Nine personas. One adversary.
A fixed roster of nine specialist personas, plus one persistent adversary whose job is to attack the strongest position from the round before.
Each round gathers every persona's position, hands them to the adversary, and writes down what survived. That becomes the seed for the next round. The loop ends on saturation — when a round produces no new surviving claim — rather than when a token budget runs out. Every claim that reaches the final answer is traced back to its source and checked against it, so the result is auditable rather than a confident guess.