Puzzle Description:

Crazy Quilt

#1: Norma Dee (norm0908) on Sep 25, 2012

Very pretty patterns.

There was some edge logic, but I don't remember guessing.

Well, seeing how it was only my second one I've created I thought it wasn't bad. Sorry if guessing takes the fun out of it.

My first puzzle was a quilt block. You've already gotten twice as many comments as I did :)

Are you a quilter, Amy? Have you made a quilt like this before. It was fun.

No I'm not a quilter. I wish I was, just have never taken the time to learn. I crochet mostly. Glad you enjoyed the puzzle.

I thought it looked like an afghan of granny squares, which fits with your crocheting! Did you know the top left square is not symmetrical?

Keep making puzzles, you'll get better with practice.

I didn't realize at first it wasn't symmetrical. I meant for it to be orginally. I noticed it when I was testing it on my own, but thought that added to the challenge so I kept it that way. I kind of prefer puzzles that are a little more challenging rather than just filling in squares. But maybe thats just me. :)

I agree :) It's actually really hard for me to make a symmetrical puzzle.

Found to be solvable with deep lookahead by gator.

This one I'm going to mark as deep look-ahead even though our human brains can see how this will be finished rather easily. The logic though is a bit more complex.

Most of the puzzle solves fine with line/color logic except for the bottom left block. At this point you will only have red left to finish.

Image the 6 clue in row 19 is extended all the way to the left. Now focus on columns 1-3 (clues 2 6 2). We know R18C2 has to be red because of the 6 clue. We also know that both of the 2 clues cannot extend into row 18, so one of the 2 clues must extend to row 20 (and likewise the 6 clue would also have to extend to row 20 to make this work). This will make R20C5-R20C7 dots. R19C7 was already a dot by extend the 6 clue all the way left. And R18C7 would also have to be a dot since you would be forced to make R18C5-R18C6 red. This makes column 7 invalid since there would be no place to put the bottom 1 clue. SO from all of that, we know R19C1 is a dot. The same logic can be applied if the extend the 6 clue right which will end up causing R19C10 to be a dot. And in fact this same logic can be applied all around the "square".

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