

White can't castle, because the King has already moved. In this diagram both players have lost the right to castle.

This is known as 'castling on opposite sides' of the board. Sometimes one player castles to the left and the other castles to the right.

There is, of course, no rule that both players have to castle on the same side. This diagram shows the board after both players have castled to the left. The diagram shows how the pieces end up after castling in the previous diagram. Since the other pieces have all disappeared in the diagram, the condition for castling is met.Ĭastling is executed by moving the King two squares toward the Rook, then hopping the Rook over the King. The second restriction is that the squares between the King and the Rook must be empty. Sometimes beginning players forget - 'You already moved that Rook'! 'No, I didn't'! 'Yes, you did'! 'Prove it'! - In this diagram, you have to take my word for it. How do you know the Kings and Rooks haven't moved and then moved back to their initial squares? If you're playing a game with someone else, you have to remember. The diagram shows the ideal case for both Kings and all four Rooks. Of the several restrictions on castling, the first is that the King and the Rook to be moved are on their initial squares and haven't moved. The pieces are always the King and one of the Rooks. Once during the game, the King can make a special move.Ĭastling is the only situation where you can move two pieces at the same time.
