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