#run forward until there is an empty space to the right
#hope you can find out what to do then
while look_right() != '':
forward()
This field looks pretty easy, doesn't it? But click the "Run" button...
We shall see - anti-tank obstacles called Czech Hedgehogs appear in the passages.
Only one remains free. As hedgehogs are easily movable, their placement changes
each time we restart the game!