PlaySudoku.us
Easy · Puzzle #168
4
1
7
3
2
2
4
3
9
5
3
1
5
7
9
8
4
3
5
2
1
5
9
2
6
5
2
4
8
7
9
6
9
2
4
5
8
8
5
7
6
3
2
3
1
5
6
7
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.