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