PlaySudoku.us
Medium · Puzzle #315
4
9
5
7
3
4
2
8
2
3
7
5
7
1
5
4
8
6
2
6
7
1
9
8
3
7
7
4
2
8
4
6
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.