PlaySudoku.us
Hard · Puzzle #396
4
1
6
9
8
2
5
9
4
6
1
9
4
5
2
9
4
8
5
3
9
2
8
6
3
9
7
8
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.
"Even the laziest king flees wildly in the face of a double check!" — Aaron Nimzowitsch
"Even the laziest king flees wildly in the face of a double check!" — Aaron Nimzowitsch