"Slippery labyrinth" abbreviated to hell and back. Maze game with classical path finding AI.
NOTE: The blank looking ball mark where the player (blue ball) has been to.
Let's roll the ball into the marked field of the labyrinth shown on the 21st slide! The ball can move in any of the four cardinal directions. Once it starts moving in a direction, it will roll until it hits a wall or the edge of the track.