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