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