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