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