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