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