PlaySudoku.us
Easy · Puzzle #770
3
9
8
2
5
9
1
5
7
6
6
2
4
1
9
5
8
4
3
1
6
9
9
2
5
7
8
4
4
9
1
5
2
7
4
3
9
7
5
1
5
6
1
4
1
7
3
5
2
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.
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.