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