Your goal is to find the secret four-color code. The following colors are possible: white, red, green, brown, purple, 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: ['brown', 'white', 'red', 'green']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['white', 'purple', 'green', 'purple']. Hint: three colors are in the correct positions.
Guess: ['white', 'green', 'white', 'purple']. 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, black, green, purple black, black, red, brown black, black, black, purple black, green, red, green