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The Middle Three
People → China → Zian Song (宋子安)

People · China

Zian Song (宋子安)

Pyraminx · top 0.39% of 129,321 all-time · competing since October 2014 · 2014SONG08

Zian Song (宋子安) has been competing for 12 years. His best event is the Pyraminx: a personal-best single of 1.48, set at Nanjing Autumn 2017, puts him in the top 0.39% of the 129,321 people who have ever been ranked in the event, and 40th in China. Until March 2013, no official Pyraminx solve in the world had been that fast. Across 75 competitions since October 2014, he has put 2,656 official solves on the record across 17 events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 81% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 17.71 in October 2014 to 7.82, a 56% improvement. Zian has entered 75 competitions, more competitions than 99% of everyone who has ever competed.

Pyraminx
best event — top 0.39% of 129,321 all-time
1.48
signature single · Nanjing Autumn 2017
2,656
official solves on the record
11%
solve-to-solve spread · steadier than 81% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
Pyraminx1.483.56
top 0.39%40 / 10,224
4×427.5631.55
top 1.6%155 / 5,926
3×37.829.37
top 2.5%892 / 28,153
5×553.4857.75
top 2.8%121 / 2,816
6×61:35.631:47.76
top 3.0%51 / 1,349
7×72:28.432:42.61
top 3.5%68 / 1,261
3×3 Fewest Moves24 moves25.67
top 4.0%42 / 1,058
Skewb3.615.90
top 8.4%477 / 5,004
2×22.533.84
top 9.2%1,368 / 15,796
Megaminx1:02.911:09.77
top 11.5%313 / 1,678
3×3 blindfolded1:01.621:26.51
top 13.6%204 / 1,183
Square-113.9525.20
top 14.0%210 / 1,362
3×3 one-handed17.8022.01
top 14.6%1,441 / 5,922
Clock9.9110.66
top 24.7%556 / 1,843
5×5 blindfolded11:22.00—
early days — 3 solves33 / 95
4×4 blindfolded6:07.91—
top 30.2%55 / 149
3×3 Multi-Blind3 of 4 cubes · 12:39—
top 66.0%182 / 278

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

Nanjing Autumn 2014: 17.71Nanjing Spring 2015: 16.05Wuxi Open 2015: 14.62Shanghai Summer Open 2015: 13.51China Championship 2015: 14.02Zhenjiang Open 2015: 12.14Nanchang Winter 2015: 12.83Xi'an New Year 2016: 12.44Shanghai Spring 2016: 11.83Chengdu Open 2016: 11.27Chongqing Open 2016: 11.74Jinhua Open 2016: 12.91Xi'an Open 2016: 11.10Yangzhou Open 2016: 12.18Asian Championship 2016: 11.47Nanjing Autumn 2016: 12.02Shanghai Winter is Coming 2016: 10.94Zhenjiang Open 2016: 11.22Xi'an New Year 2017: 11.63Shanghai Spring 2017: 11.81ZUA Open 2017: 10.99Nanjing Spring 2017: 12.04Huaibei Open 2017: 10.45Luoyang Open 2017: 10.53China Championship 2017: 11.29Inner Mongolia Summer 2017: 12.03Yangzhou Open 2017: 11.33Suzhou Open 2017: 10.01Hefei Open 2017: 9.82Guilin Open 2017: 11.01Jinhua New Year's Day 2018: 10.91Shanghai Winter 2018: 10.19Hangzhou Spring 2018: 11.08Kunshan Open 2018: 7.84Changsha Xiangmo 2018: 9.50Nanjing Spring 2018: 9.04HUST Open 2018: 9.79Tangshan Open 2018: 10.19Changchun Open 2018: 9.28Longyan Open 2018: 9.89Wuxi Autumn 2018: 9.99Nanjing Autumn 2018: 10.87Xuzhou Winter 2018: 9.68Kunshan Open 2019: 10.26Tianjin Summer Solstice 2021: 8.87Rubik's WCA World Championship 2023: 9.99Shenzhen Youth Open 2023: 9.48Malaysia Cube Championship 2023: 9.50Huzhou Open 2024: 7.82Cube Camp in Nakhon Nayok 2024: 8.96Rubik's WCA Asian Championship 2024: 8.45Zhengzhou Open 2024: 9.34Chengdu Spring Open 2025: 9.48Tokai Spring 2025: 7.947.8217.7118 Oct 201412 Apr 2025

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 0.48 away.
  • A sub-25 4×4 single — 588 people have one; it is 2.56 away.

Targets move as he improves.