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Evil · Puzzle #767
6
4
7
2
3
3
1
9
1
5
9
1
7
7
8
2
5
8
7
5
2
8
1
5
4
Techniques used
- Hidden Single
- Pointing Pair
- Box-Line Reduction
- Forcing Chains
- Naked Single
- X-Wing
- 2-String Kite
- XY-Chain
- Naked Triple
"Pure mathematics is, in its way, the poetry of logical ideas." — Albert Einstein
"Pure mathematics is, in its way, the poetry of logical ideas." — Albert Einstein
"In science, there are no shortcuts to truth." — Karl Popper
"In science, there are no shortcuts to truth." — Karl Popper