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