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