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Subject: Need advice on pinned pieces

Author: Ron Murawski

Date: 15:47:21 07/28/01

I have implemented a pin bitboard for king-pinned
pieces and it has helped the strength of my program.
My question is: Is it worthwhile to identify ALL
pinned pieces?

Whereas the king-pinned pieces were quite easy to
determine and very important to the scoring, any
queen-pinned, etc. pieces will take much longer to
calculate and have less effect. In fact, some of the
pins seem to be phantoms as they might disappear
because of possible checking moves, tactical threats,
etc.

Is it better to discover these pinned pieces in the
search, or is it better to do all the additional
processing in the evaluator? Has anyone tried
implementing the detection of all pinned pieces and
was the time spent looking for these pieces worth the
effort?

Thanks in advance,
Ron Murawski

• Re: Need advice on pinned pieces Heiner Marxen 05:59:06 07/29/01
• Re: Need advice on pinned pieces Tony Werten 02:44:27 07/29/01
  • Re: Need advice on pinned pieces Uri Blass 04:29:05 07/29/01
    • Re: Need advice on pinned pieces Tony Werten 04:58:38 07/29/01
      • Re: Need advice on pinned pieces Ron Murawski 11:14:05 07/29/01
• Re: Need advice on pinned pieces Bruce Moreland 19:22:23 07/28/01
  • Re: Need advice on pinned pieces Ron Murawski 20:58:27 07/28/01

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