All Threes Domino

Launch by picking 7 domino tiles each for a two-player game. Set the first tile on the board to initiate the domino chain. Switch attaching tiles to either end of the chain, ensuring that the corresponding numbers connect. Earn points by making multiples of 3 at the ends of the chain. Calculate your score by adding the numbers on the ends of the domino chain after each move. Continue playing until one player has no more of tiles or no more moves are possible. The one with the highest score at the end is the champion.