Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.168 wins per game over 64 seeds (95% interval +0.070 to +0.266).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 274e5330-a5e4-4270-952b-adc3b86a4cce
Status: completed. Experiment: 8124d197-95fd-4a7f-a889-65138713cc70. 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,"weights":{"opponent_expansion":0.5}} | 127 | 256 | 49.6% | 43.5%–55.7% | 8.26 | 209.0 ms |
1 / v2:{"depth":2} | 84 | 256 | 32.8% | 27.4%–38.8% | 7.33 | 148.3 ms |
2 / eta | 29 | 256 | 11.3% | 8.0%–15.8% | 6.70 | 0.2 ms |
3 / fast | 16 | 256 | 6.2% | 3.9%–9.9% | 6.40 | 0.2 ms |
Paired contrast slot 0 minus slot 1: +0.168 wins per game over 64 seeds (95% interval +0.070 to +0.266).
Manifest SHA-256: 7deeb78218f4dea20ff0013ece217400e85a307cd5709a3f412fabca459496b1. Inventory SHA-256: af7907b43251fa1a0c5ded48acf2f5bc5925a79e10e7f2296f6803848ea8b611.
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.