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