PlaySudoku.us
Evil · Puzzle #852
9
3
1
2
6
1
5
7
6
1
8
2
7
8
5
1
7
3
9
3
8
5
8
9
4
Techniques used
- Hidden Single
- Pointing Pair
- Skyscraper
- Forcing Chains
- Naked Single
- Naked Pair
- Box-Line Reduction
On average, a hard Sudoku requires 50–100 candidate eliminations before the grid is fully solved.
On average, a hard Sudoku requires 50–100 candidate eliminations before the grid is fully solved.
"Quality is not an act, it is a habit." — Aristotle
"Quality is not an act, it is a habit." — Aristotle