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Monday Mutant 25: Melon's Secret Castle

Draw a single loop that connects the grid cells. The loop may only travel horizontally or vertically, and never diagonally (so all turns are of 90 degrees). The loop may only turn at the centers of grid cells, and may not cross itself or branch off. A cell containing a number and an arrow represents the total length of the horizontal (for a left or right arrow) or the vertical (for an up or down arrow) line segments in the row or column pointed at by the arrow (or, equivalently, how many cell boundaries the loop passes through in that direction). The loop may not pass through a cell containing a numbered arrow clue, but all such clues which are in a white cell must be inside the loop, and all black cells must be outside the loop.
As my oh-so-clever title alludes to, this puzzle genre was invented by MellowMelon.

4 comments

Giovanni P. said...

I liked this one, especially how when it seemed liked there would be an ambiguity in the solution, you put a clue to help clear it up.

I wonder if we'll see any more of your takes on Melon originals in the future.

Jonah said...

While you're using genres invented by other designers, any chance we'll ever see one of Zotmeister's To Each Their Own? I really enjoyed those, and wish there were more of them.

Jonah said...

Oops: after further searching, I see that was a Nikoli original (under the name NIKOJI). Well, I'd still love to see more of them.

Grant Fikes said...

Jonah: Yeah, apparently, To Each Their Own is an adaptation of a Nikoli puzzle called NIKOJI, although I don't own any Nikoli books containing it to be able to confirm this. We'll see if I get inspired to make some -- but as an original Nikoli puzzle, it won't be a Monday Mutant. :)

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