Engine arena run: completed

Paired contrast slot 0 minus slot 1: +0.070 wins per game over 64 seeds (95% interval -0.018 to +0.159).

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

Full retained record and provenance

Run 3a4f4e34-a565-46c4-abb0-5574f3d326b1

Status: completed. Experiment: 4094eeea-1266-4a75-bcf9-7b122821f697. 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...`	97	256	37.9%	32.2%–44.0%	7.09	62.5 ms
1 / `v2:{"depth":2,"leaf":{"tables":"/home/keshav/settlers/res...`	79	256	30.9%	25.5%–36.8%	6.64	65.0 ms
2 / `v2:{"depth":2,"leaf":{"tables":"/home/keshav/settlers/res...`	65	256	25.4%	20.4%–31.1%	6.59	61.7 ms
3 / `eta`	15	256	5.9%	3.6%–9.4%	5.88	0.1 ms

Paired contrast slot 0 minus slot 1: +0.070 wins per game over 64 seeds (95% interval -0.018 to +0.159).

Manifest SHA-256: e8146a30142204dfff0d929c267f835ef0418b672deb7ca1e3ffee0181c449df. Inventory SHA-256: 44e0ce9aa867167f35e5b5a5fcfee4d1534c2884409d9d9248bb1d933b7b078d.

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.