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