Fischer Random Chess, a.k.a. Chess960, is played on a regular chess board with regular pieces and regular rules. The difference with regular chess is in the setup:

• The opening setup for Pawns is the same as in normal Chess.
• The opening setup for the officers on the first and last rows is chosen randomly while satisfying the following conditions:
  • The King must be placed somewhere between the Rooks.
  • The two Bishops must start on squares of different colors.
  • The Black setup mirrors the White setup, i.e. pieces on the same file are of the same type.
  • White castles in the following way (the Black procedure is equivalent). When castling left (O-O-O) , the King moves to c1 and the Rook moves to d1. When castling right (O-O) the King moves to g1 and the Rook moves to f1.