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