Your goal is to find the secret four-color code. The following colors are possible: green, yellow, blue, black, red, purple.
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: ['purple', 'blue', 'black', 'red']. Hint: three colors are in the correct positions.
Guess: ['green', 'yellow', 'blue', 'red']. 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
red, red, blue, black green, blue, black, red red, yellow, green, green yellow, purple, red, black