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