No tree, no minimax. Every legal move gets a belief from transparent chess logic, then the beliefs relax against each other — a move gains support when other good moves share its plan. Watch the beliefs argue until one wins.
A generative interpretability object: the same relaxation-labeling engine as the sims, applied to move
selection. The priors are biased by a chess_mind style fingerprint, so it plays like the seed player — it hunts
kings and dabs the queen. It won't outcalculate Stockfish; it will tell you why it moved.