PlaySudoku.us
Hard · Puzzle #744
6
8
9
1
3
2
2
4
5
5
7
1
6
3
8
6
1
4
1
3
5
2
4
8
6
1
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.