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