Medium Mini Sudoku
Ready to sharpen your skills? Medium Mini Sudoku puzzles introduce interactions between the variant constraint and classic Sudoku techniques. You'll need to combine both skill sets to progress.
What to expect at Medium level
Medium Mini Sudoku puzzles require you to combine the variant constraint with standard Sudoku deduction - Naked pairs, hidden singles, and unit scans. The constraint is more tightly woven into the grid, so you'll need to think a few steps ahead.
Best suited for players comfortable with Easy Mini Sudoku who want to build their pattern recognition.
Difficulty overview
About Mini Sudoku
Mini Sudoku uses smaller grids: the popular 4×4 version uses digits 1–4 in four 2×2 boxes, and the 6×6 version uses digits 1–6 in six 2×3 boxes. The rules are identical to standard 9×9 Sudoku but scaled down. Mini Sudoku is ideal for introducing children to Sudoku logic, for quick puzzle sessions, or as a warm-up before tackling larger grids.
Solving Techniques for Medium Level
| Technique | Description | Level |
|---|---|---|
| Direct Scanning | With only 16 cells and digits 1–4, scan each row, column, and 2×2 box for missing digits. Most easy puzzles resolve in a single pass. | Beginner |
| Single Candidate | If only one cell in a row, column, or box can hold a particular digit, place it immediately. | Beginner |
| Box–Row/Column Interaction | Each 2×2 box shares all four cells with exactly two rows and two columns. Every box placement simultaneously restricts two full rows and two full columns. | Beginner |