DeltaChess vs Play Chess & Master Games

Step into the world of DeltaChess — where every move matters. DeltaChess blends elegance, strategy, and intelligence, helping players of all levels learn, practice, and play like a pro. Key Features: • Online Matches – Play live games against real players worldwide. Test your skills in real time and experience true competitive chess. • Engine Analysis (Stockfish 17) – Get instant move evaluations, suggested lines, and live performance graphs in real time. • AI Commentary – Understand why a move was brilliant or a critical blunder with human-like explanations. • Puzzle Trainer – Sharpen your skills with 100,000+ adaptive puzzles. The auto-next feature ensures seamless, focused practice. • Interactive Chessboard – Enjoy buttery-smooth drag & drop or tap-to-move controls, with elegant animations and highlighting. • Opening Explorer – Build your repertoire with the integrated ECO database and discover your next winning weapon. • Branch System – Freely explore alternative lines without affecting your main game. • Editor Mode – Set up any position, explore “what-if” scenarios, and experiment freely. • FEN & PGN Support – Import or export any position or full game effortlessly. • Smart Validation Engine – Ensure every setup and move follows chess rules with accurate move enforcement and realistic gameplay. • Move History & Undo/Redo – Review, replay, and learn from your games, move by move. • Fully Offline Capable – Your training doesn’t stop when your internet does. Perfect for flights, commutes, or dedicated study sessions. • Live analysis – Real-time sync of analysis state with voice chat tied to live analysis rooms. DeltaChess is more than an app — it’s your personal trainer, strategist, and companion, all in one. Download DeltaChess today and elevate your chess game!

Play chess against the custom Pulsar engine with 8 skill levels (approximately 1200–2100). Explore the games of 20 of history's greatest chess masters during their peak years, including over 800 World Championship games. Includes engine analysis, an opening explorer, searchable game lists, and autoplay. No sign-up, no ads, and works offline. The playing program is one i've designed and tested at different levels on internet chess servers in order to come up with the ratings on the board. Users get 12 plays and can view 30 chess games for free. These are separate counters. There is a single one time in-app purchase to unlock both unlimited chess play and viewing. There are about 400 games per player on average with fully searchable lists. Just search world when viewing a player for the world championships. Chess masters included are Carlsen, Anand, Kramnik, Kapsparov, Karpov, Korchnoi, Fischer, Spassky Petrosian, Smyslov, Tal, Keres, Botvinnik, Fine, Alekhine, Capablanca, Lasker, Pillsbury, Steinitz and Morphy. Played games are logged and can also be viewed/analyzed. When reviewing master or player's games, users can override the moves and start making their own moves. The engine analysis has a move now option for users to test their moves against the engine. Back up to main line to undo. After a few moves, the opening name is given. When reviewing there is an opening explorer and engine analysis options on the board. The explorer is built from over 600k high rated, mostly over the board games. The full game's text/moves can be seen and copied to the clipboard to share with others apps when viewing Moves.