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