PlaySudoku.us
Easy · Puzzle #278
8
6
2
7
3
9
9
7
5
2
6
6
3
8
4
5
7
8
2
9
1
3
2
4
6
3
7
8
5
8
7
9
4
2
6
2
6
4
8
1
3
3
5
1
9
8
6
3
5
1
"The roots of education are bitter, but the fruit is sweet." — Aristotle
"The roots of education are bitter, but the fruit is sweet." — Aristotle
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.