Computer Chess Club Archives




Subject: Re: If you want solve one mate...

Author: Heiner Marxen

Date: 09:43:34 01/21/01

Go up one level in this thread

On January 21, 2001 at 11:56:09, leonid wrote:

>This mate position is very handy when you want to check the limits in your
>program. It is amusing also. Number of legal moves for both sides is slightly
>over one hundred.
> knq3q1/rq1q1qbQ/Qq2Q3/1Qn1Q2B/Q1qN1Q1r/4K1B1/1q4QR/1N1q3Q white to go.

A hint to you, Leonid:  if you like to see a diagram for the notation above:
(1) Stick a [D] directly before the FEN string,
(2) append (blank seperated) colour to move, i.e. b or w
(3) append (blank seperated) castling rights: - for nothing, KQkq or part
    of it for white/black king side/queen side
(4) append (blank seperated) e.p. info: - for "no e.p. possible"
You can look up the details in the FEN standard, part of the PGN standard.
Look at the line below, which I typed in, and see the diagram, provided not
by me, but by the CCC web server, which recognizes the [D] and FEN after it,
and inserts the graphics.  You can do that also.

[D]knq3q1/rq1q1qbQ/Qq2Q3/1Qn1Q2B/Q1qN1Q1r/4K1B1/1q4QR/1N1q3Q w - -

Chest says "no mate in 9" (216 seconds, K7/600 335MB hash).
I will ask for more depth...


>If you will solve, it will be nice if you will indicate your result.

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