PlaySudoku.us
Medium · Puzzle #117
9
6
3
1
8
1
5
2
4
6
5
7
9
7
8
1
3
3
2
5
6
8
6
3
3
2
5
9
8
6
5
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.