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