Purple Belt Blocks You must first complete Introduction to CMK Intermediate before viewing this Lesson In this lesson you learn the gwonbeop required for purple belt (4th geup). These technique are: Circle step block (outside)Circle step block vs. 2 persons Lesson tags: blocks, gwonbeop, purple belt Blue Belt Strikes Intermediate Strikes Test Back to: 02. Chongmukwan Intermediate > Strikes and blocks