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