If you can not legally play a domino, you have lost. If your five dominoes have been played, draw five new ones. Doubles are placed crosswise as usual. The end The game is won when you succeed in playing all dominoes. Small variations You can play this game with larger sets such as the double-nine or double twelve set.
Larger sets are harder, and the larger the set the harder the game.
To compensate this slightly, deal yourself 7 dominoes when using the double nine game and 9 dominoes when using the double twelve set. That gives you more freedom in deciding which dominoes to play.