Puzzle Description:

The words anagram (!)

#1: Kristen Vognild (kristen) on May 23, 2018

Wow! That's really neat!

I'll be darned. Clever.

Edit: Originally, I had a hint here, but it's not really helpful. -_- So here's a trivia fact about an anagram that is useless but fun to know. Tacocat spelled backwards is … Tacocat.

I only needed smile on the u's.

It's a sideways smile, or ordinary 2-way logic. :)

How did I manage to go 50+ years and never retain that little factoid? ;)

Found to be solvable with moderate lookahead by infrapinklizzard.

Line and color logic gets all the red green and blue leaving only a little black (on the 'U's and 'S's).

You can't do smile logic on the top U because the 1 clues in r3 don't have to be over the U. One could be in the S at this point. It borders on deep lookahead to use edge logic on the 2 in r7 to prove it can't go in c37-38.

You also can't do smile logic on the lower U because the left 1 in r13 could go in c38 at this point.

Probably the least lookahead is extended edge logic on the 2 in r17. If it were to go in c41-42, it would force the 1 in c40 up into r13. That would then force the 4 in c39 down creating a conflict in r17. So r17c42 must be white.

LL does all but the top U

Now you can do smile logic to finish.

smile logic?

Here is a page with some advanced solving techniques and the terms we use to describe them:
http://webpbn.com/index.cgi?page=solving.html

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