Sudoku

About Sudoku

Sudoku is the world's favorite number puzzle. Fill in the 9×9 grid so that every row, every column, and every 3×3 box contains the numbers 1 to 9 with no repeats. Some numbers are given to get you started — use logic to work out the rest. Pick easy, medium, or hard, and the puzzle gently highlights any clashes so you can learn as you go. A brilliant workout for logical thinking.

How to Play

• Tap an empty cell to select it.
• Tap a number (or press 1–9) to place it in that cell.
• Each row, column, and 3×3 box must contain 1 to 9 with no repeats.
• Fill the whole grid correctly to solve the puzzle. Repeated numbers turn red.

Tips & Tricks

• Start with rows, columns, or boxes that already have lots of numbers.
• If a cell can only be one number, fill it in with confidence.
• Use the red clashes to spot and fix mistakes.

What Kids Learn

Sudoku is more than fun — it helps build real skills:

• Logical deduction
• Number reasoning
• Patience and focus