Your goal is to find the secret four-color code. The following colors are possible: purple, blue, pink, brown, black, red.
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: ['black', 'blue', 'brown', 'red']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['purple', 'brown', 'black', 'black']. Hint: three colors are in the correct positions.
Guess: ['purple', 'brown', 'blue', 'black']. Hint: two colors are in the correct positions and two colors are in the secret code but in the wrong positions.
A B C D
red, pink, black, pink blue, purple, purple, black purple, brown, black, blue blue, pink, pink, black