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