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