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Subject: Re: about WCCC test suite

Author: Uri Blass

Date: 14:23:34 07/14/04

Go up one level in this thread


On July 14, 2004 at 17:15:39, Uri Blass wrote:

>On July 14, 2004 at 16:35:30, Will Singleton wrote:
>
>>On July 14, 2004 at 05:11:07, Uri Blass wrote:
>>
>>>I posted yesterday some test positions and it seems that people missed them
>>>
>>>see http://www.talkchess.com/forums/1/message.html?376470
>>>
>>>Uri
>>
>>It looks to me like all positions have problems with one exception.  So the test
>>doesn't look that useful.  Or maybe I'm wrong (see comments).
>>
>>r4bk1/1b4p1/p3p3/q3n1B1/Np1NnQ2/1P3p1R/P1P5/2KR4 w - - bm Nxe6; " too hard ";
>
>Falcon found it during the game so it is not too hard
>
>Movei needs to improve to find it faster and cannot find it in a reasonable
>time:
>
>Analysis by movei on A3000(that A3000 crashed in bar-ilan again and again but
>work for more than 48 hours without a single crash here)
>
>Analysis so far by movei:
>
>depth=12 -0.83 f4h2 e5f7 g5e3 f8d6 h2g1 a5e5 c1b1 e4g5 h3h5 d6e7 c2c4 a8f8
>Nodes: 180228316 NPS: 576767
>Time: 00:05:12.48
>
>depth=13 -0.70 f4h2 e5f7 g5f4 e4c3 f4c7 a5g5 c7f4 g5e7 a4c3 b4c3 c1b1 e6e5 d4f5
>e7a3
>Nodes: 244101559 NPS: 570997
>Time: 00:07:07.50
>depth=13 -0.70 f4h2 e5f7 g5f4 e4c3 f4c7 a5g5 c7f4 g5e7 a4c3 b4c3 c1b1 e6e5 d4f5
>e7a3
>Nodes: 324662522 NPS: 578545
>Time: 00:09:21.17
>depth=14 -0.97 f4h2 e5f7 g5f4 e4c3 d1h1 f3f2 h3f3 b7e4 h2f2 c3a4 b3a4 f8c5 f2e2
>e4f3 e2f3
>Nodes: 422498103 NPS: 575101
>Time: 00:12:14.65

Movei finally failed high again and again

depth=14 -0.96 d4e6
Nodes: 915927496 NPS: 575125
Time: 00:26:32.57
depth=14 -0.67 d4e6
Nodes: 1008095842 NPS: 574426
Time: 00:29:14.96

If weak movei can fail high on it on a fast hardware in less than 30 minutes
then I do not consider the position as too easy


>
>
>>r4bkR/1b4p1/p3N1n1/q5B1/Np2nQ2/1P3p2/P1P5/2KR4 b - - bm Nxh8; " too hard ";
>
>Shredder found it during the game and I checked that movei could find it in few
>minutes so it is not too hard.
>
>>r4bk1/1b1R2p1/p3NBn1/q7/Np1Q4/1P3p2/P1P5/2K5 b - - bm Qf5; " too easy ";
>
>I checked that it is not too easy for movei and first it prefered a different
>move.
>
>I consider too easy only positions that movei can solve in less than 2 seconds
>on fast hardware and it was not one of them.
>
>>2r3k1/p4rpp/4bp2/4p3/QR2P3/P2qB1P1/5P1P/5RK1 b - - bm a5; " after a5 Rb6, what
>>then? ";
>
>Bd7 and black wins a pawn.
>
>>2r3k1/1Q1b1rpp/5p2/4p3/8/P3BqP1/5P1P/1R3RK1 b - - bm e4; " too easy ";
>
>Again latest movei needs 5 seconds to fail high on fast hardware.
>I hope to do it too easy for movei in the future.
>
>>2r4k/r5q1/3Pp3/1R4p1/1Pp1Q2p/7P/4B1PK/8 b - - am c3; " too easy ";
>
>Cannot be too easy because movei did that mistake in WCCC
>Another ply was enough to avoid it.

I can add that based on looking at Dann Corbit post Crafty could not solve it
and liked c3 after 2 minutes.

Uri



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