People · Japan
Hu Kuroiwa (黒岩風)
2×2 · top 44.3% of 186,767 all-time · competing since September 2005 · 2005KURO01
Hu Kuroiwa (黒岩風) has been competing for 21 years. His best event is the 2×2: a personal-best single of 5.41, set at Osaka Open 2008, puts him in the top 44.3% of the 186,767 people who have ever been ranked in the event, and 560th in Japan. Across 6 competitions since September 2005, he has put 39 official solves on the record across four events. His 3×3 best has come down from 1:55.60 in September 2005 to 35.44, a 69% improvement. Hu has entered six competitions, more competitions than 86% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| 2×2 | 5.41 | 17.62 | top 44.3% | 560 / 1,021 | |
| Clock | 20.15 | 28.21 | early days — 3 solves | 222 / 263 | |
| 3×3 | 35.44 | 51.14 | top 71.1% | 2,416 / 3,329 | |
| Pyraminx | 13.53 | 19.46 | top 75.6% | 582 / 688 |
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, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 12 Nov 2006First sub-60 3×3: 35.44 at Japanese Championship 2006.
- 3 Sep 2005First competition: Japanese Championship 2005. A 1:55.60 3×3 single to start from.
Competitions
- Japan Open 2008 · 4 Oct 2008
- Kashiwa Open 2008 · 5 May 2008
- Osaka Open 2008 · 29 Mar 2008 — 1 personal best set
- Japanese Championship 2006 · 12 Nov 2006 — 1 personal best set
- Tokyo Open 2006 · 30 Jul 2006 — 1 personal best set
- Japanese Championship 2005 · 3 Sep 2005
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.
- Hiroto Ueda (上田浩登) — met in 8 rounds, finished ahead once
- Takeshi Akuzawa (阿久沢剛史) — met in 7 rounds, finished ahead once
- Fumiki Koseki (古関章記) — met in 7 rounds, finished ahead once
Next targets
- A sub-5 2×2 single — 73,413 people have one; it is 0.41 away.
- A sub-20 Clock single — 20,707 people have one; it is 0.15 away.
Targets move as he improves.