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