PlaySudoku.us
Medium · Puzzle #553
5
1
4
6
3
8
1
4
1
6
3
5
6
7
9
3
8
7
1
5
7
1
9
6
1
2
4
5
7
8
9
1
6
2
1
9
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.