InfiChess — Your AI-Powered Chess Companion

Whether you're picking up a pawn for the first time or sharpening grandmaster-level tactics, InfiChess gives you everything you need to play, learn, and master the royal game. Built on the world-class Stockfish engine and designed for players of every level, it turns your phone into a personal chess coach.

PLAY ANYTIME, ANYWHERE
• Challenge our AI from beginner to grandmaster strength
• Play local two-player games on a single device
• Connect a Feimi smart chessboard via Bluetooth for the feel of real pieces

IMPROVE WITH SMART TRAINING
• Solve thousands of curated puzzles tailored to your level
• Take the 3-Minute Puzzle Challenge and beat your best score
• Study openings with a deep, interactive opening tree
• Practice critical endgame positions with guided drills

ANALYZE EVERY GAME
• Powerful Stockfish-powered replay analysis after every match
• Move-by-move evaluation graph showing the turning points
• Discover your best move, your blunder, and the engine's verdict
• Export games to PGN for sharing or external study

A BEAUTIFUL CHESS EXPERIENCE
• Multiple board themes and piece styles
• Smooth, responsive UI optimized for phones and tablets
• Full localization in English and Chinese
• Clean, distraction-free design

MEMBERSHIP TIERS
Unlock advanced features by subscribing to InfiChess Premium:
• Knight — Step up with extra puzzles and deeper analysis
• Bishop — Unlock advanced openings and unlimited replay tools
• Queen — All features unlocked, AI insights without limits

Each tier is offered as a monthly or yearly auto-renewing subscription. Payment is charged to your Google Play account, and your subscription will automatically renew unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time from Google Play → Subscriptions.

PRIVACY & SECURITY
We respect your privacy. All purchases are processed securely by Google Play, and your account data is encrypted in transit. See our Privacy Policy and Terms of Use in the app or on our website for full details.

SUPPORT
We're a small, passionate team that loves chess. If you have suggestions, problems, or just want to say hi, contact us anytime from the app's Settings → Help.

Sharpen your tactics, deepen your strategy, and enjoy the game — all in InfiChess.