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