ChessRef.com
ChessRef.com is an online database of chess games and puzzles with annotations, analysis, ratings, social interaction and much more. No download, addin or install is required : Just a web-browser. Users are not required to register. Game Openings analysis
Chess, ECO, Openings, PGN, chess analysis, annotation, immortal game, Middle game, sacrifice, attack FIDE rating, USCF rating, Puzzle
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