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