A free program for iPhone, by CHESSQUEEN INC.
Chess King - Learn to Play is an interactive game which includes theoretical lessons. It is a perfect learning tool for beginners. You can play the game and learn at the same time. The game will test your knowledge and help you improve your skills by giving you a hint or an explanation when you make a mistake.
The interactive lessons in Chess King - Learn to Play are presented in an interesting and easy-to-understand format. You will be able to learn how to play chess, improve your tactics, and reinforce your knowledge through practice. Each course includes a free part, in which you can test the program and exercises.