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