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Evil · Puzzle #827
6
7
3
9
5
1
5
7
4
8
6
7
3
4
9
4
8
4
7
8
5
3
2
8
6
5
Techniques used
- Hidden Single
- Naked Pair
- Naked Single
- Naked Triple
- Naked Quad
- Pointing Triple
- Pointing Pair
- Swordfish
- W-Wing
- XY-Wing
- XY-Chain
"The secret of getting ahead is getting started." — Mark Twain
"The secret of getting ahead is getting started." — Mark Twain
"Curiosity is the engine of achievement." — Ken Robinson
"Curiosity is the engine of achievement." — Ken Robinson