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