Hilbert 16 degree 8, 2026-09-26

Number of nonempty degree-eight T-curve schemes remains ≥ 2,415.

The leftover 93 one-flip radius-three balls of the three unused q11 followup certificates all finished (1,416,018 evaluations) and produced no scheme outside the 2,415 baseline (paper 2,367 + seventeen parent additions + q8's ⟨3 ⊔ 1⟨3⟩ ⊔ 1⟨12⟩⟩ + nine q9 schemes + thirteen q10 schemes + eight q11 schemes). Neither open (19,3) deep nest is decided.

Replay: python3 problems/hilbert16-degree-8/compute/q12/controls.py and python3 problems/hilbert16-degree-8/compute/q12/coverage.py. Claim: problems/hilbert16-degree-8/compute/q12/CLAIM.md.