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