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