What Are Dragon Tiles in Mahjong?

Dragon tiles are honor tiles in three flavors: Red Dragon, Green Dragon, and White Dragon (also called Soap). There are 4 of each (12 total). On the NMJL card they're abbreviated R (Red), G (Green), and 0 (White/Soap).

Dragon tiles are a category of honor tiles in American Mahjong with three types: Red Dragons (R), Green Dragons (G), and White Dragons (0, pronounced Soap). Each dragon type has 4 tiles in a standard set, for 12 dragon tiles total. Many NMJL card hands pair dragons with matching-color suits: Red Dragons with Characters, Green Dragons with Bamboo, and White Dragons with Dots. Knowing how to identify and use these honor tiles is fundamental for reading the NMJL card and building winning hands.