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).

3x3x3 Cube

# Name Best Average Representing Solves
1 Avirup Das 7.09 7.32 Bangladesh 7.177.667.099.617.13
2 Muntazim Billah Nazif 7.74 8.66 Bangladesh 8.618.157.7411.499.21
3 SM Abeer Ullah 7.40 8.72 Bangladesh 8.247.4010.449.838.10

2x2x2 Cube

# Name Best Average Representing Solves
1 Hasnine Rashid 1.55 2.03 Bangladesh 1.552.633.331.801.65
2 Avirup Das 3.02 3.39 Bangladesh 3.323.373.483.024.41
3 Muntazim Billah Nazif 2.69 3.43 Bangladesh 3.505.123.992.692.80

4x4x4 Cube

# Name Best Average Representing Solves
1 Avirup Das 30.04 32.85 Bangladesh 32.3432.4033.8237.0430.04
2 Arnab Banik 30.05 32.90 Bangladesh 31.4032.1430.0535.1736.21
3 Mazba Hossain 34.10 37.96 Bangladesh 36.9641.7236.8934.1040.02

5x5x5 Cube

# Name Best Average Representing Solves
1 Arnab Banik 56.80 59.50 NR Bangladesh 56.801:01.571:03.2559.9057.04
2 Avirup Das 53.51 1:02.62 Bangladesh 53.511:04.211:00.151:07.451:03.49
3 Mosfikul Islam 1:02.04 1:04.68 Bangladesh 1:04.321:06.361:02.041:03.351:09.27

6x6x6 Cube

# Name Best Average Representing Solves
1 Arnab Banik 2:05.02 2:07.49 Bangladesh 2:08.262:05.022:09.20
2 Mazba Hossain 1:54.82 2:08.03 Bangladesh 2:19.042:10.231:54.82
3 Avirup Das 2:08.50 2:12.53 Bangladesh 2:14.302:14.792:08.50

7x7x7 Cube

# Name Best Average Representing Solves
1 Arnab Banik 3:01.93 NR 3:15.67 NR Bangladesh 3:01.933:09.303:35.77
2 Arash Zuhayr Udoy 3:08.89 3:24.50 Bangladesh 3:08.893:48.853:15.75
3 Mazba Hossain 3:26.19 3:35.53 Bangladesh 3:36.803:43.613:26.19

3x3x3 Blindfolded

# Name Best Average Representing Solves
1 SM Abeer Ullah 40.41 NR DNF Bangladesh 40.41DNFDNF
2 Adrito Ghosh 1:37.00 DNF Bangladesh 2:20.91DNF1:37.00
3 Tofael Ahmed Akib 1:52.17 DNF Bangladesh 1:52.17DNFDNF

Megaminx

# Name Best Average Representing Solves
1 Mosfikul Islam 34.46 NR 38.61 NR Bangladesh 34.4640.4238.5836.8346.53
2 Avirup Das 56.34 1:00.42 Bangladesh 57.141:03.0556.341:01.081:05.12
3 SM Abeer Ullah 58.16 1:03.85 Bangladesh 58.941:01.9558.16DNF1:10.65

Pyraminx

# Name Best Average Representing Solves
1 Avirup Das 2.20 3.75 Bangladesh 4.983.702.204.253.30
2 Mosfikul Islam 2.66 5.38 Bangladesh 5.682.664.756.355.70
3 Muntazim Billah Nazif 3.71 5.61 Bangladesh 9.664.983.714.956.91

5x5x5 Blindfolded

# Name Best Average Representing Solves
1 SM Abeer Ullah 17:23.00 NR DNF Bangladesh 19:57.00DNF17:23.00
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