Records

Baseline arena: greedy against random

Registration 9aa52df6-f9fe-47f5-beab-760ab04c2008 (study baselines/baseline-arena), run 2026-09-18 on AMD Ryzen AI Max (Strix Halo), 32 threads, 125 GB unified memory, Radeon 8060S via ROCm, Linux 6.18. Server commit 7a66da0, research commit a000925 (registration files as committed; this record added afterwards).

Commands:

cd server && cargo run --release -p armies-arena --bin matchup -- --red greedy --blue random --games 200 --seed 0 --rules training --threads 32 --out ../research/runs/9aa52df6-f9fe-47f5-beab-760ab04c2008/greedy-vs-random.json
cd server && cargo run --release -p armies-arena --bin matchup -- --red random --blue random --games 200 --seed 0 --rules training --threads 32 --out ../research/runs/9aa52df6-f9fe-47f5-beab-760ab04c2008/random-vs-random.json

Greedy against random

PlayerWinsDrawsLossesEffective95% WilsonMean pliesms/move
greedy1801190.9020.854 to 0.9362190.001
random1911800.0980.064 to 0.1462190.000
ending: flag_captured190
ending: no_moves9
ending: quiet_limit1

Per-seed paired contrast for greedy: mean 0.805, 95% normal interval 0.706 to 0.904 over 100 seeds (86 positive, 9 split, 5 negative). Wall time 0.0 s.

Random against random (companion)

PlayerWinsDrawsLossesEffective95% WilsonMean pliesms/move
random4696580.4700.402 to 0.5395690.000
random#25896460.5300.461 to 0.5985690.000
ending: flag_captured98
ending: no_moves6
ending: quiet_limit96

Per-seed contrast for the first random: mean -0.060, 95% interval -0.176 to 0.056. Wall time 0.0 s.

Provenance

Archived JSON: runs/9aa52df6-f9fe-47f5-beab-760ab04c2008/greedy-vs-random.json (SHA-256 2f70f9e51914efc2eab505826ed1244db905c9cfa9682fcc28328cf0ba6efebe) and runs/9aa52df6-f9fe-47f5-beab-760ab04c2008/random-vs-random.json (SHA-256 caabc62f668a985f0c20bcbd059b8b17888b31439577afe121aba369b0d3ca1a); copies next to this record. Games planned 200 + 200, attempted 400, completed 400, interrupted 0. --seed 0 --games 200 plays seeds 0 to 99 twice each with the seats swapped, as registered. No deviation.