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