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