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