Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.125 wins per game over 64 seeds (95% interval +0.021 to +0.229).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run dd2a5d1f-f204-4389-9e89-5acb6f97932f
Status: completed. Experiment: d09eaccb-ab3b-4d1f-9b2e-904cf4cf89e9. 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,"discard_projection":true} | 124 | 256 | 48.4% | 42.4%–54.5% | 8.24 | 239.1 ms |
1 / v2:{"depth":2} | 92 | 256 | 35.9% | 30.3%–42.0% | 7.47 | 231.9 ms |
2 / eta | 21 | 256 | 8.2% | 5.4%–12.2% | 6.75 | 0.3 ms |
3 / fast | 19 | 256 | 7.4% | 4.8%–11.3% | 6.45 | 0.2 ms |
Paired contrast slot 0 minus slot 1: +0.125 wins per game over 64 seeds (95% interval +0.021 to +0.229).
Manifest SHA-256: 4b4e140f477342b8966bbfee37fa6050651c3571f99e3909f8a85d8ab5f84539. Inventory SHA-256: d243cb6e0159bcf3db4f09efbe0f4e6adb46a97eb5f71072ccbc6a53d8a2e4c1.
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.