{
  "entities": [
    {
      "name": "mainGrid",
      "entityType": "Grid",
      "width": 3,
      "height": 3
    }
  ],
  "numPlayers": 2,
  "moves": {
    "placePlayerMarker": {
      "moveType": "PlaceNew",
      "entity": {
        "conditions": "isCurrentPlayer"
      },
      "arguments": {
        "destination": {
          "conditions": [
            { "entityType": "Space" },
            "isEmpty"
          ],
          "playerChoice": true
        }
      }
    }
  },
  "endIf": [
    {
      "conditions": [{
        "conditionType": "HasLine",
        "target": "mainGrid",
        "sequence": [
          {
            "minCount": 3,
            "conditions": [{
              "conditionType": "ContainsSame",
              "properties": ["player"]
            }]
          }
        ]
      }],
      "result": { "winner": "ownerOfFirstResultEntity" }
    },
    {
      "conditions": [{
        "conditionType": "IsFull",
        "target": "mainGrid"
      }],
      "result": { "draw": true }
    }
  ]
}