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