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The Middle Three
People → China → Qihan Chen (陈启晗)

People · China

Qihan Chen (陈启晗)

Skewb · top 3.8% of 73,281 all-time · competing since August 2019 · 2019CHEQ05

Qihan Chen (陈启晗) has been competing for 7 years. His best event is the Skewb: a personal-best single of 2.73, set at Guangdong Open - Revival & Rival 2026, puts him in the top 3.8% of the 73,281 people who have ever been ranked in the event, and 198th in China. Until February 2014, no official Skewb solve in the world had been that fast. Across 29 competitions since August 2019, he has put 443 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 89% of the 35,811 competitors with ten or more counted rounds. His Skewb best has come down from 12.21 in August 2019 to 2.73, a 78% improvement. Qihan has entered 29 competitions, more competitions than 98% of everyone who has ever competed.

Skewb
best event — top 3.8% of 73,281 all-time
2.73
signature single · Guangdong Open - Revival & Rival 2026
443
official solves on the record
11%
solve-to-solve spread · steadier than 89% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
Skewb2.734.36
top 3.8%198 / 5,004
3×3 Fewest Moves24 moves30.00
top 4.0%42 / 1,058
Pyraminx3.716.73
top 6.3%745 / 10,224
2×22.614.78
top 10.0%1,515 / 15,796
3×311.2915.80
top 11.4%4,483 / 28,153
3×3 one-handed19.7825.26
top 19.9%1,992 / 5,922
Clock9.2510.01
top 21.2%461 / 1,843

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

Shenzhen Cubing 10th Anniversary 2019: 12.21 Shenzhen Good Afternoon 2020: 6.64Guangzhou Panyu Afternoon 2021: 7.91Guangdong Open 2021: 8.03STEM Cube Open Penang 2023: 5.27Fushun Open 2024: 3.07Welcome Back Hong Kong 2024: 3.20Guangzhou Special 2024: 3.71Malaysia 15th Anniversary Championship 2024: 4.09Zhuhai Open 2025: 2.87Xi'an Summer 2025: 4.03HKRCU 20th Anniversary 2025: 3.62Guangzhou Special 2025: 3.60Guangdong Open - Revival & Rival 2026: 2.73Foshan Open 2026: 3.78Liuzhou Open 2026: 4.14Quanzhou Summer 2026: 3.22Guangzhou Special 2026: 3.182.7312.2124 Aug 201919 Jun 2026

Best single per competition, Skewb. Faster is higher — the axis is the right way up.

The story so far

Competitions

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.

Next targets

  • A sub-2 Skewb single — 1,013 people have one; it is 0.73 away.
  • A sub-3 Pyraminx single — 4,700 people have one; it is 0.71 away.

Targets move as he improves.