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