### Tapa-Like Loop by Prasanna Seshadri

PDF

or solve online (using our beta test of Penpa-Edit tools in linex mode where left click+drag draws lines and right click marks X’s on edges)

Theme: Odd One Out

Author/Opus: This is the 45th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: In this variation of Tapa, the wall is in the form of a single non-intersecting loop. Clues inside the grid represent the number of neighboring cells visited by the loop; if there is more than one number in a cell, each number should be represented with a separate loop segment. There is no 2×2 rule of Tapa in this puzzle. This example image should help:

Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. Separate each row’s entry with a comma. For the example, this would be “11,12”.

Time Standards (highlight to view): Grandmaster = 9:00, Master = 15:00, Expert = 30:00

Solution: PDF; a solution video is available here.

Note: Follow this link for other Tapa-Like Loop puzzles. If you are new to this puzzle type, here are our easiest Tapa puzzles to get started on.

• Jack Bross says:

That was pretty tough for me, although the solving path in retrospect is something I think I could learn to do pretty quickly if I had a deeper feel for the genre. I’d be curious to know if the test solvers were widely varied on this one.

• edderiofer says:

I ended up having to bifurcate slightly to spot the main break-in.

• egrieg says:

Oh my… i couldn’t find the intended path at all. After spotting some deductions in the corners i had to bifurcate like crazy, eventually randomly stumbling onto a solution. Knowing how the solution looked i went back to make some educated guesses to reach contradicions, which i eventually found, but only after a huge huge bifurcation.. don’t know what i missed, too bad that there is no walkthrough for this one.

• Rajesh Kumar says:

This was a very tough one. However, thanks to the solution video, there are many things that I learned that will help me to solve these types of puzzles.

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