PlaySudoku.us
Evil · Puzzle #538
1
8
4
9
7
9
6
8
5
2
5
3
1
6
2
9
3
2
5
1
6
4
5
2
Techniques used
- Hidden Single
- Naked Pair
- Pointing Triple
- Pointing Pair
- XY-Chain
- Naked Triple
- Naked Quad
- Box-Line Reduction
- Forcing Chains
- Naked Single
- XY-Wing
"The only way to prove that you're a good sport is to lose." — Ernie Banks
"The only way to prove that you're a good sport is to lose." — Ernie Banks
Sudoku is listed as a recommended mental exercise in several cognitive rehabilitation programs for TBI (traumatic brain injury) patients.
Sudoku is listed as a recommended mental exercise in several cognitive rehabilitation programs for TBI (traumatic brain injury) patients.