The Xinhai Revolution led to the founding of the Republic of China in January 1912 with Sun Yat-sen as the first provisional president and Nanking was selected as its new capital. However, the Qing Empire controlled large regions to the north, so revolutionaries asked Yuan Shikai to replace Sun as president in exchange for the abdication of Puyi, the Last Emperor. Yuan demanded the capital be Beijing (closer to his power base).
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who moved the capital from Nanjing to Beijing?
Yuan Shikai