Logic Masters Deutschland e.V.

Place the digits 1-9 once each in each row column and box

Anti Knight: Cells a knight's move in chess apart may not contain the same digit

Anti King: Cells a king's move in chess apart cannot contain the same digit

Nonconsecutive: Orthogonally adjacent cells may not contain consecutive digits.

Friendly Cells: A light blue cell is considered friendly. A friendly cell contains a digit equal to the cell's row, column, or box when considered in normal reading order. All friendly cells are given.

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