PlaySudoku.us
Hard · Puzzle #588
6
2
8
7
6
5
3
4
1
8
9
7
1
5
3
4
8
5
9
5
2
7
3
1
4
6
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.
"Do what you can, with what you have, where you are." — Theodore Roosevelt
"Do what you can, with what you have, where you are." — Theodore Roosevelt