PlaySudoku.us
Expert · Puzzle #697
4
1
2
7
8
3
4
8
5
5
7
4
3
9
6
3
6
9
4
1
2
9
5
Techniques used
- Naked Single
- Hidden Single
- Naked Pair
- Hidden Pair
- Pointing Pair
- Box-Line Reduction
- XY-Wing
- Skyscraper
"A champion is afraid of losing. Everyone else is afraid of winning." — Billie Jean King
"A champion is afraid of losing. Everyone else is afraid of winning." — Billie Jean King
"Opinion is the medium between knowledge and ignorance." — Plato
"Opinion is the medium between knowledge and ignorance." — Plato