PlaySudoku.us
Evil · Puzzle #317
3
5
1
2
1
2
6
9
7
3
1
8
2
7
2
5
9
9
5
1
7
4
8
7
8
Techniques used
- Naked Single
- Hidden Single
- Naked Pair
- Naked Triple
- Pointing Pair
- X-Wing
- UR Type 4
- W-Wing
- 2-String Kite
- Forcing Chains
- Skyscraper
- XY-Chain
"Look deep into nature, and then you will understand everything better." — Albert Einstein
"Look deep into nature, and then you will understand everything better." — Albert Einstein
Nikoli, the Japanese puzzle company that popularized Sudoku, requires all their puzzles to be created by hand — no computers.
Nikoli, the Japanese puzzle company that popularized Sudoku, requires all their puzzles to be created by hand — no computers.