Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.184 wins per game over 64 seeds (95% interval +0.086 to +0.281).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 43215190-c80d-44e6-a8d5-e922c344392c
Status: completed. Experiment: 945e89c0-4928-421b-82d3-f003526cb7ed. 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} | 131 | 256 | 51.2% | 45.1%–57.2% | 8.29 | 50.6 ms |
1 / v2:{"depth":2,"discard_projection":true} | 84 | 256 | 32.8% | 27.4%–38.8% | 7.45 | 46.6 ms |
2 / eta | 25 | 256 | 9.8% | 6.7%–14.0% | 6.71 | 0.1 ms |
3 / fast | 16 | 256 | 6.2% | 3.9%–9.9% | 6.37 | 0.1 ms |
Paired contrast slot 0 minus slot 1: +0.184 wins per game over 64 seeds (95% interval +0.086 to +0.281).
Manifest SHA-256: f935b9cbd673ad0ff29a48b73a462e222fbe6365ab72d55da6683395edc7828d. Inventory SHA-256: 512df1257e8f67854e33b95afde41228735246236ac19792fca86c93a0f7174c.
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.