Came here to upvote RoboZZle for the extra depth! I once wrote a solver for RoboZZle: https://github.com/tasuk/zlej-rob https://github.com/tasuk/zlej-rob And

Came here to upvote RoboZZle for the extra depth! I once wrote a solver for RoboZZle: https://github.com/tasuk/zlej-rob https://github.com/tasuk/zlej-rob And a blog post: http://blog.tasuki.org/explorations-in-ai-solving-robozzle/ http://blog.tasuki.org/explorations-in-ai-solving-robozzle/