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People · United Kingdom

Kai Cui

3×3 Fewest Moves · top 1.0% of 12,294 all-time · competing since June 2019 · 2019CUIK03

Kai Cui has been competing for 7 years. His best event is the 3×3 Fewest Moves: a personal-best single of 20 moves, set at FMC Cheltenham Spring 2025, puts him in the top 1.0% of the 12,294 people who have ever been ranked in the event, and 8th in the United Kingdom. Across 35 competitions since June 2019, he has put 1,063 official solves on the record across 15 events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 88% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 34.85 in June 2019 to 8.59, a 75% improvement. Kai has entered 35 competitions, more competitions than 99% of everyone who has ever competed.

3×3 Fewest Moves
best event — top 1.0% of 12,294 all-time
20 moves
signature single · FMC Cheltenham Spring 2025
1,063
official solves on the record
11%
solve-to-solve spread · steadier than 88% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited Kingdom
3×3 Fewest Moves20 moves21.33
top 1.0%8 / 372
Pyraminx2.122.97
top 1.4%59 / 3,656
3×38.5910.61
top 3.9%314 / 6,689
2×21.933.14
top 4.3%307 / 4,895
Skewb3.585.12
top 8.2%188 / 2,421
Clock6.969.45
top 10.8%144 / 1,232
4×440.8847.87
top 13.1%305 / 2,071
Megaminx1:06.801:14.18
top 13.8%173 / 966
3×3 one-handed18.4221.89
top 16.2%308 / 1,851
3×3 blindfolded1:14.062:34.23
top 17.4%84 / 311
Square-116.3119.78
top 19.3%191 / 778
5×51:26.011:42.18
top 24.1%322 / 1,151
3×3 Multi-Blind3 of 3 cubes · 27:32—
top 56.6%90 / 126
7×76:31.52—
early days — 1 solve362 / 459
6×67:17.18—
early days — 1 solve536 / 548

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

British Summer Open 2019: 34.85Cheltenham Summer 2022: 16.08Carlisle Summer 2022: 11.84Lincoln Summer 2022: 11.56Kewbz UK Championship 2022: 12.40Liverpool Winter 2023: 12.65Manchester Winter 2024: 11.23Wiltshire March 2024: 9.27Crewe Spring 2024: 10.24Stevenage June 2024: 9.92Bolton Summer 2024: 10.80Rubik's WCA European Championship 2024: 11.80Manchester August 2024: 9.34Birmingham Summer 2024: 10.15Rubik's UK Championship 2024: 9.81Wiltshire November 2024: 10.01Crewe Favourites 2025: 9.64Rubik's UK Championship 2025: 10.27Stevenage 10th Anniversary 2025: 8.59Wiltshire Winter 2025: 9.268.5934.8529 Jun 201913 Dec 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-2 Pyraminx single — 1,476 people have one; it is 0.12 away.
  • A sub-8 3×3 single — 7,931 people have one; it is 0.59 away.

Targets move as he improves.