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