People · China
Kai Liu (刘恺)
2×2 · top 4.4% of 186,767 all-time · competing since February 2009 · 2009LIUK01
Kai Liu (刘恺) has been competing for 18 years. His best event is the 2×2: a personal-best single of 1.94, set at Shanghai Open 2010, puts him in the top 4.4% of the 186,767 people who have ever been ranked in the event, and 587th in China. Until February 2008, no official 2×2 solve in the world had been that fast. Across 14 competitions since February 2009, he has put 556 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 69% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 21.75 in February 2009 to 9.06, a 58% improvement. Kai has entered 14 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 | |
|---|---|---|---|---|---|
| 2×2 | 1.94 | 4.77 | top 4.4% | 587 / 15,796 | |
| 3×3 | 9.06 | 12.03 | top 5.0% | 1,909 / 28,153 | |
| 4×4 | 38.92 | 44.69 | top 10.9% | 1,154 / 5,926 | |
| 7×7 | 3:06.95 | 3:13.71 | top 12.4% | 245 / 1,261 | |
| 5×5 | 1:11.43 | 1:20.37 | top 12.6% | 620 / 2,816 | |
| 6×6 | 2:12.00 | 2:18.54 | top 16.3% | 362 / 1,349 | |
| 3×3 Fewest Moves | 35 moves | — | early days — 2 solves | 322 / 1,058 | |
| Pyraminx | 7.31 | 10.70 | top 30.4% | 3,352 / 10,224 | |
| Megaminx | 1:49.40 | 1:55.57 | top 40.0% | 1,145 / 1,678 | |
| 3×3 one-handed | 27.49 | 30.32 | top 40.6% | 3,727 / 5,922 | |
| Square-1 | 30.16 | 39.66 | top 49.7% | 855 / 1,362 | |
| 3×3 blindfolded | 3:20.86 | — | early days — 1 solve | 809 / 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, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 16 Feb 2019Three personal bests in one day at Manchester Open 2019.
- 19 Jan 2019Three personal bests in one day at Berlin Winter Cubing 2019.
- 26 Oct 2018Four personal bests in one day at UK Championship 2018.
- 1 Oct 2016First sub-10 3×3: 9.06 at Asian Championship 2016.
- 1 Oct 2016Six personal bests in one day at Asian Championship 2016.
- 20 Aug 2011Six personal bests in one day at Hangzhou Open 2011.
Competitions
- Cube Weekend Sint Michielsgestel 2019 · 22 Mar 2019 — 1 personal best set
- Manchester Open 2019 · 16 Feb 2019 — 3 personal bests set
- Berlin Winter Cubing 2019 · 19 Jan 2019 — 3 personal bests set
- UK Championship 2018 · 26 Oct 2018 — 4 personal bests set
- Asian Championship 2016 · 1 Oct 2016 — 6 personal bests set
- Hangzhou Open 2011 · 20 Aug 2011 — 6 personal bests set
- Shanghai Open 2010 · 14 Aug 2010 — 2 personal bests set
- Inner Mongolia 2010 · 24 Jul 2010 — 7 personal bests set
- Shanghai Winter Cubing Festival 2010 · 7 Feb 2010 — 2 personal bests set
- Hangzhou Open 2010 · 31 Jan 2010 — 6 personal bests set
- Beijing Summer Open 2009 · 16 Aug 2009 — 5 personal bests set
- Xi'an Open 2009 · 28 Jun 2009 — 4 personal bests set
- Beijing Metropolis Open 2009 · 2 May 2009 — 3 personal bests set
- Beijing Spring Open 2009 · 21 Feb 2009
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.
- Yinghao Wang (王鹰豪) — met in 42 rounds, finished ahead 13 times
- Jiajun Li (李嘉俊) — met in 35 rounds, finished ahead 23 times
- Ming Zheng (郑鸣) — met in 33 rounds, finished ahead 16 times
Next targets
- A sub-1 2×2 single — 1,032 people have one; it is 0.94 away.
- A sub-8 3×3 single — 7,931 people have one; it is 1.06 away.
Targets move as he improves.