Puzzle 363 (Remembered Length)

Puzzle 363

This is on the bottom of the description page, but I’ll copy it here: the shading is just for aesthetic purposes and can be ignored when solving.

This entry was posted on September 28, 2011 at 4:00 am and is filed under Remembered Length, [2] Wed/Thurs. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

Jonah Says:
September 28, 2011 at 1:16 pm | Reply
Well that was refreshingly pleasant. I think I can get used to this new difficulty schedule.
TheSubro Says:
September 28, 2011 at 3:05 pm | Reply
Great puzzle. Really enjoy that type.

Thanks.

TheSubro
Bram Says:
September 28, 2011 at 6:41 pm | Reply
I liked this. Somewhat sad though as this was exact idea I had to introduce this genre to my blog.
Marcin Mucha Says:
September 29, 2011 at 11:29 am | Reply
Beautiful puzzle. I had some trouble with one of those earlier, but this one had excellent flow for me.
Georgi Says:
September 29, 2011 at 9:20 pm | Reply
I just now realised that two adjacent parallel lines must go in opposite directions =\. After that it was smooth sailing.
- Andy Says:
  October 4, 2011 at 7:46 am | Reply
  I uneasily came to this same conclusion by inspection/assumption, without really figuring out a real proof – can someone give a quick explanation of why this is always the case? Perhaps it’s obvious.
  
  I’m guessing this will help ease some of the trouble I’ve had with previous RLs..
  - MellowMelon Says:
    October 4, 2011 at 9:42 am
    It’s a topological thing. Think about how the loop has to circulate around the interior (or exterior) in the same direction the whole time. If it’s moving left on one side of the interior, it has to be moving right on the other.