Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.172 wins per game over 64 seeds (95% interval +0.080 to +0.264).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 7cc6f1aa-faad-448f-9224-6ffaecce53f0
Status: completed. Experiment: 7ac46868-0f78-4f10-bd6c-49c9437d24ad. Tier: engine arena (paired seeds, deterministic tapes).
Planned: 256. Attempted: 256. Completed: 256. Incomplete: 0. Unplayed: 0.
| Slot / seat | Wins | Completed | Win rate | 95% Wilson interval | Mean points | Mean decision |
|---|---|---|---|---|---|---|
0 / v2:{"depth":2,"endgame":{"hidden_points":true}} | 129 | 256 | 50.4% | 44.3%–56.5% | 8.35 | 277.2 ms |
1 / v2:{"depth":2} | 85 | 256 | 33.2% | 27.7%–39.2% | 7.36 | 271.6 ms |
2 / eta | 25 | 256 | 9.8% | 6.7%–14.0% | 6.72 | 0.3 ms |
3 / fast | 17 | 256 | 6.6% | 4.2%–10.4% | 6.43 | 0.3 ms |
Paired contrast slot 0 minus slot 1: +0.172 wins per game over 64 seeds (95% interval +0.080 to +0.264).
Manifest SHA-256: c5053cf8b688411e1e6a6a057a92c08cbd2b6cd570abd0ddb60fda041594c653. Inventory SHA-256: e5c5f5d39f7a7646e8de8ec86267a4171d362aa16b3f361ea5bc1aeab22d64b3.
Games were played offline by the engine arena with explicit seeds; every seed was played once per lineup rotation. Seats received only their own redacted observation and participant events. This tier supports development and diagnosis; it is not a protocol-arena confirmation.