PlaySudoku.us
Medium · Puzzle #18
8
1
3
9
9
5
4
3
1
8
4
3
6
8
1
9
6
2
9
8
5
1
6
5
3
3
8
4
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.