PlaySudoku.us
Expert · Puzzle #812
9
2
7
7
9
4
5
4
1
8
7
3
6
5
2
8
1
2
8
1
6
7
3
4
There are 6,670,903,752,021,072,936,960 valid completed Sudoku grids — that's 6.7 sextillion.
There are 6,670,903,752,021,072,936,960 valid completed Sudoku grids — that's 6.7 sextillion.
"Without mathematics, there's nothing you can do. Everything around you is mathematics. Everything around you is numbers." — Shakuntala Devi
"Without mathematics, there's nothing you can do. Everything around you is mathematics. Everything around you is numbers." — Shakuntala Devi