Author: martin fierz
Date: 09:14:46 12/01/03
Go up one level in this thread
On December 01, 2003 at 11:11:30, Robert Hyatt wrote: >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 here's the article in question (7.4) from http://www.fide.com/official/handbook.asp?level=EE101 it's quite clear. don't know if it changed recently; i never noticed it change, but you have been around chess tournaments longer than i have :-) i once saw this being applied, they had to take back 20 moves or so! cheers martin Article 7: Irregularities 7.1 If during a game it is found that the initial position of the pieces was incorrect, the game shall be cancelled and a new game played. If during a game it is found that the only error is that the chessboard has been placed contrary to Article 2.1, the game continues but the position reached must be transferred to a correctly placed chessboard. 7.2 If a game has begun with colours reversed, then it shall continue, unless the arbiter rules otherwise. 7.3 If a player displaces one or more pieces, he shall re-establish the correct position on his own time. If necessary, either the player or his opponent shall stop the clocks and ask for the arbiter's assistance. The arbiter may penalise the player who displaced the pieces. 7.4 If during a game it is found that an illegal move has been made, the position immediately before the irregularity shall be reinstated. If the position immediately before the irregularity cannot be determined the game shall continue from the last identifiable position prior to the irregularity. The clocks shall be adjusted according to Article 6.14. Article 4.3 applies to the move replacing the illegal move. The game shall then continue from this reinstated position. After the action taken under Article 7.4(a), for the first two illegal moves by a player the arbiter shall give two minutes extra time to his opponent in each instance; for a third illegal move by the same player, the arbiter shall declare the game lost by this player. 7.5 If during a game it is found that pieces have been displaced from their squares, the position before the irregularity shall be re-instated. If the position immediately before the irregularity cannot be identified, the game shall continue from the last identifiable position prior to the irregularity. The clocks shall be adjusted according to Article 6.14. The game shall then continue from this re-instated position.
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