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