Pin Rescue Pull Puzzle

Pull the wrong pin and the lava goes somewhere you did not want it. Pull them in the right order and everybody gets out. Every board is a small physics problem with one safe answer and two or three that look safe until the lava moves. You can undo, so trying an idea costs you nothing. - Boards built by hand, all of them solvable - Undo any pull - Plays with no connection - No account, no sign-up