{
  "type": "minecraft:jigsaw",
  "biomes": "#minecraft:has_structure/trial_chambers",
  "step": "underground_decoration",
  "spawn_overrides": {},
  "terrain_adaptation": "encapsulate",
  "start_pool": "vb:chamber_ruins",
  "size": 1,
  "start_height": {
    "type": "minecraft:uniform",
    "max_inclusive": {
      "absolute": -20
    },
    "min_inclusive": {
      "absolute": -40
    }
  },
  "max_distance_from_center": 80,
  "use_expansion_hack": false
}