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