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The Middle Three
People → China → Sicheng Gu (顾思成)

People · China

Sicheng Gu (顾思成)

Pyraminx · top 0.42% of 129,321 all-time · competing since May 2017 · 2017GUSI01

Sicheng Gu (顾思成) has been competing for 9 years. His best event is the Pyraminx: a personal-best single of 1.50, set at Wuxi Winter 2019, puts him in the top 0.42% of the 129,321 people who have ever been ranked in the event, and 45th in China. Until March 2013, no official Pyraminx solve in the world had been that fast. Across 22 competitions since May 2017, he has put 1,078 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 14% around a typical one; 65% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 17.63 in May 2017 to 7.79, a 56% improvement. Sicheng has entered 22 competitions, more competitions than 97% of everyone who has ever competed.

Pyraminx
best event — top 0.42% of 129,321 all-time
1.50
signature single · Wuxi Winter 2019
1,078
official solves on the record
14%
solve-to-solve spread · wider than 65% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
Pyraminx1.503.22
top 0.42%45 / 10,224
2×21.121.43
top 0.82%87 / 15,796
3×37.799.03
top 2.4%880 / 28,153
Skewb3.254.35
top 6.3%357 / 5,004
4×434.8238.79
top 6.5%656 / 5,926
3×3 one-handed15.3216.94
top 8.8%833 / 5,922
Megaminx59.001:06.42
top 9.5%240 / 1,678
Clock6.918.78
top 10.6%232 / 1,843
Square-112.4115.72
top 10.7%164 / 1,362
5×51:18.411:32.21
top 17.9%858 / 2,816
6×63:06.383:13.10
early days — 3 solves860 / 1,349

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

Shanghai Love In ECNU 2017: 17.63ZUST Open 2017: 15.62China Championship 2017: 12.77Wuxi Open 2017: 15.53Yangzhou Open 2017: 12.35Suzhou Open 2017: 11.96Zhenjiang Open 2017: 10.69Jinhua New Year's Day 2018: 12.13Shanghai Winter 2018: 10.84Nanjing Spring 2018: 10.12Hefei Summer 2018: 9.99China Championship 2018: 9.43SJTU Winter Open 2018: 7.79Kunshan Open 2019: 8.51Hefei Summer 2019: 10.42Huzhou Open 2019: 8.40China Championship 2019: 8.80Suzhou Open 2019: 8.10Shandong Open 2019: 10.01Shanghai Open 2019: 10.09Xuzhou Winter 2019: 9.13Wuxi Winter 2019: 8.097.7917.6320 May 20178 Dec 2019

Best single per competition, 3×3. 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-1 Pyraminx single — 49 people have one; it is 0.50 away.
  • A sub-1 2×2 single — 1,032 people have one; it is 0.12 away.

Targets move as he improves.