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