Competitions · China
Cube of Prime Numbers 2015
Guangzhou, Guangdong · 2 May 2015 · 10 events · 77 competitors · 94 personal bests
Kaijun Lin (林恺俊) won three of the ten events (3×3 blindfolded, 5×5 blindfolded, 3×3 Multi-Blind) and the closest final was the 3×3, won by Kailong Li (李开隆) by 0.25 seconds. 77 competitors produced 94 personal bests, 28 of which still stand today, and ten people held a competitor card for the first time.
The moment
A national record
Kaijun Lin (林恺俊) set the 5×5 blindfolded single national record: 8:51.52.
Winners & podiums
| Event | Winner | Single | Average |
|---|---|---|---|
| 3×3 | Kailong Li (李开隆) | 9.42 | 9.93 |
| 2×2 | Zhiyang Chen (陈至扬) | 2.12 | 3.03 |
| 5×5 | Kailong Li (李开隆) | 1:04.41 | 1:11.94 |
| 7×7 | Shenchuan Mao (毛神川) | 2:56.26 | 3:01.26 |
| 3×3 blindfolded | Kaijun Lin (林恺俊) | 26.81 | — |
| 3×3 Fewest Moves | Baiqiang Dong (董百强) | 26 moves | 28.67 |
| 3×3 one-handed | Ruohan Qiu (邱若寒) | 13.27 | 15.22 |
| 5×5 blindfolded | Kaijun Lin (林恺俊) | 8:51.52 | — |
| 3×3 Multi-Blind | Kaijun Lin (林恺俊) | 18 of 22 cubes · 53:47 | — |
| 3×3 with feet | Ruohan Qiu (邱若寒) | 47.06 | 50.51 |
The PB harvest
94 set · 28 still standing- Chun Lin (林春) — 3×3 blindfolded single 48.18: into the top 9.3% of the event's history.
- Zhenhui Huo (霍振辉) — 3×3 single 10.81: into the top 9.9% of the event's history.
- Qingbin Chen (陈庆斌) — 5×5 single 1:09.86: into the top 11.5% of the event's history.
- Song'en Chen (陈颂恩) — 3×3 single 12.24: into the top 14.7% of the event's history.
- Yi Tang (唐毅) — 3×3 single 12.27: into the top 14.8% of the event's history.
- Qingbin Chen (陈庆斌) — 3×3 Fewest Moves single 31 moves: into the top 17.4% of the event's history.
- Qianqian Shao (邵千芊) — 3×3 one-handed single 18.91: into the top 17.5% of the event's history.
- Qianqian Shao (邵千芊) — 5×5 single 1:19.41: into the top 18.6% of the event's history.
First-timers
Ten people competed for the first time at this competition, joining the 12,291 people who made their debut in 2015. Start here explains what a first competition is like.
Records watch
4 regional records were set at this competition.
The field
77 competitors · 454 results · 10 events.
Solve this final yourself
how this works →The 3×3 final here ran on one scramble group, so these five sequences are exactly what the finalists faced. Kailong Li (李开隆) won it with a 9.93 average. Hold your cube white centre up, green centre facing you, follow each sequence, and check against the pictures.
- 1
F L2 F' U2 L2 F2 L2 B' D2 L D' B2 R' U F2 L' B U' L2 - 2
B U' L' B2 R2 U2 R' F' B' R D' R D2 F2 R L' - 3
B2 F2 U L2 U' B2 F2 U' B2 L' R2 D' B F' L2 U L' R U2 - 4
U2 F2 U2 R2 D F2 U' F2 D R B2 L B D R D2 F' L' D2 F' - 5
B2 U L2 D' L2 B2 R2 D' F R2 D' U' F' D2 L' U2 L2 R2 U' R
solve 1
solve 2
solve 3
solve 4
solve 5
Race this final
Everyone who competed
77 competitors- Baiqiang Dong (董百强)
- Bo Huang (黄镈)
- Changming Hong (洪常铭)
- Chun Lin (林春)
- Difei Chen (陈迪菲)
- Elliott Vincent
- Enxi Xie (谢恩希)
- Geng Xie (谢耿)
- Haijie Zhang (张海杰)
- Haijun Tan (谭海俊)
- Haoqian Yi (易皓谦)
- Jiacheng Peng (彭家诚)
- Jici Liu (刘纪赐)
- Jinyue Wang (王瑾越)
- Juexuan Deng (邓觉轩)
- Junjie Chen (陈俊杰)
- Junlin Chen (陈俊霖)
- Junwei Zhao (赵俊威)
- Kaijun Lin (林恺俊)
- Kailong Li (李开隆)
- Kaiyi Li (李铠驿)
- Kam Chor Kin (甘楚健)
- Kunqi Li (李坤锜)
- Li Gong (龚莉)
- Lincheng Cai (蔡林成)
- Lingchao Lu (卢凌超)
- Liu Hong (洪流)
- Lorenzo Vigani Poli
- Matis Vincent
- Ming Zheng (郑鸣)
- Mingwei Fu (付鸣威)
- Mingyang Xie (谢铭扬)
- Mo Ji (季默)
- Mok Man Kit (莫文傑)
- Peiyan Li (利沛焰)
- Qianqian Shao (邵千芊)
- Qijun Miao (缪其隽)
- Qingbin Chen (陈庆斌)
- Rui Zhang (张锐)
- Ruohan Qiu (邱若寒)
- Shenchuan Mao (毛神川)
- Shicheng Qiu (丘仕铖)
- Shujuan Luo (罗淑娟)
- Song'en Chen (陈颂恩)
- Thomas Hafner
- Tong Sun (孙桐)
- Weixing Zhang (张炜星)
- Wenshun Zhou (周文舜)
- Xiaoer Hu (胡骁尔)
- Xiaolan Shi (石晓兰)
- Xiaoliang Yang (杨晓亮)
- Xiaoxin Chen (陈晓心)
- Xingyu Chen (陈星宇)
- Xuesi Chen (陈学思)
- Xusheng Hong (洪旭升)
- Xuyang Zhang (张煦阳)
- Yankun Qiu (邱焱坤)
- Yaozong Liang (梁耀宗)
- Yi Tang (唐毅)
- Yifan Xiao (肖一凡)
- Yingguang Chen (陈映光)
- Yiquan Ling (凌艺全)
- Yongguang Wang (王永光)
- Yongjin Huang (黄永晋)
- Yuyang Zhen (甄禹扬)
- Zexi Wang (王泽希)
- Zhenhui Huo (霍振辉)
- Zhibo Yin (阴智博)
- Zhiyang Chen (陈至扬)
- Zhuo Deng (邓灼)
- Zhuojian Chen (陈卓坚)
- Zicong Weng (翁子聪)
- Zijian Zhang (张梓健)
- Zili Li (李梓力)
- Ziliang Ou (区梓樑)
- Ziyang Shao (邵梓洋)
- Ziyue Liao (廖梓跃)
Reading this page: a single is one solve's time · an average is the middle three of five solves, best and worst discarded · a PB is a personal best · a final is a competition's last round; its order decides the podium · a DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · every solve starts from a computer-generated scramble, the same for every competitor in a round.