PlaySudoku.us
Evil · Puzzle #607
3
7
8
9
2
6
3
8
4
6
3
8
1
8
5
2
2
3
8
5
7
9
1
6
Techniques used
- Hidden Single
- Naked Triple
- Naked Pair
- Naked Single
- Pointing Pair
- 2-String Kite
- Finned X-Wing
- Forcing Chains
- XY-Chain
- XY-Wing
"Curiosity is the engine of achievement." — Ken Robinson
"Curiosity is the engine of achievement." — Ken Robinson
A valid Sudoku puzzle has exactly one solution. If it has two or more, it's considered broken.
A valid Sudoku puzzle has exactly one solution. If it has two or more, it's considered broken.