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