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