Mental Calculation World Cup

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Mental Calculation World Cup is an international competition of mental calculators.

Mental Calculation World Cup 2004[edit]

The first Mental Calculation World Cup was held in Annaberg-Buchholz, Germany on 30 October 2004. There were 17 participants from 10 countries.

The World Cup involved the following contests (and two surprise tasks):

  • Adding ten 10-digit numbers, 10 tasks in 10 minutes
    • Winner: Alberto Coto (Spain); 10 correct results; 5:50 minutes, world record
  • Multiplying two 8-digit numbers, 10 tasks in 15 minutes
  • Calendar Calculations, two series one minute each, dates from the years 1600–2100
    • Winner: Matthias Kesselschläger (Germany), 33 correct results, world record
  • Square Root from 6-digit numbers, 10 tasks in 15 minutes

In the overall ranking the first place is taken by Robert Fountain (Great Britain), the runner-up was Jan van Koningsveld (Germany).

Mental Calculation World Cup 2006[edit]

The second Mental Calculation World Cup was held on 4 November 2006 in Gießen, Germany. 26 Calculators from 11 countries took part. The World Cup involved the following contests (and two surprise tasks):

  • Adding ten 10-digit numbers, 10 tasks in 10 minutes
    • Winner: Jorge Arturo Mendoza Huertas (Peru); 10 correct results
  • Multiplying two 8-digit numbers, 10 tasks in 15 minutes
  • Calendar Calculations, two series one minute each, dates from the years 1600–2100
    • Winner: Matthias Kesselschläger (Germany)
  • Square Root from 6-digit numbers, 10 tasks in 15 minutes
    • Winner: Robert Fountain (Great Britain)

Robert Fountain (Great Britain) defended his title in the overall competition, the places 2 to 4 have been won by Jan van Koningsveld (Netherlands), Gert Mittring (Germany) and Yusnier Viera Romero (Cuba).

Mental Calculation World Cup 2008[edit]

The Mental Calculation World Cup 2008 was held at the university of Leipzig, Germany on 1 July 2008. It attracted 28 calculators from 12 countries.

  • Adding ten 10-digit numbers, 10 tasks in 10 minutes
    • Winner: Alberto Coto (Spain), 10 correct results in 4:26 minutes. world record
  • Multiplying two 8-digit numbers, 10 tasks in 15 minutes
    • Winner: Alberto Coto (Spain), 10 correct results in 8:25 minutes, world record
  • Calendar Calculations, dates from the years 1600–2100, one minute
  • Square Root from 6-digit numbers, 10 tasks in 15 minutes

Alberto Coto (Spain) won the overall title. Jan van Koningsveld, starting for Germany this time, became second, and Jorge Arturo Mendoza Huertas (Peru) finished third. Robert Fountain, who won the title in 2004 and 2006, achieved a fourth rank.

Mental Calculation World Cup 2010[edit]

The Mental Calculation World Cup 2010 was held at the university of Magdeburg, Germany on 6–7 June 2010. It attracted 33 calculators from 13 countries.

  • Adding ten 10-digit numbers, 10 tasks in 10 minutes
    • Winner: Alberto Coto (Spain), 10 correct results in 3:42 minutes, world record
  • Multiplying two 8-digit numbers, 10 tasks in 15 minutes
    • Winner: Marc Jornet Sanz (Spain), 10 correct results in 4:56 minutes, world record
  • Calendar Calculations, dates from the years 1600–2100, one minute
    • Winner: Yusnier Viera (Cuba), 48 correct results, world cup record
  • Square Root from 6-digit numbers, 10 tasks in 6:51 minutes,world cup record
  • Most Versatile Calculator (the best score for solving six unknown "surprise tasks")

Priyanshi Somani (India) won the overall title. Marc Jornet Sanz (Spain) came second, and Alberto Coto finished third.

Mental Calculation World Cup 2012[edit]

The Mental Calculation World Cup 2012 was held from 30/9/2012 to 01/10/2012 in the Mathematikum museum in Gießen, Germany. 32 Calculators from 16 countries participated. The World Cup involved the following 5 main contests :

  • Adding ten 10-digit numbers, 10 tasks in 7 minutes
  • Multiplying two 8-digit numbers, 10 tasks in 10 minutes
  • Calendar Calculations, One minute, random dates from the years 1600–2100
  • Square Roots from 6-digit numbers, 10 tasks in 10 minutes
    • Winner: Naofumi Ogasawara (Japan), 8 correct results (each solved, up to all the first 8 digits: 3 integers and 5 decimals)
  • Cube Roots from 6-digit numbers, 10 tasks in 15 minutes
  • Most Versatile Calculator (the best score for solving another 5 unknown "surprise tasks")
  • Memoriad Trophy winner (score from the first 4 main contests),

Naofumi Ogasawara (Japan) won the title in the overall competition (combination of all 10 categories). Hua Wei Chan (Malaysia) was 2nd overall, and Jan van Koningsveld was 3rd.

Mental Calculation World Cup 2014[edit]

The Mental Calculation World Cup 2014 will take place on 10-12 October 2014 in Dresden, Germany.

See also[edit]

External links[edit]