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