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People → Chinese Taipei → Cheng-Yu Tsai (蔡承佑)

People · Chinese Taipei

Cheng-Yu Tsai (蔡承佑)

Pyraminx · top 0.35% of 130,891 all-time · competing since February 2024 · 2024TSAI02

Cheng-Yu Tsai (蔡承佑) has been competing for 3 years. His best event is the Pyraminx: a personal-best single of 1.44, set at Zhongshan Open 2024, puts him in the top 0.35% of the 130,891 people who have ever been ranked in the event, and 6th in Chinese Taipei. Until March 2013, no official Pyraminx solve in the world had been that fast. Across 25 competitions since February 2024, he has put 1,197 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 62% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 9.53 in March 2024 to 6.89, a 28% improvement. He has entered 25 competitions, more competitions than 98% of everyone who has ever competed.

Pyraminx
best event — top 0.35% of 130,891 all-time
1.44
signature single · Zhongshan Open 2024
1,197
official solves on the record
14%
solve-to-solve spread · wider than 62% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChinese Taipei
Pyraminx1.442.10
top 0.35%6 / 1,017
4×425.7930.22
top 0.95%27 / 1,079
5×546.5356.66
top 0.95%20 / 640
3×36.898.02
top 1.2%64 / 4,369
2×21.432.74
top 1.9%45 / 1,671
3×3 one-handed11.2615.02
top 2.1%28 / 805
Square-18.1910.27
top 3.3%12 / 323
Skewb3.164.45
top 5.8%61 / 700
6×61:50.861:54.53
top 7.6%42 / 293
Megaminx56.461:05.65
top 8.2%47 / 363
Clock7.157.73
top 11.4%50 / 370
7×73:06.813:14.12
top 12.4%61 / 252
3×3 Fewest Moves38 moves—
early days — 2 solves88 / 205
3×3 blindfolded2:24.45—
top 41.6%62 / 149

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

Taichung Open 2024: 9.53Zhongshan Open 2024: 8.86Chien Kuo Cubing Party 2024: 9.19Taipei Summer Open 2024: 7.95Maru Cube Day Taiwan 2024: 8.41Shin Kong Cube Open - Taichung 2024: 8.66Shin Kong Cube Open - Kaohsiung 2024: 8.21Taoyuan Airport Cube Day 2024: 8.05Taiwan Championship 2024: 8.97Pingtung Winter Open 2025: 7.98Zhongshan Open 2025: 8.17Taipei Summer Open 2025: 7.85Maru Cube Day Taiwan 2025: 7.46Hsinchu Summer Open 2025: 8.20Shin Kong Cube Open - Taichung 2025: 7.37Taoyuan Airport Cube Day 2025: 7.00Shin Kong Cube Open - Kaohsiung 2025: 6.89Taiwan Championship 2025: 7.00Penghu Spring Cube Open 2026: 6.95Zhongshan Open 2026: 8.12Taipei Cube Open 2026: 7.39Maru Cube Day Taiwan 2026: 7.01Shin Kong Cube Open - Taichung 2026: 7.11Shin Kong Cube Open - Kaohsiung 2026: 7.516.899.533 Mar 202413 Sep 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-1 Pyraminx single — 49 people have one; it is 0.44 away.
  • A sub-25 4×4 single — 614 people have one; it is 0.79 away.

Targets move as he improves.