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