Author: Robert Hyatt
Date: 18:55:17 08/20/02
Go up one level in this thread
On August 20, 2002 at 21:53:20, Robert Hyatt wrote: >On August 20, 2002 at 17:34:06, Keith Ian Price wrote: > >>On August 20, 2002 at 16:20:49, Tony Werten wrote: >> >>>On August 20, 2002 at 15:38:28, Keith Ian Price wrote: >>> >>>>A friend of mine was playing a game between Gnuchess and wcrafty 18.15 under >>>>Arena 0.80, when Crafty made this somewhat astounding play: >>>> >>>>http://home.attbi.com/~kiprice/snap1.jpg >>>> >>>>Silly of gnuchess to move its knight and leave the pawn unprotected, eh? I guess >>>>my real question is, how can Arena cause Crafty to make such a play? >>>> >>>>hope the link works, >>>>kp >>> >>>Crafty seem to have been planning Nxe5 wich was also illegal and this might have >>>confused Arena. >>> >>>So question is why does Crafty want to play Nxe5 ? >>> >>>Tony >> >>On an earlier game, my friend said that Crafty played Ra1xBb4, but he didn't get >>a screenshot of it. >> >>kp > > >I can't imagine what one would have to do to cause Crafty to behave like >this. But anything is possible. I would be very surprised if a GUI could >cause this. Perhaps bad changes or a buggy compile could do the trick nicely, >however... Actually there is a way. The GUI could be sending the wrong moves (or bad moves) so that the position crafty is looking at is not the same as the position that is really on the board. I don't know a thing about arena... does it check moves for legality? If not, then if the opponent sends something bogus the two programs could certainly get "out of sync" and you could see such nonsense.
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