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