Frequently Asked Questions
What is a 4×4 starter sudoku?
A 4×4 starter sudoku has more given numbers than standard Easy puzzles — ideal for first-time solvers who need extra guidance. Once comfortable, progress to 4×4 Easy.
What numbers go in a 4×4 sudoku?
Digits 1 through 4 — each appearing exactly once in every row, column, and 2×2 box.