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