v1: Constraint fill (≥5 = LIKELY)
v2: Candidates (≤2 = LIKELY)
LIKELY → Find the shape:
● Lock — bread forced
◐ Signal — filling detection
═ Beam — sandwich scan
◈ Resonance — sum resonance
⟶ Vision — sandwich forcing
Mistake Budget:
Easy: 10 | Med: 8 | Hard: 7 | Expert: 7