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