Mini Sudoku 4×4
The beginner-friendly Sudoku. Each row, column, and 2×2 box must contain the digits 1–4 exactly once.
or generate a puzzle to get started
About 4×4 Mini Sudoku
The 4×4 Mini Sudoku is a simplified version of the classic 9×9 puzzle. The grid contains 16 cells divided into four 2×2 boxes. Fill every row, column, and box with the digits 1, 2, 3, and 4 — no repeats.
Mini Sudoku is ideal for introducing the puzzle concept to children or for a quick mental exercise.
Frequently Asked Questions
What is 4×4 Mini Sudoku?
A smaller, beginner-friendly version of Sudoku played on a 4×4 grid with digits 1–4.
Is it harder or easier than 9×9?
Much easier — fewer cells and fewer digits means most 4×4 puzzles can be solved in seconds.
Can beginners learn Sudoku using the 4×4 grid?
Yes! The 4×4 format is the best way to learn the core rules before progressing to larger grids.
How to Play Mini Sudoku 4×4
1 Rules
- ✓ Fill every row with the digits 1–4, no repeats.
- ✓ Fill every column with the digits 1–4, no repeats.
- ✓ Fill every 2×2 box with the digits 1–4, no repeats.
- ✓ Pre-filled clue cells cannot be changed.
2 Strategies
- 💡 Count Missing: Each row, column, and 2×2 box needs exactly 4 digits. Spotting the two already present tells you the two that remain.
- 💡 Box Quick Fill: With only 4 cells per box, two given digits instantly reveal where the other two must go — no advanced logic needed.
- 💡 Row–Column Intersection: If a missing digit must appear in one specific row of a box, eliminate it from the rest of that row outside the box.
Tip: Most Mini Sudoku puzzles can be solved in under 2 minutes. Focus on the 2×2 boxes first — with so few cells, even a single clue gives you a lot of information.