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