People · Chinese Taipei
Cheng-Chin Tsai (蔡承晉)
3×3 · top 4.1% of 284,439 all-time · competing since December 2021 · 2021TSAI02
Cheng-Chin Tsai (蔡承晉) has been competing for 5 years. His best event is the 3×3: a personal-best single of 8.68, set at CK Cubing Party 2022, puts him in the top 4.1% of the 284,439 people who have ever been ranked in the event, and 237th in Chinese Taipei. Until July 2008, no official 3×3 solve in the world had been that fast. Across 5 competitions since December 2021, he has put 111 official solves on the record across six events. Solve to solve, his 3×3 times vary about 15% around a typical one, an early reading from 8 counted rounds. His 3×3 best has come down from 13.15 in December 2021 to 8.68, a 34% improvement. He has entered five competitions, more competitions than 83% 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 | 8.68 | 12.04 | top 4.1% | 237 / 4,213 | |
| 4×4 | 31.98 | 40.58 | top 4.2% | 109 / 1,078 | |
| 2×2 | 3.26 | 4.57 | top 17.3% | 446 / 1,669 | |
| 3×3 one-handed | 19.82 | 22.50 | top 20.0% | 258 / 802 | |
| Pyraminx | 7.07 | 9.57 | top 28.4% | 400 / 1,016 | |
| Skewb | 14.31 | 17.40 | top 75.9% | 601 / 699 |
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
- 29 May 2022First sub-10 3×3: 8.68 at CK Cubing Party 2022.
- 29 May 2022Five personal bests in one day at CK Cubing Party 2022.
- 19 Dec 2021First competition: Welcome Back Taipei 2021. A 13.15 3×3 single to start from.
Competitions
- Hsinchu Summer Open 2024 · 17 Aug 2024 — 2 personal bests set
- Chiayi Open 2022 · 23 Jul 2022 — 1 personal best set
- CK Cubing Party 2022 · 29 May 2022 — 5 personal bests set
- Taiwan Open 2022 · 14 Jan 2022 — 1 personal best set
- Welcome Back Taipei 2021 · 19 Dec 2021
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 24 rounds, never finished ahead
- Shu-Yii Luo (駱書翊) — met in 24 rounds, never finished ahead
- Kai-Lun Cheng (鄭凱倫) — met in 24 rounds, never finished ahead
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 0.68 away.
- A sub-30 4×4 single — 2,388 people have one; it is 1.98 away.
Targets move as he improves.