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