PlaySudoku.us
Expert · Puzzle #771
6
5
4
9
2
3
6
9
5
3
2
3
7
4
1
6
1
4
3
7
6
4
2
8
Techniques used
- Naked Single
- Hidden Single
- Naked Pair
- Naked Triple
- Pointing Pair
- Swordfish
- XY-Wing
"Associate yourself with people who are likely to improve you." — Seneca
"Associate yourself with people who are likely to improve you." — Seneca
Sudoku was popularized worldwide by Wayne Gould, who spent 6 years writing a computer program to generate puzzles.
Sudoku was popularized worldwide by Wayne Gould, who spent 6 years writing a computer program to generate puzzles.