Author: Robert Hyatt
Date: 08:11:30 12/01/03
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On December 01, 2003 at 09:11:54, martin fierz wrote: >On November 30, 2003 at 21:52:27, Robert Hyatt wrote: > >>not it isn't because we don't use FIDE rules. There are specific computer >>chess rules that supersede them, particularly those about the operator making >>moves, and making mistakes, and backing up to correct mistakes. FIDE rules >>_never_ back up a game... > >kind of off-topic, but this is wrong! in human chess, if one player makes an >illegal move and neither player notices it at the moment when it's made, but one >player or perhaps the arbiter notices it later, you back up to the position >before the illegal move. i've seen this happen in a swiss tournament. there is >the remote possibility that the swiss chess federation has different rules than >fide, but i doubt it. > It might have changed. But I have seen cases of illegal castling. The game continued. Etc. In GM games even... My old FIDe rule book had some specific mention of this. I don't remember the specifics but something like "If the error is not found within 1 move (or some such limit) then the position stands and the game continues from that point. I can find PGN games where this happened, and I can't read them in with Crafty as it refuses to accept the illegal move that happened in the real game. >cheers > martin
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