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