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