{
  "title": "The 20 convex grid candidates of area 8 and the 13 convex tangrams",
  "description": "All 20 convex polygons of area 8 made of 16 equal right isosceles triangles on the grid, with sides, side lengths, perimeter, narrowest width, symmetry order, whether the seven tangram pieces fill each one, and the number of grid fillings.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "Drawn Mathematics",
  "page": "https://drawnmathematics.com/puzzles/tangram/",
  "derived_from": [
    "The seven tangram pieces, each a union of equal right isosceles triangles with legs 1; no third-party data"
  ],
  "method": "Compiled by Drawn Mathematics from the data listed",
  "data_credit": [
    "Computed for this page from the definitions of the seven tangram pieces; the 20 candidates and the 13 tangram shapes agree with Fox-Epstein and Uehara, arXiv:1407.1923 (2014)"
  ]
}