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