Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.070 wins per game over 64 seeds (95% interval -0.027 to +0.168).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 77b249a6-80a7-4a4d-98d9-a0a55d3006d6
Status: completed. Experiment: 6a26ed39-a56c-4c50-8bb8-b80f06e230c0. 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":{"block_leader":true}} | 111 | 256 | 43.4% | 37.4%–49.5% | 7.92 | 57.0 ms |
1 / v2:{"depth":2} | 93 | 256 | 36.3% | 30.7%–42.4% | 7.53 | 56.5 ms |
2 / eta | 25 | 256 | 9.8% | 6.7%–14.0% | 6.78 | 0.1 ms |
3 / fast | 27 | 256 | 10.5% | 7.4%–14.9% | 6.76 | 0.1 ms |
Paired contrast slot 0 minus slot 1: +0.070 wins per game over 64 seeds (95% interval -0.027 to +0.168).
Manifest SHA-256: 838b761337c9366489cb825a832832f2159f5bf114a98c8df07fcd1e4465c199. Inventory SHA-256: f2d7e8d05999a15915d49ad3b108571525960a4407decc761f947f138287ad99.
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.