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