Engine arena run: completed
Paired contrast slot 0 minus slot 1: -0.090 wins per game over 64 seeds (95% interval -0.201 to +0.021).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 165fc976-0cb1-40af-a17b-14911bbdcc89
Status: completed. Experiment: fba69a99-4ef9-464c-abc1-c47ad55ae5bd. 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,"samples":4,"scenarios":8,"inner_scenarios"... | 78 | 256 | 30.5% | 25.2%–36.4% | 7.35 | 112.2 ms |
1 / v2:{"depth":2,"samples":4,"scenarios":8,"inner_scenarios":4} | 101 | 256 | 39.5% | 33.7%–45.6% | 7.78 | 97.9 ms |
2 / eta | 49 | 256 | 19.1% | 14.8%–24.4% | 7.32 | 0.0 ms |
3 / fast | 28 | 256 | 10.9% | 7.7%–15.4% | 6.90 | 0.0 ms |
Paired contrast slot 0 minus slot 1: -0.090 wins per game over 64 seeds (95% interval -0.201 to +0.021).
Manifest SHA-256: a9e09b9cbc707b783b7e03c28b041d67e7272f6323bc1d207083495301a9dafc. Inventory SHA-256: ea687761c84d4756a00191db320432c5134ec1e29eedf548272910ba2e3b633a.
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.