PlaySudoku.us
Evil · Puzzle #555
4
5
3
9
3
1
5
2
9
6
2
1
2
6
7
8
2
1
6
4
7
8
9
8
5
7
Techniques used
- Hidden Single
- Naked Triple
- Naked Single
- Naked Pair
- Pointing Pair
- Finned X-Wing
- Forcing Chains
The first modern Sudoku puzzle was published in 1979 by Howard Garns in Dell Pencil Puzzles & Word Games.
The first modern Sudoku puzzle was published in 1979 by Howard Garns in Dell Pencil Puzzles & Word Games.
In Japan, Sudoku is most popular among office workers and is often solved during commutes on trains.
In Japan, Sudoku is most popular among office workers and is often solved during commutes on trains.