Competitions · China

Qingdao Prime Numbers 2017

Qingdao, Shandong · 26 March 2017 · 7 events · 103 competitors · 77 personal bests

Lin Chen (陈霖) won four of the seven events (3×3, 5×5, 7×7) and the closest final was the 2×2, won by Yunliang Zhang (张赟量) by 0.16 seconds. 103 competitors produced 77 personal bests, 15 of which still stand today, and 49 people held a competitor card for the first time.

The moment

The day's biggest improvement

Haoyu Zhao (赵浩宇) took a 2×2 single of 33.64 down to 14.07, 58 percent better in one day.

Four wins

Lin Chen (陈霖) — 3×3, 5×5, 7×7, 3×3 one-handed

0.16s

closest final — 2×2, Yunliang Zhang (张赟量) over Fazhen Wu (吴法臻)

personal bests set on the day

Winners & podiums

Event	Winner	Single	Average
3×3	Lin Chen (陈霖)	7.20	9.53
2×2	Yunliang Zhang (张赟量)	2.28	3.11
5×5	Lin Chen (陈霖)	1:05.48	1:09.98
7×7	Lin Chen (陈霖)	2:27.39	2:51.27
3×3 blindfolded	Bo Pang (逄博)	37.83	—
3×3 one-handed	Lin Chen (陈霖)	10.62	12.92
Megaminx	Yunliang Zhang (张赟量)	48.31	53.27

The PB harvest

77 set · 15 still standing

Xushun Wei (隗许舜) — 3×3 single 11.50: into the top 12.2% of the event's history.
Zhiyuan Zhang (张智渊) — Megaminx single 1:10.70: into the top 16.0% of the event's history.
Mingzhe Yuan (袁明哲) — 3×3 single 13.29: into the top 18.5% of the event's history.
Shenlin Xu (徐圣林) — 3×3 single 13.77: into the top 20.2% of the event's history.
Junwei Zhao (赵俊威) — 3×3 single 13.98: into the top 20.9% of the event's history.
Shuo Zhang (张朔) — 5×5 single 1:22.55: into the top 21.2% of the event's history.
Jinlin Dou (窦金麟) — Megaminx single 1:19.76: into the top 21.6% of the event's history.
Senyuan Zhang (张森源) — 3×3 single 15.05: into the top 24.6% of the event's history.

First-timers

49 people competed for the first time at this competition, joining the 23,482 people who made their debut in 2017. Start here explains what a first competition is like.

Records watch

No national, continental or world records were set at this competition. That is true of most competitions.

The field

103 competitors · 309 results · 7 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. Lin Chen (陈霖) won it with a 9.53 average. Hold your cube white centre up, green centre facing you, follow each sequence, and check against the pictures.

1L' D2 U2 R D2 R D2 F2 R B R2 U' F' R2 F2 D' B' R B F2
2L F2 U2 L' R' U2 L' B2 U' B' L2 R' D' B L' R2 F' D' F
3L F2 R B' U D' L2 U2 L' U' F B2 L' B2 L2 D2 F2 L' D2 L
4L2 D2 B' L' U2 F2 D R L U' L2 F B2 L2 U2 B' U2 F U2 B2
5U2 R2 B2 L2 U2 R2 U2 B2 F L B F' U' L' B' D2 R U' B D2

solve 1

solve 2

solve 3

solve 4

solve 5

Race this final

Everyone who competed

103 competitors

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.