15-11-2012, 05:34 PM
Starting your opponent's clock without exchanging the pawn for another piece is an illegal move as Andy says and would result in a penalty which could be 2 minutes to the opponent or even the loss of the game depending on the type of chess being played.
Another point to be considered is the following scenario. Player pushes pawn to edge of the board and starts opponent's clock. Opponent replaces pawn with queen and announces that he is in stalemate.
The player then claims that he didn't make the move. All hell breaks out.
Another point to be considered is the following scenario. Player pushes pawn to edge of the board and starts opponent's clock. Opponent replaces pawn with queen and announces that he is in stalemate.
The player then claims that he didn't make the move. All hell breaks out.