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