A Queen is captured in the top room of a very high tower, along with her son and daughter. Outside their window, there is a pulley with a rope
1. The stone is sent down in a basket.
3. The daughter goes down, the son goes up.
4. The stone is thrown back down.
5. The queen goes down, the daughter and the stone go up.
6. The stone goes down.
8. The daughter goes down, the son goes up.
9. The stone is thrown back down.
10. The son goes down, the stone goes up.