2014-6-26 · Winning Patterns Characteristics. CONCEALED 門清 - Tile sets that have not been PENG or CHI or KANG are considered to be concealed tiles. If all tiles of a winning hand are concealed, it is worth 1 FAN. (FAN is the unit used in Mahjong). HEAVEN'S HU 天胡 - If you win on the first tile you draw, you get 64 FAN. EARTH'S HU 地胡 - If you win on the first tile the dealer discarded, you get ...