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