Popularity of chess openings over time

I made a program which forms a chart showing the popularity of opening moves in any PGN file to any depth! : r/chess

Chess Openings: The Definitive Guide (Perfect for Beginners!)

I was curious what openings were popular this year at the FIDE World Cup, so I compiled all the games and made this pie chart: : r/chess

memorization - Opening tree graph - Chess Stack Exchange

Incredible Second Wave of Interest in Chess

Types of Chess Openings and How They can Make or Break Your Game - CHESS KLUB

Chess Opening Popularity Over Time (higher quality)

Popularity of the Queen's Gambit (the opening) : r/chess

Queen's Gambit - Chess Openings

Quantifying the complexity and similarity of chess openings using online chess community data

The evolution of chess openings and why GIFs make for bad data visualizations

42 Openings That All Chess Players Should Know, PDF, Chess Openings

The Best Defenses in Chess: Popular Defensive Moves and Chess Openings

A data-driven exploration of the evolution of chess: Popularity of openings over time