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