{
  "state": "Tetris 10x20. Piece=L; next=T. Column heights=[3,2,2,1,2,0,1,1,1,3]; holes=0. r=clockwise rotation,c=left column (0-based). Facts: L=lines cleared,E=lines*piece cells cleared,A=landing height; R=row transitions,C=column transitions,H=holes after,W=well depth sum.",
  "question": {
    "type": "choice",
    "description": "Choose the placement to clear lines and keep playing.",
    "options": [
      {
        "id": "r0c6",
        "description": "r0c6: L0 E0 A2 R42 C20 H0 W4"
      },
      {
        "id": "r3c4",
        "description": "r3c4: L1 E1 A1.5 R44 C20 H0 W1"
      },
      {
        "id": "r2c5",
        "description": "r2c5: L1 E1 A1 R42 C20 H0 W2"
      },
      {
        "id": "r1c7",
        "description": "r1c7: L0 E0 A2.5 R46 C20 H0 W3"
      },
      {
        "id": "r1c1",
        "description": "r1c1: L0 E0 A3.5 R46 C20 H0 W5"
      }
    ]
  }
}