anchor.diff:          specified game_id not found
   
   
  -## Play the Game [/play/{game_id}{?player_id}]
  +## Cancelling a Game [/game/cancel/{game_id}]
  +
  +### Cancel a Game by ID [GET]
  +
  +Remove a game that's in progress
  +
  +> completed games cannot be removed
  +
  +
  ++ Parameters
  +    + game_id (required, number) - unique ID for the game
  +
  +
  ++ Response 200 (application/json)
  +
  +        { 
  +            "game_id": '42',
  +            "winner_id": 'None',
  +            "winner_name": 'None'
  +        }
  +
  ++ Response 400 (text/plain)
  +
  +        specified game_id not found
  +
  ++ Response 403 (text/plain)
  +
  +        that game is finished and cannot be modified
  +
  +
  +## Playing the Game [/game/play/{game_id}{?player_id}]
   
   Make a move or check the current game state
   
  
positive.code: 
          player_id was invalid for the provided game
          
  + Response 402 (text/plain)
  
          This game has ended
  
  ### Play a Card [POST]
  Choose a card value to play from your hand
  
negative.code:         
      
      
  ## Starting a Game [/game/new]
  
  Start a fight, optionally challenge an opponent
  > If no opponent is defined, they may be challenged later by visiting your game URL
  