Castle Wall by Prasanna Seshadri
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)
Theme: Antisymmetry
Author/Opus: This is the 55th puzzle from our contributing puzzlemaster Prasanna Seshadri.
Rules: Standard Castle Wall rules.
Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma.
Time Standards (highlight to view): Grandmaster = 1:15, Master = 1:40, Expert = 3:20
Solution: PDF
Note: This is our first week of Castle Wall puzzles. You can find other Castle Walls from their inventor Palmer Mebane here.
That was very cool! I’m not sure exactly why but I found the logic required for this puzzle immensely satisfying.
– Neelix
Wow! Is this the first perfectly antisymmetric Castle Wall? It’s pretty striking.
This is a really nice puzzle type. I enjoyed it quite a bit.
And thanks for the tip about counting crossings. For whatever reason, I’ve always struggled when entering loop length segments in the answers for puzzles like Yajilin, (where I know what the rule is, but I still end up making off-by-one errors on the answer string). I hadn’t thought to count crossings before, but that will help.
And even more in this puzzle, where that’s necessary for all the clues, not just the answer string.
11:50
smart enough to solve a puzzle, a bit too dumb to enter the answer string correctly.