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