Hi, I'm new on CC and relatively noob in the Game.
Welcome to Carcassonne Central
If you have a city or road with the builder in play and other player puts a tile on it (for example for finish a city with trade goods), can you take the advantage of double turn?
No. You can only take the double turn when you extend the road or city containing your builder. Hope this helps.
This is from the CAR:
"Effect: Whenever the player places a tile that extends the road or city which includes their builder,
they may take a double turn. This means that, after performing the usual steps of deployment
and scoring, the player draws another land tile, places it appropriately, and may then deploy
another follower and carry out any necessary scoring. The player’s turn is then over."
