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