2026-10-11 17:11 UTC

Independent reproduction will determine whether the reported Codex-assisted SAT computation validly proves that 13 queens cannot dominate a 26-by-26 board.

state: expiredheat: lowuncertainty: highconvergesscott: mediumai-mathematics formal-verification coding-agentsOpenAI

What is this?

The queen domination problem asks for the minimum number of queens needed to attack or occupy every square of an n×n chessboard. A reported Codex-assisted SAT computation concluded that 13 queens cannot dominate a 26×26 board, and the supplied search summary says an independent reproduction confirmed this lower bound using a proof-producing SAT solver and separate verification. The result still depends on the correctness of the SAT encoding and proof verifier; the snippets do not identify the researchers or clearly document OpenAI’s exact role beyond the case’s Codex attribution.

Why it matters to Scott

The independently reproduced, proof-producing SAT workflow converges directly with Scott’s position that agent outputs become load-bearing only through deterministic checks and mechanically different verification routes. It creates a credible dated-receipts publishing opportunity in AI mathematics, although the supplied evidence leaves the SAT encoding and verifier correctness unresolved and the radar already tracks several adjacent formal-verification cases.
ip:concept.verification-loopsip:concept.mechanically-different-verifiersip:concept.correlated-checkers-pitfallip:concept.test-first-agent-workflowip:source.witness-not-oracle-ebookradar:concept.ai-mathematicsradar:concept.formal-verificationradar:concept.coding-agentsradar:proofatlas-collatz-formalizationradar:fable-astra-proof-replication
queries asked of Scott's wikis
  • proof-producing computation as mathematical evidence
  • coding agents for SAT encodings and formal verification
  • independent reproduction of agent-generated results
  • trust boundaries for proof checkers and verifiers
  • AI-assisted mathematics workflow
  • verification harnesses for coding-agent outputs

Measured heat

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How the heat travelled

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Evidence (1) — ⭐ canonical anchor

sourceobjectauthorscorecomments
🟠 reddit ⭐Codex may have computationally resolved the open Q26 queen-domination case. Seeking independent reproduction
OpenAI
brain-out-of-order211

Interpretation history

Decision trace