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