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