People · Chinese Taipei
Kai-Zhu Hsieh (謝鎧竹)
Pyraminx · top 6.0% of 130,891 all-time · competing since April 2019 · 2019HSIE05
Kai-Zhu Hsieh (謝鎧竹) has been competing for 8 years. His best event is the Pyraminx: a personal-best single of 3.62, set at Chien Kuo Cubing Party 2026, puts him in the top 6.0% of the 130,891 people who have ever been ranked in the event, and 98th in Chinese Taipei. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 9 competitions since April 2019, he has put 295 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 15% around a typical one; 85% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 25.78 in April 2019 to 10.49, a 59% improvement. He has entered nine competitions, more competitions than 91% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Chinese Taipei | |
|---|---|---|---|---|---|
| Pyraminx | 3.62 | 5.76 | top 6.0% | 98 / 1,017 | |
| 3×3 | 10.49 | 13.27 | top 9.0% | 550 / 4,369 | |
| Skewb | 5.15 | 9.00 | top 19.4% | 195 / 700 | |
| 2×2 | 3.53 | 4.73 | top 20.6% | 515 / 1,671 | |
| 4×4 | 47.85 | 1:01.24 | top 22.0% | 444 / 1,079 | |
| Megaminx | 1:25.65 | 1:39.66 | top 25.5% | 147 / 363 | |
| Square-1 | 20.77 | 29.22 | top 29.8% | 130 / 323 | |
| 5×5 | 1:42.98 | — | top 37.6% | 382 / 640 | |
| 3×3 one-handed | 30.13 | — | top 47.0% | 561 / 805 | |
| Clock | 15.28 | 19.55 | top 49.0% | 219 / 370 | |
| 6×6 | 4:07.24 | — | early days — 3 solves | 244 / 293 | |
| 7×7 | 7:07.19 | — | early days — 1 solve | 231 / 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
- 18 Jul 2026Three personal bests in one day at Chien Kuo Cubing Party 2026.
- 3 Sep 2022Three personal bests in one day at Maru Cube Day 2022.
- 9 May 2021Four personal bests in one day at Welcome Back Kaohsiung 2021.
- 29 Feb 2020First sub-15 3×3: 11.48 at Zhuyuangang Open 2020.
- 29 Feb 2020Six personal bests in one day at Zhuyuangang Open 2020.
- 13 Dec 2019Six personal bests in one day at Taiwan Championship 2019.
Competitions
- Chien Kuo Cubing Party 2026 · 18 Jul 2026 — 3 personal bests set
- Maru Cube Day 2022 · 3 Sep 2022 — 3 personal bests set
- Welcome Back Kaohsiung 2021 · 9 May 2021 — 4 personal bests set
- Zhuyuangang Open 2020 · 29 Feb 2020 — 6 personal bests set
- Taiwan Championship 2019 · 13 Dec 2019 — 6 personal bests set
- Cross-strait Cubing Exchange 2019 · 12 Oct 2019 — 5 personal bests set
- Dream One Cube Open 2019 · 15 Sep 2019 — 6 personal bests set
- Maru Cube Day 2019 · 6 Jul 2019 — 3 personal bests set
- HCHS 10th Anniversary 2019 · 21 Apr 2019
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.
- Chao-Che Chung (鍾肇哲) — met in 80 rounds, finished ahead 3 times
- Chia-Leo Lin (林珈樂) — met in 64 rounds, finished ahead 20 times
- Yu-Kai Chen (陳宇楷) — met in 62 rounds, never finished ahead
Next targets
- A sub-3 Pyraminx single — 4,783 people have one; it is 0.62 away.
- A sub-10 3×3 single — 21,606 people have one; it is 0.49 away.
Targets move as he improves.