Uhseo Osong 2025


Date
Nov 15, 2025
City
충청북도 청주시 (Cheongju-si, Chungcheongbuk-do), Republic of Korea
Venue

오송첨단의료산업진흥재단 C&V센터 (KBIO Health C&V Center)

Address
충청북도 청주시 흥덕구 오송읍 오송생명1로 194-41 (194-41, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do)
Details

커뮤니케이션센터 2층 대회의실 (Large Conference Room, 2nd Floor, Communication Center)

Contact

Contact KCCU via email

Organizer
Korea Cube Culture United (한국큐브문화진흥회)
WCA Delegates
Ilkyoo Choi (최일규), Keunsoo Heo (허근수), Ko Youngjin (고영진), Kyeongmin Choi (최경민), and Minseo Gu (구민서)
Download all the competition's details as PDF here.
Information

청주에서 열리는 첫 WCA 대회!

WCA 공인 대회에 처음 참가 하신다면, 참가 신청 전에 첫 참가자 안내 탭과 자주 묻는 질문 탭을 확인하십시오.

모든 참가자가 WCA 규정을 숙지할 것을 강력히 권장합니다.

WCA 규정 1e21f2에 따라, 모든 참가자는 운영진의 요청이 있을 시 스태프 업무를 수행해야 합니다.

원할한 기록 측정을 위하여 대회 참가 안내 영상을 시청하여 주십시오.

원할한 스태프 업무 수행을 위하여 스태프 규정 영상을 시청하여 주십시오.


First WCA competition in Cheongju City!

If this is your first official WCA competition, please read the For New Competitors tab and the Frequently Asked Questions tab before registering.

All competitors are strongly encouraged to be familiar with the WCA Regulations.

Due to WCA Regulations 1e2 and 1f2, all competitors are required to fulfill staff duties at the organizers' request.

Please watch this video to get familiar with WCA official competitions.

Please watch this video to get familiar with staff duties.

Events
Main event
Competitors
136
Registration period

Online registration opened and closed .

Registration requirements
This competition is over, click here to display the registration requirements it used.
Register for this competition here.
There is a competitor limit of 150 competitors.
The base registration fee for this competition is ₩20,000 (South Korean Won).
If your registration is cancelled before you will be refunded 50% of your registration fee.
Registrants on the waiting list may be accepted onto the competitor list until .
If you are a registered competitor you may change your registered events until by contacting the organization team.
No on the spot registrations will be accepted.



대회 참가 신청은 이곳에서 진행됩니다 (카드 결제 및 간편 결제 가능).
참가 신청은 선착순으로 승인되며, 정원 초과 시 대기자 명단에 등록됩니다.
참가 신청 후에는 반드시 참가자 명단 또는 대기자 명단에서 본인의 이름을 확인하십시오.

두 종목의 추가 비용이 동일하더라도 종목 간 변경은 불가능합니다.
이 경우 반드시 종목 추가와 종목 취소를 각각 별도로 진행해야 합니다.

참가비 안내

  • 대회 참가비: 기본료 15,000원 + 종목당 5,000원
    • 예) 2종목 신청 시: 15,000원 + (5,000원 × 2) = 25,000원
  • 한국큐브문화진흥회 정회원은 대회에서 스태프 업무를 성실히 수행할 경우, 대회 종료 후 기본료가 환급됩니다.
  • 관람객 참가비: 무료

환불 규정

  • 대기 명단에 있는 상태에서는 전액 환불되며, 참가자 명단으로 승인된 순간부터는 아래 규정이 적용됩니다.
  • 종목 취소 시: 해당 종목 비용의 50% 환불
  • 전 종목 취소 시: 대회 전체 참가 취소로 간주되며, 종목 비용의 50%만 환불됩니다 (기본료는 환불되지 않습니다).
  • 비고: 환불 처리는 신청일로부터 최대 1주일이 소요될 수 있습니다.

You can register for the competition here (Payment methods: credit/debit cards and digital wallets).
Registrations are approved on a first-come, first-served basis, and if the competitor limit is reached, you will be placed on the waiting list.
After completing your registration, please make sure to check your name on the competitor list or the waiting list.

Even if two events have the same additional fee, switching one event for another is not allowed.
If you wish to change events, please submit a separate request to add an event and cancel an event.

Registration Fees

  • Competition fee: Base fee 15,000 KRW + 5,000 KRW per event
    • Example: For 2 events → 15,000 KRW + (5,000 KRW × 2) = 25,000 KRW
  • KCCU members who faithfully fulfill their staff duties during the competition will have the base fee refunded after the competition ends.
  • Spectator fee: Free

Refund Policy

  • Competitors on the waiting list are eligible for a full refund. Once accepted to the competitor list, the following rules apply:
  • Event cancellation: 50% of the event fee will be refunded.
  • Canceling all events: Considered as a full competition withdrawal. In this case, only 50% of the event fees will be refunded (the base fee is non-refundable).
  • Note: Refund processing may take up to one week from the date of the refund request.
Highlights
Click here to display the highlights of the competition.

Seung Hyuk Nahm (남승혁) won with an average of 6.55 seconds in the 3x3x3 Cube event. Kyeongmin Choi (최경민) finished second (7.41) and Jeff Park finished third (7.49).

3x3x3 Cube

# Name Best Average Representing Solves
1 Seung Hyuk Nahm (남승혁) 6.15 6.55 Republic of Korea 6.156.256.708.946.70
2 Kyeongmin Choi (최경민) 6.07 7.41 Republic of Korea 8.267.446.077.097.71
3 Jeff Park 7.15 7.49 United States 7.237.157.528.547.71

2x2x2 Cube

# Name Best Average Representing Solves
1 Kyeongmin Choi (최경민) 1.17 1.46 Republic of Korea 1.771.821.171.271.33
2 Seung Hyuk Nahm (남승혁) 1.53 1.77 Republic of Korea 1.852.611.661.801.53
3 Jeon Si Hyeon (전시현) 1.80 2.42 Republic of Korea 1.802.452.742.074.42

4x4x4 Cube

# Name Best Average Representing Solves
1 Seung Hyuk Nahm (남승혁) 20.22 23.80 Republic of Korea 27.7122.5924.7520.2224.07
2 DongSoo Park (박동수) 21.42 25.29 Republic of Korea 29.1928.0725.3222.4721.42
3 Kyeongmin Choi (최경민) 27.13 28.02 Republic of Korea 34.6427.4427.1328.2428.37

3x3x3 Blindfolded

# Name Best Average Representing Solves
1 Jeff Park 16.69 DNF United States 16.6917.21DNF
2 JiHun Yim (임지훈) 21.36 DNF Republic of Korea DNF21.36DNF
3 Yeon Kyun Park (박연균) 22.06 27.31 Republic of Korea 24.5222.0635.35

3x3x3 One-Handed

# Name Best Average Representing Solves
1 Yoochan Hong (홍유찬) 7.62 9.13 Republic of Korea 11.847.628.579.489.35
2 Seung Hyuk Nahm (남승혁) 10.31 11.12 Republic of Korea 10.7111.3110.3111.3511.68
3 Hyunseung Ko (고현승) 11.36 11.97 Republic of Korea 12.0311.9615.0011.9211.36
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