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