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