qg6 31. Qb2 f5 32. Qb1 Qf6 33.
Bd5 f4 34. e4 Nf8 35. f3 h5 36. Qc2 Ng6 37. Qa2 Kh6 38. Qd2 Rg7 39. Qd4 g4
40. fxg4 Nh4 41. Rb2 Rxg4 42. Kh1 Ng6 43. Rf2 Qe7 44. Qd2 Reg5 45. Ra1 h4
46. c4 Qe5 47. Rc1 Kg7 48. Bc6 Qe7 49. Rcf1 Re5 50. Qc3 Kh6 51. Bd5 Reg5 52.
Qb3 Qe5 53. Rd1 Rg3 54. hxg3 hxg3 55. Ra2 Rg4 56. Kg1 Qh5 57. Kf1 f3 58. Ke1
f2+ 59. Kd2 Rh4 60. Qe3+ Kg7 61. Rf1 Qe5 62. Kc2 Rh2 63. Qf3 Qf4 64. e5 Qxf3
65. Bxf3 Nxe5 66. Bd5 Rh5 67. Ra3 Rg5 68. Kd2 Ng6 69. Re3 Ne5 70. Ke2 Kf6
71. Rh1 Ng6 72. Rh7 {Black resigns} 1-0
jm
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