Podcast in English
Text size
Bulgarian National Radio © 2025 All Rights Reserved

Kaloyan Geshev becomes world champion in mental calculation for the 4th time

Kaloyan Geshev
Photo: ruo-sofia-grad.com

Eighth-grader Kaloyan Geshev from the 125th Secondary School Boyan Penev in Sofia won his 4th world title in mental calculation thanks to his speed, accuracy and incredible concentration. The 2025 Mental Calculations World Championships Final took place online on April 13. Finalists from Serbia, Bulgaria, India and Italy competed in one of the highest levels of intellectual competition, said the Regional Department of Education- Sofia.

The Bulgarian News Agency (BTA) recalls that in November 2024, Kaloyan Geshev also achieved success at the Memoriad World Mental Olympics in the United Arab Emirates. Kaloyan Geshev won three medals in the competition, which featured over 150 participants from different countries. In September 2024, he also became the world vice-champion in mental speed calculation in one of the most difficult disciplines – inexact square roots.



Последвайте ни и в Google News Showcase, за да научите най-важното от деня!
Listen to the daily news from Bulgaria presented in "Bulgaria Today" podcast, available in Spotify.

More from category

Photo: Prehistoric salt production and urban center Provadia-Solnitsata

Ancient salt-production complex in Bulgaria's Provadia offers Open Day for visitors

This year, the team exploring the Provadia-Solnitsata archaeological complex is organizing an Open Day on September 22. A new visitor route has been prepared through the complex of the most ancient salt-producing and urban center in Europe...

published on 9/21/25 7:05 AM

The "Big Table" initiative will take place in Sofia for the last time this year

In the summer of 2024, a Sofia municipality and its residents showed how we can be happy and united as a community, sitting at one table. In July 2024, on Exarch Yosif Street and in September on Oborishte Street in the Bulgarian capital Sofia, the first..

published on 9/20/25 9:15 AM

The village of Dolni Rakovets near Pernik is hosting the Garlic Festival

The Garlic Festival will be held on September 21 and 22 at the stadium in the village of Dolni Rakovets, Radomir Municipality, Pernik Region . The event presents the traditional production of Dolni Rakovets garlic.  Due to the favorable soil..

published on 9/20/25 7:35 AM