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