PlaySudoku.us
Easy · Puzzle #69
6
1
8
5
4
3
9
3
7
2
1
5
8
8
5
3
9
2
6
7
9
1
5
8
7
4
5
6
9
7
2
1
8
5
6
4
6
4
7
8
1
5
3
5
7
6
9
4
1
8
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.