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