Building on the results published in arxiv:2004.12849 we present a general framework for demonstrating the NP-hardness of satisfying many genres of loop and path puzzles using a 'T-metacell' gadget. We then use this to prove the NP-completeness of a variety of such genres, and discuss some of the limitations of this gadget.
Cite
@article{arxiv.2202.02046,
title = {A Framework for Loop and Path Puzzle Satisfiability NP-Hardness Results},
author = {Hadyn Tang},
journal= {arXiv preprint arXiv:2202.02046},
year = {2022}
}