PlaySudoku.us
Expert · Puzzle #411
4
5
6
3
9
1
1
3
8
9
5
2
8
9
7
5
4
2
1
3
4
4
7
6
Techniques used
- Hidden Single
- Pointing Pair
- 2-String Kite
- Naked Single
- XY-Chain
- Naked Triple
- Box-Line Reduction
- Naked Pair
- X-Wing
- Skyscraper
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.
"The difference between the impossible and the possible lies in a person's determination." — Tommy Lasorda
"The difference between the impossible and the possible lies in a person's determination." — Tommy Lasorda