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