While there are at least five versions of Chen Taiji, three are the most widely established. The most enduring versions are attributed to Chen Chanxing (Yang Lu Chan’s Taiji teacher) and Chen Fake, the famed Chen family grandmaster from the middle of the last century – known today as the Lao Jia or “Old Frame”, which exhibits the long, flowing technique characteristic of Northern Chinese boxing and Xin Jia or “New Frame” which exhibits an overt display of the crucial, chan szu jing or “silk reeling” energy unique to Chen Taiji. The third, Xiao Jia or “Small Frame” style, is an early version that features more compact movements and is gaining in popularity. Regardless of style, each version of Chen Taiji adheres to the original concepts of chan szu jin and “dantien” (lower abdominal) control. As such, all three versions of Chen Taiji exhibit the style’s unique and health-giving, twining/coiling movement and execution of power-issuing or “fa jing”, with sophisticated fighting techniques anchored to structurally sound, powerfully rooted stances.