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