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