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