Chess analysis, An analysis of several thousand chess games…

An analysis of several thousand chess games, trying to visualize patterns in the moves made. Each type of piece has its own heatmap. Each square shows how often that type of piece (for either player) moved into that square. Red means lots of times, blue means fewer times. The boards follow the traditional layout convention (white at the bottom, black at the top). The area of the circles shows how often those moves resulted in a capture (or in the bottom diagram, a check). The same scale is used throughout, so you can compare how dangerous each type of piece is in different parts of the board. Python script to parse the PGN files, Processing to do the rendering.

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