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