Since there have been no replies in a while, and SLX Editor now has horizontal-only and vertical-only piece movement (via hotkey + drag action), this one can be marked as resolved.

Cheers! That was a tricky one, @Crane! As with all your levels, it really gets the old grey matter working Neat design again!

I have a solution for Outside the Box Part 2 as well.

Acceptable solution - well done!

OK, Tower solved!

@Armani   You solutions are all intended/acceptable alternatives, great job! 

Yeah, I spent quite a bit of time planning out my R2 level so no backroutes open up and create everything in a clean way.

Yes, that's what I meant - cheers! I'll move onto Tower Block next I think, and circle back to Box Part 2; that's clearly not going to be anything like a quick solve.

Sure - will send you by PM, and yes, Part Two is meant to be harder!

Cheers! Outside the Box Part 2 has me completely stumped for the moment though! Obviously you're a builder down from Part 1, but I can't figure out how to use the extra basher to my advantage. If the idea was to make Part 2 harder than Part 1, I think you've succeeded!

RE: The Sphinx, would you be kind enough to provide a replay of your intended solution? It'd be good to know if I got vaguely close to what you intended.

Outside the box is close enough - well done.

I was afraid you'd find something like that for The Sphinx' Riddle - there is another backroute I know of that uses a Basher/Blocker cancellation trick and it's pretty much impossible to patch, and this one is the same in that I can't patch it without fundamentally changing the solution.  It's kind of one of those tricks that I really wish wasn't in the game because it doesn't make logical sense to me... i.e. you bash, you remove terrain that undermines the blocker, but the blocker turns you around anyway (I feel like either the terrain doesn't get removed, or rather, it's removed behind the basher, or the terrain is removed and the Blocker falls, but the Basher continues going).  Oh well, can't win them all!

Outside the box...