Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.129 wins per game over 64 seeds (95% interval +0.029 to +0.228).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 21339250-46ad-49ec-ae7e-b2580dabcfed
Status: completed. Experiment: 8e88ecc7-03f7-48a8-9b53-4a94605a3289. 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,"endgame":{"race":true}} | 121 | 256 | 47.3% | 41.2%–53.4% | 8.32 | 197.9 ms |
1 / v2:{"depth":2} | 88 | 256 | 34.4% | 28.8%–40.4% | 7.41 | 181.2 ms |
2 / eta | 30 | 256 | 11.7% | 8.3%–16.2% | 6.85 | 0.2 ms |
3 / fast | 17 | 256 | 6.6% | 4.2%–10.4% | 6.30 | 0.2 ms |
Paired contrast slot 0 minus slot 1: +0.129 wins per game over 64 seeds (95% interval +0.029 to +0.228).
Manifest SHA-256: ef638a85f86c415bb00ae14bebad58e2efa5a0d8a6842ad599cbe65ba1f36050. Inventory SHA-256: 4bc3ec94207b82a89e4f12d2ea1b6a3c5c6f75d4c275b6afd88712f714aad00e.
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.