Your goal is to find the secret four-color code. The following colors are possible: black, brown, purple, blue, yellow, 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: ['blue', 'brown', 'yellow', 'black']. Hint: two colors are in the correct positions.
Guess: ['black', 'black', 'yellow', 'yellow']. Hint: none of the guessed colors are present in the secret code.
Guess: ['purple', 'purple', 'brown', 'brown']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['blue', 'brown', 'purple', 'blue']. Hint: two colors are in the correct positions and one color is in the secret code but in the wrong positions.
A B C D
red, black, brown, purple blue, brown, blue, purple red, brown, black, red blue, brown, red, purple