PlaySudoku.us
Expert · Puzzle #722
3
7
8
1
4
4
2
5
8
3
1
7
2
9
7
8
4
9
3
6
5
1
5
1
9
Techniques used
- Naked Single
- Hidden Single
- Naked Pair
- Naked Triple
- Simple Coloring
- XY-Chain
- Pointing Pair
- XY-Wing
"That which does not kill us makes us stronger." — Friedrich Nietzsche
"That which does not kill us makes us stronger." — Friedrich Nietzsche
"Chess is, above all, an art." — Mikhail Tal
"Chess is, above all, an art." — Mikhail Tal