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