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Subject: Re: A test position from Rebel-Van der Wiel

Author: Uri Blass

Date: 07:44:45 01/06/01

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On January 06, 2001 at 10:21:54, Uri Blass wrote:

>On January 06, 2001 at 02:57:18, Ed Schröder wrote:
>
>>On January 06, 2001 at 01:51:23, Uri Blass wrote:
>>
>>>[D]rn6/2Qn1qk1/2p2pp1/1p1pp3/1P1P2N1/7P/N1P2PP1/R5K1 w - - 0 1
>>>
>>>If you believe the analysis in the Rebel site Rebel blundered by Qb7 when Qd6
>>>was better.
>>>
>>>I am interested to know what is the opinion of program after long search.
>>>
>>>Uri
>>
>>I ran Century 2.01 running under Rebel-Tiger II. It does change to Qd6
>>in about 12 minutes. I will try Century 3.0 later.
>>
>>Ed
>>
>>-------------------------------------
>>
>>Loading...
>>
>>Engine version   : Rebel Century 2.01
>>Hash table size  :  40 Mb
>>
>>rn6/2Qn1qk1/2p2pp1/1p1pp3/1P1P2N1/7P/N1P2PP1/R5K1 w - -
>>
>>00:01  04.00  0.21  1.dxe5 Nxe5 2.Qd8 Nxg4 3.hxg4
>>00:01  05.00  0.84  1.Qb7 Ra3 2.dxe5 fxe5 3.Nxe5 Nxe5 4.Qxb8
>>00:01  06.00  0.77  1.Qb7 Ra3 2.dxe5 fxe5 3.Qc8 Kh7 4.Nxe5 Nxe5
>>00:02  07.00  0.83  1.Qb7 Ra3 2.dxe5 fxe5 3.Nxe5 Nxe5 4.Qxb8 Nc4 5.Qd8
>>00:03  08.00  0.75  1.Qb7 Ra3 2.dxe5 fxe5 3.Nxe5 Nxe5 4.Qxb8 Nc4 5.Qc8 Qf5
>>00:04  09.00  0.65  1.Qb7 Ra3 2.dxe5 fxe5 3.Nxe5 Nxe5 4.Qxb8 Nc4 5.Qd8 Kh7 6.c3
>>00:06  10.00  0.21  1.Qb7 Ra3 2.c3 exd4 3.cxd4 f5 4.Ne5 Nxe5 5.Qxb8 Nd3 6.Qd8
>>00:12  10.02  0.23  1.c3 exd4 2.cxd4 f5 3.Ne5 Nxe5 4.Qxe5+ Qf6 5.Qc7+ Kh6 6.Qf4+
>>Kh7 7.f3 Nd7
>>00:19  11.00  0.22  1.c3 exd4 2.cxd4 f5 3.Ne5 Nxe5 4.Qxe5+ Kg8 5.Qd6 Qg7 6.g3
>>Kh7 7.Qe5
>>00:20  11.01  0.29  1.Qb7 Ra3 2.dxe5 f5 3.Nf6 Nxe5 4.Ne8+ Kf8 5.Qxb8 Qxe8 6.Qc7
>>00:31  12.00  0.40  1.Qb7 Ra3 2.dxe5 f5 3.Nf6 Nxe5 4.Ne8+ Kf8 5.Nc7 Ned7 6.Qc8+
>>Kg7 7.Qd8
>>00:53  13.00  0.25  1.Qb7 Ra3 2.dxe5 f5 3.Nf6 Nxe5 4.Ne8+ Kf8 5.Nc7 Ned7 6.Qc8+
>>Kg7 7.Qd8 Kh7
>>02:01  14.00  0.30  1.Qb7 Ra3 2.dxe5 fxe5 3.Nxe5 Qf6 4.Re1 Rxa2 5.Nxd7 Nxd7
>>6.Qxd7+ Kh6
>>05:41  15.00  0.09  1.Qb7 Ra3 2.dxe5 fxe5 3.Nxe5 Nxe5 4.Qxb8 Qf6 5.c3
>>11:46  15.04  0.11  1.Qd6 Qf8 2.dxe5 Qxd6 3.exd6 Nb6 4.Re1 Rxa2 5.Re7+ Kf8
>>6.Nxf6
>>21:57  16.00  0.04  1.Qd6 Qf8 2.dxe5 fxe5 3.Qc7 Qf5 4.Qd8 Qe6
>
>Century3 cannot avoid Qb7 at depth 15(100Mbytes hash pIII450).
>
>It can see the score 0.09 for Qb7 but cannot find a better move.
>
>The score of Century3 dropped at depth 16 and is -0.10 after 1:18:56 so I guess
>that is going to find a better move.
>
>It considers 1.c3 in the last 20 minutes and I guess that it can find this move
>at depth 16 unless I stop the analysis
>(1.c3 was considered to be the best move after a long search of Junior5.9)
>
>Uri

Century3 needed 1:54:58 to find c3 at depth 16 with score 0.00

Uri



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