PlaySudoku.us
Medium · Puzzle #235
6
1
9
7
7
8
6
1
2
1
9
3
5
6
5
2
5
4
2
3
2
7
1
7
6
1
5
9
4
5
4
2
3
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.
"The most important thing in chess is to know what is worth calculating and what to trust your intuition on." — Garry Kasparov
"The most important thing in chess is to know what is worth calculating and what to trust your intuition on." — Garry Kasparov