Pai Gow is a gambling game played with Chinese dominoes. The set consists of all pairs of numbers from 1-1 to 6-6, with the following eleven tiles duplicated: 6-6, 6-5, 6-4, 6-1, 5-5, 5-1, 4-4, 3-3, 3-1, 2-2, 1-1. There are 32 tiles in all. Research Pai Gow