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