PlaySudoku.us
Hard · Puzzle #483
1
3
6
2
2
8
1
6
9
7
8
5
8
3
1
6
8
4
3
8
4
3
3
6
4
5
9
1
8
The number of essentially different Sudoku grids (accounting for symmetry) is 5,472,730,538 — about 5.5 billion.
The number of essentially different Sudoku grids (accounting for symmetry) is 5,472,730,538 — about 5.5 billion.
The number of essentially different Sudoku grids (accounting for symmetry) is 5,472,730,538 — about 5.5 billion.
The number of essentially different Sudoku grids (accounting for symmetry) is 5,472,730,538 — about 5.5 billion.