Normal sudoku rules apply. Digits along an arrow must sum to the digit in that arrow's circle. A digit in a circle shows how many circles DO NOT contain that digit. Additionally, a digit on an arrow shows how many arrows DO NOT contain that digit.
Normal sudoku rules apply. Digits along an arrow must sum to the digit in that arrow's circle. A digit in a circle shows how many circles DO NOT contain that digit. Additionally, a digit on an arrow shows how many arrows DO NOT contain that digit.