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Subject: Re: Hash table/mate in X program; Novag Diamond II.

Author: Will Singleton

Date: 14:15:37 12/03/98

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On December 03, 1998 at 16:44:50, Dan Istrate wrote:

>In the manual for Diamond II ("Mate in X moves" chapter),
>they show two positions (mate in 4/mate in 6). Novag
>claims that Diamond II solves those problems in less
>than one minute (~45 sec.). I've tried to solve them
>with a Legend III computer (Excalibur).
>-For mate in 4 position, after 14-16 hours, Legend III
>comes up with a solution of 6 moves (though it's set
>for "mate in 4" level).
>-For mate in 6 position, after 18 hours, it cannot find
>a solution. However, after one set of moves and another
>18 hours, it finds a solution of 5 moves.
>
>Is the Diamond's hash table the cause for this big
>difference between their performance ? Could the
>Legend III be defective ? (18 hours versus 45
>seconds ?!!). Any ideas?
>
>Dan


Would you mind posting the positions?  I'd like to test them out myself.

Will



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