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