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