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