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