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People → China → Hengsheng Dai (戴恒盛)

People · China

Hengsheng Dai (戴恒盛)

Pyraminx · top 6.3% of 129,321 all-time · competing since July 2011 · 2011DAIH01

Hengsheng Dai (戴恒盛) has been competing for 15 years. His best event is the Pyraminx: a personal-best single of 3.71, set at Hefei Summer 2012, puts him in the top 6.3% of the 129,321 people who have ever been ranked in the event, and 745th in China. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 31 competitions since July 2011, he has put 1,043 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 9% around a typical one, steadier than 99% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 19.65 in March 2012 to 11.46, a 42% improvement. Hengsheng has entered 31 competitions, more competitions than 98% of everyone who has ever competed.

Pyraminx
best event — top 6.3% of 129,321 all-time
3.71
signature single · Hefei Summer 2012
1,043
official solves on the record
9%
solve-to-solve spread · steadier than 99% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
Pyraminx3.716.08
top 6.3%745 / 10,224
Skewb3.265.44
top 6.4%362 / 5,004
4×436.6642.03
top 8.3%860 / 5,926
3×311.4613.22
top 12.0%4,742 / 28,153
2×23.044.49
top 14.7%2,320 / 15,796
5×51:16.531:26.14
top 16.5%801 / 2,816
Square-117.2425.19
top 21.5%346 / 1,362
6×62:33.522:49.31
top 27.4%592 / 1,349
7×74:10.974:22.96
top 34.6%672 / 1,261
3×3 one-handed25.8934.40
top 36.5%3,434 / 5,922
Megaminx1:45.451:49.93
top 37.8%1,107 / 1,678
3×3 blindfolded4:53.73—
early days — 1 solve1,064 / 1,183

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

Hefei Spring 2012: 19.65Hefei Open 2013: 18.06Hefei Summer Open 2014: 15.21AnHui University Open 2015: 14.59Guangzhou Rubik's Cube Days 2016: 14.88Fuzhou Open 2016: 14.95Shantou Open 2016: 15.61Asian Championship 2016: 13.85Zhuhai Open 2017: 14.24Chaozhou Open 2017: 12.53China Championship 2017: 11.85Xiamen Autumn 2017: 12.83You May Open 2018: 12.68Hefei Summer 2018: 12.33Quanzhou Open 2018: 13.56Dongguan Spring 2019: 13.27Xiamen Winter 2019: 12.77Hefei Winter Open 2023: 12.28Huzhou Open 2024: 11.62Hefei Open 2025: 11.46Xuzhou Zenith 2026: 11.65Hefei Cubing League 3x3 I 2026: 12.29Hefei Cubing League 3x3 II 2026: 12.23Hefei Cubing League 3x3 III 2026: 12.79Hefei Cubing League 3x3 IV 2026: 13.89Wuhu Open 2026: 13.4411.4619.6510 Mar 201225 Jul 2026

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-3 Pyraminx single — 4,700 people have one; it is 0.71 away.
  • A sub-3 Skewb single — 3,646 people have one; it is 0.26 away.

Targets move as he improves.