People · China
Siyuan Liu (刘思源)
Pyraminx · top 1.3% of 129,321 all-time · competing since October 2019 · 2019LIUS15
Siyuan Liu (刘思源) has been competing for 7 years. His best event is the Pyraminx: a personal-best single of 2.08, set at Penn Cube Day Fall 2025, puts him in the top 1.3% of the 129,321 people who have ever been ranked in the event, and 137th in China. Until July 2011, no official Pyraminx solve in the world had been that fast. Across 11 competitions since October 2019, he has put 196 official solves on the record across five events. Solve to solve, his 3×3 times vary about 15% around a typical one, an early reading from 9 counted rounds. His Pyraminx best has come down from 4.68 in October 2019 to 2.08, a 56% improvement. Siyuan has entered eleven competitions, more competitions than 93% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| Pyraminx | 2.08 | 3.25 | top 1.3% | 137 / 10,224 | |
| Skewb | 5.05 | 8.59 | top 18.5% | 1,152 / 5,004 | |
| 3×3 | 13.42 | 18.87 | top 18.9% | 7,365 / 28,153 | |
| 2×2 | 4.10 | 5.12 | top 27.8% | 4,713 / 15,796 | |
| Square-1 | 21.85 | 30.60 | top 32.2% | 545 / 1,362 |
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, Pyraminx. Faster is higher — the axis is the right way up.
The story so far
- 23 Mar 2025First sub-15 3×3: 13.42 at Penn Cube Day Spring 2025.
- 7 Dec 2019First sub-20 3×3: 19.86 at Beijing Winter 2019.
- 20 Oct 2019First competition: Tianjin Autumn 2019. A 26.05 3×3 single to start from.
Competitions
- Penn Cube Day Spring 2026 · 22 Mar 2026
- Penn Cube Day Fall 2025 · 2 Nov 2025 — 2 personal bests set
- Rubik's WCA World Championship 2025 · 3 Jul 2025 — 1 personal best set
- Penn Cube Day Spring 2025 · 23 Mar 2025 — 1 personal best set
- Beijing Winter 2025 · 4 Jan 2025 — 1 personal best set
- Penn Cube Day Fall 2024 · 2 Nov 2024 — 2 personal bests set
- Beijing Spring AM 2021 · 4 Apr 2021 — 2 personal bests set
- Xi'an New Year 2020 · 1 Jan 2020 — 2 personal bests set
- Beijing Winter 2019 · 7 Dec 2019 — 2 personal bests set
- Zibo Open 2019 · 17 Nov 2019 — 2 personal bests set
- Tianjin Autumn 2019 · 20 Oct 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.
- Guanbo Wang (王冠博) — met in 15 rounds, finished ahead 5 times
- Darren Saito — met in 15 rounds, never finished ahead
- Jiate Xie (谢佳特) — met in 14 rounds, finished ahead twice
Next targets
- A sub-2 Pyraminx single — 1,476 people have one; it is 0.08 away.
- A sub-5 Skewb single — 13,285 people have one; it is 0.05 away.
Targets move as he improves.