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