The ultimate chess for beginners AND advanced players! Chess Fortress uses one of the most promising new chess engines (Cheng3 - around 2300 ELO on an iDevice). You may adjust the difficulty according to Your skill (100 adjustable skill levels starting from a total novice up to a skilled club player). The app offers a backwards/forwards control buttons, which allows You to return to any point of game and try a different approach, or just to undo a last move. The "ponder" function lets the engine AI think while You are making Your move (just like a human does). For easy learning the main screen features a hint button (with the key icon). Save Your game anytime for a later analysis! You may easily set up Your own chess board configuration. Game mode for two human players also available.Features one of the biggest board for a better orientation (no unnecessary menus).In Analysis mode You may have any current position analyzed by the chess engine.Enjoy the game of kings - enter our Chess Fortress! The authors wish You lots of fun! :)Also, check out our Tactical Soccer app, it uses the same routines in a more simple, yet highly mind-challenging game concept!