• Normal Sudoku rules apply
• Boxer: exactly one cell in each row, column, and box is a "boxer", and boxer cells contain a complete set of the digits 1-9. The value of a boxer cell is equal to its box number, the value of any other cell is equal to its digit
• Arrows: the sum of the values along an arrow is equal to the value in the connected circle
Lösungscode: The digits of column 6, top to bottom