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