Author: Shep
Date: 04:03:27 07/13/99
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On July 13, 1999 at 05:10:41, Didzis Cirulis wrote: >Hi, > >When playing on FICS (Computer(c)) Chess Tal lost a completely won game due to >some mismanagement of time. It did run out of time. So how does this program >learn in this situation? Will this line be considered good or bad next game? > >One more question: What happens if I start a new game when I am going to lose >this one? Is program learning at all in this situation? Is this learning >correct? Ed wrote that at least for Rebel, learning works OK in that case, even if the game does not end by checkmate or resigning on your part. IIRC Crafty also handles learning depending on the evaluation only, not "3rd party effects" like running out of time. This is reasonable; imagine the opposite situation where you have a won position against the program and then lose on time or resign by accident... Another "out-of-time" learning problem is perceptible in the Fritz GUI: If you play against another program (regardless if manually or eng-eng) and allow the opponent's time to run out, the Fritz GUI will flag this game as won in its book learning. So you should always stop the opponent's clock with "Ctrl-Q" after the Fritz GUI has moved. And in eng-eng Blitz games, you should disable learning altogether because one engine may lose on time in a won or drawn situation (seen this many times in 5-min Blitz). --- Shep
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