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