Each puzzle is a bit like a maze.
To plan your route to the destination,
you will need to see all the places that you might get to.
By this I mean, not "all the configurations of the whole puzzle",
which is very difficult to attain;
but "all the things which can appear in each separate frame".
To do this,
- go to the starting position and choose one frame
- click on its button
- click on the button of the new thing that appears
- click on the button of the new thing that appears
- etc.
- eventually you will find that you are going round in a loop. Then
- go to the starting position and choose another frame
- repeat for the third frame
- repeat for the fourth frame, if there is one
You have now seen all the things that can possibly appear in any frame.
Back to the main Frame Puzzle page.
If that was not enough to help you, here is another hint.