Chess 4.18

As a seasoned reviewer, I find AI Factory's Chess to be a comprehensive application that stands out within the Android chess Software landscape. The app has received multiple accolades, including the Top Developer awards in 2011, 2012, 2013, and 2015, as well as consistent recognition as an Editors' Choice for several years.

The software offers an intuitive interface that facilitates both beginners and advanced players in learning and refining their chess skills. Notably, the latest update introduces support for Chess960, a popular variant that challenges conventional opening theory and adds depth to gameplay.

Implemented features include enhanced instructional tools with safety indicators on moves, an extensive help section on chess fundamentals, and a user-friendly visual aid indicating which player is leading through a smiley icon. The interface displays current opening lines, such as Queen's Gambit, aiding players in contextual understanding.

With twelve difficulty levels designed with adaptive weakening at lower tiers, the app caters effectively to novices through masters. It offers multiple gameplay modes—Casual and Pro—allowing users to learn progressively. The Chess Tutor feature suggests recommended moves and encourages strategic thinking, while the hint function provides complete move suggestions for immediate assistance.

Advanced analysis tools enable users to examine positions in-depth, with an option to observe the CPU's thought process at higher levels. Achievements and leaderboards integrated via Google Play Games foster motivation and competitive play. The application also calculates an ELO-like rating based on CPU match outcomes within Pro Mode.

The review mode allows for retrospective analysis of completed games, and game files can be saved or exported in PGN format for further study or sharing. The interface is optimized for various device sizes, supporting landscape orientation on tablets and most smartphones.

Multiplayer features include hot-seat play between local players and online gameplay against friends via Google Play Games. The app incorporates robust features such as timers, handicaps, diverse board themes, and piece sets—catering to personal preferences.

The engine powering AI Factory's Chess is the Treebeard Chess engine, known for its human-like playing style and used in Microsoft's MSN Chess platform. This contributes to a natural yet challenging opposition for players of all levels.

This free version is supported by third-party advertisements, which may require internet access; users should be aware of potential data charges.

Overall, AI Factory's Chess represents a professional-grade chess application suitable for a wide spectrum of users seeking an engaging and educational experience on Android devices.