Author: Russell Reagan
Date: 10:20:16 10/18/03
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On October 18, 2003 at 12:00:09, Robert Allgeuer wrote: >Conclusion: >=========== > >My tests indicate that the overall playing strength of Crafty 18.15 remains >more or less unchanged by the addition of Multi-ProbCut. However, the >characteristic of the engine changes significantly due to ProbCut: Even though >nominal search depth is increased by one to two plies, tactical strength is >severely reduced. >Furthermore with ProbCut match results become more unpredictable and >inconsistent: Apparently there are types of opponents against which ProbCut >works very well and results in significantly improved results, but there are >also other opponents (the tactically stronger ones?) where ProbCut has exactly >the opposite effect. Hi Robert, I did some testing also, and I experienced basically the same thing. MPC Crafty seemed to perform a bit weaker all around for me, but when it came to blitz time controls it stood no chance. For instance, I have tested Crafty 19.03 against Ruffian at 1/0 and 2/0, and while Ruffian wins the matches, it is somewhat close. Around 55% to 45%. When I tested MPC Crafty in 1/0 and 2/0 (and even longer, I think up to 20/0) Ruffian basically butchered it. It got better as the time controls got longer though.
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