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