Daily Sudoku

Daily Sudoku — the classic number puzzle, reimagined for everyday brain training. 🧠 Whether you're a total beginner or a seasoned solver, Daily Sudoku has something for you: five difficulty levels, five exciting variant modes, and a fresh Daily Challenge every single day. Best of all, it's free and fully playable offline. 🧩 CLASSIC SUDOKU — 5 DIFFICULTY LEVELS From relaxing, easy grids to truly fiendish, expert puzzles. Thousands of handcrafted boards, each with a guaranteed unique solution. 🎯 DAILY CHALLENGE & STREAKS A new puzzle every day. Build your streak, stay consistent, and keep your mind sharp. 🔥 FIVE VARIANT MODES Go beyond the classic grid: • Diagonal — both main diagonals must also hold 1–9 • Killer — solve through cage sums • Thermo — numbers rise along each thermometer • Arrow — cells on an arrow add up to its circle • Time Attack — race against the clock 🛠️ SMART, STRESS-FREE TOOLS • Number & cell highlighting • Pencil notes for candidates • Hints when you're stuck • Mistake check & unlimited undo 🎓 LEARN 11 PRO TECHNIQUES Clear, visual lessons teach real solving methods — from naked singles and hidden pairs to advanced patterns. The app even detects your weak spots and offers a quick lesson. 📊 STATS & ACHIEVEMENTS Track best times, completion rates, and streaks. Unlock achievements as you improve. 🎨 MADE FOR COMFORT • 10 beautiful color themes • Easy-on-the-eyes dark mode • Adjustable font size & haptic feedback • Clean one-handed portrait layout 🌍 PLAY ANYWHERE Fully offline. Available in English, 한국어, 日本語, Español, 简体中文 and 繁體中文. Download Daily Sudoku and train your brain — one puzzle at a time!