The Classic Number Puzzle Game
Challenge your mind with Sudoku — the world's most popular logic puzzle. Thousands of unique puzzles, multiple difficulty levels, and zero distractions. Completely free and works offline.
Sharpen your logical thinking and concentration with daily puzzle challenges designed to keep your mind sharp.
Thousands of uniquely generated Sudoku boards — you'll never run out of new challenges to solve.
Play anywhere, anytime — no internet connection required. All puzzles are available offline.
Stuck on a cell? Use the hint system to get a nudge in the right direction without spoiling the fun.
Mark candidate numbers in cells with the pencil mode — just like solving on paper, but smarter.
Track your best times, win streaks, and overall progress as you grow from beginner to expert.
Place digits 1–9 in the empty cells of the 9×9 board.
Each row must contain every digit from 1 to 9 exactly once.
Each column must also contain every digit from 1 to 9 exactly once.
Each of the nine 3×3 boxes must contain every digit from 1 to 9.