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