PlaySudoku.us
Evil · Puzzle #605
6
1
7
1
4
8
1
9
5
6
7
8
4
2
7
1
9
3
7
2
9
3
8
6
1
"Everything should be made as simple as possible, but not simpler." — Albert Einstein
"Everything should be made as simple as possible, but not simpler." — Albert Einstein
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.