LibreSudoku

Rediscover the timeless pleasure of Sudoku with a clean, modern, and completely distraction-free experience. No popups. No banners crowding your grid. No forced subscriptions. Just pure logic, elegant design, and smooth gameplay crafted to help you relax, sharpen your mind, and play at your own pace. Whether you are a beginner looking to learn the basics or an expert solver hunting for a serious challenge, this is the ultimate everyday Sudoku companion. WHY YOU WILL LOVE THIS SUDOKU PURE, UNINTERRUPTED GAMEPLAY No video interruptions breaking your concentration, no cluttered interface, and no hidden paywalls. Enjoy smooth, focused puzzle-solving from start to finish. SMART PENCIL NOTES WITH AUTO-ERASE Take candidate notes directly in cells with a single tap. When you place a correct number, conflicting pencil notes across the row, column, and 3x3 box are automatically cleared for you. DUAL INPUT MODES & FAST FILL Play your way: - Cell-First Mode: Tap a cell, then select your digit. - Fast Fill (Digit-First Mode): Lock in a digit and quickly tap empty cells across the board to place numbers in rapid succession. DYNAMIC KEYPAD WITH REMAINING COUNTS The smart number pad tracks remaining placements for every digit (1 to 9). When all 9 instances of a number are placed, the button smoothly fades away so you can focus entirely on the remaining numbers. 4 BALANCED DIFFICULTY TIERS - Easy: Perfect for warming up, casual breaks, and beginners. - Medium: Engages hidden singles and basic elimination strategies. - Hard: Tests box-line reduction, pointing pairs, and triples. - Expert: Intricate logic designed for seasoned master solvers. Every single puzzle is mathematically verified to guarantee exactly ONE unique solution. SATISFYING TACTILE FEEDBACK - Crosshair highlighting illuminates the active row, column, and 3x3 block. - Instant same-number matching across the entire board. - Rewarding sweep animations and subtle haptic feedback when completing rows, columns, and 3x3 boxes. - Celebratory confetti when you conquer the puzzle. IN-DEPTH STATS & PERSONAL BESTS Track your progress across every difficulty tier. Review games played, games won, win percentages, and your best completion times. SMART PAUSE & INSTANT AUTO-SAVE Need to step away? Pausing automatically shields the board to keep your solve time honest. Your board state, pencil marks, and timer are automatically saved, so you can pick up right where you left off. 100% OFFLINE CAPABLE No Wi-Fi or cellular data required. Play on airplanes, subways, or wherever your day takes you. FEATURES AT A GLANCE - Classic 9x9 Sudoku grid - Unlimited Undo & Redo with full move history - Smart Hint tool for when you get stuck - Erase tool to clear entries and pencil marks - Real-time conflict and duplicate error highlighting - Fast, responsive, and minimalist interface - Privacy-first: no tracking, no account required, and no personal data collection Download today and experience Sudoku as it was meant to be played!