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