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