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