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