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