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