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