PlaySudoku.us
Hard · Puzzle #204
9
8
6
3
5
5
8
1
4
5
2
4
7
1
9
6
5
8
4
2
4
7
1
3
3
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