Mental Calculation World Cup 2024
Paderborn, Germany, 13-15 September 2024

The best mental calculators from all over the world are invited to the 10th Mental Calculation World Cup 2024.

Date: 13-15 September 2024 (contest: 14/15 September)
Venue: Heinz Nixdorf MuseumsForum (https://www.hnf.de/en/home.html)

Titles and Prizes: All participants will receive certificates.  Successful record attempts will be registered as world record.
The participant with the best total score will be awarded the title "World cup champion – combination". The participant with the best score in the surprise tasks will be awarded the title "World cup champion - most versatile calculator". 
The winners in the categories "addition", "multiplication", "extracting roots", "calendar calculation" will be awarded the title "World cup champion for (category)".
There will be trophies and prizes for the best participants.

More information at: www.recordholders.org/en/events/worldcup/2024/

Problems to solve: Each mental calculator will have to solve tasks in different categories (addition, multiplication, extracting roots, calendar from memory and surprise tasks). 
Examples for problems to be solved in previous competitions can be found on our web site.

Registration: please send registration form (see website) by airmail to:
Ralf Laue, Bamberger Str. 53 a, 04207 Leipzig, Germany or by e-mail to info@recordholders.org.
The deadline for registrations is 15 June 2024. We cannot guarantee that registrations arriving after this deadline can be taken into consideration.
The number of participants is limited to 40. If more people register for the event, the organizer will select the participants who qualify. For improving your chances in the qualification please submit information about previous results at mental calculation events, other mental sports contests and verified achievements with the Memoriad software.
The results achieved should be documented (category, number of correct answers, time). These results must be confirmed by a witness with some background in mental calculation (for example a maths teacher or a university researcher who works in a field close to mathematics). A signed confirmation should be sent with the registration.

Organizational stuff: The participants will not have to pay an entry fee and they will not receive a payment for their participation. However, participants have to pay for accommodation. Affordable hotel offers will be published on the MCWC web site.
Also, accompanying persons will have to pay a fee for catering, etc.
Please contact us soon enough if you need a formal invitation letter for visa purposes. Keep in mind that in some countries visa formalities can take a long time!
Contacts: 
If you have any questions on the MCWC, please contact info@recordholders.org.