PlaySudoku.us
Medium · Puzzle #45
9
8
2
4
2
7
1
9
1
7
4
6
3
2
5
3
1
4
6
7
8
5
1
4
8
7
3
4
1
9
1
"Knowing is not enough; we must apply. Willing is not enough; we must do." — Bruce Lee (attributed to Goethe)
"Knowing is not enough; we must apply. Willing is not enough; we must do." — Bruce Lee (attributed to Goethe)
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.