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