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Last years Mega Database is full of rapid and blitz games taken from live broadcast boards.

Is it possible to filter them out?

Are there other bases that have games only from long time controls?

I'd prefer to review long games only, so interesting novelty from your favorite player won't turn to be a game played in blitz game...

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  • 1
    Can you filter games based on the name of the event?
    – SmallChess
    Sep 27, 2017 at 0:57
  • @SmallChess As I use my own pgn parsing tool, I can add such a logic. I didn't find such a filter in chessbase, however.
    – hoacin
    Sep 27, 2017 at 5:27
  • There is a field in PGN named "TimeControl". You can filter games by this field.
    – Alexander Perechnev
    Sep 28, 2017 at 12:02

1 Answer 1

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Here's a sample PGN header (player names are skipped to protect the innocent):

[WhiteElo "2027"]
[BlackElo "2370"]
[BlackIsComp "Yes"]
[TimeControl "180+0"]
[Date "1999.12.31"]
[Time "23:02:00"]
[WhiteClock "0:03:00.000"]
[BlackClock "0:03:00.000"]
[ECO "D00"]
[PlyCount "100"]
[Result "0-1"]

There's no consensus, which fields are supposed to be included, but as a safe bet, I'd recommend to look for "WhiteClock/BlackClock" as well as for "TimeControl" -- at least one of them is usually present, if not both at the same time.

"TimeControl" is basically easier to parse, but since it might be not included, you might want to process White/BlackClock as well, just to be safe.

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