Author: Will Singleton
Date: 21:14:53 02/20/06
Go up one level in this thread
On February 20, 2006 at 21:39:05, Mike Byrne wrote: >On February 20, 2006 at 20:57:29, Will Singleton wrote: > >>On February 20, 2006 at 19:49:06, Mike Byrne wrote: >> >>>http://chessprogramming.org/cccsearch/ccc.php?find_thread=271717 >>> >>>Prevously, someone had speculated tha Fischer played Bxf5 due to the strength of >>>Black's position, i.e., Bxf5 may be the best hope for white to score a half >>>point. >>> >>>Crafty 20.3 agrees with that assessment. >> >>Yes, but so do a lot of other engines, and much faster (Rybka, Shredder, even >>Amateur). You'll have to come up with something more on-point if you're trying >>to show crafty's strength. >> >>Will > >Really ? If Shredder 9.1 finds it faster - please demostrate. On my machine >Shredder switches off after 15 ply and it does' back (alowwed 10 minutes). You >should try to stay more on-point with your replies ;>) > I don't want to put too much effort into this, since my goal isn't to criticize crafty. I certainly hope Bob is making good progress. Shredder finds the alternative solution, Nd2, which both Shredder and Rybka show is drawn. Rybka finds Bxf5 in about 11 sec. Amateur takes 2:30 to find Bxf5. Other progs perform similarly. Your test position is therefore flawed in two respects: it has an alternate solution, and other progs find your solution much faster. While it is admirable that crafty can find a solution almost as fast as amateur, I don't think it supports your thesis. Will
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