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