Normal sudoku rules apply, and identical digits cannot be a knight's move apart. Cages sum to the number given, and clues outside the grid show the total of digits between X and Y, which are consistent for the whole puzzle.
Normal sudoku rules apply, and identical digits cannot be a knight's move apart. Cages sum to the number given, and clues outside the grid show the total of digits between X and Y, which are consistent for the whole puzzle.