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