What is the third running script in the world

The third running script in the world is Huangzhou Cold Food Poetry Post

Huangzhou Cold Food Poetry Post, with 25 lines and 129 words, which is the representative work of Su Shi's running script. This is a poem sent to revive, and it is a sigh of life caused by the Cold Food Festival in the third year of Su Shi's demotion to Huangzhou. The poem is desolate and affectionate, expressing Su Shi's melancholy and lonely mood at this time. It is in this mood and situation that the calligraphy of this poem comes out. The whole calligraphy is full of ups and downs, radiant and unrestrained, and there is no shortage of pens. Huangzhou Cold Food Poetry Post has a great influence in the history of calligraphy, which is called "the third running script in the world" and is also the best among Su Shi's calligraphy works. As Huang Tingjian wrote after this poem: "This book is also written by Yan Lugong, Yang Shaoshi and Li Xitai, and it is not necessarily the same as this to try to restore Dongpo.