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