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