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