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