PlaySudoku.us
Hard · Puzzle #749
3
5
9
7
5
9
1
8
5
7
4
8
1
7
5
2
8
5
7
6
9
4
3
4
7
9
2
5
"The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane." — Nikola Tesla
"The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane." — Nikola Tesla
The BBC produced a television game show based on Sudoku in 2005, during the height of the puzzle's popularity.
The BBC produced a television game show based on Sudoku in 2005, during the height of the puzzle's popularity.