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