PlaySudoku.us
Hard · Puzzle #366
3
9
3
7
1
2
8
1
7
9
6
6
9
2
3
8
6
4
1
4
3
7
9
1
2
6
4
2
9
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.