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