PlaySudoku.us
Hard · Puzzle #255
4
6
7
1
2
2
3
5
3
4
6
8
5
9
6
3
1
2
7
9
2
6
1
5
4
1
5
6
"It is not enough to have a good mind; the main thing is to use it well." — René Descartes
"It is not enough to have a good mind; the main thing is to use it well." — René Descartes
In competitive Sudoku, top solvers can complete an expert-level puzzle in under 3 minutes.
In competitive Sudoku, top solvers can complete an expert-level puzzle in under 3 minutes.