PlaySudoku.us
Hard · Puzzle #487
9
3
5
6
8
7
4
5
6
5
9
4
6
2
2
8
7
9
4
1
7
9
7
3
8
9
1
2
Box-Line Reduction: if all candidates for a digit in a row or column are within one box, eliminate that digit from the rest of the box.
Box-Line Reduction: if all candidates for a digit in a row or column are within one box, eliminate that digit from the rest of the box.
Box-Line Reduction: if all candidates for a digit in a row or column are within one box, eliminate that digit from the rest of the box.
Box-Line Reduction: if all candidates for a digit in a row or column are within one box, eliminate that digit from the rest of the box.