All Threes Domino

Begin by selecting 7 domino tiles each for a two-player game. Set the first tile on the board to begin the domino chain. Take turns attaching tiles to either end of the chain, making sure that the same numbers touch. Earn points by creating multiples of 3 at the ends of the chain. Calculate your score by summing 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 player with the highest score at the end is the champion.