How to Play 4x4 Mini Sudoku
Learn the simple 1-to-4 rules for rows, columns, and boxes in a beginner-friendly Sudoku grid.
The three rules
Every row must contain 1, 2, 3, and 4 exactly once. Every column follows the same rule, and each outlined 2 by 2 box also needs all four numbers. No arithmetic is required; the numbers are symbols.
Find what is missing
If a row already contains 1, 3, and 4, its empty square must be 2. This direct missing-number check is the fastest way to begin a small grid and often solves the highlighted square immediately.
Confirm with another direction
After finding a likely number from the row, check its column and 2 by 2 box. A valid answer must satisfy all three areas. That second check catches most quick mistakes before you choose.
Why the mini version helps
A 4 by 4 grid makes the rules visible without the longer commitment of a standard 9 by 9 puzzle. MyQRify highlights one square per round, so you can practise the core logic in a short browser session.