Author: Mike Byrne
Date: 09:34:04 01/01/04
Go up one level in this thread
On January 01, 2004 at 11:36:42, Brian Katz wrote: >On January 01, 2004 at 11:17:32, Brian Katz wrote: > >>I have found that Fritz 8 (8.0.0.8 and 8.0.0.23)has trouble solving some >>positions that other engines solve in a matter of seconds. Such is the case with >>the recent position: >> >>[D]8/8/K6p/6p1/8/8/k5PP/8 w >> >>Of course Tablebases are needed to find the mate in 29, which is the case with >>Ruffian, Yace and Crafty 19.06. Hiarcs finds it in 30. >> >>Fritz 8.0.0.8 did not find it at all as yet. Fritz 8.0.0.23 just found it as I >>am sending this post after 00:08:26, but it shows mate in 31 instead. >>Once Fritz 8 finds a mate, it seems to end it's search whereas, some other >>engines continue to search and find quicker mates. >> >>Any and all opinions welcomed. >>Brian > >I have also found that with other engines, once the mate is found, you can >simply force the engine to move and play over the entire sequence of moves, such >as the mate in 29 in the above position. Not so with Fritz 8 (8.0.0.23) This may >be the case with 8.0.0.8 also, but that engine has yet to find the mate at all >it this position. !! This time it found the mate in 00 :05:16 .... then when >I forced it to move, it began the evaluation all over again from the new move >on. >Very TIME CONSUMING >If you force the first few moves of this mating in 29 sequence, then Fritz >starts to find the mate quickly, but it seems to flucuate from mating moves to >just winning evaluations and then back and forth. Then it plays mates in less >than 29 by not giving the best replies for Black. >Brian I have the same porblem with Fritz - and likewise no problem with Crafty 19.08 Se 2004 under the Fritz GUI.
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