rules to play dominoes

In some domino games, part of the score is obtained from the total number of pips at the ends of the line of play as the game progresses. If only one domino has been played, both ends of that domino are ends of the line of play. Thus, if a 5 5 tile is played, the count would be 10. If two dominoes have been played, the count depends on whether both tiles are with the line of play or one tile is with and the other tile is across the line of play. For example, if the 3 5 and 5 1 tiles are played, the count is 4 3+1. The matching halves of each of the two dominoes would be joined, end to end, with the open ends being 3 and 1. If the 3 5 and 5 5 tiles are played, the count is 13 3+5+5. The double tile, 5 5, would be played across the line of play, and both halves of the double would be considered ends of the line of play. Given the last example, if a tile is now played on the 5 5, assuming it is not a spinner, the 5 5 is no longer an end for the purpose of counting. See the example below. The line of play is 3 5, 5 5, 5 1, and the count is 4 3+1. If the 5 5 is not a spinner in this case, the 5 5 is not an end. In some domino games, a score is made only when the count of the ends of the line of play are a multiple of 5 or a multiple of 3, for example. Another scoring method used in many domino games is to take the losing players total number of pips by counting the pips on the tiles left in their hands at the end of a hand or the game and then adding that number to the winners score. Here is a rule variation that players may agree to employ When counting the pips on the tiles left in the losers hands at the end of a hand or the game, count only one end of a double i.e., 4 4 counts as only 4 points.