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