Knight's tour - Wikipedia
An open knight's tour of a chessboard An animation of an open knight's tour on a 5 × 5 board A knight's tour is a sequence of moves of a knight on a chessboard such that the knight visits every square exactly once. If the knight ends on a square that is one knight's move from the beginning square (so that it could tour the board again immediately, following the same path), the tour is closed (or r
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