Chess Opening Tactics Trainer vs Book2Board

A chess opening trainer that helps you learn your openings and remember them. Build a repertoire, train it with spaced-repetition reviews, and sharpen it with 80,000+ puzzles taken from real games - with a strong chess engine built in. Whether you open 1.e4, 1.d4 or something less common, there is a line to learn and a puzzle from your opening waiting for you. YOUR REPERTOIRE, REMEMBERED Add the lines you play as White and Black, learn them move by move, then recall them from memory. Reviews come back just before you would forget, so your lines stay sharp without hours of study. Each move comes with the idea behind it. A PLAN FOR EVERY DAY Three short steps a day — review your lines, meet a new opening, solve puzzles — in about 10–15 minutes. Keep your streak and level up as you go. 80,000+ OPENING PUZZLES Positions from real games and classic opening traps, sorted by opening: Sicilian, Queen's Gambit, Italian Game, French, Caro-Kann, Ruy Lopez, London System, King's Indian, Slav, Nimzo-Indian, English, Scotch, Vienna, King's Gambit and many more. Puzzles adapt to your rating, from beginner to 2200+. OPENING EXPLORER Browse 12,000+ named openings and variations. See the main replies, how often each move is played, and add any line to your repertoire with one tap. SCOUT YOUR OPPONENT Preparing for a tournament game? Import an opponent's games from Lichess or Chess.com, see the openings they play and where they go wrong, and drill a plan against them. PLAY THE ENGINE Play Altair, our own neural-network chess engine, on 8 levels from about 800 to 2350 Elo, with or without a clock, plus Chess960. Test your repertoire in a real game, then review it move by move. ANALYSIS Analyse any position or game with the built-in engine: best lines, evaluation and the move you should have played. PUZZLE SMASH Solve as many puzzles as you can in 3 or 5 minutes, or survive with 3 lives. HINTS THAT TEACH Stuck? A hint points you in the right direction without giving the move away. WORKS OFFLINE Puzzles, your repertoire and the engine run on your phone - train on a train, on a plane, anywhere. MAKE IT YOURS Board themes, piece sets and app themes, light or dark. TRACK YOUR PROGRESS Rating, accuracy by opening, solved puzzles and your weakest lines - see what to train next. Available in English and Polish. Free to use with ads; some features have a daily limit. Premium removes the ads and the limits. Privacy Policy: https://dawikk-apps.vercel.app/ChessOpenings/privacyPolicy.html Terms of Use: https://dawikk-apps.vercel.app/ChessOpenings/termsOfUse.html

Give your chess books a board. Book2Board brings your own PDF chess books, an interactive board and Stockfish analysis into one place. Follow a line, try another move and return to the page with your ideas intact. FROM THE PAGE TO THE BOARD In PDFs with selectable text, detect supported chess notation, review the resulting line or position, then load it onto the board. Scanned pages and diagrams can still be studied by setting up the position manually. EXPLORE YOUR OWN IDEAS Play moves, branch into variations and revisit earlier positions. Your saved study retains its move tree, selected move and board perspective. Export your moves as PGN to continue working in other chess tools. CHECK WITH STOCKFISH Analyze positions locally with Stockfish 17. Compare candidate lines and choose your analysis settings. The engine works offline; downloading your PDFs may require a connection. A WORKSPACE THAT FITS Read beside the board in a wide workspace, or switch between book and board on a compact screen. Resume your reading position and zoom. Set up positions with the editor or FEN, and choose board themes and notation styles. YOUR BOOKS, YOUR STUDY Import PDFs from Files. Book2Board does not include a book catalogue. Notation detection requires selectable text; it does not scan diagrams or convert entire books automatically. Optional PDF sync through iCloud requires signing in to iCloud. One-time purchase. No subscription. Available in 11 interface languages. Support: hello@book2board.app