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Subject: Re: Here's a position I call "Somebody's in trouble" -- Your prog says what?

Author: Dann Corbit

Date: 16:12:31 02/06/02

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On February 06, 2002 at 18:55:24, John Merlino wrote:

>On February 06, 2002 at 18:12:11, Dann Corbit wrote:
>
>>[D]4k3/Q3p1Q1/1Q5B/Q1QN1NQ1/4QQ2/B2Q4/8/2R1KR2 w - - acd 4; acn 29; acs 0; bm
>>Nc7# Nd6# Nf6# Q5g6# Q7g6# Qaa4# Qab5# Qaxe7# Qbb5# Qbb8# Qbc6# Qbg6# Qc8# Qcb5#
>>Qcc6# Qcxe7# Qd8# Qdb5# Qea4# Qexe7# Qf8# Qfb8# Qg5xe7# Qg7xe7# Qg8# Qh5#; ce
>>32766; dm 1; pv Nd6#;
>>
>>I have found that some programs crash, and others think for minutes on this mate
>>in 1.
>
>Chessmaster solves it rather nicely (note the number of positions seen):
>
>Time	Depth	Score	Positions	Moves
>0:00	1/1	Mate01	1		1.Qg7xe7#

Of course, ChessMaster does not really know how to handle EPD (you have to tell
it the color among other things.)

ChessMaster does not keep the list of answers to check against, which is another
frequent cause of crashing in the other programs.  (People will have a static
array of up to 10 answers or some such thing where they imagine it could never
be more than that).

Which reminds me, it would be nice to add real EPD support to ChessMaster 9000
for both input and output.

Just a thought.

I do have to give ChessMaster its "props" though -- it really knows how to solve
a mate well for a chess playing program.




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