PlaySudoku.us
Medium · Puzzle #942
6
7
1
2
3
9
6
9
7
6
1
4
2
8
4
3
7
2
8
7
4
6
3
9
2
4
5
7
3
9
5
7
4
8
In 2005, Sudoku mania was so intense in the UK that it was credited with boosting pencil sales nationwide.
In 2005, Sudoku mania was so intense in the UK that it was credited with boosting pencil sales nationwide.
There are Sudoku variants with extra constraints: Killer Sudoku (cage sums), Diagonal Sudoku, and even 3D Sudoku.
There are Sudoku variants with extra constraints: Killer Sudoku (cage sums), Diagonal Sudoku, and even 3D Sudoku.