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