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