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