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