A scatterplot of chess player statistics uses two dropdown menus to select the x- and y-axis fields, including ELO ratings, birth year, federation, and title. A d3.brush overlay allows users to select a rectangular region of circles, highlighting those points in green and dimming the rest. The selected points retain their highlight while changing menus, enabling tracking of individual players across different statistical dimensions. The visualization updates axes and circle positions with a d3.transition and uses d3.scaleLinear and d3.scalePoint for quantitative and categorical fields.