Strong free chess program. Features: * Free, but much stronger than most commercial iPhone chess apps! * Plays aggressive and dynamic chess, and is not afraid of sacrificing material for initiative or attacking chances. * Adjustable playing strength. * Choose between several styles of play: "Passive", "Solid", "Active", "Aggressive" or "Suicidal". * Big, deep and varied opening book. Choose between three levels of book variety. * Displ...