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