Author: leonid
Date: 14:40:58 01/29/01
Go up one level in this thread
On January 29, 2001 at 17:10:13, Miguel A. Ballicora wrote: >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 Miguel, we have almost indentical computer to compare. Can you say me (to have some initial idea) how many moves you generate for this position, or any other position, if you like. For me the easest to compare will be generation of moves where all legality is already checked. Even better if some move order (not final one but initial, general) is already done in move generator. This what I have in my move generator. To compare some other way signify for me to write some additional code. Thanks, Leonid.
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