ChessLab Puzzle vs ChessLab

Sharpen your chess skills anytime, anywhere with a powerful offline chess puzzle experience designed for real improvement. Our app gives you access to over 90 million chess puzzles, all fully available without an internet connection. Whether you’re commuting, traveling, or playing offline on purpose, you can always train your tactics and calculation skills. Each puzzle comes with its own difficulty and rating, and the app features a dynamic scoring system that tracks your progress as you solve puzzles. As you improve, your rating grows, giving you a clear sense of development over time. Don’t like a puzzle? No problem — with such a massive puzzle database, you’re free to skip any puzzle and move on instantly to the next challenge. To help you learn effectively, the app offers smart assistance tools. Hint shows the correct move directly when you need guidance, while Peek highlights only the piece that should be moved, letting you think through the solution yourself. You can also customize your experience visually by choosing between two different board themes: a classic green board or a warm brown board. Everything is designed to keep your focus on improving your chess — distraction-free, fast, and fully offline. Free usage is limited to a maximum of 5 puzzles every 10 minutes. You may wait for the limit to reset or subscribe to unlock unlimited access. Privacy Policy https://drive.google.com/file/d/1LfI4SudTysA075tw6YQM0qnVvhHyCjHd/view?usp=sharing Terms & Conditions https://drive.google.com/file/d/1C6RdLDhhnoNGpaVXjf4nVPeCZHG1shrI/view?usp=sharing

ChessLab is a complete chess companion for iPhone and iPad: play, analyse, train and experiment, with Stockfish built in, without ever leaving the app. OPPONENTS THAT PLAY LIKE HUMANS Nine characters played by Maia-3, a network trained on millions of human games: it does not look for the best move, it plays the one a human of that level would play, blunders included. Each has a style, a repertoire and a temperament, and a level set on the human scale. Or take on Stockfish, from beginner (~900 Elo) to maximum (~3190). Optional clock, hints, a warning before risky moves and an evaluation bar, all on demand. ANALYSE AND UNDERSTAND Every move is graded (inaccuracy, mistake, blunder, brilliant…), each player gets an accuracy score, and the app tells you why a move was bad. The Coach adds the share of players at your level who play it. At the end, it offers to turn your mistakes and missed mates into puzzles. Load a game by PGN, FEN, position editor or photo scanner. DAILY SESSION Every day, what to review: opening positions that are due, missed puzzles, an endgame. A streak of days and medals to keep you going. OPENINGS 58 hand-written openings (bilingual), checked against the engine: every move is explained, coloured arrows tie the board to the move list, and spaced repetition makes them stick. Import your own repertoires as PGN too. ENDGAMES 78 courses proven by endgame tablebases: no move taught gives up a win, no defence offered loses a draw. Plus free training, where any move that keeps the verdict is accepted. PUZZLES Over 100,000 problems from the Lichess database, filtered by level and theme, plus your own, drawn from your mistakes. Personal rating and “At my level”. VARIANTS AND MORE Chess960 and eleven variants against the computer (King of the Hill, Three-Check, Horde, Atomic, Crazyhouse, Duck Chess, Barricades…), each with its own analysis. Two-player mode, and a Laboratory to compare two Stockfish settings. IPHONE AND IPAD A large board with side-by-side panels on iPad, keyboard and trackpad, portrait and landscape. Fully bilingual, French and English. Optional iCloud sync, off by default. PRIVACY Offline by default: no ChessLab server, no analytics, no ads. Your games stay on your device. ChessLab embeds the Stockfish engine (GPLv3 license), the University of Toronto's Maia-3 network (AGPLv3 license) and free vector piece sets — cburnett (GPLv2+/CC BY-SA), chessnut (Apache 2.0) and merida (GPLv2+). Full source code and license notices are available from within the app (Settings → Licenses).