PlaySudoku.us
Expert · Puzzle #174
2
8
4
6
1
5
8
5
3
4
2
9
3
5
8
2
8
6
4
9
6
2
3
2
1
5
Techniques used
- Hidden Single
- Naked Pair
- Naked Single
- Skyscraper
- XY-Wing
"The beginning is the most important part of the work." — Plato
"The beginning is the most important part of the work." — Plato
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.