Why did collections from this specific date become legendary? Because shortly July 2023, Chessable introduced DRM enhancements to their PGN exporter, making it harder to extract full variations without proprietary headers. Also, several top authors (e.g., GM Jan Gustafsson, GM Peter Heine Nielsen) began encrypting certain deep lines. Thus, July 15th became a last “golden era” for clean, unencumbered PGNs.
By July 2023, creators were advised to build their courses by first organizing annotations and variations in PGN files using tools like Lichess or ChessBase before importing them to maximize efficiency. chessable pgn collection as on 15th july 2023 t top
By mid-July 2023, Chessable had firmly established itself as the world’s leading platform for interactive chess learning. While its "MoveTrainer" courses (with video and spaced repetition) dominated the marketplace, a quieter, more powerful asset lived in the shadows: the Chessable PGN (Portable Game Notation) collection. Why did collections from this specific date become legendary