1 variant

Question: “Now I’ll draw another thing for you,” Mari-Ann continues, “guess, what this drawing means!” And Mari-Ann is drawing. A square is a prison house. A cross inside the square is a prisoner. Then reads and points with the tip of the pen to every corner of the prison house: “Here is a guard (makes a dot)
Answer: The questioned starts to guess. How can the prisoner get out? On every corner there is a guard. “Digs himself out from under the ground.” “No!” “Flies or jumps over the wall.” “No!” Some questions more about this and that and when the questioned cannot find the answer, the asker says at last, “But very simply. From here
Archive reference: RKM II 350, 347/9 (12)
Location: VJg
Date: 1978
Subject: K-letter