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