Author: Russell Reagan
Date: 07:02:37 02/23/04
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On February 23, 2004 at 07:02:59, martin fierz wrote: >aloha, > >i have a question about pins. pins are a rather important feature in chess; some >of them are not so bad, some are deadly. i just happened to chat briefly with >anthony cozzie on ICC, and he said he didn't do any pin detection. i detect >pins, but i don't evaluate whether a pin is not so bad or deadly. my questions >are: >-> are you detecting pins in your program? >-> if yes, do you try to distinguish between different pins? > >cheers > martin I don't know if this is a good idea or not, but something I have thought of in the past is that a move that pseudo-attacks the king is probably worth considering. The move might be a pin, but it can also be a skewer. Even if it is not a direct tactic (say, there are two or three pieces in front of the king), it might setup a tactic eventually. The nice thing about this is that with an 0x88-like board where you have unique square relationships, this can be done by a single table lookup.
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