Mobialia Chess (Ads)

Mobialia Chess (Ads) is the full-featured free version of Mobialia Chess, the most complete chess app for Android devices. It offers a wide array of functionalities including playing against AI with selectable ELO difficulty levels ranging from 500 to 2100, and adjustable time controls. The app includes an extensive opening book with over 30,000 positions, undo/redo capabilities, PGN export, and a graphical board editor.

Beyond offline play, users can engage in online matches on major chess servers like freechess.org (FICS) and chessclub.com (ICC), with support for guest or registered modes, game seeking, chatting, premoves, and even wild chess variants such as Atomic, Losers, Suicide, and Chess960. The app also offers over 2900 chess problems categorized by difficulty, a robust chess database of over 3.1 million games updated weekly for thorough game and position analysis, and a simple PGN browser.

The interface is user-friendly with 2D/3D board views, multiple piece and board styles, move highlights, sound and vibration feedback, and both portrait and landscape modes. Additional features include speaking moves and game results, material advantage indicators, and options to keep the screen active during play. This version includes advertisements but delivers a comprehensive chess experience for all levels.