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Train your chess memory and board vision offline. • Play blindfold chess against the engine at four levels. • Learn and rehearse 60 essential opening lines. • Study, hide and reconstruct positions. • Choose visible pieces, circles or fully blindfold play. English and Spanish interface, locally saved progress and drag controls.
Play blindfold, rehearse openings and rebuild chess positions. Works offline.
Train your board vision with three ways to practise chess. Created by Ajedrez de Silicio for beginners and enthusiasts who already know the rules. BLINDFOLD CHESS Play Stockfish 19 Smallnet at four levels. Choose your side and drag to move. Train with visible pieces, circles as a guide or hidden pieces. Review the last move, the move list and your saved games. REMEMBER OPENINGS Watch a line, understand its idea and rehearse both sides. Includes 60 essential lines and a catalogue of 3,815 opening lines and variations with ECO codes. Use pieces, circles or blindfold mode. Green marks show completion without errors or hints; yellow encourages another attempt. INVISIBLE BOARD Study a meaningful opening position, hide the pieces and drag them back to rebuild the board. Check the result and try again. EVERYTHING ON YOUR DEVICE The engine, openings and exercises are included. Train offline, with no account and no ads. One purchase, no subscriptions or in-app purchases. Progress stays on your device; export a backup to move to another device or a PGN to keep your games. SPANISH AND ENGLISH For phones and tablets, in portrait and landscape. Adjust sound, coordinates, orientation and reduced motion. Designed for children who already play chess, teenagers and adults. It does not teach the rules from scratch. Android 8.0 or later and WebView 109 or later. Availability depends on your device. Opening data from lichess-org/chess-openings under CC0. Stockfish is under GPLv3 or later, with licence and complete corresponding source included. The explanations for the 60 lines were written with AI assistance; no online AI is used during training.