PlaySudoku.us
Hard · Puzzle #879
4
1
9
3
8
4
4
3
2
8
8
6
7
2
5
1
3
7
2
4
5
3
4
4
5
9
1
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