Chess Notes by Edward Winter

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chess-canvas/pgn/chess_openings.csv at master · tomgp/chess-canvas · GitHub

Chess Trainer Hub - RagChess

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Why are a number of openings named after countries in chess (board games, naming, and culture)? - Quora

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What are this sub's thoughts on the Ruy Lopez: Rio de Janeiro

Most Aggressive opening Rio GAMBIT ACCEPTED RUY LOPEZ attack with black pieces, Berlin defense