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