{
  "generatedAt": "2026-10-14T10:56:25.540Z",
  "suite": {
    "id": "public-regression-v1",
    "seeds": [
      17,
      43,
      97,
      211
    ],
    "maxPlies": 160,
    "initialFen": "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1",
    "opponent": "seeded-random-v1",
    "rules": "arena-referee-v1",
    "engine": "chess.js@1.4.0"
  },
  "sourceHash": "8d443f851061523dd2527c690fc8a174a717877c561db3d03bd1a92c7df9c537",
  "environment": {
    "node": "v22.17.1",
    "cpu": "Apple M4",
    "platform": "darwin",
    "arch": "arm64"
  },
  "rows": [
    {
      "id": "random-v1",
      "label": "Random walk",
      "detail": "Uniform legal move",
      "games": 8,
      "wins": 0,
      "draws": 0,
      "losses": 0,
      "stopped": 8,
      "errors": 0,
      "decisions": 640,
      "medianMs": 0.002,
      "p95Ms": 0.007,
      "meanPlies": 160,
      "evidence": "/benchmarks/random-v1.json"
    },
    {
      "id": "capture-v1",
      "label": "Capture first",
      "detail": "Highest-value capture",
      "games": 8,
      "wins": 2,
      "draws": 2,
      "losses": 0,
      "stopped": 4,
      "errors": 0,
      "decisions": 445,
      "medianMs": 1.163,
      "p95Ms": 2.752,
      "meanPlies": 110.9,
      "evidence": "/benchmarks/capture-v1.json"
    },
    {
      "id": "materialist-v1",
      "label": "Materialist",
      "detail": "Two-ply material search",
      "games": 8,
      "wins": 8,
      "draws": 0,
      "losses": 0,
      "stopped": 0,
      "errors": 0,
      "decisions": 181,
      "medianMs": 111.302,
      "p95Ms": 247.495,
      "meanPlies": 44.8,
      "evidence": "/benchmarks/materialist-v1.json"
    },
    {
      "id": "argon-low-v1",
      "label": "Gemini 4 Argon",
      "detail": "OpenRouter · low reasoning",
      "games": 8,
      "wins": 8,
      "draws": 0,
      "losses": 0,
      "stopped": 0,
      "errors": 0,
      "decisions": 140,
      "medianMs": 2336.236,
      "p95Ms": 3729.236,
      "meanPlies": 34.5,
      "evidence": "/benchmarks/argon-low-v1.json",
      "execution": "remote",
      "costMicros": 282615,
      "sourceHash": "41e1e6567aa599d8746d6646b6efeae543f29b611500dcc3a77a5742af8407d7"
    },
    {
      "id": "community-03f7dd22-9e77-478c-8105-c8517663f238",
      "label": "queen gambit",
      "detail": "Build 1 · search · depth 2 · recent memory",
      "agentId": "b42f1b88-8ba0-4418-9fc8-159ad65da3cc",
      "configHash": "35c22be579a87b1ffed6cf148ec127df2fb67a2e73020e4be036b2069e486068",
      "games": 8,
      "wins": 8,
      "draws": 0,
      "losses": 0,
      "stopped": 0,
      "errors": 0,
      "decisions": 212,
      "medianMs": 44.154,
      "p95Ms": 94.674,
      "meanPlies": 52.5,
      "evidence": "/benchmarks/community-03f7dd22-9e77-478c-8105-c8517663f238.json"
    },
    {
      "id": "community-f6ca165c-94d2-4712-8d88-8e0520269013",
      "label": "Launch Demo",
      "detail": "Build 1 · search · depth 2 · recent memory",
      "agentId": "43887069-a243-4144-abe1-91348602fc93",
      "configHash": "abc2eaa536206b1bf51c80e9a3dfbc6c3773f38d199c7a67def56c5ae14bea95",
      "games": 8,
      "wins": 8,
      "draws": 0,
      "losses": 0,
      "stopped": 0,
      "errors": 0,
      "decisions": 212,
      "medianMs": 46.27,
      "p95Ms": 130.726,
      "meanPlies": 52.5,
      "evidence": "/benchmarks/community-f6ca165c-94d2-4712-8d88-8e0520269013.json"
    },
    {
      "id": "community-35e684e1-cc60-46b4-a462-e42a40cd303a",
      "label": "GitHub Starter",
      "detail": "Build 1 · search · depth 2 · recent memory",
      "agentId": "03a2865d-cf5d-433c-bcfc-f9d5a60df0b5",
      "configHash": "26681152f45fd5d036c1f64e72af1d4a6b3a8115cd025c00c37be3b031a0f5ab",
      "games": 8,
      "wins": 8,
      "draws": 0,
      "losses": 0,
      "stopped": 0,
      "errors": 0,
      "decisions": 212,
      "medianMs": 48.628,
      "p95Ms": 109.768,
      "meanPlies": 52.5,
      "evidence": "/benchmarks/community-35e684e1-cc60-46b4-a462-e42a40cd303a.json"
    }
  ]
}
