Born in 1955 in Munich. Bruno Wiesend received his doctorate in pharmaceutical chemistry and came to chess in 1980 on the occasion of Candidates final between Hübner and Korchnoi. Best DWZ (German national rating): 2097 in 2005. Currently no longer active as a player, he has remained true to chess and as a fan of numbers he likes to deal with statistical evaluations and curve fitting.
2/24/2022 – In this article, statistician Bruno Wiesend reports on a scientific controversy about a study on the "Influence of intelligence and practice on the development of skills". The author considers the results of the study to be wrong due to methodological errors. | Photo: Pixabay
3/20/2020 – Vaci, Gula, & Bilalić (2015) found that “the more able players deteriorated more quickly” after their peak, but that their decline started to stabilize earlier in middle adulthood. The authors claimed the validity of Simonton’s (1997) model of career trajectories for chess players, and highlighted the beneficial influence of tournament practice in old age. They doubted the appropriateness of the FIDE database for scientific studies, and instead recommended the German database. It is now shown why Vaci et al.’s model led to drastically incorrect results, and how it has to be changed to work correctly. Chess trajectories are characterized by a long plateau phase and a gradually increasing decline. Playing more or fewer games does not affect the rating in old age.
Videos by Felix Blohberger: Reti Opening and Nico Zwirs: Najdorf Variation. "Olympiad Special": 21 analyses by Howell, Meier, Nguyen, Pelletier, Pichot, Van Foreest, Vitiugov, Wojtaszek and many more. Update Service with almost 40,000 new games!
Videos by Felix Blohberger: Reti Opening and Nico Zwirs: Najdorf Variation. "Olympiad Special": 21 analyses by Howell, Meier, Nguyen, Pelletier, Pichot, Van Foreest, Vitiugov, Wojtaszek and many more. Update Service with almost 40,000 new games!
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