This paper presents evidence on biased voting by jurors from the Warsaw Pact countries who ranked high-level chess games. The roots of this bias are probably ideological, as there were no formal benefits for biased voting. Furthermore, this bias is observed only for jurors from Eastern...

In a beauty contest experiment with over 6,000 chess players, ranked from amateur to world class, we found that Grandmasters act very similar to other humans. This even holds true when they play exclusively against players of approximately their own strength. In line with psychological research...