Normal sudoku rules apply. Successive digits along the green line must differ by at least 5. Each marked diagonal (in blue) must contain the digits 1 to 9 exactly once each. The inequality sign points to the smaller of the two digits.
Normal sudoku rules apply. Successive digits along the green line must differ by at least 5. Each marked diagonal (in blue) must contain the digits 1 to 9 exactly once each. The inequality sign points to the smaller of the two digits.