The episode centers around murders associated with moves on a chess board. Following the scene with Sidle and Sanders at the parking garage the scene then goes to the lab with the CSI techs analyzing evidence. The song playing is "Your Move" by Yes from 1971. The song alludes to the game of chess as a metaphor for relationships. Lyrics include the phrases "Take a straight and stronger course to the corner of your life. Make the white queen run so fast she hasn't got time to make you a wife. 'Cause it's time, it's time in time with your time and its news is captured for the queen to use. Move me to any black square."
George Eads (Nick Stokes) would eventually star in the reboot of MacGyver, in which Guest Star David Dastmalchian (Lee Crosby) would guest star as Murdoc.