Sofia Open 2018

May 12, 2018
Sofia, Bulgaria

Technical University of Sofia

ул. „Росарио“, 1756 София (1 Rosario street, 1756 Sofia)

ТУ-София, Блок 3. (Campus 3), room 3239

Organization team
Borislav Marchovski, Mihai Căpăţinescu, Plamen Mahladzhanov, and Todor Enikov
WCA Delegate
Mihai Căpăţinescu

Second WCA competition in Bulgaria. Maximum 1 guest per competitor. Registration fee to be paid in the venue on the day of the competition.
The address of the Technical university of Sofia is 8 Kliment Ohridski boulevard, but the entrance of the venue is on Rosario street.

Второ официално състезание на WCA в България. Допустим е максимум 1 гост с всеки състезател. Таксата за участие се заплаща в деня на състезанието, на специално обособена за целта маса.
Адресът на ТУ-София е: гр. София, бул. Климент Охридски 8, но входът за събитието е откъм улица Розарио

Main event
Registration period

Online registration opened and closed .

Registration requirements
This competition is over, click here to display the registration requirements it used.
Create a WCA account here if you don't have one.
If this is not your first competition, associate your WCA ID to your WCA account here.
Register for this competition here.
There is a competitor limit of 100 competitors.
The base registration fee for this competition is 8 лв. (Bulgarian Lev).

To complete your registration you have to confirm your spot by answering in 48 hours at the confirmation mail that we will send two weeks before the competition. If the limit will be reached and you didn't reply to the confirmation mail you will be deleted from the registration list.

За да се регистрирате, трябва да потвърдите участието си, отговаряйки (в срок от 48 часа) на e-mail-ът, който ще бъде изпратен 2 седмици преди състезанието. Ако лимитът състезатели бъде достигнат и не сте потвърдили своето участие, ще бъдете изтрити от списъка на регистрираните участници!

Click here to display the highlights of the competition.

Ivaylo Tanev won with an average of 8.49 seconds in the 3x3x3 Cube event. Kévin Cagnon finished second (10.78) and Petar Petrov Konstantinov finished third (11.82).

Event Name Best Average Citizen of Solves
3x3x3 Cube Ivaylo Tanev 7.37 NR 8.49 NR Bulgaria 11.388.768.098.637.37
2x2x2 Cube Kévin Cagnon 2.01 2.68 France 3.464.162.182.412.01
4x4x4 Cube Kévin Cagnon 31.21 37.25 France 34.5138.4931.2138.7449.05
3x3x3 One-Handed Petar Petrov Konstantinov 20.80 23.32 Bulgaria 24.2123.1525.4222.6120.80
Clock Borislav Marchovski 14.31 16.03 NR Bulgaria 14.6016.7216.76DNF14.31
Pyraminx Ivaylo Ivaylov Vichev 6.19 8.46 Bulgaria 10.809.166.199.796.44
Skewb Karlos Ngyuen 4.34 NR 5.85 NR Bulgaria 6.945.335.294.348.91
Event Round Format Time limit Cutoff Proceed
3x3x3 Cube First round Ao5 5:00.00 Top 50 advance to next round
Second round Ao5 5:00.00 Top 10 advance to next round
Final Ao5 5:00.00
2x2x2 Cube Final Ao5 5:00.00
4x4x4 Cube Final Bo2 / Ao5 5:00.00 2 attempts to get < 2:00.00
3x3x3 One-Handed Final Bo2 / Ao5 5:00.00 2 attempts to get < 1:00.00
Clock Final Bo2 / Ao5 5:00.00 2 attempts to get < 1:30.00
Pyraminx Final Ao5 5:00.00
Skewb Final Ao5 5:00.00

Saturday May 12, 2018

Event Round Format Limit (min) Competitors Start time End time
Registration 08:00 12:30
Clock Combined Final best of 2, average of 5 (cut-off 1:30) 5 min 08:30 09:30
4x4x4 Cube Combined Final best of 2, average of 5 (cut-off 2:00) 5 min 09:30 10:45
3x3x3 OneHanded Combined Final best of 2, average of 5 (cut-off 1:00) 5 min 10:45 11:45
3x3x3 First round average of 5 5 min 11:45 13:30
Lunch 13:30 14:30
Pyraminx Final average of 5 5 min 14:30 15:30
Skewb Final average of 5 5 min 15:30 16:15
3x3x3 Cube Second round average of 5 5 min 50 16:15 17:15
2x2x2 Cube Final average of 5 5 min 17:15 18:00
3x3x3 Cube Final average of 5 5 min 10 18:00 18:45
Winner's Ceremony 18:45 19:20
Clean the room 19:20 20:10

Time limit

If you reach the time limit during your solve, the judge will stop you and your result will be DNF (see Regulation A1a4).


The result to beat to proceed to the second phase of a cutoff round (see Regulation 9g).


The format describes how to determine the ranking of competitors based on their results. The list of allowed formats per event is described in Regulation 9b. See Regulation 9f for a description of each format.

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