PlaySudoku.us
Evil · Puzzle #796
4
1
6
5
2
3
6
7
5
4
6
7
3
5
1
6
9
7
9
5
8
7
3
4
Techniques used
- Hidden Single
- Naked Single
- Naked Pair
- Pointing Pair
- Pointing Triple
- Skyscraper
- W-Wing
"It is impossible to be a mathematician without being a poet in soul." — Sofia Kovalevskaya
"It is impossible to be a mathematician without being a poet in soul." — Sofia Kovalevskaya
Solving Sudoku exercises the prefrontal cortex — the brain region responsible for planning and decision-making.
Solving Sudoku exercises the prefrontal cortex — the brain region responsible for planning and decision-making.