Author: Roy Eassa
Date: 09:17:35 06/04/02
Go up one level in this thread
On June 04, 2002 at 05:03:42, Andrew Williams wrote:
>This is from an ICC game between PostModernist and Crafty. The key here is Nb2!
>How long does it take your program to find it?
>
>[D]1r1r2k1/p5pp/4ppq1/2b5/nP6/4P1P1/P2BQ1BP/R2R3K b - b3 0 1 bm Nb2
>
>It took crafty 10 seconds on Bob's quad Xeon 700MHz (with the benefit of full
>hashtables of course). It takes sixty seconds for PM to find it on my Athlon
>1200.
>
Fritz 7 (1.2 GHz AMD) doesn't seem all that convinced (stopped after ~1.5
minutes):
1...Bd6 2.Be1 Nb6 3.Rac1 Be5 4.b5 Rxd1 5.Rxd1 f5
= (-0.07) Depth: 8/22 00:00:00 240kN
1...Bd6 2.Be1 Nb6 3.Rac1 Be5 4.b5 f5 5.Rxd8+ Rxd8 6.Qf3
= (-0.13) Depth: 9/22 00:00:00 492kN
1...Bd6 2.Be1 Nb6 3.b5 Nd5 4.Rac1 Be5 5.Rc6 Rb6 6.Bf2 Rxc6
= (-0.04) Depth: 10/25 00:00:01 1000kN
1...Bd6 2.Be1 Nb6 3.b5 Nd5 4.Rac1 Be5 5.e4 Nc7 6.Rxd8+ Rxd8 7.Bf2
= (0.00) Depth: 11/25 00:00:04 2483kN
1...Bd6 2.Be1 Nb6 3.b5 Be5 4.Rxd8+ Rxd8 5.Rd1 Rc8 6.Qf3 f5 7.e4 Rf8
= (0.00) Depth: 12/28 00:00:11 6762kN
1...Nb2!
= (-0.04) Depth: 12/28 00:00:14 8488kN
1...Nb2!
= (-0.19) Depth: 12/28 00:00:15 9391kN
1...Nb2 2.bxc5 Nxd1 3.Rxd1 Qc2 4.Bf3 Rb2 5.Qa6 Rxd2 6.Rxd2 Qxd2 7.Qxe6+ Kf8
8.Qc8+ Kf7
= (0.00) Depth: 13/29 00:00:24 15550kN
1...Nb2 2.bxc5 Nxd1 3.Rxd1 Qc2 4.Bf3 Rb2 5.Qa6 Rb1 6.Re1 Rxd2 7.Qxe6+
= (-0.13) Depth: 14/32 00:00:54 35414kN
>
>The full game:
>
>[Event "ICS rated blitz match"]
>[Site "204.178.125.65"]
>[Date "2002.06.04"]
>[Round "-"]
>[White "PostModernist"]
>[Black "crafty"]
>[Result "0-1"]
>[WhiteElo "2737"]
>[BlackElo "2882"]
>[TimeControl "300+3"]
>
>1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Ne5 Bd7 8.
>Na3 cxd4 9. Naxc4 Bc5 10. Qb3 O-O 11. Qxb7 Nxe5 12. Nxe5 Rb8 13. Qf3 Nd5
>14. Bg5 f6 15. Nxd7 Qxd7 16. Bc1 Rfc8 17. Rd1 Qf7 18. e3 dxe3 19. fxe3 Rd8
>20. Qe2 Qg6 21. Kh1 Nb6 22. Bd2 Na4 23. b4 Nb2 24. bxc5 Nxd1 25. Rxd1 Qc2
>26. Bh3 f5 27. e4 Rb1 28. Rxb1 Qxb1+ 29. Qe1 Qxe1+ 30. Bxe1 Rd1 31. exf5
>Rxe1+ 32. Kg2 exf5 33. Bxf5 Re5 34. Bd3 Rxc5 35. Kf3 Kf7 36. Ke4 Ke6 37.
>Kd4 Kd6 38. a4 h6 39. Bc4 Re5 40. Bd3 Re1 41. a5 Rh1 42. h4 Rh3 43. Be2
>Rxg3 44. h5 g5 45. hxg6 Rxg6 46. a6 Ke7 47. Kc5 h5 48. Bd3 Rb6 49. Bf1 h4
>50. Bh3 Rb3 51. Bg2 h3 52. Bd5 Rc3+ 53. Kd4 Rc1 54. Bf3 h2
>{PostModernist resigns} 0-1
>
>
>Andrew
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.