Lichess puzzles, by ECO · Scott's blog

Siderite's Blog chess

chess-spark-miner/openingPerfSpeedBigSet at master · bjedrzejewski/chess-spark-miner · GitHub

For those that do not care about wins and losses, which openings are the ones that lead to the most interesting games? : r/chess

Holy Gambit Grail

King's Gambit Opening, PDF, Traditional Games

Bertin Estúdio

chess-openings/c.tsv at master · lichess-org/chess-openings · GitHub

January 2021

Chess in Fiction by Edward Winter

PDF) Numerical Investigation of M21 Aerofoil and Effect of Plain Flapper at Various Angle of Attack