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