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