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The Middle Three
People → Hong Kong, China → Liu Shing Chak (柳丞澤)

People · Hong Kong, China

Liu Shing Chak (柳丞澤)

2×2 · top 1.6% of 186,767 all-time · competing since August 2024 · 2024CHAK03

Liu Shing Chak (柳丞澤) has been competing for 2 years. His best event is the 2×2: a personal-best single of 1.38, set at Maoming Open 2026, puts him in the top 1.6% of the 186,767 people who have ever been ranked in the event, and 26th in Hong Kong, China. Until November 2008, no official 2×2 solve in the world had been that fast. Across 12 competitions since August 2024, he has put 259 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 73% of the 35,811 competitors with ten or more counted rounds. His 2×2 best has come down from 2.15 in August 2024 to 1.38, a 36% improvement. Liu has entered twelve competitions, more competitions than 94% of everyone who has ever competed.

2×2
best event — top 1.6% of 186,767 all-time
1.38
signature single · Maoming Open 2026
259
official solves on the record
12%
solve-to-solve spread · steadier than 73% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingHong Kong, China
2×21.382.50
top 1.6%26 / 855
3×38.1710.78
top 3.1%95 / 1,347
Pyraminx3.024.70
top 3.7%28 / 431
Clock5.166.08
top 4.8%19 / 156
4×438.2946.92
top 10.1%79 / 423
5×51:13.811:30.63
top 14.4%66 / 192
3×3 Fewest Moves30 moves40.33
top 14.8%24 / 76
Skewb5.346.82
top 20.8%87 / 285
Square-117.4821.98
top 22.1%47 / 126
3×3 one-handed21.0722.41
top 23.4%139 / 361
3×3 blindfolded1:43.15—
early days — 3 solves27 / 65
Megaminx2:09.88—
early days — 2 solves108 / 154

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

Hong Kong Cube Day 2024: 2.15Hong Kong Championship 2024: 2.85Hong Kong Cube Day 2025: 1.55Jiangmen Open 2025: 2.01HKRCU 20th Anniversary 2025: 2.15Hong Kong Championship 2025: 2.17Maoming Open 2026: 1.38Zhanjiang Open 2026: 1.681.382.8531 Aug 20249 Aug 2026

Best single per competition, 2×2. 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 2×2 single — 1,032 people have one; it is 0.38 away.
  • A sub-8 3×3 single — 7,931 people have one; it is 0.17 away.

Targets move as he improves.