Engine arena run: completed

Paired contrast slot 0 minus slot 1: -0.008 wins per game over 64 seeds (95% interval -0.119 to +0.103).

Planned: 256
Attempted: 256
Completed: 256
Incomplete: 0
Unplayed: 0

Full retained record and provenance

Run d828c9b6-e8e6-45bc-8ae8-08a9f7b80b26

Status: completed. Experiment: fb7327b6-8b65-44f0-bbb0-6ed513c1ab20. 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,"leaf":{"tables":"/home/keshav/settlers/res...`	118	256	46.1%	40.1%–52.2%	7.76	598.4 ms
1 / `v2:{"depth":2,"leaf":{"tables":"/home/keshav/settlers/res...`	120	256	46.9%	40.9%–53.0%	7.77	824.2 ms
2 / `eta`	9	256	3.5%	1.9%–6.5%	6.26	0.4 ms
3 / `fast`	9	256	3.5%	1.9%–6.5%	6.00	0.4 ms

Paired contrast slot 0 minus slot 1: -0.008 wins per game over 64 seeds (95% interval -0.119 to +0.103).

Manifest SHA-256: e9b4e5124e348decc298143a70e91bce1d9fe8525997752dd5d8fb9fe0021c14. Inventory SHA-256: 658c5db786e9a49bf21105beca0f408083cc8955c786302a6c69907d487bba94.

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.