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The Middle Three
People → Republic of Korea → Huisu Yu (유희수)

People · Republic of Korea

Huisu Yu (유희수)

3×3 · top 2.5% of 284,439 all-time · competing since May 2022 · 2022YUHU01

Huisu Yu (유희수) has been competing for 4 years. His best event is the 3×3: a personal-best single of 7.84, set at Ansan Summer 2024, puts him in the top 2.5% of the 284,439 people who have ever been ranked in the event, and 155th in Republic of Korea. Until July 2008, no official 3×3 solve in the world had been that fast. Across 43 competitions since May 2022, he has put 1,085 official solves on the record across 14 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 3×3 best has come down from 12.44 in May 2022 to 7.84, a 37% improvement. Huisu has entered 43 competitions, more competitions than 99% of everyone who has ever competed.

3×3
best event — top 2.5% of 284,439 all-time
7.84
signature single · Ansan Summer 2024
1,085
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 standingRepublic of Korea
3×37.849.36
top 2.5%155 / 4,352
4×430.4835.15
top 3.1%65 / 1,308
2×21.803.36
top 3.6%100 / 2,319
Skewb2.693.84
top 3.6%34 / 854
Pyraminx3.425.91
top 5.2%86 / 1,271
Clock5.377.67
top 5.4%34 / 536
5×51:00.751:04.50
top 5.9%66 / 716
3×3 one-handed14.0620.13
top 6.2%86 / 966
Square-111.0116.36
top 8.0%32 / 371
3×3 Fewest Moves28 moves39.00
top 9.9%21 / 173
6×61:57.412:07.95
top 10.0%52 / 329
7×73:04.003:05.28
top 11.7%43 / 254
Megaminx1:03.911:05.07
top 12.0%77 / 524
3×3 blindfolded2:23.90—
top 41.3%103 / 217

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 Spring 2022: 12.44Seoul Summer 2022: 12.70Korean Championship 2022: 11.86Daegu Hot Autumn 2022: 11.29Cubing SimCheong Open 2022: 11.24KAIST Fall 2022: 11.33Daegu Hot Spring 2023: 10.63Seoul Spring 2023: 12.30Rubik's WCA World Championship 2023: 10.84Suncheon Fall 2023: 8.59Hamchang Open 2023: 10.79Seoul Open 2024: 10.10Anyang Haseyo 2024: 9.16Prime Cubing Day Seoul 2024: 8.53Ansan Summer 2024: 7.84Korean Championship 2024: 8.87Brown Fall Seongnam 2024: 7.94Rubik's WCA Asian Championship 2024: 9.79Hamchang Winter 2024: 10.26Seoul Winter 2024: 9.36Happy Suseong 2025: 9.72Anyang Haseyo 2025: 8.72Korea Newcomers PM 2025: 9.12Daejeon Spring 2025: 7.98Korea Open 2025: 8.65Korean Championship 2025: 9.98Seoul Winter 2026: 7.96Cube Camp in Jeju 2026: 9.387.8412.7029 May 202221 Feb 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-6 3×3 single — 1,376 people have one; it is 1.84 away.
  • A sub-30 4×4 single — 2,388 people have one; it is 0.48 away.

Targets move as he improves.