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