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