People · Hong Kong, China
Yim Cheuk Him (嚴倬謙)
2×2 · top 1.6% of 186,767 all-time · competing since March 2023 · 2023HIMY01
Yim Cheuk Him (嚴倬謙) has been competing for 4 years. His best event is the 2×2: a personal-best single of 1.37, set at Hong Kong Championship 2024, puts him in the top 1.6% of the 186,767 people who have ever been ranked in the event, and 25th in Hong Kong, China. Until November 2008, no official 2×2 solve in the world had been that fast. Across 10 competitions since March 2023, he has put 265 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 14% around a typical one; 63% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 15.77 in March 2023 to 8.51, a 46% improvement. Yim has entered ten competitions, more competitions than 92% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Hong Kong, China | |
|---|---|---|---|---|---|
| 2×2 | 1.37 | 3.13 | top 1.6% | 25 / 855 | |
| Square-1 | 8.29 | 13.19 | top 3.4% | 14 / 126 | |
| 3×3 | 8.51 | 10.08 | top 3.8% | 114 / 1,347 | |
| Pyraminx | 4.41 | 6.06 | top 9.8% | 70 / 431 | |
| 3×3 Fewest Moves | 31 moves | 39.67 | early days — 3 solves | 29 / 76 | |
| 3×3 one-handed | 18.88 | 21.94 | top 17.5% | 106 / 361 | |
| 4×4 | 45.44 | 52.51 | top 18.8% | 138 / 423 | |
| Skewb | 5.10 | 7.20 | top 18.9% | 75 / 285 | |
| 5×5 | 1:38.97 | — | top 34.6% | 114 / 192 | |
| Megaminx | 1:43.79 | — | top 36.9% | 87 / 154 | |
| Clock | 12.52 | 15.18 | top 37.5% | 85 / 156 |
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
- 15 Nov 2025Three personal bests in one day at Hong Kong Championship 2025.
- 16 Nov 2024Nine personal bests in one day at Hong Kong Championship 2024.
- 31 Aug 2024Four personal bests in one day at Hong Kong Cube Day 2024.
- 31 Mar 2024Three personal bests in one day at Welcome Back Hong Kong 2024.
- 21 Oct 2023First sub-10 3×3: 9.31 at Hong Kong Championship 2023.
- 21 Oct 2023Five personal bests in one day at Hong Kong Championship 2023.
Competitions
- Hong Kong Championship 2025 · 15 Nov 2025 — 3 personal bests set
- Hong Kong Side Event Day 2025 · 21 Jun 2025 — 2 personal bests set
- Hong Kong Cube Day 2025 · 7 Jun 2025 — 1 personal best set
- Hong Kong FMC Championship 2024 · 28 Dec 2024
- Hong Kong Championship 2024 · 16 Nov 2024 — 9 personal bests set
- Hong Kong Cube Day 2024 · 31 Aug 2024 — 4 personal bests set
- Welcome Back Hong Kong 2024 · 31 Mar 2024 — 3 personal bests set
- Hong Kong Championship 2023 · 21 Oct 2023 — 5 personal bests set
- Hong Kong Small Cube Day 2023 · 26 May 2023 — 1 personal best set
- Hong Kong Cube Day 2023 · 4 Mar 2023
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.
- Shek Ho Hin (石灝軒) — met in 59 rounds, finished ahead 13 times
- Chan Sai Chong (陳世聰) — met in 59 rounds, finished ahead twice
- Andy Mok Man Cheuk (莫文卓) — met in 59 rounds, finished ahead once
Next targets
- A sub-1 2×2 single — 1,032 people have one; it is 0.37 away.
- A sub-8 Square-1 single — 766 people have one; it is 0.29 away.
Targets move as he improves.