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