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Evil · Puzzle #730
7
1
8
9
8
6
3
4
5
3
5
2
1
4
6
1
3
3
6
8
4
2
4
6
7
Techniques used
- Naked Single
- Hidden Single
- Naked Pair
- Pointing Pair
- Box-Line Reduction
- XY-Wing
- Forcing Chains
- X-Wing
Check columns before rows — columns are often harder to complete and contain more useful constraints.
Check columns before rows — columns are often harder to complete and contain more useful constraints.
"Nothing will work unless you do." — Maya Angelou
"Nothing will work unless you do." — Maya Angelou