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Subject: Re: Positions from Tao vs Ruffian matches

Author: José Carlos

Date: 13:00:29 05/08/04

Go up one level in this thread


On May 08, 2004 at 15:27:01, Uri Blass wrote:

>On May 08, 2004 at 15:19:37, José Carlos wrote:
>
>>On May 08, 2004 at 08:54:55, Bryan Hofmann wrote:
>>
>>>[D]8/5k1p/3p2r1/PP3p2/3Rn3/B1r4P/1R5K/8 w - - 1 49
>>>
>>>In move 49 Tao finds Rxe4 at PLY 9 in only 10 seconds. Most other engines take
>>>much longer and would have lost this game. I would like to see what the
>>>commercial engines do in this position. (game PGN is below round 13)
>>
>>  Anubis gets it quickly but Averno needs a lot of time.
>>  Hardware: Athlon MP 2400 (using only one processor per engine):
>>
>>Anubis v0.00.0056 beta3  WB2 140 MB:
>>------------------------------------
>> 4   00:00  0.31   a3b4 e4g5 h3h4 g5f3 h2h3
>> 4   00:00  0.31   a3b4 c3h3 h2h3 e4g5 h3g3 g5e6 g3h2 e6d4
>> 5   00:00  0.23   a3b4 e4g5 b2f2 c3h3 h2g2 g5e4 g2h3 e4f2 h3h4
>> 5   00:00  0.66   d4e4 g6h6 e4f4 h6h3 h2g2 h3g3 g2f2 c3a3 f4f5
>> 6   00:00  0.42   d4e4 f5e4 a3b4 c3f3 b5b6 e4e3
>> 7   00:00  0.48   d4e4 f5e4 a3b4 c3f3 b5b6 g6h6 a5a6 h6h3 h2g2 h3g3 g2h2
>> 8   00:01  0.23   d4e4 f5e4 a3b4 c3f3 b5b6 g6h6 a5a6 h6h3 h2g2 h3g3 g2h2
>> 8   00:01  0.00   d4e4 f5e4 a3b4 c3f3 b5b6 g6h6 h2g2 h6g6 g2h2 f7e8 a5a6
>> 9   00:02  0.06   d4e4 f5e4 a3b4 c3d3 b5b6 g6h6 b2f2 f7e8 h2g2 h6g6 g2h2
>>10   00:05  0.00   d4e4 f5e4 a3b4 c3d3 b5b6 g6h6 h2g2 h6g6 g2h2 d3b3 b4d2
>>11   00:12  0.16   d4e4 f5e4 a3b4 c3d3 b5b6 g6h6 b6b7 d3h3 h2g1 h3h1 g1f2
>>                   e4e3 f2e2 h6h2 e2e3 h1e1 b4e1 h2b2
>>12   00:33  0.41   d4e4 f5e4 a3b4 c3d3 b5b6 g6h6 b6b7 d3h3 h2g1 h3h1 g1f2
>>                   e4e3 f2e2 h6h2 e2e3 h1e1 b4e1 h2b2 a5a6
>>12   00:50  0.63   d4e4 f5e4 a3b4 c3f3 b5b6 g6h6 b4d6 h6d6 b6b7 d6d8 b7b8Q
>>                   d8b8 b2b8 e4e3 b8b7 f7g6
>>13   02:03  0.63   d4e4 f5e4 a3b4 c3f3 b5b6 g6h6 b6b7 f3h3 h2g1 h3h1 g1f2
>>                   e4e3 f2e3 h1h3 e3e4 h6h4 e4d5 h3d3 d5c6 h4c4 c6b6
>>14   05:00  0.88   d4e4 f5e4 a3b4 c3f3 b5b6 g6h6 b6b7 f3h3 h2g1 h3h1 g1f2
>>                   e4e3 f2e3 h1h3 e3e4 h6h4 e4d5 h3d3 d5c6 h4c4 c6b6
>>14   08:08  0.90   d4e4 f5e4 a3b4 c3c8 b5b6 d6d5 b6b7 c8b8 b4d2 g6f6 d2c3
>>                   f6e6 b2g2 e6g6 g2f2 f7e8 h3h4
>>
>>Averno v0.75  WB2 79 MB:
>>------------------------
>> 4   00:00  0.72   a3b4 c3h3 h2h3 e4g5 h3g3 g5e6 d4g4
>> 5   00:01  0.72   a3b4 c3h3 h2h3 e4g5 h3g3 g5e6 d4g4 g6g4 g3f3
>> 6   00:01  0.87   a3b4 c3h3 h2h3 e4g5 h3g3 g5e6 g3h2 e6d4 b5b6
>> 7   00:01  0.63   a3b4 c3h3 h2h3 e4g5 h3g3 g5e6 d4g4 g6g4 g3f2 g4f4 f2e3
>>                   d6d5
>> 8   00:01  0.63   a3b4 e4g5 d4d1 c3h3 h2g2 h3h6 b5b6 g5e4 g2f3 h6h4
>> 9   00:01  0.28   a3b4 e4g5 d4d1 c3h3 h2g2 h3h6 b5b6 g5e4
>> 9   00:01  0.19   a3b4 e4g5 d4d1 c3h3 h2g2 h3h6 b2b1 g5e4 g2f3 h6h2 b5b6
>>10   00:04  0.00   a3b4 e4g5 b2f2 g5f3 f2f3 c3f3 b4d6 f3f2 h2h1 f2f1 h1h2
>>                   f1f2
>>11   00:11  0.00   a3b4 e4g5 b2f2 g5f3 f2f3 c3f3 b4d6 f3f2 h2h1 f2f1 h1h2
>>                   f1f2
>>12   00:22  0.00   a3b4 e4g5 b2f2 g5f3 f2f3 c3f3 b4d6 f3f2 h2h1 f2f1 h1h2
>>                   f1f2
>>13   00:52  0.00   a3b4 e4g5 b2f2 g5f3 f2f3 c3f3 b4d6 f3f2 h2h1 f2f1 h1h2
>>                   f1f2
>>14   03:32 -0.35   a3b4 e4g5 b2f2 g5f3 f2f3 c3f3 b4d6 f3f2 h2h1 f2f1 h1h2
>>                   f1f2
>>14   04:47 -0.17   a3b4 e4g5 b2f2 g5f3 f2f3 c3f3 b4d6 g6e6 h2g1 e6e1 g1g2
>>                   f3b3 d6g3 e1a1 d4d7 f7e8 d7h7
>>14   11:45 -0.10   d4e4 f5e4 a3b4 c3c8 b5b6 c8b8 b2d2 e4e3 d2d6 g6d6 b4d6
>>                   e3e2 d6g3 b8e8 g3e1 h7h6
>>
>>
>>
>>>[D]r1q3k1/pp1R1pb1/2n1r2p/3Q2p1/2P5/1P4B1/P4PPP/2KN3R b - - 6 22
>>>
>>>Here in move 22 Tao finds a5 at PLY 5 in only 2 seconds. Most engines select b5
>>>in this position but when the a5 move is played against them the see far greater
>>>trouble in the score. (game PGN is below round 2)
>>
>>  This one is hard for my programs. After 10 minutes, none of them find a5.
>>
>>  José C.
>
>
>Or maybe the position is not correct.
>
>Movei cannot find a5 even after an hour of search but is happy with Qe8 when it
>can see positive score at depth 14 after a long search.
>
>10 -67 5528 11151968 c8e8
>10 -62 7348 14768166 c8e8 h2h4 c6b4 d5b7 b4a2 c1b1 a2c3 d1c3 e6b6 b7d5 b6b3 b1a
>2 b3c3 h4g5
>10 -62 7373 14821215 c8e8 h2h4 c6b4 d5b7 b4a2 c1b1 a2c3 d1c3 e6b6 b7d5 b6b3 b1a
>2 b3c3 h4g5
>11 -50 12454 25112240 c8e8 d1e3 c6b4 d5b7 b4a2 c1b1 a2c3 b1c2 e6b6 b7f3 e8d7 f3
>a8 g8h7 h1a1 b6b7
>11 -50 13577 27570808 c8e8 d1e3 c6b4 d5b7 b4a2 c1b1 a2c3 b1c2 e6b6 b7f3 e8d7 f3
>a8 g8h7 h1a1 b6b7
>12 -50 19837 40355460 c8e8 d1e3 c6b4 d5b7 b4a2 c1b1 e6b6 b7f3 a2c3 b1c2 e8d7 f3
>a8 g8h7 h1a1 b6b7
>12 -50 24105 49726467 c8e8 d1e3 c6b4 d5b7 b4a2 c1b1 e6b6 b7f3 a2c3 b1c2 e8d7 f3
>a8 g8h7 h1a1 b6b7
>13 0 93663 183138475 c8e8 d1e3 c6b4 d5b7 b4a2 c1b1 e6b6 b7f3 e8d7 f3a8 g8h7 a8e
>4 h7g8 b1c2 a2b4 c2c1 b4a2 c1c2
>13 0 97341 191549367 c8e8 d1e3 c6b4 d5b7 b4a2 c1b1 e6b6 b7f3 e8d7 f3a8 g8h7 a8e
>4 h7g8 b1c2 a2b4 c2c1 b4a2 c1c2
>14 9 355881 643899430 c8e8 h2h4 e6e2 h4g5 c6b4 d5f5 e2c2 c1b1 c2a2 b1c1 a2a1 c1
>d2 a8d8 d7d6 e8e7 c4c5 h6g5 d6d8 e7d8 g3d6
>14 9 427281 776237694 c8e8 h2h4 e6e2 h4g5 c6b4 d5f5 e2c2 c1b1 c2a2 b1c1 a2a1 c
>d2 a8d8 d7d6 e8e7 c4c5 h6g5 d6d8 e7d8 g3d6
>
>Uri

  Qe8 was also the move chosen by Anubis and Averno, but I didn't post the
search as I thought it wasn't interesting.
  However, after playing a5, both program started to go down in eval after each
iteration until they went negative and I stopped it.

  José C.



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