(Select Actor or Writer to List Associated Episodes)
| Actors | Adaptations | Calendars | Duplicates | Numbers | Plots | Titles | Writers |
| Episode: | 0493 |
| Title: | Checkmate |
| Air Dates: | First Run - June 21, 1976
Repeat - October 3, 1976 |
| Plot: | A genius chess player is a suspect in the brutal murder of a friend and opponent. A New York detective gets involved with solving the murder in which the victim died from a puncture wound to the eye and into the brain. |
| Actors: |
Robert Dryden
Marian Haley Court Benson Ann Pitoniak |
| Writer: | Ian Martin |