PlaySudoku.us
Evil · Puzzle #237
5
6
9
2
2
4
9
3
2
7
6
6
1
5
3
7
2
4
9
9
8
2
1
4
5
Techniques used
- Hidden Single
- Naked Pair
- Pointing Pair
- Box-Line Reduction
- 2-String Kite
- Simple Coloring
- Forcing Chains
- Naked Single
"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.