PlaySudoku.us
Easy · Puzzle #886
2
5
9
1
8
8
2
6
9
3
4
1
5
2
1
9
2
5
7
1
3
6
4
2
9
8
2
9
8
5
3
1
3
6
5
9
4
3
2
2
5
6
1
3
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.
The 16×16 version of Sudoku is called "Super Sudoku" and uses hexadecimal digits or letters.
The 16×16 version of Sudoku is called "Super Sudoku" and uses hexadecimal digits or letters.