News and Resources for Competitive and Advanced Mental Calculation
Daniel Timms 2024 is potentially a huge year for mental calculation. Right now, many people are working behind the scenes to organize the next international competitions—including the first international Memoriad since 2016. Announcements will be made once each competition has confirmed dates. In the meantime, I’m introducing a special challenge for groups. Mental Calculation is often done … Read more
The Junior Mental Calculation World Championship returned to Bielefeld on the 30th September–2nd October, as organized by Caroline Merkel since 2008 [official JMCWC website]. 70 competitors from Algeria, Bosnia & Herzegovina, Bulgaria, the Czech Republic, Germany, Hungary, India, Japan, Pakistan, Serbia, South Africa, the UAE and the UK qualified and attended—some for their first time, while others … Read more
Registrations are now open for a new online mental calculation league! This is organized by Global Mental Calculators’ Association (GMCA)—a new organization run by Sam Engel and a small team of gold medalists in mental calculation, aiming to provide regular opportunities for mental calculators around the world to test their skills against others, without the … Read more
Registration is open for the Junior Mental Calculation World Championship 2023! The event will be held on the 30th September–3rd October 2023 in Bielefeld (Germany). The main competition and the prize ceremony will be on October 2nd, so most people will leave on the morning of the 3rd. Since 2008 this international championship in mental calculation … Read more
The Mental Calculations World Championship (online) 2023 (hosted by the Mind Sports Olympiad as part of their Grand Prix) has just finished, and we have the winners! Out of about 50 entrants, 20 qualified to this semi-final, and the top 8 were invited to the final, held on Monday 6th March 2023. Daniel Timms (that’s … Read more
It is now confirmed that the Mind Sports Olympiad will once again host an online event as the Mental Calculations World Championship in the next few weeks! This will be a part of their Grand Prix, which includes over 100 tournaments in various games and mind sports. The format will be similar to the online … Read more
The Junior Mental Calculation World Championship returned to Bielefeld on the 1st–2nd October, as organized since 2008 by Caroline Merkel [official JMCWC website]. Around 50 competitors from Algeria, Germany, India, South Africa, Switzerland, Bulgaria, Lebanon, Bosnia & Herzegovina and Serbia attended—some for their first time, while others have attended for many years. There were many … Read more
The annual Mental Calculation event at the Mind Sports Olympiad took place on the 25th August—in person in London for the first time since 2019. This year, the format returned to the original paper exam—although with a shorter time limit—plus with the experimental addition of a live event, similar to the online events of 2020 … Read more
The 9th Mental Calculation World Cup has just taken place on the weekend of the 16th July 2022, organised by Ralf Laue. Many of the competitors had met before at the World Cup or at other international events, but others made their debut here. Congratulations to everyone involved! Personally, I would have loved to be … Read more
** Update: results ** Registration is open for the Junior Mental Calculation World Championship 2022! The event will be held on the 30th September–2nd October 2022 in Bielefeld (Germany). The main competition and the prize ceremony will be on October 2nd, so most people will leave on the morning of the 3rd. Since 2008 this international … Read more