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Thanks to sophie for a helpful suggestion.


play online now (flash)
download source code (flixel/as3)


  1. Tametick wrote:

    You know those lines are green, not yellow? ;)

    Thursday, May 12, 2011 at 9:41 pm | Permalink
  2. OOPSfixed…


    Thursday, May 12, 2011 at 9:49 pm | Permalink
  3. gsoto wrote:

    Damn, that last one was hard.
    I didn’t get why the blue lines become white sometimes when inserting them into the red ones.
    My only critique is that the “blocking” lines aren’t instantly differentiable from the normal ones.
    I’m greatly enjoying these puzzle games. I wonder what’s your usual approach to level design here, since some of them seem quite complex.
    Thanks, as always.

    Tuesday, May 17, 2011 at 2:14 am | Permalink
  4. Radiatoryang wrote:

    I still can’t get past level 4. Gahhhh.

    Wednesday, May 18, 2011 at 9:46 pm | Permalink
  5. Emerson wrote:

    Yet another fantastic and titillating game

    Thursday, May 19, 2011 at 9:14 pm | Permalink
  6. ZeroPandaSections wrote:

    This game is brilliant! I’ve never played anything with similar game mechanics – what lead you to the idea behind it?

    Monday, June 10, 2013 at 9:34 pm | Permalink
  7. it’s inspired by a mathematical trick, which’s described here (spoiler warnings) – – see if you can figure out how the technique applies to this game :) is based on the same technique

    Monday, June 10, 2013 at 9:44 pm | Permalink