Mahjong Yakuman I've Achieved So Far

Nine Gates (Kuren Poutou) A sequence of 1112345678999 using only one type of suit, plus any one additional tile. All Green (Rokuitsui) Composed solely of 2-sou, 3-sou, 4-sou, 6-sou, 8-sou, and Pungs of Hatsu. Big Four Winds (Daisūshii) Forming Pungs of four types of wind tiles. Big Three Dragons (Daisangen) Forming Pungs of all three dragon tiles. Four Concealed Pungs (Shuukan Pung) Four Pungs. Little Three Dragons (Shousangen) Forming two Pungs and one pair from three types of dragon tiles. Four Concealed Kans (Sukantsu) Four Kans. All Honors (Jihai-iro) Composed entirely of honor tiles. Concealed Hand on First Draw (Chiihou) Declaring Tenpai on the first turn and winning with an opponent's discard in the same turn. Thirteen Orphans (Kokushi Musou) is also one of the easier Yakuman, but other Yakuman are so much more appealing that it usually gets pushed down the ranking. The same goes for Chinitsu-type hands. Now... I guess I have to try for them...