Sudoku: Classic Number Puzzle

🎯 Sudoku – a fresh puzzle every time, and a clearer mind Sudoku is the classic logic puzzle: fill every row, column and 3×3 box with the digits 1 to 9, each exactly once. No account, no sign-in, no internet required. Open the app and start solving. ✨ Features • 4 difficulty levels Easy, Medium, Hard and Expert – from first-timers to seasoned solvers. • Unlimited puzzles Puzzles are generated on the fly and always have exactly one solution. You'll never see the same one twice. • Notes (pencil marks) Jot down candidates in any cell. When you place a correct number, related notes are cleaned up automatically. • Hints Stuck? A hint fills in one cell. 3 free hints per puzzle, watch a short ad for more. • Mistake check Wrong numbers turn red instantly. 3 mistakes end the game – or watch an ad to keep going. • Smart highlighting The selected row, column, box and matching numbers are highlighted. Completed digits disappear from the number pad. • Undo, erase and pause Take back a move, or step away – your timer waits for you. • Auto save & statistics Close the app any time; your puzzle is right where you left it. Track games played, solved and best times per difficulty. 🧠 Great for • A focused brain workout on your commute or while waiting • Fans of logic puzzles, number games and brain training • Playing offline – no Wi-Fi needed (banner only; interstitial ads only between puzzles) 🎨 Clean design Easy-on-the-eyes colors with dark mode support. Portrait layout, perfect for one-handed play. Available in English, Korean, Japanese and Simplified Chinese. 🔒 Privacy friendly Your game data stays on your device and is never uploaded. Lightweight, fast, no unnecessary permissions. --- This app contains ads.

First release on Google Play.