Sudoku
Fill the 9x9 grid with numbers 1-9 with no repeats in rows or columns!
About Sudoku
Sudoku is the world-famous logic puzzle that has captivated millions. Fill a 9×9 grid so that every row, every column, and every 3×3 box contains the digits 1 through 9 exactly once. Starting from a partially filled grid, use logical deduction — never guessing — to determine each missing number. With multiple difficulty levels from gentle introductions to fiendishly hard expert puzzles, Sudoku provides an endlessly satisfying mental workout that sharpens your logical thinking and concentration.
Game Features
How to Play
- 1Tap an empty cell and select a number from 1 to 9
- 2Every row must contain each digit 1-9 exactly once
- 3Every column must contain each digit 1-9 exactly once
- 4Every 3×3 box must contain each digit 1-9 exactly once
- 5Use pencil marks to note possible candidates in a cell
- 6Complete the entire grid to solve the puzzle
Tips & Strategies
Start with rows, columns, or boxes that have the most filled cells
Use pencil marks to track candidate numbers in each empty cell
Look for "naked singles" — cells with only one possible number
Scan rows and columns to find where a specific number must go
Practice elimination: if a number appears in a row/column, it cannot repeat
Never guess — every cell can be solved through pure logic
Work on easier puzzles first to build up your solving techniques
