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