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