Chess vs Opening Prep

PROFESSIONAL ANALYSIS BOARD Turn your iPhone or iPad into a complete analysis board. Create, modify and analyze positions with our board editor. Study every game and take your chess to the next level. POSITION SCANNING Scan positions directly from photos or screenshots, in 2D and 3D. The app automatically recognizes the pieces and board layout. Ideal for studying real games or your own moves. POWERFUL ANALYSIS ENGINE Our advanced analysis engine evaluates each position with precision. Suggests the best moves, detects errors and displays strategic alternatives. PRACTICAL OPPORTUNITIES Discover the practical opportunities of each position. Identify tactics, strategic plans and key moves you can apply in your games. ADVANCED FEATURES + Complete opening books to study strategies from the initial phase of the game. + Database with more than 8 million games, updated weekly. + Download and upload .pgn files, share your analyses and save photos. + Share your studies with other players or coaches. PERSONALIZED ORGANIZATION Save all your games and analyses in your personal database. With an intuitive drag-and-drop system, organize your studies. COMPLETE AND FLEXIBLE ANALYSIS With interactive board, position scanning, powerful analysis engine and personalized organization, this app is the ultimate tool for chess analysis and training.

Opening Prep: Chess Trainer is a chess opening trainer for studying and memorizing chess openings from your own PGN repertoire. Import PGN files or paste PGN text, organize your opening repertoire, and train chess lines move by move directly on the board. Opening Prep: Chess Trainer is built for focused opening preparation, repertoire study, and fast memorization of opening variations. Train as White, Black, or both sides, review repertoire trees, continue previous training sessions, and improve difficult positions with targeted repetition. Perfect for tournament preparation, online chess, and daily opening practice. Features • Import chess repertoires from PGN files • Paste PGN text directly into the app • Train chess openings as White, Black, or both • Practice opening lines move by move • Continue previous training sessions anytime • Continue training for a specific repertoire • Study repertoire trees and branching variations • Preview repertoire lines before training • Autoplay repertoire variations on the board • Tap moves in notation to jump to any position • Track mistakes, accuracy, and training streaks • Train difficult positions and weak opening lines • Quick actions for new sessions and hardest positions • Optional move sounds and haptic feedback • Works fully offline with local storage • No account required Opening Prep: Chess Trainer is a lightweight PGN repertoire trainer designed for serious chess opening preparation without unnecessary complexity.