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