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