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