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