"Mastermind"
By Bob Wiseman
ARCADIAN 3, no. 2 (Dec. 05, 1980): 19.


From the "Arcadian" newsletter:

In this version of "Mastermind," the computer holds a four-color code that you 
must guess. Enter the first letter of each color guessed via the keypad. Each 
BLACK response means a correct color in the correct spot, a WHITE response
means a correct color in the wrong spot.
