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