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