Izi Sudoku: Logic Puzzle Game

Izi Sudoku is a beautiful, modern Sudoku puzzle game for everyone — from your very first puzzle to expert-level challenges. Train your brain with classic number puzzles anytime, anywhere, online or offline.

DAILY CHALLENGE One puzzle a day, the same for every player in the world. Win it to earn a Bronze, Silver, Gold or Diamond medal — scored on speed, mistakes and hints — and fill your monthly trophy calendar. Missed a day? A streak freeze keeps your run alive.

LEARN THE TECHNIQUES

• Training mode teaches real solving techniques step by step
• Teaching hints explain the logic behind a move instead of just filling a cell
• 42 achievements to unlock, including hidden ones

CLASSIC SUDOKU, 4 DIFFICULTY LEVELS Fill the 9x9 grid so every row, column and 3x3 box contains the digits 1 to 9. Choose Easy, Medium, Hard or Expert — every puzzle has a guaranteed unique solution.

SMART ASSISTANCE

• Hints when you're stuck
• Pencil marks (notes) for candidate numbers
• Unlimited undo and redo
• Optional mistake highlighting and conflict detection
• Second-chance revive on any difficulty

PLAY ANYWHERE, NEVER LOSE PROGRESS

• Fully playable offline — a large library of pre-checked puzzles ships with the app
• Cloud sync across devices with Google or Apple sign-in
• Resume any unfinished game on any device
• Or play as a Guest, no account needed

TRACK YOUR PROGRESS

• Win rate, best times and current streak
• XP, levels and achievements
• Detailed statistics by difficulty

DESIGNED TO RELAX

• Clean, modern interface with light and dark themes
• Distraction-free and comfortable for long sessions
• Available in 10 languages

Izi Sudoku is supported by ads. Prefer to play without them? Upgrade to Pro to remove ads and enjoy uninterrupted puzzling.

Download Izi Sudoku now and start solving!