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