People · Chinese Taipei
Chih-Kai Wu (吳之凱)
Megaminx · top 6.4% of 34,786 all-time · competing since February 2010 · 2010WUCH01
Chih-Kai Wu (吳之凱) has been competing for 17 years. His best event is the Megaminx: a personal-best single of 52.84, set at Taiwan Championship 2016, puts him in the top 6.4% of the 34,786 people who have ever been ranked in the event, and 37th in Chinese Taipei. Until April 2010, no official Megaminx solve in the world had been that fast. Across 12 competitions since February 2010, he has put 249 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 14% around a typical one; 73% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 14.50 in February 2010 to 10.50, a 28% improvement. He has entered twelve 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 | Chinese Taipei | |
|---|---|---|---|---|---|
| Megaminx | 52.84 | 1:01.87 | top 6.4% | 37 / 362 | |
| 3×3 | 10.50 | 12.48 | top 9.0% | 536 / 4,213 | |
| 3×3 one-handed | 15.96 | 21.51 | top 10.1% | 143 / 802 | |
| 5×5 | 1:23.13 | 1:31.46 | top 21.7% | 257 / 639 | |
| 4×4 | 50.25 | 1:00.91 | top 25.0% | 487 / 1,078 | |
| 2×2 | 5.75 | 6.60 | top 48.2% | 1,067 / 1,669 | |
| Clock | 17.58 | 24.70 | top 57.4% | 251 / 366 | |
| 7×7 | 6:02.19 | 6:12.30 | early days — 3 solves | 206 / 252 |
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
- 25 Aug 2012Five personal bests in one day at Taiwan Summer Open 2012.
- 12 Feb 2011Three personal bests in one day at Taiwan Winter Open 2011.
- 28 Aug 2010Three personal bests in one day at Taiwan Summer Open 2010.
- 6 Feb 2010First competition: Taiwan Winter Open 2010. A 14.50 3×3 single to start from.
Competitions
- Shin Kong Cube Open - Taitung 2025 · 28 Dec 2025
- Pingtung Winter Open 2025 · 1 Mar 2025
- NDHU Big Cube Day 2023 · 20 May 2023 — 1 personal best set
- WCA Asian Championship 2018 · 17 Aug 2018
- Taiwan Championship 2016 · 29 Oct 2016 — 2 personal bests set
- Cross-strait Cubing Exchange 2015 · 15 Aug 2015 — 1 personal best set
- Taiwan Summer Open 2014 · 2 Aug 2014 — 1 personal best set
- Taiwan Summer Open 2013 · 17 Aug 2013 — 1 personal best set
- Taiwan Summer Open 2012 · 25 Aug 2012 — 5 personal bests set
- Taiwan Winter Open 2011 · 12 Feb 2011 — 3 personal bests set
- Taiwan Summer Open 2010 · 28 Aug 2010 — 3 personal bests set
- Taiwan Winter Open 2010 · 6 Feb 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.
- Yi-Fan Wu (吳亦凡) — met in 44 rounds, finished ahead 13 times
- Chung-Han Hsu (許鍾瀚) — met in 38 rounds, finished ahead 16 times
- Kuo-Hau Wu (吳國豪) — met in 38 rounds, finished ahead 6 times
Next targets
- A sub-50 Megaminx single — 1,776 people have one; it is 2.84 away.
- A sub-10 3×3 single — 21,172 people have one; it is 0.50 away.
Targets move as he improves.