Play chess against an engine or use the program as a PGN editor/-viewer.Engine Play: This program is using a chess engine as a service. Please download an engine from the Android Market for playing against an engine. The following engines are supported:* Stockfish Engine* Chess Engines"Chess for All" features:* play against an engine* support of two chess engines* automatic engine play* analyze mode* show engine thinking* polyglot opening book* two player mode* load/save/edit games* delete PGN-files* edit PGN tags* own PGN database with search for player, event and opening* PGN download (web)* clipboard: copy/paste* PGN-Viewer* graphical setup board* four different chess board and pieces* time control(game clock, move time, sand glass)* one touch moves* undo moves* full Chess960 support* sound effects* option to keep the screen on while playing* enable/disable status bar* user manual (web)* free, GPLv3Please contact the developer if you have questions or issues, before rating the app low. With an e-mail you can reach the developers directly: select "Menu", "About" and "Contact".