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