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