Escape Room
Hard · Walls
Karel is locked in a room with walls all around it. Somewhere in those walls there is one gap: the door. Find it, walk out, and put a ball on the square just outside the door.
Your code runs in several worlds, and the door is in a different wall each time (never in a corner). Hint: walk to a wall, then keep your right paw on it until the wall disappears.
Next: House Numbers