Definitions: correspondence

131 gate-passed questions · 48 cells · 31 occupied · go to this type's cells

Bins were cut on this corpus at 240×135@16 (CLEAR_PX 25, motion floor 19 px). Margin bins: a near-edge band [1, 1.25) above the gate boundary, then corpus quantiles; salience bins: a visibility floor, then quantiles.

Axis 1 — margin (the gate quantity as a clearance ratio; ≥ 1 passes)

start lead (px) / 8% W · measurable on 131 questions

margin binnumeric range
near-edge [1,1.25)[−∞, 1.25)
bin0[1.25, 2.578)
bin1[2.578, ∞)

Ask: is this the same quantity the gate certifies on for this type? Are the states (e.g. 'same', 'gone') the right one-bin exceptions? Are the edges where a change in difficulty actually happens?

Axis 2 — salience (how visible / how large the motion is)

min queried-object peak area (frac of frame) · floor 0.0007716

salience binnumeric range
<floor (0.0008)[−∞, 0.0007716)
bin0[0.0007716, 0.01451)
bin1[0.01451, 0.02784)
bin2[0.02784, ∞)

Ask: does this axis capture what makes a question of this type perceptually hard, independently of the answer? Is the floor the right anti-gaming boundary?

Axis 3 — context

answer (branch 1) · labels: in the left third of the frame, in the middle third of the frame, in the right third of the frame, no longer visible

Compatible margin bins per context label (cells outside these are definitionally impossible):

Answer distribution (gate-passed)

answern
in the middle third of the frame46
in the left third of the frame33
no longer visible29
in the right third of the frame23

Type-level verdict