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