While specific content depends on the source of the file, this package likely contains high-quality video coverage or databases from major 2020 chess events. Given the "2020" timeframe, the archive most likely includes: Likely Tournament Coverage

: A high-profile Chess960 (Fischer Random) tournament featuring top players like Magnus Carlsen and Garry Kasparov.

: An online national event featuring 12 of the strongest players in America.

Based on the naming convention, is the third segment of a split multi-volume RAR archive. Because it is a partial archive, it cannot be opened individually; you need all parts (e.g., .part1, .part2, .part3) in the same folder to extract the full contents.

: Portable Game Notation files containing the moves and professional annotations for every game played in these championships.

The following major championships took place or began in 2020:

: Part of the Champions Chess Tour, which featured intense matches and daily recaps. Possible File Types Inside the full extracted folder, you will typically find:

The 2020 U.S. Championship is an online national championship event, featuring 12 of the strongest chess players in America. YouTube·Saint Louis Chess Club