Jonas von Essen

From Wikipedia, the free encyclopedia
Jonas von Essen
Jonas with pi.jpg
Jonas von Essen (2016)
Born (1991-04-24) 24 April 1991 (age 30)

Jonas von Essen (born 24 April 1991) is a Swedish, two-time world memory champion. He was a memory sports player from 2012 to 2015.[1] In April 2019 he co-founded memoryOS, an ed-tech startup developing memory improvement software.[2]

Biography[]

He was the third place (behind winner Johannes Mallow and runner-up ) in the 21st World Memory Championships in December 2012. He won the 22nd World Memory Championships in December 2013 and 24th World Memory Championships in December 2014.

On 12 March 2016 he recalled correctly 13,208 digits of memorized pi for 4 hours and 40 minutes according to the Pi World Ranking List. This was a Swedish record until 2019, when it was beaten by Henrik Lilliestråle.[3]

On 7 March 2020, he recalled 24,063 digits of pi, setting a new personal, Swedish, and European record.[3] His aim was to recall the first 100,000 digits but he made a mistake on the 24,064th. Three days later he became the first person ever to pass the "Olympus Mons of Memory Tests", being tested on samples from the first 100,000 digits. A random sequence of nine digits were read out and Jonas recalled the nine digits preceding and following these. This was repeated 50 times in a row without error to complete the challenge.[4]

See also[]

Sources[]

  1. ^ Jonas von Essen iam-stats.com
  2. ^ "Mnemonic device to improve memory with Jonas von Essen | memory OS". memoryOS.com. Retrieved 2020-04-02.
  3. ^ a b Pi World Ranking List
  4. ^ "World Pi Federation". www.worldpifederation.org. Retrieved 2021-04-29.{{cite web}}: CS1 maint: url-status (link)

External links[]


Retrieved from ""