PlaySudoku.us
Expert · Puzzle #225
6
2
4
3
4
9
7
1
2
9
4
8
5
6
8
7
4
9
9
8
3
5
2
7
Techniques used
- Naked Single
- Hidden Single
- Naked Pair
- Skyscraper
- Hidden Pair
- Pointing Pair
- XY-Wing
"Obstacles are those frightful things you see when you take your eyes off your goal." — Henry Ford
"Obstacles are those frightful things you see when you take your eyes off your goal." — Henry Ford
The 4×4 mini-Sudoku is called 'Shidoku' and can be solved without any pencil marks — it's a common puzzle for children.
The 4×4 mini-Sudoku is called 'Shidoku' and can be solved without any pencil marks — it's a common puzzle for children.