Part of the attraction of the Netflix series “The Queen’s Gambit” is the design: costumes, buildings and music evoke the 1960s, the time in which the series is set. In a crucial scene of the series the Dutch band Shocking Blue provides the background music. Shocking Blue, founded in 1967, might not be as famous as other bands from the 1960s and 1970s but it still has ardent followers, and one of them is a prominent chess player and well-known coach. | Photo: Netflix