Chess Online & Offline is a modern chess mobile app designed for players who love strategy, depth, and the timeless appeal of the 64-square battlefield. With a friendly, approachable design, this all-in-one chess solution blends a serene classical music backdrop with the thrill of discovering the game’s endless nuances. The app shines as both a social platform for serious competition and a quiet practice space for focused study. You can challenge players from around the world to earn rating points in online matches, or enjoy offline practice against a computer at your preferred difficulty level without affecting your rating. Born from a long-standing fascination with chess, the app nods to the game’s rich history and global footprint. Throughout centuries, chess has united players across languages and cultures—whether it’s called Chess, Shatranj, Échecs, Xadrez, or Szachy, the genius of the game remains universal. Today, Chess Online & Offline brings that global spirit to your mobile device, with features that appeal to beginners and grandmasters alike. Expect an intuitive interface, a library of openings and puzzles, and a learning curve that helps you grow at your own pace. This is more than a game; it’s a gateway to constant improvement, a place to test ideas in real time, and a way to connect with fellow chess enthusiasts from dozens of countries. For players who crave variety, the app supports a wide range of styles and experiences: a robust online ladder with global rankings, an offline mode to sharpen calculation, and a puzzle catalog that trains tactical vision. You’ll find a thoughtful balance between exploration and mastery—perfect for chess learners, casual players, and serious competitors who want to study openings, practice endgames, or simply enjoy a satisfying, distraction-free game. The emphasis on smooth performance, reliable cloud-backed play, and a visually pleasing design makes Chess Online & Offline a compelling choice for anyone seeking a high-quality chess app on mobile.

• Playing chess online with players from all over the world
• Playing chess offline against the computer - you can choose the difficulty level from beginner to expert
• Playing chess with your friends - you can invite your friends to play and accept invitations from others
• Sound effects during the game to enhance the experience
• Advanced haptics - various vibration effects make the game even more engaging
• Choice of 21 chessboard styles and 16 sets of chess pieces
• Helpful markers showing legal moves, last move, possible captures, king in check and more
• Ability to use the pending move (also called premove) to avoid wasting time in games - when the opponent's move comes, your move will be made automatically
• Ability to browse game history during the game
• Over 3000 game openings with variations - the app recognizes them and displays information, e.g. Sicilian Defense, Queen's Gambit, Caro-Kann Defense, Italian Game and French Defense
• Most beautiful pieces of classical music while using the app
• Puzzles - solving chess puzzles helps develop your skills. It takes little time and you get points for guessing the best moves! 500,000+ tactics puzzles to solve - mate in 1, mate in 2, mate in 3, perpetual check, endgames, pin, fork, skewer, sacrifice, etc. - if you solve them quickly you will get a speed bonus!
• Rankings - our global ranking and country rankings of all registered players! The order in the player rankings is determined by ELO rating, number of online games won, and points earned while solving puzzles. At any time you can check your exact position in the ranking in your country and worldwide!

• Time-limited online games in the following modes: Classic (10, 20 and 30 minutes), Blitz (3, 5 and 3 minutes + 2s/move), Bullet (1 minute, 1 minute + 1s/move and 2 minutes + 1s/move)
• In the online game you will meet players of all levels, from beginner to grandmaster
• Strong computer for offline play with 16 strength levels (from 600 to 2100 ELO rating)
• Rankings, players and computer strength in game are calculated using the Arpad Elo formula - well known as the ELO chess rating
• Access to game statistics, editing user data including profile picture
• Ultra-fast, efficient and reliable Firebase Firestore database which is part of the Google infrastructure - all to ensure the convenience and comfort of games for thousands of players simultaneously
• Light and dark theme support
• Material Design 3 interface
• Checkmate Chess is free to download and use
• Respecting your privacy and the security of your data