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