People · Hong Kong, China
Lucas Liu Rui De (劉睿德)
2×2 · top 8.1% of 186,767 all-time · competing since November 2024 · 2024DELU03
Lucas Liu Rui De (劉睿德) has been competing for a year. His best event is the 2×2: a personal-best single of 2.42, set at Shenzhen Open 2024, puts him in the top 8.1% of the 186,767 people who have ever been ranked in the event, and 109th in Hong Kong, China. Until February 2008, no official 2×2 solve in the world had been that fast. Across 9 competitions since November 2024, he has put 88 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 13% around a typical one, an early reading from 6 counted rounds. That figure sets aside his 2 DNFs. His 3×3 best has come down from 21.37 in November 2024 to 13.67, a 36% improvement. Lucas 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 | Hong Kong, China | |
|---|---|---|---|---|---|
| 2×2 | 2.42 | 5.12 | top 8.1% | 109 / 855 | |
| Pyraminx | 4.42 | 7.32 | top 9.8% | 71 / 431 | |
| 3×3 | 13.67 | 18.33 | top 19.8% | 429 / 1,347 | |
| Clock | 12.30 | 14.28 | top 36.4% | 82 / 156 | |
| 3×3 one-handed | 32.14 | — | top 51.5% | 248 / 361 | |
| Square-1 | 42.06 | 59.60 | top 67.9% | 103 / 126 | |
| 4×4 | 1:49.69 | — | early days — 1 solve | 382 / 423 |
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 2025First sub-15 3×3: 13.67 at Hong Kong Championship 2025.
- 7 Dec 2024First sub-20 3×3: 17.97 at Shenzhen Open 2024.
- 16 Nov 2024First competition: Hong Kong Championship 2024. A 21.37 3×3 single to start from.
Competitions
- Odd Day in Hong Kong 2026 · 26 Apr 2026
- Hong Kong Championship 2025 · 15 Nov 2025 — 2 personal bests set
- HKRCU 20th Anniversary 2025 · 20 Sep 2025 — 2 personal bests set
- Hong Kong Side Event Day 2025 · 21 Jun 2025 — 1 personal best set
- Hong Kong Cube Day 2025 · 7 Jun 2025 — 1 personal best set
- Beijing Spring Open 2025 · 20 Apr 2025
- A New Year in Singapore 2025 · 1 Jan 2025
- Shenzhen Open 2024 · 7 Dec 2024 — 2 personal bests set
- Hong Kong Championship 2024 · 16 Nov 2024
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.
- Ling Hei Nok (凌希諾) — met in 20 rounds, finished ahead twice
- Li Shang Cheng (李尚澄) — met in 19 rounds, finished ahead twice
- Andy Mok Man Cheuk (莫文卓) — met in 19 rounds, never finished ahead
Next targets
- A sub-2 2×2 single — 8,848 people have one; it is 0.42 away.
- A sub-4 Pyraminx single — 9,892 people have one; it is 0.42 away.
Targets move as he improves.