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