Puzzle Description:

Blue Hawaii

#1: Joe (infrapinklizzard) on Sep 21, 2010

I'm pretty sure I solved this with logic, but I will have to go back and make a tutorial to make sure. It was very difficult.

I'm having some trouble getting to a solution myself. I would appreciate the tutorial.

Whew, there's a day spent.

Here's the tutorial: http://infrapinklizzard.deviantart.com/art/Logic-10422-180203025

Definitely solvable. Though I did say it wasn't easy.

I *think* I solved it with logic. There was a ton of deep, deep internal edge logic. I looked at your tutorial, Joe, and I believe I did most of what you showed, but I also used some two-way logic. Somewhere.

My brain hurts.

Solved without guessing.
Once normal logic exhausted, use edge logic in the middle: on row 1 twice, then on row 2 twice, back to row 1 once and again on row 2 once. This gets a mark on r2c6.
Placing '3' clue of column 4 in first 3 rows is impossible.
Normal logic will solve the rest of the puzzle.

Found to be logically solvable by Gator.

Joe - I apologize for not taking a closer look at your walk-through. I was able to use edge logic to get to the point where I was able to use the logic to show where R1C4 is a dot.

Kadou - thanks for looking at this too.

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