Author: Robert Hyatt
Date: 07:55:37 05/15/05
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On May 15, 2005 at 07:09:07, Kevin K wrote: >Crafty does capture/re-capture, one reply extension only at non-root nodes. >What is the reason not doing capture/re-capture, one reply extension at root? > >Thanks. One reply at the root would make no sense. You extend the only move by one ply. Why not do the same thing by just searching another ply deeper on the next iteration? Re-capture falls into the same class. I extend them to prevent wasting two plies of search on a capture/re-capture sequence. I've now played the capture (my opponent did that is) and now I am committed. What is the point for extending this move since I have to make it to restore material balance? Out of check would also extend every move at the root. I'll just do another iteration instead.
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