PlaySudoku.us
Medium · Puzzle #391
5
9
6
7
4
7
5
8
8
5
9
6
9
7
8
2
7
8
9
3
1
8
4
8
5
8
4
7
3
6
5
3
2
7
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.