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