People · China
Cheng Chen (陈成)
Pyraminx · top 5.7% of 129,321 all-time · competing since August 2010 · 2010CHEN40
Cheng Chen (陈成) has been competing for 16 years. His best event is the Pyraminx: a personal-best single of 3.55, set at Hefei Summer 2012, puts him in the top 5.7% of the 129,321 people who have ever been ranked in the event, and 670th in China. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 15 competitions since August 2010, he has put 187 official solves on the record across five events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 73% of the 35,811 competitors with ten or more counted rounds. His Square-1 best has come down from 16.16 in August 2010 to 10.66, a 34% improvement. Cheng has entered 15 competitions, more competitions than 95% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| Pyraminx | 3.55 | 8.61 | top 5.7% | 670 / 10,224 | |
| Square-1 | 10.66 | 13.46 | top 7.3% | 100 / 1,362 | |
| 3×3 | 13.34 | 15.35 | top 18.6% | 7,255 / 28,153 | |
| 3×3 one-handed | 29.67 | 35.19 | top 45.9% | 4,072 / 5,922 | |
| 3×3 blindfolded | 3:44.86 | — | early days — 2 solves | 892 / 1,183 |
Percentile against all competitors ever ranked in each event, a fairer measure than raw rank, because the pools differ by a factor of ten.
The line so far
Best single per competition, Square-1. Faster is higher — the axis is the right way up.
The story so far
- 5 Aug 2012First sub-15 3×3: 13.47 at Hefei Summer 2012.
- 5 Aug 2012Three personal bests in one day at Hefei Summer 2012.
- 14 Aug 2010First competition: Shanghai Open 2010.
Competitions
- Jinhua Open 2016 · 6 Aug 2016 — 1 personal best set
- Big Cubes Challenge 2016 · 27 Feb 2016
- Twisting Fingers in New Taipei City 2015 · 22 Aug 2015 — 1 personal best set
- Cross-strait Cubing Exchange 2015 · 15 Aug 2015
- Hsinchu Spring Open 2015 · 31 May 2015
- Show Off Quickness 2015 · 10 May 2015 — 1 personal best set
- Hsinchu Winter Open 2014 · 14 Dec 2014 — 1 personal best set
- Master Challenge 2014 · 28 Sep 2014 — 1 personal best set
- Cross-strait Cubing Exchange 2014 · 9 Aug 2014
- Nantong Open 2014 · 19 Jul 2014
- Zhejiang University 2013 · 23 Mar 2013 — 1 personal best set
- Hefei Summer 2012 · 5 Aug 2012 — 3 personal bests set
- Shanghai Summer 2012 · 21 Jul 2012 — 1 personal best set
- Hangzhou Open 2011 · 20 Aug 2011 — 1 personal best set
- Shanghai Open 2010 · 14 Aug 2010
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 DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · top X% compares against everyone ever ranked in that event, which is fairer than raw rank because event pools differ tenfold.
The circuit
The people whose scorecards keep turning up next to his.
- Tzu-Han Hung (洪梓菡) — met in 22 rounds, finished ahead 15 times
- Hung Lo (羅鴻) — met in 20 rounds, finished ahead 8 times
- Yi-Fan Wu (吳亦凡) — met in 20 rounds, finished ahead 8 times
Next targets
- A sub-3 Pyraminx single — 4,700 people have one; it is 0.55 away.
- A sub-10 Square-1 single — 1,533 people have one; it is 0.66 away.
Targets move as he improves.