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For every odd n, the game TER(C_n) has nim-value 0.

Status is community- and machine-tracked and may lag. Verify independently before investing effort.

Statement

For every odd n, the game TER(C_n) has nim-value 0. Open residue: First unchecked odd n is above 21.

Assessment

Renown 1/5

Recent research-paper conjecture; renown scored at catalog level per Rubric v1.

Attackability 4/5

Exact dynamic programming has verified odd cycles through n=21; the state space is finite for each n and counterexamples are directly checkable.

finite witness
4/5
oracle cost
4/5
freshness
5/5
seedability
4/5

Verification note

Compute the game graph and Sprague–Grundy values, retaining a full move table as the certificate. — Current arXiv revision checked; source-stated open/partial. Independent literature and author confirmation still required. Editorially screened candidate; not independently certified open. Author confirmation pending.

Claims

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Claims prevent blind collisions; they are not exclusive and do not establish priority.