Sudoku - Train Your Mind

Train your mind and relax with the ultimate classic Sudoku experience! Whether you want to unwind after a long day or keep your brain sharp and active, Sudoku offers a clean, modern, and beautifully crafted logic puzzle journey for players of all skill levels. Small puzzles, big progress! Play a wide variety of generated Sudoku puzzles, each with a single solution, and build a daily solving habit. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✨ KEY FEATURES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🧩 FOUR DIFFICULTY TIERS • Choose Easy, Medium, Hard, or Expert for a new puzzle. • Journey progresses through Easy (levels 1–10), Medium (11–30), Hard (31–60), and Expert (61+). 📅 DAILY CHALLENGES & STREAKS • Play a fixed offline challenge for each UTC date. • Keep your daily streak alive with consecutive completions. • Stay motivated with daily brain-training habits. ✏️ SMART HELPER TOOLS • Notes Mode (Pencil Marks): Jot down candidate numbers just like on paper. • Helpful Hints: Reveal a correct number in an unfinished cell. • Undo & Redo: Test new paths freely and backtrack mistakes without frustration. • Clear Tool: Quickly erase entries with a single tap. • Duplicate Highlighting: Easily spot identical numbers in rows, columns, and 3x3 blocks. 📊 PROGRESS & DETAILED STATS • Follow your Journey progress and unlock cosmetic milestone badges. • Review completed games, average and best times, mistake-free rate, and hint use. • See recent activity and breakdowns by difficulty and game mode. • Keep personal records and statistics on this device. They are not synced or compared with other players; detailed aggregate statistics start from the version that introduced them. 🎨 CLEAN & ELEGANT DESIGN • Designed with a modern, distraction-free aesthetic. • Smooth, responsive controls and intuitive number pad. • Eye-friendly layout crafted for extended, comfortable play sessions. ✈️ 100% OFFLINE PLAY • Play every mode without an account, server connection, or active internet. • Daily puzzles use the UTC date on your device and are intended for casual play. • Personal records and progress stay on this device and are removed if its app data is cleared or the app is uninstalled. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🧠 HOW TO PLAY SUDOKU ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ The objective is simple yet deeply rewarding: Fill the 9×9 grid so that every row, every column, and each of the nine 3×3 blocks contains all numbers from 1 to 9 without repeating any digits. Whether you are learning the rules or looking for a focused logic break, Sudoku offers a calm way to practice at your own pace. Difficulty labels describe the current game settings; advanced levels have not yet been calibrated against a technique-based solver or player study. Download now, sharpen your logic, and enjoy classic Sudoku every day!