PlaySudoku.us
Hard · Puzzle #469
1
5
7
4
9
2
8
6
3
7
3
7
5
4
7
4
8
3
9
5
1
8
9
7
5
1
8
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.