PlaySudoku.us
Easy · Puzzle #922
7
9
6
5
4
1
4
1
9
8
7
5
5
3
4
6
9
7
3
9
2
7
1
6
5
1
6
4
7
3
7
4
1
9
6
3
8
5
4
5
4
8
7
6
5
4
3
9
"The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together." — Carl Sagan
"The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together." — Carl Sagan
Group theory classifies Sudoku symmetries: the automorphism group of the 9×9 Sudoku grid has order 1,218,998,108,160.
Group theory classifies Sudoku symmetries: the automorphism group of the 9×9 Sudoku grid has order 1,218,998,108,160.