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