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Lichess Puzzles By Eco Zip UPDATED

Generating these chess puzzles took more than 50 years of CPU time. We went through 300,000,000 analysed games from the Lichess database, and re-analyzed interesting positions with Stockfish 12/13/14/15 NNUE at 40 meganodes. The resulting puzzles were then automatically tagged. To determine the rating, each attempt to solve is considered as a Glicko2 rated game between the player and the puzzle. Finally, player votes refine the tags and define popularity.

Lichess Puzzles By Eco zip



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