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