PlaySudoku.us
Expert · Puzzle #552
8
3
9
4
6
8
3
3
1
2
5
1
4
5
1
5
6
3
2
5
9
7
1
6
4
Nikoli, the Japanese puzzle company that popularized Sudoku, requires all their puzzles to be created by hand — no computers.
Nikoli, the Japanese puzzle company that popularized Sudoku, requires all their puzzles to be created by hand — no computers.
There is a 'Sudoku variant' called Samurai Sudoku, consisting of five overlapping 9×9 grids sharing corner boxes.
There is a 'Sudoku variant' called Samurai Sudoku, consisting of five overlapping 9×9 grids sharing corner boxes.