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