chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
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You have a 4x4 chessboard with four black rooks on the top and four white rooks in the bottom.
Your goal is to swap these rooks using the minimum number of steps. It does not matter which rook is
chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
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