Throwback Thursday: Kavalek dissects two queen sacrifices

The well-known grandmaster and author Lubomir Kavalek passed away last year in January. A prolific writer, he penned dozens of well-read chess columns, including one he shared on ChessBase over the years. Here we reproduce one from February 2017, in which Kavalek shows us a failed queen sacrifice by Jan Timman against him, and Caruana’s successful 19.Qxf6!! sac against Nakamura at the London Chess Classic.