Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.066 wins per game over 64 seeds (95% interval -0.020 to +0.153).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run f83b1214-86de-4614-ba06-6f97d0f04aba
Status: completed. Experiment: 8f739fd6-446d-4dfc-bd2d-80c838b82ec1. 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,"samples":4,"scenarios":8,"inner_scenarios"... | 112 | 256 | 43.8% | 37.8%–49.9% | 7.77 | 247.8 ms |
1 / v2:{"depth":2,"samples":4,"scenarios":8,"inner_scenarios":4} | 95 | 256 | 37.1% | 31.4%–43.2% | 7.46 | 239.0 ms |
2 / eta | 30 | 256 | 11.7% | 8.3%–16.2% | 6.67 | 0.3 ms |
3 / fast | 19 | 256 | 7.4% | 4.8%–11.3% | 6.62 | 0.3 ms |
Paired contrast slot 0 minus slot 1: +0.066 wins per game over 64 seeds (95% interval -0.020 to +0.153).
Manifest SHA-256: 3b27d1133a4525df1c878a8e7972fe010ff79b4718630b7841793459d587e809. Inventory SHA-256: ba12d2a90e2cb4a267f1263531397328977849cbc74df514ed5e6989fafa7063.
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.