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