Choose one of the two Scoring tiles and place it on a free Scoring board on the game board. You may also move a tile that is already on the game board to another one (but do not remove it from the game board).
This will change the points awarded during scoring. You can also place one tile on the Castillo to replace both Scoring boards there. You are not allowed to place a tile in the King’s region or take one from there.
In regions with such a Scoring tile, you still receive the King‘s and Grande’s bonuses.