More levels, more mechanics, more whiteboard!
We've been developing a bunch of new techniques to use in puzzles, and felt two of them—stacking & carrying—were significant enough to require their own dedicated Intro and Edu levels, and so the accompanying category on our board.
The left side has the first 14 levels from recent playtest build (level 15, of course, will be moved to later as we'd planned). These levels take the player through the basics, then pushing, water, and lasers. We have a couple more levels we'd like in/after this block, before we move onto the next mechanic: repulsion beams.
Levels in the top left corner of each section are Intro levels, which demonstrate the new mechanic to the player. These are followed by Edu levels (second row), which teach the player a particular use of or technique involving the new mechanic. Below the line are the puzzles, rated Med or Adv and arranged in the rough order we think they should go. Of course, we won't run through all the repulsion levels before moving onto the next mechanic! Everything above the line must be in the order shown, but anything below the line can be moved around, and are placed for the moment in the earliest spot they could conceivably occupy. We will of course be mixing the puzzles up to manipulate difficulty, refresh and reinforce techniques, and ensure the player's experience doesn't feel stale.