PlaySudoku.us
Hard · Puzzle #685
6
8
9
3
6
7
5
9
3
1
1
2
6
5
4
6
8
7
9
1
7
3
2
8
5
6
8
9
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.