so i'm a ”former” karateka but still an enthusiast, the other day i looked up about the taikyoku katas(forms)partly because i forgotten the order of them and partly because the name taikyoku means - Taiji.
while googling i came upon this site http://www.taikyokuken.co.jp/english/taichi.html
which explain the origin of their Taijiquan/Taikyokuken 99 postures/steps form.(further down the linked page).....I've never heard this story before or of any such mixed 99 form, are there any other source of info on it ?