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