StrongPeeps

Sudoku

Summary

Sudoku is a brain-teasing number puzzle where you fill a 9×9 grid so that every row, column, and 3×3 box contains the digits 1 through 9 — no repeats allowed! It’s like a numbers party where every digit gets an invite, but no one can show up twice in the same room.

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Instructions

Download and print your Sudoku puzzle.

The board is a 9x9 grid, divided into nine smaller 3x3 boxes.
Some numbers are already filled in.
Your goal is to fill in the empty spaces with numbers from 1 to 9.
Each number must appear only once in every row, every column, and every 3x3 box.
Use logic, not guessing — every puzzle has only one correct solution.

Tip: Start with numbers that are easiest to place, and use pencil so you can adjust as you go.

Variations

Color Sudoku

Instead of numbers, use 9 different colors. Great for kids or just a fun twist on the original!

Diagonal Sudoku (X Sudoku)

In addition to the regular rules, both main diagonals must also contain the numbers 1–9 without repeats.

Sudoku Race

Print two copies of the same puzzle and race a friend to see who can solve it first!

Team Sudoku

Work in pairs or small groups and take turns placing numbers — great for classrooms or family game night.