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

Author: John Merlino

Date: 10:46:51 02/07/02

Go up one level in this thread


On February 06, 2002 at 19:12:31, Dann Corbit wrote:

>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.

Chessmaster 8000 handles FEN positions just fine, assuming they are in a text
file that you can "load". Which is, of course, a particularly clumsy way to do
it, I'll admit. The next version is going to have copy/paste functionality for
PGN and FEN.

Full EPD support, though, such as handling all of the possibilities above, is
not planned.

jm



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