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