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Subject: Re: One mate to solve.

Author: leonid

Date: 17:08:23 08/17/02

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On August 17, 2002 at 14:51:29, John Merlino wrote:

>On August 17, 2002 at 07:24:55, leonid wrote:
>
>>Hi,
>>
>>This position is very easy for black side and moderate for white.
>>
>>[D]B2q1q1B/b6b/QNrqkrNQ/1P1pp1P1/1nq2qn1/1n1RR1n1/4Q3/Q1Q1KQ1Q w - -
>>
>>Please indicate Your result.
>>
>>Thanks,
>>Leonid.
>
>Chessmaster 9000, on a PIII-733, announces Mate in 11 after 1:07, then switches
>to Mate in 10 after 1:42....


Chessmaster result is close or better that mine. LLchess on Celeron 600Mhz and
no hash solved in 10 moves, in 3 min and 3 sec. Mate found by selective search.

It is interesting that Chessmaster find mate in 11, before 10. This is somehow
resembles to what my program do when it search with default setting. There two
different searches take place, and even inside of each search exist inner lower
level search. It look like that mine code (even if it was done completely in
void without reading any theory) still resemble in many instances with other
programs. Similar result do demand every often similar working procedure to
obtain it.

Cheers,
Leonid.


>Time	Depth	Score	Positions	Moves
>0:02	1/3	26.30	127222		1.Qxg4+ Nf5 2.Qxf5+ Qxf5 3.Qxf5+
>					Rxf5 4.Nxf8+ Ke7 5.Qxa7+ Q8c7 6.Nxc4
>					Nxc1 7.Nxd6 Rxd6
>0:06	1/4	27.87	351617		1.Qxg4+ Nf5 2.Qxf5+ Qxf5 3.Qxf5+
>					Rxf5 4.Nxf8+ Ke7 5.Qxh7+ Kxf8 6.Qxf5+
>					Q6f6 7.Qxf6+ Rxf6 8.Nxc4 Rxa6 9.bxa6
>1:09	1/5	Mate11	4412968		1.Qxg4+ Nf5 2.Qxf5+ Qxf5 3.Qxf5+
>					Rxf5 4.Nxe5+ Qff6 5.Nxc6+ Qe4 6.Nxd8+
>					Qxd8 7.Rxe4+ dxe4 8.Qxe4+ Re5 9.Qaxe5+
>					Kf7 10.Qexh7+ Qg7 11.Q6xg7#
>1:42	1/6	Mate10	6394477		1.Qxg4+ Nf5 2.Qxf5+ Qxf5 3.Qxf5+
>					Rxf5 4.Nxe5+ Qff6 5.Nxc6+ Qe4 6.Nxd8+
>					Qxd8 7.Nxd5+ Nxa6 8.Qc6+ Kf7 9.Qg7+
>					Qxg7 10.Qxg7#
>
>jm



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