Normal sudoku rules apply. In each row the digit in the grey cell appears on the arrow in the next row. The digit to the right of the grey cell shows how many cells in the direction of the arrow this arrow cell must add to reach its own total.
Normal sudoku rules apply. In each row the digit in the grey cell appears on the arrow in the next row. The digit to the right of the grey cell shows how many cells in the direction of the arrow this arrow cell must add to reach its own total.