PlaySudoku.us
Medium · Puzzle #810
4
1
1
7
2
5
3
5
6
9
5
3
7
2
4
7
9
8
1
6
4
2
3
1
5
8
2
4
5
6
9
7
1
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.