PlaySudoku.us
Evil · Puzzle #742
1
2
6
5
4
1
3
2
7
3
7
9
7
2
3
8
9
8
2
7
5
3
1
8
2
"In mathematics, the art of proposing a question must be held of higher value than solving it." — Georg Cantor
"In mathematics, the art of proposing a question must be held of higher value than solving it." — Georg Cantor
The hardest published Sudoku puzzle — graded by the number of search nodes a computer needs — was named 'Al Escargot' by its creator.
The hardest published Sudoku puzzle — graded by the number of search nodes a computer needs — was named 'Al Escargot' by its creator.