PlaySudoku.us
Easy · Puzzle #609
4
7
6
3
1
5
5
7
2
3
8
1
1
7
7
9
1
9
8
4
6
7
5
5
3
9
3
6
8
2
5
9
7
9
8
6
7
2
3
2
1
9
6
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.