Author: Robert Hyatt
Date: 16:17:55 04/25/04
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On April 25, 2004 at 17:41:57, Dieter Buerssner wrote: >On April 25, 2004 at 17:19:26, Robert Hyatt wrote: > >>What is the "bug" about claiming a draw. This was discussed at length here and >>Crafty does it according to the FIDE rules now. Does Arena not like that??? > >Independent of the CP issue of this thread. I wonder, how you do it as a >winboard engine. Of course, it will be possible in "console mode". But I see no >way, to correctly claim a draw due to Fide rules at the first possible point in >the WB/XB protocol. This issue was discussed several times in the WB mailing >list (for example Dann Corbit and myself complained about this, in the list and >by email). > >To just show one possible problem. Say you are intending to do the 50th move >now. You send draw - WB relays this to ICC. ICC does not exept it yet (it did >not see the 50th move, yet). After draw, you send the move. Opponent answers >immediatly (perhaps he had a win in 101 plies, really - other situations are >also possible). The WB GUI (and ICC) ignored your first draw claim (you did not >send a move yet, the GUI cannot know, what you wrote on your score sheet). >Perhaps you get mated in the next move. You might have claimed just draw again, >but the opponent might have answered faster by the mating move (who really was >faster will not be easy to know). To fix this, an improvement of the WB protocol >would be needed. For example something like "draw move" meaning "I claim a draw, >by writing move on my score sheet". It is not possible at the moment to my >knowledge. > >Regards, >Dieter In real games, I _always_ run in text mode, so that there will be no "issues" in a tournament. In winboard I do only what can be done, but on a chess server it works fine since you can send "draw" and "move" if you want to claim the draw after the move... Or you can send "draw move" on one line on ICC...
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