Jan van Koningsveld dating history
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Jan van Koningsveld is a member of the following lists: 1969 births, People from Emden and Mental calculators.
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| Birthday |
30th November, 1968
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Jan van Koningsveld (born 1969 in Emden) is a mental calculator. He is the champion of Extracting Square Roots of 2004 and 2008 as well as the champion of Calendar Calculation of 2008 at the Mental Calculation World Cups. In addition, he finished second in the overall rankings of 2004, 2006 and 2008.
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