Extensive Form.

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Buyer translation: this reference page maps the mark to a tool, system, control, deployment, or evidence question. game tree · sequential moves · Extensive Form is a strategic-interaction primitive: the game shape Planisphere can detect inside an AI tool deployment's behaviour.

register 05 · Game theory· slug extensive-form· family strategy 🌲 · best-fit emoji
01 ·

Promise. strategy

The contract this mark binds — derived, not asserted.

Extensive Form is a strategic-interaction primitive: the game shape Planisphere can detect inside an AI tool deployment's behaviour.

Answers: How does Planisphere recognise a Extensive Form pattern in an AI tool deployment?

02 ·

What this is.

Twelve marks · strategic interaction primitives · same construction

Use. game tree · sequential moves.

Source. root + branches + brass optimal path.

Register. 05 · Game theory — one of the ten registers of the PLANiSPHERE corpus library.

03 ·

See it work.

Evidence record you can check — not code you have to trust.

Planisphere measures your tool deployment against Extensive Form and seals the result into a signed, Merkle-rooted evidence record. The grade recomputes on your own hardware; the model state never crosses the boundary.

04 ·

The board that carries this.

Related marks, and the surface this one funnels to.

Extensive Form is measured into the same evidence record as every other mark in the Game theory register. That measurement becomes compliance-ready buyer evidence at /trust-packet.

Auction reg 05 · mechanism · bid clearing Coalition reg 05 · winning subset · Shapley value Cooperative reg 05 · surplus sharing · core solution Minimax reg 05 · saddle point · worst-case bound
05 ·

Routes here from.

Where this mark is referenced in the Planisphere surface.

Methodology

Any internal link in the Planisphere site that names "Extensive Form" canonicalises here.

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First evidence record within 21 days of access · re-runs in a single business day.