Author: Robert Hyatt
Date: 12:28:02 03/01/06
Go up one level in this thread
On March 01, 2006 at 14:14:04, Kurt Utzinger wrote:
>On March 01, 2006 at 13:36:20, Uri Blass wrote:
>
>>Movei lost against Jonny after blundering by h4
>>
>>I find that programs have problem to find that h4 is losing
>>
>>Here is the full game and analysis by Glaurung
>>
>>[Event "CEGT 40/40 (2Ghz)"]
>>[Site "?"]
>>[Date "2006.02.28"]
>>[Round "2.1"]
>>[White "Jonny 2.89"]
>>[Black "Movei 00.8.352"]
>>[Result "1-0"]
>>[ECO "B22"]
>>[PlyCount "151"]
>>[EventDate "2006.02.??"]
>>
>>1. e4 c5 2. c3 e5 3. Nf3 Nc6 4. Bb5 a6 5. Qa4 Nf6 6. Bxc6 dxc6 7. Nxe5 Qc7 8.
>>f4 Bd6 9. d3 Bxe5 10. fxe5 Qxe5 11. O-O Qh5 12. Nd2 O-O 13. Nf3 Bg4 14. Bf4
>>Rfe8 15. Qb3 b5 16. c4 Qg6 17. Qc3 Nd7 18. Kh1 Rad8 19. Rae1 b4 20. Qc2 Kh8 21.
>>Re3 Bh5 22. Nh4 Qf6 23. Rg3 Nf8 24. Rg5 Bg6 25. Nxg6+ fxg6 26. Rg3 Ne6 27. Qc1
>>Nxf4 28. Rxf4 Qd4 29. b3 Rf8 30. Rgf3 Rf6 31. g3 g5 32. Rxf6 gxf6 33. Qg1 Qd6
>>34. Qa1 Kg7 35. Rf5 h6 36. Kg2 Re8 37. Rf1 Re6 38. Qd1 Qd4 39. Qc2 Rd6 40. Rd1
>>Qe5 41. Qf2 h5 42. Qe2 g4 43. Qe3 Rd7 44. Rf1 Kg6 45. Qe2 Qd4 46. Rd1 Rd8 47.
>>Qf1 Qb2+ 48. Kg1 Qe5 49. Qe2 Qc3 50. Qe3 Qc2 51. Qd2 Qxd2 52. Rxd2 f5 53. Rf2
>>fxe4 54. dxe4 Rd1+ 55. Kg2 Re1 56. Rf4 Re2+ 57. Rf2 Rxe4 58. Kf1 Rd4 59. Ke1
>>Rd8 60. Rd2 Rxd2 61. Kxd2 Kg5 62. Ke3 Kf5 63. Kd3 h4 64. gxh4 Kg6 65. Ke4 Kh5
>>66. Kf5 Kxh4 67. Kg6 a5 68. Kf6 Kh5 69. Kf5 Kh4 70. Kg6 Kh3 71. Kg5 Kxh2 72.
>>Kxg4 Kg1 73. Kf5 Kf2 74. Ke6 Ke3 75. Kd6 Kd4 76. Kxc6 1-0
>>
>>
>>
>>79972: Jonny 2.89 - Movei 00.8.352, CEGT 40/40 (2Ghz) 2006
>>[D]8/8/p1p5/2p2k1p/1pP3p1/1P1K2P1/P6P/8 b - - 0 1
>
> Hi Uri
> Ktulu 7.5 would never plays 63...h4?? and after this
> move, the program sees a win very fast for White.
> Kurt
>
>Ktulu 7.5 - Utzinger,K, Blitz:50'+3"
>8/8/p1p5/2p2k2/1pP3pp/1P1K2P1/P6P/8 w - - 0 1
>
>Analysis by Ktulu 7.5:
>
>2.Ke3 h3 3.Kd3 a5 4.Ke3 Ke5 5.Kd3 Kf5
> = (0.00) Tiefe: 13 00:00:00 33kN
> = (0.00) Tiefe: 18 00:00:01 941kN
>2.gxh4 Kg6 3.Ke4 Kh5 4.Kf5 Kxh4 5.Kg6 Kh3 6.Kg5 a5 7.Kf5 Kh4 8.Kg6
> ² (0.30) Tiefe: 18 00:00:03 2481kN
> +- (6.07) Tiefe: 20 00:00:34 25899kN
>
>(Utzinger, MyTown 01.03.2006)
Crafty leaves h4 very quickly. If I force it to search h4, here's what it
discovers, using just one CPU on my dual 2.8 xeon:
28 5:59 0.14 1. ... h4 2. gxh4 Kg6 3. Ke4 Kh5 4.
Kf5 Kxh4 5. Kg6 Kh3 6. Kg5 a5 7. Kf5
Kxh2 8. Kxg4 Kg1 9. Kf5 Kf2 10. Ke6
Ke3 11. Kd6 Kd4 12. Kxc6 a4 13. Kb5
a3 14. Kc6
28-> 5:59 0.14 1. ... h4 2. gxh4 Kg6 3. Ke4 Kh5 4.
Kf5 Kxh4 5. Kg6 Kh3 6. Kg5 a5 7. Kf5
Kxh2 8. Kxg4 Kg1 9. Kf5 Kf2 10. Ke6
Ke3 11. Kd6 Kd4 12. Kxc6 a4 13. Kb5
a3 14. Kc6
29 8:13 +1 1. ... h4
29 17:26 3.10 1. ... h4 2. gxh4 Kg6 3. Ke4 Kh5 4.
Kf5 Kxh4 5. Kg6 Kh3 6. Kg5 Kxh2 7.
Kxg4 Kg1 8. Kf5 Kf2 9. Ke6 Ke3 10.
Kd6 Kd4 11. Kxc6 Ke5 12. Kxc5 a5 13.
Kb5 Kd4 14. Kxa5 Kc5
29-> 17:26 3.10 1. ... h4 2. gxh4 Kg6 3. Ke4 Kh5 4.
Kf5 Kxh4 5. Kg6 Kh3 6. Kg5 Kxh2 7.
Kxg4 Kg1 8. Kf5 Kf2 9. Ke6 Ke3 10.
Kd6 Kd4 11. Kxc6 Ke5 12. Kxc5 a5 13.
Kb5 Kd4 14. Kxa5 Kc5
Normal search dumps h4 because it seems to give white a slight edge:
19 1.93 -0.01 1. ... h4 2. Ke3 hxg3 3. hxg3 a5 4.
Kd3 Ke5 5. Ke3 Kf5
19-> 2.07 -0.01 1. ... h4 2. Ke3 hxg3 3. hxg3 a5 4.
Kd3 Ke5 5. Ke3 Kf5
20 2.77 -0.01 1. ... h4 2. Ke3 hxg3 3. hxg3 a5 4.
Kd3 Ke5 5. Ke3 Kf5
20-> 3.00 -0.01 1. ... h4 2. Ke3 hxg3 3. hxg3 a5 4.
Kd3 Ke5 5. Ke3 Kf5
21 6.61 0.02 1. ... h4 2. gxh4 Kg6 3. Ke4 Kh5 4.
Kf5 Kxh4 5. Kg6 a5 6. Kh6 g3 7. hxg3+
Kxg3 8. Kg5 Kf2 9. Kf6 Ke1 10. Ke6
Kd2 11. Kd6 Kc3 12. Kxc5
21 10.86 -0.01 1. ... Kf6 2. Ke4 Ke6 3. Kf4 Kf6 4.
Ke4
21-> 11.03 -0.01 1. ... Kf6 2. Ke4 Ke6 3. Kf4 Kf6 4.
Ke4
22 12.75 -0.01 1. ... Kf6 2. Ke4 Ke6 3. Kf4 Kf6 4.
Ke4
22-> 13.42 -0.01 1. ... Kf6 2. Ke4 Ke6 3. Kf4 Kf6 4.
Ke4
23 16.82 -0.01 1. ... Kf6 2. Ke4 Ke6 3. Kf4 Kf6 4.
Ke4
23-> 17.97 -0.01 1. ... Kf6 2. Ke4 Ke6 3. Kf4 Kf6 4.
Ke4
24 22.67 -0.01 1. ... Kf6 2. Ke4 Ke6 3. Kf4 Kf6 4.
Ke4
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