People · Australia
Klaus Cheng
2×2 · top 8.2% of 189,179 all-time · competing since May 2025 · 2025CHEN72
Klaus Cheng has been competing for a year. His best event is the 2×2: a personal-best single of 2.42, set at Winding Down in Willetton 2026, puts him in the top 8.2% of the 189,179 people who have ever been ranked in the event, and 625th in Australia. Until February 2008, no official 2×2 solve in the world had been that fast. Across 8 competitions since May 2025, he has put 189 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 14% around a typical one, an early reading from 9 counted rounds. His 2×2 best has come down from 12.44 in May 2025 to 2.42, an 81% improvement. Klaus has entered eight competitions, more competitions than 90% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Australia | |
|---|---|---|---|---|---|
| 2×2 | 2.42 | 3.77 | top 8.2% | 625 / 8,727 | |
| 3×3 | 10.26 | 12.93 | top 8.3% | 760 / 11,943 | |
| Pyraminx | 5.40 | 6.56 | top 15.8% | 772 / 6,109 | |
| 3×3 one-handed | 22.91 | 24.59 | top 28.6% | 650 / 2,685 | |
| Skewb | 7.39 | 11.75 | top 36.8% | 1,107 / 3,589 | |
| 4×4 | 1:06.05 | — | top 43.0% | 1,166 / 3,108 | |
| Clock | 13.94 | 20.71 | top 43.6% | 473 / 1,159 | |
| Square-1 | 27.30 | 34.14 | top 44.2% | 436 / 920 | |
| 5×5 | 2:17.31 | 2:29.17 | top 59.7% | 850 / 1,412 | |
| 6×6 | 5:47.29 | 6:31.32 | early days — 3 solves | 587 / 667 | |
| 7×7 | 9:07.03 | — | early days — 2 solves | 491 / 540 | |
| 3×3 Fewest Moves | 66 moves | — | early days — 1 solve | 460 / 474 |
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
Best single per competition, 2×2. Faster is higher — the axis is the right way up.
The story so far
- 9 Jul 2026Five personal bests in one day at Australian Nationals 2026.
- 16 May 2026Three personal bests in one day at Perth Puzzle Party 2026.
- 28 Mar 2026First sub-15 3×3: 13.28 at Only Cubes in Scarborough 2026.
- 28 Mar 2026Four personal bests in one day at Only Cubes in Scarborough 2026.
- 13 Sep 2025First sub-30 3×3: 18.81 at WA State Championship 2025.
- 13 Sep 2025First sub-20 3×3: 18.81 at WA State Championship 2025.
Competitions
- Winding Down in Willetton 2026 · 15 Aug 2026 — 2 personal bests set
- Australian Nationals 2026 · 9 Jul 2026 — 5 personal bests set
- Flinders Park Side Events 2026 · 20 Jun 2026 — 1 personal best set
- FMC World 2026 · 20 Jun 2026
- Perth Puzzle Party 2026 · 16 May 2026 — 3 personal bests set
- Only Cubes in Scarborough 2026 · 28 Mar 2026 — 4 personal bests set
- WA State Championship 2025 · 13 Sep 2025 — 3 personal bests set
- Perth Autumn 2025 · 24 May 2025
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.
- Amy Smith — met in 44 rounds, never finished ahead
- Regan Roberts — met in 43 rounds, finished ahead 5 times
- Joel Harrop — met in 40 rounds, finished ahead 11 times
Next targets
- A sub-2 2×2 single — 9,039 people have one; it is 0.42 away.
- A sub-10 3×3 single — 21,606 people have one; it is 0.26 away.
Targets move as he improves.