PlaySudoku.us
Medium · Puzzle #736
3
8
7
6
3
9
4
3
1
4
6
2
8
5
1
9
7
9
5
8
7
2
4
3
9
3
6
8
1
5
2
9
7
4
Mathematical researchers have shown that the minimum number of givens (17) applies uniquely to the standard 9×9 format.
Mathematical researchers have shown that the minimum number of givens (17) applies uniquely to the standard 9×9 format.
When you find a naked pair, check if those same two cells also form a pair in their shared column.
When you find a naked pair, check if those same two cells also form a pair in their shared column.