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