Your goal is to find the secret four-color code. The following colors are possible: green, purple, yellow, blue, pink, black.
Some guesses have already been made. I will provide feedback for each guess made with which it is possible to unambigiously determine the secret code.

Previous Guesses:
Guess: ['yellow', 'green', 'black', 'pink']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['green', 'purple', 'green', 'yellow']. Hint: one color is in the correct position.
Guess: ['green', 'black', 'pink', 'blue']. Hint: one color is in the correct position and two colors are in the secret code but in the wrong position.
Guess: ['pink', 'black', 'green', 'black']. Hint: two colors are in the secret code but in the wrong positions.
A B C D
purple, purple, green, purple black, blue, pink, yellow blue, blue, purple, blue blue, blue, green, yellow