Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.047 wins per game over 64 seeds (95% interval -0.048 to +0.141).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 6638df3f-4e04-41ac-881e-8fc11c12c4ce
Status: completed. Experiment: c0222de1-d17f-4c7a-8c62-812290209546. 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}} | 111 | 256 | 43.4% | 37.4%–49.5% | 7.85 | 64.3 ms |
1 / v2:{"depth":2} | 99 | 256 | 38.7% | 32.9%–44.8% | 7.46 | 62.1 ms |
2 / eta | 25 | 256 | 9.8% | 6.7%–14.0% | 6.75 | 0.1 ms |
3 / fast | 21 | 256 | 8.2% | 5.4%–12.2% | 6.67 | 0.1 ms |
Paired contrast slot 0 minus slot 1: +0.047 wins per game over 64 seeds (95% interval -0.048 to +0.141).
Manifest SHA-256: ea5673f2c62053e256115776d2ff55c02f72066fc57e32cace5842dd91589713. Inventory SHA-256: 7fdd7008de090196dabd005122ce5b322b659120344a4f9c53d1c10b44b6b655.
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.