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