Chattogram Cube Open 2025


Date
Sep 26 - 27, 2025
City
Chattogram, Bangladesh
Venue

Presidency International School

Address
51, Panchlaish R/A, Chattogram, Bangladesh
Details

8th and 9th Floor

Contact

Official Team Contact

Organizers
Farhan Labib, Hasnine Rashid, Kazi Nehan, SM Abeer Ullah, Tofael Ahmed Akib, and Yamin Wahed
WCA Delegates
Arnab Banik and Farhan Labib
Download all the competition's details as PDF here.
Information

First Time Participants have to bring an ID card with their Date of Birth for identity verification.

Events
Main event
Competitors
51
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 ৳600 (Bangladeshi Taka).
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.
On the spot registrations will be accepted if there are remaining spots available, with a base registration fee of ৳800 (Bangladeshi Taka).


Registration and Payment of Fees

Early bird:

29 August - 7 September 2025
Participating upto 5 events: BDT 600
6 to 10 events: BDT 700

Late bird:

7 September - 21 September 2025
Participating upto 5 events: BDT 700
6 to 10 events: BDT 800

Spot Registration (Only if the participant limit is not reached):

26 September (8AM-9AM)
Participating upto 5 events: BDT 800
6 to 10 events: BDT 900


Duration 1-5 Events 6-10 Events
Early Bird 29 August - 7 September BDT 600 BDT 700
Late Bird 7 Sepember - 21 September BDT 700 BDT 800
On Spot 26 September (8AM - 9AM) BDT 800 BDT 900

  • The payments must be made in the specified duration to be part of a specific category (Early Bird or Late Bird).
  • Registering on a certain duration on the website without payment would not make one a part of that category, the duration in which payment is made, is the designated category for the competitor.
  • Any payment of fees on the competition day would be considered as "On Spot' registration, even if one has registered online before.

If the limit is reached, a waiting list will be started. During this period, if someone cancels their registration, the first person (81st person) to pay from the waiting list while the registrations are open will be approved. If the registration time period is over, then the competitor has to pay on the spot according to the spot payment fee structure.

If someone pays but can't be approved due to the limit being reached, then the competitor might have a chance of getting approved if someone who is in the approved list cancels their registration. Otherwise, the unapproved person would be refunded 100% of the registration fee after the comp.

For detailed payment procedure click here

Steps to pay with Bkash

Pay With Your Personal Bkash Account

Using Bkash USSD service (*247#)

  1. Go To Bkash Menu by dialing *247#
  2. Choose option 1 from the menu.
  3. Enter Personal Number: 018 3251 6106 (Tofael Ahmed Akib).
  4. Enter your Total Registration Fee with Bkash Charge.
  5. Enter your personal contact number on Reference.
  6. Enter your Menu Pin to Confirm the Payment.
  7. Send your TrxID (or Trans ID) in a SMS to the number you have sent money to.The text must include - Participant's Name, Participants Personal Mobile Number and the TrxID (or Trans ID).

Using the Bkash App

  1. Log into your Bkash account.
  2. Select Send Money
  3. Enter Personal Number:018 3251 6106 (Tofael Ahmed Akib).
  4. Enter your Total Registration Fee with Bkash Charge.
  5. Enter your personal contact number on Reference.
  6. Enter your Menu Pin to Confirm the Payment.
  7. Send your TrxID (or Trans ID) in a SMS to the number you have sent money to.The text must include - Participant's Name, Participant's Personal Mobile Number and the TrxID (or Trans ID).

PAYMENT PROCEDURE IF YOU DON'T HAVE A BKASH ACCOUNT

  1. Go to your nearest Bkash Agent shop.
  2. Tell him to Cash-In into a personal number.
  3. Use either of the following numbers:018 3251 6106 (Tofael Ahmed Akib).
  4. Tell him to cash-in your Total Registration Fee with Bkash Charge. দোকানদাররা এইটাকে "খরচ" বলে থাকে।
  5. Get the TrxID from the agent.
  6. Send your TrxID (or Trans ID) in a SMS to the number you have sent money to.The text must include - Participant's Name, Participant's Personal Mobile Number and the TrxID (or Trans ID).

A sample SMS:
Name:ABCD EFGH
Num: 017xxxxxxxx
No. of events: 8
TrxID: XXXXXXXX

Do Not Forget To Send the SMS!!

Any requested changes to registration before the deadline will be honored. Your registration is not complete until your name shows up on the list. If you believe you paid and your name isn't showing up, please contact us and we will work it out.

  • Bkash Charge is 2% of the whole amount. Simply multiply your total registration fee by 1.02 to get the final payable amount.

DISCLAIMER: Any Payment on the competition day counts as spot registration and will follow the Spot Registration Fee Structure.See Details. Registration won't be complete if you pay less than the required amount!
CAUTION: Ours is a personal Bkash account.

Highlights
Click here to display the highlights of the competition.

Avirup Das won with an average of 7.32 seconds in the 3x3x3 Cube event. Muntazim Billah Nazif finished second (8.66) and SM Abeer Ullah finished third (8.72).

Event Name Best Average Representing Solves
3x3x3 Cube Avirup Das 7.09 7.32 Bangladesh 7.177.667.099.617.13
2x2x2 Cube Hasnine Rashid 1.55 2.03 Bangladesh 1.552.633.331.801.65
4x4x4 Cube Avirup Das 30.04 32.85 Bangladesh 32.3432.4033.8237.0430.04
5x5x5 Cube Arnab Banik 56.80 59.50 NR Bangladesh 56.801:01.571:03.2559.9057.04
6x6x6 Cube Arnab Banik 2:05.02 2:07.49 Bangladesh 2:08.262:05.022:09.20
7x7x7 Cube Arnab Banik 3:01.93 NR 3:15.67 NR Bangladesh 3:01.933:09.303:35.77
3x3x3 Blindfolded SM Abeer Ullah 40.41 NR DNF Bangladesh 40.41DNFDNF
Megaminx Mosfikul Islam 34.46 NR 38.61 NR Bangladesh 34.4640.4238.5836.8346.53
Pyraminx Avirup Das 2.20 3.75 Bangladesh 4.983.702.204.253.30
5x5x5 Blindfolded SM Abeer Ullah 17:23.00 NR DNF Bangladesh 19:57.00DNF17:23.00

Registration and Payment of Fees

Early bird:

29 August - 10 September 2025
Participating upto 5 events: BDT 600
6 to 10 events: BDT 700

Late bird:

11 September - 23 September 2025
Participating upto 5 events: BDT 700
6 to 10 events: BDT 800

Spot Registration (Only if the participant limit is not reached):

26 September (8AM-9AM)
Participating upto 5 events: BDT 800
6 to 10 events: BDT 900


Duration 1-5 Events 6-10 Events
Early Bird 29 August - 10 September BDT 600 BDT 700
Late Bird 11 Sepember - 23 September BDT 700 BDT 800
On Spot 26 September (8AM - 9AM) BDT 800 BDT 900

  • The payments must be made in the specified duration to be part of a specific category (Early Bird or Late Bird).
  • Registering on a certain duration on the website without payment would not make one a part of that category, the duration in which payment is made, is the designated category for the competitor.
  • Any payment of fees on the competition day would be considered as "On Spot' registration, even if one has registered online before.

If the limit is reached, a waiting list will be started. During this period, if someone cancels their registration, the first person (81st person) to pay from the waiting list while the registrations are open will be approved. If the registration time period is over, then the competitor has to pay on the spot according to the spot payment fee structure.

If someone pays but can't be approved due to the limit being reached, then the competitor might have a chance of getting approved if someone who is in the approved list cancels their registration. Otherwise, the unapproved person would be refunded 100% of the registration fee after the comp.

For detailed payment procedure click here

Steps to pay with Bkash

Pay With Your Personal Bkash Account

Using Bkash USSD service (*247#)

  1. Go To Bkash Menu by dialing *247#
  2. Choose option 1 from the menu.
  3. Enter Personal Number: 018 3251 6106 (Tofael Ahmed Akib).
  4. Enter your Total Registration Fee with Bkash Charge.
  5. Enter your personal contact number on Reference.
  6. Enter your Menu Pin to Confirm the Payment.
  7. Send your TrxID (or Trans ID) in a SMS to the number you have sent money to.The text must include - Participant's Name, Participants Personal Mobile Number and the TrxID (or Trans ID).

Using the Bkash App

  1. Log into your Bkash account.
  2. Select Send Money
  3. Enter Personal Number:018 3251 6106 (Tofael Ahmed Akib).
  4. Enter your Total Registration Fee with Bkash Charge.
  5. Enter your personal contact number on Reference.
  6. Enter your Menu Pin to Confirm the Payment.
  7. Send your TrxID (or Trans ID) in a SMS to the number you have sent money to.The text must include - Participant's Name, Participant's Personal Mobile Number and the TrxID (or Trans ID).

PAYMENT PROCEDURE IF YOU DON'T HAVE A BKASH ACCOUNT

  1. Go to your nearest Bkash Agent shop.
  2. Tell him to Cash-In into a personal number.
  3. Use either of the following numbers:018 3251 6106 (Tofael Ahmed Akib).
  4. Tell him to cash-in your Total Registration Fee with Bkash Charge. দোকানদাররা এইটাকে "খরচ" বলে থাকে।
  5. Get the TrxID from the agent.
  6. Send your TrxID (or Trans ID) in a SMS to the number you have sent money to.The text must include - Participant's Name, Participant's Personal Mobile Number and the TrxID (or Trans ID).

A sample SMS:
Name:ABCD EFGH
Num: 017xxxxxxxx
No. of Events: 8
TrxID: XXXXXXXX

Do Not Forget To Send the SMS!!

Any requested changes to registration before the deadline will be honored. Your registration is not complete until your name shows up on the list. If you believe you paid and your name isn't showing up, please contact us and we will work it out.

  • Bkash Charge is 2% of the whole amount. Simply multiply your total registration fee by 1.02 to get the final payable amount.

DISCLAIMER: Any Payment on the competition day counts as spot registration and will follow the Spot Registration Fee Structure.See Details. Registration won't be complete if you pay less than the required amount!
CAUTION: Ours is a personal Bkash account.

New Competitors

If you are a new competitor, it is important that you are familiar with the Regulations. We have a video that explains the competing procedure which we recommend to watch before attending:.

New competitors must bring some form of ID to show at the competition to confirm the name, the country they wish to compete for, and the date of birth registered with. The usual items of ID that people bring are Passports, National ID card, Birth Certificates, Driver's Licenses, etc. As long as it has your name, date of birth, and country, then it will be fine.

If you have any questions, we recommend that you check the FAQ in case it has been asked before. But you are more than welcome to contact us at the link on the Contact. We also recommend you check out the Cubing Chittagong Facebook page.

Information for All Competitors

  1. Please help judge! As a competitor, your judging assignments are the absolute minimum you should be doing to help out. As second rounds, third rounds and finals have no assigned judges, we really need people to help out whenever available for these. If you are directly asked to judge, please go and judge for the remainder of the round in progress. If you do not comply then we are within our rights to disqualify you from the competition as per Regulation 1e2. If you're a parent you can also get involved with running and judging, it's really easy!
  2. Please note that Carbon-Fiber puzzles are not permitted, and please make sure your cube complies with logo regulations!
  3. When you are competing and have handed in your puzzle, please make sure to be waiting in the designated area so that judges and runners do not have to come searching for you.
  4. Please DO NOT talk about the scrambles or your solutions whilst the round is in progress as per Regulation 2g3.
  5. During blindfolded events, please stay silent within the venue. These events require a high amount of concentration and any noise can be distracting. We will announce when the silence will begin and when you may talk within the venue again.
  6. No flash photography under any circumstance within the venue. It is extremely distracting for competitors.
  7. If you are a spectator, please stay 1.5m away from competitors at all times as per Regulation 7b. If you are filming someone competing, please stay out of the competitor area.
  8. Please treat the venue with respect, put all of your rubbish in bins or take it home with you and keep your area tidy.
  9. There are thousands of puzzles at these events, make sure to keep yours together so you don't lose them! Keeping them in a bag and looking after it at all times is recommended. If you do lose a puzzle, please contact us at the link on the General Info page, it is likely that someone has handed it in to us.
  10. We will be taking videos and photographs of the competition and the environment for our social media page Cubing Chittagong. By attending the competition as a competitor or a guest, you are accepting that you may be filmed or photographed for these purposes.

Venue:

Presidency International School (Middle Campus),
51, Panchlaish R/A, Chattogram, Bangladesh.

Bus service is available from all the places inside Chattogram city.

The nearest Airport is Shah Amanat International Airport, Patenga - Patenga Rd, Chittagong 4205
The nearest Railway station is Chattogram Railway Station.

Transportation

Bus:

From Airport to venue :
1)Take "Metro Probhati" or any Bus from the bus stand that drops to Muradpur. Fare will be 35-45 BDT
2) Take rickshaw from Muradpur to the venue. It takes 5 min. Fare will be 30 BDT.

From Chattogram Railway/ New Market station to venue :
If possible, take Uber/Pathao. Bus route is tricky.
1) Take no. 2 or 3 Bus from the bus stand that drops to Muradpur. Fare will be 15 BDT
2) Take rickshaw from Muradpur to the venue. It takes 5 min. Fare will be 30 BDT.

From AK Khan gate/ Alongkar/Colonel Hat to Venue :
If possible, take Uber/Pathao/Auto rickshaw. Bus route is tricky.
1) Take No.4 or 7 Bus from the bus stand that drops to GEC. Fare will be 15 BDT
2) Then take No.10 bus that drops to Muradpur. Fare will be 10 BDT.
3) Take rickshaw from Muradpur to the venue. It takes 5 min. Fare will be 30 BDT.

CNG:

Hire the CNG for Presidency International School near Passport Office.
1) From Airport to venue ==> 350-400 BDT.
2) From Railway station to venue ==> 120-150 BDT.
3) From AK Khan/ Alongkar/ Colonel Hat to venue ==> 180-200 BDT.
4) From Dampara to venue ==> 100-110 BDT.

Go to the Contact tab if necessary.

There will be certificates for all the participants.
There will be certificates and crests for all the podiums.
There will be certificates and crests for Promising Cubers and Best New Comers.

We will be using WCA Live for live results update. You can find the live results here.

Arnab Banik - 01759 670 494 - abanik@worldcubeassociation.org
Farhan Labib - 01795 454 594 - fa593335i@gmail.com
S.M. Abeer Ullah - 01841 500 254 - abeerullah422@gmail.com

Get updates and knock us at Speedcubing Bangladesh

Join CubistBD group to interact with your fellow cubers!

Cube Shop Partner

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).
A cumulative time limit may be enforced (see Regulation A1a2).

Cutoff

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

Format

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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