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