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