Chess Coach is your personal Artificial Intelligence (AI) chess coach. Play chess against Stockfish offline, compete online on Lichess, solve puzzles, study chess openings, and get move-by-move coaching powered by Gemini, GPT, Claude, and DeepSeek. Whether you're a beginner or a club player, Chess Coach adapts to your level and helps you learn and improve at chess faster. ♟ PLAY CHESS VS STOCKFISH — OFFLINE, ANYTIME Challenge Stockfish 18 with adjustable ELO from 1320 to 3190. Pick your color, set the difficulty, and play chess at your own pace — no internet required. Choose Bullet, Blitz, Rapid, or Classical time controls, or play untimed. Start from any FEN position to practice chess openings or endgames. ♟ PLAY CHESS ONLINE — LICHESS INTEGRATION Connect your Lichess account and play chess online against real opponents worldwide. Create rated or casual games with full time controls. Challenge Lichess AI bots at 8 difficulty levels. Your chess rating syncs automatically. ♟ AI CHESS COACH — LEARN FROM EVERY MOVE Start with 5 free AI analyses — no payment needed. After each move, your AI chess coach analyzes the position and explains in plain language what happened — why a move was strong, where you went wrong, and what to play instead. Powered by Gemini, GPT, Claude, and DeepSeek. Every chess analysis adapts to your ELO level: — Beginner (800–1200): Simple concepts and basic tactics — Intermediate (1200–1800): Strategic ideas and positional play — Advanced (1800+): Deep analysis and theoretical understanding Coaching follows Capablanca's principles: development, king safety, material balance, piece activity, pawn structure, and center control. ♟ AI COACH DURING PLAY Enable Coach Mode against Stockfish for real-time AI chess coaching. Every move classified as Best, Good, Inaccuracy, Mistake, or Blunder — with explanations. Request hints without spoiling the answer. ♟ CHESS PUZZLES — STREAK, STORM & 30+ THEMES Train your tactical vision with a complete chess puzzle system: • Healthy Mix — Random puzzles at your level • Puzzle Streak — How many can you solve without missing? • Puzzle Storm — Race against the clock for 3 minutes • 30+ Tactical Themes — Fork, Pin, Skewer, Discovered Attack, Sacrifice, Back Rank Mate, and more • Endgame Puzzles — Pawn, Rook, Bishop, Knight, and Queen endgames • ELO Rating System — Track your puzzle improvement ♟ CHESS OPENING TRAINER — BUILD YOUR REPERTOIRE Build your chess opening repertoire with hundreds of openings organized by ECO code. Three interactive training phases: Learn with guided arrows, Practice until you play twice without errors, and Master through timed quizzes. Your AI coach explains every move's strategic purpose. Explore any opening with the Lichess database — millions of master games with win rates and popular moves. ♟ REVIEW YOUR CHESS GAMES WITH AI Import any chess game via PGN (paste, file, or share) and let your AI coach review it move by move. See move classifications, evaluation charts, centipawn analysis, and natural language explanations of your mistakes. ♟ FREE ANALYSIS BOARD Set up any chess position and analyze with Stockfish in real time. Explore variations and get instant evaluation with best move suggestions. ♟ CHAT WITH YOUR AI CHESS COACH Ask your AI coach anything — openings, strategy, game analysis, or improvement advice. Multi-turn conversations like having a Grandmaster mentor in your pocket. ♟ DESIGNED FOR EVERY PLAYER • Material Design 3 with dynamic colors • Phones and tablets with landscape support • Multiple board themes and dark mode • English and Spanish ♟ FLEXIBLE & FAIR — NO SUBSCRIPTIONS • 5 free AI analyses to try the coach • Credit packs for occasional players — buy only what you need • Premium BYOK for unlimited chess coaching with your own AI key No tracking, no ads. Your data stays on your device. Download Chess Coach and start improving your chess today.