Cool. Thanks for the input, and I will certainly check out your boards.

I can't say I found it particularly challenging except perhaps the last room but the only reason for this was because there are absolutely no antlines or symbols in the chamber at all. The player has no idea what the consequences of their actions are or what links to what so they're solving the chamber through guesswork rather than logic making for a very unsatisfying chamber to solve. The ideas in here are quite good but the player needs to interact with things and know what's going in the chamber to make it an interesting test.

I've got a little collection of chambers going and I'm always interested in feedback on each chamber or the collection as a whole. I'd be grateful if you'd have a look:
Elementary