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