PlaySudoku.us
Expert · Puzzle #889
4
6
2
8
7
4
5
4
7
4
9
5
8
9
6
3
6
1
5
2
1
7
8
5
9
Techniques used
- Hidden Single
- Naked Single
- Naked Pair
- Naked Quad
- Pointing Pair
- Skyscraper
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.
For hard puzzles, do a full pencil-mark pass before making any moves. Incomplete marks are worse than no marks.
For hard puzzles, do a full pencil-mark pass before making any moves. Incomplete marks are worse than no marks.