PASSES 3506–3512 · EXACT SEVEN-FRONT PACKET

The 57-hole is scheme-blind—and Moore matchings carry curvature.

A gauge-reduced Moore-57 solver surface, literal Golay/Witt descendant chains, a complete Krein audit, a W33–Gewirtz polynomial compiler, and two deliberately high-risk but exact experiments.

Moore-57 permutation CSP

86,240

Independent entries in the 1,540 row-pair permutations of the 56×56 residual grid.

172,480

Directed CP-SAT integer variables with inverse channels, versus 4,743,200 one-hot Boolean variables.

6,271

Base permutation, inverse, vertex-star, and gauge constraints before lazy curvature cuts.

27,720

Row triangles inspected for fixed points of non-Abelian permutation holonomy.

Boundary. The model and separators are implemented; the 56-fibre instance is not claimed solved.

Two exact descendant chains

Clebsch → Petersen
Higman–Sims → M22 → Gewirtz
F₂⁵ even words

The Clebsch second shell at zero is the ten weight-two words with disjoint-support adjacency: Petersen KG(5,2).

1 + 759 + 2576 + 759 + 1

The extended binary Golay weight distribution is regenerated from a cyclic generator.

S(3,6,22)

Fixing two Golay coordinates yields 77 hexads, with every triple covered exactly once.

100 → 77 → 56

Incidence extension gives Higman–Sims; its second subconstituent is M22; avoiding a point gives Gewirtz.

The 57-vertex hole passes every ordinary scheme test

SRG(57,14,1,4): q₁₁=(38,1273/49,1140/49)
q₁₂=(0,540/49,722/49)
q₂₂=(18,342/49,111/49)

All entries are nonnegative, and both absolute bounds pass. The known nonexistence therefore lives beyond the rank-three Bose–Mesner algebra—in local compatibility or star complements.

W33 ↔ Gewirtz: what actually transplants

A² + 2A − 8I = 0   ⇒   f(A)=aA+bI
U=(-I-A)/3   and   U²=I
LevelTransfers automatically?Examples
Polynomial-onlyYesAdjacency identities, two-channel calculus, complement reflection
Multiplicity-sensitiveNoTrace, determinant, projector ranks
Geometry-sensitiveNoLines, incidence factorizations, codes, automorphism groups

The surviving 57-cell symmetry shadow

|PSL(2,19)| = 3420

Conditional oddness of Aut(M57) kills the full group and every common A5 action.

19:9 = 171

The odd Borel point stabilizer lies below the peer-reviewed odd-order bound 375, so parity alone does not exclude it.

Bonkers experiment I: permutation curvature

15 matchings + 20 holonomies = all 2³

In an exact Hoffman–Singleton edge chart, every row-pair matching and every triangle holonomy is a fixed-point-free involution. The high-risk M57 branch asks for cycle type 2²⁸ throughout. This is an ansatz, not a necessity theorem.

Bonkers experiment II: Golay puncture functor

[23,12,7] → [24,12,8] → S(3,6,22) → M22 → Gewirtz

Higman–Sims, M22, and Gewirtz are reconstructed as one executable coordinate-fixing, incidence-extension, and point-avoidance pipeline—not isolated parameter coincidences.

Machine certificate

PASS_7_FRONTS
15ab9b21e744e755917e0b4c40ec806b43c5463b8a11cfbfac7bdbb4a9c8dfe7