Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.309 wins per game over 64 seeds (95% interval +0.237 to +0.380).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 8dfca00b-69c3-4e54-a8dd-b90ee75e63d5
Status: completed. Experiment: 6ad995b4-dfe4-41a6-8c67-c8d0bf35af8e. 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} | 107 | 256 | 41.8% | 35.9%–47.9% | 7.80 | 75.2 ms |
1 / eta | 28 | 256 | 10.9% | 7.7%–15.4% | 6.79 | 0.1 ms |
2 / v2:{"depth":2} | 97 | 256 | 37.9% | 32.2%–44.0% | 7.68 | 77.7 ms |
3 / fast | 24 | 256 | 9.4% | 6.4%–13.6% | 6.63 | 0.1 ms |
Paired contrast slot 0 minus slot 1: +0.309 wins per game over 64 seeds (95% interval +0.237 to +0.380).
Manifest SHA-256: ea667df3fd9876518fff0054487dda66a362be20c70c472c476ec4f2229d70ef. Inventory SHA-256: ec572c46beb3da80e6ba7bdcad17672cd4555d01f1aa102e5136de336c393df0.
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.