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