Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.074 wins per game over 64 seeds (95% interval -0.013 to +0.161).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 8bacdaf4-8be4-47ea-93df-c0e26156f94d
Status: completed. Experiment: 80e8871e-a41f-4af4-9abd-c5d148c6b729. 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} | 113 | 256 | 44.1% | 38.2%–50.3% | 7.89 | 88.0 ms |
1 / v2:{"depth":2,"endgame":{"race":true}} | 94 | 256 | 36.7% | 31.1%–42.8% | 7.60 | 88.2 ms |
2 / eta | 30 | 256 | 11.7% | 8.3%–16.2% | 6.84 | 0.1 ms |
3 / fast | 19 | 256 | 7.4% | 4.8%–11.3% | 6.62 | 0.1 ms |
Paired contrast slot 0 minus slot 1: +0.074 wins per game over 64 seeds (95% interval -0.013 to +0.161).
Manifest SHA-256: 2f8f46c1bf7e399b19c9839f441419d3567f90ae07395c11480a0e1e176f8c5f. Inventory SHA-256: b3efbe88ba7d646bd67d9379ab28ce7c553d8d915cda6cf66500b4681b05aa3e.
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.