Chess Studio Lite vs Airplane Chess

Chess Studio is the first and only application for iPhone and iPad able to completely manage chess database and games in PGN format. Chess Studio is an application designed and built for those players who really want to deepen their knowledge in the field of chess, studying chess regularly and participate in tournaments. Chess Studio allows you to: • Read database and games in PGN format (also with extended notation of moves). • Create, delete and modify folders and databases. • View games with annotations and textual comments and keep track of the displayed games. • Use a double chessboard on the same screen for better game analysis. • Visualize moves and variants in compact mode or indented mode. • Modify existing games with move annotation and textual comments. • Insert new games and positions. • Insert moves with annotations and textual comments. • Insert variation, subvariations etc. • Insert and visualize graphical annotation (colored arrows and highlighted squares). • Share Databases and Games through Airdrop. • Download chess database from internet. • Download chess database from PGN Mentor site. • Import games, database and Opening Books from other applications. • Merge two or more databases. • Copy/Paste games and positions. • Analyze games with Stockfish 19 Engine with the support of the Neural Networks (up to 5 lines of analysis simultaneously) and see the results also through the Engine Evaluation Bar. • See graphic visualization of moves suggested by Stockfish 19 engine. • See Win-Draw-Loss (WDL) probabilities during engine analysis. • Replay games automatically. • Visualize Pawn structure. • Manage Variations and sub-variatons: delete and promote variations. • Read the weekly Magazine The Week In Chess and download the games. • Uploading and Downloading PGN database to/from Dropbox, Google Drive, OneDrive. • Three different modes for moving pieces. • Analyse endgames with Endgame Tablebases. • Analyse and study Chess Openings. • Creation and management of Opening Books in Polyglot format. • Import and management of ChessBase Opening Books (ctg, cto, ctb format). • Automatically classify a database according to ECO code. • Replay, enter and analyze Chess 960 games (Fischer Random Chess). • Play against the engine both in standard mode and in Chess 960 mode. • Solving Puzzles. • Diagram Recognition: this feature allows the user to take and/or upload photos of chess diagrams and convert them into PGN format positions. Other features and technical details: • Modify the board size tapping on the board or through the Settings menu. • Professional chess fonts and figurines for moves notation and annotation. • Preview of the game in the board tapping the Info button. • Advanced search feature. • Visualization of ECO code and Opening during game replay or game insertion. • Visualization of Book Openings during game replay or game insertion. • Complete management of Null Moves with Tutorial. • Portrait/Landscape mode for all devices. • Support of Slide Over and Split View mode. • Function to move up within variants and subvariants. • Online manual frequently updated. • iOS 26 compatible and optimized for all the devices. • Sharing of databases across devices via iCloud Drive. • Sound option. • Support for iPad Pro Keyboard or bluetooth keyboard. • VoiceOver/Accessibility support. • Direct contact via email with the developer. • Languages: English, Italian, Spanish and German. Complete description at the following address: https://chessstudio.wordpress.com/chess-studio/ The application is continuously updated with new features and improvements. Chess Studio Lite is a smaller version of Chess Studio where some features are limited. To view the terms of service visit https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ No registration! No advertising! No sharing of personal data! If you own an iMac or a MacBook try the new Chess Lab!

Airplane Chess is chess for the places a network doesn't reach — a plane, a bus, a tunnel, a car on a long road. Nothing it does needs a server. There are no accounts to make, no ads, no tracking, and no connection to drop halfway through a game. THREE WAYS TO PLAY • Against the computer, at three levels. It thinks at a human pace rather than answering the instant you move. • Pass and play, one phone between two people, the board turning to face whoever is to move. • Two phones side by side, with no network of any kind — over Bluetooth, and between iPhones over Apple's peer-to-peer Wi-Fi as well. Paired players get a lobby: play a game, or just talk. THE WHOLE GAME, PROPERLY Castling, en passant and promotion. Stalemate, insufficient material, threefold repetition and the fifty-move rule — every way a game of chess can end, including the ones most apps quietly skip. Take a move back, resign, or offer a draw. A game you walk away from is still there when you come back, even if the phone restarted in between. Finished games are kept. Step through any of them a move at a time, or send one out as PGN — the format lichess and chess.com both read. IN TEN LANGUAGES Catalan, Dutch, English, French, German, Hungarian, Italian, Polish, Brazilian Portuguese and Spanish, following your phone unless you tell it otherwise. There is a short guide to the app and to the rules of chess in every one of them. NOTHING TO SET UP No sign-in and no account. A one-minute tour of the board the first time you open it, offered rather than forced, and skippable in one tap. Playing a phone nearby asks for Bluetooth the first time and nothing else — never your location.