From the documentation, you have to retrieve the file offset before reading the header, in order to be able to read the full game later on. We can thus create a game picker only using headers. According to the documentation (look at the _headers), it reduces the processing time for big files. Instead of reading the whole game, you can just read the game headers. Print(f"Game not found at index extracted and saved to:", output_file)Īny ideas on ways to modify this code or a different approach that I could take? Enter the game you want to annotate by moving the pieces on the board. Enter the names of the players, then click on 'Start Analysis Board'. Select 'Analysis' from this menu and click on 'Start Game'. I've also tried extracting a game by its index, which seems to work well for low index numbers, but if I try to extract something like game #1000000, it takes a while to run as well: def extract_game_by_index(pgn_file, game_index, output_file): Select the 'New Game' tab and click on the arrow at the end of the time control line (the top left line in the tab) to open a drop-down menu. However, this seems to take a long time to run and then it crashes and is hard to debug. Print("Random game extracted and saved to:", output_file) My original plan was to simply read a random chess game from this file like so: def extract_random_game(pgn_file, output_file): The approach I have taken was I have downloaded the caissabase chess database which is quite large and contains millions of chess games. I am trying to create a function that returns a random master chess game as a.
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