PlaySudoku.us
Medium · Puzzle #418
4
1
5
2
8
4
2
9
1
8
6
3
6
8
1
5
9
2
3
5
3
1
1
7
8
4
6
8
7
9
7
6
8
3
6
4
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.