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