Update README.md

README.md

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 <!-- Provide a quick summary of the dataset. -->
 ## Dataset Description
 
-4,679,273 chess puzzles, rated and tagged. See them in action on [Lichess](https://lichess.org/training/themes). 
+**4,800,453 chess puzzles**, rated and tagged. See them in action on [Lichess](https://lichess.org/training/themes). 
 
-This dataset is updated monthly, and was last updated on February 2nd, 2025.
+This dataset is updated monthly, and was last updated on March 7h, 2025.
 
 ### Dataset Creation
-Generating these chess puzzles took more than **50 years of CPU time**. We went through **300,000,000 analyzed 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](https://github.com/ornicar/lichess-puzzler/tree/master/tagger). To determine the rating, each attempt to solve is considered as a Glicko-2 rated game between the player and the puzzle. Finally, player votes refine the tags and define popularity.
+Generating the initial dataset chess puzzles took more than **50 years of CPU time**. We went through **300,000,000 analyzed 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](https://github.com/ornicar/lichess-puzzler/tree/master/tagger). To determine the rating, each attempt to solve is considered as a Glicko-2 rated game between the player and the puzzle. Finally, player votes refine the tags and define popularity.
 
 
 ### Dataset Usage