I beat 16. Taking a time out for 17 though after a few brief attempts. Cool game, thanks for the link.
I was thinking that this game was the game I thought it was. It’s elsewhere on the web as 3D logic cube.
I once got up to 23, but I had to start over (I was playing it with my Wii actually, and had to relinquish control of the TV.)
I was stuck on 16 for the longest, and it drove me crazy, cause I knew I beat it.
I get the general premise, and rules of thumb, but as I’ve lost all progress in the game, I dont want to get pulled back in.
I have a love hate relationship with games like this. … hate that I love them so much.
I mean, I KNOW I can beat it. Eventually.
I got through 16, 17, 18 okay, but now I am totally stumped on 19. Grrr.
can’t work it on a Macintosh 2-button “mighty mouse”
I gave up on my mac keyboard and mouse a long time ago. I am working my iMac with a …Microsoft keyboard and mouse! Hey, I found something that Micro$oft is good for!
You guys are making me think that I can actually conquer Level 16. Back into the fray.
Hmm. Now I’m stuck on 15.
Ugh, also stuck on 16. Usually I can just stare at a level for awhile and the solution will suddenly reveal itself to me, but I’m stumped and my brain hurts.
Ugh. Level 16 bites. Pretty soon I am going to break down and read those spoilers.
Thanks so much, featherlou, I needed this like I needed a hole in the head. 
19 is a trick, right? It’s unsolvable and just put there to drive me crazy and keep me from going to bed.
I got through all 30 levels after much crying, obsessing, and losing my entire freaking day.
It was worth it, though.
L17 now as I wait for the first of several install dances to finish. It’s evil. EVIL IS WHAT I SAY.
And I’m sharing the misery far and wide. 
Woohoo, I finished! Wow, that was a brain-frying exercise for sure. Oddly enough the last two were easier for me. #26 was a right bastard. I think I only got one bonus – my final score was 50534.
Thanks for this, featherlou. Lots of frustrating fun. 
I’m stuck at 17 right now (at home).
Any way to “save” a password to skip straight to a level. I couldn’t find one and I’d like to work on it at work.
Shouldn’t you be working on work at work? 
This game is devouring me, thanks a lot OP. I’m stuck on 16. How about a wee hint? Not a spoiler, but a gentle nudge?
A small hint for 16:There’s one uncolored square in the solution.
Are you new here?
Ooh, up to level 19!
I noticed in the final ten that it either took me about 30 seconds to solve a puzzle, or three hours. THey were easy very simple or very hard, no moderately difficult ones in the bunch.
If anyone can offer guidance on 19 it would be appreciated. My brain is about to assplode.
20 min in and I got to 17, I’ll play later.