English

Col is PSPACE-complete on Triangular Grids

Computational Complexity 2025-01-28 v2 Combinatorics

Abstract

We demonstrate that Col is PSPACE-complete on triangular grid graphs via a reduction from Bounded Two-Player Constraint Logic. This is the most structured graph family that Col is known to be computationally hard for.

Cite

@article{arxiv.2501.06574,
  title  = {Col is PSPACE-complete on Triangular Grids},
  author = {Kyle Burke and Craig Tennenhouse},
  journal= {arXiv preprint arXiv:2501.06574},
  year   = {2025}
}

Comments

10 pages, 16 figures

R2 v1 2026-06-28T21:03:31.499Z