The Best I've played chess since 2nd grade so its a passion. I have at least 6 other chess apps on my tablet  and this is the only one I use every day. My only real issue with the app is the strength setting is in terms of percentage and not ELO  ELO numbers  mean a lot to a chess player; and to have the strength of the opponent as a meaningless 5 10  50%- of what? Its well below the standard of this app. The GUI is excellent  and Stockfish is of course one the best Engines. I would prefer Delphi or another engine that better simulates human club players for the 2nd Engine. The Presentation  the smoothness of the movement; good rich intuitive menus. Easily moving from Human v Human to Human v Machine allows me to practice against favored openings and key positions. The computer v Computer play allows me to see a position played out by opponents that are a little better than myself or lightyears better. I said  I love chess  I reach for this app everyday. I really think the devs got this one right: but it could be even better!
September 24 2015