PlaySudoku.us
Medium · Puzzle #153
8
5
4
7
4
6
2
1
9
5
7
3
2
7
2
1
7
2
8
5
4
3
6
9
7
9
3
2
2
3
2
9
3
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.