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