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The Middle Three
People → Republic of Korea → Changseok Yang

People · Republic of Korea

Changseok Yang

Clock · top 5.8% of 32,048 all-time · competing since December 2021 · 2021YANG26

Changseok Yang has been competing for 5 years. His best event is the Clock: a personal-best single of 5.54, set at Ansan Autumn 2023, puts him in the top 5.8% of the 32,048 people who have ever been ranked in the event, and 36th in Republic of Korea. Until December 2011, no official Clock solve in the world had been that fast. Across 15 competitions since December 2021, he has put 262 official solves on the record across 15 events. Solve to solve, his 3×3 times vary about 15% around a typical one; 86% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. That figure sets aside his 3 DNFs. His 3×3 best has come down from 17.91 in December 2021 to 10.46, a 42% improvement. Changseok has entered 15 competitions, more competitions than 95% of everyone who has ever competed.

Clock
best event — top 5.8% of 32,048 all-time
5.54
signature single · Ansan Autumn 2023
262
official solves on the record
15%
solve-to-solve spread · wider than 86% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
Clock5.547.78
top 5.8%36 / 536
3×3 blindfolded41.481:16.04
top 7.3%21 / 217
3×310.4612.78
top 8.8%503 / 4,352
Skewb3.735.81
top 9.1%98 / 854
3×3 Fewest Moves29 moves—
top 12.2%25 / 173
2×22.894.16
top 13.0%390 / 2,319
3×3 Multi-Blind12 of 13 cubes · 53:03—
top 14.3%13 / 74
4×442.5149.91
top 15.1%287 / 1,308
Square-115.0920.21
top 16.7%69 / 371
4×4 blindfolded5:04.73—
early days — 2 solves18 / 48
3×3 one-handed23.6233.93
top 30.4%400 / 966
Pyraminx7.429.83
top 31.3%471 / 1,271
Megaminx1:38.071:46.89
top 33.4%216 / 524
5×51:39.721:44.94
top 35.1%306 / 716
7×76:39.887:36.92
early days — 3 solves217 / 254

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

Korean Championship Mini 2021: 17.91Korean Spring 2022: 13.73Seoul Summer 2022: 11.13Korean Championship 2022: 13.30Daegu Hot Autumn 2022: 11.67Cubing SimCheong Open 2022: 11.47KAIST Fall 2022: 11.21Seoul Spring 2023: 11.59Rubik's WCA World Championship 2023: 10.46Anyang Haseyo 2024: 12.5510.4617.9118 Dec 20219 Mar 2024

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-5 Clock single — 1,421 people have one; it is 0.54 away.
  • A sub-40 3×3 blindfolded single — 826 people have one; it is 1.48 away.

Targets move as he improves.