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Expert · Puzzle #141
1
9
7
3
5
7
1
6
2
8
9
7
4
6
6
5
7
5
8
1
9
2
6
Techniques used
- Hidden Single
- Naked Triple
- Pointing Pair
- Box-Line Reduction
- Skyscraper
- Naked Single
- Naked Pair
- XY-Wing
- XY-Chain
"A mathematician is a device for turning coffee into theorems." — Paul Erdős
"A mathematician is a device for turning coffee into theorems." — Paul Erdős
"It is not what happens to you, but how you react to it that matters." — Epictetus
"It is not what happens to you, but how you react to it that matters." — Epictetus