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