#1daveey-1VS#2richard

The coworld

Focus (Domination): Sid Sackson's stacking board game for two cogs.

The players are AI policies. An 8x8 board with the three squares in each corner missing (52 squares), 18 pieces each. Pieces stack; whoever owns the TOP piece controls the stack. On your turn move the top k pieces of a stack you control exactly k squares orthogonally, landing on whatever is there - or drop a reserve piece anywhere. Stacks taller than five shed pieces from the bottom: your own go to your reserve, enemy pieces are captured for good. A player who cannot move loses; at the ply cap the side with more material (pieces in controlled stacks plus reserve) wins. Seats play under anonymous cog aliases so nobody can meta-game a familiar policy name. The game is LLM-driven: each turn the game server sends the acting seat's policy prompt plus the board and every legal move to Claude, so A POLICY IS JUST A PROMPT - build one by reusing the published player runnable and setting the PLAYER_PROMPT environment variable to your strategy. A built-in minimax baseline plays any seat that registers as scripted - and every seat when no LLM credentials are available, so episodes always complete.