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