Rocks'n'Diamonds

I have tried and tried again to get this solved. I think I can get two penguins saved without being crushed, but it's like the others get crushed.
anyone know the steps to get these all saved?

If all else fails: Have a look at the solution tape to see how this level can be solved! (To load the solution tape: Unload the current tape and blindly type ":ist" in the main menu.)