People · India
Rupangkan Mazumdar
Skewb · top 4.7% of 73,281 all-time · competing since September 2018 · 2018MAZU07
Rupangkan Mazumdar has been competing for 8 years. His best event is the Skewb: a personal-best single of 2.94, set at Guwahati Summer Open 2019, puts him in the top 4.7% of the 73,281 people who have ever been ranked in the event, and 108th in India. Until February 2014, no official Skewb solve in the world had been that fast. Across 6 competitions since September 2018, he has put 304 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 14% around a typical one; 65% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 15.56 in September 2018 to 9.68, a 38% improvement. Rupangkan 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 | India | |
|---|---|---|---|---|---|
| Skewb | 2.94 | 6.11 | top 4.7% | 108 / 3,524 | |
| 3×3 | 9.68 | 11.60 | top 6.6% | 702 / 20,018 | |
| Pyraminx | 4.46 | 5.92 | top 10.0% | 569 / 8,934 | |
| 3×3 one-handed | 16.96 | 23.47 | top 12.5% | 417 / 4,516 | |
| 2×2 | 3.03 | 3.83 | top 14.6% | 1,203 / 12,146 | |
| 4×4 | 45.93 | 53.66 | top 19.5% | 542 / 4,186 | |
| Megaminx | 1:21.72 | 1:27.95 | top 22.9% | 224 / 1,443 | |
| Square-1 | 18.47 | 23.78 | top 24.5% | 159 / 805 | |
| 5×5 | 2:01.83 | 2:10.22 | top 50.3% | 654 / 1,525 | |
| 3×3 Fewest Moves | 41 moves | — | early days — 3 solves | 252 / 600 | |
| 3×3 blindfolded | 3:27.78 | — | early days — 3 solves | 309 / 598 |
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
- 16 Jul 2023First sub-10 3×3: 9.68 at Guwahati Summer Cube Open 2023.
- 28 Dec 2019Three personal bests in one day at 5th Guwahati Open 2019.
- 14 Sep 2019Six personal bests in one day at 1st Jorhat Open 2019.
- 11 May 2019Ten personal bests in one day at Guwahati Summer Open 2019.
- 10 Nov 2018First sub-15 3×3: 13.92 at 1st Dibrugarh Open 2018.
- 10 Nov 2018Four personal bests in one day at 1st Dibrugarh Open 2018.
Competitions
- Guwahati Summer Cube Open 2023 · 16 Jul 2023 — 2 personal bests set
- 5th Guwahati Open 2019 · 28 Dec 2019 — 3 personal bests set
- 1st Jorhat Open 2019 · 14 Sep 2019 — 6 personal bests set
- Guwahati Summer Open 2019 · 11 May 2019 — 10 personal bests set
- 1st Dibrugarh Open 2018 · 10 Nov 2018 — 4 personal bests set
- 4th Guwahati Open 2018 · 1 Sep 2018 — 1 personal best set
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.
- Aaikham Borgohain — met in 52 rounds, finished ahead 24 times
- Nayan Jyoti Das — met in 52 rounds, finished ahead 17 times
- Kaushik Sarma — met in 46 rounds, finished ahead 23 times
Next targets
- A sub-2 Skewb single — 1,013 people have one; it is 0.94 away.
- A sub-8 3×3 single — 7,931 people have one; it is 1.68 away.
Targets move as he improves.