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Subject: Re: about WCCC test suite

Author: Uri Blass

Date: 14:48:18 07/14/04

Go up one level in this thread


On July 14, 2004 at 17:23:34, Uri Blass wrote:

>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

depth=14 +0.00 d4e6 e5g6 h3h8 g6h8 d1d7 h8g6 f4f7 g8h8 f7g6 a5e5 g6h5 h8g8 h5f7
g8h8 f7h5
Nodes: 1458770656 NPS: 571784
Time: 00:42:31.26
depth=14 +0.00 d4e6 e5g6 h3h8 g6h8 d1d7 h8g6 f4f7 g8h8 f7g6 a5e5 g6h5 h8g8 h5f7
g8h8 f7h5
Nodes: 1583129390 NPS: 574180
Time: 00:45:57.20



>
>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.

Here is analysis by movei on fast hardware(it is certainly not too hard):

depth=11 +1.81 g8h8 f4f7 e4f2 f7b7 a5e5 b7f3 e5a1 c1d2 a1d1 f3d1 f2d1 d2d1 a8e8
e6d4
Nodes: 5915241 NPS: 572073
Time: 00:00:10.34
depth=12 +0.00 g8h8 f4f7 e4g5 d1h1 g5h7 f7g6 h8g8 g6h7 g8f7 e6c5 f8c5 h7f5 f7e8
h1h8 e8e7 f5e5 e7f7 e5f5 f7e7
Nodes: 25786937 NPS: 555752
Time: 00:00:46.40
depth=12 +0.00 g8h8 f4f7 e4g5 d1h1 g5h7 f7g6 h8g8 g6h7 g8f7 e6c5 f8c5 h7f5 f7e8
h1h8 e8e7 f5e5 e7f7 e5f5 f7e7
Nodes: 33951467 NPS: 561552
Time: 00:01:00.46
depth=13 -0.51 g8h8 f4f7 e4g5 d1h1 g5h7 f7g6 h8g8 g6h7 g8f7 a4c5 f3f2 c5b7 a5a3
c1b1 f7e6 h7h3 e6e7 h3h4 e7d7 h4f2
Nodes: 60694069 NPS: 561254
Time: 00:01:48.14
depth=13 -0.50 g6h8
Nodes: 69049207 NPS: 564127
Time: 00:02:02.40
depth=13 -0.21 g6h8
Nodes: 86515702 NPS: 569332
Time: 00:02:31.96
depth=13 +0.00 g6h8 d1d7 h8g6 f4f7 g8h8 f7g6 a5e5 g6h5 h8g8 h5f7 g8h8 f7h5
Nodes: 94418795 NPS: 568925
Time: 00:02:45.96


>>
>>>r4bk1/1b1R2p1/p3NBn1/q7/Np1Q4/1P3p2/P1P5/2K5 b - - bm Qf5; " too easy ";

No way

More than a minute for movei on fast hardware

depth=10 -0.69 f3f2 d4f2 b7c6 f6d8 a5e5 f2f7 g8h7 e6f8 g6f8 d7d3 e5e1 d3d1 e1d1
c1d1 a8d8 d1e2 f8g6
Nodes: 17713621 NPS: 575865
Time: 00:00:30.76
depth=11 -1.11 f3f2 d4f2 b7c8 f6d8 a5e5 f2f7 g8h8 e6f8 g6f4 c2c4 e5a1 c1d2 c8d7
f7d7 a1a2 d2e3
Nodes: 20510313 NPS: 577267
Time: 00:00:35.53
depth=11 -0.81 a5f5
Nodes: 47442608 NPS: 585711
Time: 00:01:21.00
>>
>>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 ";

Here is analysis by movei

depth=11 +0.37 c4c3 e4e6 c8g8 e2d3 a7f7 b5c5 g7f6 e6f6 f7f6 c5c3 f6d6 b4b5
Nodes: 11282585 NPS: 532951
Time: 00:00:21.17
depth=11 +0.37 c4c3 e4e6 c8g8 e2d3 a7f7 b5c5 g7f6 e6f6 f7f6 c5c3 f6d6 b4b5
Nodes: 21775675 NPS: 543440
Time: 00:00:40.07
depth=12 +0.19 c4c3 e4e6 c8d8 e6e3 g7f6 e3a7 c3c2 a7e3 f6d6 h2h1 d6g3 e3g1 d8d1
e2d1 c2c1q g1d4 h8h7
Nodes: 41709197 NPS: 537351
Time: 00:01:17.62
depth=12 +0.20 c8d8
Nodes: 63889049 NPS: 543320
Time: 00:01:57.59
depth=12 +0.20 c8d8 e4e6 g7d4 b5d5 d4f4 h2g1 h8g7 d6d7 a7a1 e2d1 f4f6 e6g4 c4c3
d5g5 g7f7
Nodes: 71584982 NPS: 544662
Time: 00:02:11.43

depth=12 +0.40 g7f6 e2c4 c8d8 e4e3 f6f4 e3f4 g5f4 b5h5 a7h7 h5e5 d8d6 e5e6 d6e6
c4e6 h8g7
Nodes: 106999503 NPS: 549081
Time: 00:03:14.87
depth=12 +0.40 g7f6 e2c4 c8d8 e4e3 f6f4 e3f4 g5f4 b5h5 a7h7 h5e5 d8d6 e5e6 d6e6
c4e6 h8g7
Nodes: 109214568 NPS: 549313
Time: 00:03:18.82

Uri



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