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Evil · Puzzle #423
8
1
7
9
3
5
8
1
3
6
8
9
5
6
1
8
7
4
7
8
2
5
7
1
Techniques used
- Naked Single
- Hidden Single
- Naked Pair
- Naked Quad
- W-Wing
- Pointing Pair
- XY-Wing
- 2-String Kite
- Finned X-Wing
- XY-Chain
"It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt." — Mark Twain
"It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt." — Mark Twain
"Mathematics is the door and key to the sciences." — Roger Bacon
"Mathematics is the door and key to the sciences." — Roger Bacon