The bar chart compares the estimated IQ scores of six renowned chess players.

Overall, Kasparov and Carlsen have the highest IQ scores, while Tal has the lowest. Notably, there is a considerable gap between the highest and lowest IQs among these players.

Kasparov and Carlsen top the ranking with an estimated IQ of 190, closely followed by Fischer, whose IQ is 180. Polgár and Karpov hold the next position, with IQ scores of 170 each. In contrast, Tal has the lowest IQ, at 165, which is significantly lower than that of the highest-ranked players.