Retractor Problems

"Retractors" are problems where you first have to take one move (or two moves, three moves...) back, then to start playing from the position reached this way.
Passing is not allowed as long as it is not explicit mentioned, and since all relevant parts of the boards are shown in the diagrams, tenuki is never part of the solution.

• Retrograde Analysis Problem 7
• Retrograde Analysis Problem 9