Penalties. Penalties can be enforced only at the time an offence is committed, and before any move is made thereafter.
A player touching one of his men, when it is his turn to play, must move it. If it cannot be moved he must move his King. If the King cannot move, no penalty can be enforced.
For playing two moves in succession, the adversary may elect which move shall stand.
For touching an adversary’s man, when it cannot be captured, the offender must move his King. If the King cannot move, no other penalty can be enforced. But if the man touched can be legally taken, it must be captured.
For playing a man to a square to which it cannot be legally moved, the adversary, at his option, may require him to move the man legally, or to move the King.
For illegally capturing an adversary’s man, the offender must move his King, or legally capture the man, as his opponent may elect.
For attempting to Castle illegally, the player doing so must move either the King or Rook, as his adversary may dictate.
For touching more than one of the player’s own men, he must move either man that his opponent may name.
For touching more than one of the adversary’s men, the offender must capture the one named by his opponent, or if either cannot be captured, he may be required to move the King or capture the man which can be taken, at the adversary’s option; or, if neither can be captured, then the King must be moved.