The goal of the game is to make the open ends of the layout add up to 5 (or a multiple of five – 5, 10, 15, 20, etc.). You can draw 10 times (or more) and at any time 1-7 tiles to make up your hand. The first double (1-1, 2-2, …, 6-6) is known as the spinner.
To this spinner next tile can be added vertically only and then next in parallel on both sides. The ends of the initial double do not count towards the point total once both sides of the tile have been played.
If there are no dominoes left you can go to the next level and receive 3 bonus draws tiles and 100 points!
