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