China Manned Space released a video of Shenzhou-13 astronaut Ye Guangfu playing a traditional Chinese puzzle game in the space station on November 15. In the video, Ye, one of the three astronauts of the Shenzhou-13 crew, played Klotski, a sliding block puzzle that uses long-term strategies to move a specific block to a predetermined position. The Shenzhou-13 mission crew, Zhai Zhigang, Wang Yaping, and Ye Guangfu, were sent into space on October 16 by a Long March 2F carrier rocket. They are scheduled to undertake a six-month journey inside the country's space station, fulfilling the nation's longest space mission so far.