2025/06/14 by Breen, Joseph, Copeland, Emma
#05A19 #Combinatorics (math.CO) #FOS: Mathematics
paper · doi:10.48550/arxiv.2506.12612
We study Nurikabe puzzles on non-orientable surfaces. Specifically, we propose two versions of non-orientable Nurikabe and investigate their combinatorics on Möbius strips, Klein bottles, and projective planes of size 1× n. Our results establish new connections among the OEIS sequences A101946, A213387, A123203, and A001045 (the Jacobsthal sequence).