People · China
Yubo Chui (炊于卜)
3×3 · top 10.0% of 284,439 all-time · competing since October 2018 · 2018CHUI01
Yubo Chui (炊于卜) has been competing for 8 years. His best event is the 3×3: a personal-best single of 10.83, set at Xi'an Cherry Blossom 2025, puts him in the top 10.0% of the 284,439 people who have ever been ranked in the event, and 3,898th in China. Until August 2006, no official 3×3 solve in the world had been that fast. Across 3 competitions since October 2018, he has put 93 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 6 counted rounds. His 3×3 best has come down from 13.16 in October 2018 to 10.83, an 18% improvement. Yubo has entered three competitions, more competitions than 69% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| 3×3 | 10.83 | 13.30 | top 10.0% | 3,898 / 28,153 | |
| 2×2 | 2.85 | 4.54 | top 12.6% | 1,967 / 15,796 | |
| 4×4 | 42.50 | 46.26 | top 15.1% | 1,630 / 5,926 | |
| 5×5 | 1:15.59 | 1:18.74 | top 15.8% | 768 / 2,816 | |
| 6×6 | 3:59.90 | — | early days — 1 solve | 1,143 / 1,349 | |
| Pyraminx | 13.81 | 16.81 | top 76.9% | 7,647 / 10,224 |
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
- 4 Apr 2025Six personal bests in one day at Xi'an Cherry Blossom 2025.
- 27 Oct 2018First competition: Xi'an Open 2018. A 13.16 3×3 single to start from.
Competitions
- Xi'an Cherry Blossom 2025 · 4 Apr 2025 — 6 personal bests set
- Xi'an Cherry Blossom 2019 · 13 Apr 2019 — 2 personal bests set
- Xi'an Open 2018 · 27 Oct 2018 — 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.
- Chenying Pei (裴琛英) — met in 17 rounds, never finished ahead
- Mingsen Han (韩明森) — met in 16 rounds, finished ahead 6 times
- Shiqiang Sang (桑世强) — met in 14 rounds, finished ahead 8 times
Next targets
- A sub-10 3×3 single — 21,172 people have one; it is 0.83 away.
- A sub-2 2×2 single — 8,848 people have one; it is 0.85 away.
Targets move as he improves.