PlaySudoku.us
Evil · Puzzle #223
3
8
1
8
5
9
6
7
8
4
1
2
1
5
4
9
2
3
7
2
7
3
9
3
8
Techniques used
- Hidden Single
- Pointing Pair
- Box-Line Reduction
- 2-String Kite
- Finned X-Wing
- Naked Single
- Skyscraper
Complete a Medium puzzle using only box-based logic — no row or column scanning allowed.
Complete a Medium puzzle using only box-based logic — no row or column scanning allowed.
Dell Magazines published Sudoku as 'Number Place' for decades with minimal fanfare before Nikoli transformed it into a cultural phenomenon.
Dell Magazines published Sudoku as 'Number Place' for decades with minimal fanfare before Nikoli transformed it into a cultural phenomenon.