Improve your chess with adaptive tactical training. Solve over 5 million real-game chess puzzles and build pattern recognition skills that help increase your rating. This is not a collection of random puzzles — it’s a structured training system that adapts to your level, from beginner to advanced. Adaptive Chess Tactics Training Train with millions of carefully selected positions covering forks, pins, skewers, checkmates, endgames, and common tactical ideas. Difficulty adjusts automatically as you improve, helping you build calculation depth and board vision step by step. Designed for Steady Progress - Adaptive puzzle difficulty based on performance - Themed training: forks, pins, checkmating patterns & more - Engine-supported analysis for deeper understanding - Track rating growth and accuracy over time - Structured sessions to build consistency Every puzzle is selected with learning in mind — from beginner to tournament-level players. Train from 400 to 3000+ rating strength. Prepare for competition or improve your daily play. Why Players Choose This App - 5M+ curated chess positions - 60+ tactical themes - Adaptive rating-based progression - Performance tracking and training history - Daily practice sessions Build stronger tactical skills. Train consistently. Improve over time. Privacy Policy: https://chess.phd/privacy/ Terms of Use: https://chess.phd/terms/