Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.242 wins per game over 64 seeds (95% interval +0.140 to +0.345).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run ec904c96-b029-4d1b-8d37-393cc15ebb5a
Status: completed. Experiment: acf5812a-4596-4d09-b401-9c29758df92b. 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":3,"time_budget_ms":1500,"samples":4,"scenario... | 135 | 256 | 52.7% | 46.6%–58.8% | 8.07 | 612.3 ms |
1 / v2:{"depth":3,"time_budget_ms":1500,"samples":4,"scenario... | 73 | 256 | 28.5% | 23.3%–34.3% | 6.98 | 363.0 ms |
2 / eta | 30 | 256 | 11.7% | 8.3%–16.2% | 6.71 | 0.0 ms |
3 / fast | 18 | 256 | 7.0% | 4.5%–10.8% | 6.26 | 0.0 ms |
Paired contrast slot 0 minus slot 1: +0.242 wins per game over 64 seeds (95% interval +0.140 to +0.345).
Manifest SHA-256: f953e1569d85d8ce59a42c756a98473084fc1a526bac5ce799d6525557545b20. Inventory SHA-256: 6286e3cddb9d85f3a535dc692cd8d1177f19c502a153afe55d68c1b6c35b3849.
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.