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