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