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
SC-Chess
chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
WGR10
chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
The Gibraltar Magazine April 2008 by Rock Publishing Ltd - Issuu
chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
Rook but from Shadowverse chess — instead of moving it, you can
chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
chess - A look at the rooks - Puzzling Stack Exchange
chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
xskak - Promoted pawn keeps a pawn in the diagram - TeX - LaTeX
chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
In how many ways can you place 4 rooks on a chessboard? - Quora
chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
Untitled Document
chess - Swapping rooks in a 4x4 board - Puzzling Stack Exchange
On an 8x8 chessboard, a pawn has been placed on the third column
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