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