Silent Korea Open 2025

Date
Aug 23 - 24, 2025
City
서울특별시 (Seoul), Republic of Korea
Venue

시립보라매청소년센터 (Boramae Youth Center)

Address
서울특별시 동작구 여의대방로20길 61 (61, Yeouidaebang-ro 20-gil, Dongjak-gu, Seoul)
Details

큰나무동 207호 (Room 207, Keunnamu-dong)

Contact

Contact KCCU via email

Organizers
Jihun Yang (양지훈), Jonghyun Choi (최종현), and 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

본 대회는 3x3x3 종목이 없습니다.

참관객 제한이 존재합니다.

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

모든 참가자는 WCA 규정을 숙지하여야 합니다.

WCA 규정 1e2와 1f2에 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.

There is no 3x3x3 event at this competition.

There is a Spectator Limit.

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 must 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
Competitors
45
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 50 competitors.
The base registration fee for this competition is ₩25,000 (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.
Spectators are only permitted as companions of competitors.
Competitors may bring at most 1 guest.

대회 참가 신청은 이곳에서 진행됩니다 (카드 결제 또는 간편 결제 가능).
참가 신청 승인은 선착순으로 진행되며, 정원에 들지 못하면 대기자 명단에 등록됩니다.
참가 신청 후 참가자 명단 혹은 대기자 명단에서 본인의 이름을 확인하십시오.
두 종목의 추가 비용이 동일하더라도 종목 변경은 가능하지 않습니다. 이 경우, 종목 추가와 종목 취소를 각각 별도로 진행하셔야 합니다.

참가비 관련 안내

  • 대회 참가비: 기본료 20,000원, 종목당 5,000원
    • 예) 2 종목은 20,000원 + 5,000원 X 2 = 30,000원
  • 한국큐브문화진흥회 정회원은 대회 종료 후 기본료가 환급됩니다.
  • 관람객 비용: 무료

환불 규정

  • 취소한 종목은 종목 비용의 50%가 환불됩니다.
  • 전 종목을 취소하면 대회 참가 취소로 간주합니다 (종목 비용의 50%만 환불되며 기본료는 환불되지 않습니다).
  • 최종적으로 참가 신청이 승인되지 않은 선수만 기본료와 종목 비용이 전액 환불 됩니다.
  • 비고: 환불 처리에 소요되는 기간은 환불 신청일로부터 최대 1주일입니다.

You can register for this competition here (Accepted forms of payment: credit/debit cards and digital wallets).
Registrations are accepted on a first-come, first-served basis. You will be placed on the waiting list if you don't make the competitor list.
After registration, please check your name on the competitor list or the waiting list.
You cannot switch one event for another one even if the costs match; this must be done by making two separate requests, adding one event and removing one event.

Payment Details

  • Registration fee: Default fee 20,000 KRW, and 5,000 KRW for each event
    • ex) For 2 events, 20,000 KRW + 5,000 KRW * 2 = 30,000 KRW
  • Default fee will be refunded for KCCU members
  • Spectator fee: FREE

Refund Policy

  • If a competitor cancels an event, then only 50% of the event fee will be refunded.
  • If a competitor cancels all events, then this will be considered canceling the entire competition (You will get a 50% refund of all event fees, but not the default fee).
  • You are eligible for a full refund (default fee + event fees) only if you did not make the competitor list.
  • Note: Refunds may take up to one week to get processed.
Highlights
Click here to display the highlights of the competition.

Asian records: Yucheng Chen (陈裕铖)‎ 3x3x3 Multi-Blind 54/59 57:26 (single).

An JiWan (안지완) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
4x4x4 Blindfolded Final 4 5:49.69 6:10.62 Republic of Korea 5:49.696:02.156:40.02
First round 4 3:54.20 DNF Republic of Korea 4:26.53DNF3:54.20
3x3x3 Multi-Blind Final 10 10/15 57:21 Republic of Korea DNS10/15 57:21

Beomseo Jeon (전범서) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves First round 10 31 35.33 Republic of Korea 314431
5x5x5 Blindfolded Final 6 DNF DNF Republic of Korea DNFDNFDNS
3x3x3 Multi-Blind Final 21 DNF Republic of Korea DNFDNS

Choi Goho (최고호) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 12 34 40.00 Republic of Korea 344145
First round 25 35 DNF Republic of Korea DNF3935
4x4x4 Blindfolded First round 15 DNF DNF Republic of Korea DNFDNFDNF
5x5x5 Blindfolded Final 6 DNF DNF Republic of Korea DNFDNFDNF
3x3x3 Multi-Blind Final 21 DNF Republic of Korea DNFDNS

Daisuke Kochi (幸地大輔) - Japan WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 18 39 DNF Japan 39DNFDNF
First round 24 26 DNF Japan 26DNFDNF
3x3x3 Multi-Blind Final 21 DNF Japan DNFDNF

Dohyun Kim (김도현) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 16 25 DNF Republic of Korea 25DNF26
First round 22 22 DNF Republic of Korea 2422DNF
3x3x3 Multi-Blind Final 21 DNF Republic of Korea DNFDNF

DongSoo Park (박동수) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 5 21 24.00 Republic of Korea 252621
First round 23 23 DNF Republic of Korea 2324DNF
4x4x4 Blindfolded Final 7 DNF DNF Republic of Korea DNFDNFDNF
First round 7 4:15.65 4:41.52 Republic of Korea 4:51.494:57.434:15.65
5x5x5 Blindfolded Final 4 12:39.00 DNF Republic of Korea DNFDNF12:39.00
3x3x3 Multi-Blind Final 9 6/6 22:06 Republic of Korea 6/6 22:067/10 49:32

Haruka Kitamura (北村晴香) - Japan WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 17 27 DNF Japan 3027DNF
First round 8 27 31.00 Japan 273927
4x4x4 Blindfolded Final 5 7:28.85 DNF Japan DNFDNF7:28.85
First round 9 5:18.09 DNF Japan 5:18.09DNFDNF
5x5x5 Blindfolded Final 2 9:31.01 DNF Japan 9:31.0110:14.00DNF
3x3x3 Multi-Blind Final 7 14/17 46:36 Japan 14/17 46:3613/17 49:12

Hayul Chang (장하율) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves First round 31 DNF DNF Republic of Korea DNFDNFDNS

Hwanhui Choi (최환희) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves First round 21 52 53.33 Republic of Korea 525355

Hyeok Yang (양혁) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
4x4x4 Blindfolded First round 15 DNF DNF Republic of Korea DNFDNFDNF
5x5x5 Blindfolded Final 6 DNF DNF Republic of Korea DNFDNFDNS
3x3x3 Multi-Blind Final 11 8/12 50:24 Republic of Korea 6/12 49:428/12 50:24

Hyunjo Kim (김현조) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves First round 29 50 DNF Republic of Korea DNFDNF50
4x4x4 Blindfolded First round 14 23:16.00 DNF Republic of Korea 23:16.00DNSDNS
5x5x5 Blindfolded Final 6 DNF DNF Republic of Korea DNFDNFDNS
3x3x3 Multi-Blind Final 21 DNF Republic of Korea DNFDNF

Ilkyoo Choi (최일규) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves First round 26 40 DNF Republic of Korea DNS40DNF

Inyoung Oh (오인영) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 20 46 DNF Republic of Korea 4650DNF
First round 18 46 50.00 Republic of Korea 545046
3x3x3 Multi-Blind Final 21 DNF Republic of Korea DNFDNF

Jake Park - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
4x4x4 Blindfolded First round 15 DNF DNF Republic of Korea DNFDNFDNS
3x3x3 Multi-Blind Final 14 4/5 36:11 Republic of Korea 3/4 30:524/5 36:11

Jihun Yang (양지훈) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 23 DNF DNF Republic of Korea DNFDNFDNF
First round 6 24 27.67 Republic of Korea 282431
4x4x4 Blindfolded First round 15 DNF DNF Republic of Korea DNFDNFDNS
5x5x5 Blindfolded Final 6 DNF DNF Republic of Korea DNFDNSDNS

Jimin Kim (김지민) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
4x4x4 Blindfolded First round 13 14:23.00 DNF Republic of Korea DNF14:23.00DNS
3x3x3 Multi-Blind Final 20 3/6 41:03 Republic of Korea DNS3/6 41:03

Jonghyun Choi (최종현) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
4x4x4 Blindfolded Final 7 DNF DNF Republic of Korea DNFDNFDNF
First round 8 4:47.24 DNF Republic of Korea DNFDNF4:47.24
5x5x5 Blindfolded Final 6 DNF DNF Republic of Korea DNFDNFDNF
3x3x3 Multi-Blind Final 2 29/33 56:30 Republic of Korea 29/33 56:3029/38 56:42

Jonghyun Kim (김종현) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
4x4x4 Blindfolded First round 15 DNF DNF Republic of Korea DNFDNFDNF
5x5x5 Blindfolded Final 6 DNF DNF Republic of Korea DNFDNFDNF
3x3x3 Multi-Blind Final 21 DNF Republic of Korea DNFDNF

Junhyuk Hyung (형준혁) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Multi-Blind Final 21 DNF Republic of Korea DNFDNF

Juwon Yeom (염주원) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 13 40 46.33 Republic of Korea 405148
First round 16 42 44.67 Republic of Korea 454742

Keunsoo Heo (허근수) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 19 44 DNF Republic of Korea 4446DNF
First round 17 42 45.67 Republic of Korea 494246

Kim Eden (김이든) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 21 47 DNF Republic of Korea DNF47DNF
First round 19 48 50.33 Republic of Korea 485053
4x4x4 Blindfolded Final 7 DNF DNF Republic of Korea DNFDNFDNF
First round 11 10:05.00 DNF Republic of Korea 13:20.0010:05.00DNS
3x3x3 Multi-Blind Final 17 2/3 15:54 Republic of Korea 2/3 15:543/6 28:20

Kim Minjong (김민종) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 21 47 DNF Republic of Korea 4749DNF
First round 15 40 44.00 Republic of Korea 404844

Ko Youngjin (고영진) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 15 24 DNF Republic of Korea DNFDNF24
First round 9 32 34.00 Republic of Korea 363432
4x4x4 Blindfolded Final 6 7:39.56 DNF Republic of Korea DNF7:39.56DNF
First round 10 6:13.43 DNF Republic of Korea DNF8:46.786:13.43
5x5x5 Blindfolded Final 6 DNF DNF Republic of Korea DNFDNFDNF
3x3x3 Multi-Blind Final 4 17/19 58:35 Republic of Korea 17/19 58:35DNF

Kyeongmin Choi (최경민) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 1 19 22.00 Republic of Korea 232419
First round 2 22 23.33 Republic of Korea 242224
4x4x4 Blindfolded Final 3 3:54.01 DNF Republic of Korea DNF3:54.01DNF
First round 3 3:51.46 4:05.03 Republic of Korea 3:58.033:51.464:25.60
5x5x5 Blindfolded Final 3 11:15.00 DNF Republic of Korea 11:15.00DNFDNF
3x3x3 Multi-Blind Final 21 DNF Republic of Korea DNSDNF

Lim JiHoo (임지후) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Multi-Blind Final 19 4/7 43:24 Republic of Korea 4/7 43:24DNF

Minseo Gu (구민서) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 9 33 36.67 Republic of Korea 393833
First round 13 41 42.33 Republic of Korea 414343
4x4x4 Blindfolded First round 15 DNF DNF Republic of Korea DNFDNSDNS

Nahyun Jung (정나현) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
4x4x4 Blindfolded Final 7 DNF DNF Republic of Korea DNFDNFDNF
First round 5 3:56.74 DNF Republic of Korea DNFDNF3:56.74
3x3x3 Multi-Blind Final 6 13/14 55:51 Republic of Korea 13/14 55:519/14 1:00:00

Seryoung Kim - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Multi-Blind Final 21 DNF Republic of Korea DNFDNS

SeungWoon Lee (이승운) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 10 38 39.67 Republic of Korea 384140
First round 11 29 36.33 Republic of Korea 404029
4x4x4 Blindfolded Final 7 DNF DNF Republic of Korea DNFDNFDNF
First round 12 11:24.00 DNF Republic of Korea 11:24.00DNFDNF
3x3x3 Multi-Blind Final 13 4/5 30:29 Republic of Korea 2/4 22:274/5 30:29

Shuto Ueno (上野柊斗) - Japan WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 1 19 22.00 Japan 242319
First round 1 22 22.00 Japan 222222

Song Seunggi (송승기) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
4x4x4 Blindfolded First round 15 DNF DNF Republic of Korea DNFDNFDNF
5x5x5 Blindfolded Final 5 20:55.00 DNF Republic of Korea DNFDNF20:55.00

Syunei Miyauchi (宮内俊英) - Japan WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 7 24 24.67 Japan 252524
First round 4 24 25.33 Japan 252427
4x4x4 Blindfolded First round 15 DNF DNF Japan DNFDNSDNS
5x5x5 Blindfolded Final 6 DNF DNF Japan DNFDNFDNS
3x3x3 Multi-Blind Final 16 4/6 49:36 Japan 4/6 49:36DNF

Takumi Tamura (田村匠) - Japan WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 3 21 23.33 Japan 252421
First round 7 24 28.67 Japan 243329
5x5x5 Blindfolded Final 6 DNF DNF Japan DNFDNSDNS

Teruki Tamura (田村旭輝) - Japan WCA profile

Event Round # Best Average Representing Solves
4x4x4 Blindfolded Final 2 3:14.88 DNF Japan 3:14.88DNFDNF
First round 6 4:01.82 4:23.50 Japan 4:01.825:00.554:08.13
5x5x5 Blindfolded Final 6 DNF DNF Japan DNFDNFDNF
3x3x3 Multi-Blind Final 5 17/21 51:59 Japan 15/21 51:4717/21 51:59

Yeeun Park (박예은) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Multi-Blind Final 12 7/10 55:50 Republic of Korea 7/10 55:50DNS

Yeojun Hwang (황여준) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 11 39 39.67 Republic of Korea 394040
First round 14 41 43.00 Republic of Korea 414444

Yeon Kyun Park (박연균) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 8 30 32.00 Republic of Korea 303135
First round 12 32 37.67 Republic of Korea 324833
4x4x4 Blindfolded Final 1 1:46.04 DNF Republic of Korea 1:50.621:46.04DNF
First round 1 1:30.48 NR 1:58.11 NR Republic of Korea 1:30.482:35.081:48.77
5x5x5 Blindfolded Final 1 4:16.93 4:56.25 NR Republic of Korea 4:26.514:16.936:05.32
3x3x3 Multi-Blind Final 3 25/34 1:00:00 Republic of Korea 25/34 1:00:0024/33 54:44

Yerim Bae (배예림) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves First round 27 44 DNF Republic of Korea DNS44DNS
3x3x3 Multi-Blind Final 18 2/3 21:51 Republic of Korea DNF2/3 21:51

Yiwei Liu (刘伊玮) - China WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 4 22 23.67 China 262322
First round 3 22 24.67 China 282224

YongGeal Lee (이용걸) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves First round 28 48 DNF Republic of Korea 54DNF48
4x4x4 Blindfolded First round 15 DNF DNF Republic of Korea DNFDNFDNS
5x5x5 Blindfolded Final 6 DNF DNF Republic of Korea DNFDNFDNS
3x3x3 Multi-Blind Final 8 8/8 55:11 Republic of Korea DNF8/8 55:11

YuGeon Shin - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves First round 30 54 DNF Republic of Korea DNF5854

Yucheng Chen (陈裕铖) - China WCA profile

Event Round # Best Average Representing Solves
4x4x4 Blindfolded First round 2 2:12.42 DNF China 2:12.42DNFDNF
5x5x5 Blindfolded Final 6 DNF DNF China DNFDNFDNF
3x3x3 Multi-Blind Final 1 54/59 57:26 AsR China 53/59 57:4854/59 57:26

Yul-Hok Sung (성열학) - Republic of Korea WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 14 40 48.67 Republic of Korea 416540
First round 20 49 52.00 Republic of Korea 495156

Yuto Morishita (森下優斗) - Japan WCA profile

Event Round # Best Average Representing Solves
3x3x3 Fewest Moves Final 6 23 24.67 Japan 262325
First round 5 22 26.33 Japan 252232
4x4x4 Blindfolded First round 15 DNF DNF Japan DNFDNSDNS
3x3x3 Multi-Blind Final 15 2/2 11:10 Japan 2/2 11:10DNF
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