AI game bots can reportedly top human leaderboards using match replays, but mostly stall on complex-rule games

A post describing a Tsinghua paper says AAArena uses 12 games and 1,920 archived human programs as rivals. Its coding agent studies replays and rewrites its bot without changing model weights. Detailed replays beat win/loss-only feedback in all three games tested: the Pacman bot reached rank 1 with replays versus rank 11 without. Tripling the match budget did not take any of four stuck bots to rank 1.