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