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