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