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