Originally posted by AussieDave
Sorry if this has been discussed before, I looked and couldn't find it.
I recently played an OTB game and then we noticed that I had been in check for a while but we had both made several moves since the check took place.
I know it shouldn't have happened and I should have been paying more attention, but what is the correct procedure? Do we go bac ...[text shortened]... ock in this case if it's a timed game? Or is it a draw?
Your answers would be appreciated.
I assume that you play under Fides laws of chess:
Go back to the last known legal position. The arbiter must set the times after his best judgement. If the piece moved on the 1st illigal move can make a legal move - it should be moved (touched piece).
If an irregularity occurs and/or the pieces have to be restored to a previous position, the arbiter shall use his best judgement to determine the times to be shown on the clocks. He shall also, if necessary, adjust the clock’s move counter
If during a game it is found that an illegal move, including failing to meet the requirements of the promotion of a pawn or capturing the opponent’s king, has been completed, 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 6.13. The Articles 4.3 and 4.6 apply to the move replacing the illegal move. The game shall then continue from this re-instated position.
Edit: givin that the illigal moves/positions are discovered during the game. If finished the results stands - as G.P. says.