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