Author: Mike Siler
Date: 07:22:15 01/26/04
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On January 26, 2004 at 08:28:44, Michael Yee wrote: >On January 26, 2004 at 05:55:58, Steve Maughan wrote: > >>I'm currently using Peter McKenzie's excellent PERFT resource to debug the new >>Monarch move generation routines. Needless to say my number's do not aggree >>with Peter's - I clearly have a couple of bugs. What I'd like to do is use a >>program like YACE or Delfi which have Perft routines to narrow the search for >>the bugs i.e. look at the subtrees of the positions on Peter's page and narrow >>the bugs down. >> >>So the question is what's the easiest way of setting up a position and running >>Perft? Do any of the GUIs support ad-hoc commands? >> >>Thanks, >> >>Steve > >Hi Steve, > >Sharper (by Albert Bertilsson) includes a "divide x" command that's like perft >but gives the subtree counts for each legal move in the root position. > >Michael The Sharper approach is the one I used when I was in your position and I highly recommend it. It uses hashing (the chance of error is almost non-existent) so you won't have to wait for long periods of time when you finds errors in perft 7 or 8. Michael (not the same Michael as above)
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