I have a somewhat weird question that is only indirectly related to chess. I am trying to solve a chess-related puzzle in which I have to find games played by Soviet chess players based on positions. There are six positions given as images:
Can anyone recommend me some online database that would be able to find the corresponding games and would not be behind a paywall, if that exists at all? Then, would any AI algorithm be able to recognize such images and convert them to some standard format like PGN, or that still needs to be done manually?