Your goal is to find the secret four-color code. The following colors are possible: green, orange, white, brown, blue, 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: ['blue', 'green', 'white', 'brown']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['green', 'orange', 'orange', 'white']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['orange', 'white', 'black', 'green']. 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, white, green, orange orange, blue, black, green brown, blue, brown, white brown, brown, green, blue