Engine arena run: completed
Paired contrast slot 0 minus slot 1: +0.066 wins per game over 64 seeds (95% interval -0.020 to +0.153).
- Planned
- 256
- Attempted
- 256
- Completed
- 256
- Incomplete
- 0
- Unplayed
- 0
Full retained record and provenance
Run 901f81f4-922e-4de7-8269-f78f342f362b
Status: completed. Experiment: 47486c2e-9555-4c4f-a444-7a0097dce271. 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,"spend_down":true} | 118 | 256 | 46.1% | 40.1%–52.2% | 8.16 | 366.8 ms |
1 / v2:{"depth":2} | 101 | 256 | 39.5% | 33.7%–45.6% | 7.72 | 250.6 ms |
2 / eta | 21 | 256 | 8.2% | 5.4%–12.2% | 6.79 | 0.3 ms |
3 / fast | 16 | 256 | 6.2% | 3.9%–9.9% | 6.37 | 0.3 ms |
Paired contrast slot 0 minus slot 1: +0.066 wins per game over 64 seeds (95% interval -0.020 to +0.153).
Manifest SHA-256: 4449ac68b96dbf271bf03acd7ca2b07140f111c8174aa415af3e38a2f515fce0. Inventory SHA-256: 29f0bc9caf02d08e6e39990c247ee7c51726633f85b99503a11bf28392f2803b.
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.