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The Middle Three
People → Mongolia → Buyandelger Khaschuluun (Буяндэлгэр Хасчулуун)

People · Mongolia

Buyandelger Khaschuluun (Буяндэлгэр Хасчулуун)

2×2 · top 1.2% of 189,179 all-time · competing since April 2023 · 2023KHAS02

Buyandelger Khaschuluun (Буяндэлгэр Хасчулуун) has been competing for 4 years. His best event is the 2×2: a personal-best single of 1.25, set at Rubik's WCA Asian Championship 2024, puts him in the top 1.2% of the 189,179 people who have ever been ranked in the event, and 9th in Mongolia. Until November 2008, no official 2×2 solve in the world had been that fast. Across 27 competitions since April 2023, he has put 827 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 14% around a typical one; 68% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 51.08 in April 2023 to 8.63, an 83% improvement. Buyandelger has entered 27 competitions, more competitions than 98% of everyone who has ever competed.

2×2
best event — top 1.2% of 189,179 all-time
1.25
signature single · Rubik's WCA Asian Championship 2024
827
official solves on the record
14%
solve-to-solve spread · wider than 68% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingMongolia
2×21.252.61
top 1.2%9 / 1,734
Pyraminx2.583.49
top 2.4%18 / 1,585
3×38.6310.49
top 4.0%62 / 2,024
Skewb2.895.23
top 4.5%14 / 331
3×3 one-handed15.9219.59
top 10.1%19 / 149
Megaminx1:05.991:12.12
top 13.4%17 / 62
4×443.7847.84
top 16.8%53 / 204
5×51:23.011:35.84
top 21.7%31 / 90
Clock10.6114.13
top 28.0%30 / 144
6×63:20.763:24.31
top 51.0%19 / 27
Square-143.451:23.00
top 69.3%27 / 40
7×76:24.64—
early days — 1 solve16 / 16

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

Ulaanbaatar Spring 2023: 51.08Mongolian Championship 2023: 36.26Zamiin-Uud Open 2023: 23.43Ulaanbaatar Cubing Challenge Jan 2024: 19.05Ulaanbaatar Cubing Challenge Feb 2024: 13.80Ulaanbaatar Spring 2024: 18.01MR Ulaanbaatar 2024: 14.97Ulaanbaatar Cubing Challenge Jun 2024: 17.51GAN Mongolian Open 2024: 12.62QY Mongolian Championship 2024: 14.11Rubik's WCA Asian Championship 2024: 12.26Ulaanbaatar Winter 2024: 14.30CubingMGL Lunar New Year 2025: 11.50Ulaanbaatar Spring 2025: 11.09Ulaanbaatar Nomad Mazaalai 2025: 11.49Bayankhongor Open 2025: 10.42Darkhan Kodomo Cup 2025: 9.47Govi-Altai Cube Day 2025: 10.81Umnugovi Cube Day 2025: 11.36Darkhan Kodomo Winter Cup 2025: 9.63Sainshand Cup 2025: 9.80Ulaanbaatar Spring 2026: 8.63Govi-Altai Cup 2026: 9.88Bayankhongor Cup 2026: 9.33Zamiin-Uud Cup 2026: 9.33Dornogovi Toya Cup 2026: 8.76Mongolian Open 2026: 9.458.6351.081 Apr 20233 Oct 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 2×2 single — 1,050 people have one; it is 0.25 away.
  • A sub-2 Pyraminx single — 1,497 people have one; it is 0.58 away.

Targets move as he improves.