People · Chinese Taipei
Chia-Cheng Liu (劉家成)
3×3 · top 5.9% of 284,439 all-time · competing since December 2012 · 2012LIUC04
Chia-Cheng Liu (劉家成) has been competing for 14 years. His best event is the 3×3: a personal-best single of 9.44, set at Hsinchu Winter Open 2014, puts him in the top 5.9% of the 284,439 people who have ever been ranked in the event, and 356th in Chinese Taipei. Until February 2008, no official 3×3 solve in the world had been that fast. Across 6 competitions since December 2012, he has put 183 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 17% around a typical one; 95% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 11.63 in December 2012 to 9.44, a 19% improvement. He has entered six competitions, more competitions than 86% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Chinese Taipei | |
|---|---|---|---|---|---|
| 3×3 | 9.44 | 11.84 | top 5.9% | 356 / 4,213 | |
| 4×4 | 43.56 | 50.46 | top 16.5% | 364 / 1,078 | |
| 2×2 | 3.26 | 3.88 | top 17.3% | 446 / 1,669 | |
| 3×3 one-handed | 19.61 | 25.33 | top 19.5% | 250 / 802 | |
| 3×3 blindfolded | 2:41.02 | — | top 46.7% | 68 / 147 | |
| 5×5 | 1:58.81 | 2:18.23 | top 48.5% | 458 / 639 | |
| Square-1 | 36.12 | 44.01 | top 60.1% | 227 / 323 | |
| Skewb | 11.51 | 14.58 | top 63.6% | 529 / 699 | |
| Pyraminx | 11.73 | 14.38 | top 65.5% | 748 / 1,016 |
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
- 14 Dec 2014First sub-10 3×3: 9.44 at Hsinchu Winter Open 2014.
- 14 Dec 2014Three personal bests in one day at Hsinchu Winter Open 2014.
- 29 Dec 2013Four personal bests in one day at Hsinchu Winter Open 2013.
- 30 Dec 2012First competition: Magic Revenge 2012. A 11.63 3×3 single to start from.
Competitions
- Hsinchu Summer Open 2025 · 17 Aug 2025 — 1 personal best set
- Taichung Cube Open 2016 · 1 May 2016 — 1 personal best set
- Hsinchu Winter Open 2014 · 14 Dec 2014 — 3 personal bests set
- Hsinchu Winter Open 2013 · 29 Dec 2013 — 4 personal bests set
- Taiwan Winter Open 2013 · 3 Mar 2013 — 2 personal bests set
- Magic Revenge 2012 · 30 Dec 2012 — 1 personal best 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.
- Yi-Fan Wu (吳亦凡) — met in 38 rounds, finished ahead twice
- Shao-Heng Hung (洪紹恆) — met in 30 rounds, finished ahead 7 times
- Chia-Liang Tai (戴嘉良) — met in 26 rounds, finished ahead 7 times
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 1.44 away.
- A sub-40 4×4 single — 10,180 people have one; it is 3.56 away.
Targets move as he improves.