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