what is the above part with the one ladder for? it's not needed
A number of things are not needed due to a problem not spotted during playtesting, but I'll let people play the original as submitted before attempting a fix.
It's much harder now that you can't collect a block from above you
I wonder now, would you ever need to undo?
nevermind, I realised that even in the original, there are situations in which you would need to undo
(Now fixed.)
