People · China
Chengbiao Liu (刘承彪)
2×2 · top 3.2% of 186,767 all-time · competing since May 2010 · 2010LIUC01
Chengbiao Liu (刘承彪) has been competing for 16 years. His best event is the 2×2: a personal-best single of 1.72, set at Tianjin Winter 2012, puts him in the top 3.2% of the 186,767 people who have ever been ranked in the event, and 406th in China. Until February 2008, no official 2×2 solve in the world had been that fast. Across 13 competitions since May 2010, he has put 281 official solves on the record across four events. Solve to solve, his 3×3 times vary about 13% around a typical one; 54% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 11.46 in May 2010 to 8.72, a 24% improvement. Chengbiao has entered 13 competitions, more competitions than 94% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| 2×2 | 1.72 | 4.77 | top 3.2% | 406 / 15,796 | |
| 3×3 | 8.72 | 11.44 | top 4.2% | 1,610 / 28,153 | |
| 3×3 one-handed | 24.20 | 30.23 | top 32.0% | 3,093 / 5,922 | |
| 4×4 | 1:04.88 | 1:16.32 | top 41.6% | 3,985 / 5,926 |
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, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 31 Jul 2011First sub-10 3×3: 8.72 at Beijing Summer Open 2011.
- 23 Apr 2011Three personal bests in one day at Beijing Spring 2011.
- 9 May 2010First competition: Alpha Cube BUAA Open 2010. A 15.68 3×3 single to start from.
- 9 May 2010First sub-15 3×3: 13.06 at Alpha Cube BUAA Open 2010.
Competitions
- TUT 2013 · 17 Nov 2013
- BUAA Open 2013 · 12 May 2013
- Tianjin Winter 2012 · 23 Dec 2012 — 1 personal best set
- Beijing Winter 2012 · 24 Nov 2012
- Beijing Summer 2012 · 12 Aug 2012
- China Tourism Day 2012 · 19 May 2012 — 2 personal bests set
- Hot Spring Festival 2012 · 18 Feb 2012
- Human Rights Day 2011 · 10 Dec 2011 — 1 personal best set
- World Rubik's Cube Championship 2011 · 14 Oct 2011
- Beijing Summer Open 2011 · 31 Jul 2011 — 2 personal bests set
- Beijing Spring 2011 · 23 Apr 2011 — 3 personal bests set
- Beijing Winter 2011 · 15 Jan 2011
- Alpha Cube BUAA Open 2010 · 9 May 2010 — 2 personal bests set
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.
- Liping Jia (贾立平) — met in 38 rounds, finished ahead 25 times
- Hongye Sun (孙虹烨) — met in 38 rounds, finished ahead 23 times
- Yuxuan Wang (王宇轩) — met in 34 rounds, finished ahead 12 times
Next targets
- A sub-1 2×2 single — 1,032 people have one; it is 0.72 away.
- A sub-8 3×3 single — 7,931 people have one; it is 0.72 away.
Targets move as he improves.