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