The difficulty of Huanggang secret volume belongs to the high difficulty level. Huanggang Secret Volume is a set of high school textbooks jointly compiled by educational experts and famous teachers, and it is a systematic, comprehensive and authoritative examination counseling material. It is difficult, covering all kinds of questions and knowledge points in the college entrance examination, and can improve students' ability to take exams and test scores. Therefore, Huanggang cheats are considered as one of the difficult reference materials for preparing for the college entrance examination.