Puzzle 35 – Yajilin and

This is a yajilin puzzle with a little bit of a backstory.  Here is where I told Chaotic I was proving NP-completeness of KenKen, and after complicatedly and inelegantly doing so, here is where he did so in a really simple and  annoying-that-I-didn’t-think-of-it manner. Lastly, “My target: Prove or disprove that Yajilin is NP-complete” – Chaotic_iak.

The following Yajilin has 4 solutions, can you find them all?

So this week was a little bit experimental without the day ratings and exploring an idea rather than a theme, but I had fun making these. Also, note the double meaning in the title. The other puzzles had titles like “Seek-and-Spell and Anglers” where as this one has no second puzzle, yet this is also a Yajilin “and”. (The shaded cells could be filled with numbers pointing toward the edge or with no information, but I was lazy and they are pretty implied so…)

Note that this is not a proof of NP-completeness without crossing wires, which I was not able to manage. I found how to do shifting, turning, and copying wires, but not crossing.





One thought on “Puzzle 35 – Yajilin and

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s