PlaySudoku.us
Evil · Puzzle #461
8
2
1
3
5
3
7
6
4
1
8
5
7
9
7
6
8
5
3
8
9
5
1
9
2
6
Techniques used
- Naked Single
- Hidden Single
- Naked Triple
- Naked Pair
- Naked Quad
- Pointing Pair
- XY-Wing
- Finned X-Wing
- Forcing Chains
Japan has a national Sudoku puzzle competition with separate categories for speed and accuracy.
Japan has a national Sudoku puzzle competition with separate categories for speed and accuracy.
Can you identify the technique needed to make the next move before filling in any digit? Name it, then use it.
Can you identify the technique needed to make the next move before filling in any digit? Name it, then use it.