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Subject: Re: Mate in 10

Author: leonid

Date: 14:25:27 12/03/02

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On December 02, 2002 at 12:24:45, Richard Pijl wrote:

>On December 02, 2002 at 12:07:23, Art Basham wrote:
>
>>This is a good test for portables!
>>
>>White plays Rxh6+...and mates in 10...!
>>
>>[D]3r3k/p4Qp1/7p/1b1Bp3/4Pp2/7R/4nqPP/4R2K w - -
>>
>>Saitek Travel Champion takes just 5 ply and finds it in 17 sec.
>>
>>Novag Amber takes about 25 sec.
>>
>>Fidelity Par Excellence (5 Mhz) takes 6 ply ....3 min. and 21 sec.
>>
>>Fidelity Mach 3 (16 Mhz) finds it in 27.5 sec.
>
>The Baron on a portable :-) computer (Pentium II-500) takes 3 seconds (7 ply) to
>find Rxh6 and 9 seconds (10 ply) to report the mate

I just wanted to find how long it will take to solve this position on Pentium
kind of computers when I came to Your response. Still, if somebody will come
with Chessmaster's time it will be curious for me to see.

LLchess mate solver find mate in 10 moves deep, by selective search, in zero
seconds. Zero - less then 0.055 sec. Computer is Celeron 600Mhz. No hash.

By brute force this position can take pretty long time for my program, since
branching factor did dramatic jump between 7 and 8 move. Time of response for  8
moves was 1 min 48 sec. I stopped right there.

Leonid.

>Richard.



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