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