About Sudoku Mini
Sudoku Mini is a 4×4 version of the classic puzzle. Each row, column, and 2×2 box must contain the numbers 1–4 exactly once.
How to Play
- Click an empty cell to select it
- Tap a number from the keypad to fill it in
- Each row, column, and 2×2 box must have 1, 2, 3, and 4 exactly once
- Fill the whole board to win
Tips & Strategy
- Start with rows or columns that already have 3 numbers — only one option for the last cell
- Check each empty cell against its row, column, and box
- Use elimination — if a cell can only be one number, fill it in
- Pencil-mark possibilities mentally before committing
Brain Benefits
Sudoku is one of the most studied brain games in cognitive research. It builds logical reasoning, working memory, and patience.