  Motivated by the challenge of achieving rapid learning in physical
environments, this paper presents the development and training of a robotic
system designed to navigate and solve a labyrinth game using model-based
reinforcement learning techniques. The method involves extracting
low-dimensional observations from camera images, along with a cropped and
rectified image patch centered on the current position within the labyrinth,
providing valuable information about the labyrinth layout. The learning of a
control policy is performed purely on the physical system using model-based
reinforcement learning, where the progress along the labyrinth's path serves as
a reward signal. Additionally, we exploit the system's inherent symmetries to
augment the training data. Consequently, our approach learns to successfully
solve a popular real-world labyrinth game in record time, with only 5 hours of
real-world training data.
