PlaySudoku.us
Medium · Puzzle #175
8
2
9
1
4
3
6
2
8
2
1
6
7
8
1
4
7
3
7
8
3
1
6
3
2
5
9
2
8
3
1
5
5
3
7
4
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.