Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.219 wins per game over 64 seeds (95% interval +0.124 to +0.314).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 4228f4f7-4427-42a4-8c0f-3976e1d26c76
Status: completed. Experiment: 0250ba3c-1631-427e-bddc-9930a1504334. 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} | 137 | 256 | 53.5% | 47.4%–59.5% | 8.43 | 110.8 ms |
1 / v2:{"depth":2,"bargain":false} | 81 | 256 | 31.6% | 26.3%–37.6% | 7.27 | 70.7 ms |
2 / eta | 22 | 256 | 8.6% | 5.7%–12.7% | 6.72 | 0.1 ms |
3 / fast | 16 | 256 | 6.2% | 3.9%–9.9% | 6.48 | 0.1 ms |
Paired contrast slot 0 minus slot 1: +0.219 wins per game over 64 seeds (95% interval +0.124 to +0.314).
Manifest SHA-256: 1d2d14707a066dd17e28a35a1ccdead9d44670666a48b51fcca42e3bd6f607ac. Inventory SHA-256: 4430f1684f14795f4fce3880c9e3a576af9d7714d07f031b28bf13bf9440d91d.
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.