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