**Conceptis launched KenDoku: Learning math will never be**
https://www.conceptispuzzles.com/index.aspx?uri=info/news/281

Nov 18, 2008 · Conceptis launched KenDoku: Learning math will never be the same! Tuesday, November 18, 2008. Conceptis announced KenDoku, a new number-logic puzzle that uses addition, subtraction, multiplication and division in creative and uncommon ways.Aiming to change the way people relate to basic mathematics, KenDoku is promised to provide hours of mind boggling fun while brain …

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