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