The difference between Chen Taiji's eighty-three and seventy-three styles.

Type 83 is a new frame, and most of the movements are actual combat. Model 73 or 74 is an old rack, which is older than the new one, so the health care is similar. If you want to keep in good health, it is basically the same to practice. If you want to practice actual combat, you should first practice standing piles, single style, learn to relax, push hands and integrate. The old frame, that is, type 73, is a kung fu frame, and it is soft and vigorous. The old frame is made of a gun and hammer, and the new frame is 83, which is both rigid and flexible. Tai Ji Chuan's theory can't be separated from his ancestors, and routines are just fixed moves left by his ancestors. If you understand the theory of boxing, you don't need any moves, you can create a fist by yourself.