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