Author: Pete Galati
Date: 07:19:23 04/07/00
Go up one level in this thread
On April 07, 2000 at 03:09:34, Will Singleton wrote:
>On April 07, 2000 at 02:28:15, Pete Galati wrote:
>
>>On April 07, 2000 at 01:47:44, Will Singleton wrote:
>>
>>>This occurred in a game tonight on ICC. A program that considers king position
>>>and pawn majorities should be able to solve it quickly (mine doesn't). Might be
>>>a good test position for amateur programs. The winning move appears to be hxg4.
>>>
>>>[D]8/1p1k4/8/1Pp2p2/2P2Ppp/P3K2P/8/8 w - - 0 45
>>[...]
>>>45. hxg4 fxg4 46. a4 b6 47. f5 h3 48. Kf2 h2 49. Kg2 g3 50. f6 Kd6 51. f7
>>>Ke7 52. a5 bxa5 53. b6 Kxf7 54. b7 Ke6 55. b8=Q Kd7 56. Qxg3 a4 57. Kxh2 Kc6
>>>58. Qa3 Kb7 59. Qxa4 Kc7 60. Kg3 Kd6 61. Kf4 Ke6 62. Qa6+ Kd7 63. Ke5 Kc7
>>>64. Kd5 Kb8 65. Qh6 Kb7 66. Kxc5 Kc8 67. Qh7 Kd8 68. Kd6 Ke8 69. Qe7#
>>>{Black checkmated}
>>>1-0
>>
>>Amy didn't look at PxP for very long. I probably would have been shortsighted
>>enough to take the pawn though, depends on how clearly I was thinking.
>>
>>Pete
>>
>>
>> Amy version Winboard Version 0.7, Copyright (C) 2000 Thorsten Greiner
>> Amy comes with ABSOLUTELY NO WARRANTY; for details type 'warranty'
>> This is free software, and you are welcome to redistribute it
>> under certain conditions; type 'distribution'
>>
>> Multiprocessor support (1 CPUs).
>>
>>$Id: score.c,v 1.44 2000/03/21 15:18:58 thorsten Exp $
>>$Id: search.c,v 1.57 2000/03/22 10:19:02 thorsten Exp $
>>
>>Hashtable sizes: 16384 k, 2048 k, 2048 k
>>Found 4-men endgame table bases.
>>
>>White(1): White(1): TC: 60 moves in 300 secs
>>TL: 4/16
>>GamePhase: Middlegame
>
>middlegame?
Strange isn't it? But with Amy, that gets mislabeled that way from feeding it a
position. I've fed Amy positions that were far into the midgame, but Amy called
it an opening. But at that point, Amy hasn't analyzed anything yet, so I don't
think it's a problem, Amy tried to look at the tablebase several times, so after
Amy looked at it, she knew what was happening:
Nodes = 4479284, QPerc: 49 %, time = 277.4 secs, 16.1 kN/s
Extensions: Check: 903034 DblChk: 156 DiscChk: 1290 SingReply: 68718
Recapture: 11401 Passed Pawn: 137368 Zugzwang: 91
Hashing: Trans: 562952/2248712 = 25 % Pawn: 1217916/1228336 = 99 %
Eval: 986797/2215133 = 44 %
EGTB Hits/Probes = 83/105
Hashtable 1: entries = 1048576, use = 420119
White(1):
I'll be back.
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