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