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