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