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