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