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