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Yusnier Viera

Yusnier Viera is a 41 year old Cuban American mental calculator. He is a 3x competitor at the Mental Calculation World Cup, holding top-6 overall finishes in 2006 and 2010, and also previously competed at Memoriad. Yusnier finished first or second in calendar dates in each of his MCWC competitions — and has an astonishing top score of 140 calendar dates (in one minute)!

ментална аритметика

Outside of competition, Yusnier has made several television appearances, including doing a calculation demonstration on the Ellen DeGeneres Show, created the Hectoc challenge, and wrote a book on arithmetic. Yusnier lives in South Florida with his family, where he serves as a math professor at Miami Dade College and runs his educational platform — EducUp.