PlaySudoku.us
Medium · Puzzle #531
6
1
2
9
6
1
2
2
3
7
6
6
7
3
8
4
3
7
6
5
9
5
3
8
3
5
9
7
6
6
9
2
6
5
8
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.