PlaySudoku.us
Medium · Puzzle #153
8
5
4
7
4
6
2
1
9
5
7
3
2
7
2
1
7
2
8
5
4
3
6
9
7
9
3
2
2
3
2
9
3
Check columns before rows — columns are often harder to complete and contain more useful constraints.
Check columns before rows — columns are often harder to complete and contain more useful constraints.
"Chess, like love, like music, has the power to make men happy." — Siegbert Tarrasch
"Chess, like love, like music, has the power to make men happy." — Siegbert Tarrasch