This is the full source for a published iPhone sliding puzzle game with a 4×5 (20 tile) board.
The game can be easily customised by simply replacing the supplied reference images.
Game is implemented in native objective c code with use of the OpenGLES and OpenAL frameworks for high performance graphics and sound. (Although potentially excessive in this context the sprite and multichannel audio can potentially be used to create other types of games with excellent framerates and advanced audio)
Please refer to the included Readme.txt for more detail on the code structure and tips for customisation.
Thank you for purchasing, all feedback welcomed.