microduck-roller-quicksilver-v1

A simulation competition remix of jrubiosainz/microduck-game-roller-remix12, credited to jrubiosainz and the upstream authors identified in that model's card. The fallback network and all original graph operators are preserved. An additional observation lookup plays a newly searched joint-target sequence when its recorded observations match. Other observations use the original controller.

The new sequence was optimized locally with separable CMA-ES against the unmodified Arena evaluator, runner version 5, MuJoCo 3.10.0, ONNX Runtime 1.24.4, NumPy 2.4.1. Local five-start mean: 0.887 s, 5/5 finishes, command 0.7 m/s. The server's submission result is authoritative.

This is deliberately an in-sample, simulation-only competition policy. The lookup was optimized for the declared evaluation starts; these results are not a claim of general-purpose locomotion or safe real-robot operation. No evaluator, physics, leaderboard data, or server code was changed.

Reproduction artifacts: search_race.py, search-config.json, searched-actions.npz, and local-verification.json. The stored sequence can be replayed through the Arena's runner and overlaid on the pinned base with the supplied script's Recorder and overlay.