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