Capture the Queen
In this position both the Black King and Queen are vulnerable. So, this position offers 3 ways to get the Black Queen by changing move #4. Each puzzle gets progressively shorter.
Version 1
Version 2
Version 3
In this puzzle, best moves lead to both Queens coming off the board. As Black is careful not to allow that to happen, a couple of moves by Black are suboptimal but gets the job done.