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