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