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