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