PlaySudoku.us
Hard · Puzzle #766
3
8
1
9
2
9
3
1
4
2
1
9
9
7
1
1
7
8
2
3
9
7
3
8
9
5
2
4
1
4
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.