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