PlaySudoku.us
Medium · Puzzle #985
7
3
4
6
8
5
4
1
7
2
5
9
3
7
5
1
4
9
8
6
7
3
3
7
5
8
6
9
3
9
5
After placing a digit, immediately check its row, column, and box for new naked singles.
After placing a digit, immediately check its row, column, and box for new naked singles.
If you're stuck, look for Pointing Pairs: two candidates in a box that share a row or column.
If you're stuck, look for Pointing Pairs: two candidates in a box that share a row or column.