Id,Puzzle Title,Date,Solver,Type,Setter,Constraints,Video,Video Length,Video Length (Minutes)
540,Playfair #540,2019-01-11,"[""Mark""]",Playfair,,"[""Classic""]","{""alt"":""Cracking a Playfair code"",""caption"":""Cracking a Playfair code"",""img_src"":""https://img.youtube.com/vi/n6ljkcJXVFY/mqdefault.jpg"",""href"":""https://www.youtube.com/watch?v=n6ljkcJXVFY""}",00:23:16,24