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