PlaySudoku.us
Medium · Puzzle #149
6
1
3
4
7
2
8
4
3
1
5
8
6
3
2
5
5
9
7
4
9
4
6
5
8
5
4
7
5
5
9
8
"A champion is afraid of losing. Everyone else is afraid of winning." — Billie Jean King
"A champion is afraid of losing. Everyone else is afraid of winning." — Billie Jean King
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.