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