Are most players able to solve without a walkthrough?

[swingline]

Hi all, Genuinely curious question here: Are most players able to solve these puzzles without a walkthrough? I'm kindof wondering if my mind is just failing me, but I only got partway through before I started getting regularly stumped when trying to perfect some levels - to the point that I couldn't even progress. Really enjoyed what I played, but it surprised me how early in the game I hit the wall.

I figure anyone one the boards here is probably a diehard expert on the game, but appreciate any comments.

[TheGlecter]

I remember some memory blocks being quite hard to solve, but the amounts of blocks needed to progress to the next world were quite low too. So yeah, you should be doing just fine with no walkthrough... :P

There's one of the bonus puzzles that requires a piece of external knowledge, though. You will most likely want to pick a guide for that one.