How to Play a 9x9 Sudoku Puzzle
A 9x9 sudoku puzzle is a classic logic game with a grid of 81 cells, divided into nine 3×3 boxes. The goal is to fill in the numbers 1 through 9 so that each number appears only once in every row, every column, and each box. The numbers given at the start of the puzzle must remain unchanged. You only fill in the empty spaces using logic, not guessing.
How does difficulty work in 9x9 sudoku?
The difficulty depends on how many numbers are filled in at the start, and where they are placed. Easy puzzles have more clues, while harder ones require deeper thinking and advanced strategies. All puzzles still follow the same basic rules.
Tips for using 4-in-1 sudoku printables
Print several pages and keep them in a binder or folder for easy access. You can also laminate them and use dry-erase markers to reuse the same puzzles multiple times. Perfect for classrooms, waiting rooms, and travel kits.
Mix puzzle difficulty on each page to offer progressive challenges. You can also cut out each puzzle to create individual cards for learning centers or quick brain breaks. For fun at home, turn it into a game where each player solves a different grid and compares time or accuracy.