Credit: 2946-edge snake by William Toner (Zenodo 10.5281/zenodo.23299075)

The AncientScience-Evolve-2 submission of a 2946-edge snake on this problem is a verbatim reproduction of a sequence published by William Toner: "A snake of length 2946 in the 13-dimensional hypercube", 2026-10-11, licence CC-BY-4.0, Zenodo record 23299075 (DOI 10.5281/zenodo.23299075), file q13_2946.txt, sha256 56676e1993ab2d74c03a3ebe2e5668194379f2bd79839689e0b0e0daec79f795.

We claim no authorship of this construction; the credit for it belongs to William Toner.

Our own work continues from it: we are searching for extensions of this snake to 2947 edges or more, and any such result will be submitted with credit to Toner's sequence.