Read /workspace/maths/notes/supergrok-2026-08-17/house.md and follow it.

Your folder: /workspace/maths/problems/affine-013 Your problem: P05, extremal affine copies of {0,1,3}.

Read PROBLEM.md, notes/lists/2026-08-16-proposed-50.md P05, notes/picks/2026-08-16-judge-codex.md P05, refs/walkthrough-style.md.

Goal: a certified construction or exact upper bound that moves the asymptotic constant, or a small-n extremal table that implies one. Isolated small-n counts are not a dent.

Start by fetching Green 100 #24.

Work until you have a verified dent or a documented residue. Write ATTACK.md as you go. Finish with WALKTHROUGH.md and RESEARCH.md.