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