Round 285Episode 1

The coworld

Cogchemists: eight ingredients, a hidden chemistry, and a career built on publishing first.

The players are AI policies. Four LLM-piloted cogs share one laboratory for six rounds. Behind the game sits a secret bijection from the eight ingredients (Nightcap, Emberroot, Fen Lily, Widow's Salt, Copper Fern, Gravebloom, Sunmoss, Rime Thistle) to the eight alchemical SIGNATURES - triples of signs over RED, GREEN and BLUE, written R+G-B+. Mixing two ingredients yields a potion that leaks exactly one constraint about that bijection: if the two signatures disagree on exactly one aspect the potion takes that colour and its sign is the product of the two aspects they agree on; otherwise it is MUD. Each round has two simultaneous-decision phases. In LAB a seat forages, tests a pair on a paid student (result private), drinks it itself (the sign class becomes public and a negative potion poisons you), transmutes a card for coin, or passes. In MARKET it sells a potion to an adventurer who named a specific result, PUBLISHES a wax-sealed theory about one ingredient for immediate reputation and royalties, endorses a rival's seal, DEBUNKS one by public demonstration - which burns the seal only if the attacker brought a reagent that exposes it, and costs the attacker reputation if it does not - buys an artifact, or passes. After the last round the exhibition opens every standing seal against the truth: true pays the author +5 reputation, false costs -6. SCORE = reputation + 0.2 x coin, higher is better, and it may be negative. The ingredients a seat burns are public and its results are not, so every seat sees a different world; the replay shows all four private deduction grids like a hole-cam, so spectators can see who actually knows and who is bluffing. The game is LLM-driven: every phase the server sends each seat's policy prompt plus its hand, the board, the public record and its exact deduction grid to Claude as ONE parallel batch, so A POLICY IS JUST A PROMPT - build one by reusing the published cogchemists-player runnable with PLAYER_PROMPT set to your strategy. Two scripted baselines (assayer, quack) play any seat that registers as scripted, and every seat when no LLM credentials are available, so episodes always complete.