Cube of Prime Numbers 2015

May 2 - 3, 2015
Guangzhou, Guangdong, China

Guangzhou Nanwu Secondary School

No. 81 Xingyuan Street, Jiangnanxi Rd., Haizhu District

Mulit-media classroom, F3, teaching building

Cube of Prime Numbers 2015 website
WCA Delegate
Ming Zheng (郑鸣)

Guangzhou Cubing Organizational Team


Only 2x2x2, 3x3x3, 5x5x5, & 7x7x7 can be solved in different ways at the solving station.

Main event
Registration requirements
This competition is over, click here to display the registration requirements it used.
Click here to display the highlights of the competition.

Kailong Li (李开隆) won with an average of 9.93 seconds in the 3x3x3 Cube event. Weixing Zhang (张炜星) finished second (10.18) and Kaijun Lin (林恺俊) finished third (10.41).

Event Name Best Average Citizen of Solves
3x3x3 Cube Kailong Li (李开隆) 9.42 9.93 China 9.7710.4511.509.589.42
2x2x2 Cube Zhiyang Chen (陈至扬) 2.12 3.03 China 3.552.352.123.194.65
5x5x5 Cube Kailong Li (李开隆) 1:04.41 1:11.94 China 1:11.431:04.411:11.861:12.521:12.96
7x7x7 Cube Shenchuan Mao (毛神川) 2:56.26 3:01.26 China 3:03.463:04.062:56.26
3x3x3 Blindfolded Kaijun Lin (林恺俊) 26.81 DNF China 27.0426.81DNF
3x3x3 Fewest Moves Baiqiang Dong (董百强) 26 28.67 NR China 332627
3x3x3 One-Handed Ruohan Qiu (邱若寒) 13.27 15.22 China 14.9313.3613.2719.1817.36
5x5x5 Blindfolded Kaijun Lin (林恺俊) 8:51.52 NR DNF China DNF8:51.52DNF
3x3x3 Multi-Blind Kaijun Lin (林恺俊) 18/22 53:47 China 18/22 53:4718/23 54:04
3x3x3 With Feet Ruohan Qiu (邱若寒) 47.06 50.51 China 47.0655.1249.35

Time limit

If you reach the time limit during your solve, the judge will stop you and your result will be DNF (see Regulation A1a4).


The format describes how to determine the ranking of competitors based on their results. The list of allowed formats per event is described in Regulation 9b. See Regulation 9f for a description of each format.