Divinorum Conquest.
The board game of the wizards.
The one being displayed was a recording of the divine realm that the Young Prince and the previous Chief Advisor had a match on.
The divine realm and the board on which it was being repeated, were both extremely small in size as they had to be adjusted between Arthur and Eldorin, while the two were in a carriage.
Even though the carriage was a big one, with luxurious seats and the designed windows, the space inside it wasn't enough.
The game of Divinorum Conquest that was played between Nomlos and Khan, was on a board that covered a vast hall.
Arthur was interestingly watching the game, as one side of the board, the divine realm looked almost devoid any existence.
Not to mention the mortals, even the Gods had been annihilated to almost the last one.