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