PlaySudoku.us
Expert · Puzzle #69
4
2
7
5
8
3
5
2
9
9
2
3
2
6
4
7
1
5
8
1
9
3
4
Techniques used
- Naked Single
- Hidden Single
- XY-Wing
- 2-String Kite
- Naked Pair
- XY-Chain
"There are no solved problems; there are only problems that are more or less solved." — Henri Poincaré
"There are no solved problems; there are only problems that are more or less solved." — Henri Poincaré
"Look deep into nature, and then you will understand everything better." — Albert Einstein
"Look deep into nature, and then you will understand everything better." — Albert Einstein