Page:How to Play Chess (Rogers).djvu/63

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CHESS RULES
53

his Queen's Rook under the following conditions:—
(a) If neither his King nor the Rook with which he intends to castle has been moved.
(b) If the squares between the King and Rook are unoccupied.
(c) If the King is not in check.
(d) If the King in moving does not cross a square commanded by any opposing man.

A player must make evident his intention to castle by either:
(a) Moving his King first, or
(b) Moving King and Rook simultaneously.

XIII. The capture of a Pawn en passant is a forced move if no other move is possible.

XIV. If a player makes a false or illegal move when it is his turn to play, he must retract it and make a legal move or move his King as his opponent may select. If he captures a Piece or Pawn belonging to his adversary in an illegal or false move,