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