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