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