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