People · Chinese Taipei
Yu-Chia Chang (張祐嘉)
3×3 · top 0.46% of 284,439 all-time · competing since September 2019 · 2019CHAN59
Yu-Chia Chang (張祐嘉) has been competing for 7 years. His best event is the 3×3: a personal-best single of 5.95, set at Shin Kong Cube Open - Taichung 2026, puts him in the top 0.46% of the 284,439 people who have ever been ranked in the event, and 17th in Chinese Taipei. Until June 2011, no official 3×3 solve in the world had been that fast. Across 12 competitions since September 2019, he has put 371 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 61% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 17.91 in September 2019 to 5.95, a 67% 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 | |
|---|---|---|---|---|---|
| 3×3 | 5.95 | 7.06 | top 0.46% | 17 / 4,213 | |
| 4×4 | 29.58 | 35.62 | top 2.6% | 74 / 1,078 | |
| 2×2 | 2.01 | 2.74 | top 4.8% | 125 / 1,669 | |
| 3×3 one-handed | 14.23 | 19.34 | top 6.6% | 85 / 802 | |
| Square-1 | 11.44 | 13.22 | top 8.7% | 42 / 323 | |
| 5×5 | 1:09.46 | 1:20.05 | top 11.2% | 171 / 639 | |
| Pyraminx | 4.95 | 6.55 | top 12.9% | 199 / 1,016 | |
| Megaminx | 1:10.79 | 1:23.06 | top 16.1% | 91 / 362 | |
| Clock | 9.43 | 12.50 | top 22.1% | 91 / 366 | |
| 3×3 Fewest Moves | 40 moves | — | early days — 1 solve | 104 / 204 | |
| Skewb | 9.60 | 20.75 | top 52.4% | 456 / 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 Nov 2025Four personal bests in one day at Taoyuan Airport Cube Day 2025.
- 6 Dec 2024Three personal bests in one day at Taiwan Championship 2024.
- 29 Jun 2024Three personal bests in one day at Taipei Summer Open 2024.
- 3 Mar 2024First sub-15 3×3: 8.17 at Taichung Open 2024.
- 3 Mar 2024First sub-10 3×3: 8.17 at Taichung Open 2024.
- 3 Mar 2024Four personal bests in one day at Taichung Open 2024.
Competitions
- Shin Kong Cube Open - Taichung 2026 · 30 Aug 2026 — 1 personal best set
- Maru Cube Day Taiwan 2026 · 25 Jul 2026 — 1 personal best set
- Taoyuan Airport Cube Day 2025 · 29 Nov 2025 — 4 personal bests set
- Shin Kong Cube Open - Taichung 2025 · 22 Nov 2025
- Hsinchu Summer Open 2025 · 17 Aug 2025 — 2 personal bests set
- BQHS Spring Open 2025 · 13 Apr 2025
- Taiwan Championship 2024 · 6 Dec 2024 — 3 personal bests set
- Shin Kong Cube Open - Taichung 2024 · 14 Sep 2024 — 1 personal best set
- Hsinchu Summer Open 2024 · 17 Aug 2024 — 1 personal best set
- Taipei Summer Open 2024 · 29 Jun 2024 — 3 personal bests set
- Taichung Open 2024 · 3 Mar 2024 — 4 personal bests set
- Dream One Cube Open 2019 · 15 Sep 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 73 rounds, finished ahead 29 times
- Wu Li (李悟) — met in 63 rounds, finished ahead 43 times
- Chun-Pao Ni (倪君寶) — met in 63 rounds, finished ahead 39 times
Next targets
- A sub-5 3×3 single — 344 people have one; it is 0.95 away.
- A sub-25 4×4 single — 588 people have one; it is 4.58 away.
Targets move as he improves.