Knightfall:Chess with AI Coach

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Content rating
Everyone
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Content rating
Everyone
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About this game

Knightfall is a beautiful, feature-rich chess app that combines world-class engine play with on-device AI coaching — all in a sleek dark theme built for modern Android.

♞ PLAY THE AI
Challenge Stockfish 18 — the strongest chess engine on the planet — at six difficulty levels from casual beginner (~700 Elo) all the way up to Master (~3000 Elo). Whether you're learning your first opening or sharpening your endgame technique, there's a level that challenges you just enough.

🧠 MEET YOUR COACH
Download the optional on-device Gemma 4 AI coach (2.5 GB, one-time download, runs completely offline after that). Coach Gemma watches every game in real time and offers natural-language commentary after each move — no cloud required, no subscription, no data leaving your device. Ask her anything: "Why did I lose that pawn?" or "What's my best plan here?"

🌐 PLAY ONLINE & ON THE WEB
— Cross-Platform Play: Open chartmann1590.github.io/knightfall in any desktop or mobile browser to play online games, sync your stats, and access your profile from anywhere.
— Quick Match: instantly pair with a random opponent and play for your Elo rating.
— Play a Friend: generate a 6-character invite code and share it anywhere. Your friend enters the code and the game begins — no account linking needed.
— All online games are rated. Your Elo updates live after each game.

🏆 LEADERBOARD & PROFILES
Opt in to a public profile and compete on the global leaderboard. See your stats, win/loss/draw record, and game history any time. The live leaderboard and profile stats are also accessible directly on the Knightfall website.

🔒 PRIVACY FIRST
Play as a guest (no account required) or sign in with email. Every data-sharing feature — Crashlytics, Analytics, Performance Monitoring, push notifications — is individually opt-out in Settings. No personal data is shared by default until you explicitly choose to.

✨ BEAUTIFUL & POLISHED
— Material 3 dark chess theme
— Smooth animated piece movement
— Tap-to-move or drag-and-drop
— Legal move dots, last-move highlight, check glow
— Three board color themes
— Move sounds and haptic feedback
— Works offline (AI mode requires no internet)

Knightfall is free. No ads. No pay-to-win. Just chess.
Updated on
Jun 11, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App info and performance, and Device or other IDs
This app may collect these data types
Personal info
Data isn’t encrypted
You can request that data be deleted

What’s new

Initial Release