PlaySudoku.us
Hard · Puzzle #478
5
6
1
8
7
3
4
8
9
5
4
1
2
7
4
6
8
3
6
2
7
6
5
3
8
8
3
9
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.
"You miss 100% of the shots you don't take." — Wayne Gretzky
"You miss 100% of the shots you don't take." — Wayne Gretzky