PlaySudoku.us
Hard · Puzzle #568
1
2
8
7
6
8
3
6
1
6
1
8
9
2
3
6
4
4
7
7
1
4
9
2
5
8
1
6
2
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.