PlaySudoku.us
Hard · Puzzle #763
3
9
4
5
7
9
4
2
3
1
7
6
5
3
1
9
5
8
3
9
6
9
7
2
6
5
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.
"To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me." — Isaac Newton
"To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me." — Isaac Newton