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Evil · Puzzle #756
6
3
1
6
9
2
5
1
2
5
1
3
7
6
3
5
4
2
7
8
4
9
2
7
Techniques used
- Hidden Single
- Naked Single
- Pointing Pair
- Box-Line Reduction
- Skyscraper
- Naked Triple
- Forcing Chains
- Naked Pair
- XY-Wing
- XY-Chain
"One cannot escape the feeling that these mathematical formulas have an independent existence and an intelligence of their own." — Heinrich Hertz
"One cannot escape the feeling that these mathematical formulas have an independent existence and an intelligence of their own." — Heinrich Hertz
"Invention is the most important product of man's creative brain. The ultimate purpose is the complete mastery of mind over the material world." — Nikola Tesla
"Invention is the most important product of man's creative brain. The ultimate purpose is the complete mastery of mind over the material world." — Nikola Tesla