Yangzhou Rubik's Cube Teenager Open 2016 Announcement and Registration 2016-12-04 23:42 Baiqiang Dong Yangzhou Rubik's Cube Teenager Open 2016 will take place on Dec. 18 in Yangzhou, Jiangsu. The online registration will be open on Dec.5 00:00. Please check out the competition website for more information and registration.