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