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