PlaySudoku.us
Easy · Puzzle #447
7
8
3
5
6
3
9
1
2
6
1
8
2
7
4
7
1
8
3
2
4
9
5
8
9
3
2
6
8
7
7
2
6
1
1
2
4
7
9
5
9
5
1
7
4
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.