Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.168 wins per game over 64 seeds (95% interval +0.073 to +0.263).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 42f26989-d3ee-4028-8e9b-94ed1721f2af
Status: completed. Experiment: 4f63e9ca-6a55-486f-931e-e892653a1d9c. 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,"threat_pricing":false} | 127 | 256 | 49.6% | 43.5%–55.7% | 8.23 | 170.3 ms |
1 / v2:{"depth":2} | 84 | 256 | 32.8% | 27.4%–38.8% | 7.36 | 169.5 ms |
2 / eta | 29 | 256 | 11.3% | 8.0%–15.8% | 6.68 | 0.2 ms |
3 / fast | 16 | 256 | 6.2% | 3.9%–9.9% | 6.39 | 0.2 ms |
Paired contrast slot 0 minus slot 1: +0.168 wins per game over 64 seeds (95% interval +0.073 to +0.263).
Manifest SHA-256: a0d24647c50a3a7178dc3b53f5cfe41b92626a3dbe8636e294b1d64ea2962e71. Inventory SHA-256: f6e5b76edaf1512e30ff27e14ae6c0f748892199ec006f92286d186e946d42a0.
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.