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