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