The Week in Chess (TWIC) is one of the longest-running chess news publications on the internet, founded by Mark Crowther in 1994 and still publishing weekly. Each issue covers the major tournaments of the past week with results, standings, annotated games, and links to full PGN downloads.

The weekly PGN files are the most widely used source of current tournament games, downloaded by players, database managers, and researchers worldwide. TWIC also maintains a searchable archive of all games published since 1994, representing one of the most comprehensive collections of professional-level games available for free.

The website and all downloads are free. For anyone who wants to keep their game database current with the latest master games, subscribing to the weekly TWIC download is the standard approach.