Author: Miguel A. Ballicora
Date: 14:10:13 01/29/01
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On January 29, 2001 at 16:14:52, José Carlos wrote: >On January 29, 2001 at 14:37:45, Dann Corbit wrote: > >>On January 29, 2001 at 09:08:59, José Carlos wrote: > >[snip] > >>For something more interesting, try both Vincent's position and also this one: [D]8/8/p1r5/6k1/KP6/8/8/5R2 b - - >> >>with both board formats. > > What should I do with this position? Generate moves? I mean, what's the test? >If it is the test about tablebases, I'm rewriting the engine from scratch, no >tablebases yet... :( > > José C. Hola Jose, I guess that the idea would be to test the move generator in both, "dense" and "sparse" positions. BTW, one test I would like to see is actually a "perft like" test (as in Crafty), where the whole tree is visited, generating and make/unmaking the moves and tested for legality at some point. It is like the engine with no evaluation whatsoever. Can you guys do something like that to compare? I am using bitboards (which is supposed to be ok for generating) but the bottleneck is in make/unmake. My program is terribly slow in this respect. If I do perft testing the nps, I get 85 knps in a AMD K6-2 400 mhz. Awful! When I start adding things... I end up in 30-40 knps. I consider the possibility to use 0x88, but... once you use bitboards, everything is related to that... I will have to rewrite everything. Regards, Miguel
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