Author: Dann Corbit
Date: 12:20:28 06/05/02
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.
>
>
>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
Beowulf lays a titanic egg:
[1]W > setboard 1r1r2k1/p5pp/4ppq1/2b5/nP6/4P1P1/P2BQ1BP/R2R3K b - b3 0 1
[1]B > go
[1]B >
Current Position = 0.61
Number of Possible Moves = 46
6 -11? 40 43091 Bxb4 Bxb4 Rxd1+ Qxd1 Rxb4 Qd8+ Kf7 Qd7+ Kg8
Qxe6+
6 7 83 80929 Bb6 e4 Nb2 Rf1 Nd3 a4
6 22 166 155633 Be7 Be1 Nb6 Qa6 Rxd1 Rxd1
7 9 231 218058 Be7 Be1 Rxd1 Rxd1 Bxb4 Bxb4 Rxb4 Rd8+ Kf7 Rd7+
Kf8 Rxa7
7 19 352 338780 Bb6 e4 Nb2 Rf1 Nd3 Bh3 Qf7
8 8 576 595135 Bb6 e4 Qf7 Rac1 Nb2 Rf1 Nd3 Rc2
9 17 1684 1788656 Bb6 e4 Qf7 a3 Bd4 Rac1 Bb2 Bf4 Bxc1 Bxb8 Rxb8
Rxc1
10 5 5426 5871993 Bb6 Be1 Rxd1 Qxd1 Qe8 Qb3 Rc8 Rd1 Rc7 Bd2
10 15 10613 11330824 Bd6 e4 Nb2 Rdb1 Be5 a4 Qe8 b5 Nc4 Bf4 Bxf4 Qxc4
11 13 24077 23818769 Bd6 Be1 Be5 Rac1 Qf7 a3 Rxd1 Qxd1 Nb6 Rc5 Qd7
Time Taken : 1001 Seconds
Total Nodes Searched : 86471114 (87.7% Qui)
Total Nodes Evaluated : 75858811
Cuts : Delta 20157091 : SEE 23940025 : Mate 0
: Razor 5420839 : Eval 32580557
Extensions : Check 1443578 : OneRep 79827 : CMThreat 21195
: Pawn 1769 : Recap 388258 : RevCheck 4479
Hash Stores (Size) : 8609615 (8388593)
Hash Probes (Hits) : 56570120 (5863513)
EGTB Probes (Hits) : 0 (0)
Move Ordering : 55.0%
Best Move = Bd6
[1]B >
The move ordering is simply horrible. Looks like this position has uncovered
some serious problem.
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.