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