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