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Subject: Re: Chessmaster Perhaps no longer the Fastest Mate Finder?

Author: leonid

Date: 06:38:33 01/07/02

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On January 07, 2002 at 05:15:38, Dann Corbit wrote:

>On January 07, 2002 at 05:05:31, Jouni Uski wrote:
>
>>On January 07, 2002 at 04:59:54, Dann Corbit wrote:
>>
>>>On January 07, 2002 at 04:47:50, Will Bundy wrote:
>>>>Hi
>>>>
>>>> In this position Fritz7a announces mate in 8 in 1 sec!!! I expected chessmaster
>>>>to find it in the same amount of time, didn't happen.
>>>>
>>>>
>>>> 2R2R2/5p2/p3p2p/4P1pk/7N/P5PP/5P1K/1q6 w - g6 id Fritz 7 - ; bm g3g4;
>>>
>>>I don't think you can reasonably draw any sensible conclusions from a single
>>>position.  Try it on a couple hundred.  If it's faster with a large set of
>>>positions, then your conclusion is likely to follow.  If not, then not.
>>
>>Yes it's very difficult to say anything sure! I have tactical test set with 200
>>positions and still I cannot say sure, which program is the best in solving:
>>Fritz, Tiger or Goliath. And "toy" programs like Chessmaster I haven't even
>>tested.
>
>The output of Chest319 for this problem:
>
>[D]2R2R2/5p2/p3p2p/4P1pk/7N/P5PP/5P1K/1q6 w - g6 acn 18544563; acs 116; bm Rxf7
>g4+; ce 32752; dm 8; pv g4+ Kxh4 Rh8 Qg6 Rcg8 Qh5 Rh7 f5 exf6ep e5 Rgh8 e4 Rxh6
>e3 Rxh5#;


One second for this position is for sure nice time. Mine (LLchess mate solver)
was not able find mate by its selective. By brute force it find mate in 8 moves
in 3 min and 22 sec. Celeron 600Mhz. No hash.

Leonid.



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