All Threes Domino

Launch by selecting 7 domino tiles each for a two-player game. Put the first tile on the board to initiate the domino chain. Alternate adding tiles to either end of the chain, checking that the matching numbers connect. Earn points by forming multiples of 3 at the ends of the chain. Determine your score by totaling the numbers on the ends of the domino chain after each move. Continue playing until one player exhausts of tiles or no more moves are possible. The player with the highest score at the end claims victory.