Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.043 wins per game over 64 seeds (95% interval -0.066 to +0.152).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 647d321b-b370-4abe-b50c-2300404474d7
Status: completed. Experiment: 0b22df5c-bcdf-40cd-923e-2e484dae499d. 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"... | 109 | 256 | 42.6% | 36.7%–48.7% | 7.95 | 199.1 ms |
1 / v2:{"depth":2,"samples":4,"scenarios":8,"inner_scenarios":4} | 98 | 256 | 38.3% | 32.5%–44.4% | 7.61 | 271.8 ms |
2 / eta | 30 | 256 | 11.7% | 8.3%–16.2% | 6.83 | 0.3 ms |
3 / fast | 19 | 256 | 7.4% | 4.8%–11.3% | 6.50 | 0.3 ms |
Paired contrast slot 0 minus slot 1: +0.043 wins per game over 64 seeds (95% interval -0.066 to +0.152).
Manifest SHA-256: 6229d2adb2886bfb717e6e085691c41d6dcf0b9dfa29d3fdf2549a09f69cc1f1. Inventory SHA-256: c4b1afaeeaa4c698f0ff3b1a757055ba4fb377aa0f2170f90cb0d70bd39882ed.
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.