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People → Indonesia → Hiroshi Yumeda (陆天龙)

People · Indonesia

Hiroshi Yumeda (陆天龙)

Pyraminx · top 0.55% of 129,321 all-time · competing since July 2019 · 2019YUME03

Hiroshi Yumeda (陆天龙) has been competing for 7 years. His best event is the Pyraminx: a personal-best single of 1.60, set at Rapid Academy Indonesian Championship 2024, puts him in the top 0.55% of the 129,321 people who have ever been ranked in the event, and 5th in Indonesia. Until March 2013, no official Pyraminx solve in the world had been that fast. Across 32 competitions since July 2019, he has put 1,318 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 60% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 34.48 in July 2019 to 7.04, an 80% improvement. Hiroshi has entered 32 competitions, more competitions than 98% of everyone who has ever competed.

Pyraminx
best event — top 0.55% of 129,321 all-time
1.60
signature single · Rapid Academy Indonesian Championship 2024
1,318
official solves on the record
13%
solve-to-solve spread · steadier than 60% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingIndonesia
Pyraminx1.603.28
top 0.55%5 / 1,643
2×21.172.84
top 0.95%16 / 2,889
3×37.049.21
top 1.4%55 / 4,145
Clock4.164.88
top 2.6%7 / 391
Skewb2.975.63
top 4.8%43 / 935
3×3 one-handed13.3316.80
top 4.9%54 / 1,441
4×436.4340.66
top 8.1%109 / 1,479
5×51:08.761:26.70
top 10.7%56 / 624
Square-116.6521.51
top 20.1%61 / 308
Megaminx1:25.161:35.71
top 25.0%102 / 341
6×63:10.073:16.64
top 45.8%88 / 183
7×76:18.60—
early days — 2 solves113 / 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

Jakarta Open 2019: 34.48Yongjun Jakarta Speedcubing 2019: 36.88Indonesian Championship 2022: 16.28Malang Cube Open 2023: 14.94Ignatian Open 2023: 11.02Jogja Fun Speedcubing 2023: 10.61Just 3x3: Old Shanghai Edition 2023: 9.77Tangerang Lagi 2023: 11.89Surabaya Open 2023: 9.28Taman Anggrek Speedcubing 2023: 10.38PIK 2: Osaka Riverview Cubing 2023: 9.26MYHM Indonesian Championship 2023: 9.18Jakarta Masters 2023: 8.09Canisius College Weekend 2023: 9.17Cubing in Palem 2023: 9.13Ke Solo Lur 2024: 8.25MYHM Singapore Championship 2024: 9.44Jawa Timur Open 2024: 8.45Karawang Speedcubing 2024: 8.20Gramedia Cube Open Jakarta 2024: 8.51PSKG Premiere Cubing 2024: 8.98Surabaya Showdown 2024: 8.54Gajah Mada Speedcubing 2024: 8.45Bali Discovery Speedcubing Masters 2024: 9.44Kolektif Jogja Open 2024: 7.04Lippo Mall Puri Speedcubing 2024: 7.62Hublife Speedcubing 2024: 8.40Rubik's WCA Asian Championship 2024: 8.41Rapid Academy Indonesian Championship 2024: 8.60Rapid Academy Surabaya Showdown 2025: 7.85Balam Cubes Jakarta Cube Feast 2026: 8.30Cupika Jakarta Summer 2026: 8.187.0436.8813 Jul 201911 Jul 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 0.60 away.
  • A sub-1 2×2 single — 1,032 people have one; it is 0.17 away.

Targets move as he improves.