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