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